Example usage for com.google.common.collect ImmutableList isEmpty

Introduction

In this page you can find the example usage for com.google.common.collect ImmutableList isEmpty.

Prototype

boolean isEmpty();

Source Link

Document

Returns true if this list contains no elements.

Usage

From source file:com.opengamma.strata.collect.io.CsvIterator.java

/**
 * Checks whether there is another row in the CSV file.
 * // w w w.  ja v a 2  s.c  o m
 * @return true if there is another row, false if not
 * @throws UncheckedIOException if an IO exception occurs
 * @throws IllegalArgumentException if the file cannot be parsed
 */
@Override
public boolean hasNext() {
    if (nextRow != null) {
        return true;
    } else {
        String line = null;
        while ((line = Unchecked.wrap(() -> reader.readLine())) != null) {
            ImmutableList<String> fields = CsvFile.parseLine(line, separator);
            if (!fields.isEmpty()) {
                nextRow = new CsvRow(headers, searchHeaders, fields);
                return true;
            }
        }
        return false;
    }
}

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From source file:org.apache.james.jmap.methods.SetFilterMethod.java

private void ensureNoMultipleMailboxesRules(ImmutableList<Rule> rules) throws MultipleMailboxIdException {
    ImmutableList<Rule.Id> idWithMultipleMailboxes = rules.stream()
            .filter(rule -> rule.getAction().getAppendInMailboxes().getMailboxIds().size() > 1).map(Rule::getId)
            .collect(ImmutableList.toImmutableList());

    if (!idWithMultipleMailboxes.isEmpty()) {
        throw new MultipleMailboxIdException(idWithMultipleMailboxes);
    }//from  w  w  w. j  a v a  2 s.  c o m
}

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From source file:net.bunselmeyer.mongo.maven.plugin.MigrateMojo.java

public void execute() throws MojoExecutionException {

    if (StringUtils.isBlank(host)) {
        host = "localhost";
    }/*from   w w w . j  a  va 2 s.  c  o m*/

    Set<Class<? extends Migration>> allMigrations = scanProjectForMigrations();

    ImmutableListMultimap<MIGRATION_CHECK, MigrationDetails> statusIndex = buildStatusIndex(allMigrations);

    ImmutableList<MigrationDetails> errors = statusIndex.get(MIGRATION_CHECK.ERROR);
    if (!errors.isEmpty()) {
        getLog().error("Fail: Please correct the following issues...");
        for (MigrationDetails error : errors) {
            getLog().error("    " + error.migration.getName() + ": " + error.message);
        }
        return;
    }

    ImmutableList<MigrationDetails> warnings = statusIndex.get(MIGRATION_CHECK.WARNING);
    if (!warnings.isEmpty()) {
        getLog().warn("Warnings...");
        for (MigrationDetails warning : warnings) {
            getLog().warn("    " + warning.migration.getName() + ": " + warning.message);
        }
    }

    ImmutableList<MigrationDetails> goodMigrations = statusIndex.get(MIGRATION_CHECK.GOOD);

    getLog().info("Found " + goodMigrations.size() + " migrations.");

    ImmutableListMultimap<String, MigrationDetails> index = buildIndex(goodMigrations);

    List<String> keys = Lists.newArrayList(index.keySet());
    Collections.sort(keys);

    for (String connectionDef : keys) {
        runMigrations(Lists.newArrayList(index.get(connectionDef)));
    }
}

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From source file:org.elasticsearch.action.admin.cluster.snapshots.status.TransportSnapshotsStatusAction.java

@Override
protected void masterOperation(final SnapshotsStatusRequest request, final ClusterState state,
        final ActionListener<SnapshotsStatusResponse> listener) throws ElasticsearchException {
    ImmutableList<SnapshotMetaData.Entry> currentSnapshots = snapshotsService
            .currentSnapshots(request.repository(), request.snapshots());

    if (currentSnapshots.isEmpty()) {
        listener.onResponse(buildResponse(request, currentSnapshots, null));
        return;// w  ww. ja  v a2s .  c  o m
    }

    Set<String> nodesIds = newHashSet();
    for (SnapshotMetaData.Entry entry : currentSnapshots) {
        for (SnapshotMetaData.ShardSnapshotStatus status : entry.shards().values()) {
            if (status.nodeId() != null) {
                nodesIds.add(status.nodeId());
            }
        }
    }

    if (!nodesIds.isEmpty()) {
        // There are still some snapshots running - check their progress
        SnapshotId[] snapshotIds = new SnapshotId[currentSnapshots.size()];
        for (int i = 0; i < currentSnapshots.size(); i++) {
            snapshotIds[i] = currentSnapshots.get(i).snapshotId();
        }

        transportNodesSnapshotsStatus.status(nodesIds.toArray(new String[nodesIds.size()]), snapshotIds,
                request.masterNodeTimeout(),
                new ActionListener<TransportNodesSnapshotsStatus.NodesSnapshotStatus>() {
                    @Override
                    public void onResponse(
                            TransportNodesSnapshotsStatus.NodesSnapshotStatus nodeSnapshotStatuses) {
                        try {
                            ImmutableList<SnapshotMetaData.Entry> currentSnapshots = snapshotsService
                                    .currentSnapshots(request.repository(), request.snapshots());
                            listener.onResponse(buildResponse(request, currentSnapshots, nodeSnapshotStatuses));
                        } catch (Throwable e) {
                            listener.onFailure(e);
                        }
                    }

                    @Override
                    public void onFailure(Throwable e) {
                        listener.onFailure(e);
                    }
                });
    } else {
        // We don't have any in-progress shards, just return current stats
        listener.onResponse(buildResponse(request, currentSnapshots, null));
    }

}

---

From source file:org.apache.james.transport.mailets.RecipientRewriteTableProcessor.java

private void forwardToRemoteAddress(MailAddress sender, MailAddress recipient, MimeMessage message,
        ImmutableList<MailAddress> mailAddresses) throws MessagingException {
    ImmutableList<MailAddress> remoteAddress = FluentIterable.from(mailAddresses).filter(isNotLocalServer())
            .toList();/* w ww.  ja va 2  s .c o  m*/

    if (!remoteAddress.isEmpty()) {
        try {
            mailetContext.sendMail(sender, remoteAddress, message);
            mailetContext.log(LogLevel.INFO, "Mail for " + recipient + " forwarded to " + remoteAddress);
        } catch (MessagingException ex) {
            mailetContext.log(LogLevel.WARN, "Error forwarding mail to " + remoteAddress);
        }
    }
}

---

From source file:com.google.devtools.build.lib.rules.java.JavaBuildInfoFactory.java

private WriteBuildInfoPropertiesAction getHeader(BuildInfoContext context, BuildConfiguration config,
        PathFragment propertyFileName, ImmutableList<Artifact> inputs, BuildInfoPropertiesTranslator translator,
        boolean includeVolatile, boolean includeNonVolatile) {
    Root outputPath = config.getIncludeDirectory(RepositoryName.MAIN);
    final Artifact output = context.getBuildInfoArtifact(propertyFileName, outputPath,
            includeVolatile && !inputs.isEmpty() ? BuildInfoType.NO_REBUILD
                    : BuildInfoType.FORCE_REBUILD_IF_CHANGED);
    return new WriteBuildInfoPropertiesAction(inputs, output, translator, includeVolatile, includeNonVolatile,
            getTimestampFormatter());/*from   w  ww. java2  s  .  c  om*/
}

---

From source file:com.facebook.buck.event.listener.RenderingConsole.java

@VisibleForTesting
synchronized void render() {
    LOG.verbose("Rendering");
    int previousNumLinesPrinted = lastNumLinesPrinted;
    ImmutableList<String> lines = delegate.createSuperLinesAtTime(clock.currentTimeMillis());
    boolean shouldRender = isRendering() && (previousNumLinesPrinted != 0 || !lines.isEmpty());

    ImmutableList.Builder<String> logLines = ImmutableList.builder();
    String line;/*from   ww w .jav a 2 s .  co  m*/
    while ((line = pendingLogLines.poll()) != null) {
        logLines.add(line);
        shouldRender = true;
    }
    lastNumLinesPrinted = lines.size();

    // Synchronize on the DirtyPrintStreamDecorator to prevent interlacing of output.
    // We don't log immediately so we avoid locking the console handler to avoid deadlocks.
    boolean stderrDirty;
    boolean stdoutDirty;
    // TODO(cjhopman): This synchronization is likely useless.
    synchronized (console.getStdErr()) {
        synchronized (console.getStdOut()) {
            // If another source has written to stderr, stop rendering with the SuperConsole.
            // We need to do this to keep our updates consistent. We don't do this with stdout
            // because we don't use it directly except in a couple of cases, where the
            // synchronization in DirtyPrintStreamDecorator should be sufficient

            // TODO(cjhopman): We should probably only stop rendering the super lines and continue
            // rendering log lines.
            stderrDirty = console.getStdErr().isDirty();
            stdoutDirty = console.getStdOut().isDirty();
            if (stderrDirty || stdoutDirty) {
                stopRenderScheduler();
            } else if (shouldRender) {
                String fullFrame = renderFullFrame(logLines.build(), lines, previousNumLinesPrinted);
                console.getStdErr().getRawStream().print(fullFrame);
            }
        }
    }
    if (stderrDirty) {
        LOG.debug("Stopping console output (stderr was dirty).");
    }
}

---

From source file:com.google.caliper.options.ParsedOptions.java

@Leftovers
private void setLeftovers(ImmutableList<String> leftovers) throws InvalidCommandException {
    if (leftovers.isEmpty()) {
        throw new InvalidCommandException("No benchmark class specified");
    }/*from w w w .  jav a 2  s . c  o  m*/
    if (leftovers.size() > 1) {
        throw new InvalidCommandException("Extra stuff, expected only class name: " + leftovers);
    }
    this.benchmarkClassName = leftovers.get(0);
}

---

From source file:com.amazonaws.services.kinesis.stormspout.KinesisSpout.java

@Override
public void nextTuple() {
    synchronized (stateManager) {
        // Task has no assignments.
        if (!stateManager.hasGetters()) {
            // Sleep here for a bit, so we don't consume too much cpu.
            try {
                Thread.sleep(emptyRecordListSleepTimeMillis);
            } catch (InterruptedException e) {
                LOG.debug(this + " sleep was interrupted.");
            }/*w w  w  .  j  a v  a  2 s .c  o  m*/
            return;
        }

        final IShardGetter getter = stateManager.getNextGetter();
        String currentShardId = getter.getAssociatedShard();
        Record rec = null;
        boolean isRetry = false;

        if (stateManager.shouldRetry(currentShardId)) {
            safeMetricIncrement(retryCount);
            rec = stateManager.recordToRetry(currentShardId);
            if (LOG.isDebugEnabled()) {
                LOG.debug("ShardId " + currentShardId + ": Re-emitting record with partition key "
                        + rec.getPartitionKey() + ", sequence number " + rec.getSequenceNumber());
            }
            isRetry = true;
        } else {
            final Records records = getter.getNext(1);

            if (records.getMillisBehindLatest() >= 0) {
                safeMetricAssign(millisBehindLastMetric, records.getMillisBehindLatest());
            }

            final ImmutableList<Record> recordList = records.getRecords();

            if ((recordList != null) && (!recordList.isEmpty())) {
                rec = recordList.get(0);
            }
            if (records.isReshard()) {
                LOG.info(this + " detected reshard event for shard " + currentShardId);
                stateManager.handleReshard();
            }
        }

        if (rec != null) {
            // Copy record (ByteBuffer.duplicate()) so bolts in the same JVM don't affect the object (e.g. retries)
            Record recordToEmit = copyRecord(rec);
            List<Object> tuple = config.getScheme().deserialize(recordToEmit);
            LOG.info(this + " emitting record with seqnum " + recordToEmit.getSequenceNumber() + " from shard "
                    + currentShardId + " with data: " + tuple);
            collector.emit(tuple,
                    MessageIdUtil.constructMessageId(currentShardId, recordToEmit.getSequenceNumber()));
            stateManager.emit(currentShardId, recordToEmit, isRetry);
        } else {
            // Sleep here for a bit if there were no records to emit.
            try {
                Thread.sleep(emptyRecordListSleepTimeMillis);
            } catch (InterruptedException e) {
                LOG.debug(this + " sleep was interrupted.");
            }
        }

        // Do periodic ZK commit of shard states.
        if (System.currentTimeMillis() - lastCommitTime >= config.getCheckpointIntervalMillis()) {
            LOG.debug(this + " committing local shard states to ZooKeeper.");

            stateManager.commitShardStates();
            lastCommitTime = System.currentTimeMillis();
        } else {
            LOG.debug(this + " Not committing to ZooKeeper.");
        }
    }
}

---

From source file:com.google.devtools.build.lib.packages.RequiredProviders.java

private RequiredProviders(Constraint constraint, ImmutableList<ImmutableSet<Class<?>>> nativeProviders,
        ImmutableList<ImmutableSet<SkylarkProviderIdentifier>> skylarkProviders) {
    this.constraint = constraint;

    Preconditions.checkState(constraint.equals(Constraint.RESTRICTED)
            || (nativeProviders.isEmpty() && skylarkProviders.isEmpty()));

    this.nativeProviders = nativeProviders;
    this.skylarkProviders = skylarkProviders;
}

---

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