ComposerServiceRemoteImpl.java
/*
* 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.composer.remote;
import org.opencastproject.composer.api.ComposerService;
import org.opencastproject.composer.api.EncoderException;
import org.opencastproject.composer.api.EncodingProfile;
import org.opencastproject.composer.api.EncodingProfileBuilder;
import org.opencastproject.composer.api.EncodingProfileImpl;
import org.opencastproject.composer.api.EncodingProfileList;
import org.opencastproject.composer.api.LaidOutElement;
import org.opencastproject.composer.layout.Dimension;
import org.opencastproject.composer.layout.Serializer;
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.mediapackage.MediaPackageException;
import org.opencastproject.mediapackage.Track;
import org.opencastproject.security.api.TrustedHttpClient;
import org.opencastproject.serviceregistry.api.RemoteBase;
import org.opencastproject.serviceregistry.api.ServiceRegistry;
import org.opencastproject.smil.entity.api.Smil;
import org.opencastproject.util.data.Option;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Map.Entry;
import java.util.stream.Collectors;
/**
* Proxies a set of remote composer services for use as a JVM-local service. Remote services are selected at random.
*/
@Component(
property = {
"service.description=Composer (Encoder) Remote Service Proxy"
},
immediate = true,
service = { ComposerService.class }
)
public class ComposerServiceRemoteImpl extends RemoteBase implements ComposerService {
/** The logger */
private static final Logger logger = LoggerFactory.getLogger(ComposerServiceRemoteImpl.class);
public ComposerServiceRemoteImpl() {
super(JOB_TYPE);
}
/**
* Sets the trusted http client
*
* @param client
*/
@Override
@Reference
public void setTrustedHttpClient(TrustedHttpClient client) {
this.client = client;
}
/**
* Sets the remote service manager.
*
* @param remoteServiceManager
*/
@Override
@Reference
public void setRemoteServiceManager(ServiceRegistry remoteServiceManager) {
this.remoteServiceManager = remoteServiceManager;
}
/**
* {@inheritDoc}
*
* @see org.opencastproject.composer.api.ComposerService#encode(org.opencastproject.mediapackage.Track,
* java.lang.String)
*/
@Override
public Job encode(Track sourceTrack, String profileId) throws EncoderException {
HttpPost post = new HttpPost("/encode");
try {
List<BasicNameValuePair> params = new ArrayList<>();
params.add(new BasicNameValuePair("sourceTrack", MediaPackageElementParser.getAsXml(sourceTrack)));
params.add(new BasicNameValuePair("profileId", profileId));
post.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
} catch (Exception e) {
throw new EncoderException("Unable to assemble a remote composer request for track " + sourceTrack, e);
}
HttpResponse response = null;
try {
response = getResponse(post);
if (response != null) {
String content = EntityUtils.toString(response.getEntity());
Job r = JobParser.parseJob(content);
logger.info("Encoding job {} started on a remote composer", r.getId());
return r;
}
} catch (Exception e) {
throw new EncoderException("Unable to encode track " + sourceTrack + " using a remote composer service", e);
} finally {
closeConnection(response);
}
throw new EncoderException("Unable to encode track " + sourceTrack + " using a remote composer service");
}
/**
* {@inheritDoc}
*/
@Override
public Job parallelEncode(Track sourceTrack, String profileId) throws EncoderException {
HttpPost post = new HttpPost("/parallelencode");
try {
List<BasicNameValuePair> params = new ArrayList<>();
params.add(new BasicNameValuePair("sourceTrack", MediaPackageElementParser.getAsXml(sourceTrack)));
params.add(new BasicNameValuePair("profileId", profileId));
post.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
} catch (Exception e) {
throw new EncoderException("Unable to assemble a remote composer request for track " + sourceTrack, e);
}
HttpResponse response = null;
try {
response = getResponse(post);
if (response != null) {
String content = EntityUtils.toString(response.getEntity());
Job r = JobParser.parseJob(content);
logger.info("Encoding job {} started on a remote composer", r.getId());
return r;
}
} catch (Exception e) {
throw new EncoderException("Unable to encode track " + sourceTrack + " using a remote composer service", e);
} finally {
closeConnection(response);
}
throw new EncoderException("Unable to encode track " + sourceTrack + " using a remote composer service");
}
/**
* {@inheritDoc}
*
* @see org.opencastproject.composer.api.ComposerService#trim(Track, String, long, long)
*/
@Override
public Job trim(Track sourceTrack, String profileId, long start, long duration) throws EncoderException {
HttpPost post = new HttpPost("/trim");
try {
List<BasicNameValuePair> params = new ArrayList<>();
params.add(new BasicNameValuePair("sourceTrack", MediaPackageElementParser.getAsXml(sourceTrack)));
params.add(new BasicNameValuePair("profileId", profileId));
params.add(new BasicNameValuePair("start", Long.toString(start)));
params.add(new BasicNameValuePair("duration", Long.toString(duration)));
post.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
} catch (Exception e) {
throw new EncoderException("Unable to assemble a remote composer request for track " + sourceTrack, e);
}
HttpResponse response = null;
try {
response = getResponse(post);
if (response != null) {
String content = EntityUtils.toString(response.getEntity());
Job r = JobParser.parseJob(content);
logger.info("Trimming job {} started on a remote composer", r.getId());
return r;
}
} catch (Exception e) {
throw new EncoderException("Unable to trim track " + sourceTrack + " using a remote composer service", e);
} finally {
closeConnection(response);
}
throw new EncoderException("Unable to trim track " + sourceTrack + " using a remote composer service");
}
/**
* {@inheritDoc}
*
* @see org.opencastproject.composer.api.ComposerService#mux(org.opencastproject.mediapackage.Track,
* org.opencastproject.mediapackage.Track, java.lang.String)
*/
@Override
public Job mux(Track sourceVideoTrack, Track sourceAudioTrack, String profileId) throws EncoderException {
HttpPost post = new HttpPost("/mux");
try {
List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>();
params.add(new BasicNameValuePair("videoSourceTrack", MediaPackageElementParser.getAsXml(sourceVideoTrack)));
params.add(new BasicNameValuePair("audioSourceTrack", MediaPackageElementParser.getAsXml(sourceAudioTrack)));
params.add(new BasicNameValuePair("profileId", profileId));
post.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
} catch (Exception e) {
throw new EncoderException("Unable to assemble a remote composer request", e);
}
HttpResponse response = null;
try {
response = getResponse(post);
if (response != null) {
String content = EntityUtils.toString(response.getEntity());
Job r = JobParser.parseJob(content);
logger.info("Muxing job {} started on a remote composer", r.getId());
return r;
}
} catch (IOException e) {
throw new EncoderException(e);
} finally {
closeConnection(response);
}
throw new EncoderException("Unable to mux tracks " + sourceVideoTrack + " and " + sourceAudioTrack
+ " using a remote composer");
}
/**
* {@inheritDoc}
*
* @see org.opencastproject.composer.api.ComposerService#getProfile(java.lang.String)
*/
@Override
public EncodingProfile getProfile(String profileId) {
HttpGet get = new HttpGet("/profile/" + profileId + ".xml");
HttpResponse response = null;
try {
response = getResponse(get, HttpStatus.SC_OK, HttpStatus.SC_NOT_FOUND);
if (response != null && response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
return EncodingProfileBuilder.getInstance().parseProfile(response.getEntity().getContent());
} else {
return null;
}
} catch (Exception e) {
throw new RuntimeException(e);
} finally {
closeConnection(response);
}
}
/**
* {@inheritDoc}
*/
@Override
public Job image(Track sourceTrack, String profileId, double... times) throws EncoderException {
HttpPost post = new HttpPost("/image");
try {
List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>();
params.add(new BasicNameValuePair("sourceTrack", MediaPackageElementParser.getAsXml(sourceTrack)));
params.add(new BasicNameValuePair("profileId", profileId));
params.add(new BasicNameValuePair("time", buildTimeArray(times)));
post.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
} catch (Exception e) {
throw new EncoderException(e);
}
HttpResponse response = null;
try {
response = getResponse(post);
if (response != null) {
Job r = JobParser.parseJob(response.getEntity().getContent());
logger.info("Image extraction job {} started on a remote composer", r.getId());
return r;
}
} catch (Exception e) {
throw new EncoderException(e);
} finally {
closeConnection(response);
}
throw new EncoderException("Unable to compose an image from track " + sourceTrack
+ " using the remote composer service proxy");
}
@Override
public List<Attachment> imageSync(Track sourceTrack, String profileId, double... times) throws EncoderException, MediaPackageException {
HttpPost post = new HttpPost("/imagesync");
try {
List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>();
params.add(new BasicNameValuePair("sourceTrack", MediaPackageElementParser.getAsXml(sourceTrack)));
params.add(new BasicNameValuePair("profileId", profileId));
params.add(new BasicNameValuePair("time", buildTimeArray(times)));
post.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
} catch (Exception e) {
throw new EncoderException(e);
}
HttpResponse response = null;
try {
response = getResponse(post);
if (response != null) {
final String xml = IOUtils.toString(response.getEntity().getContent(), Charset.forName("utf-8"));
return MediaPackageElementParser.getArrayFromXml(xml)
.stream().map(e -> (Attachment)e)
.collect(Collectors.toList());
}
} catch (Exception e) {
throw new EncoderException(e);
} finally {
closeConnection(response);
}
throw new EncoderException("Unable to compose an image from track " + sourceTrack
+ " using the remote composer service proxy");
}
/**
* {@inheritDoc}
*
* @see org.opencastproject.composer.api.ComposerService#image(Track, String, Map)
*/
@Override
public Job image(Track sourceTrack, String profileId, Map<String, String> properties) throws EncoderException,
MediaPackageException {
HttpPost post = new HttpPost("/image");
try {
List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>();
params.add(new BasicNameValuePair("sourceTrack", MediaPackageElementParser.getAsXml(sourceTrack)));
params.add(new BasicNameValuePair("profileId", profileId));
if (properties != null)
params.add(new BasicNameValuePair("properties", mapToString(properties)));
post.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
} catch (Exception e) {
throw new EncoderException(e);
}
HttpResponse response = null;
try {
response = getResponse(post);
if (response != null) {
Job r = JobParser.parseJob(response.getEntity().getContent());
logger.info("Image extraction job {} started on a remote composer", r.getId());
return r;
}
} catch (Exception e) {
throw new EncoderException(e);
} finally {
closeConnection(response);
}
throw new EncoderException("Unable to compose an image from track " + sourceTrack
+ " using the remote composer service proxy");
}
/**
* {@inheritDoc}
*
* @see org.opencastproject.composer.api.ComposerService#convertImage(org.opencastproject.mediapackage.Attachment,
* java.lang.String...)
*/
@Override
public Job convertImage(Attachment image, String... profileIds) throws EncoderException, MediaPackageException {
HttpPost post = new HttpPost("/convertimage");
try {
List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>();
params.add(new BasicNameValuePair("sourceImage", MediaPackageElementParser.getAsXml(image)));
params.add(new BasicNameValuePair("profileId", StringUtils.join(profileIds, ',')));
post.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
} catch (Exception e) {
throw new EncoderException(e);
}
HttpResponse response = null;
try {
response = getResponse(post);
if (response != null) {
Job r = JobParser.parseJob(response.getEntity().getContent());
logger.info("Image conversion job {} started on a remote composer", r.getId());
return r;
}
} catch (Exception e) {
throw new EncoderException(e);
} finally {
closeConnection(response);
}
throw new EncoderException("Unable to convert image at " + image + " using the remote composer service proxy");
}
/**
* {@inheritDoc}
*
* @see org.opencastproject.composer.api.ComposerService#convertImageSync(
* org.opencastproject.mediapackage.Attachment, java.lang.String...)
*/
@Override
public List<Attachment> convertImageSync(Attachment image, String... profileIds) throws EncoderException, MediaPackageException {
HttpPost post = new HttpPost("/convertimagesync");
try {
List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>();
params.add(new BasicNameValuePair("sourceImage", MediaPackageElementParser.getAsXml(image)));
params.add(new BasicNameValuePair("profileIds", StringUtils.join(profileIds, ',')));
post.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
} catch (Exception e) {
throw new EncoderException(e);
}
HttpResponse response = null;
try {
response = getResponse(post);
if (response != null) {
final String xml = IOUtils.toString(response.getEntity().getContent(), Charset.forName("utf-8"));
return MediaPackageElementParser.getArrayFromXml(xml).stream().map(a -> (Attachment) a).collect(Collectors.toList());
}
} catch (Exception e) {
throw new EncoderException(e);
} finally {
closeConnection(response);
}
throw new EncoderException("Unable to convert image at " + image + " using the remote composer service proxy");
}
/**
* {@inheritDoc}
*
* @see org.opencastproject.composer.api.ComposerService#listProfiles()
*/
@Override
public EncodingProfile[] listProfiles() {
HttpGet get = new HttpGet("/profiles.xml");
HttpResponse response = null;
try {
response = getResponse(get);
if (response != null) {
EncodingProfileList profileList = EncodingProfileBuilder.getInstance().parseProfileList(
response.getEntity().getContent());
List<EncodingProfileImpl> list = profileList.getProfiles();
return list.toArray(new EncodingProfile[list.size()]);
}
} catch (Exception e) {
throw new RuntimeException(
"Unable to list the encoding profiles registered with the remote composer service proxy", e);
} finally {
closeConnection(response);
}
throw new RuntimeException("Unable to list the encoding profiles registered with the remote composer service proxy");
}
/**
* Builds string containing times in seconds separated by comma.
*
* @param times
* time array to be converted to string
* @return string represented specified time array
*/
protected String buildTimeArray(double[] times) {
if (times.length == 0)
return "";
StringBuilder builder = new StringBuilder();
builder.append(Double.toString(times[0]));
for (int i = 1; i < times.length; i++) {
builder.append(";" + Double.toString(times[i]));
}
return builder.toString();
}
@Override
public Job composite(Dimension compositeTrackSize, Option<LaidOutElement<Track>> upperTrack,
LaidOutElement<Track> lowerTrack, Option<LaidOutElement<Attachment>> watermark, String profileId,
String background, String sourceAudioName) throws EncoderException, MediaPackageException {
HttpPost post = new HttpPost("/composite");
try {
List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>();
params.add(new BasicNameValuePair("compositeSize", Serializer.json(compositeTrackSize).toJson()));
params.add(new BasicNameValuePair("lowerTrack", MediaPackageElementParser.getAsXml(lowerTrack.getElement())));
params.add(new BasicNameValuePair("lowerLayout", Serializer.json(lowerTrack.getLayout()).toJson()));
if (upperTrack.isSome()) {
params.add(new BasicNameValuePair("upperTrack", MediaPackageElementParser.getAsXml(upperTrack.get()
.getElement())));
params.add(new BasicNameValuePair("upperLayout", Serializer.json(upperTrack.get().getLayout()).toJson()));
}
if (watermark.isSome()) {
params.add(new BasicNameValuePair("watermarkAttachment", MediaPackageElementParser.getAsXml(watermark.get()
.getElement())));
params.add(new BasicNameValuePair("watermarkLayout", Serializer.json(watermark.get().getLayout()).toJson()));
}
params.add(new BasicNameValuePair("profileId", profileId));
params.add(new BasicNameValuePair("background", background));
params.add(new BasicNameValuePair("sourceAudioName", sourceAudioName));
post.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
} catch (Exception e) {
throw new EncoderException(e);
}
HttpResponse response = null;
try {
response = getResponse(post);
if (response != null) {
Job r = JobParser.parseJob(response.getEntity().getContent());
logger.info("Composite video job {} started on a remote composer", r.getId());
return r;
}
} catch (Exception e) {
throw new EncoderException(e);
} finally {
closeConnection(response);
}
if (upperTrack.isSome()) {
throw new EncoderException("Unable to composite video from track " + lowerTrack.getElement() + " and "
+ upperTrack.get().getElement() + " using the remote composer service proxy");
} else {
throw new EncoderException("Unable to composite video from track " + lowerTrack.getElement()
+ " using the remote composer service proxy");
}
}
@Override
public Job concat(String profileId, Dimension outputDimension, boolean sameCodec, Track... tracks)
throws EncoderException, MediaPackageException {
return concat(profileId, outputDimension, -1.0f, sameCodec, tracks);
}
@Override
public Job concat(String profileId, Dimension outputDimension, float outputFrameRate, boolean sameCodec,
Track... tracks)
throws EncoderException, MediaPackageException {
HttpPost post = new HttpPost("/concat");
try {
List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>();
params.add(new BasicNameValuePair("profileId", profileId));
if (outputDimension != null)
params.add(new BasicNameValuePair("outputDimension", Serializer.json(outputDimension).toJson()));
params.add(new BasicNameValuePair("outputFrameRate", String.format(Locale.US, "%f", outputFrameRate)));
params.add(new BasicNameValuePair("sourceTracks", MediaPackageElementParser.getArrayAsXml(Arrays.asList(tracks))));
if (sameCodec)
params.add(new BasicNameValuePair("sameCodec", "true"));
post.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
} catch (Exception e) {
throw new EncoderException(e);
}
HttpResponse response = null;
try {
response = getResponse(post);
if (response != null) {
Job r = JobParser.parseJob(response.getEntity().getContent());
logger.info("Concat video job {} started on a remote composer", r.getId());
return r;
}
} catch (Exception e) {
throw new EncoderException(e);
} finally {
closeConnection(response);
}
throw new EncoderException("Unable to concat videos from tracks " + tracks
+ " using the remote composer service proxy");
}
@Override
public Job imageToVideo(Attachment sourceImageAttachment, String profileId, double time) throws EncoderException,
MediaPackageException {
HttpPost post = new HttpPost("/imagetovideo");
try {
List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>();
params.add(new BasicNameValuePair("sourceAttachment", MediaPackageElementParser.getAsXml(sourceImageAttachment)));
params.add(new BasicNameValuePair("profileId", profileId));
params.add(new BasicNameValuePair("time", Double.toString(time)));
post.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
} catch (Exception e) {
throw new EncoderException(e);
}
HttpResponse response = null;
try {
response = getResponse(post);
if (response != null) {
Job r = JobParser.parseJob(response.getEntity().getContent());
logger.info("Image to video converting job {} started on a remote composer", r.getId());
return r;
}
} catch (Exception e) {
throw new EncoderException(e);
} finally {
closeConnection(response);
}
throw new EncoderException("Unable to convert an image to a video from attachment " + sourceImageAttachment
+ " using the remote composer service proxy");
}
@Override
public Job demux(Track sourceTrack, String profileId) throws EncoderException, MediaPackageException {
HttpPost post = new HttpPost("/demux");
try {
List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>();
params.add(new BasicNameValuePair("sourceTrack", MediaPackageElementParser.getAsXml(sourceTrack)));
params.add(new BasicNameValuePair("profileId", profileId));
post.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
} catch (Exception e) {
throw new EncoderException("Unable to assemble a remote demux request for track " + sourceTrack, e);
}
HttpResponse response = null;
try {
response = getResponse(post);
if (response != null) {
String content = EntityUtils.toString(response.getEntity());
Job r = JobParser.parseJob(content);
logger.info("Demuxing job {} started on a remote service ", r.getId());
return r;
}
} catch (Exception e) {
throw new EncoderException("Unable to demux track " + sourceTrack + " using a remote composer service", e);
} finally {
closeConnection(response);
}
throw new EncoderException("Unable to demux track " + sourceTrack + " using a remote composer service");
}
@Override
public Job processSmil(Smil smil, String trackParamGroupId, String mediaType, List<String> profileIds)
throws EncoderException, MediaPackageException {
HttpPost post = new HttpPost("/processsmil");
try {
List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>();
params.add(new BasicNameValuePair("smilAsXml", smil.toXML()));
params.add(new BasicNameValuePair("trackId", trackParamGroupId));
params.add(new BasicNameValuePair("mediaType", mediaType));
params.add(new BasicNameValuePair("profileIds", StringUtils.join(profileIds, ","))); // comma separated profiles
post.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
} catch (Exception e) {
throw new EncoderException(e);
}
HttpResponse response = null;
try {
response = getResponse(post);
if (response != null) {
Job r = JobParser.parseJob(response.getEntity().getContent());
logger.info("Concat video job {} started on a remote composer", r.getId());
return r;
}
} catch (Exception e) {
throw new EncoderException(e);
} finally {
closeConnection(response);
}
throw new EncoderException("Unable to edit video group(" + trackParamGroupId + ") from smil " + smil
+ " using the remote composer service proxy");
}
@Override
public Job multiEncode(Track sourceTrack, List<String> profileIds) throws EncoderException, MediaPackageException {
HttpPost post = new HttpPost("/multiencode");
try {
List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>();
params.add(new BasicNameValuePair("sourceTrack", MediaPackageElementParser.getAsXml(sourceTrack)));
params.add(new BasicNameValuePair("profileIds", StringUtils.join(profileIds, ","))); // comma separated profiles
post.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
} catch (Exception e) {
throw new EncoderException("Unable to assemble a remote demux request for track " + sourceTrack, e);
}
HttpResponse response = null;
try {
response = getResponse(post);
if (response != null) {
String content = EntityUtils.toString(response.getEntity());
Job job = JobParser.parseJob(content);
logger.info("Encoding job {} started on a remote multiencode", job.getId());
return job;
}
} catch (Exception e) {
throw new EncoderException("Unable to multiencode track " + sourceTrack + " using a remote composer service", e);
} finally {
closeConnection(response);
}
throw new EncoderException("Unable to multiencode track " + sourceTrack + " using a remote composer service");
}
/**
* Converts a Map<String, String> to s key=value\n string, suitable for the properties form parameter expected by the
* workflow rest endpoint.
*
* @param props
* The map of strings
* @return the string representation
*/
private String mapToString(Map<String, String> props) {
StringBuilder sb = new StringBuilder();
for (Entry<String, String> entry : props.entrySet()) {
sb.append(entry.getKey());
sb.append("=");
sb.append(entry.getValue());
sb.append("\n");
}
return sb.toString();
}
}