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:com.google.devtools.build.lib.analysis.TargetCompleteEvent.java

/**
 * Construct a target completion event for a failed target, with the given non-empty root causes.
 *///  w  w  w  .  ja v  a 2 s  .  co  m
public static TargetCompleteEvent createFailed(ConfiguredTarget ct, NestedSet<Cause> rootCauses) {
    Preconditions.checkArgument(!Iterables.isEmpty(rootCauses));
    return new TargetCompleteEvent(ct, rootCauses, false);
}

From source file:org.sonar.maven.MavenAnalyzer.java

public void scan(Iterable<File> files) {
    boolean hasMavenFileScanners = !scanners.isEmpty();
    boolean hasPomFile = !Iterables.isEmpty(files);
    if (hasMavenFileScanners && !hasPomFile) {
        LOG.warn("No 'pom.xml' file have been indexed.");
        return;/* w  w  w  .  jav a  2 s.c o m*/
    }

    ProgressReport progressReport = new ProgressReport("Report about progress of Maven Pom analyzer",
            TimeUnit.SECONDS.toMillis(10));
    progressReport.start(Lists.newArrayList(files));

    boolean successfulyCompleted = false;
    try {
        for (File file : files) {
            simpleScan(file);
            progressReport.nextFile();
        }
        successfulyCompleted = true;
    } finally {
        if (successfulyCompleted) {
            progressReport.stop();
        } else {
            progressReport.cancel();
        }
    }

}

From source file:org.eclipse.tracecompass.lttng2.ust.core.analysis.debuginfo.UstDebugInfoSourceAspect.java

/**
 * Get the source callsite (the full {@link TmfCallsite} information) from a
 * binary callsite.//from ww w .j  av  a 2 s.c  o m
 *
 * @param trace
 *            The trace, which may contain trace-specific configuration
 * @param bc
 *            The binary callsite
 * @return The source callsite, which sould include file name, function name
 *         and line number
 */
public static @Nullable SourceCallsite getSourceCallsite(LttngUstTrace trace, BinaryCallsite bc) {
    Iterable<SourceCallsite> callsites = FileOffsetMapper
            .getCallsiteFromOffset(new File(bc.getBinaryFilePath()), bc.getBuildId(), bc.getOffset());

    if (callsites == null || Iterables.isEmpty(callsites)) {
        return null;
    }
    /*
     * TMF only supports the notion of one callsite per event at the moment.
     * We will take the "deepest" one in the stack, which should refer to
     * the initial, non-inlined location.
     */
    SourceCallsite callsite = Iterables.getLast(callsites);

    /*
     * Apply the path prefix again, this time on the path given from
     * addr2line. If applicable.
     */
    String pathPrefix = trace.getSymbolProviderConfig().getActualRootDirPath();
    if (pathPrefix.isEmpty()) {
        return callsite;
    }

    String fullFileName = (pathPrefix + callsite.getFileName());
    return new SourceCallsite(fullFileName, callsite.getFunctionName(), callsite.getLineNumber());
}

From source file:com.codebullets.external.party.simulator.connections.ConnectionLoader.java

/**
 * Loads all connections from configuration and starts them.
 *///from  w  w w.j  a v a 2  s  .c om
public void startAllConnections() {
    Iterable<Path> connectionSettings = findAllConnectionSettings();

    ConnectionConfigurator connectionConfigurator = new ConnectionConfigurator();
    Iterable<ConnectionConfig> connectionConfigs = connectionConfigurator.readConnections(connectionSettings);
    if (Iterables.isEmpty(connectionConfigs)) {
        LOG.warn(
                "No connection setting found. Please make sure the configuration is in either the connections sub folder or "
                        + "the 'simulator.connections' system property points to the target location.");
    }

    printConfig(connectionConfigs);

    for (ConnectionConfig connectionConfig : connectionConfigs) {
        startConnection(connectionConfig);
    }
}

From source file:com.google.devtools.build.lib.query2.engine.SomeFunction.java

@Override
public <T> void eval(QueryEnvironment<T> env, VariableContext<T> context, QueryExpression expression,
        List<Argument> args, final Callback<T> callback) throws QueryException, InterruptedException {
    final AtomicBoolean someFound = new AtomicBoolean(false);
    env.eval(args.get(0).getExpression(), context, new Callback<T>() {
        @Override//www.j a va  2s  .com
        public void process(Iterable<T> partialResult) throws QueryException, InterruptedException {
            if (someFound.get() || Iterables.isEmpty(partialResult)) {
                return;
            }
            callback.process(ImmutableSet.of(partialResult.iterator().next()));
            someFound.set(true);
        }
    });
    if (!someFound.get()) {
        throw new QueryException(expression, "argument set is empty");
    }
}

From source file:com.eucalyptus.autoscaling.common.internal.configurations.LaunchConfigurations.java

public static boolean containsSecurityGroupIdentifiers(final Iterable<String> groups) {
    return !Iterables.isEmpty(groups) && Iterables.get(groups, 0).matches("sg-[0-9A-Fa-f]{8}");
}

From source file:org.terasology.engine.subsystem.common.ConfigurationSubsystem.java

@Override
public void preInitialise(Context rootContext) {
    config = new Config();
    config.load();/*from w w w.j  av a 2s  .c o m*/

    String serverPortProperty = System.getProperty(SERVER_PORT_PROPERTY);
    if (serverPortProperty != null) {
        try {
            config.getNetwork().setServerPort(Integer.parseInt(serverPortProperty));
        } catch (NumberFormatException e) {
            logger.error("Failed to set server port to invalid value: {}", serverPortProperty);
        }
    }

    if (Iterables.isEmpty(config.getDefaultModSelection().listModules())) {
        config.getDefaultModSelection().addModule(TerasologyConstants.CORE_GAMEPLAY_MODULE);
    }

    checkServerIdentity();

    // TODO: Move to display subsystem
    logger.info("Video Settings: {}", config.renderConfigAsJson(config.getRendering()));
    rootContext.put(Config.class, config);
}

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

private void printClassExtension() {
    if (isInterfaceType()) {
        return;/*  w ww .ja v  a2 s. c o  m*/
    }
    boolean hasPrivateFields = !Iterables.isEmpty(getInstanceFields());
    Iterable<BodyDeclaration> privateDecls = getInnerDeclarations();
    if (!Iterables.isEmpty(privateDecls) || hasPrivateFields) {
        newline();
        printf("@interface %s ()", typeName);
        printInstanceVariables();
        printDeclarations(privateDecls);
        println("\n@end");
    }
}

From source file:guru.qas.martini.tag.DefaultCategories.java

@Override
public void afterPropertiesSet() throws Exception {
    Map<String, Category> beans = applicationContext.getBeansOfType(Category.class);
    Collection<Category> categories = beans.values();

    for (Category category : categories) {
        String name = category.getName();
        Iterable<String> parentNames = category.getParentNames();

        if (Iterables.isEmpty(parentNames)) {
            ascendingHierarchy.put(name, null);
        } else {/*from  w  ww  . j ava  2s . c o m*/
            for (String parentName : parentNames) {
                ascendingHierarchy.put(name, parentName);
            }
        }
    }
}

From source file:org.sonar.java.checks.xml.struts.ActionNumberCheck.java

@Override
public void scanFileWithXPathExpressions(XmlCheckContext context) {
    for (Node action : context.evaluateOnDocument(actionsExpression)) {
        Iterable<Node> extraForwards = Iterables.skip(context.evaluate(forwardsFromActionExpression, action),
                maximumForwards);//from  w ww.j a va  2s .  com
        if (!Iterables.isEmpty(extraForwards)) {
            List<XmlCheckContext.XmlDocumentLocation> secondaries = new LinkedList<>();
            for (Node forward : extraForwards) {
                secondaries.add(new XmlCheckContext.XmlDocumentLocation("Move this forward to another action.",
                        forward));
            }
            int cost = secondaries.size();
            int numberForward = maximumForwards + cost;
            String message = "Reduce the number of forwards in this action from " + numberForward
                    + " to at most " + maximumForwards + ".";
            context.reportIssue(this, action, message, secondaries, cost);
        }
    }
}