/**
* Licensed to The Apereo Foundation under one or more contributor license
* agreements. See the NOTICE file distributed with this work for additional
* information regarding copyright ownership.
*
*
* The Apereo Foundation licenses this file to you 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://opensource.org/licenses/ecl2.txt
*
* 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.opencastproject.textanalyzer.remote;
import org.opencastproject.job.api.Job;
import org.opencastproject.job.api.JobParser;
import org.opencastproject.mediapackage.Attachment;
import org.opencastproject.mediapackage.MediaPackageElementParser;
import org.opencastproject.serviceregistry.api.RemoteBase;
import org.opencastproject.textanalyzer.api.TextAnalyzerException;
import org.opencastproject.textanalyzer.api.TextAnalyzerService;
import org.apache.http.HttpResponse;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.message.BasicNameValuePair;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.List;
public class TextAnalysisRemoteImpl extends RemoteBase implements TextAnalyzerService {
/** The logger */
private static final Logger logger = LoggerFactory.getLogger(TextAnalysisRemoteImpl.class);
public TextAnalysisRemoteImpl() {
super(JOB_TYPE);
}
/**
* {@inheritDoc}
*/
@Override
public Job extract(final Attachment image) throws TextAnalyzerException {
HttpPost post = new HttpPost();
try {
List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>();
params.add(new BasicNameValuePair("image", MediaPackageElementParser.getAsXml(image)));
post.setEntity(new UrlEncodedFormEntity(params));
} catch (Exception e) {
throw new TextAnalyzerException(e);
}
HttpResponse response = null;
try {
response = getResponse(post);
if (response != null) {
try {
Job receipt = JobParser.parseJob(response.getEntity().getContent());
logger.info("Analyzing {} on a remote analysis server", image);
return receipt;
} catch (Exception e) {
throw new TextAnalyzerException("Unable to analyze element '" + image + "' using a remote analysis service",
e);
}
}
} finally {
closeConnection(response);
}
throw new TextAnalyzerException("Unable to analyze element '" + image + "' using a remote analysis service");
}
}