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:org.waveprotocol.box.server.persistence.blocks.impl.SegmentOperationImpl.java

public SegmentOperationImpl(ImmutableList<? extends WaveletOperation> operations) {
    Preconditions.checkArgument(!operations.isEmpty(), "No operations");
    rawOperation = new RawOperation(GsonSerializer.OPERATION_SERIALIZER, operations,
            operations.get(operations.size() - 1).getContext());
}

From source file:com.facebook.buck.cxx.ArchiveStep.java

@Override
public StepExecutionResult execute(ExecutionContext context) throws IOException, InterruptedException {
    ImmutableList<String> allInputs = getAllInputs();
    if (allInputs.isEmpty()) {
        filesystem.writeContentsToPath("!<arch>\n", output);
        return StepExecutionResult.SUCCESS;
    } else {// w w w . j a  va  2 s  .c  om
        ImmutableList<String> archiveCommandPrefix = ImmutableList.<String>builder().addAll(archiverCommand)
                .addAll(archiverFlags).addAll(archiverExtraFlags).addAll(archiver.outputArgs(output.toString()))
                .build();
        CommandSplitter commandSplitter = new CommandSplitter(archiveCommandPrefix);
        for (ImmutableList<String> command : commandSplitter.getCommandsForArguments(allInputs)) {
            ProcessExecutor.Result result = runArchiver(context, command);
            if (result.getExitCode() != 0) {
                return StepExecutionResult.of(result);
            }
        }
        return StepExecutionResult.SUCCESS;
    }
}

From source file:com.google.shipshape.analyzers.JavacAnalyzer.java

@Override
public ImmutableList<Note> analyze(ShipshapeContext shipshapeContext, JavaCompilationDetails details)
        throws AnalyzerException {
    ImmutableList.Builder<Note> notes = new ImmutableList.Builder<>();

    if (details.getAnalysisCrash() != null) {
        throw new AnalyzerException(getCategory(), shipshapeContext, "Exception from javac",
                details.getAnalysisCrash());
    }/*  w  w w.  j  a v a 2  s  . c o m*/

    ImmutableList<CompilationUnitTree> asts = ImmutableList.copyOf(details.getAsts());

    if (asts.isEmpty()) {
        logger.info(
                "No ASTs found to process for compilation unit "
                        + details.getCompilationUnit().getVName().getSignature(),
                shipshapeContext, getCategory());
    }

    for (CompilationUnitTree file : asts) {
        URI uri = file.getSourceFile().toUri();
        String path = getPathRelativeToRoot(shipshapeContext, uri);
        logger.info("Investigating file " + path, shipshapeContext, getCategory());
        if (path == null) {
            String msg = String.format("The provided path %s was invalid for root %s", path,
                    shipshapeContext.getRepoRoot());
            throw new AnalyzerException(getCategory(), shipshapeContext, msg);
        }
        if (isRelevantJavaFile(shipshapeContext, path)) {
            logger.info("Analyzing file " + path, shipshapeContext, getCategory());
            notes.addAll(analyzeFile(shipshapeContext, details, file, path));
        }
    }
    return notes.build();
}

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

/**
 * @return Statuses that allow BuildRuleFinished events to be logged to Scribe. Will return a
 *     subset of https://fburl.com/m4o5p1mg
 *//*from  w ww  .jav  a  2  s.c o m*/
@Value.Lazy
public Iterable<String> getEnabledBuildRuleFinishedStatuses() {
    ImmutableList<String> list = getDelegate().getListWithoutComments(BUILDFILE_SECTION_NAME,
            "enabled_build_rule_finished_statuses");
    return list.isEmpty() ? ImmutableList.of("FAIL") : list;
}

From source file:org.summer.dsl.builder.impl.RegistryBuilderParticipant.java

public void build(IBuildContext buildContext, IProgressMonitor monitor) throws CoreException {
    ImmutableList<IXtextBuilderParticipant> participants = getParticipants();
    if (participants.isEmpty())
        return;/*from   w  w w.  ja  v a  2 s  . c  o  m*/
    SubMonitor progress = SubMonitor.convert(monitor, participants.size());
    progress.subTask(Messages.RegistryBuilderParticipant_InvokingBuildParticipants);
    for (IXtextBuilderParticipant participant : participants) {
        if (progress.isCanceled())
            throw new OperationCanceledException();
        participant.build(buildContext, progress.newChild(1));
    }
}

From source file:com.goodow.realtime.server.rpc.DeltaHandler.java

boolean fetchDeltas(JsonObject obj, ObjectId key, long version, Long endVersion)
        throws IOException, SlobNotFoundException, AccessDeniedException {
    SlobStore store = slobFacilities.getSlobStore();
    HistoryResult history = store.loadHistory(key, version, endVersion);
    ImmutableList<Delta<String>> data = history.getData();
    obj.add(Params.DELTAS, serializeDeltas(version, data));
    if (data.isEmpty()) {
        return true;
    }//from w w  w. j a  va  2 s  .c  o  m
    if (history.hasMore()) {
        obj.addProperty(Params.HAS_MORE, history.hasMore());
    }
    return false;
}

From source file:com.facebook.buck.features.zip.rules.ZipFileDescription.java

@Override
public Zip createBuildRule(BuildRuleCreationContextWithTargetGraph context, BuildTarget buildTarget,
        BuildRuleParams params, ZipFileDescriptionArg args) {

    ImmutableList<SourcePath> zipSources = args.getZipSrcs();
    Optional<Boolean> mergeSourceZips = args.getMergeSourceZips();

    if (!zipSources.isEmpty() && mergeSourceZips.isPresent())
        throw new IllegalArgumentException(
                "Illegal to define merge_source_zips when zip_srcs is present in " + buildTarget);

    return new Zip(new SourcePathRuleFinder(context.getActionGraphBuilder()), buildTarget,
            context.getProjectFilesystem(), args.getOut(), args.getSrcs(), zipSources, args.getFlatten(),
            mergeSourceZips, args.getEntriesToExclude());
}

From source file:org.apache.james.dlp.eventsourcing.aggregates.DLPDomainConfiguration.java

public List<Event> clear() {
    ImmutableList<DLPConfigurationItem> rules = retrieveRules().getItems();
    if (!rules.isEmpty()) {
        ImmutableList<Event> events = ImmutableList
                .of(new ConfigurationItemsRemoved(aggregateId, history.getNextEventId(), rules));
        events.forEach(this::apply);
        return events;
    } else {//from  w  w  w  .  j  a  va 2s  .  c o m
        return ImmutableList.of();
    }
}

From source file:com.google.devtools.build.skyframe.CycleDeduper.java

/**
 * Marks a non-empty list representing a cycle of unique values as being seen and returns true
 * iff the cycle hasn't been seen before, accounting for logical equivalence of cycles.
 *
 * For example, the cycle 'a' -> 'b' -> 'c' -> 'a' is represented by the list ['a', 'b', 'c']
 * and is logically equivalent to the cycle represented by the list ['b', 'c', 'a'].
 *//*from ww  w  . ja v a  2  s  .  c om*/
public boolean seen(ImmutableList<T> cycle) {
    ImmutableSet<T> cycleMembers = ImmutableSet.copyOf(cycle);
    Preconditions.checkState(!cycle.isEmpty());
    Preconditions.checkState(cycle.size() == cycleMembers.size(),
            "cycle doesn't have unique members: " + cycle);

    if (knownCyclesByMembers.containsEntry(cycleMembers, cycle)) {
        return false;
    }

    // Of the C cycles, suppose there are D cycles that have the same members (but are in an
    // incompatible order). This code path takes O(D * L) time. The common case is that D is
    // very small.
    boolean found = false;
    for (ImmutableList<T> candidateCycle : knownCyclesByMembers.get(cycleMembers)) {
        int startPos = candidateCycle.indexOf(cycle.get(0));
        // The use of a multimap keyed by cycle members guarantees that the first element of 'cycle'
        // is present in 'candidateCycle'.
        Preconditions.checkState(startPos >= 0);
        if (equalsWithSingleLoopFrom(cycle, candidateCycle, startPos)) {
            found = true;
            break;
        }
    }
    // We add the cycle even if it's a duplicate so that future exact copies of this can be
    // processed in O(L) time. We are already using O(CL) memory, and this optimization doesn't
    // change that.
    knownCyclesByMembers.put(cycleMembers, cycle);
    return !found;
}

From source file:com.facebook.buck.util.network.AbstractBatchingLogger.java

private ListenableFuture<Void> sendBatch() {
    ImmutableList<BatchEntry> toSend = batch.build();
    batch = ImmutableList.builder();/*from   w  w w.  ja v  a 2  s  . c  o  m*/
    currentBatchSize = 0;
    if (toSend.isEmpty()) {
        return Futures.immediateFuture(null);
    } else {
        return logMultiple(toSend);
    }
}