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 @ 46748
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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.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 java.util.logging.Level; |
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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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/**
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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 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 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 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 void setAttributeNames(String[] attributeNames) { |
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this.attributeNames.clear();
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if (attributeNames != null){ |
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for (int i=0 ; i<attributeNames.length ; i++){ |
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this.attributeNames.add(attributeNames[i]);
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} |
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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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} |
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|
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@Override
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public void addFilter(String filter) { |
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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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} |
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|
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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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} |
440 |
|
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@Override
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public void addFilter(Evaluator evaluator) { |
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if (evaluator == null) { |
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return;
|
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} |
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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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} |
455 |
} |
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addFilterAttributes(evaluator); |
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} |
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|
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@Override
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public void clearFilter() { |
461 |
this.filter = null; |
462 |
} |
463 |
|
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private void addFilterAttributes(Evaluator evaluator){ |
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if (evaluator != null){ |
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EvaluatorFieldsInfo fieldsInfo = evaluator.getFieldsInfo(); |
467 |
if (fieldsInfo == null){ |
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// FieldsInfo is not available in this evaluator
|
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return;
|
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} |
471 |
String[] fieldNames = fieldsInfo.getFieldNames(); |
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if (fieldNames== null){ |
473 |
// fieldNames is not available in this evaluator
|
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return;
|
475 |
} |
476 |
|
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for (int i=0 ; i<fieldNames.length ; i++){ |
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addAttributeName(fieldNames[i]); |
479 |
} |
480 |
} |
481 |
} |
482 |
|
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@Override
|
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public FeatureQueryOrder getOrder() {
|
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return order;
|
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} |
487 |
|
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@Override
|
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public void setOrder(FeatureQueryOrder order) { |
490 |
if(order == null){ |
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this.order = new DefaultFeatureQueryOrder(); |
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} else {
|
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this.order = order;
|
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} |
495 |
} |
496 |
|
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@Override
|
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public boolean hasFilter() { |
499 |
return this.filter != null; |
500 |
} |
501 |
|
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@Override
|
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public boolean hasLimit() { |
504 |
return this.limit != NO_LIMIT; |
505 |
} |
506 |
|
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@Override
|
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public boolean hasOrder() { |
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return this.order != null && this.order.size() > 0; |
510 |
} |
511 |
|
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@Override
|
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public Object clone() throws CloneNotSupportedException { |
514 |
DefaultFeatureQuery clone = (DefaultFeatureQuery) super.clone();
|
515 |
|
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// Clone attribute names array
|
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if (attributeNames != null) { |
518 |
clone.attributeNames = new ArrayList(); |
519 |
for (int i=0 ; i<attributeNames.size() ; i++){ |
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clone.attributeNames.add(attributeNames.get(i)); |
521 |
} |
522 |
} |
523 |
|
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// Clone order
|
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if (order != null) { |
526 |
clone.order = (FeatureQueryOrder) order.clone(); |
527 |
} |
528 |
|
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clone.extraColumns = extraColumns.getCopy(); |
530 |
|
531 |
if( this.filter instanceof ExpressionEvaluator ) { |
532 |
Expression exp = ((ExpressionEvaluator)this.filter).toExpression(); |
533 |
clone.filter = new DefaultFeatureExpressionEvaluator(exp);
|
534 |
} |
535 |
|
536 |
if (groupByColumns!=null) { |
537 |
clone.groupByColumns = new ArrayList<String>(); |
538 |
for (String value : groupByColumns) { |
539 |
clone.groupByColumns.add(value); |
540 |
} |
541 |
} else {
|
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clone.groupByColumns = null;
|
543 |
} |
544 |
|
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|
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if (aggregateFunctions!=null) { |
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clone.aggregateFunctions = new HashMap<String, String>(); |
548 |
for (String key : aggregateFunctions.keySet()) { |
549 |
clone.aggregateFunctions.put(key, aggregateFunctions.get(key)); |
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} |
551 |
} else {
|
552 |
clone.aggregateFunctions = null;
|
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} |
554 |
if( this.symbolTable!=null ) { |
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clone.symbolTable = this.symbolTable.clone();
|
556 |
} |
557 |
|
558 |
return clone;
|
559 |
} |
560 |
|
561 |
@Override
|
562 |
public FeatureQuery getCopy() {
|
563 |
try {
|
564 |
return (FeatureQuery) clone();
|
565 |
} catch (CloneNotSupportedException e) { |
566 |
LOGGER.debug("Can't clone feature query",e);
|
567 |
return null; |
568 |
} |
569 |
// DefaultFeatureQuery aCopy = new DefaultFeatureQuery();
|
570 |
//
|
571 |
// aCopy.featureTypeId = this.featureTypeId;
|
572 |
//
|
573 |
// if (this.attributeNames != null) {
|
574 |
// aCopy.attributeNames = (String[]) Arrays
|
575 |
// .asList(this.attributeNames).toArray(new String[0]);
|
576 |
// }
|
577 |
//
|
578 |
// aCopy.filter = this.filter;
|
579 |
//
|
580 |
// if (this.order != null) {
|
581 |
// aCopy.order = this.order.getCopy();
|
582 |
// }
|
583 |
//
|
584 |
// return aCopy;
|
585 |
} |
586 |
|
587 |
@Override
|
588 |
public String getFeatureTypeId() { |
589 |
return featureTypeId;
|
590 |
} |
591 |
|
592 |
@Override
|
593 |
public void setFeatureTypeId(String featureTypeId) { |
594 |
this.featureTypeId = featureTypeId;
|
595 |
} |
596 |
|
597 |
@Override
|
598 |
public void saveToState(PersistentState state) throws PersistenceException { |
599 |
// FIXME: falta por terminar de implementar
|
600 |
state.set("queryParameters", this.queryParameters); |
601 |
state.set("featureTypeId", this.featureTypeId); |
602 |
state.set("attributeNames", this.attributeNames); |
603 |
|
604 |
ArrayList<Expression> filterList = new ArrayList<>(); |
605 |
if (this.filter instanceof DefaultFeatureExpressionEvaluator) { |
606 |
DefaultFeatureExpressionEvaluator filterExpression = (DefaultFeatureExpressionEvaluator) this.filter;
|
607 |
filterList.add(filterExpression.toExpression()); |
608 |
} else if (this.filter instanceof AndEvaluator) { |
609 |
AndEvaluator filterAnd = (AndEvaluator) this.filter;
|
610 |
List<Evaluator> evaluators = filterAnd.getEvaluators();
|
611 |
for (Evaluator evaluator : evaluators) {
|
612 |
if (evaluator instanceof DefaultFeatureExpressionEvaluator) { |
613 |
DefaultFeatureExpressionEvaluator expressionEvaluator = (DefaultFeatureExpressionEvaluator) evaluator; |
614 |
filterList.add(expressionEvaluator.toExpression()); |
615 |
} else {
|
616 |
filterList.clear(); |
617 |
LOGGER.warn(StringUtils.join("Filters in this FeatureQuery will not persist:", this.toString())); |
618 |
break;
|
619 |
} |
620 |
} |
621 |
} else {
|
622 |
filterList.clear(); |
623 |
if( this.filter!=null ) { |
624 |
LOGGER.warn(StringUtils.join("Filters in this FeatureQuery will not persist:", this.toString())); |
625 |
} |
626 |
} |
627 |
|
628 |
state.set("filter", filterList);
|
629 |
state.set("limit", this.limit); |
630 |
state.set("pageSize", this.pageSize); |
631 |
state.set("useSubquery", this.useSubquery); |
632 |
|
633 |
state.set("order", this.order); |
634 |
state.set("groupByColumns", this.groupByColumns); |
635 |
state.set("aggregateFunctions", this.aggregateFunctions); |
636 |
state.set("extraColumn", this.extraColumns); |
637 |
state.set("storeName", this.storeName); |
638 |
|
639 |
|
640 |
} |
641 |
|
642 |
|
643 |
@Override
|
644 |
public void loadFromState(PersistentState state) throws PersistenceException { |
645 |
// FIXME: falta por terminar de implementar
|
646 |
this.queryParameters = (Map) state.get("queryParameters"); |
647 |
this.featureTypeId = state.getString("featureTypeId"); |
648 |
this.attributeNames = state.getList("attributeNames"); |
649 |
List<Expression> filterList = state.getList("filter"); |
650 |
String stateFilter = ""; |
651 |
DataManager dataManager = DALLocator.getDataManager(); |
652 |
if (filterList.size() == 0) { |
653 |
this.filter = null; |
654 |
} else if (filterList.size() == 1) { |
655 |
Expression expression = filterList.get(0); |
656 |
Evaluator evaluator; |
657 |
try {
|
658 |
evaluator = dataManager.createFilter(expression); |
659 |
} catch (InitializeException ex) {
|
660 |
LOGGER.warn("Can't create evaluator", ex);
|
661 |
evaluator = null;
|
662 |
} |
663 |
this.filter = evaluator;
|
664 |
} else {
|
665 |
AndEvaluator andEvaluator = null;
|
666 |
for (Expression expression : filterList) { |
667 |
Evaluator evaluator; |
668 |
try {
|
669 |
evaluator = dataManager.createFilter(expression); |
670 |
|
671 |
if (andEvaluator == null) { |
672 |
andEvaluator = new AndEvaluator(evaluator);
|
673 |
} else {
|
674 |
andEvaluator.addEvaluator(evaluator); |
675 |
} |
676 |
} catch (InitializeException ex) {
|
677 |
LOGGER.warn("Can't create AndEvaluator", ex);//TODO evaluator a null |
678 |
break;
|
679 |
} |
680 |
this.filter = evaluator;
|
681 |
|
682 |
} |
683 |
} |
684 |
this.limit = state.getLong("limit"); |
685 |
this.pageSize = state.getLong("pageSize"); |
686 |
this.useSubquery = state.getBoolean("useSubquery",true); |
687 |
this.storeName = state.getString("storeName"); |
688 |
|
689 |
|
690 |
this.order = (FeatureQueryOrder) state.get("order"); |
691 |
List asListGroupByColumns = (List) state.getList("groupByColumns"); |
692 |
if (asListGroupByColumns!=null) { |
693 |
this.groupByColumns = new ArrayList<>(asListGroupByColumns); |
694 |
} else {
|
695 |
this.groupByColumns = null; |
696 |
} |
697 |
Map asMapAggregateFunctions = (Map) state.getMap("aggregateFunctions"); |
698 |
if (asMapAggregateFunctions!=null) { |
699 |
this.aggregateFunctions = new HashMap<>(asMapAggregateFunctions); |
700 |
} else {
|
701 |
this.aggregateFunctions = null; |
702 |
} |
703 |
this.extraColumns = (FeatureExtraColumns) state.get("extraColumn"); |
704 |
|
705 |
|
706 |
} |
707 |
|
708 |
/**
|
709 |
* Register the class on PersistenceManager
|
710 |
*
|
711 |
*/
|
712 |
public static void registerPersistent() { |
713 |
DynStruct definition = |
714 |
ToolsLocator.getPersistenceManager() |
715 |
.addDefinition(DefaultFeatureQuery.class, |
716 |
"DefaultFeatureQuery",
|
717 |
"DefaultFeatureQuery Persistent definition",
|
718 |
null,
|
719 |
null);
|
720 |
|
721 |
definition.addDynFieldMap("queryParameters")
|
722 |
.setClassOfItems(Object.class)
|
723 |
.setMandatory(true);
|
724 |
|
725 |
definition.addDynFieldString("featureTypeId").setMandatory(false); |
726 |
|
727 |
definition.addDynFieldList("attributeNames")
|
728 |
.setClassOfItems(String.class)
|
729 |
.setMandatory(false);
|
730 |
|
731 |
definition.addDynFieldList("filter")
|
732 |
.setClassOfItems(Expression.class)
|
733 |
.setMandatory(false);
|
734 |
|
735 |
definition.addDynFieldObject("order")
|
736 |
.setClassOfValue(FeatureQueryOrder.class) |
737 |
.setMandatory(false);
|
738 |
|
739 |
definition.addDynFieldLong("limit").setMandatory(false); |
740 |
|
741 |
definition.addDynFieldLong("pageSize").setMandatory(false); |
742 |
|
743 |
definition.addDynFieldBoolean("useSubquery").setMandatory(false); |
744 |
|
745 |
definition.addDynFieldList("groupByColumns")
|
746 |
.setClassOfItems(String.class);
|
747 |
|
748 |
definition.addDynFieldMap("aggregateFunctions")
|
749 |
.setClassOfItems(String.class)
|
750 |
.setClassOfValue(String.class);
|
751 |
|
752 |
definition.addDynFieldObject("extraColumn")
|
753 |
.setClassOfValue(DefaultFeatureExtraColumns.class); |
754 |
|
755 |
definition.addDynFieldString("storeName").setMandatory(false); |
756 |
|
757 |
} |
758 |
|
759 |
@Override
|
760 |
public long getLimit() { |
761 |
return limit;
|
762 |
} |
763 |
|
764 |
@Override
|
765 |
public long getPageSize() { |
766 |
return pageSize;
|
767 |
} |
768 |
|
769 |
@Override
|
770 |
public void setLimit(long limit) { |
771 |
this.limit = limit;
|
772 |
} |
773 |
|
774 |
@Override
|
775 |
public void clearLimit() { |
776 |
this.limit = NO_LIMIT;
|
777 |
} |
778 |
|
779 |
@Override
|
780 |
public void setPageSize(long pageSize) { |
781 |
this.pageSize = pageSize;
|
782 |
} |
783 |
|
784 |
@Override
|
785 |
public String[] getConstantsAttributeNames() { |
786 |
return (String[])constantsAttributeNames.toArray(new String[constantsAttributeNames.size()]); |
787 |
} |
788 |
|
789 |
@Override
|
790 |
public void setConstantsAttributeNames(String[] constantsAttributeNames) { |
791 |
this.constantsAttributeNames.clear();
|
792 |
if (constantsAttributeNames != null){ |
793 |
for (int i=0 ; i<constantsAttributeNames.length ; i++){ |
794 |
this.constantsAttributeNames.add(constantsAttributeNames[i]);
|
795 |
} |
796 |
} |
797 |
} |
798 |
|
799 |
@Override
|
800 |
public void addConstantAttributeName(String attributeName) { |
801 |
//If the attribute exists finish the method
|
802 |
for (int i=0 ; i<constantsAttributeNames.size() ; i++){ |
803 |
if (constantsAttributeNames.get(i).equals(attributeName)){
|
804 |
return;
|
805 |
} |
806 |
} |
807 |
this.constantsAttributeNames.add(attributeName);
|
808 |
} |
809 |
|
810 |
@Override
|
811 |
public boolean hasConstantsAttributeNames() { |
812 |
return !this.constantsAttributeNames.isEmpty(); |
813 |
} |
814 |
|
815 |
@Override
|
816 |
public void clearConstantsAttributeNames() { |
817 |
this.constantsAttributeNames = new ArrayList(); |
818 |
} |
819 |
|
820 |
@Override
|
821 |
public boolean isAGroupByColumn(String name) { |
822 |
if( groupByColumns==null ) { |
823 |
return false; |
824 |
} |
825 |
for (String columnName : groupByColumns) { |
826 |
if( StringUtils.equalsIgnoreCase(name, columnName) ) {
|
827 |
return true; |
828 |
} |
829 |
} |
830 |
return false; |
831 |
} |
832 |
|
833 |
@Override
|
834 |
public List<String> getGroupByColumns() { |
835 |
if( this.groupByColumns == null ) { |
836 |
this.groupByColumns = new ArrayList<>(); |
837 |
} |
838 |
return this.groupByColumns; |
839 |
} |
840 |
|
841 |
@Override
|
842 |
public void removeGroupByColumn(String colname) { |
843 |
if( this.groupByColumns == null ) { |
844 |
return;
|
845 |
} |
846 |
this.groupByColumns.remove(colname);
|
847 |
} |
848 |
|
849 |
@Override
|
850 |
public void addAggregate(String funcName, String columnName) { |
851 |
Map<String, String> aggregateds = this.getAggregateFunctions(); |
852 |
aggregateds.put(columnName, funcName); |
853 |
} |
854 |
|
855 |
@Override
|
856 |
public Map<String, String> getAggregateFunctions() { |
857 |
if( this.aggregateFunctions == null ) { |
858 |
this.aggregateFunctions = new HashMap<>(); |
859 |
} |
860 |
return this.aggregateFunctions; |
861 |
} |
862 |
|
863 |
@Override
|
864 |
public void removeAggregateFunction(String colname) { |
865 |
if( this.aggregateFunctions == null ) { |
866 |
return;
|
867 |
} |
868 |
for (Iterator<Map.Entry<String, String>> iterator = this.getAggregateFunctions().entrySet().iterator(); iterator.hasNext();) { |
869 |
Map.Entry<String, String> entry = iterator.next(); |
870 |
String attrName = entry.getKey();
|
871 |
String function = entry.getValue();
|
872 |
if(StringUtils.equalsIgnoreCase(colname, attrName)){
|
873 |
iterator.remove(); |
874 |
return;
|
875 |
} |
876 |
} |
877 |
} |
878 |
|
879 |
@Override
|
880 |
public String getAggregateFunction(String name){ |
881 |
for (Map.Entry<String, String> entry : this.getAggregateFunctions().entrySet()) { |
882 |
String attrName = entry.getKey();
|
883 |
String function = entry.getValue();
|
884 |
if(StringUtils.equalsIgnoreCase(name, attrName)){
|
885 |
return function;
|
886 |
} |
887 |
} |
888 |
return null; |
889 |
} |
890 |
|
891 |
@Override
|
892 |
public String getAggregate(String name) { |
893 |
String fn = this.getAggregateFunction(name); |
894 |
if( StringUtils.isAlphanumeric(fn) ) {
|
895 |
return fn + "(\""+ name + "\")"; |
896 |
} |
897 |
return fn;
|
898 |
} |
899 |
|
900 |
@Override
|
901 |
public String getAggregate(String tableName, String name) { |
902 |
String fn = this.getAggregateFunction(name); |
903 |
if (!tableName.startsWith("\"")) { |
904 |
tableName = "\""+tableName+"\""; |
905 |
} |
906 |
if( StringUtils.isAlphanumeric(fn) ) {
|
907 |
return fn + "("+tableName+".\""+ name + "\")"; |
908 |
} |
909 |
return fn;
|
910 |
} |
911 |
|
912 |
@Override
|
913 |
public boolean isAggregate(String name) { |
914 |
return this.getAggregateFunction(name) != null; |
915 |
} |
916 |
|
917 |
@Override
|
918 |
public boolean hasAggregateFunctions() { |
919 |
return this.aggregateFunctions != null && !this.aggregateFunctions.isEmpty(); |
920 |
} |
921 |
|
922 |
@Override
|
923 |
public boolean hasGroupByColumns() { |
924 |
return this.groupByColumns != null && !this.groupByColumns.isEmpty(); |
925 |
} |
926 |
|
927 |
private void clear() { |
928 |
this.queryParameters = new HashMap(); |
929 |
|
930 |
// this.featureTypeId = other.featureTypeId;
|
931 |
// this.storeName = other.storeName;
|
932 |
|
933 |
this.clearConstantsAttributeNames();
|
934 |
this.clearAttributeNames();
|
935 |
this.clearFilter();
|
936 |
this.clearLimit();
|
937 |
this.setOrder(null); |
938 |
this.useSubquery = true; // true for backwards compatibility. |
939 |
this.limit = NO_LIMIT;
|
940 |
this.pageSize = 0; |
941 |
this.groupByColumns = null; |
942 |
this.aggregateFunctions=null; |
943 |
this.extraColumns = new DefaultFeatureExtraColumns(); |
944 |
this.symbolTable = null; |
945 |
|
946 |
} |
947 |
|
948 |
@Override
|
949 |
public void copyFrom(FeatureQuery query) { |
950 |
if( query == null ) { |
951 |
this.clear();
|
952 |
return;
|
953 |
} |
954 |
DefaultFeatureQuery other = (DefaultFeatureQuery) query; |
955 |
this.queryParameters = new HashMap(); |
956 |
this.queryParameters.putAll(other.queryParameters);
|
957 |
|
958 |
this.featureTypeId = other.featureTypeId;
|
959 |
|
960 |
this.attributeNames.clear();
|
961 |
this.attributeNames.addAll(other.attributeNames);
|
962 |
|
963 |
this.constantsAttributeNames.clear();
|
964 |
this.constantsAttributeNames.addAll(other.constantsAttributeNames);
|
965 |
|
966 |
this.filter = other.filter;
|
967 |
|
968 |
this.order.copyFrom(other.order);
|
969 |
|
970 |
this.limit = other.limit;
|
971 |
|
972 |
this.pageSize = other.pageSize;
|
973 |
this.useSubquery = other.useSubquery;
|
974 |
|
975 |
if( this.groupByColumns!=null && other.groupByColumns!=null ) { |
976 |
this.groupByColumns.clear();
|
977 |
this.groupByColumns.addAll(other.groupByColumns);
|
978 |
} else if( other.groupByColumns!=null ) { |
979 |
this.groupByColumns = new ArrayList<>(); |
980 |
this.groupByColumns.addAll(other.groupByColumns);
|
981 |
} else if( this.groupByColumns!=null ) { |
982 |
this.groupByColumns = null; |
983 |
} |
984 |
|
985 |
if( this.aggregateFunctions!=null && other.aggregateFunctions!=null ) { |
986 |
this.aggregateFunctions.clear();
|
987 |
this.aggregateFunctions.putAll(other.aggregateFunctions);
|
988 |
} else if( other.aggregateFunctions!=null ) { |
989 |
this.aggregateFunctions = new HashMap<>(other.aggregateFunctions); |
990 |
} else if( this.aggregateFunctions!=null ) { |
991 |
this.aggregateFunctions=null; |
992 |
} |
993 |
this.extraColumns.copyFrom(other.extraColumns);
|
994 |
if( other.symbolTable!=null ) { |
995 |
try {
|
996 |
this.symbolTable = other.symbolTable.clone();
|
997 |
} catch (CloneNotSupportedException ex) { |
998 |
LOGGER.debug("Can't clone symbol table",ex);
|
999 |
} |
1000 |
} |
1001 |
this.storeName = other.storeName;
|
1002 |
} |
1003 |
|
1004 |
@Override
|
1005 |
public FeatureExtraColumns getExtraColumns() {
|
1006 |
return this.extraColumns; |
1007 |
} |
1008 |
|
1009 |
@Override
|
1010 |
@Deprecated
|
1011 |
public FeatureExtraColumns getExtraColumn() {
|
1012 |
return this.extraColumns; |
1013 |
} |
1014 |
|
1015 |
@Override
|
1016 |
public MutableSymbolTable getSymbolTable() {
|
1017 |
return symbolTable;
|
1018 |
} |
1019 |
|
1020 |
@Override
|
1021 |
public void setSymbolTable(MutableSymbolTable symbolTable) { |
1022 |
this.symbolTable = symbolTable;
|
1023 |
} |
1024 |
|
1025 |
@Override
|
1026 |
public void setVar(String name, Object value) { |
1027 |
if( this.symbolTable==null ) { |
1028 |
this.symbolTable = ExpressionUtils.createSymbolTable();
|
1029 |
} |
1030 |
this.symbolTable.setVar(name, value);
|
1031 |
} |
1032 |
|
1033 |
@Override
|
1034 |
public boolean isUseSubquery() { |
1035 |
return useSubquery;
|
1036 |
} |
1037 |
|
1038 |
@Override
|
1039 |
public void setUseSubquery(boolean useSubquery) { |
1040 |
this.useSubquery = useSubquery;
|
1041 |
} |
1042 |
|
1043 |
} |