svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libRemoteServices / src / org / gvsig / remoteclient / wms / WMSLayer.java @ 29658
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package org.gvsig.remoteclient.wms; |
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import java.io.IOException; |
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import java.util.ArrayList; |
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import java.util.Hashtable; |
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import java.util.TreeMap; |
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import java.util.Vector; |
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import org.gvsig.remoteclient.utils.BoundaryBox; |
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import org.gvsig.remoteclient.utils.CapabilitiesTags; |
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import org.kxml2.io.KXmlParser; |
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import org.xmlpull.v1.XmlPullParserException; |
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|
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/**
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* <p>Abstract class that defines an WMSLayer.</p>
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*
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*/
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public abstract class WMSLayer implements org.gvsig.remoteclient.ILayer { |
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protected ArrayList children; |
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protected WMSLayer parent;
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/**
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* <p>Layer Abstract field in the capabilities document </p>
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*/
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private String layerAbstract; |
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|
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/**
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* <p>Themes provided by the WMS for the layer</p>
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*/
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public ArrayList styles = new ArrayList(); |
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/**
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* <p>Layer name</p>
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*/
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private String name; |
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/**
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* <p>Layer title</p>
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*/
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private String title; |
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private ArrayList keywordList = new ArrayList(); |
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/**
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* <p>Layer srs.</p>
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*/
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protected Vector srs = new Vector(); |
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/**
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* <p>extents for each srs the layer can be reproyected to</p>
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*/
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private Hashtable bBoxes = new Hashtable(); |
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/**
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* <p>extents that defines the bbox for the LatLon projection
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* It can be included in the bBoxes vector as well, because it is the most used, we keep it separeted too, according
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* with the OGC WMSCapabilities specifications...
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*/
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private org.gvsig.remoteclient.utils.BoundaryBox latLonBbox;
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/**
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* <p>min scale for the layer to be visible</p>
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*/
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private double scaleMin; |
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/**
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* <p>max scale for the layer to be visible</p>
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*/
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private double scaleMax; |
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/**
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* <p>Dimensions defined for the layer in the capabilities doc</p>
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*/
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protected java.util.ArrayList dimensions = new ArrayList(); |
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/**
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* Tells if this layer accepts getFeatureInfo requests.
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*/
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private boolean queryable = false; |
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/**
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* Tells if this layer is opaque.
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*/
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private boolean opaque = false; |
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/**
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* when set to true, noSubsets indicates that the server is not able to make a map
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* of a geographic area other than the layer's bounding box.
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*/
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private boolean m_noSubSets = false; |
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/**
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* when present and non-zero fixedWidth and fixedHeight indicate that the server is not
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* able to produce a map of the layer at a width and height different from the fixed sizes indicated.
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*/
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private int fixedWidth = 0; |
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private int fixedHeight = 0; |
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/**
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* Tells if this layer can be served with transparency.
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*/
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private boolean transparency; |
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/**
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* <p>Parses the LAYER tag in the WMS capabilities, filling the WMSLayer object
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* loading the data in memory to be easily accesed</p>
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*
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*/
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public abstract void parse(KXmlParser parser, TreeMap layerTreeMap) |
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throws IOException, XmlPullParserException; |
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//public abstract ArrayList getAllDimensions();
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/**
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* add a new keyword to the keywordList.
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* @param key
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*/
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protected void addkeyword(String key) |
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{ |
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keywordList.add(key); |
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} |
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public ArrayList getKeywords() |
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{ |
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return keywordList;
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} |
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/**
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* <p>Adds a style to the styles vector</p>
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* @param _style
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*/
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public void addStyle(org.gvsig.remoteclient.wms.WMSStyle _style) { |
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styles.add( _style ); } |
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/**
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* <p>Gets the style vector</p>
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* @return
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*/
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public ArrayList getStyles() { |
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ArrayList list = new ArrayList(); |
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if (styles != null) |
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list.addAll(styles); |
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if (this.getParent()!= null) |
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{ |
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//return getAllStyles(this);
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if(this.getParent().getStyles() != null) |
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list.addAll(this.getParent().getStyles());
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} |
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return list;
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} |
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public ArrayList getAllStyles(WMSLayer layer) |
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{ |
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if (layer.getParent()!= null) |
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{ |
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ArrayList list = getAllStyles(layer.getParent());
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for(int i = 0; i < this.styles.size(); i++) |
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{ |
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list.add(styles.get(i)); |
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} |
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return list;
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} |
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else
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{ |
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return styles;
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} |
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} |
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/**
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* <p>Adds a bbox to the Bboxes vector</p>
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* @param bbox
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*/
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public void addBBox(BoundaryBox bbox) { |
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bBoxes.put(bbox.getSrs(), bbox); |
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} |
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/**
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* <p>returns the bbox with that id in the Bboxes vector</p>
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* @param id
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*/
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public BoundaryBox getBbox(String id) { |
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if ((id.compareToIgnoreCase( CapabilitiesTags.EPSG_4326 )==0) |
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||(id.compareToIgnoreCase( CapabilitiesTags.CRS_84)==0))
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{ |
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if (latLonBbox != null) |
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return (BoundaryBox)latLonBbox;
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} |
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BoundaryBox b = (BoundaryBox) bBoxes.get(id); |
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if (b == null && parent!=null) |
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return parent.getBbox(id);
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return (BoundaryBox)bBoxes.get(id);
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} |
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/**
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* <p>Gets the bBoxes vector</p>
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* @return
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*/
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public Hashtable getBboxes() { |
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return bBoxes;
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} |
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//Methods to manipulate the box that defines the layer extent in LatLon SRS.
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public BoundaryBox getLatLonBox()
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{ |
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return latLonBbox;
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} |
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public void setLatLonBox(BoundaryBox box) |
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{ |
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latLonBbox = box; |
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} |
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/**
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* <p>adds a new srs to the srs vector</p>
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*/
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public void addSrs(String srs) |
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{ |
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if (!this.srs.contains(srs)) |
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this.srs.add(srs);
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} |
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public Vector getAllSrs() |
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{ |
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Vector mySRSs = (Vector) this.srs.clone(); |
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if (parent!=null) |
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mySRSs.addAll(parent.getAllSrs()); |
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return mySRSs;
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// if (this.getParent()!= null)
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// {
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// Vector list = this.getParent().getAllSrs();
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// for(int i = 0; i < this.srs.size(); i++)
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// {
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// list.add(srs.get(i));
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// }
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// return list;
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// }
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// else
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// {
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// return srs;
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// }
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} |
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/**
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* <p>gets the maximum scale for this layer</p>
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* @return
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*/
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public double getScaleMax() { |
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return scaleMax;
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} |
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/**
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* <p>gets the minimum scale for this layer</p>
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* @return
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*/
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public double getScaleMin() { |
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return scaleMin;
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} |
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/**
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* <p>sets the minimum scale for this layer to be visible.</p>
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*
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* @param scale
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*/
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public void setScaleMin(double scale) { |
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scaleMin = scale; |
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} |
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/**
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* <p>sets the maximum scale for this layer to be visible</p>
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* @param scale
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*/
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public void setScaleMax(double scale) { |
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scaleMax = scale; |
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} |
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/**
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* <p> gets the dimension vector defined in this layer</p>
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* @return
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*/
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public abstract ArrayList getDimensions(); |
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// public ArrayList getDimensions() {
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// return dimensions;
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// }
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public WMSDimension getDimension(String name) |
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{ |
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for(int i = 0; i < dimensions.size(); i++ ){ |
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if(((WMSDimension)dimensions.get(i)).getName().compareTo(name)==0) |
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{ |
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return (WMSDimension)dimensions.get(i);
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} |
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} |
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return null; |
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} |
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// /**
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// * <p>Sets the dimension vector defined for this layer</p>
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// * @param v
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// */
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// public void setDimensions(ArrayList v) {
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// dimensions = (ArrayList)v.clone();
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// }
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/**
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* <p>Adds a dimension to the dimension vector </p>
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* @param dimension
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*/
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public void addDimension(org.gvsig.remoteclient.wms.WMSDimension dimension) { |
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dimensions.add(dimension); |
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} |
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/**
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* <p>Gets layer name</p>
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* @return
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*/
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public String getName() { |
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return this.name; |
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} |
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/**
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* <p>Sets layer name</p>
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* @param _name
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*/
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public void setName(String name) { |
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this.name = name;
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} |
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/**
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* <p>Gets layer title</p>
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* @return
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*/
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public String getTitle() { |
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return title;
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} |
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/**
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* <p>Sets the layer title</p>
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* @param _title
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*/
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public void setTitle(String title) { |
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this.title = title;
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} |
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/**
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* <p>Gets the layer abstract</p>
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* @return
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*/
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public String getAbstract() { |
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return layerAbstract;
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} |
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/**
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* <p>Sets the layer abstract</p>
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* @param m_abstract
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*/
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public void setAbstract(String _abstract) { |
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layerAbstract = _abstract; |
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} |
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public ArrayList getChildren() { |
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return children;
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} |
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public void setChildren(ArrayList children) { |
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this.children = children;
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} |
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public WMSLayer getParent() {
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return parent;
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} |
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public void setParent(WMSLayer parent) { |
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this.parent = parent;
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} |
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public String toString(){ |
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return this.getTitle(); |
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} |
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/**
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* Tells if this layer accepts getFeatureInfo requests.
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*/
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public boolean isQueryable() { |
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return queryable;
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} |
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/**
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* @param queryable The queryable to set.
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*/
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public void setQueryable(boolean queryable) { |
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this.queryable = queryable;
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} |
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/**
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* Tells if this layer is opaque.
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*/
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public boolean isOpaque() { |
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return opaque;
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} |
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/**
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* @param opaque.
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*/
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public void setOpaque(boolean opaque) { |
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this.opaque = opaque;
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} |
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/**
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* Tells if this layer is subsettable
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*/
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public boolean noSubSets() { |
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return this.m_noSubSets; |
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} |
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/**
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* @param set layer nosubsets attribute.
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*/
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public void setNoSubSets(boolean _noSubSets) { |
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m_noSubSets = _noSubSets; |
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} |
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public void setfixedWidth(int w) { |
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fixedWidth = w; |
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} |
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public int getfixedWidth() { |
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return fixedWidth;
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} |
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public void setfixedHeight(int h) { |
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fixedHeight = h; |
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} |
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public int getfixedHeight() { |
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return fixedHeight;
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} |
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/**
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* @return <b>true</b> if this layer can be served with transparency, otherwise <b>false</b>
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*/
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public boolean hasTransparency() { |
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return transparency;
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} |
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//Methods to parse tags that are common to several versions of WMS.
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//In case there is a version which has different implemantation of one of this tags
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// the subclass can overwrite this method
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/**
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* Parses the keywordlist from the capabilities and fills this list in the WMSLayer.
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* @param parser
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*/
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protected void parseKeywordList(KXmlParser parser) throws IOException, XmlPullParserException |
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{ |
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int currentTag;
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boolean end = false; |
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String value;
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parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.KEYWORDLIST);
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currentTag = parser.nextTag(); |
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while (!end)
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{ |
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switch(currentTag)
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{ |
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case KXmlParser.START_TAG:
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if (parser.getName().compareTo(CapabilitiesTags.KEYWORD)==0) |
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{ |
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value = parser.nextText(); |
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if ((value != null) && (value.length() > 0 )) |
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addkeyword(value); |
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} |
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break;
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case KXmlParser.END_TAG:
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if (parser.getName().compareTo(CapabilitiesTags.KEYWORDLIST) == 0) |
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end = true;
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break;
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case KXmlParser.TEXT:
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break;
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} |
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if (!end)
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{ |
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currentTag = parser.next(); |
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} |
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} |
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parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.KEYWORDLIST);
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} |
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|
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/**
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* Reads and parses the layer attributes
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* Maybe this method should be moved to the WMSLayer. Until now the attributes are teh same for all versions.
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* @param parser
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*/
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protected void readLayerAttributes(KXmlParser parser) |
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{ |
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String value = new String(); |
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//First of all set whether the layer is Queryable reading the attribute.
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value = parser.getAttributeValue("", CapabilitiesTags.QUERYABLE);
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if (value != null) |
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{ |
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if (value.compareTo("0")==0) |
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setQueryable(false);
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else
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setQueryable(true);
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} |
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value = parser.getAttributeValue("", CapabilitiesTags.OPAQUE);
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if (value != null) |
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{ |
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if (value.compareTo("0")==0) |
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setOpaque(false);
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else
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setOpaque(true);
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} |
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value = parser.getAttributeValue("", CapabilitiesTags.NOSUBSETS);
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if (value != null) |
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{ |
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if (value.compareTo("0")==0) |
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setNoSubSets(false);
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else
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setNoSubSets(true);
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} |
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value = parser.getAttributeValue("", CapabilitiesTags.FIXEDWIDTH);
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if (value != null) |
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{ |
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setfixedWidth(Integer.parseInt(value));
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} |
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value = parser.getAttributeValue("", CapabilitiesTags.FIXEDHEIGHT);
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if (value != null) |
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{ |
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setfixedHeight(Integer.parseInt(value));
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} |
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} |
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|
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/**
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* <p>Inner class describing the MetadataURL tag in OGC specifications in WMS</p>
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*
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*/
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protected class MetadataURL |
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{ |
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public MetadataURL()
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{ |
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type = new String(); |
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format = new String(); |
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onlineResource_xlink = new String(); |
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onlineResource_type = new String(); |
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onlineResource_href = new String(); |
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} |
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public String type; |
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public String format; |
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public String onlineResource_xlink; |
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public String onlineResource_type; |
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public String onlineResource_href; |
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} |
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|
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/**
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* <p>Inner class describing the DataURL tag in OGC specifications in WMS</p>
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*
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*/
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protected class DataURL |
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{ |
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public DataURL()
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{ |
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type = new String(); |
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format = new String(); |
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onlineResource_xlink = new String(); |
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onlineResource_type = new String(); |
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onlineResource_href = new String(); |
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} |
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public String type; |
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public String format; |
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public String onlineResource_xlink; |
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public String onlineResource_type; |
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public String onlineResource_href; |
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} |
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} |