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

Introduction

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

Prototype

public static boolean isEmpty(Iterable<?> iterable)

Source Link

Document

Determines if the given iterable contains no elements.

Usage

From source file:org.raml.utilities.format.Joiner.java

public String join(Iterable<?> stuff) {
    if (stuff == null || Iterables.isEmpty(stuff)) {
        // TODO: if ifEmpty is not specified default to prefix + suffix instead.
        return ifEmpty;
    }/*  ww w  .  jav  a  2s. c  o m*/

    StringBuilder builder = new StringBuilder(this.prefix);
    this.joiner.appendTo(builder, stuff);
    builder.append(suffix);
    return builder.toString();
}

From source file:de.cosmocode.commons.validation.TrueRule.java

@Override
public boolean none(Iterable<? extends Object> inputs) {
    Preconditions.checkNotNull(inputs, "Inputs");
    return Iterables.isEmpty(inputs);
}

From source file:com.palantir.atlasdb.jackson.TableRangeSerializer.java

@Override
public void serialize(TableRange value, JsonGenerator jgen, SerializerProvider provider)
        throws IOException, JsonGenerationException {
    jgen.writeStartObject();// w ww.j ava 2  s.c o  m
    {
        jgen.writeStringField("table", value.getTableName());
        jgen.writeBinaryField("raw_start", value.getStartRow());
        jgen.writeBinaryField("raw_end", value.getEndRow());
        jgen.writeNumberField("batch_size", value.getBatchSize());
        if (!Iterables.isEmpty(value.getColumns())) {
            jgen.writeArrayFieldStart("cols");
            {
                for (byte[] column : value.getColumns()) {
                    jgen.writeString(PtBytes.toString(column));
                }
            }
            jgen.writeEndArray();
        }
    }
    jgen.writeEndObject();
}

From source file:org.apache.brooklyn.entity.group.FirstFromRemovalStrategy.java

@Nullable
@Override// w w w .  j a  v a 2s .  c o  m
public Entity apply(@Nullable Collection<Entity> input) {
    List<RemovalStrategy> strategies = config().get(STRATEGIES);
    if (strategies == null || Iterables.isEmpty(strategies)) {
        return null;
    }
    for (RemovalStrategy strategy : strategies) {
        Entity entity = strategy.apply(input);
        if (entity != null) {
            return entity;
        }
    }
    return null;
}

From source file:dagger2.internal.codegen.SourceFileGenerationException.java

private static String createMessage(Iterable<ClassName> generatedClassNames, String message) {
    return String.format("Could not generate %s: %s.",
            Iterables.isEmpty(generatedClassNames) ? "unknown files" : Iterables.toString(generatedClassNames),
            message);//  w  ww  .  ja v  a2 s .c o m
}

From source file:com.spectralogic.ds3cli.views.cli.GetDataPoliciesView.java

@Override
public String render(final GetDataPoliciesResult br) {
    final DataPolicyList dataPolicyList = br.getResult();
    if (null == dataPolicyList || dataPolicyList.getDataPolicies() == null
            || Iterables.isEmpty(dataPolicyList.getDataPolicies())) {
        return "No Data Policies returned.";
    }/*from  w  w  w  .  j  av a2  s. c  o  m*/
    this.dataPolicies = dataPolicyList.getDataPolicies();

    initTable(ImmutableList.of("Name", "Created", "Versioning", "Checksum Type", "End-to-End CRC Required",
            "Blobbing Enabled", "Default Blob Size", "Default Get Job Priority", "Default Put Job Priority",
            "Default Verify Job Priority", "Id", "LTFS Object Naming"));
    setTableDataAlignment(ImmutableList.of(ASCIITable.ALIGN_LEFT, ASCIITable.ALIGN_LEFT, ASCIITable.ALIGN_RIGHT,
            ASCIITable.ALIGN_RIGHT, ASCIITable.ALIGN_RIGHT, ASCIITable.ALIGN_RIGHT, ASCIITable.ALIGN_RIGHT,
            ASCIITable.ALIGN_RIGHT, ASCIITable.ALIGN_RIGHT, ASCIITable.ALIGN_RIGHT, ASCIITable.ALIGN_RIGHT,
            ASCIITable.ALIGN_RIGHT, ASCIITable.ALIGN_RIGHT));
    return ASCIITable.getInstance().getTable(getHeaders(), formatTableContents());
}

From source file:org.eclipse.sirius.diagram.sequence.business.internal.query.ISequenceElementQuery.java

/**
 * Check the presence of the absolute bounds flag.
 * /* w w  w .  java2s  .  c o  m*/
 * @return true if the element is flagged.
 */
public boolean hasAbsoluteBoundsFlag() {
    if (event.getNotationView() != null && event.getNotationView().getElement() instanceof DDiagramElement) {
        DDiagramElement dde = (DDiagramElement) event.getNotationView().getElement();
        return !Iterables.isEmpty(Iterables.filter(dde.getGraphicalFilters(), AbsoluteBoundsFilter.class));
    }
    return false;
}

From source file:com.google.errorprone.bugpatterns.ObjectToString.java

private static boolean finalNoOverrides(Type type, VisitorState state) {
    if (type == null) {
        return false;
    }/*from  ww w . j a  va 2  s . c  o m*/
    // We don't flag use of toString() on non-final objects because sub classes might have a
    // meaningful toString() override.
    if (!type.isFinal()) {
        return false;
    }
    Types types = state.getTypes();
    Names names = Names.instance(state.context);
    // find Object.toString
    MethodSymbol toString = (MethodSymbol) state.getSymtab().objectType.tsym.members()
            .findFirst(names.toString);
    // We explore the superclasses of the receiver type as well as the interfaces it
    // implements and we collect all overrides of java.lang.Object.toString(). If one of those
    // overrides is present, then we don't flag it.
    return Iterables
            .isEmpty(types.membersClosure(type, /* skipInterface= */ false).getSymbolsByName(names.toString,
                    m -> m != toString && m.overrides(toString, type.tsym, types, /* checkResult= */ false)));
}

From source file:com.google.api.server.spi.config.model.ApiSerializationConfig.java

@Override
public boolean equals(Object o) {
    if (this == o) {
        return true;
    } else if (o instanceof ApiSerializationConfig) {
        ApiSerializationConfig config = (ApiSerializationConfig) o;
        return Iterables.isEmpty(getConfigurationInconsistencies(config));
    } else {/*from  w ww . j a v  a  2 s  .  c  o  m*/
        return false;
    }
}

From source file:com.palantir.atlasdb.table.description.IndexMetadata.java

public static IndexMetadata createIndex(String name, String javaName, Iterable<IndexComponent> rowComponents,
        CachePriority cachePriority, PartitionStrategy partitionStrategy, ConflictHandler conflictHandler,
        boolean rangeScanAllowed, int explicitCompressionBlockSizeKB, boolean negativeLookups,
        IndexCondition indexCondition, IndexType indexType, SweepStrategy sweepStrategy,
        ExpirationStrategy expirationStrategy, boolean appendHeavyAndReadLight) {
    Validate.isTrue(!Iterables.isEmpty(rowComponents));
    Iterable<IndexComponent> colComponents = ImmutableList.<IndexComponent>of();
    return new IndexMetadata(name, javaName, rowComponents, colComponents,
            getColNameToAccessFrom(rowComponents, colComponents, indexCondition), cachePriority,
            partitionStrategy, conflictHandler, rangeScanAllowed, explicitCompressionBlockSizeKB,
            negativeLookups, indexCondition, indexType, sweepStrategy, expirationStrategy,
            appendHeavyAndReadLight);//from   w  ww  . jav a2  s.  c om
}