Example usage for com.google.common.io Closer create

Introduction

In this page you can find the example usage for com.google.common.io Closer create.

Prototype

public static Closer create() 

Source Link

Document

Creates a new Closer .

Usage

From source file:net.myrrix.client.translating.TranslatingClientRecommender.java

private File copyAndTranslateToTempFile(Reader reader) throws IOException {
    File tempFile = File.createTempFile("myrrix-", ".csv.gz");
    tempFile.deleteOnExit();/*from  w  w w. j  a va 2  s. c  o m*/
    log.debug("Translating ingest input to {}", tempFile);
    Closer closer = Closer.create();
    try {
        BufferedReader buffered = closer.register(IOUtils.buffer(reader));
        Writer out = closer.register(IOUtils.buildGZIPWriter(tempFile));
        CharSequence line;
        while ((line = buffered.readLine()) != null) {
            Iterator<String> it = COMMA_SPLIT.split(line).iterator();
            String userIDString = it.next();
            String itemIDString = it.next();
            long longUserID = translateUser(userIDString);
            long longItemID = translateItem(itemIDString);
            String translatedLine;
            if (it.hasNext()) {
                String valueString = it.next();
                translatedLine = COMMA_JOIN.join(longUserID, longItemID, valueString);
            } else {
                translatedLine = COMMA_JOIN.join(longUserID, longItemID);
            }
            out.write(translatedLine);
            out.write('\n');
        }
    } finally {
        closer.close();
    }
    log.debug("Done translating ingest input to {}", tempFile);
    return tempFile;
}

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From source file:com.android.builder.internal.packaging.IncrementalPackager.java

@Override
public void close() throws IOException {
    if (mApkCreator == null) {
        return;//from w w w .ja  va  2s .co  m
    }

    Closer closer = Closer.create();
    try {
        closer.register(mApkCreator);
        closer.register(mDexRenamer);
        mApkCreator = null;
    } finally {
        closer.close();
    }
}

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From source file:io.prestosql.plugin.hive.s3.PrestoS3FileSystem.java

@Override
public void close() throws IOException {
    try (Closer closer = Closer.create()) {
        closer.register(super::close);
        if (credentialsProvider instanceof Closeable) {
            closer.register((Closeable) credentialsProvider);
        }/*w ww  .  j a va2s  .  co  m*/
        closer.register(s3::shutdown);
    }
}

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From source file:org.apache.gobblin.runtime.JobLauncherTestHelper.java

public void runTestWithCommitSuccessfulTasksPolicy(Properties jobProps) throws Exception {
    String jobName = jobProps.getProperty(ConfigurationKeys.JOB_NAME_KEY);
    String jobId = JobLauncherUtils.newJobId(jobName).toString();
    jobProps.setProperty(ConfigurationKeys.JOB_ID_KEY, jobId);
    jobProps.setProperty(ConfigurationKeys.PUBLISH_DATA_AT_JOB_LEVEL, Boolean.FALSE.toString());
    jobProps.setProperty(ConfigurationKeys.JOB_COMMIT_POLICY_KEY, "successful");
    jobProps.setProperty(ConfigurationKeys.SOURCE_CLASS_KEY, TestSourceWithFaultyExtractor.class.getName());
    jobProps.setProperty(ConfigurationKeys.MAX_TASK_RETRIES_KEY, "0");

    Closer closer = Closer.create();
    try {//w w w  . ja va 2 s.c om
        JobLauncher jobLauncher = closer
                .register(JobLauncherFactory.newJobLauncher(this.launcherProps, jobProps));
        jobLauncher.launchJob(null);
    } finally {
        closer.close();
    }

    List<JobState.DatasetState> datasetStateList = this.datasetStateStore.getAll(jobName,
            sanitizeJobNameForDatasetStore(jobId) + ".jst");
    JobState jobState = datasetStateList.get(0);

    Assert.assertEquals(jobState.getState(), JobState.RunningState.COMMITTED);
    Assert.assertEquals(jobState.getCompletedTasks(), 4);
    for (TaskState taskState : jobState.getTaskStates()) {
        if (taskState.getTaskId().endsWith("0")) {
            Assert.assertEquals(taskState.getWorkingState(), WorkUnitState.WorkingState.FAILED);
        } else {
            Assert.assertEquals(taskState.getWorkingState(), WorkUnitState.WorkingState.COMMITTED);
            Assert.assertEquals(taskState.getPropAsLong(ConfigurationKeys.WRITER_RECORDS_WRITTEN),
                    TestExtractor.TOTAL_RECORDS);
        }
    }
}

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From source file:gobblin.runtime.SafeDatasetCommit.java

@SuppressWarnings("unchecked")
private Optional<CommitSequence.Builder> generateCommitSequenceBuilder(JobState.DatasetState datasetState,
        Collection<TaskState> taskStates) {
    try (Closer closer = Closer.create()) {
        Class<? extends CommitSequencePublisher> dataPublisherClass = (Class<? extends CommitSequencePublisher>) Class
                .forName(datasetState.getProp(ConfigurationKeys.DATA_PUBLISHER_TYPE,
                        ConfigurationKeys.DEFAULT_DATA_PUBLISHER_TYPE));
        CommitSequencePublisher publisher = (CommitSequencePublisher) closer
                .register(DataPublisher.getInstance(dataPublisherClass, this.jobContext.getJobState()));
        publisher.publish(taskStates);// ww w. j  a  va  2  s .  c  om
        return publisher.getCommitSequenceBuilder();
    } catch (Throwable t) {
        log.error("Failed to generate commit sequence", t);
        setTaskFailureException(datasetState.getTaskStates(), t);
        throw Throwables.propagate(t);
    }
}

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From source file:com.facebook.buck.android.exopackage.ExopackageInstaller.java

private void installMetadata(ImmutableMap<Path, String> metadataToInstall) throws Exception {
    try (Closer closer = Closer.create()) {
        Map<Path, Path> filesToInstall = new HashMap<>();
        for (Map.Entry<Path, String> entry : metadataToInstall.entrySet()) {
            NamedTemporaryFile temp = closer.register(new NamedTemporaryFile("metadata", "tmp"));
            com.google.common.io.Files.write(entry.getValue().getBytes(Charsets.UTF_8), temp.get().toFile());
            filesToInstall.put(entry.getKey(), temp.get());
        }/*from w w w.  j a  v a  2s  .c om*/
        installFiles("metadata", ImmutableMap.copyOf(filesToInstall));
    }
}

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From source file:org.glowroot.local.ui.ClasspathCache.java

private static void loadClassNamesFromJarFile(File jarFile, Multimap<String, File> newClassNameLocations)
        throws IOException {
    Closer closer = Closer.create();
    InputStream s = new FileInputStream(jarFile);
    JarInputStream jarIn = closer.register(new JarInputStream(s));
    try {//from   w w w  .  ja v  a2 s  .c  o  m
        loadClassNamesFromManifestClassPath(jarIn, jarFile, newClassNameLocations);
        loadClassNamesFromJarInputStream(jarIn, jarFile, newClassNameLocations);
    } catch (Throwable t) {
        throw closer.rethrow(t);
    } finally {
        closer.close();
    }
}

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From source file:org.grouplens.lenskit.eval.traintest.TrainTestEvalTask.java

/**
 * Run the evaluation on the train test data source files
 *
 * @return The summary output table./*  w  ww.  j a v  a  2s  . com*/
 * @throws org.grouplens.lenskit.eval.TaskExecutionException
 *          Failure of the evaluation
 */
@Override
@SuppressWarnings("PMD.AvoidCatchingThrowable")
public Table perform() throws TaskExecutionException, InterruptedException {
    try {
        experiments = createExperimentSuite();
        measurements = createMeasurementSuite();
        layout = ExperimentOutputLayout.create(experiments, measurements);
        TableBuilder resultsBuilder = new TableBuilder(layout.getResultsLayout());

        logger.info("Starting evaluation of {} algorithms ({} from LensKit) on {} data sets",
                Iterables.size(experiments.getAllAlgorithms()), experiments.getAlgorithms().size(),
                experiments.getDataSets().size());
        Closer closer = Closer.create();

        try {
            outputs = openExperimentOutputs(layout, measurements, resultsBuilder, closer);
            DAGNode<JobGraph.Node, JobGraph.Edge> jobGraph;
            try {
                jobGraph = makeJobGraph(experiments);
            } catch (RecommenderConfigurationException ex) {
                throw new TaskExecutionException("Recommender configuration error", ex);
            }
            if (taskGraphFile != null) {
                logger.info("writing task graph to {}", taskGraphFile);
                JobGraph.writeGraphDescription(jobGraph, taskGraphFile);
            }
            registerTaskListener(jobGraph);

            // tell all metrics to get started
            runEvaluations(jobGraph);
        } catch (Throwable th) {
            throw closer.rethrow(th, TaskExecutionException.class, InterruptedException.class);
        } finally {
            closer.close();
        }

        logger.info("evaluation {} completed", getName());

        return resultsBuilder.build();
    } catch (IOException e) {
        throw new TaskExecutionException("I/O error", e);
    } finally {
        experiments = null;
        measurements = null;
        outputs = null;
        layout = null;
    }
}

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From source file:org.grouplens.lenskit.eval.data.crossfold.CrossfoldTask.java

/**
 * Write train-test split files//from w ww.j a  v  a 2  s  .co  m
 *
 * @throws IOException if there is an error writing the files.
 */
@SuppressWarnings("PMD.AvoidCatchingThrowable")
protected void createTTFiles() throws IOException {
    File[] trainFiles = getFiles(getTrainPattern());
    File[] testFiles = getFiles(getTestPattern());
    RatingWriter[] trainWriters = new RatingWriter[partitionCount];
    RatingWriter[] testWriters = new RatingWriter[partitionCount];
    Closer closer = Closer.create();
    try {
        for (int i = 0; i < partitionCount; i++) {
            File train = trainFiles[i];
            File test = testFiles[i];
            trainWriters[i] = closer.register(makeWriter(train));
            testWriters[i] = closer.register(makeWriter(test));
        }
        switch (method) {
        case PARTITION_USERS:
        case SAMPLE_USERS:
            writeTTFilesByUsers(trainWriters, testWriters);
            break;
        case PARTITION_RATINGS:
            writeTTFilesByRatings(trainWriters, testWriters);
            break;
        }
    } catch (Throwable th) {
        throw closer.rethrow(th);
    } finally {
        closer.close();
    }
}

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From source file:net.sf.diningout.app.RestaurantService.java

/**
 * Download the photo at the URL and save it to disk.
 *
 * @return ETag header value, if available
 *//*from  w w  w .ja  v a 2s . c  o  m*/
private static String photo(long id, final long restaurantId, String url) throws IOException {
    File file = RestaurantPhotos.file(id, restaurantId);
    if (file == null) {
        return null;
    }
    Files.createParentDirs(file);
    File part = new File(file.getParentFile(), file.getName() + DOT_PART);
    URLConnection con = HttpClient.openConnection(url);
    Closer closer = Closer.create();
    try {
        ByteStreams.copy(closer.register(con.getInputStream()), closer.register(new FileOutputStream(part)));
    } catch (Throwable e) {
        throw closer.rethrow(e);
    } finally {
        closer.close();
    }
    part.renameTo(file);
    /* notify observers about new photo */
    new Handler(Looper.getMainLooper()).postDelayed(new Runnable() {
        @Override
        public void run() {
            cr().notifyChange(ContentUris.withAppendedId(Restaurants.CONTENT_URI, restaurantId), null, false);
        }
    }, 500L); // when the file will hopefully already be flushed to disk
    context().startService(new Intent(context(), RestaurantColorService.class)
            .putExtra(RestaurantColorService.EXTRA_ID, restaurantId));
    return con.getHeaderField("ETag");
}

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