001    // Copyright 2006, 2008, 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.internal.parser;
016    
017    import org.apache.tapestry5.ioc.Location;
018    import org.apache.tapestry5.ioc.Resource;
019    import org.apache.tapestry5.ioc.internal.util.CollectionFactory;
020    import static org.apache.tapestry5.ioc.internal.util.CollectionFactory.newList;
021    import org.apache.tapestry5.ioc.internal.util.InternalUtils;
022    
023    import java.util.List;
024    import java.util.Map;
025    
026    public class ComponentTemplateImpl implements ComponentTemplate
027    {
028        private final Resource resource;
029    
030        private final List<TemplateToken> tokens;
031    
032        private final Map<String, Location> componentIds;
033    
034        private final boolean extension;
035    
036        private final Map<String, List<TemplateToken>> overrides;
037    
038        /**
039         * @param resource     the resource from which the template was parsed
040         * @param tokens       the tokens of the template, a copy of this list will be made
041         * @param componentIds ids of components defined in the template
042         * @param extension
043         * @param overrides    id to list of tokens for that override
044         */
045        public ComponentTemplateImpl(Resource resource, List<TemplateToken> tokens,
046                                     Map<String, Location> componentIds, boolean extension,
047                                     Map<String, List<TemplateToken>> overrides)
048        {
049            this.resource = resource;
050            this.extension = extension;
051            this.overrides = overrides;
052            this.tokens = newList(tokens);
053            this.componentIds = CollectionFactory.newMap(componentIds);
054        }
055    
056        public Resource getResource()
057        {
058            return resource;
059        }
060    
061        public List<TemplateToken> getTokens()
062        {
063            return tokens;
064        }
065    
066        public Map<String, Location> getComponentIds()
067        {
068            return componentIds;
069        }
070    
071        /**
072         * Returns false.
073         */
074        public boolean isMissing()
075        {
076            return false;
077        }
078    
079        public List<TemplateToken> getExtensionPointTokens(String extensionPointId)
080        {
081            return InternalUtils.get(overrides, extensionPointId);
082        }
083    
084        public boolean isExtension()
085        {
086            return extension;
087        }
088    }