RELEASE_2_1_13/src/blocks/template/java/org/apache/cocoon/template/script/event/StartPrefixMapping.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.cocoon.template.script.event;

import org.apache.cocoon.components.expression.ExpressionContext;
import org.apache.cocoon.template.environment.ExecutionContext;
import org.apache.cocoon.template.instruction.MacroContext;
import org.apache.cocoon.xml.XMLConsumer;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;

/**
 * @version SVN $Id$
 */
public class StartPrefixMapping extends Event {
    public StartPrefixMapping(Locator location, String prefix, String uri) {
        super(location);
        this.prefix = prefix;
        this.uri = uri;
    }

    public String getPrefix() {
        return prefix;
    }

    public String getUri() {
        return uri;
    }

    private final String prefix;
    private final String uri;

    public Event execute(XMLConsumer consumer,
            ExpressionContext expressionContext,
            ExecutionContext executionContext, MacroContext macroContext,
            Event startEvent, Event endEvent) throws SAXException {
        
        expressionContext.getNamespaces().addDeclaration(getPrefix(), getUri());
        // the startPrefixMapping event will be sent in StartElement
        return getNext();
    }
}