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

List of usage examples for com.google.common.collect ImmutableList isEmpty

  1. HOME
  2. Java
  3. com.google.common
  4. com.google.common.collect.*
  5. ImmutableList
  6. 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.facebook.buck.versions.AbstractFlavorSearchTargetNodeFinder.java

public Optional<TargetNode<?>> get(BuildTarget target) {

    // If this node is in the graph under the given name, return it.
    TargetNode<?> node = getBuildTargetIndex().get(target);
    if (node != null) {
        return Optional.of(node);
    }//from w  w  w  . j  a v a 2  s.c o  m

    ImmutableSet<ImmutableSet<Flavor>> flavorList = getBaseTargetFlavorMap()
            .get(target.getUnflavoredBuildTarget());
    if (flavorList == null) {
        return Optional.empty();
    }

    // Otherwise, see if this node exists in the graph with a "less" flavored name.  We initially
    // select all targets which contain a subset of the original flavors, which should be sorted by
    // from largest flavor set to smallest.  We then use the first match, and verify the subsequent
    // matches are subsets.
    ImmutableList<ImmutableSet<Flavor>> matches = RichStream.from(flavorList)
            .filter(target.getFlavors()::containsAll).toImmutableList();
    if (!matches.isEmpty()) {
        ImmutableSet<Flavor> firstMatch = matches.get(0);
        for (ImmutableSet<Flavor> subsequentMatch : matches.subList(1, matches.size())) {
            Preconditions
                    .checkState(firstMatch.size() > subsequentMatch.size(),
                            "Expected to find larger flavor lists earlier in the flavor map "
                                    + "index (sizeof(%s) <= sizeof(%s))",
                            firstMatch.size(), subsequentMatch.size());
            Preconditions.checkState(firstMatch.containsAll(subsequentMatch),
                    "Found multiple disjoint flavor matches for %s: %s and %s (from %s)", target, firstMatch,
                    subsequentMatch, matches);
        }
        return Optional.of(Preconditions.checkNotNull(getBaseTargetIndex().get(target.withFlavors(firstMatch)),
                "%s missing in index", target.withFlavors(firstMatch)));
    }

    // Otherwise, return `null` to indicate this node isn't in the target graph.
    return Optional.empty();
}

From source file:com.google.devtools.build.lib.bazel.repository.MavenServerFunction.java

private Map<String, FileValue> getDefaultSettingsFile(BlazeDirectories directories, Environment env)
        throws InterruptedException {
    // The system settings file is at $M2_HOME/conf/settings.xml.
    String m2Home = System.getenv("M2_HOME");
    ImmutableList.Builder<SkyKey> settingsFilesBuilder = ImmutableList.builder();
    SkyKey systemKey = null;//from w w  w.j  av  a 2 s. com
    if (m2Home != null) {
        PathFragment mavenInstallSettings = new PathFragment(m2Home).getRelative("conf/settings.xml");
        systemKey = FileValue.key(RootedPath.toRootedPath(
                directories.getWorkspace().getRelative(mavenInstallSettings), PathFragment.EMPTY_FRAGMENT));
        settingsFilesBuilder.add(systemKey);
    }

    // The user settings file is at $HOME/.m2/settings.xml.
    String userHome = System.getenv("HOME");
    SkyKey userKey = null;
    if (userHome != null) {
        PathFragment userSettings = new PathFragment(userHome).getRelative(".m2/settings.xml");
        userKey = FileValue.key(RootedPath.toRootedPath(directories.getWorkspace().getRelative(userSettings),
                PathFragment.EMPTY_FRAGMENT));
        settingsFilesBuilder.add(userKey);
    }

    ImmutableList<SkyKey> settingsFiles = settingsFilesBuilder.build();
    if (settingsFiles.isEmpty()) {
        return ImmutableMap.of();
    }
    Map<SkyKey, SkyValue> values = env.getValues(settingsFiles);
    ImmutableMap.Builder<String, FileValue> settingsBuilder = ImmutableMap.builder();
    for (Map.Entry<SkyKey, SkyValue> entry : values.entrySet()) {
        if (entry.getValue() == null) {
            return null;
        }
        if (systemKey != null && systemKey.equals(entry.getKey())) {
            settingsBuilder.put(SYSTEM_KEY, (FileValue) entry.getValue());
        } else if (userKey != null && userKey.equals(entry.getKey())) {
            settingsBuilder.put(USER_KEY, (FileValue) entry.getValue());
        }
    }
    return settingsBuilder.build();
}

From source file:com.android.ide.common.blame.Message.java

public Message(@NonNull Kind kind, @NonNull String text, @NonNull String rawMessage,
        @NonNull ImmutableList<SourceFilePosition> positions) {
    mKind = kind;/*from w w w  .  j  ava2s  .c o  m*/
    mText = text;
    mRawMessage = rawMessage;

    if (positions.isEmpty()) {
        mSourceFilePositions = ImmutableList.of(SourceFilePosition.UNKNOWN);
    } else {
        mSourceFilePositions = positions;
    }
}

From source file:de.metas.ui.web.handlingunits.process.WEBUI_M_HU_Pick.java

@Override
protected ProcessPreconditionsResolution checkPreconditionsApplicable() {
    if (HUsToPickViewFactory.WINDOW_ID.equals(getWindowId())) {
        return ProcessPreconditionsResolution.rejectWithInternalReason("not needed in HUsToPick view");
    }/*from   w  w  w  .j a  va2 s.  c  o  m*/

    final ImmutableList<HURow> firstRows = streamHURows().limit(2).collect(ImmutableList.toImmutableList());
    if (firstRows.isEmpty()) {
        // NOTE: we decided to hide this action when there is not available,
        // because we want to cover the requirements of https://github.com/metasfresh/metasfresh-webui-api/issues/683,
        // were we need to hide the action for source HU lines... and does not worth the effort to handle particularly that case.
        return ProcessPreconditionsResolution.rejectWithInternalReason("no eligible HU rows found");
        // return ProcessPreconditionsResolution.reject(msgBL.getTranslatableMsgText(WEBUI_M_HU_Messages.MSG_WEBUI_ONLY_TOP_LEVEL_HU));
    }

    if (firstRows.size() != 1) {
        return ProcessPreconditionsResolution.rejectBecauseNotSingleSelection();
    }

    return ProcessPreconditionsResolution.accept();
}

From source file:com.google.errorprone.refaster.BlockTemplate.java

private Choice<List<BlockTemplateMatch>> matchesStartingAtBeginning(final JCBlock block, final int offset,
        final ImmutableList<? extends StatementTree> statements, final Context context) {
    if (statements.isEmpty()) {
        return Choice.none();
    }// w ww  . ja  va2s . c  om
    final JCStatement firstStatement = (JCStatement) statements.get(0);
    Choice<UnifierWithUnconsumedStatements> choice = Choice
            .of(UnifierWithUnconsumedStatements.create(new Unifier(context), statements));
    for (UStatement templateStatement : templateStatements()) {
        choice = choice.thenChoose(templateStatement);
    }
    return choice.thenChoose(new Function<UnifierWithUnconsumedStatements, Choice<List<BlockTemplateMatch>>>() {
        @Override
        public Choice<List<BlockTemplateMatch>> apply(UnifierWithUnconsumedStatements state) {
            Unifier unifier = state.unifier();
            Inliner inliner = unifier.createInliner();
            try {
                Optional<Unifier> checkedUnifier = typecheck(unifier, inliner, new Warner(firstStatement),
                        expectedTypes(inliner), actualTypes(inliner));
                if (checkedUnifier.isPresent()) {
                    int consumedStatements = statements.size() - state.unconsumedStatements().size();
                    BlockTemplateMatch match = new BlockTemplateMatch(block, checkedUnifier.get(), offset,
                            offset + consumedStatements);
                    return matchesStartingAnywhere(block, offset + consumedStatements,
                            statements.subList(consumedStatements, statements.size()), context)
                                    .transform(prepend(match));
                }
            } catch (CouldNotResolveImportException e) {
                // fall through
            }
            return Choice.none();
        }
    });
}

From source file:org.gradle.internal.component.external.model.DefaultConfigurationMetadata.java

private DefaultConfigurationMetadata withConstraints(boolean constraint) {
    ImmutableList<ModuleDependencyMetadata> configDependencies = getConfigDependencies();
    if (configDependencies.isEmpty()) {
        return this;
    }//from   w ww.  j a v  a2  s .  c o  m
    int count = 0;
    ImmutableList.Builder<ModuleDependencyMetadata> filtered = new ImmutableList.Builder<ModuleDependencyMetadata>();
    for (ModuleDependencyMetadata configDependency : configDependencies) {
        if (configDependency.isConstraint() == constraint) {
            filtered.add(configDependency);
            count++;
        }
    }
    if (count == configDependencies.size()) {
        // Avoid creating a copy if the resulting configuration is identical
        return this;
    }
    return new DefaultConfigurationMetadata(getComponentId(), getName(), isTransitive(), isVisible(),
            getHierarchy(), ImmutableList.copyOf(getArtifacts()), componentMetadataRules, getExcludes(),
            componentLevelAttributes, filtered.build());
}

From source file:org.diorite.firework.FireworkEffect.java

FireworkEffect(final boolean flicker, final boolean trail, final ImmutableList<Color> colors,
        final ImmutableList<Color> fadeColors, final FireworkEffectType type) {
    if (colors.isEmpty()) {
        throw new IllegalStateException("Cannot make FireworkEffect without any color");
    }//from   w  w w  .  jav a2  s.  c  om
    this.flicker = flicker;
    this.trail = trail;
    this.colors = colors;
    this.fadeColors = fadeColors;
    this.type = type;
}

From source file:com.android.ide.common.blame.MessageJsonSerializer.java

@Override
public Message read(JsonReader in) throws IOException {
    in.beginObject();/*from www. ja  va2 s. c  om*/
    Message.Kind kind = Message.Kind.UNKNOWN;
    String text = "";
    String rawMessage = null;
    ImmutableList.Builder<SourceFilePosition> positions = new ImmutableList.Builder<SourceFilePosition>();
    SourceFile legacyFile = SourceFile.UNKNOWN;
    SourcePosition legacyPosition = SourcePosition.UNKNOWN;
    while (in.hasNext()) {
        String name = in.nextName();
        if (name.equals(KIND)) {
            //noinspection StringToUpperCaseOrToLowerCaseWithoutLocale
            Message.Kind theKind = KIND_STRING_ENUM_MAP.inverse().get(in.nextString().toLowerCase());
            kind = (theKind != null) ? theKind : Message.Kind.UNKNOWN;
        } else if (name.equals(TEXT)) {
            text = in.nextString();
        } else if (name.equals(RAW_MESSAGE)) {
            rawMessage = in.nextString();
        } else if (name.equals(SOURCE_FILE_POSITIONS)) {
            switch (in.peek()) {
            case BEGIN_ARRAY:
                in.beginArray();
                while (in.hasNext()) {
                    positions.add(mSourceFilePositionTypeAdapter.read(in));
                }
                in.endArray();
                break;
            case BEGIN_OBJECT:
                positions.add(mSourceFilePositionTypeAdapter.read(in));
                break;
            default:
                in.skipValue();
                break;
            }
        } else if (name.equals(LEGACY_SOURCE_PATH)) {
            legacyFile = new SourceFile(new File(in.nextString()));
        } else if (name.equals(LEGACY_POSITION)) {
            legacyPosition = mSourcePositionTypeAdapter.read(in);
        } else {
            in.skipValue();
        }
    }
    in.endObject();

    if (legacyFile != SourceFile.UNKNOWN || legacyPosition != SourcePosition.UNKNOWN) {
        positions.add(new SourceFilePosition(legacyFile, legacyPosition));
    }
    if (rawMessage == null) {
        rawMessage = text;
    }
    ImmutableList<SourceFilePosition> sourceFilePositions = positions.build();
    if (!sourceFilePositions.isEmpty()) {
        return new Message(kind, text, rawMessage, sourceFilePositions);
    } else {
        return new Message(kind, text, rawMessage, ImmutableList.of(SourceFilePosition.UNKNOWN));
    }
}

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

private boolean hasAttachment(ImmutableList<MessageAttachment> messageAttachments) {
    return !messageAttachments.isEmpty();
}

From source file:com.android.common.ide.common.blame.MessageJsonSerializer.java

@Override
public Message read(JsonReader in) throws IOException {
    in.beginObject();/*from   w  ww. j  a  va 2  s.co  m*/
    Message.Kind kind = Message.Kind.UNKNOWN;
    String text = "";
    String rawMessage = null;
    Optional<String> toolName = Optional.absent();
    ImmutableList.Builder<SourceFilePosition> positions = new ImmutableList.Builder<SourceFilePosition>();
    SourceFile legacyFile = SourceFile.UNKNOWN;
    SourcePosition legacyPosition = SourcePosition.UNKNOWN;
    while (in.hasNext()) {
        String name = in.nextName();
        if (name.equals(KIND)) {
            //noinspection StringToUpperCaseOrToLowerCaseWithoutLocale
            Message.Kind theKind = KIND_STRING_ENUM_MAP.inverse().get(in.nextString().toLowerCase());
            kind = (theKind != null) ? theKind : Message.Kind.UNKNOWN;
        } else if (name.equals(TEXT)) {
            text = in.nextString();
        } else if (name.equals(RAW_MESSAGE)) {
            rawMessage = in.nextString();
        } else if (name.equals(TOOL_NAME)) {
            toolName = Optional.of(in.nextString());
        } else if (name.equals(SOURCE_FILE_POSITIONS)) {
            switch (in.peek()) {
            case BEGIN_ARRAY:
                in.beginArray();
                while (in.hasNext()) {
                    positions.add(mSourceFilePositionTypeAdapter.read(in));
                }
                in.endArray();
                break;
            case BEGIN_OBJECT:
                positions.add(mSourceFilePositionTypeAdapter.read(in));
                break;
            default:
                in.skipValue();
                break;
            }
        } else if (name.equals(LEGACY_SOURCE_PATH)) {
            legacyFile = new SourceFile(new File(in.nextString()));
        } else if (name.equals(LEGACY_POSITION)) {
            legacyPosition = mSourcePositionTypeAdapter.read(in);
        } else {
            in.skipValue();
        }
    }
    in.endObject();

    if (legacyFile != SourceFile.UNKNOWN || legacyPosition != SourcePosition.UNKNOWN) {
        positions.add(new SourceFilePosition(legacyFile, legacyPosition));
    }
    if (rawMessage == null) {
        rawMessage = text;
    }
    ImmutableList<SourceFilePosition> sourceFilePositions = positions.build();
    if (!sourceFilePositions.isEmpty()) {
        return new Message(kind, text, rawMessage, toolName, sourceFilePositions);
    } else {
        return new Message(kind, text, rawMessage, toolName, ImmutableList.of(SourceFilePosition.UNKNOWN));
    }
}