/*
    * Copyright 2012 The Kuali Foundation.
    * 
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    * 
   * 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.kuali.ole.docstore.model.xmlpojo.metadata;
  
  import org.apache.commons.io.IOUtils;
  import org.kuali.ole.docstore.model.xstream.metadata.DocStoreMetaDataXmlProcessor;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.thoughtworks.xstream.annotations.XStreamAlias;
  import com.thoughtworks.xstream.annotations.XStreamImplicit;
  
  import java.util.List;
  
  /**
   * Class to DocumentsMetaData.
   * 
   * @author Rajesh Chowdary K
   * @created Jun 14, 2012
   */
  @XStreamAlias("documentsMetaData")
  public class DocumentsMetaData {
  
      public static Logger            logger            = LoggerFactory.getLogger(DocumentsMetaData.class);
      public static DocumentsMetaData docStoreMetaData  = null;
  
      @XStreamImplicit
      @XStreamAlias("documentMetaData")
      private List<DocumentMetaData>  documentsMetaData = null;
  
      public List<DocumentMetaData> getDocumentsMetaData() {
          return documentsMetaData;
      }
  
      public void setDocumentsMetaData(List<DocumentMetaData> documentsMetaData) {
          this.documentsMetaData = documentsMetaData;
      }
  
      public DocumentMetaData getDocumentMetaData(String category, String type, String format) {
          if (documentsMetaData != null && documentsMetaData.size() > 0)
              for (DocumentMetaData docMetaData : documentsMetaData)
                  if (docMetaData.getCategory().equals(category) && docMetaData.getType().equals(type) && docMetaData.getFormat().equals(format))
                      return docMetaData;
          return null;
      }
  
      public static DocumentsMetaData getInstance() {
          if (docStoreMetaData == null) {
              try {
                  DocStoreMetaDataXmlProcessor parser = new DocStoreMetaDataXmlProcessor();
                  String xml = IOUtils.toString(DocumentsMetaData.class.getResourceAsStream("/org/kuali/ole/docstore/documentsMetaData.xml"));
                  docStoreMetaData = parser.fromXml(xml);
                  logger.info("Loaded Doc Store Meta Data Successfully.");
              } catch (Exception e) {
                  logger.error("Failed in Loading Doc Store Meta Data : Cause : " + e.getMessage(), e);
              }
          }
          return docStoreMetaData;
      }
  
  }