gvsig-catalog / org.gvsig.catalog / branches / org.gvsig.catalog-CSW2.0.2 / org.gvsig.catalog / org.gvsig.catalog.extension / src / main / java / org / gvsig / catalog / loaders / GvSigLayerLoader.java @ 62
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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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 2
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package org.gvsig.catalog.loaders; |
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import java.util.Map; |
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import org.gvsig.andami.PluginServices; |
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import org.gvsig.app.project.documents.view.gui.AbstractViewPanel; |
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import org.gvsig.catalog.schemas.Resource; |
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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.DataStoreParameters; |
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import org.gvsig.fmap.dal.exception.InitializeException; |
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import org.gvsig.fmap.dal.exception.ProviderNotRegisteredException; |
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import org.gvsig.fmap.mapcontext.MapContextLocator; |
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import org.gvsig.fmap.mapcontext.MapContextManager; |
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import org.gvsig.fmap.mapcontext.exceptions.LoadLayerException; |
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import org.gvsig.fmap.mapcontext.layers.FLayer; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.extensionpoint.ExtensionPoint; |
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import org.gvsig.tools.extensionpoint.ExtensionPointManager; |
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/**
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* This class has to be inherited by all the classes
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* that have to load a layer in the current view
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* @author Jorge Piera Llodra (piera_jor@gva.es)
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*/
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public abstract class GvSigLayerLoader extends LayerLoader{ |
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private static final MapContextManager MAP_CONTEXT_MANAGER = |
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MapContextLocator.getMapContextManager(); |
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protected static final DataManager DATA_MANAGER = |
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DALLocator.getDataManager(); |
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private static final ExtensionPointManager EXTENSION_POINT_MANAGER = |
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ToolsLocator.getExtensionPointManager(); |
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/**
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* @param resource
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*/
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public GvSigLayerLoader(Resource resource) {
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super(resource);
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} |
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public void loadLayer() throws LayerLoaderException { |
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FLayer layer; |
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try{
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if (hasSpecificLayer()){
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layer = createLayerFromExtensionPoint(); |
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}else{
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layer = createLayerFromParameters(); |
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} |
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} catch (Exception e) { |
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e.printStackTrace(); |
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throw new LayerLoaderException(e.getMessage(), e, getWindowMessage()); |
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} |
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if (layer != null){ |
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addLayerToView(layer); |
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} |
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} |
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private FLayer createLayerFromParameters() throws InitializeException, ProviderNotRegisteredException, LoadLayerException{ |
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DataStoreParameters dataStoreParameters = createDataStoreParameters(); |
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return MAP_CONTEXT_MANAGER.createLayer(getLayerName(), dataStoreParameters);
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} |
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private FLayer createLayerFromExtensionPoint() throws Exception{ |
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DataStoreParameters dataStoreParameters = createDataStoreParameters(); |
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ExtensionPoint extensionPoint = EXTENSION_POINT_MANAGER.get("CatalogLayers");
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return (FLayer)extensionPoint.create(extensionPointName(), new Object[]{dataStoreParameters}); |
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} |
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/**
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* It adds a new layer to the current view
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* @param lyr
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* Layer lo load
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*/
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private void addLayerToView(FLayer lyr) { |
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AbstractViewPanel theView = |
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(AbstractViewPanel) PluginServices.getMDIManager().getActiveWindow(); |
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theView.getMapControl().getMapContext().getLayers().addLayer(lyr); |
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} |
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protected abstract boolean hasSpecificLayer(); |
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protected String extensionPointName(){ |
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return null; |
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} |
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protected abstract DataStoreParameters createDataStoreParameters() throws InitializeException, ProviderNotRegisteredException; |
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protected abstract String getLayerName(); |
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} |