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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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 *
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/*
 * $Id: StartElementEvent.java,v 1.4 2010-11-01 04:40:42 joehw Exp $
 * %W% %E%
 */
package com.sun.xml.internal.stream.events ;

import java.util.List;
import java.util.Map;
import java.util.HashMap;
import java.util.Iterator;
import java.util.ArrayList;
import java.util.Collection;

import javax.xml.namespace.QName;
import javax.xml.stream.events.StartElement;
import javax.xml.stream.events.Attribute;
import javax.xml.namespace.NamespaceContext;
import java.io.Writer;
import com.sun.xml.internal.stream.util.ReadOnlyIterator;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.events.Namespace;

/** Implementation of StartElementEvent.
 *
 * @author Neeraj Bajaj Sun Microsystems,Inc.
 * @author K.Venugopal Sun Microsystems,Inc.
 */

public class StartElementEvent extends DummyEvent
implements StartElement {
    
    private Map fAttributes;
    private List fNamespaces;
    private NamespaceContext fNamespaceContext = null;
    private QName fQName;
        
    public StartElementEvent(String prefix, String uri, String localpart) {
        this(new QName(uri, localpart, prefix));
    }
    
    public StartElementEvent(QName qname) {
        fQName = qname;
        init();
    }
    
    public StartElementEvent(StartElement startelement) {
        this(startelement.getName());
        addAttributes(startelement.getAttributes());
        addNamespaceAttributes(startelement.getNamespaces());
    }
    
    protected void init() {
        setEventType(XMLStreamConstants.START_ELEMENT);
        fAttributes = new HashMap();
        fNamespaces = new ArrayList();
    }
    
    public QName getName() {
        return fQName;
    }
    
    public void setName(QName qname) {
        this.fQName = qname;
    }
    
    public Iterator getAttributes() {
        if(fAttributes != null){
            Collection coll = fAttributes.values();
            return new ReadOnlyIterator(coll.iterator());
        }
        return new ReadOnlyIterator();
    }
    
    public Iterator getNamespaces() {
        if(fNamespaces != null){
            return new ReadOnlyIterator(fNamespaces.iterator());
        }
        return new ReadOnlyIterator();
    }
    
    public Attribute getAttributeByName(QName qname) {
        if(qname == null)
            return null;
        return (Attribute)fAttributes.get(qname);
    }
    
    public String getNamespace(){
        return fQName.getNamespaceURI();
    }
    
    public String getNamespaceURI(String prefix) {
        //check that URI was supplied when creating this startElement event and prefix matches 
        if( getNamespace() != null && fQName.getPrefix().equals(prefix)) return getNamespace();
        //else check the namespace context
        if(fNamespaceContext != null)
            return fNamespaceContext.getNamespaceURI(prefix);
        return null;
    }

    /**
     * 

Return a String representation of this * StartElement formatted as XML.

* * @return String representation of this * StartElement formatted as XML. */ public String toString() { StringBuffer startElement = new StringBuffer(); // open element startElement.append("<"); startElement.append(nameAsString()); // add any attributes if (fAttributes != null) { Iterator it = this.getAttributes(); Attribute attr = null; while (it.hasNext()) { attr = (Attribute) it.next(); startElement.append(" "); startElement.append(attr.toString()); } } // add any namespaces if (fNamespaces != null) { Iterator it = fNamespaces.iterator(); Namespace attr = null; while (it.hasNext()) { attr = (Namespace) it.next(); startElement.append(" "); startElement.append(attr.toString()); } } // close start tag startElement.append(">"); // return StartElement as a String return startElement.toString(); } /** Return this event as String * @return String Event returned as string. */ public String nameAsString() { if("".equals(fQName.getNamespaceURI())) return fQName.getLocalPart(); if(fQName.getPrefix() != null) return "['" + fQName.getNamespaceURI() + "']:" + fQName.getPrefix() + ":" + fQName.getLocalPart(); else return "['" + fQName.getNamespaceURI() + "']:" + fQName.getLocalPart(); } /** Gets a read-only namespace context. If no context is * available this method will return an empty namespace context. * The NamespaceContext contains information about all namespaces * in scope for this StartElement. * * @return the current namespace context */ public NamespaceContext getNamespaceContext() { return fNamespaceContext; } public void setNamespaceContext(NamespaceContext nc) { fNamespaceContext = nc; } protected void writeAsEncodedUnicodeEx(java.io.Writer writer) throws java.io.IOException { writer.write(toString()); } void addAttribute(Attribute attr){ if(attr.isNamespace()){ fNamespaces.add(attr); }else{ fAttributes.put(attr.getName(),attr); } } void addAttributes(Iterator attrs){ if(attrs == null) return; while(attrs.hasNext()){ Attribute attr = (Attribute)attrs.next(); fAttributes.put(attr.getName(),attr); } } void addNamespaceAttribute(Namespace attr){ if(attr == null) return; fNamespaces.add(attr); } void addNamespaceAttributes(Iterator attrs){ if(attrs == null) return; while(attrs.hasNext()){ Namespace attr = (Namespace)attrs.next(); fNamespaces.add(attr); } } }




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