svn-gvsig-desktop / tags / v1_0_2_Build_898 / extensions / extWMS / src / com / iver / cit / gvsig / fmap / drivers / wms / FMapWMSDriver.java @ 10513
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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 com.iver.cit.gvsig.fmap.drivers.wms; |
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import java.awt.geom.Rectangle2D; |
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import java.io.File; |
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import java.io.IOException; |
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import java.net.ConnectException; |
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import java.net.URL; |
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import java.util.ArrayList; |
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import java.util.Hashtable; |
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import java.util.Iterator; |
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import java.util.TreeMap; |
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import java.util.Vector; |
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import org.gvsig.remoteClient.exceptions.ServerErrorException; |
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import org.gvsig.remoteClient.wms.ICancellable; |
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import org.gvsig.remoteClient.wms.WMSClient; |
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import org.gvsig.remoteClient.wms.WMSDimension; |
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import org.gvsig.remoteClient.wms.WMSLayer; |
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import org.gvsig.remoteClient.wms.WMSStatus; |
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import org.gvsig.remoteClient.wms.WMSStyle; |
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import org.gvsig.remoteClient.wms.WMSProtocolHandler.ServiceInformation; |
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import com.iver.cit.gvsig.fmap.layers.WMSLayerNode; |
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/**
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* Driver WMS.
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*
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* @author Jaume Dominguez Faus
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*/
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public class FMapWMSDriver { |
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private WMSClient client;
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private WMSLayerNode fmapRootLayer;
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private TreeMap layers = new TreeMap(); |
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private URL url; |
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private FMapWMSDriver() {}
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protected FMapWMSDriver(URL url) throws ConnectException, IOException { |
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client = new WMSClient(url.toString());
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} |
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public String[] getLayerNames(){ |
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return client.getLayerNames();
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} |
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public String[] getLayerTitles(){ |
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return client.getLayerTitles();
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} |
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/*
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* (non-Javadoc)
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* @see com.iver.cit.gvsig.fmap.drivers.WMSDriver#getCapabilities(java.net.URL)
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*/
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public void getCapabilities(URL server) |
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throws WMSException {
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// try {
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// client.connect();
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// } catch (Exception e) {
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// throw new WMSException(e);
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// }
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} |
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/*
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* (non-Javadoc)
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* @see com.iver.cit.gvsig.fmap.drivers.WMSDriver#getMap(org.gvsig.remoteClient.wms.WMSStatus)
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*/
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public File getMap(WMSStatus status, ICancellable cancel) throws WMSException { |
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try {
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return client.getMap(status, cancel);
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} catch (org.gvsig.remoteClient.exceptions.WMSException e) {
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throw new WMSException(e.getMessage()); |
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} catch (ServerErrorException e) {
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throw new WMSException("WMS Unexpected server error."+e.getMessage()); |
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} |
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} |
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/**
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* Gets the legend graphic of one layer
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*/
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public File getLegendGraphic(WMSStatus status, String layerName, ICancellable cancel) throws WMSException { |
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try {
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File f = client.getLegendGraphic(status, layerName, cancel);
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return f;
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} catch (org.gvsig.remoteClient.exceptions.WMSException e) {
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throw new WMSException(e.getMessage()); |
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} catch (ServerErrorException e) {
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throw new WMSException("WMS Unexpected server error."+e.getMessage()); |
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} |
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} |
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/**
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* Devuelve WMSClient a partir de su URL.
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*
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* @param url URL.
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*
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* @return WMSClient.
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* @throws IOException
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* @throws ConnectException
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*
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* @throws UnsupportedVersionException
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* @throws IOException
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*/
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/**
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* Establishes the connection.
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* @param override, if true the previous downloaded data will be overridden
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* @return <b>true</b> if the connection was successful, or <b>false</b> if it was no possible
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* to establish the connection for any reason such as version negotiation.
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*/
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public boolean connect(boolean override, ICancellable cancel) { |
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if (override) {
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fmapRootLayer = null;
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layers.clear(); |
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} |
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return client.connect(override, cancel);
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} |
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public boolean connect(ICancellable cancel) { |
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return client.connect(false, cancel); |
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} |
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/**
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* @return the version of this client.
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*/
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public String getVersion() { |
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return client.getVersion();
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} |
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/**
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* @return The title of the service offered by the WMS server.
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*/
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public String getServiceTitle() { |
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return client.getServiceInformation().title;
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} |
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/**
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* Returns a Hash table containing the values for each online resource.
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* Using as key a String with name of the WMS request and the value returned
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* by the hash is another string containing the corresponding Url
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* @return HashTable
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*/
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public Hashtable getOnlineResources() { |
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Hashtable onlineResources = new Hashtable(); |
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ServiceInformation si = client.getServiceInformation(); |
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Iterator it = si.operations.keySet().iterator();
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while (it.hasNext()) {
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String key = (String) it.next(); |
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String val = (String) si.operations.get(key); |
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if (val==null && (si.online_resource!=null || si.online_resource!= "")) |
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val = si.online_resource; |
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if (val!=null) { |
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onlineResources.put(key, val); |
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} |
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} |
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return onlineResources;
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} |
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/**
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* @return <b>Vector</b> containing strings with the formats supported by this server.
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*/
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public Vector getFormats() { |
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return client.getFormats();
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} |
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/**
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* @return <b>Boolean</b> returns if the WMS is queryable (suppports GetFeatureInfo)
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*/
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public boolean isQueryable() { |
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return client.isQueryable();
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} |
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/**
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* @return <b>Boolean</b> returns if the WMS supports getLegendGraphic operation (suppports GetFeatureInfo)
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*/
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public boolean hasLegendGraphic() { |
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return client.hasLegendGraphic();
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} |
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/**
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* @return A tree containing the info of all layers available on this server.
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*/
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public WMSLayerNode getLayersTree() {
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if (fmapRootLayer == null){ |
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WMSLayer clientRoot; |
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if (client.getLayersRoot() == null) { |
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client.connect(false, null); |
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} |
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clientRoot = client.getLayersRoot(); |
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fmapRootLayer = parseTree(clientRoot, null);
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} |
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return fmapRootLayer;
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} |
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/**
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* Parses the client's layer node and translates it to a fmap's layer node
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* @param WMSLayer
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* @return WMSLayerNode
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*/
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private WMSLayerNode parseTree(WMSLayer node, WMSLayerNode parentNode) {
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WMSLayerNode myNode = new WMSLayerNode();
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// Name
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myNode.setName(node.getName()); |
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// Title
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myNode.setTitle(node.getTitle()); |
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// Transparency
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myNode.setTransparency(node.hasTransparency()); |
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// SRS
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myNode.setSrs(node.getAllSrs()); |
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// Queryable
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myNode.setQueryable(node.isQueryable() && client.getServiceInformation().isQueryable()); |
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// Parent layer
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myNode.setParent(parentNode); |
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// Abstract
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myNode.setAbstract(node.getAbstract()); |
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// Fixed Size
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myNode.setFixedSize(node.getfixedWidth(), node.getfixedHeight()); |
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// LatLonBox
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if (node.getLatLonBox()!=null) |
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myNode.setLatLonBox(node.getLatLonBox().toString()); |
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// Keywords
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ArrayList keywords = node.getKeywords();
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for (int i = 0; i < keywords.size(); i++) { |
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myNode.addKeyword((String) keywords.get(i));
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} |
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// Styles
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ArrayList styles = node.getStyles();
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for (int i = 0; i < styles.size(); i++) { |
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WMSStyle style = (WMSStyle) styles.get(i); |
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myNode.addStyle(style.getName(), style.getTitle(), style.getAbstract()); |
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} |
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// Dimensions
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ArrayList dimensions = node.getDimensions();
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for (int i = 0; i < dimensions.size(); i++) { |
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WMSDimension d = (WMSDimension) dimensions.get(i); |
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myNode.addDimension(d.getName(), d.getUnits(), d.getUnitSymbol(), d.getDimensionExpression()); |
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} |
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// Childs
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int children = node.getChildren().size();
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myNode.setChildren(new ArrayList()); |
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for (int i = 0; i < children; i++) { |
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myNode.getChildren().add(parseTree((WMSLayer)node.getChildren().get(i), myNode)); |
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} |
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if (myNode.getName()!=null) |
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layers.put(myNode.getName(), myNode); |
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return myNode;
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} |
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/**
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* @return
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*/
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public String getAbstract() { |
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return client.getServiceInformation().abstr;
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} |
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/**
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* @param layerName
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* @param srs
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* @return
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*/
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public Rectangle2D getLayersExtent(String[] layerName, String srs) { |
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return client.getLayersExtent(layerName, srs);
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} |
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/**
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* @param string
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* @return
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*/
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public WMSLayerNode getLayer(String layerName) { |
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if (getLayers().get(layerName) != null) |
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{ |
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return (WMSLayerNode)layers.get(layerName);
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} |
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return null; |
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} |
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/**
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* @return
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*/
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private TreeMap getLayers() { |
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if (fmapRootLayer == null){ |
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fmapRootLayer = getLayersTree(); |
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} |
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return layers;
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} |
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/**
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* @param wmsStatus
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* @param i
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* @param j
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* @param max_value
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* @return
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* @throws WMSException
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*/
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public String getFeatureInfo(WMSStatus _wmsStatus, int i, int j, int max_value, ICancellable cancellable) throws WMSException { |
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try {
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return client.getFeatureInfo(_wmsStatus, i, j, max_value, cancellable);
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} catch (org.gvsig.remoteClient.exceptions.WMSException e) {
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throw new WMSException(); |
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} |
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} |
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public String getHost(){ |
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return client.getHost();
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} |
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} |