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World Wind is a collection of components that interactively display 3D geographic information within Java applications or applets.
/*
* Copyright (C) 2012 United States Government as represented by the Administrator of the
* National Aeronautics and Space Administration.
* All Rights Reserved.
*/
package gov.nasa.worldwind.ogc;
import gov.nasa.worldwind.util.WWUtil;
import gov.nasa.worldwind.util.xml.*;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.events.XMLEvent;
import java.util.*;
/**
* Parses an OGC Request element.
*
* @author tag
* @version $Id: OGCRequestDescription.java 1171 2013-02-11 21:45:02Z dcollins $
*/
public class OGCRequestDescription extends AbstractXMLEventParser
{
protected QName FORMAT;
protected QName DCPTYPE;
protected String requestName;
protected Set formats;
protected Set dcpTypes;
public OGCRequestDescription(String namespaceURI)
{
super(namespaceURI);
this.initialize();
}
private void initialize()
{
FORMAT = new QName(this.getNamespaceURI(), "Format");
DCPTYPE = new QName(this.getNamespaceURI(), "DCPType");
}
@Override
public XMLEventParser allocate(XMLEventParserContext ctx, XMLEvent event)
{
XMLEventParser defaultParser = null;
if (ctx.isStartElement(event, DCPTYPE))
defaultParser = new OGCDCType(this.getNamespaceURI());
return ctx.allocate(event, defaultParser);
}
public Object parse(XMLEventParserContext ctx, XMLEvent rqstEvent, Object... args) throws XMLStreamException
{
if (this.formats != null)
this.formats.clear();
if (this.dcpTypes != null)
this.dcpTypes.clear();
if (rqstEvent.isStartElement())
this.setRequestName(rqstEvent.asStartElement().getName().getLocalPart());
return super.parse(ctx, rqstEvent, args);
}
@Override
protected void doParseEventContent(XMLEventParserContext ctx, XMLEvent event, Object... args)
throws XMLStreamException
{
if (ctx.isStartElement(event, FORMAT))
{
String s = ctx.getStringParser().parseString(ctx, event);
if (!WWUtil.isEmpty(s))
this.addFormat(s);
}
else if (ctx.isStartElement(event, DCPTYPE))
{
XMLEventParser parser = this.allocate(ctx, event);
if (parser != null)
{
Object o = parser.parse(ctx, event, args);
if (o != null && o instanceof OGCDCType)
this.addDCPType((OGCDCType) o);
}
}
}
public OGCOnlineResource getOnlineResouce(String protocol, String requestMethod)
{
for (OGCDCType dct : this.getDCPTypes())
{
OGCOnlineResource olr = dct.getOnlineResouce(protocol, requestMethod);
if (olr != null)
return olr;
}
return null;
}
public Set getFormats()
{
if (this.formats != null)
return formats;
else
return Collections.emptySet();
}
protected void setFormats(Set formats)
{
this.formats = formats;
}
protected void addFormat(String format)
{
if (this.formats == null)
this.formats = new HashSet();
this.formats.add(format);
}
protected void setDCPTypes(Set dcTypes)
{
this.dcpTypes = dcTypes;
}
public Set getDCPTypes()
{
if (this.dcpTypes != null)
return dcpTypes;
else
return Collections.emptySet();
}
public void addDCPType(OGCDCType dct)
{
if (this.dcpTypes == null)
this.dcpTypes = new HashSet();
this.dcpTypes.add(dct);
}
public String getRequestName()
{
return requestName;
}
protected void setRequestName(String requestName)
{
this.requestName = requestName;
}
@Override
public String toString()
{
StringBuilder sb = new StringBuilder();
if (this.getRequestName() != null)
sb.append(this.getRequestName()).append("\n");
sb.append("\tFormats: ");
for (String format : this.getFormats())
{
sb.append("\t").append(format).append(", ");
}
sb.append("\n\tDCPTypes:\n");
for (OGCDCType dcpt : this.getDCPTypes())
{
sb.append("\t\t").append(dcpt.toString()).append("\n");
}
return sb.toString();
}
}