/*
    * 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.myfaces.shared.resource;
  
  /**
   * Contains the metadata information to reference a resource 
   */
  public class ResourceMetaImpl extends ResourceMeta
  {
  
      private final String _prefix;
      private final String _libraryName;
      private final String _libraryVersion;
      private final String _resourceName;
      private final String _resourceVersion;
      private final String _contractName;
  
      public ResourceMetaImpl(String prefix, String libraryName, String libraryVersion,
              String resourceName, String resourceVersion)
      {
          this(prefix, libraryName, libraryVersion, resourceName, resourceVersion, null);
      }
      
      public ResourceMetaImpl(String prefix, String libraryName, String libraryVersion,
              String resourceName, String resourceVersion, String contractName)
      {
          _prefix = prefix;
          _libraryName = libraryName;
          _libraryVersion = libraryVersion;
          _resourceName = resourceName;
          _resourceVersion = resourceVersion;
          _contractName = contractName;
      }
  
      public String getLibraryName()
      {
          return _libraryName;
      }    
      
      public String getResourceName()
      {
          return _resourceName;
      }    
  
      public String getLocalePrefix()
      {
          return _prefix;
      }
  
      public String getLibraryVersion()
      {
          return _libraryVersion;
      }
  
      public String getResourceVersion()
      {
          return _resourceVersion;
      }
  
      public String getContractName()
      {
          return _contractName;
      }
      
      @Override
      public String getResourceIdentifier()
      {
          StringBuilder builder = new StringBuilder();
          boolean firstSlashAdded = false;
          if (_prefix != null && _prefix.length() > 0)
          {
              builder.append(_prefix);
              firstSlashAdded = true;
          }
          if (_libraryName != null)
          {
              if (firstSlashAdded)
              {
                  builder.append('/');
              }
              builder.append(_libraryName);
              firstSlashAdded = true;
          }
         if (_libraryVersion != null)
         {
             if (firstSlashAdded)
             {
                 builder.append('/');
             }
             builder.append(_libraryVersion);
             firstSlashAdded = true;
         }
         if (_resourceName != null)
         {
             if (firstSlashAdded)
             {
                 builder.append('/');
             }
             builder.append(_resourceName);
             firstSlashAdded = true;
         }
         if (_resourceVersion != null)
         {
             if (firstSlashAdded)
             {
                 builder.append('/');
             }
             builder.append(_resourceVersion);
             builder.append(
                     _resourceName.substring(_resourceName.lastIndexOf('.')));
             firstSlashAdded = true;
         }
 
         return builder.toString();
     }
 
     @Override
     public boolean couldResourceContainValueExpressions()
     {
         return false;
     }
 
 }