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 @ 45269
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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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|
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import java.util.ArrayList; |
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import java.util.HashMap; |
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import java.util.List; |
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import java.util.Map; |
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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.fmap.dal.expressionevaluator.ExpressionEvaluator; |
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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.DefaultExpressionEvaluator; |
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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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/**
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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 FeatureQueryOrder(); |
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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 extraColumn = new DefaultFeatureExtraColumns(); |
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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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} |
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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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super();
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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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super();
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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.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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super();
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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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super();
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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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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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return (String[])attributeNames.toArray(new String[attributeNames.size()]); |
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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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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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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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return ((ExpressionEvaluator)this.filter).getExpression(); |
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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 DefaultExpressionEvaluator(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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@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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@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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@Override
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public void addFilter(Expression filter) { |
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Evaluator x = new DefaultExpressionEvaluator(filter);
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this.addFilter(x);
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} |
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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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} |
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} |
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addFilterAttributes(evaluator); |
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} |
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@Override
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public void clearFilter() { |
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this.filter = null; |
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} |
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private void addFilterAttributes(Evaluator evaluator){ |
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if (evaluator != null){ |
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EvaluatorFieldsInfo fieldsInfo = evaluator.getFieldsInfo(); |
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if (fieldsInfo == null){ |
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// FieldsInfo is not available in this evaluator
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return;
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} |
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String[] fieldNames = fieldsInfo.getFieldNames(); |
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if (fieldNames== null){ |
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// fieldNames is not available in this evaluator
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return;
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} |
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|
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for (int i=0 ; i<fieldNames.length ; i++){ |
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addAttributeName(fieldNames[i]); |
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} |
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} |
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} |
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|
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@Override
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public FeatureQueryOrder getOrder() {
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return order;
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} |
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|
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@Override
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public void setOrder(FeatureQueryOrder order) { |
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this.order = order;
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} |
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|
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@Override
|
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public boolean hasFilter() { |
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return this.filter != null; |
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} |
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|
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@Override
|
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public boolean hasOrder() { |
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return this.order != null && this.order.size() > 0; |
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} |
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|
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@Override
|
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public Object clone() throws CloneNotSupportedException { |
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DefaultFeatureQuery clone = (DefaultFeatureQuery) super.clone();
|
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|
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// Clone attribute names array
|
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if (attributeNames != null) { |
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clone.attributeNames = new ArrayList(); |
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for (int i=0 ; i<attributeNames.size() ; i++){ |
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clone.attributeNames.add(attributeNames.get(i)); |
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} |
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} |
466 |
|
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// Clone order
|
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if (order != null) { |
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clone.order = (FeatureQueryOrder) order.clone(); |
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} |
471 |
|
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clone.extraColumn = extraColumn.getCopy(); |
473 |
|
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if( this.filter instanceof ExpressionEvaluator ) { |
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Expression exp = ((ExpressionEvaluator)this.filter).getExpression(); |
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clone.filter = new DefaultExpressionEvaluator(exp);
|
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} |
478 |
|
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if (groupByColumns!=null) { |
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clone.groupByColumns = new ArrayList<String>(); |
481 |
for (String value : groupByColumns) { |
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clone.groupByColumns.add(value); |
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} |
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} else {
|
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clone.groupByColumns = null;
|
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} |
487 |
|
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|
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if (aggregateFunctions!=null) { |
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clone.aggregateFunctions = new HashMap<String, String>(); |
491 |
for (String key : aggregateFunctions.keySet()) { |
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clone.aggregateFunctions.put(key, aggregateFunctions.get(key)); |
493 |
} |
494 |
} else {
|
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clone.aggregateFunctions = null;
|
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} |
497 |
|
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|
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return clone;
|
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} |
501 |
|
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@Override
|
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public FeatureQuery getCopy() {
|
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try {
|
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return (FeatureQuery) clone();
|
506 |
} catch (CloneNotSupportedException e) { |
507 |
// TODO Auto-generated catch block
|
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e.printStackTrace(); |
509 |
return null; |
510 |
} |
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// DefaultFeatureQuery aCopy = new DefaultFeatureQuery();
|
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//
|
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// aCopy.featureTypeId = this.featureTypeId;
|
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//
|
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// if (this.attributeNames != null) {
|
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// aCopy.attributeNames = (String[]) Arrays
|
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// .asList(this.attributeNames).toArray(new String[0]);
|
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// }
|
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//
|
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// aCopy.filter = this.filter;
|
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//
|
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// if (this.order != null) {
|
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// aCopy.order = this.order.getCopy();
|
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// }
|
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//
|
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// return aCopy;
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} |
528 |
|
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@Override
|
530 |
public String getFeatureTypeId() { |
531 |
return featureTypeId;
|
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} |
533 |
|
534 |
@Override
|
535 |
public void setFeatureTypeId(String featureTypeId) { |
536 |
this.featureTypeId = featureTypeId;
|
537 |
} |
538 |
|
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@Override
|
540 |
public void saveToState(PersistentState state) throws PersistenceException { |
541 |
// FIXME: falta por terminar de implementar
|
542 |
state.set("queryParameters", this.queryParameters); |
543 |
state.set("featureTypeId", this.featureTypeId); |
544 |
state.set("attributeNames", this.attributeNames); |
545 |
|
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ArrayList<Expression> filterList = new ArrayList<>(); |
547 |
if (this.filter instanceof DefaultExpressionEvaluator) { |
548 |
DefaultExpressionEvaluator filterExpression = (DefaultExpressionEvaluator) this.filter;
|
549 |
filterList.add(filterExpression.getExpression()); |
550 |
} else if (this.filter instanceof AndEvaluator) { |
551 |
AndEvaluator filterAnd = (AndEvaluator) this.filter;
|
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List<Evaluator> evaluators = filterAnd.getEvaluators();
|
553 |
for (Evaluator evaluator : evaluators) {
|
554 |
if (evaluator instanceof DefaultExpressionEvaluator) { |
555 |
DefaultExpressionEvaluator expressionEvaluator = (DefaultExpressionEvaluator) evaluator; |
556 |
filterList.add(expressionEvaluator.getExpression()); |
557 |
} else {
|
558 |
filterList.clear(); |
559 |
LOGGER.warn(StringUtils.join("Filters in this FeatureQuery will not persist:", this.toString())); |
560 |
break;
|
561 |
} |
562 |
} |
563 |
} else {
|
564 |
filterList.clear(); |
565 |
LOGGER.warn(StringUtils.join("Filters in this FeatureQuery will not persist:", this.toString())); |
566 |
} |
567 |
|
568 |
state.set("filter", filterList);
|
569 |
state.set("limit", this.limit); |
570 |
state.set("pageSize", this.pageSize); |
571 |
|
572 |
state.set("order", this.order); |
573 |
state.set("groupByColumns", this.groupByColumns); |
574 |
state.set("aggregateFunctions", this.aggregateFunctions); |
575 |
state.set("extraColumn", this.extraColumn); |
576 |
|
577 |
|
578 |
} |
579 |
|
580 |
|
581 |
@Override
|
582 |
public void loadFromState(PersistentState state) throws PersistenceException { |
583 |
// FIXME: falta por terminar de implementar
|
584 |
this.queryParameters = (Map) state.get("queryParameters"); |
585 |
this.featureTypeId = state.getString("featureTypeId"); |
586 |
this.attributeNames = state.getList("attributeNames"); |
587 |
List<Expression> filterList = state.getList("filter"); |
588 |
String stateFilter = ""; |
589 |
DataManager dataManager = DALLocator.getDataManager(); |
590 |
if (filterList.size() == 0) { |
591 |
this.filter = null; |
592 |
} else if (filterList.size() == 1) { |
593 |
Expression expression = filterList.get(0); |
594 |
Evaluator evaluator; |
595 |
try {
|
596 |
evaluator = dataManager.createFilter(expression); |
597 |
} catch (InitializeException ex) {
|
598 |
LOGGER.warn("Can't create evaluator", ex);
|
599 |
evaluator = null;
|
600 |
} |
601 |
this.filter = evaluator;
|
602 |
} else {
|
603 |
AndEvaluator andEvaluator = null;
|
604 |
for (Expression expression : filterList) { |
605 |
Evaluator evaluator; |
606 |
try {
|
607 |
evaluator = dataManager.createFilter(expression); |
608 |
|
609 |
if (andEvaluator == null) { |
610 |
andEvaluator = new AndEvaluator(evaluator);
|
611 |
} else {
|
612 |
andEvaluator.addEvaluator(evaluator); |
613 |
} |
614 |
} catch (InitializeException ex) {
|
615 |
LOGGER.warn("Can't create AndEvaluator", ex);//TODO evaluator a null |
616 |
break;
|
617 |
} |
618 |
this.filter = evaluator;
|
619 |
|
620 |
} |
621 |
} |
622 |
this.limit = state.getLong("limit"); |
623 |
this.pageSize = state.getLong("pageSize"); |
624 |
|
625 |
|
626 |
this.order = (FeatureQueryOrder) state.get("order"); |
627 |
List asListGroupByColumns = (List) state.getList("groupByColumns"); |
628 |
if (asListGroupByColumns!=null) { |
629 |
this.groupByColumns = new ArrayList<>(asListGroupByColumns); |
630 |
} else {
|
631 |
this.groupByColumns = null; |
632 |
} |
633 |
Map asMapAggregateFunctions = (Map) state.getMap("aggregateFunctions"); |
634 |
if (asMapAggregateFunctions!=null) { |
635 |
this.aggregateFunctions = new HashMap<>(asMapAggregateFunctions); |
636 |
} else {
|
637 |
this.aggregateFunctions = null; |
638 |
} |
639 |
this.extraColumn = (FeatureExtraColumns) state.get("extraColumn"); |
640 |
|
641 |
|
642 |
} |
643 |
|
644 |
/**
|
645 |
* Register the class on PersistenceManager
|
646 |
*
|
647 |
*/
|
648 |
public static void registerPersistent() { |
649 |
DynStruct definition = |
650 |
ToolsLocator.getPersistenceManager() |
651 |
.addDefinition(DefaultFeatureQuery.class, |
652 |
"DefaultFeatureQuery",
|
653 |
"DefaultFeatureQuery Persistent definition",
|
654 |
null,
|
655 |
null);
|
656 |
|
657 |
definition.addDynFieldMap("queryParameters")
|
658 |
.setClassOfItems(Object.class)
|
659 |
.setMandatory(true);
|
660 |
|
661 |
definition.addDynFieldString("featureTypeId").setMandatory(false); |
662 |
|
663 |
definition.addDynFieldList("attributeNames")
|
664 |
.setClassOfItems(String.class)
|
665 |
.setMandatory(false);
|
666 |
|
667 |
definition.addDynFieldList("filter")
|
668 |
.setClassOfItems(Expression.class)
|
669 |
.setMandatory(false);
|
670 |
|
671 |
definition.addDynFieldObject("order")
|
672 |
.setClassOfValue(FeatureQueryOrder.class) |
673 |
.setMandatory(false);
|
674 |
|
675 |
definition.addDynFieldLong("limit").setMandatory(false); |
676 |
|
677 |
definition.addDynFieldLong("pageSize").setMandatory(false); |
678 |
|
679 |
|
680 |
definition.addDynFieldList("groupByColumns")
|
681 |
.setClassOfItems(String.class);
|
682 |
|
683 |
definition.addDynFieldMap("aggregateFunctions")
|
684 |
.setClassOfItems(String.class)
|
685 |
.setClassOfValue(String.class);
|
686 |
|
687 |
definition.addDynFieldObject("extraColumn")
|
688 |
.setClassOfValue(DefaultFeatureExtraColumns.class); |
689 |
|
690 |
|
691 |
} |
692 |
|
693 |
@Override
|
694 |
public long getLimit() { |
695 |
return limit;
|
696 |
} |
697 |
|
698 |
@Override
|
699 |
public long getPageSize() { |
700 |
return pageSize;
|
701 |
} |
702 |
|
703 |
@Override
|
704 |
public void setLimit(long limit) { |
705 |
this.limit = limit;
|
706 |
} |
707 |
|
708 |
@Override
|
709 |
public void setPageSize(long pageSize) { |
710 |
this.pageSize = pageSize;
|
711 |
} |
712 |
|
713 |
@Override
|
714 |
public String[] getConstantsAttributeNames() { |
715 |
return (String[])constantsAttributeNames.toArray(new String[constantsAttributeNames.size()]); |
716 |
} |
717 |
|
718 |
@Override
|
719 |
public void setConstantsAttributeNames(String[] constantsAttributeNames) { |
720 |
this.constantsAttributeNames.clear();
|
721 |
if (constantsAttributeNames != null){ |
722 |
for (int i=0 ; i<constantsAttributeNames.length ; i++){ |
723 |
this.constantsAttributeNames.add(constantsAttributeNames[i]);
|
724 |
} |
725 |
} |
726 |
} |
727 |
|
728 |
@Override
|
729 |
public void addConstantAttributeName(String attributeName) { |
730 |
//If the attribute exists finish the method
|
731 |
for (int i=0 ; i<constantsAttributeNames.size() ; i++){ |
732 |
if (constantsAttributeNames.get(i).equals(attributeName)){
|
733 |
return;
|
734 |
} |
735 |
} |
736 |
this.constantsAttributeNames.add(attributeName);
|
737 |
} |
738 |
|
739 |
@Override
|
740 |
public boolean hasConstantsAttributeNames() { |
741 |
return !this.constantsAttributeNames.isEmpty(); |
742 |
} |
743 |
|
744 |
@Override
|
745 |
public void clearConstantsAttributeNames() { |
746 |
this.constantsAttributeNames = new ArrayList(); |
747 |
} |
748 |
|
749 |
@Override
|
750 |
public boolean isAGroupByColumn(String name) { |
751 |
for (String columnName : groupByColumns) { |
752 |
if( StringUtils.equalsIgnoreCase(name, columnName) ) {
|
753 |
return true; |
754 |
} |
755 |
} |
756 |
return false; |
757 |
} |
758 |
|
759 |
@Override
|
760 |
public List<String> getGroupByColumns() { |
761 |
if( this.groupByColumns == null ) { |
762 |
this.groupByColumns = new ArrayList<>(); |
763 |
} |
764 |
return this.groupByColumns; |
765 |
} |
766 |
|
767 |
@Override
|
768 |
public Map<String, String> getAggregateFunctions() { |
769 |
if( this.aggregateFunctions == null ) { |
770 |
this.aggregateFunctions = new HashMap<>(); |
771 |
} |
772 |
return this.aggregateFunctions; |
773 |
} |
774 |
|
775 |
@Override
|
776 |
public String getAggregate(String name) { |
777 |
String fn = this.getAggregateFunctions().get(name); |
778 |
if( StringUtils.isAlphanumeric(fn) ) {
|
779 |
return fn + "(\""+ name + "\")"; |
780 |
} |
781 |
return fn;
|
782 |
} |
783 |
|
784 |
@Override
|
785 |
public String getAggregate(String tableName, String name) { |
786 |
String fn = this.getAggregateFunctions().get(name); |
787 |
if (!tableName.startsWith("\"")) { |
788 |
tableName = "\""+tableName+"\""; |
789 |
} |
790 |
if( StringUtils.isAlphanumeric(fn) ) {
|
791 |
return fn + "("+tableName+".\""+ name + "\")"; |
792 |
} |
793 |
return fn;
|
794 |
} |
795 |
|
796 |
@Override
|
797 |
public boolean hasAggregateFunctions() { |
798 |
return this.aggregateFunctions != null && !this.aggregateFunctions.isEmpty(); |
799 |
} |
800 |
|
801 |
@Override
|
802 |
public boolean hasGroupByColumns() { |
803 |
return this.groupByColumns != null && !this.groupByColumns.isEmpty(); |
804 |
} |
805 |
|
806 |
@Override
|
807 |
public void copyFrom(FeatureQuery query) { |
808 |
DefaultFeatureQuery other = (DefaultFeatureQuery) query; |
809 |
this.queryParameters = new HashMap(); |
810 |
this.queryParameters.putAll(other.queryParameters);
|
811 |
|
812 |
this.featureTypeId = other.featureTypeId;
|
813 |
|
814 |
this.attributeNames.clear();
|
815 |
this.attributeNames.addAll(other.attributeNames);
|
816 |
|
817 |
this.constantsAttributeNames.clear();
|
818 |
this.constantsAttributeNames.addAll(other.constantsAttributeNames);
|
819 |
|
820 |
this.filter = other.filter;
|
821 |
|
822 |
this.order.copyFrom(other.order);
|
823 |
|
824 |
this.limit = other.limit;
|
825 |
|
826 |
this.pageSize = other.pageSize;
|
827 |
|
828 |
if( this.groupByColumns!=null && other.groupByColumns!=null ) { |
829 |
this.groupByColumns.clear();
|
830 |
this.groupByColumns.addAll(other.groupByColumns);
|
831 |
} else if( other.groupByColumns!=null ) { |
832 |
this.groupByColumns = new ArrayList<>(); |
833 |
this.groupByColumns.addAll(other.groupByColumns);
|
834 |
} else if( this.groupByColumns!=null ) { |
835 |
this.groupByColumns = null; |
836 |
} |
837 |
|
838 |
if( this.aggregateFunctions!=null && other.aggregateFunctions!=null ) { |
839 |
this.aggregateFunctions.clear();
|
840 |
this.aggregateFunctions.putAll(other.aggregateFunctions);
|
841 |
} else if( other.aggregateFunctions!=null ) { |
842 |
this.aggregateFunctions = new HashMap<>(other.aggregateFunctions); |
843 |
} else if( this.aggregateFunctions!=null ) { |
844 |
this.aggregateFunctions=null; |
845 |
} |
846 |
this.extraColumn.copyFrom(other.extraColumn);
|
847 |
} |
848 |
|
849 |
public FeatureExtraColumns getExtraColumn() {
|
850 |
return this.extraColumn; |
851 |
} |
852 |
|
853 |
} |