    001    // Copyright 2009 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.dom;
    016
    017    import org.apache.tapestry5.internal.TapestryInternalUtils;
    018
    019    import java.util.Map;
    020
    021    /**
    022     * An attribute within an {@link org.apache.tapestry5.dom.Element}. Each attribute has a namespace URI, a local name
    023     * within the namespace, and a value.
    024     *
    025     * @since 5.1.0.2
    026     */
    027    public class Attribute
    028    {
    029        private final Element element;
    030
    031        private final String namespace;
    032
    033        private final String name;
    034
    035        String value;
    036
    037        Attribute nextAttribute;
    038
    039        Attribute(Element element, String namespace, String name, String value, Attribute nextAttribute)
    040        {
    041            this.element = element;
    042            this.namespace = namespace;
    043            this.name = name;
    044            this.value = value;
    045            this.nextAttribute = nextAttribute;
    046        }
    047
    048        public String getName()
    049        {
    050            return name;
    051        }
    052
    053        public String getNamespace()
    054        {
    055            return namespace;
    056        }
    057
    058        public String getValue()
    059        {
    060            return value;
    061        }
    062
    063        void render(MarkupModel model, StringBuilder builder, Map<String, String> namespaceURIToPrefix)
    064        {
    065            builder.append(" ");
    066            builder.append(element.toPrefixedName(namespaceURIToPrefix, namespace, name));
    067            builder.append("=");
    068            builder.append(model.getAttributeQuote());
    069            model.encodeQuoted(value, builder);
    070            builder.append(model.getAttributeQuote());
    071        }
    072
    073        boolean matches(String namespace, String name)
    074        {
    075            return TapestryInternalUtils.isEqual(this.namespace, namespace) &&
    076                    this.name.equalsIgnoreCase(name);
    077        }
    078    }