package at.meikel.dmrl.server.httpclient;
   
   import at.meikel.dmrl.server.server.DataRetriever;
   
   import java.io.File;
   import java.io.FileInputStream;
   import java.io.FileNotFoundException;
   import java.io.IOException;
   import java.io.InputStream;
  import java.util.Date;
  
  import org.apache.log4j.Logger;
  
  public class LocalFileDataRetriever implements DataRetriever {
  
      private final static Logger LOGGER = Logger.getLogger(LocalFileDataRetriever.class);
      private File file;
      private String path = "C:/michael.becker/_Privat/at.meikel.dmrl.root/at.meikel.dmrl.server/src/main/resources";
      private InputStream inputStream;
  
  
      public LocalFileDataRetriever(String filename) {
          file = new File(path, filename);
      }
  
      @Override
      public String getUrl() {
          return path;
      }
  
      @Override
      public InputStream retrieveInputStream() {
          InputStream inputStream = null;
  
          try {
          	inputStream = new FileInputStream(file);
          } catch (FileNotFoundException e) {
          	LOGGER.warn("File '" + path + "' not found: " + e.getLocalizedMessage());
          }
  
          return inputStream;
      }
  
      @Override
      public void freeAllResources() {
      	if (inputStream != null) {
      		try {
  				inputStream.close();
  			} catch (IOException e) {
  				LOGGER.warn("Failed to close input stream for file '" + path + "'.", e);
  			}
      	}
      }
      
      @Override
      public boolean findCurrentFile() {
          return true;
      }
  
      @Override
      public String getCurrentFileName() {
          return file.getAbsolutePath();
      }
  
      @Override
      public Date getCurrentFileDate() {
          return new Date(file.lastModified());
      }
  
  }