svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.impl / src / main / java / org / gvsig / fmap / dal / feature / impl / DefaultFeatureQuery.java @ 46970
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2013 gvSIG Association.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 3
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.fmap.dal.feature.impl; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.Collection; |
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import java.util.HashMap; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Map; |
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import javax.json.JsonObject; |
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import org.apache.commons.lang3.ArrayUtils; |
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import org.apache.commons.lang3.StringUtils; |
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import org.gvsig.expressionevaluator.Expression; |
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import org.gvsig.expressionevaluator.ExpressionUtils; |
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import org.gvsig.fmap.dal.DALLocator; |
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import org.gvsig.fmap.dal.DataManager; |
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import org.gvsig.fmap.dal.DataTypes; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.exception.InitializeException; |
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import org.gvsig.expressionevaluator.ExpressionEvaluator; |
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import org.gvsig.expressionevaluator.MutableSymbolTable; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureQuery; |
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import org.gvsig.fmap.dal.feature.FeatureQueryOrder; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.impl.expressionevaluator.DefaultFeatureExpressionEvaluator; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dynobject.DynStruct; |
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import org.gvsig.tools.evaluator.AndEvaluator; |
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import org.gvsig.tools.evaluator.Evaluator; |
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import org.gvsig.tools.evaluator.EvaluatorFieldsInfo; |
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import org.gvsig.tools.persistence.PersistentState; |
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import org.gvsig.tools.persistence.exception.PersistenceException; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.gvsig.fmap.dal.feature.FeatureExtraColumns; |
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import org.gvsig.fmap.dal.feature.FeatureRuleExpression; |
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import org.gvsig.json.Json; |
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import org.gvsig.json.JsonArrayBuilder; |
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import org.gvsig.json.JsonObjectBuilder; |
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import org.gvsig.json.SupportJson; |
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import org.gvsig.json.SupportToJson; |
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import org.gvsig.tools.packageutils.Version; |
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import org.gvsig.tools.packageutils.impl.DefaultVersion; |
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/**
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* Defines the properties of a collection of Features, as a result of a query
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* through a FeatureStore.
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* <p>
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* A FeatureQuery is always defined by a FeatureType, or by the list of
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* attribute names of the FeatureStore to return.
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* </p>
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* <p>
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* The filter allows to select Features whose properties have values with the
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* characteristics defined by the filter.
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* </p>
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* <p>
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* The order is used to set the order of the result FeatureCollection, based on
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* the values of the properties of the Features.
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* </p>
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* <p>
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* The scale parameter can be used by the FeatureStore as a hint about the
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* quality or resolution of the data needed to view or operate with the data
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* returned. As an example, the FeatureStore may use the scale to return only a
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* representative subset of the data, or maybe to return Features with less
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* detail, like a point or a line instead of a polygon.
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* </p>
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* <p>
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* If an implementation of FeatureStore is able to get other parameters to
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* customize the behavior of the getDataCollection methods, there is an option
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* to set more parameters through the setAttribute method.
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* </p>
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*
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* @author 2009- <a href="cordinyana@gvsig.org">C?sar Ordi?ana</a> - gvSIG team
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*/
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public class DefaultFeatureQuery implements FeatureQuery { |
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private static final Logger LOGGER = LoggerFactory.getLogger(DefaultFeatureQuery.class); |
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public static final String SCALE_PARAM_NAME = "Scale"; |
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private static final Version VERSION_2_6_0 = ToolsLocator.getPackageManager().createVersion("2.6.0"); |
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private Map<String,Object> queryParameters = new HashMap(); |
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private String featureTypeId = null; |
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private List<String> attributeNames = new ArrayList(); |
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private List<String> constantsAttributeNames = new ArrayList(); |
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private Evaluator filter;
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private FeatureQueryOrder order = new DefaultFeatureQueryOrder(); |
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private long limit; |
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private long pageSize; |
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private List<String> groupByColumns; |
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private Map<String,String> aggregateFunctions; |
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private FeatureExtraColumns extraColumns = new DefaultFeatureExtraColumns(); |
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private MutableSymbolTable symbolTable;
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private String storeName; |
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private boolean useSubquery; |
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/**
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* Creates a FeatureQuery which will load all available Features of a type.
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*
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*/
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public DefaultFeatureQuery() {
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super();
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this.useSubquery = true; // true for backwards compatibility. |
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this.limit = NO_LIMIT;
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this.pageSize = 0; |
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} |
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public DefaultFeatureQuery(String storeName) { |
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this();
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this.storeName = storeName;
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} |
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/**
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* Creates a FeatureQuery which will load all available Features of a type.
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*
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* @param featureType
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* the type of Features of the query
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*/
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public DefaultFeatureQuery(FeatureType featureType) {
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this();
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this.setFeatureType(featureType);
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} |
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/**
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* Creates a FeatureQuery with the type of features, a filter and the order
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* for the FeatureCollection.
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*
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* @param featureType
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* the type of Features of the query
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* @param filter
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* based on the properties of the Features
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*/
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public DefaultFeatureQuery(FeatureType featureType, Evaluator filter) {
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this();
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this.setFeatureType(featureType);
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this.filter = filter;
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} |
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/**
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* Creates a FeatureQuery with the type of features, a filter, the order for
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* the FeatureCollection and the view scale.
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*
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* @param featureType
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* the type of Features of the query
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* @param filter
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* based on the properties of the Features
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* @param scale
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* to view the Features.
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*/
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public DefaultFeatureQuery(FeatureType featureType, Evaluator filter,
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double scale) {
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this();
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this.setFeatureType(featureType);
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this.filter = filter;
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this.setScale(scale);
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} |
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/**
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* Creates a FeatureQuery which will load a list of attribute names of all
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* available Features.
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*
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* @param attributeNames
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* the list of attribute names to load
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*/
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public DefaultFeatureQuery(String[] attributeNames) { |
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this();
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setAttributeNames(attributeNames); |
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} |
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/**
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* Creates a FeatureQuery with the list of attribute names of feature, a
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* filter and the order for the FeatureCollection.
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*
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* @param attributeNames
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* the list of attribute names to load
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* @param filter
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* based on the properties of the Features
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*/
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public DefaultFeatureQuery(String[] attributeNames, Evaluator filter) { |
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this();
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setAttributeNames(attributeNames); |
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this.filter = filter;
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} |
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/**
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* Creates a FeatureQuery with the list of attribute names of feature, a
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* filter, the order for the FeatureCollection and the view scale.
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*
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* @param attributeNames
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* the list of attribute names to load
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* @param filter
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* based on the properties of the Features
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* @param scale
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* to view the Features.
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*/
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public DefaultFeatureQuery(String[] attributeNames, Evaluator filter, |
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double scale) {
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this();
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setAttributeNames(attributeNames); |
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this.filter = filter;
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this.setScale(scale);
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} |
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@Override
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public double getScale() { |
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Double scale = (Double) this.getQueryParameter(SCALE_PARAM_NAME); |
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if (scale == null) { |
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return 0; |
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} |
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return scale;
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} |
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@Override
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public final void setScale(double scale) { |
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this.setQueryParameter(SCALE_PARAM_NAME, scale);
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} |
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@Override
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public Object getQueryParameter(String name) { |
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return queryParameters.get(name);
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} |
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@Override
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public void setQueryParameter(String name, Object value) { |
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queryParameters.put(name, value); |
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} |
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@Override
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public final void setFeatureType(FeatureType featureType) { |
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this.featureTypeId = featureType.getId();
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} |
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@Override
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public String[] getAttributeNames() { |
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if (this.hasExtraColumnDeclaredAsGroupByField()) { |
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this.retrievesAllAttributes();
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} |
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return (String[])attributeNames.toArray(new String[attributeNames.size()]); |
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} |
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private boolean hasExtraColumnDeclaredAsGroupByField() { |
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// indica si un campo de agrupaciones es una columna calculada
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if (this.hasGroupByColumns()) { |
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for (String groupByColumn : groupByColumns) { |
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if (this.extraColumns.get(groupByColumn)!=null) { |
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return true; |
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} |
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} |
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} |
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return false; |
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} |
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@Override
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public final void setAttributeNames(String[] attributeNames) { |
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this.attributeNames.clear();
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if (attributeNames != null){ |
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this.attributeNames.addAll(Arrays.asList(attributeNames)); |
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} |
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} |
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@Override
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public void retrievesAllAttributes() { |
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this.attributeNames.clear();
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} |
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@Override
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public void addAttributeName(String attributeName){ |
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//If the attribute exists finish the method
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for (int i=0 ; i<attributeNames.size() ; i++){ |
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if (attributeNames.get(i).equals(attributeName)){
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return;
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} |
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} |
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this.attributeNames.add(attributeName);
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} |
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@Override
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public void addEssentialAttributeNames(FeatureStore store) { |
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FeatureType storeType; |
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try {
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storeType = store.getDefaultFeatureType(); |
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} catch (DataException ex) {
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throw new RuntimeException("Can't access to the default feature type of tghe store", ex); |
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} |
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FeatureAttributeDescriptor[] pks = storeType.getPrimaryKey();
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if( storeType.hasOID() || ArrayUtils.isEmpty(pks) ) {
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FeatureAttributeDescriptor attrInt = null;
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FeatureAttributeDescriptor attrStr = null;
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FeatureAttributeDescriptor attrNotGeom = null;
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for (FeatureAttributeDescriptor attr : storeType) {
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if( attrInt == null && (attr.getType()==DataTypes.INT || attr.getType()==DataTypes.LONG) ) { |
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attrInt = attr; |
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} else if( attrStr == null && attr.getType()==DataTypes.STRING ) { |
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attrStr = attr; |
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} else if( attrNotGeom == null && attr.getType()!=DataTypes.GEOMETRY ) { |
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attrNotGeom = attr; |
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} |
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} |
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if( attrInt != null ) { |
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this.addAttributeName(attrInt.getName());
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} else if( attrStr != null ) { |
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this.addAttributeName(attrStr.getName());
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} else if( attrNotGeom != null ) { |
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this.addAttributeName(attrNotGeom.getName());
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} else {
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this.addAttributeName(storeType.getAttributeDescriptor(0).getName()); |
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} |
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} else {
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for(FeatureAttributeDescriptor attr : pks ) {
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this.addAttributeName(attr.getName());
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} |
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} |
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} |
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@Override
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public void addPrimaryKeyAttributeNames(FeatureStore store) { |
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FeatureType storeType; |
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try {
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storeType = store.getDefaultFeatureType(); |
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} catch (DataException ex) {
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throw new RuntimeException("Can't access to the default feature type of tghe store", ex); |
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} |
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for(FeatureAttributeDescriptor attr : storeType.getPrimaryKey() ) {
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this.addAttributeName(attr.getName());
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} |
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} |
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@Override
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public boolean hasAttributeNames() { |
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if (hasExtraColumnDeclaredAsGroupByField()) {
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return true; |
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} |
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return !this.attributeNames.isEmpty(); |
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} |
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@Override
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public void clearAttributeNames() { |
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this.attributeNames = new ArrayList(); |
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} |
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@Override
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public Evaluator getFilter() {
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if( this.filter instanceof ExpressionEvaluator ) { |
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ExpressionEvaluator eefilter = (ExpressionEvaluator) this.filter;
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if( symbolTable != null ) { |
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eefilter.addSymbolTable(symbolTable); |
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} |
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} |
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return filter;
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} |
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@Override
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public Expression getExpressionFilter() { |
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if( this.filter instanceof ExpressionEvaluator ) { |
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ExpressionEvaluator eefilter = (ExpressionEvaluator) this.filter;
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if( symbolTable != null ) { |
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eefilter.addSymbolTable(symbolTable); |
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} |
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return eefilter.toExpression();
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} |
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return null; |
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} |
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@Override
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public void setFilter(Expression filter) { |
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if( filter == null ) { |
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this.clearFilter();
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return;
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} |
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Evaluator x = new DefaultFeatureExpressionEvaluator(storeName, filter);
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this.setFilter(x);
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} |
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@Override
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public void setFilter(String filter) { |
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if( StringUtils.isEmpty(filter) ) {
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this.clearFilter();
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return;
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} |
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try {
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this.setFilter(ExpressionUtils.createExpression(filter));
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} catch (Exception ex) { |
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throw new RuntimeException("Can't create filter from '"+filter+"'",ex); |
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} |
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} |
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|
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@Override
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public void setFilter(Evaluator filter) { |
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if( filter == null ) { |
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this.clearFilter();
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return;
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} |
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this.filter = filter;
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addFilterAttributes(filter); |
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} |
436 |
|
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@Override
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public void addFilter(String filter) { |
439 |
if( StringUtils.isEmpty(filter) ) {
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return;
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} |
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this.addFilter(ExpressionUtils.createExpression(filter));
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} |
444 |
|
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@Override
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public void addFilter(Expression filter) { |
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Evaluator x = new DefaultFeatureExpressionEvaluator(filter);
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this.addFilter(x);
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} |
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|
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@Override
|
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public void addFilter(Evaluator evaluator) { |
453 |
if (evaluator == null) { |
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return;
|
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} |
456 |
if (this.filter == null) { |
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this.filter = evaluator;
|
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} else {
|
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if (this.filter instanceof AndEvaluator) { |
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((AndEvaluator) this.filter).addEvaluator(evaluator);
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} else {
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this.filter = new AndEvaluator(this.filter); |
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((AndEvaluator) this.filter).addEvaluator(evaluator);
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} |
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} |
466 |
addFilterAttributes(evaluator); |
467 |
} |
468 |
|
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@Override
|
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public void clearFilter() { |
471 |
this.filter = null; |
472 |
} |
473 |
|
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private void addFilterAttributes(Evaluator evaluator){ |
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if (evaluator != null){ |
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EvaluatorFieldsInfo fieldsInfo = evaluator.getFieldsInfo(); |
477 |
if (fieldsInfo == null){ |
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// FieldsInfo is not available in this evaluator
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return;
|
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} |
481 |
String[] fieldNames = fieldsInfo.getFieldNames(); |
482 |
if (fieldNames== null){ |
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// fieldNames is not available in this evaluator
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return;
|
485 |
} |
486 |
|
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for (String fieldName : fieldNames) { |
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addAttributeName(fieldName); |
489 |
} |
490 |
} |
491 |
} |
492 |
|
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@Override
|
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public FeatureQueryOrder getOrder() {
|
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return order;
|
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} |
497 |
|
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@Override
|
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public void setOrder(FeatureQueryOrder order) { |
500 |
if(order == null){ |
501 |
this.order = new DefaultFeatureQueryOrder(); |
502 |
} else {
|
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this.order = order;
|
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} |
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} |
506 |
|
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@Override
|
508 |
public boolean hasFilter() { |
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return this.filter != null; |
510 |
} |
511 |
|
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@Override
|
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public boolean hasLimit() { |
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return this.limit != NO_LIMIT; |
515 |
} |
516 |
|
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@Override
|
518 |
public boolean hasOrder() { |
519 |
return this.order != null && this.order.size() > 0; |
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} |
521 |
|
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@Override
|
523 |
public Object clone() throws CloneNotSupportedException { |
524 |
DefaultFeatureQuery clone = (DefaultFeatureQuery) super.clone();
|
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|
526 |
// Clone attribute names array
|
527 |
if (attributeNames != null) { |
528 |
clone.attributeNames = new ArrayList(); |
529 |
for (int i=0 ; i<attributeNames.size() ; i++){ |
530 |
clone.attributeNames.add(attributeNames.get(i)); |
531 |
} |
532 |
} |
533 |
|
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// Clone order
|
535 |
if (order != null) { |
536 |
clone.order = (FeatureQueryOrder) order.clone(); |
537 |
} |
538 |
|
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clone.extraColumns = extraColumns.getCopy(); |
540 |
|
541 |
if( this.filter instanceof ExpressionEvaluator ) { |
542 |
Expression exp = ((ExpressionEvaluator)this.filter).toExpression(); |
543 |
clone.filter = new DefaultFeatureExpressionEvaluator(exp);
|
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} |
545 |
|
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if (groupByColumns!=null) { |
547 |
clone.groupByColumns = new ArrayList<>(); |
548 |
for (String value : groupByColumns) { |
549 |
clone.groupByColumns.add(value); |
550 |
} |
551 |
} else {
|
552 |
clone.groupByColumns = null;
|
553 |
} |
554 |
|
555 |
|
556 |
if (aggregateFunctions!=null) { |
557 |
clone.aggregateFunctions = new HashMap<>(); |
558 |
for (String key : aggregateFunctions.keySet()) { |
559 |
clone.aggregateFunctions.put(key, aggregateFunctions.get(key)); |
560 |
} |
561 |
} else {
|
562 |
clone.aggregateFunctions = null;
|
563 |
} |
564 |
if( this.symbolTable!=null ) { |
565 |
clone.symbolTable = this.symbolTable.clone();
|
566 |
} |
567 |
|
568 |
return clone;
|
569 |
} |
570 |
|
571 |
@Override
|
572 |
public FeatureQuery getCopy() {
|
573 |
try {
|
574 |
return (FeatureQuery) clone();
|
575 |
} catch (CloneNotSupportedException e) { |
576 |
LOGGER.debug("Can't clone feature query",e);
|
577 |
return null; |
578 |
} |
579 |
// DefaultFeatureQuery aCopy = new DefaultFeatureQuery();
|
580 |
//
|
581 |
// aCopy.featureTypeId = this.featureTypeId;
|
582 |
//
|
583 |
// if (this.attributeNames != null) {
|
584 |
// aCopy.attributeNames = (String[]) Arrays
|
585 |
// .asList(this.attributeNames).toArray(new String[0]);
|
586 |
// }
|
587 |
//
|
588 |
// aCopy.filter = this.filter;
|
589 |
//
|
590 |
// if (this.order != null) {
|
591 |
// aCopy.order = this.order.getCopy();
|
592 |
// }
|
593 |
//
|
594 |
// return aCopy;
|
595 |
} |
596 |
|
597 |
@Override
|
598 |
public String getFeatureTypeId() { |
599 |
return featureTypeId;
|
600 |
} |
601 |
|
602 |
@Override
|
603 |
public void setFeatureTypeId(String featureTypeId) { |
604 |
this.featureTypeId = featureTypeId;
|
605 |
} |
606 |
|
607 |
@Override
|
608 |
public void saveToState(PersistentState state) throws PersistenceException { |
609 |
// FIXME: falta por terminar de implementar
|
610 |
state.set("version", VERSION_2_6_0);
|
611 |
state.set("queryParameters", this.queryParameters); |
612 |
state.set("featureTypeId", this.featureTypeId); |
613 |
state.set("attributeNames", this.attributeNames); |
614 |
|
615 |
ArrayList<Expression> filterList = new ArrayList<>(); |
616 |
if (this.filter instanceof DefaultFeatureExpressionEvaluator) { |
617 |
DefaultFeatureExpressionEvaluator filterExpression = (DefaultFeatureExpressionEvaluator) this.filter;
|
618 |
filterList.add(filterExpression.toExpression()); |
619 |
} else if (this.filter instanceof AndEvaluator) { |
620 |
AndEvaluator filterAnd = (AndEvaluator) this.filter;
|
621 |
List<Evaluator> evaluators = filterAnd.getEvaluators();
|
622 |
for (Evaluator evaluator : evaluators) {
|
623 |
if (evaluator instanceof DefaultFeatureExpressionEvaluator) { |
624 |
DefaultFeatureExpressionEvaluator expressionEvaluator = (DefaultFeatureExpressionEvaluator) evaluator; |
625 |
filterList.add(expressionEvaluator.toExpression()); |
626 |
} else {
|
627 |
filterList.clear(); |
628 |
LOGGER.warn(StringUtils.join("Filters in this FeatureQuery will not persist:", this.toString())); |
629 |
break;
|
630 |
} |
631 |
} |
632 |
} else {
|
633 |
filterList.clear(); |
634 |
if( this.filter!=null ) { |
635 |
LOGGER.warn(StringUtils.join("Filters in this FeatureQuery will not persist:", this.toString())); |
636 |
} |
637 |
} |
638 |
|
639 |
state.set("filter", filterList);
|
640 |
state.set("limit", this.limit); |
641 |
state.set("pageSize", this.pageSize); |
642 |
state.set("useSubquery", this.useSubquery); |
643 |
|
644 |
state.set("order", this.order); |
645 |
state.set("groupByColumns", this.groupByColumns); |
646 |
state.set("aggregateFunctions", this.aggregateFunctions); |
647 |
state.set("extraColumn", this.extraColumns); |
648 |
state.set("storeName", this.storeName); |
649 |
|
650 |
|
651 |
} |
652 |
|
653 |
|
654 |
@Override
|
655 |
public void loadFromState(PersistentState state) throws PersistenceException { |
656 |
// FIXME: falta por terminar de implementar
|
657 |
Version version = (Version) state.get("version");
|
658 |
this.queryParameters = (Map) state.get("queryParameters"); |
659 |
this.featureTypeId = state.getString("featureTypeId"); |
660 |
this.attributeNames = state.getList("attributeNames"); |
661 |
List<Expression> filterList = state.getList("filter"); |
662 |
String stateFilter = ""; |
663 |
DataManager dataManager = DALLocator.getDataManager(); |
664 |
if (filterList.isEmpty()) {
|
665 |
this.filter = null; |
666 |
} else if (filterList.size() == 1) { |
667 |
Expression expression = filterList.get(0); |
668 |
Evaluator evaluator; |
669 |
try {
|
670 |
evaluator = dataManager.createFilter(expression); |
671 |
} catch (InitializeException ex) {
|
672 |
LOGGER.warn("Can't create evaluator", ex);
|
673 |
evaluator = null;
|
674 |
} |
675 |
this.filter = evaluator;
|
676 |
} else {
|
677 |
AndEvaluator andEvaluator = null;
|
678 |
for (Expression expression : filterList) { |
679 |
Evaluator evaluator; |
680 |
try {
|
681 |
evaluator = dataManager.createFilter(expression); |
682 |
|
683 |
if (andEvaluator == null) { |
684 |
andEvaluator = new AndEvaluator(evaluator);
|
685 |
} else {
|
686 |
andEvaluator.addEvaluator(evaluator); |
687 |
} |
688 |
} catch (InitializeException ex) {
|
689 |
LOGGER.warn("Can't create AndEvaluator", ex);//TODO evaluator a null |
690 |
break;
|
691 |
} |
692 |
this.filter = evaluator;
|
693 |
|
694 |
} |
695 |
} |
696 |
this.limit = state.getLong("limit"); |
697 |
if(version == null || version.compareTo(VERSION_2_6_0)<0){ |
698 |
if(this.limit == 0) { |
699 |
this.clearLimit();
|
700 |
} |
701 |
} |
702 |
this.pageSize = state.getLong("pageSize"); |
703 |
this.useSubquery = state.getBoolean("useSubquery",true); |
704 |
this.storeName = state.getString("storeName"); |
705 |
|
706 |
|
707 |
this.order = (FeatureQueryOrder) state.get("order"); |
708 |
List asListGroupByColumns = (List) state.getList("groupByColumns"); |
709 |
if (asListGroupByColumns!=null) { |
710 |
this.groupByColumns = new ArrayList<>(asListGroupByColumns); |
711 |
} else {
|
712 |
this.groupByColumns = null; |
713 |
} |
714 |
Map asMapAggregateFunctions = (Map) state.getMap("aggregateFunctions"); |
715 |
if (asMapAggregateFunctions!=null) { |
716 |
this.aggregateFunctions = new HashMap<>(asMapAggregateFunctions); |
717 |
} else {
|
718 |
this.aggregateFunctions = null; |
719 |
} |
720 |
this.extraColumns = (FeatureExtraColumns) state.get("extraColumn"); |
721 |
|
722 |
|
723 |
} |
724 |
|
725 |
public static void selfRegister() { |
726 |
registerPersistent(); |
727 |
Json.registerSerializer(DefaultFeatureQuery.class); |
728 |
} |
729 |
|
730 |
/**
|
731 |
* Register the class on PersistenceManager
|
732 |
*
|
733 |
*/
|
734 |
private static void registerPersistent() { |
735 |
DynStruct definition = |
736 |
ToolsLocator.getPersistenceManager() |
737 |
.addDefinition(DefaultFeatureQuery.class, |
738 |
"DefaultFeatureQuery",
|
739 |
"DefaultFeatureQuery Persistent definition",
|
740 |
null,
|
741 |
null);
|
742 |
|
743 |
|
744 |
definition.addDynFieldObject("version")
|
745 |
.setClassOfValue(DefaultVersion.class) |
746 |
.setMandatory(false);
|
747 |
|
748 |
definition.addDynFieldMap("queryParameters")
|
749 |
.setClassOfItems(Object.class)
|
750 |
.setMandatory(true);
|
751 |
|
752 |
definition.addDynFieldString("featureTypeId").setMandatory(false); |
753 |
|
754 |
definition.addDynFieldList("attributeNames")
|
755 |
.setClassOfItems(String.class)
|
756 |
.setMandatory(false);
|
757 |
|
758 |
definition.addDynFieldList("filter")
|
759 |
.setClassOfItems(Expression.class)
|
760 |
.setMandatory(false);
|
761 |
|
762 |
definition.addDynFieldObject("order")
|
763 |
.setClassOfValue(FeatureQueryOrder.class) |
764 |
.setMandatory(false);
|
765 |
|
766 |
definition.addDynFieldLong("limit").setMandatory(false); |
767 |
|
768 |
definition.addDynFieldLong("pageSize").setMandatory(false); |
769 |
|
770 |
definition.addDynFieldBoolean("useSubquery").setMandatory(false); |
771 |
|
772 |
definition.addDynFieldList("groupByColumns")
|
773 |
.setClassOfItems(String.class);
|
774 |
|
775 |
definition.addDynFieldMap("aggregateFunctions")
|
776 |
.setClassOfItems(String.class)
|
777 |
.setClassOfValue(String.class);
|
778 |
|
779 |
definition.addDynFieldObject("extraColumn")
|
780 |
.setClassOfValue(DefaultFeatureExtraColumns.class); |
781 |
|
782 |
definition.addDynFieldString("storeName").setMandatory(false); |
783 |
|
784 |
} |
785 |
|
786 |
@Override
|
787 |
public long getLimit() { |
788 |
return limit;
|
789 |
} |
790 |
|
791 |
@Override
|
792 |
public long getPageSize() { |
793 |
return pageSize;
|
794 |
} |
795 |
|
796 |
@Override
|
797 |
public void setLimit(long limit) { |
798 |
this.limit = limit;
|
799 |
} |
800 |
|
801 |
@Override
|
802 |
public void clearLimit() { |
803 |
this.limit = NO_LIMIT;
|
804 |
} |
805 |
|
806 |
@Override
|
807 |
public void setPageSize(long pageSize) { |
808 |
this.pageSize = pageSize;
|
809 |
} |
810 |
|
811 |
@Override
|
812 |
public String[] getConstantsAttributeNames() { |
813 |
return (String[])constantsAttributeNames.toArray(new String[constantsAttributeNames.size()]); |
814 |
} |
815 |
|
816 |
@Override
|
817 |
public void setConstantsAttributeNames(String[] constantsAttributeNames) { |
818 |
this.constantsAttributeNames.clear();
|
819 |
if (constantsAttributeNames != null){ |
820 |
this.constantsAttributeNames.addAll(Arrays.asList(constantsAttributeNames)); |
821 |
} |
822 |
} |
823 |
|
824 |
@Override
|
825 |
public void addConstantAttributeName(String attributeName) { |
826 |
//If the attribute exists finish the method
|
827 |
for (int i=0 ; i<constantsAttributeNames.size() ; i++){ |
828 |
if (constantsAttributeNames.get(i).equals(attributeName)){
|
829 |
return;
|
830 |
} |
831 |
} |
832 |
this.constantsAttributeNames.add(attributeName);
|
833 |
} |
834 |
|
835 |
@Override
|
836 |
public boolean hasConstantsAttributeNames() { |
837 |
return !this.constantsAttributeNames.isEmpty(); |
838 |
} |
839 |
|
840 |
@Override
|
841 |
public void clearConstantsAttributeNames() { |
842 |
this.constantsAttributeNames = new ArrayList(); |
843 |
} |
844 |
|
845 |
@Override
|
846 |
public boolean isAGroupByColumn(String name) { |
847 |
if( groupByColumns==null ) { |
848 |
return false; |
849 |
} |
850 |
for (String columnName : groupByColumns) { |
851 |
if( StringUtils.equalsIgnoreCase(name, columnName) ) {
|
852 |
return true; |
853 |
} |
854 |
} |
855 |
return false; |
856 |
} |
857 |
|
858 |
@Override
|
859 |
public List<String> getGroupByColumns() { |
860 |
if( this.groupByColumns == null ) { |
861 |
this.groupByColumns = new ArrayList<>(); |
862 |
} |
863 |
return this.groupByColumns; |
864 |
} |
865 |
|
866 |
@Override
|
867 |
public void removeGroupByColumn(String colname) { |
868 |
if( this.groupByColumns == null ) { |
869 |
return;
|
870 |
} |
871 |
this.groupByColumns.remove(colname);
|
872 |
} |
873 |
|
874 |
@Override
|
875 |
public void addAggregate(String funcName, String columnName) { |
876 |
Map<String, String> aggregateds = this.getAggregateFunctions(); |
877 |
aggregateds.put(columnName, funcName); |
878 |
} |
879 |
|
880 |
@Override
|
881 |
public Map<String, String> getAggregateFunctions() { |
882 |
if( this.aggregateFunctions == null ) { |
883 |
this.aggregateFunctions = new HashMap<>(); |
884 |
} |
885 |
return this.aggregateFunctions; |
886 |
} |
887 |
|
888 |
@Override
|
889 |
public void removeAggregateFunction(String colname) { |
890 |
if( this.aggregateFunctions == null ) { |
891 |
return;
|
892 |
} |
893 |
for (Iterator<Map.Entry<String, String>> iterator = this.getAggregateFunctions().entrySet().iterator(); iterator.hasNext();) { |
894 |
Map.Entry<String, String> entry = iterator.next(); |
895 |
String attrName = entry.getKey();
|
896 |
String function = entry.getValue();
|
897 |
if(StringUtils.equalsIgnoreCase(colname, attrName)){
|
898 |
iterator.remove(); |
899 |
return;
|
900 |
} |
901 |
} |
902 |
} |
903 |
|
904 |
@Override
|
905 |
public String getAggregateFunction(String name){ |
906 |
for (Map.Entry<String, String> entry : this.getAggregateFunctions().entrySet()) { |
907 |
String attrName = entry.getKey();
|
908 |
String function = entry.getValue();
|
909 |
if(StringUtils.equalsIgnoreCase(name, attrName)){
|
910 |
return function;
|
911 |
} |
912 |
} |
913 |
return null; |
914 |
} |
915 |
|
916 |
@Override
|
917 |
public String getAggregate(String name) { |
918 |
String fn = this.getAggregateFunction(name); |
919 |
if( StringUtils.isAlphanumeric(fn) ) {
|
920 |
return fn + "(\""+ name + "\")"; |
921 |
} |
922 |
return fn;
|
923 |
} |
924 |
|
925 |
@Override
|
926 |
public String getAggregate(String tableName, String name) { |
927 |
String fn = this.getAggregateFunction(name); |
928 |
if (!tableName.startsWith("\"")) { |
929 |
tableName = "\""+tableName+"\""; |
930 |
} |
931 |
if( StringUtils.isAlphanumeric(fn) ) {
|
932 |
return fn + "("+tableName+".\""+ name + "\")"; |
933 |
} |
934 |
return fn;
|
935 |
} |
936 |
|
937 |
@Override
|
938 |
public boolean isAggregate(String name) { |
939 |
return this.getAggregateFunction(name) != null; |
940 |
} |
941 |
|
942 |
@Override
|
943 |
public boolean hasAggregateFunctions() { |
944 |
return this.aggregateFunctions != null && !this.aggregateFunctions.isEmpty(); |
945 |
} |
946 |
|
947 |
@Override
|
948 |
public boolean hasGroupByColumns() { |
949 |
return this.groupByColumns != null && !this.groupByColumns.isEmpty(); |
950 |
} |
951 |
|
952 |
private void clear() { |
953 |
this.queryParameters = new HashMap(); |
954 |
|
955 |
// this.featureTypeId = other.featureTypeId;
|
956 |
// this.storeName = other.storeName;
|
957 |
|
958 |
this.clearConstantsAttributeNames();
|
959 |
this.clearAttributeNames();
|
960 |
this.clearFilter();
|
961 |
this.clearLimit();
|
962 |
this.setOrder(null); |
963 |
this.useSubquery = true; // true for backwards compatibility. |
964 |
this.limit = NO_LIMIT;
|
965 |
this.pageSize = 0; |
966 |
this.groupByColumns = null; |
967 |
this.aggregateFunctions=null; |
968 |
this.extraColumns = new DefaultFeatureExtraColumns(); |
969 |
this.symbolTable = null; |
970 |
|
971 |
} |
972 |
|
973 |
@Override
|
974 |
public void copyFrom(FeatureQuery query) { |
975 |
if( query == null ) { |
976 |
this.clear();
|
977 |
return;
|
978 |
} |
979 |
DefaultFeatureQuery other = (DefaultFeatureQuery) query; |
980 |
this.queryParameters = new HashMap(); |
981 |
this.queryParameters.putAll(other.queryParameters);
|
982 |
|
983 |
this.featureTypeId = other.featureTypeId;
|
984 |
|
985 |
this.attributeNames.clear();
|
986 |
this.attributeNames.addAll(other.attributeNames);
|
987 |
|
988 |
this.constantsAttributeNames.clear();
|
989 |
this.constantsAttributeNames.addAll(other.constantsAttributeNames);
|
990 |
|
991 |
this.filter = other.filter;
|
992 |
|
993 |
this.order.copyFrom(other.order);
|
994 |
|
995 |
this.limit = other.limit;
|
996 |
|
997 |
this.pageSize = other.pageSize;
|
998 |
this.useSubquery = other.useSubquery;
|
999 |
|
1000 |
if( this.groupByColumns!=null && other.groupByColumns!=null ) { |
1001 |
this.groupByColumns.clear();
|
1002 |
this.groupByColumns.addAll(other.groupByColumns);
|
1003 |
} else if( other.groupByColumns!=null ) { |
1004 |
this.groupByColumns = new ArrayList<>(); |
1005 |
this.groupByColumns.addAll(other.groupByColumns);
|
1006 |
} else if( this.groupByColumns!=null ) { |
1007 |
this.groupByColumns = null; |
1008 |
} |
1009 |
|
1010 |
if( this.aggregateFunctions!=null && other.aggregateFunctions!=null ) { |
1011 |
this.aggregateFunctions.clear();
|
1012 |
this.aggregateFunctions.putAll(other.aggregateFunctions);
|
1013 |
} else if( other.aggregateFunctions!=null ) { |
1014 |
this.aggregateFunctions = new HashMap<>(other.aggregateFunctions); |
1015 |
} else if( this.aggregateFunctions!=null ) { |
1016 |
this.aggregateFunctions=null; |
1017 |
} |
1018 |
this.extraColumns.copyFrom(other.extraColumns);
|
1019 |
if( other.symbolTable!=null ) { |
1020 |
try {
|
1021 |
this.symbolTable = other.symbolTable.clone();
|
1022 |
} catch (CloneNotSupportedException ex) { |
1023 |
LOGGER.debug("Can't clone symbol table",ex);
|
1024 |
} |
1025 |
} |
1026 |
this.storeName = other.storeName;
|
1027 |
} |
1028 |
|
1029 |
@Override
|
1030 |
public FeatureExtraColumns getExtraColumns() {
|
1031 |
return this.extraColumns; |
1032 |
} |
1033 |
|
1034 |
@Override
|
1035 |
@Deprecated
|
1036 |
public FeatureExtraColumns getExtraColumn() {
|
1037 |
return this.extraColumns; |
1038 |
} |
1039 |
|
1040 |
@Override
|
1041 |
public MutableSymbolTable getSymbolTable() {
|
1042 |
return symbolTable;
|
1043 |
} |
1044 |
|
1045 |
@Override
|
1046 |
public void setSymbolTable(MutableSymbolTable symbolTable) { |
1047 |
this.symbolTable = symbolTable;
|
1048 |
} |
1049 |
|
1050 |
@Override
|
1051 |
public void setVar(String name, Object value) { |
1052 |
if( this.symbolTable==null ) { |
1053 |
this.symbolTable = ExpressionUtils.createSymbolTable();
|
1054 |
} |
1055 |
this.symbolTable.setVar(name, value);
|
1056 |
} |
1057 |
|
1058 |
@Override
|
1059 |
public boolean isUseSubquery() { |
1060 |
return useSubquery;
|
1061 |
} |
1062 |
|
1063 |
@Override
|
1064 |
public void setUseSubquery(boolean useSubquery) { |
1065 |
this.useSubquery = useSubquery;
|
1066 |
} |
1067 |
|
1068 |
@Override
|
1069 |
public void fromJson(JsonObject json) { |
1070 |
DataManager dataManager = DALLocator.getDataManager(); |
1071 |
|
1072 |
String s = json.getString("version",null); |
1073 |
Version version = s==null?null:Version.valueOf(s); |
1074 |
|
1075 |
this.queryParameters = Json.toMap(json, "queryParameters"); |
1076 |
this.featureTypeId = json.getString("featureTypeId", null); |
1077 |
|
1078 |
this.attributeNames = new ArrayList<>(); |
1079 |
Collection theAttributeNames = Json.toCollection(json,"attributeNames"); |
1080 |
if( theAttributeNames!=null ) { |
1081 |
this.attributeNames.addAll(theAttributeNames);
|
1082 |
} |
1083 |
|
1084 |
List<Expression> filterList = null; |
1085 |
Collection theFilter = Json.toCollection(json, "filter"); |
1086 |
if( theFilter!=null ) { |
1087 |
filterList = new ArrayList<>(theFilter); |
1088 |
} |
1089 |
if (filterList==null || filterList.isEmpty()) { |
1090 |
this.filter = null; |
1091 |
} else if (filterList.size() == 1) { |
1092 |
Expression expression = filterList.get(0); |
1093 |
Evaluator evaluator; |
1094 |
try {
|
1095 |
evaluator = dataManager.createFilter(expression); |
1096 |
} catch (InitializeException ex) {
|
1097 |
LOGGER.warn("Can't create evaluator", ex);
|
1098 |
evaluator = null;
|
1099 |
} |
1100 |
this.filter = evaluator;
|
1101 |
} else {
|
1102 |
AndEvaluator andEvaluator = null;
|
1103 |
for (Expression expression : filterList) { |
1104 |
Evaluator evaluator; |
1105 |
try {
|
1106 |
evaluator = dataManager.createFilter(expression); |
1107 |
|
1108 |
if (andEvaluator == null) { |
1109 |
andEvaluator = new AndEvaluator(evaluator);
|
1110 |
} else {
|
1111 |
andEvaluator.addEvaluator(evaluator); |
1112 |
} |
1113 |
} catch (InitializeException ex) {
|
1114 |
LOGGER.warn("Can't create AndEvaluator", ex);//TODO evaluator a null |
1115 |
break;
|
1116 |
} |
1117 |
this.filter = evaluator;
|
1118 |
|
1119 |
} |
1120 |
} |
1121 |
this.limit = json.getInt("limit"); |
1122 |
if(version == null || version.compareTo(VERSION_2_6_0)<0){ |
1123 |
if(this.limit == 0) { |
1124 |
this.clearLimit();
|
1125 |
} |
1126 |
} |
1127 |
this.pageSize = json.getInt("pageSize"); |
1128 |
this.useSubquery = json.getBoolean("useSubquery",true); |
1129 |
this.storeName = json.getString("storeName"); |
1130 |
|
1131 |
|
1132 |
this.order = (FeatureQueryOrder) Json.toObject(json, "order"); |
1133 |
|
1134 |
Collection<String> theGroupByColumns = Json.toCollection(json.getJsonArray("groupByColumns")); |
1135 |
if (theGroupByColumns!=null) { |
1136 |
this.groupByColumns = new ArrayList<>(theGroupByColumns); |
1137 |
} else {
|
1138 |
this.groupByColumns = null; |
1139 |
} |
1140 |
|
1141 |
|
1142 |
Map asMapAggregateFunctions = Json.toMap(json,"aggregateFunctions"); |
1143 |
if (asMapAggregateFunctions!=null) { |
1144 |
this.aggregateFunctions = new HashMap<>(asMapAggregateFunctions); |
1145 |
} else {
|
1146 |
this.aggregateFunctions = null; |
1147 |
} |
1148 |
this.extraColumns = (FeatureExtraColumns) Json.toObject(json,"extraColumn"); |
1149 |
} |
1150 |
|
1151 |
@Override
|
1152 |
public JsonObjectBuilder toJsonBuilder() {
|
1153 |
JsonObjectBuilder state = Json.createObjectBuilder(); |
1154 |
state.add("version", VERSION_2_6_0.toString());
|
1155 |
state.add("queryParameters", this.queryParameters); |
1156 |
state.add("featureTypeId", this.featureTypeId); |
1157 |
state.add("attributeNames", this.attributeNames); |
1158 |
|
1159 |
JsonArrayBuilder filterList = Json.createArrayBuilder(); |
1160 |
if (this.filter instanceof DefaultFeatureExpressionEvaluator) { |
1161 |
DefaultFeatureExpressionEvaluator filterExpression = (DefaultFeatureExpressionEvaluator) this.filter;
|
1162 |
filterList.add(filterExpression.toExpression()); |
1163 |
} else if (this.filter instanceof AndEvaluator) { |
1164 |
AndEvaluator filterAnd = (AndEvaluator) this.filter;
|
1165 |
List<Evaluator> evaluators = filterAnd.getEvaluators();
|
1166 |
for (Evaluator evaluator : evaluators) {
|
1167 |
if (evaluator instanceof DefaultFeatureExpressionEvaluator) { |
1168 |
DefaultFeatureExpressionEvaluator expressionEvaluator = (DefaultFeatureExpressionEvaluator) evaluator; |
1169 |
filterList.add(expressionEvaluator.toExpression()); |
1170 |
} else {
|
1171 |
filterList = Json.createArrayBuilder(); |
1172 |
LOGGER.warn(StringUtils.join("Filters in this FeatureQuery will not persist:", this.toString())); |
1173 |
break;
|
1174 |
} |
1175 |
} |
1176 |
} else {
|
1177 |
filterList = Json.createArrayBuilder(); |
1178 |
if( this.filter!=null ) { |
1179 |
LOGGER.warn(StringUtils.join("Filters in this FeatureQuery will not persist:", this.toString())); |
1180 |
} |
1181 |
} |
1182 |
|
1183 |
state.add("filter", filterList);
|
1184 |
state.add("limit", this.limit); |
1185 |
state.add("pageSize", this.pageSize); |
1186 |
state.add("useSubquery", this.useSubquery); |
1187 |
|
1188 |
state.add("order", (SupportJson) this.order); |
1189 |
state.add("groupByColumns", this.groupByColumns); |
1190 |
state.add("aggregateFunctions", this.aggregateFunctions); |
1191 |
state.add("extraColumn", (SupportToJson) this.extraColumns); |
1192 |
state.add("storeName", this.storeName); |
1193 |
|
1194 |
return state;
|
1195 |
} |
1196 |
|
1197 |
} |