001    // Copyright 2006, 2011 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry5.internal.parser;
016    
017    import org.apache.tapestry5.MarkupWriter;
018    import org.apache.tapestry5.ioc.Location;
019    import org.apache.tapestry5.runtime.RenderCommand;
020    import org.apache.tapestry5.runtime.RenderQueue;
021    
022    /**
023     * Stores an attribute/value pair (as part of an XML element).
024     */
025    public class AttributeToken extends TemplateToken implements RenderCommand
026    {
027        public final String namespaceURI;
028    
029        public final String name;
030    
031        public final String value;
032    
033        public AttributeToken(String namespaceURI, String name, String value, Location location)
034        {
035            super(TokenType.ATTRIBUTE, location);
036    
037            this.namespaceURI = namespaceURI;
038            this.name = name;
039            this.value = value;
040        }
041    
042        public void render(MarkupWriter writer, RenderQueue queue)
043        {
044            writer.attributeNS(namespaceURI, name, value);
045        }
046    
047    
048        @Override
049        public String toString()
050        {
051            StringBuilder builder = new StringBuilder("Attribute[");
052    
053            if (namespaceURI.length() > 0) builder.append(namespaceURI).append(" ");
054    
055            builder.append(name).append("=").append(value).append("]");
056    
057            return builder.toString();
058        }
059    }