Package ca.carleton.gcrc.onUpload

Source Code of ca.carleton.gcrc.onUpload.ProcessFileThread

/*
Copyright (c) 2010, Geomatics and Cartographic Research Centre, Carleton
University
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

- Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.
- Neither the name of the Geomatics and Cartographic Research Centre,
   Carleton University nor the names of its contributors may be used to
   endorse or promote products derived from this software without specific
   prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.

$Id$
*/
package ca.carleton.gcrc.onUpload;

import java.security.Principal;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.log4j.Logger;

import ca.carleton.gcrc.contributions.Contributions;
import ca.carleton.gcrc.contributions.ContributionComet;
import ca.carleton.gcrc.olkit.multimedia.converter.MultimediaConversionRequest;
import ca.carleton.gcrc.olkit.multimedia.converter.MultimediaConverter;
import ca.carleton.gcrc.olkit.multimedia.converter.impl.MultimediaConverterImpl;
import ca.carleton.gcrc.olkit.multimedia.file.SystemFile;
import ca.carleton.gcrc.progress.ProgressInfo;
import ca.carleton.gcrc.progress.ProgressTracker;

public class ProcessFileThread extends Thread {
  final protected Logger logger = Logger.getLogger(this.getClass());
 
  private UploadedFileInfo fileInfo;
  private String progressId;
  private Map<String, List<String>> parameters;
  private ContributionComet cometChannel;
  private Principal userPrincipal;
  private Contributions contributions;
  private ProgressTracker progressTracker;
  private MultimediaConverter mmConverter = new MultimediaConverterImpl();

  public ProcessFileThread(
      UploadedFileInfo fileInfo
      ,String parentProgressId
      ,Map<String, List<String>> parameters
      ,ContributionComet cometChannel
      ,Principal userPrincipal
      ,Contributions c
      ,ProgressTracker progressTracker
      ) {

    this.fileInfo = fileInfo;
    this.parameters = parameters;
    this.cometChannel = cometChannel;
    this.userPrincipal = userPrincipal;
    this.contributions = c;
    this.progressTracker = progressTracker;
   
    progressId = progressTracker.createIdentifier();
    String desc = "Process file " + fileInfo.getOriginalFilename();
   
    // Chain activity
    progressTracker.initProgress(progressId, desc, 102);
    ProgressInfo info = progressTracker.getProgress(progressId);
    if( null != parentProgressId ) {
      progressTracker.addProgressChain(parentProgressId, info);
    }
  }
 
  public String getProgressId() {
    return progressId;
  }
 
  public void run() {
    try {
      // Perform file type checking
      SystemFile sf = SystemFile.getSystemFile(fileInfo.getUploadedFile());
      fileInfo.setMimeType( sf.getMimeType() );
      fileInfo.setMimeEncoding( sf.getMimeEncoding() );
     
      // Check type
      String mimeType = sf.getMimeType();
     
      logger.info("Processing: "+fileInfo.getOriginalFilename()+" with mimeType: "+mimeType);
     
      if( null == mimeType ) {
        fileInfo.setConvertedFile( fileInfo.getUploadedFile() );
       
      } else if( mimeType.contains("video") ) {
        // For video file, convert to appropriate file type
        convertVideo();

      } else if( mimeType.contains("audio") ) {
        // For audio file, convert to appropriate file type
        convertAudio();
       
      } else if( mimeType.contains("image") ) {
        // For image file, convert to appropriate file type
        convertImage();
       
      } else {
        fileInfo.setConvertedFile( fileInfo.getUploadedFile() );
      }
     
      // Insert contribution in database
      ContributionHandler t = new ContributionHandler(parameters, userPrincipal);
      List<String> vec = parameters.get("isUpdate");
      if (null == vec) {
        throw new Exception("Required isUpdate parameter undefined.");
      }
      if ("true".equalsIgnoreCase(vec.get(0))) {
        t.performDatabaseUpdate(fileInfo, contributions);
      } else {
        t.performDatabaseInsert(fileInfo, contributions);
      }
     
      // Report end of this activity
      Map<String,String> data = new HashMap<String,String>();
      data.put("file", fileInfo.getOriginalFilename());
      data.put("mime-type", fileInfo.getMimeType());
      data.put("mime-encoding", fileInfo.getMimeEncoding());
      if( parameters.containsKey("place_id") && parameters.get("place_id").size() > 0 ) {
        data.put("place_id", parameters.get("place_id").get(0));
      }
      progressTracker.updateProgressData(progressId, data);
      progressTracker.completeProgress(progressId, null);
     
      // Send completion on comet channel
      if( null != cometChannel
       && parameters.containsKey("place_id")
       && parameters.get("place_id").size() > 0
       ) {
        cometChannel.reportNewContribution(parameters.get("place_id").get(0),null);
      }
     
    } catch(Exception e) {
      e.printStackTrace();
      progressTracker.completeProgress(progressId, e.getMessage());
    }
  }
 
  private void convertVideo() throws Exception {
   
    MultimediaConversionRequest request = new MultimediaConversionRequest();
    request.setInFile( fileInfo.getUploadedFile() );
    request.setThumbnailRequested(true);
    request.setProgress( new MultimediaProgressAdaptor(progressId,progressTracker) );

    mmConverter.convertVideo(request);
   
    fileInfo.setConvertedFile( request.getOutFile() );
  }
 
  private void convertAudio() throws Exception {
   
    MultimediaConversionRequest request = new MultimediaConversionRequest();
    request.setInFile( fileInfo.getUploadedFile() );
    request.setProgress( new MultimediaProgressAdaptor(progressId,progressTracker) );

    mmConverter.convertAudio(request);
   
    fileInfo.setConvertedFile( request.getOutFile() );
  }
 
  private void convertImage() throws Exception {
   
    MultimediaConversionRequest request = new MultimediaConversionRequest();
    request.setInFile( fileInfo.getUploadedFile() );
    request.setThumbnailRequested(true);
    request.setProgress( new MultimediaProgressAdaptor(progressId,progressTracker) );

    mmConverter.convertImage(request);
   
    fileInfo.setConvertedFile( request.getOutFile() );
  }
}
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