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:io.sarl.maven.docs.generator.SARLDocGenerate.java

@Override
protected void compile(XtendBatchCompiler xtend2BatchCompiler, String classPath, List<String> sourceDirectories,
        String outputPath) throws MojoExecutionException {
    configureWorkspace(sourceDirectories, outputPath);
    this.resourceSetProvider.get().eAdapters().clear();
    xtend2BatchCompiler.setResourceSetProvider(this.resourceSetProvider);
    MavenProjectAdapter.install(this.resourceSetProvider.get(), this.project);
    Iterable<String> filtered = Iterables.filter(sourceDirectories, FILE_EXISTS);
    if (Iterables.isEmpty(filtered)) {
        getLog().info("skip compiling sources because the configured directory '" //$NON-NLS-1$
                + Iterables.toString(sourceDirectories) + "' does not exists."); //$NON-NLS-1$
        return;/*from   w  w w. jav a2 s.com*/
    }
    getLog().debug("Set temp directory: " + getTempDirectory()); //$NON-NLS-1$
    xtend2BatchCompiler.setTempDirectory(getTempDirectory());
    getLog().debug("Set DeleteTempDirectory: " + false); //$NON-NLS-1$
    xtend2BatchCompiler.setDeleteTempDirectory(false);
    getLog().debug("Set classpath: " + classPath); //$NON-NLS-1$
    xtend2BatchCompiler.setClassPath(classPath);
    getLog().debug("Set source path: " + Strings.concat(File.pathSeparator, Lists.newArrayList(filtered))); //$NON-NLS-1$
    xtend2BatchCompiler.setSourcePath(Strings.concat(File.pathSeparator, Lists.newArrayList(filtered)));
    getLog().debug("Set output path: " + outputPath); //$NON-NLS-1$
    xtend2BatchCompiler.setOutputPath(outputPath);
    getLog().debug("Set encoding: " + this.encoding); //$NON-NLS-1$
    xtend2BatchCompiler.setFileEncoding(this.encoding);
    getLog().debug("Set writeTraceFiles: " + this.writeTraceFiles); //$NON-NLS-1$
    xtend2BatchCompiler.setWriteTraceFiles(this.writeTraceFiles);
    if (!xtend2BatchCompiler.compile()) {
        throw new MojoExecutionException("Error compiling xtend sources in '" //$NON-NLS-1$
                + Strings.concat(File.pathSeparator, Lists.newArrayList(filtered)) + "'."); //$NON-NLS-1$
    }
}

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

/**
 * Removes entries in {@code valuesToInject} whose values are equal to the present values in the
 * graph./*from  w  ww  .j av  a2 s.  co  m*/
 */
private void pruneInjectedValues(Map<SkyKey, SkyValue> valuesToInject) {
    for (Iterator<Entry<SkyKey, SkyValue>> it = valuesToInject.entrySet().iterator(); it.hasNext();) {
        Entry<SkyKey, SkyValue> entry = it.next();
        SkyKey key = entry.getKey();
        SkyValue newValue = entry.getValue();
        NodeEntry prevEntry = graph.get(null, Reason.OTHER, key);
        if (prevEntry != null && prevEntry.isDone()) {
            try {
                Iterable<SkyKey> directDeps = prevEntry.getDirectDeps();
                Preconditions.checkState(Iterables.isEmpty(directDeps), "existing entry for %s has deps: %s",
                        key, directDeps);
                if (newValue.equals(prevEntry.getValue()) && !valuesToDirty.contains(key)
                        && !valuesToDelete.contains(key)) {
                    it.remove();
                }
            } catch (InterruptedException e) {
                throw new IllegalStateException("InMemoryGraph does not throw: " + entry + ", " + prevEntry, e);
            }
        }
    }
}

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From source file:org.apache.beam.runners.direct.EvaluationContext.java

private Iterable<? extends CommittedBundle<?>> commitBundles(Iterable<? extends UncommittedBundle<?>> bundles) {
    ImmutableList.Builder<CommittedBundle<?>> completed = ImmutableList.builder();
    for (UncommittedBundle<?> inProgress : bundles) {
        AppliedPTransform<?, ?, ?> producing = graph.getProducer(inProgress.getPCollection());
        TransformWatermarks watermarks = watermarkManager.getWatermarks(producing);
        CommittedBundle<?> committed = inProgress.commit(watermarks.getSynchronizedProcessingOutputTime());
        // Empty bundles don't impact watermarks and shouldn't trigger downstream execution, so
        // filter them out
        if (!Iterables.isEmpty(committed.getElements())) {
            completed.add(committed);/*w  w w .  ja  v  a  2  s  .  c  o  m*/
        }
    }
    return completed.build();
}

---

From source file:org.eclipse.viatra.addon.validation.runtime.annotation.ConstraintAnnotationValidator.java

private List<Variable> computeVariableListFromListValue(IIssueCallback validator, final Pattern pattern,
        ValueReference listValue, String issueCode) {
    List<Variable> variables = Lists.newArrayList();
    Iterable<VariableReference> variableReferenceList = transformVariableReferenceList(listValue);
    Iterable<StringValue> stringValueList = transformStringList(listValue);

    if (!Iterables.isEmpty(variableReferenceList) && !Iterables.isEmpty(stringValueList)) {
        validator.error("Must not mix string and variable values!", listValue, null, issueCode);
    }/*from  ww w .  jav  a  2 s  . c  o  m*/

    for (StringValue key : stringValueList) {
        Optional<Variable> parameterByName = PatternLanguageHelper.getParameterByName(pattern, key.getValue());
        if (parameterByName.isPresent()) {
            variables.add(parameterByName.get());
            validator.warning("Deprecated: remove quotes to use variable reference instead!", key, null,
                    issueCode);
        } else {
            validator.error(key.getValue() + " is not a pattern parameter!", key, null, issueCode);
        }
    }
    for (VariableReference key : variableReferenceList) {
        if (key.getVariable() != null) {
            variables.add(key.getVariable());
        }
    }
    return variables;
}

---

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

/**
 * Returns a mutable List of the source Artifacts.
 *///from   w  ww .ja v a 2s. com
public List<Artifact> validateSrcs() {
    List<Artifact> sourceFiles = new ArrayList<>();
    // TODO(bazel-team): Need to get the transitive deps closure, not just the
    //                 sources of the rule.
    for (TransitiveInfoCollection src : ruleContext.getPrerequisitesIf("srcs", Mode.TARGET,
            FileProvider.class)) {
        // Make sure that none of the sources contain hyphens.
        if (Util.containsHyphen(src.getLabel().getPackageFragment())) {
            ruleContext.attributeError("srcs",
                    src.getLabel() + ": paths to Python packages may not contain '-'");
        }
        Iterable<Artifact> pySrcs = FileType.filter(src.getProvider(FileProvider.class).getFilesToBuild(),
                PyRuleClasses.PYTHON_SOURCE);
        Iterables.addAll(sourceFiles, pySrcs);
        if (Iterables.isEmpty(pySrcs)) {
            ruleContext.attributeWarning("srcs",
                    "rule '" + src.getLabel() + "' does not produce any Python source files");
        }
    }

    LanguageDependentFragment.Checker.depsSupportsLanguage(ruleContext, PyRuleClasses.LANGUAGE);
    return convertedFiles != null ? ImmutableList.copyOf(convertedFiles.values()) : sourceFiles;
}

---

From source file:com.google.devtools.j2objc.gen.TypeDeclarationGenerator.java

/**
 * Prints the list of instance variables in a type.
 *//*from  ww w . ja  v a  2s.com*/
protected void printInstanceVariables() {
    Iterable<VariableDeclarationFragment> fields = getInstanceFields();
    if (Iterables.isEmpty(fields)) {
        newline();
        return;
    }
    // Need direct access to fields possibly from inner classes that are
    // promoted to top level classes, so must make all visible fields public.
    println(" {");
    println(" @public");
    indent();
    FieldDeclaration lastDeclaration = null;
    boolean needsAsterisk = false;
    for (VariableDeclarationFragment fragment : fields) {
        IVariableBinding varBinding = fragment.getVariableBinding();
        FieldDeclaration declaration = (FieldDeclaration) fragment.getParent();
        if (declaration != lastDeclaration) {
            if (lastDeclaration != null) {
                println(";");
            }
            lastDeclaration = declaration;
            JavadocGenerator.printDocComment(getBuilder(), declaration.getJavadoc());
            printIndent();
            if (BindingUtil.isWeakReference(varBinding) && !BindingUtil.isVolatile(varBinding)) {
                // We must add this even without -use-arc because the header may be
                // included by a file compiled with ARC.
                print("__unsafe_unretained ");
            }
            String objcType = getDeclarationType(varBinding);
            needsAsterisk = objcType.endsWith("*");
            if (needsAsterisk) {
                // Strip pointer from type, as it will be added when appending fragment.
                // This is necessary to create "Foo *one, *two;" declarations.
                objcType = objcType.substring(0, objcType.length() - 2);
            }
            print(objcType);
            print(' ');
        } else {
            print(", ");
        }
        if (needsAsterisk) {
            print('*');
        }
        print(nameTable.getVariableShortName(varBinding));
    }
    println(";");
    unindent();
    println("}");
}

---

From source file:com.palantir.atlasdb.keyvalue.partition.BasicPartitionMap.java

@Override
public Map<KeyValueService, NavigableSet<byte[]>> getServicesForRowsRead(String tableName,
        Iterable<byte[]> rows) {
    Map<KeyValueService, NavigableSet<byte[]>> result = Maps.newHashMap();
    for (byte[] row : rows) {
        Set<KeyValueService> services = getServicesHavingRow(row);
        for (KeyValueService kvs : services) {
            if (!result.containsKey(kvs)) {
                result.put(kvs, Sets.<byte[]>newTreeSet(UnsignedBytes.lexicographicalComparator()));
            }/*from  w  ww .ja  v  a  2  s .  c  om*/
            assert !result.get(kvs).contains(row);
            result.get(kvs).add(row);
        }
    }
    if (!Iterables.isEmpty(rows)) {
        assert result.keySet().size() >= quorumParameters.getReplicationFactor();
    }
    return result;
}

---

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

private void assertLibraryOrSources(ObjcProvider objcProvider, RuleContext ruleContext)
        throws RuleErrorException {
    if (Iterables.isEmpty(objcProvider.get(LIBRARY)) // Includes sources from this target.
            && Iterables.isEmpty(objcProvider.get(IMPORTED_LIBRARY))) {
        ruleContext.throwWithRuleError(REQUIRES_AT_LEAST_ONE_LIBRARY_OR_SOURCE_FILE);
    }//  www . ja  v a2s.c o  m
}

---

From source file:com.palantir.atlasdb.keyvalue.jdbc.JdbcKeyValueService.java

private Map<Cell, Value> getRowsAllColumns(final String tableName, final Iterable<byte[]> rows,
        final long timestamp) {
    if (Iterables.isEmpty(rows)) {
        return ImmutableMap.of();
    }//from   w  ww .  java2s. co  m
    return run(new Function<DSLContext, Map<Cell, Value>>() {
        @Override
        public Map<Cell, Value> apply(DSLContext ctx) {
            Select<? extends Record> query = getLatestTimestampQueryAllColumns(ctx, tableName,
                    ImmutableList.copyOf(rows), timestamp);
            Result<? extends Record> records = fetchValues(ctx, tableName, query);
            Map<Cell, Value> results = Maps.newHashMapWithExpectedSize(records.size());
            for (Record record : records) {
                results.put(Cell.create(record.getValue(A_ROW_NAME), record.getValue(A_COL_NAME)),
                        Value.create(record.getValue(A_VALUE), record.getValue(A_TIMESTAMP)));
            }
            return results;
        }
    });
}

---

From source file:ezbake.deployer.utilities.YamlManifestFileReader.java

private void setArtifactInfo(Map<String, Object> ymlManifest, ArtifactInfo artifactInfo,
        ApplicationInfo applicationInfo) {
    Map<String, Object> subMap = (Map<String, Object>) ymlManifest.get(RootManifestKeys.resources.getName());
    if (subMap != null)
        artifactInfo.setResourceRequirements(toRequirements(subMap));
    String value = toString(ymlManifest.get(RootManifestKeys.language.getName()));
    if (value != null)
        artifactInfo.setLanguage(languageFromString(value));
    updateValue(ymlManifest, artifactInfo, ArtifactInfo._Fields.BIN, ArtifactKeys.bin);
    updateValue(ymlManifest, artifactInfo, ArtifactInfo._Fields.PURGEABLE, ArtifactKeys.purgeable,
            Boolean.class, Optional.of(false));
    updateValue(ymlManifest, artifactInfo, ArtifactInfo._Fields.SYSTEM_LOGFILE_DISABLED,
            ArtifactKeys.disableSystemLogfile, Boolean.class, Optional.of(false));

    Iterable<String> iterable = (Iterable<String>) ymlManifest.get(ArtifactKeys.config.getName());
    if (iterable != null && !Iterables.isEmpty(iterable)) {
        artifactInfo.setConfig(Sets.newHashSet(iterable));
    }/*from w w  w  . java2s  .  co  m*/
    setApplicationInfo(ymlManifest, applicationInfo, false);
    Map<String, Object> innerArtifactInfo = (Map<String, Object>) ymlManifest
            .get(RootManifestKeys.artifactInfo.getName());
    if (innerArtifactInfo != null)
        setArtifactInfo(innerArtifactInfo, artifactInfo, applicationInfo);
}

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