| gvSIG desktop 1

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

/* CVS MESSAGES:

 *

 * $Id$

 * $Log$

 * Revision 1.1  2006-05-24 16:37:34  jaume

 * *** empty log message ***

 *

 *

 */

package org.gvsig.remoteclient.wms;

/**

 * <p>When a task is accessing to remote data, takes an indeterminate time, and occasionally gets locked. That's

 * the reason a task should support to be cancelable.</p>

 * <p><code>ICancellable</code> interface is designed for getting information about the cancellation of a

 * task of downloading remote information.</p>

 */

public interface ICancellable {

	/**

	 * <p>Returns <code>true</code> if a download or a group of downloads tasks has been canceled.</p>

	 * 

	 * @return <code>true</code> if a download or a group of downloads tasks has been canceled, otherwise <code>false</code>

	 */

	public boolean isCanceled();

	/**

	 * <p>Used to cancel only a group of downloads tasks with the same identifier.</p>

	 * 

	 * @return the identifier

	 */

	public Object getID();

}

package org.gvsig.remoteclient.wms;

import java.io.IOException;

import org.gvsig.remoteclient.utils.CapabilitiesTags;

import org.kxml2.io.KXmlParser;

import org.xmlpull.v1.XmlPullParserException;

public class WMSExtent {

    private String name; 

    /**

     * Indicates that the server will round off inexact dimension values

     * to the nearest valid value, or (if it is null or zero) it will not.

     */

    private String nearestValue; 

    /**

     * Indicates that temporal data are normally kept current and that the

     * request parameter TIME <b>may</b> include the keyword 'current' 

     * instead of an ending value. 

     */

    private String current;

    /**

     * cotains the expression for this dimension's extent.

     */

    private String extentExpression;

    private String extDefaultValue;

    public String getName() {        

        return name;

    } 

    /**

     * Tells that the temporal data are normally kept current and that

     * the request parameter TIME may include the keyword 'current'

     * instead of an ending value.

     *

     * @return <b>true</b> if the server does keep the data, <b>false</b> else.

     */

    public boolean allowsCurrentTime() {

        return (current!=null && !current.equals("0"));

    }

    /**

     * Gets the value that would be used along this dimension if a Web

     * request omits a value for the dimension.

     * 

     * @return Returns the defaultValue.

     */

    public String getDefaultValue() {

        return extDefaultValue;

    }

    /**

     * Returns the extent expression as it was written in the Capabilities 

     * document.

     * @return String

     */

    public String getExtentExpression() {

        return extentExpression;

    }

    /**

     * @return Returns the nearestValues.

     */

    public boolean allowsNearestValue() {

        return (nearestValue!=null && !nearestValue.equals("0"));

    }	 

	   /**

	 * Parses the EXTENT tag in the WMS capabilities, filling the Extend fills of the

	 * WMSDimension object and loading the data into memory to be easily accesed.

	 */

	public void parse(KXmlParser parser) throws IOException, XmlPullParserException{

	    parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.EXTENT);

	    name			 = parser.getAttributeValue("", CapabilitiesTags.DIMENSION_NAME);

	    extDefaultValue  = parser.getAttributeValue("", CapabilitiesTags.DEFAULT);

	    nearestValue    = parser.getAttributeValue("", CapabilitiesTags.EXTENT_NEAREST_VALUE);

	    current          = parser.getAttributeValue("", CapabilitiesTags.EXTENT_CURRENT);

	    extentExpression = parser.nextText();

	}	

}

package org.gvsig.remoteclient.wms;

import java.io.IOException;

import java.util.ArrayList;

import java.util.Hashtable;

import java.util.TreeMap;

import java.util.Vector;

import org.gvsig.remoteclient.utils.BoundaryBox;

import org.gvsig.remoteclient.utils.CapabilitiesTags;

import org.kxml2.io.KXmlParser;

import org.xmlpull.v1.XmlPullParserException;

/**

 * <p>Abstract class that defines an WMSLayer.</p>

 *

 */

public abstract class WMSLayer implements org.gvsig.remoteclient.ILayer {

    protected ArrayList children;

    protected WMSLayer parent;

    /**

     * <p>Layer Abstract field in the capabilities document </p>

     */

    private String layerAbstract;

    /**

     * <p>Themes provided by the WMS for the layer</p>

     */

    public ArrayList styles = new ArrayList();

    /**

     * <p>Layer name</p>

     */

    private String name;

    /**

     * <p>Layer title</p>

     */

    private String title;

    private ArrayList keywordList = new ArrayList();

    /**

     * <p>Layer srs.</p>

     */

    protected Vector srs = new Vector();

    /**

     * <p>extents for each srs the layer can be reproyected to</p>

     */

    private Hashtable bBoxes  = new Hashtable();

    /**

     * <p>extents that defines the bbox for the LatLon projection

     * It can be included in the bBoxes vector as well, because it is the most used, we keep it separeted too, according

     *  with the OGC WMSCapabilities specifications...

     */

    private org.gvsig.remoteclient.utils.BoundaryBox latLonBbox;

    /**

     * <p>min scale for the layer to be visible</p>

     */

    private double scaleMin;

    /**

     * <p>max scale for the layer to be visible</p>

     */

    private double scaleMax;

    /**

     * <p>Dimensions defined for the layer in the capabilities doc</p>

     */

    protected java.util.ArrayList dimensions = new ArrayList();

    /**

     * Tells if this layer accepts getFeatureInfo requests.

     */

    private boolean queryable = false;

    /**

     * Tells if this layer is opaque.

     */

    private boolean opaque = false;

    /**

     * when set to true, noSubsets indicates that the server is not able to make a map

     * of a geographic area other than the layer's bounding box.

     */

    private boolean m_noSubSets = false;

    /**

     * when present and non-zero fixedWidth and fixedHeight indicate that the server is not

     * able to produce a map of the layer at a width and height different from the fixed sizes indicated.

     */

    private int fixedWidth = 0;

    private int fixedHeight = 0;

    /**

     * Tells if this layer can be served with transparency.

     */

    private boolean transparency;

    /**

     * <p>Parses the LAYER tag in the WMS capabilities, filling the WMSLayer object

     * loading the data in memory to be easily accesed</p>

     *

     */

    public abstract void parse(KXmlParser parser, TreeMap layerTreeMap)

    throws IOException, XmlPullParserException;

    //public abstract ArrayList getAllDimensions();

    /**

     * add a new keyword to the keywordList.

     * @param key

     */

    protected void addkeyword(String key)

    {

    	keywordList.add(key);

    }

    public ArrayList getKeywords()

    {

    	return keywordList;

    }

    /**

     * <p>Adds a style to the styles vector</p>

     * @param _style

     */

    public void addStyle(org.gvsig.remoteclient.wms.WMSStyle _style) {

        styles.add( _style );    }

   /**

     * <p>Gets the style vector</p>

     * @return

     */

    public ArrayList getStyles() {

    	ArrayList list = new ArrayList();

    	if (styles != null)

    		list.addAll(styles);

    	if (this.getParent()!= null)

    	{

    		//return getAllStyles(this);

    		if(this.getParent().getStyles() != null)

    			list.addAll(this.getParent().getStyles());

    	}

        return list;

    }

    public ArrayList getAllStyles(WMSLayer layer)

    {

    	if (layer.getParent()!= null)

    	{

    		ArrayList list = getAllStyles(layer.getParent());

    		for(int i = 0; i < this.styles.size(); i++)

    		{

    			list.add(styles.get(i));

    		}

    		return list;

    	}

    	else

    	{

    		return styles;

    	}

    }

    /**

     * <p>Adds a bbox to the Bboxes vector</p>

     * @param bbox

     */

    public void addBBox(BoundaryBox bbox) {

        bBoxes.put(bbox.getSrs(), bbox);

    }

    /**

     * <p>returns the bbox with that id in the Bboxes vector</p>

     * @param id

     */

    public BoundaryBox getBbox(String id) {

    	if ((id.compareToIgnoreCase( CapabilitiesTags.EPSG_4326 )==0)

    		||(id.compareToIgnoreCase( CapabilitiesTags.CRS_84)==0))

    	{

    		if (latLonBbox != null)

    		return (BoundaryBox)latLonBbox;

    	}

        BoundaryBox b = (BoundaryBox) bBoxes.get(id);

        if (b == null && parent!=null)

            return parent.getBbox(id);

        return (BoundaryBox)bBoxes.get(id);

    }

    /**

     * <p>Gets the bBoxes vector</p>

     * @return

     */

    public Hashtable getBboxes() {

        return bBoxes;

    }

    //Methods to manipulate the box that defines the layer extent in LatLon SRS.

    public BoundaryBox getLatLonBox()

    {

        return latLonBbox;

    }

    public void setLatLonBox(BoundaryBox box)

    {

        latLonBbox = box;

    }

    /**

     * <p>adds a new srs to the srs vector</p>

     */

    public void addSrs(String srs)

    {

    	if (!this.srs.contains(srs))

    		this.srs.add(srs);

    }

    public Vector getAllSrs()

    {

        Vector mySRSs = (Vector) this.srs.clone();

        if (parent!=null)

            mySRSs.addAll(parent.getAllSrs());

        return mySRSs;

//    	if (this.getParent()!= null)

//    	{

//    		Vector list = this.getParent().getAllSrs();

//    		for(int i = 0; i < this.srs.size(); i++)

//    		{

//    			list.add(srs.get(i));

//    		}

//    		return list;

//    	}

//    	else

//    	{

//    		return srs;

//    	}

    }

    /**

     * <p>gets the maximum scale for this layer</p>

     * @return

     */

    public double getScaleMax() {

        return scaleMax;

    }

    /**

     * <p>gets the minimum scale for this layer</p>

     * @return

     */

    public double getScaleMin() {

        return scaleMin;

    }

    /**

     * <p>sets the minimum scale for this layer to be visible.</p>

     *

     * @param scale

     */

    public void setScaleMin(double scale) {

        scaleMin = scale;

    }

    /**

     * <p>sets the maximum scale for this layer to be visible</p>

     * @param scale

     */

    public void setScaleMax(double scale) {

        scaleMax = scale;

    }

    /**

     * <p> gets the dimension vector defined in this layer</p>

     * @return

     */

    public abstract ArrayList getDimensions();

//    public ArrayList getDimensions() {

//        return dimensions;

//    }

    public WMSDimension getDimension(String name)

    {

    	for(int i = 0; i < dimensions.size(); i++ ){

    		if(((WMSDimension)dimensions.get(i)).getName().compareTo(name)==0)

    		{

    			return (WMSDimension)dimensions.get(i);

    		}

    	}

    	return null;

    }

//    /**

//     * <p>Sets the dimension vector defined for this layer</p>

//     * @param v

//     */

//    public void setDimensions(ArrayList v) {

//        dimensions = (ArrayList)v.clone();

//    }

    /**

     * <p>Adds a dimension to the dimension vector </p>

     * @param dimension

     */

    public void addDimension(org.gvsig.remoteclient.wms.WMSDimension dimension) {

        dimensions.add(dimension);

    }

    /**

     * <p>Gets layer name</p>

     * @return

     */

    public String getName() {

        return this.name;

    }

    /**

     * <p>Sets layer name</p>

     * @param _name

     */

    public void setName(String name) {

        this.name = name;

    }

    /**

     * <p>Gets layer title</p>

     * @return

     */

    public String getTitle() {

        return title;

    }

    /**

     * <p>Sets the layer title</p>

     * @param _title

     */

    public void setTitle(String title) {

        this.title = title;

    }

    /**

     * <p>Gets the layer abstract</p>

     * @return

     */

    public String getAbstract() {

        return layerAbstract;

    }

    /**

     * <p>Sets the layer abstract</p>

     * @param m_abstract

     */

    public void setAbstract(String _abstract) {

        layerAbstract = _abstract;

    }

    public ArrayList getChildren() {

        return children;

    }

    public void setChildren(ArrayList children) {

        this.children = children;

    }

    public WMSLayer getParent() {

        return parent;

    }

    public void setParent(WMSLayer parent) {

        this.parent = parent;

    }

    public String toString(){

        return this.getTitle();

    }

    /**

     * Tells if this layer accepts getFeatureInfo requests.

     */

    public boolean isQueryable() {

        return queryable;

    }

    /**

     * @param queryable The queryable to set.

     */

    public void setQueryable(boolean queryable) {

        this.queryable = queryable;

    }

    /**

     * Tells if this layer is opaque.

     */

    public boolean isOpaque() {

        return opaque;

    }

    /**

     * @param opaque.

     */

    public void setOpaque(boolean opaque) {

        this.opaque = opaque;

    }

    /**

     * Tells if this layer is subsettable

     */

    public boolean noSubSets() {

        return this.m_noSubSets;

    }

    /**

     * @param set layer nosubsets attribute.

     */

    public void setNoSubSets(boolean _noSubSets) {

        m_noSubSets = _noSubSets;

    }

    public void setfixedWidth(int w) {

        fixedWidth = w;

    }

    public int getfixedWidth() {

        return fixedWidth;

    }

    public void setfixedHeight(int h) {

        fixedHeight = h;

    }

    public int getfixedHeight() {

        return fixedHeight;

    }

    /**

     * @return <b>true</b> if this layer can be served with transparency, otherwise <b>false</b>

     */

    public boolean hasTransparency() {

        return transparency;

    }

    //Methods to parse tags that are common to several versions of WMS.

    //In case there is a version which has different implemantation of one of this tags

    // the subclass can overwrite this method

    /**

     * Parses the keywordlist from the capabilities and fills this list in the WMSLayer.

     * @param parser

     */

    protected void parseKeywordList(KXmlParser parser)  throws IOException, XmlPullParserException

    {

    	int currentTag;

    	boolean end = false;

    	String value;

    	parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.KEYWORDLIST);

    	currentTag = parser.nextTag();

        while (!end)

    	{

			 switch(currentTag)

			 {

				case KXmlParser.START_TAG:

					if (parser.getName().compareTo(CapabilitiesTags.KEYWORD)==0)

					{

						value = parser.nextText();

						if ((value != null) && (value.length() > 0 ))

							addkeyword(value);

					}

					break;

				case KXmlParser.END_TAG:

					if (parser.getName().compareTo(CapabilitiesTags.KEYWORDLIST) == 0)

						end = true;

					break;

				case KXmlParser.TEXT:

					break;

			 }

			 if (!end)

			 {

				 currentTag = parser.next();

			 }

    	}

    	parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.KEYWORDLIST);

    }

    /**

     * Reads and parses the layer attributes

     * Maybe this method should be moved to the WMSLayer. Until now the attributes are teh same for all versions.

     * @param parser

     */

    protected void readLayerAttributes(KXmlParser parser)

    {

    	String value = new String();

        //First of all set whether the layer is Queryable reading the attribute.

        value = parser.getAttributeValue("", CapabilitiesTags.QUERYABLE);

        if (value != null)

        {

            if (value.compareTo("0")==0)

                setQueryable(false);

            else

                setQueryable(true);

        }

        value = parser.getAttributeValue("", CapabilitiesTags.OPAQUE);

        if (value != null)

        {

            if (value.compareTo("0")==0)

                setOpaque(false);

            else

                setOpaque(true);

        }

        value = parser.getAttributeValue("", CapabilitiesTags.NOSUBSETS);

        if (value != null)

        {

            if (value.compareTo("0")==0)

                setNoSubSets(false);

            else

            	setNoSubSets(true);

        }

        value = parser.getAttributeValue("", CapabilitiesTags.FIXEDWIDTH);

        if (value != null)

        {

        	setfixedWidth(Integer.parseInt(value));

        }

        value = parser.getAttributeValue("", CapabilitiesTags.FIXEDHEIGHT);

        if (value != null)

        {

        	setfixedHeight(Integer.parseInt(value));

        }

    }

    /**

     * <p>Inner class describing the MetadataURL tag in OGC specifications in WMS</p>

     *

     */

    protected class MetadataURL

    {

    	public MetadataURL()

    	{

    		type = new String();

    		format = new String();

    		onlineResource_xlink = new String();

    		onlineResource_type = new String();

    		onlineResource_href = new String();

    	}

        public String type;

        public String format;

        public String onlineResource_xlink;

        public String onlineResource_type;

        public String onlineResource_href;

     }

    /**

     * <p>Inner class describing the DataURL tag in OGC specifications in WMS</p>

     *

     */

    protected class DataURL

    {

    	public DataURL()

    	{

    		type = new String();

    		format = new String();

    		onlineResource_xlink = new String();

    		onlineResource_type = new String();

    		onlineResource_href = new String();

    	}

        public String type;

        public String format;

        public String onlineResource_xlink;

        public String onlineResource_type;

        public String onlineResource_href;

     }

}

package org.gvsig.remoteclient.wms;

import java.awt.geom.Rectangle2D;

import java.io.File;

import java.io.IOException;

import java.net.ConnectException;

import java.util.TreeMap;

import java.util.Vector;

import org.gvsig.remoteclient.exceptions.ServerErrorException;

import org.gvsig.remoteclient.exceptions.WMSException;

import org.gvsig.remoteclient.utils.BoundaryBox;

/**

 * <p>Represents the class the with the necessary logic to connect to a OGCWMS and interpretate the data </p>

 * 

 */

public class WMSClient extends org.gvsig.remoteclient.RasterClient {

    private org.gvsig.remoteclient.wms.WMSProtocolHandler handler;

//    private TreeMap layers = new TreeMap();

//    private WMSLayer rootLayer;

    /**

     * @return Returns the rootLayer.

     */

    public WMSLayer getRootLayer() {

        return handler.rootLayer;

    }

    /**

     * Constructor.

     * the parameter host, indicates the WMS host to connect.

     * */

    public WMSClient(String host) throws ConnectException, IOException 

    {

    	setHost(host);

        try {        	

        	handler = WMSProtocolHandlerFactory.negotiate(host);

        	handler.setHost(host);        

        } catch(ConnectException conE) {

        	conE.printStackTrace();

        	throw conE; 

        } catch(IOException ioE) {

        	ioE.printStackTrace();

        	throw ioE; 

        } catch(Exception e) {

        	e.printStackTrace();       	

        }

    }

    public String getVersion()

    {

        return handler.getVersion();

    }

    /**

     * <p>One of the three interfaces that OGC WMS defines. Request a map.</p> 

     * @throws ServerErrorException 

     */

    public File getMap(WMSStatus status, ICancellable cancel) throws WMSException, ServerErrorException{   

        return handler.getMap(status, cancel);

    } 

    /**

     * <p>One of the three interfaces defined by OGC WMS, it gets the service capabilities</p>

     * @param override, if true the previous downloaded data will be overridden

     */

    public void getCapabilities(WMSStatus status, boolean override, ICancellable cancel) {        

        handler.getCapabilities(status, override, cancel);

    } 

    /**

     * <p>One of the three interfaces defined by the OGC WMS, it gets the information about a feature requested</p>

     * @return 

     */

    public String getFeatureInfo(WMSStatus status, int x, int y, int featureCount, ICancellable cancel) throws WMSException{        

        return handler.getFeatureInfo(status, x, y, featureCount, cancel);

    } 

    /**

     * <p>One of the three interfaces defined by the OGC WMS, it gets legend of a layer</p>

     * @return 

     */

    public File getLegendGraphic(WMSStatus status, String layerName, ICancellable cancel) throws WMSException, ServerErrorException{        

        return handler.getLegendGraphic(status, layerName, cancel);

    } 

    /**

     * <p> Reads from the WMS Capabilities, the layers available in the service</p>

     * @return a TreeMap with the available layers in the WMS 

     */

    public TreeMap getLayers() {        

        return handler.layers;

    } 

    /**

     * <p>Reads from the WMS Capabilities the number if layers available in the service</p>

     * @return, number of layers available

     */

    public int getNumberOfLayers() {        

        if (handler.layers != null)

        {

            return handler.layers.size();

        }

        return 0;

    } 

    /**

     * <p>Gets the WMSLayer with this name</p>

     * 

     * @param _name, layer name

     * @return the layer with this name

     */

    public WMSLayer getLayer(String _name) {        

        if (handler.layers.get(_name) != null)

        {

            return (WMSLayer)handler.layers.get(_name);

        }

        return null;

    } 

    public String[] getLayerNames()

    {    	

        WMSLayer[] lyrs;

        lyrs = (WMSLayer[])handler.layers.values().toArray(new WMSLayer[0]);

        String[] names = new String[lyrs.length];

        for(int i = 0; i<lyrs.length; i++)

        {

            names[i] = ((WMSLayer)lyrs[i]).getName();

        }

        return names;

    }

    public String[] getLayerTitles()

    {    	

        WMSLayer[] lyrs;

        lyrs = (WMSLayer[])handler.layers.values().toArray(new WMSLayer[0]);

        String[] titles = new String[lyrs.length];

        for(int i = 0; i<lyrs.length; i++)

        {

            titles[i] = ((WMSLayer)lyrs[i]).getTitle();

        }

        return titles;

    }

    /**

     * <p>Gets the image formats available in the Service to retrieve the maps</p>

     * @return a vector with all the available formats

     */

    public Vector getFormats() {        

        return ((WMSServiceInformation)handler.getServiceInformation()).formats;         

    } 

    public boolean isQueryable()

    {

    	return ((WMSServiceInformation)handler.getServiceInformation()).isQueryable();  

    }

    public boolean hasLegendGraphic()

    {

    	return ((WMSServiceInformation)handler.getServiceInformation()).hasLegendGraphic();  

    }

    public void close() {        

        // your code here

    } 

    /**

     * Returns the max extent that envolves the requested layers

     * */

    public Rectangle2D getLayersExtent(String[]layerNames, String srs)

    {

        try

        {

        	if (layerNames == null) return null;

            BoundaryBox bbox;

            WMSLayer layer = getLayer(layerNames[0]);

            bbox = layer.getBbox(srs);

            if (bbox == null) return null;

            double xmin = bbox.getXmin();

            double xmax = bbox.getXmax();

            double ymin = bbox.getYmin();

            double ymax = bbox.getYmax();

            for(int i=1; i<layerNames.length; i++)

            {

                layer = getLayer(layerNames[i]);

                bbox = layer.getBbox(srs);

                if (bbox == null) return null;

                if (bbox.getXmin() < xmin)

                {

                    xmin = bbox.getXmin();

                }

                if (bbox.getYmin() < ymin)

                {

                    ymin = bbox.getYmin();

                }

                if (bbox.getXmax() > xmax)

                {

                    xmax = bbox.getXmax();

                }

                if (bbox.getYmax() > ymax)

                {

                    ymax = bbox.getYmax();

                }

            }	

            Rectangle2D extent = new Rectangle2D.Double(xmin,ymin,Math.abs(xmax-xmin),Math.abs(ymax-ymin));

            return extent;

        }

        catch(Exception e)

        {

            e.printStackTrace();

            return null;

        }

    }

    /**

     * Gets the Service information included in the Capabilities

     * */    

    public WMSServiceInformation getServiceInformation()

    {

        return ((WMSServiceInformation)handler.getServiceInformation());

    }

    /**

     * <p>Checks the connection to de remote WMS and requests its capabilities.</p>

     * @param override, if true the previous downloaded data will be overridden

     */

    public boolean connect(boolean override, ICancellable cancel) 

    {

        try {            

            if (handler == null)

            {

                if (getHost().trim().length() > 0)

                {					

                    //TODO: Implement correctly the negotiate algorithm

                    handler = WMSProtocolHandlerFactory.negotiate(getHost());

                    //handler = new WMSProtocolHandler1_1_1();

                    handler.setHost(getHost());

                }

                else

                {

                    //must to specify host first!!!!

                    return false;

                }                

            }

            getCapabilities(null, override, cancel);

            return true;

        } catch (Exception e) {

            e.printStackTrace();

            return false;

        }

    }

    //TODO Check this out: Always 1 layer at first level...

    public WMSLayer getLayersRoot() {

        return handler.rootLayer;

    }

	public boolean connect(ICancellable cancel) {

		return connect(false, cancel);

	}

}

/* gvSIG. Geographic Information System of the Valencian Government

*

* Copyright (C) 2007-2008 Infrastructures and Transports Department

* of the Valencian Government (CIT)

* 

* This program is free software; you can redistribute it and/or

* modify it under the terms of the GNU General Public License

* as published by the Free Software Foundation; either version 2

* of the License, or (at your option) any later version.

* 

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

* GNU General Public License for more details.

* 

* You should have received a copy of the GNU General Public License

* along with this program; if not, write to the Free Software

* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 

* MA  02110-1301, USA.

* 

*/

/*

* AUTHORS (In addition to CIT):

* 2009 Iver T.I.  {{Task}}

*/

package org.gvsig.remoteclient.wms.request;

import org.gvsig.remoteclient.utils.CapabilitiesTags;

import org.gvsig.remoteclient.wms.WMSProtocolHandler;

import org.gvsig.remoteclient.wms.WMSStatus;

/**

 * @author <a href="mailto:jpiera@gvsig.org">Jorge Piera</a>

 */

public abstract class WMSGetFeatureInfoRequest extends WMSRequest {

	protected int x;

	protected int y;

	public WMSGetFeatureInfoRequest(WMSStatus status, WMSProtocolHandler protocolHandler, int x, int y) {

		super(status, protocolHandler);	

		this.x = x;

		this.y = y;

	}

	/*

	 * (non-Javadoc)

	 * @see org.gvsig.remoteClient.wfs.requests.WFSRequest#getHttpPostRequest(java.lang.String)

	 */

	protected String getHttpPostRequest(String onlineResource) {

		// TODO Auto-generated method stub

		return null;

	}

	/*

	 * (non-Javadoc)

	 * @see org.gvsig.remoteClient.wfs.requests.WFSRequest#getOperationCode()

	 */

	protected String getOperationName() {

		return CapabilitiesTags.GETFEATUREINFO;

	}

	/*

	 * (non-Javadoc)

	 * @see org.gvsig.remoteClient.wfs.requests.WFSRequest#getTempFilePrefix()

	 */

	protected String getTempFilePrefix() {

		return "wms_getFeatureInfo.xml";

	}

}

/* gvSIG. Geographic Information System of the Valencian Government

*

* Copyright (C) 2007-2008 Infrastructures and Transports Department

* of the Valencian Government (CIT)

* 

* This program is free software; you can redistribute it and/or

* modify it under the terms of the GNU General Public License

* as published by the Free Software Foundation; either version 2

* of the License, or (at your option) any later version.

* 

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

* GNU General Public License for more details.

* 

* You should have received a copy of the GNU General Public License

* along with this program; if not, write to the Free Software

* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 

* MA  02110-1301, USA.

* 

*/

/*

* AUTHORS (In addition to CIT):

* 2009 Iver T.I.  {{Task}}

*/

package org.gvsig.remoteclient.wms.request;

import org.gvsig.remoteclient.utils.CapabilitiesTags;

import org.gvsig.remoteclient.wms.WMSProtocolHandler;

import org.gvsig.remoteclient.wms.WMSStatus;

/**

 * @author <a href="mailto:jpiera@gvsig.org">Jorge Piera</a>

 */

public abstract class WMSGetLegendGraphicRequest extends WMSRequest {

	protected String layerName = null;	

	public WMSGetLegendGraphicRequest(WMSStatus status, WMSProtocolHandler protocolHandler, String layerName) {

		super(status, protocolHandler);	

		this.layerName = layerName;

	}

	/*

	 * (non-Javadoc)

	 * @see org.gvsig.remoteClient.wfs.requests.WFSRequest#getHttpPostRequest(java.lang.String)

	 */

	protected String getHttpPostRequest(String onlineResource) {

		// TODO Auto-generated method stub

		return null;

	}

	/*

	 * (non-Javadoc)

	 * @see org.gvsig.remoteClient.wfs.requests.WFSRequest#getOperationCode()

	 */

	protected String getOperationName() {

		return CapabilitiesTags.GETLEGENDGRAPHIC;

	}

	/*

	 * (non-Javadoc)

	 * @see org.gvsig.remoteClient.wfs.requests.WFSRequest#getTempFilePrefix()

	 */

	protected String getTempFilePrefix() {

		return "wms_getLegendGraphic.xml";

	}

}

/* gvSIG. Geographic Information System of the Valencian Government

*

* Copyright (C) 2007-2008 Infrastructures and Transports Department

* of the Valencian Government (CIT)

* 

* This program is free software; you can redistribute it and/or

* modify it under the terms of the GNU General Public License

* as published by the Free Software Foundation; either version 2

* of the License, or (at your option) any later version.

* 

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

* GNU General Public License for more details.

* 

* You should have received a copy of the GNU General Public License

* along with this program; if not, write to the Free Software

* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 

* MA  02110-1301, USA.

* 

*/

/*

* AUTHORS (In addition to CIT):

* 2009 Iver T.I.  {{Task}}

*/

package org.gvsig.remoteclient.wms.request;

import org.gvsig.remoteclient.utils.CapabilitiesTags;

import org.gvsig.remoteclient.wms.WMSProtocolHandler;

import org.gvsig.remoteclient.wms.WMSStatus;

/**

 * @author <a href="mailto:jpiera@gvsig.org">Jorge Piera</a>

 */

public abstract class WMSGetMapRequest extends WMSRequest {

	public WMSGetMapRequest(WMSStatus status, WMSProtocolHandler protocolHandler) {

		super(status, protocolHandler);		

	}

	/*

	 * (non-Javadoc)

	 * @see org.gvsig.remoteClient.wfs.requests.WFSRequest#getHttpPostRequest(java.lang.String)

	 */

	protected String getHttpPostRequest(String onlineResource) {

		// TODO Auto-generated method stub

		return null;

	}

	/*

	 * (non-Javadoc)

	 * @see org.gvsig.remoteClient.wfs.requests.WFSRequest#getOperationCode()

	 */

	protected String getOperationName() {

		return CapabilitiesTags.GETMAP;

	}

	/*

	 * (non-Javadoc)

	 * @see org.gvsig.remoteClient.wfs.requests.WFSRequest#getTempFilePrefix()

	 */

	protected String getTempFilePrefix() {

		return "wms_getMap.xml";

	}

}

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 * 

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 * 

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 * 

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 

 * MA  02110-1301, USA.

 * 

 */

/*

 * AUTHORS (In addition to CIT):

 * 2009 Iver T.I.  {{Task}}

 */

/**

 * This class sends a WMS request and returns the

 * reply in a local File. It tries if the server

 * supports both HTTP Get and Post requests.

 * @author Jorge Piera LLodr? (jorge.piera@iver.es)

 */

package org.gvsig.remoteclient.wms.request;

import java.util.Vector;

import org.gvsig.remoteclient.ogc.request.OGCRequest;

import org.gvsig.remoteclient.utils.Utilities;

import org.gvsig.remoteclient.wms.WMSProtocolHandler;

import org.gvsig.remoteclient.wms.WMSStatus;

/**

 * @author <a href="mailto:jpiera@gvsig.org">Jorge Piera</a>

 */

public abstract class WMSRequest extends OGCRequest{

	protected WMSStatus status = null;

	public WMSRequest(WMSStatus status,

			WMSProtocolHandler protocolHandler) {

		super(status, protocolHandler);

		this.status = status;

	}

	/*

	 * (non-Javadoc)

	 * @see org.gvsig.remoteClient.wfs.requests.WFSRequest#getSchemaLocation()

	 */

	protected String getSchemaLocation() {

		return null;

	}

	/**

     * Gets the part of the OGC request that share GetMap and GetFeatureInfo

     * @return String request

     */

    protected String getPartialQuery(WMSStatus status)

    {

        StringBuffer req = new StringBuffer();

        req.append("LAYERS=" + Utilities.Vector2CS(status.getLayerNames()))

           .append("&SRS=" + status.getSrs())

           .append("&BBOX=" + status.getExtent().getMinX()+ "," )

           .append(status.getExtent().getMinY()+ ",")

           .append(status.getExtent().getMaxX()+ ",")

           .append(status.getExtent().getMaxY())

           .append("&WIDTH=" + status.getWidth())

           .append("&HEIGHT=" + status.getHeight())

           .append("&FORMAT=" + status.getFormat())

           .append("&STYLES=");

        Vector v = status.getStyles();

        if (v!=null && v.size()>0)

        	req.append(Utilities.Vector2CS(v));

        v = status.getDimensions();

        if (v!=null && v.size()>0)

            req.append("&" + Utilities.Vector2URLParamString(v));

        if (status.getTransparency()) {

            req.append("&TRANSPARENT=TRUE");

        }

        return req.toString();

    }

}

package org.gvsig.remoteclient.wms;

import java.awt.geom.Rectangle2D;

import java.util.Vector;

/**

 * Describes the status of a WMSclient, so it adds to the Remote client status

 * a list of layers, a list of layer styles, the extent of the map.

 * Provides the functionality to modify these lists.

 * 

 */

public class WMSStatus extends org.gvsig.remoteclient.RemoteClientStatus {

	// list of layer to be retrieved by the WMS

    private Vector layers;

    // List of layer styles

    private Vector styles;

    private Vector dimensions;

    // extent required by the WMS client

    private Rectangle2D extent;

    private boolean transparency;

	private String onlineResource;

    public WMSStatus()

    {

    	layers = new Vector();

    	styles = new Vector();    	    	

    }

    // sets the list of layers required by the WMS client

    public void setLayerNames(Vector _layers) {        

        layers = _layers;

    } 

/**

 * <p>Retrieves the layer list required by the WMS client</p>

 * 

 * 

 * @return Vector, the list of layers

 */

    public Vector getLayerNames() {        

        return layers;

    } 

/**

 * <p> Adds a layer to the list of layers required by the WMS client</p>

 * 

 * 

 * @param _layerName, name of the layer to be added. 

 */

    public void addLayerName(String _layerName) {        

        layers.add(_layerName);

    } 

/**

 * <p>removes a layer from the layer list</p>

 * 

 * 

 * @param _layerName 

 * @return true if the layer name has been deleted from the list

 */

    public boolean removeLayerName(String _layerName) {

    	return layers.remove(_layerName);       

    } 

/**

 * <p>gets the styles list required by the WMS client</p>

 * 

 * 

 * @return Vector with the list of layer styles

 */

    public Vector getStyles() {        

        return styles;

    } 

/**

 * <p>sets the styles list required by the WMS client</p>

 * 

 * 

 * @param _styles, list to be set as the required styles.

 */

    public void setStyles(Vector _styles) {        

        styles = _styles;

    }