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 / FeatureTypeManager.java @ 41925
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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.lang.ref.WeakReference; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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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 org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.feature.AbstractFeatureStoreTransform; |
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import org.gvsig.fmap.dal.feature.EditableFeature; |
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import org.gvsig.fmap.dal.feature.EditableFeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.EditableFeatureType; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.fmap.dal.feature.FeatureStoreTransform; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.feature.impl.expansionadapter.ExpansionAdapter; |
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import org.gvsig.fmap.dal.feature.spi.FeatureStoreProvider.FeatureTypeChanged; |
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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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public class FeatureTypeManager { |
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private ExpansionAdapter expansionAdapter;
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private ArrayList deleted = new ArrayList();// <FeatureID> |
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private int deltaSize = 0; |
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private HashMap added = new HashMap(); |
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private HashMap modifiedFromOriginal = new HashMap(); |
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private FeatureType originalType = null; |
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private boolean first = true; |
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private FeatureTypeManagerFeatureStoreTransforms transforms;
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private FeatureStore store;
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public FeatureTypeManager(FeatureStore store,
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ExpansionAdapter expansionAdapter) {
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this.expansionAdapter = expansionAdapter;
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this.store = store;
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this.transforms = new FeatureTypeManagerFeatureStoreTransforms(); |
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this.transforms.setFeatureStore(store);
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} |
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public void dispose() { |
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this.expansionAdapter.close();
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this.expansionAdapter = null; |
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this.deleted.clear();
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this.deleted = null; |
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this.transforms.clear();
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} |
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public FeatureType getType(String id) throws DataException { |
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Integer intNum = ((Integer) added.get(id)); |
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if (intNum == null) { |
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intNum = ((Integer) modifiedFromOriginal.get(id));
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if (intNum == null) { |
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return null; |
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} |
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} |
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int num = intNum.intValue();
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if (num == -1) { |
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/*
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* This happens for example when we are going back to the
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* original feature type which is not managed by
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* expansionAdapter
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*/
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return null; |
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} |
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FeatureType type = (FeatureType) expansionAdapter.getObject(num); |
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return type;
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} |
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public int update(FeatureType type, FeatureType oldType) { |
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// deleted.add(oldType.getId());
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if (first) {
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originalType = oldType; |
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first = false;
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} |
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int oldNum = -1; |
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int num = expansionAdapter.addObject(type);
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String id = type.getId();
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if (added.containsKey(id)) {
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oldNum = ((Integer) added.get(id)).intValue();
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added.put(id, new Integer(num)); |
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} else {
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if (modifiedFromOriginal.get(id) != null) { |
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oldNum = ((Integer) modifiedFromOriginal.get(id)).intValue();
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} |
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modifiedFromOriginal.put(id, new Integer(num)); |
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} |
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try {
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this.transforms.add(new UpdateFeatureTypeTransform(this.store, |
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oldType, type)); |
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} catch (DataException e) {
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throw new RuntimeException(); // FIXME (pero esto no deberia de |
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// pasar nunca)
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} |
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return oldNum;
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} |
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private class UpdateFeatureTypeTransform extends AbstractFeatureStoreTransform { |
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private FeatureType ftSource;
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private EditableFeatureType ftTarget_editable;
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private FeatureType ftTarget_non_editable;
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private WeakReference wkRefStore; |
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private List ftypes = null; |
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private List attrInSourceToUse; |
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UpdateFeatureTypeTransform(FeatureStore featureStore, |
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FeatureType ftSource, FeatureType ftTarget) {
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this.ftSource = ftSource;
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if (ftTarget instanceof EditableFeatureType) { |
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ftTarget_editable = (EditableFeatureType) ftTarget; |
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ftTarget_non_editable = ftTarget_editable.getNotEditableCopy(); |
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} else {
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ftTarget_non_editable = ftTarget; |
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} |
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this.wkRefStore = new WeakReference(featureStore); |
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this.initializeAttributesToUse();
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} |
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private void initializeAttributesToUse() { |
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attrInSourceToUse = new ArrayList(); |
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Iterator iter = null; |
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if (ftTarget_editable != null) { |
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iter = ftTarget_editable.iterator(); |
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} else {
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iter = ftTarget_non_editable.iterator(); |
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} |
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FeatureAttributeDescriptor tAttr, sAttr; |
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EditableFeatureAttributeDescriptor ead = null;
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while (iter.hasNext()) {
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tAttr = (FeatureAttributeDescriptor) iter.next(); |
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sAttr = this.ftSource.getAttributeDescriptor(tAttr.getName());
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if (sAttr == null) { |
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if (tAttr instanceof EditableFeatureAttributeDescriptor) { |
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ead = (EditableFeatureAttributeDescriptor) tAttr; |
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if (ead.getOriginalName() != null) { |
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sAttr = this.ftSource.getAttributeDescriptor(ead.getOriginalName());
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if (sAttr == null) { |
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continue;
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} |
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} else {
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continue;
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} |
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} else {
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continue;
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} |
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} |
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if (tAttr.getType() != sAttr.getType()) {
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/*
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* Ignore if type is not the same (user removed field
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* and added another with same name but different type)
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*/
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continue;
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} |
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attrInSourceToUse.add(sAttr.getName()); |
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} |
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} |
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public void applyTransform(Feature source, EditableFeature target) |
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throws DataException {
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Iterator iter = target.getType().iterator();
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FeatureAttributeDescriptor tAttr; |
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FeatureAttributeDescriptor tAttr_edi; |
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FeatureAttributeDescriptor srcAtt; |
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/*
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* field name in source feature
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*/
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String s_name;
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/*
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* field name in target feature (the same as in source
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* except if renamed)
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*/
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String t_name;
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EditableFeatureAttributeDescriptor eatd = null;
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while (iter.hasNext()) {
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tAttr = (FeatureAttributeDescriptor) iter.next(); |
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if (ftTarget_editable != null) { |
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/*
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* If target FT is editable, try to get original name
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*/
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t_name = tAttr.getName(); |
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s_name = t_name; |
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tAttr_edi = ftTarget_editable.getAttributeDescriptor(t_name); |
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if (tAttr_edi instanceof EditableFeatureAttributeDescriptor) { |
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eatd = (EditableFeatureAttributeDescriptor) tAttr_edi; |
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s_name = eatd.getOriginalName(); |
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} |
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/*
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* If not found, use normal name
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*/
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if (s_name == null) { |
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s_name = tAttr.getName(); |
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} |
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} else {
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/*
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* If target FT is not editable, use normal name
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*/
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t_name = tAttr.getName(); |
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s_name = t_name; |
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} |
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srcAtt = source.getType().getAttributeDescriptor(s_name); |
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if (srcAtt != null && |
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/*
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* This prevents the case when user has removed field and
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* added new field with same name and different type.
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* In that case, value will be the default value (else below)
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*/
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srcAtt.getType() == tAttr.getType()) {
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target.set(t_name, source.get(s_name)); |
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} else {
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target.set(t_name, tAttr.getDefaultValue()); |
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} |
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} |
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} |
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public FeatureType getDefaultFeatureType() throws DataException { |
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return this.ftTarget_non_editable; |
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} |
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public FeatureStore getFeatureStore() {
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return (FeatureStore) this.wkRefStore.get(); |
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} |
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public List getFeatureTypes() throws DataException { |
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if (this.ftypes == null) { |
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this.ftypes = Arrays |
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.asList(new FeatureType[] { this.ftTarget_non_editable }); |
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} |
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return this.ftypes; |
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} |
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public FeatureType getSourceFeatureTypeFrom(
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FeatureType targetFeatureType) {
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EditableFeatureType orgType = ftSource.getEditable(); |
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Iterator iter = orgType.iterator();
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FeatureAttributeDescriptor attr; |
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EditableFeatureAttributeDescriptor efad = null;
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while (iter.hasNext()) {
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attr = (FeatureAttributeDescriptor) iter.next(); |
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if (!attrInSourceToUse.contains(attr.getName())) {
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if (attr instanceof EditableFeatureAttributeDescriptor) { |
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efad = (EditableFeatureAttributeDescriptor) attr; |
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if (efad.getOriginalName() != null && |
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!attrInSourceToUse.contains(efad.getOriginalName())) {
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iter.remove(); |
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} |
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} else {
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iter.remove(); |
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} |
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} |
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} |
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return orgType.getNotEditableCopy();
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} |
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public void setFeatureStore(FeatureStore featureStore) { |
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this.wkRefStore = new WeakReference(featureStore); |
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} |
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public boolean isTransformsOriginalValues() { |
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return false; |
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} |
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} |
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public void restore(String id) { |
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deleted.remove(id); |
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deltaSize++; |
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} |
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public void restore(String id, int num) { |
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if (added.containsKey(id)) {
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added.put(id, new Integer(num)); |
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} else {
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modifiedFromOriginal.put(id, new Integer(num)); |
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} |
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} |
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public boolean isDeleted(FeatureType type) { |
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return deleted.contains(type.getId());
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} |
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public boolean isDeleted(String id) { |
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return deleted.contains(id);
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} |
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public void clear() { |
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added.clear(); |
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modifiedFromOriginal.clear(); |
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expansionAdapter.close(); |
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deleted.clear();// <FeatureID>
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deltaSize = 0;
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} |
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public boolean hasChanges() { |
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return added.size() > 0 || modifiedFromOriginal.size() > 0 |
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|| deleted.size() > 0;
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} |
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public Iterator newsIterator() { |
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return added.values().iterator();
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} |
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public boolean hasNews() { |
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return !added.isEmpty();
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} |
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public long getDeltaSize() { |
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return deltaSize;
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} |
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public FeatureType getOriginalFeatureType() {
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return originalType;
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} |
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public DefaultFeatureStoreTransforms getTransforms() {
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return this.transforms; |
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} |
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public class FeatureTypeManagerFeatureStoreTransforms extends |
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DefaultFeatureStoreTransforms {
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private FeatureTypeManagerFeatureStoreTransforms() {
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} |
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protected void checkEditingMode() { |
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} |
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protected void notifyChangeToStore() { |
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} |
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public PersistentState getState() throws PersistenceException { |
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// FIXME
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throw new UnsupportedOperationException(); |
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} |
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public void loadState(PersistentState state) |
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throws PersistenceException {
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// FIXME
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throw new UnsupportedOperationException(); |
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} |
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public void loadFromState(PersistentState state) throws PersistenceException { |
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// FIXME
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throw new UnsupportedOperationException(); |
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} |
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public FeatureStoreTransform add(FeatureStoreTransform transform)
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throws DataException {
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if (!(transform instanceof UpdateFeatureTypeTransform)) { |
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// FIXME
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throw new IllegalArgumentException(); |
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} |
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return super.add(transform); |
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} |
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} |
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public class FeatureTypesChangedItem implements FeatureTypeChanged { |
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private FeatureType source;
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private FeatureType target;
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public FeatureTypesChangedItem(FeatureType source, FeatureType target) {
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this.source = source;
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this.target = target;
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} |
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public FeatureType getSource() {
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return source;
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} |
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public FeatureType getTarget() {
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return target;
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} |
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} |
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public Iterator getFeatureTypesChanged() throws DataException { |
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// FIXME this don't work for Store.fType.size() > 1
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List list = new ArrayList(); |
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if (modifiedFromOriginal.size() > 0) { |
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FeatureType src = this.getOriginalFeatureType();
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list.add(new FeatureTypesChangedItem(src, this.store |
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.getFeatureType(src.getId()))); |
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} |
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return list.iterator();
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} |
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} |