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

Introduction

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

Prototype

public static <T> Iterable<T> concat(Iterable<? extends T> a, Iterable<? extends T> b)

Source Link

Document

Combines two iterables into a single iterable.

Usage

From source file:org.ow2.mind.adl.OptimInstanceSourceGeneratorDispatcher.java

@Override
protected Iterable<? extends VoidVisitor<InstancesDescriptor>> getVisitorsItf(
        final Map<Object, Object> context) {
    return Iterables.concat(visitorsItf,
            VisitorExtensionHelper.getInstanceSourceGeneratorExtensions(pluginManager, context));
}

From source file:co.cask.cdap.logging.appender.LoggingContextMDC.java

LoggingContextMDC(LoggingContext loggingContext, Map<String, String> eventMDC) {
    this.systemTags = loggingContext.getSystemTagsAsString();
    this.eventMDC = eventMDC;
    this.entryIterable = Iterables.concat(systemTags.entrySet(),
            Iterables.filter(eventMDC.entrySet(), new Predicate<Entry<String, String>>() {
                @Override//from  w w w. j a va2 s .  c o  m
                public boolean apply(Entry<String, String> entry) {
                    return !systemTags.containsKey(entry.getKey());
                }
            }));
}

From source file:org.ow2.mind.adl.OptimDefinitionSourceGeneratorDispatcher.java

@Override
protected Iterable<? extends VoidVisitor<Definition>> getVisitorsItf(final Map<Object, Object> context) {
    return Iterables.concat(visitorsItf,
            VisitorExtensionHelper.getDefinitionSourceGeneratorExtensions(pluginManager, context));
}

From source file:co.cask.cdap.hive.ExploreUtils.java

/**
 * Builds a class loader with the class path provided.
 *///  w  ww . jav  a  2  s.co  m
public static synchronized ClassLoader getExploreClassloader() {
    if (exploreClassLoader != null) {
        return exploreClassLoader;
    }

    // EXPLORE_CLASSPATH and EXPLORE_CONF_FILES will be defined in startup scripts if Hive is installed.
    String exploreClassPathStr = System.getProperty(Constants.Explore.EXPLORE_CLASSPATH);
    LOG.debug("Explore classpath = {}", exploreClassPathStr);
    if (exploreClassPathStr == null) {
        throw new RuntimeException("System property " + Constants.Explore.EXPLORE_CLASSPATH + " is not set.");
    }

    String exploreConfPathStr = System.getProperty(Constants.Explore.EXPLORE_CONF_FILES);
    LOG.debug("Explore confPath = {}", exploreConfPathStr);
    if (exploreConfPathStr == null) {
        throw new RuntimeException("System property " + Constants.Explore.EXPLORE_CONF_FILES + " is not set.");
    }

    Iterable<File> hiveClassPath = getClassPathJarsFiles(exploreClassPathStr);
    Iterable<File> hiveConfFiles = getClassPathJarsFiles(exploreConfPathStr);
    ImmutableList.Builder<URL> builder = ImmutableList.builder();
    for (File file : Iterables.concat(hiveClassPath, hiveConfFiles)) {
        try {
            if (file.getName().matches(".*\\.xml")) {
                builder.add(file.getParentFile().toURI().toURL());
            } else {
                builder.add(file.toURI().toURL());
            }
        } catch (MalformedURLException e) {
            LOG.error("Jar URL is malformed", e);
            throw Throwables.propagate(e);
        }
    }
    exploreClassLoader = new URLClassLoader(Iterables.toArray(builder.build(), URL.class),
            ClassLoader.getSystemClassLoader());
    return exploreClassLoader;
}

From source file:c5db.log.EntryEncodingUtil.java

/**
 * Serialize a protostuff message object, prefixed with message length, and suffixed with a 4-byte CRC.
 *
 * @param schema  Protostuff message schema
 * @param message Object to serialize//w  ww . j  a v  a 2 s .co m
 * @param <T>     Message type
 * @return A list of ByteBuffers containing a varInt length, followed by the message, followed by a 4-byte CRC.
 */
public static <T> List<ByteBuffer> encodeWithLengthAndCrc(Schema<T> schema, T message) {
    final LinkBuffer messageBuf = new LinkBuffer();
    final LowCopyProtobufOutput lcpo = new LowCopyProtobufOutput(messageBuf);

    try {
        schema.writeTo(lcpo, message);

        final int length = Ints.checkedCast(lcpo.buffer.size());
        final LinkBuffer lengthBuf = new LinkBuffer().writeVarInt32(length);

        return appendCrcToBufferList(
                Lists.newArrayList(Iterables.concat(lengthBuf.finish(), messageBuf.finish())));
    } catch (IOException e) {
        // This method performs no IO, so it should not actually be possible for an IOException to be thrown.
        // But just in case...
        throw new RuntimeException(e);
    }
}

From source file:com.matthewmitchell.peercoinj.crypto.HDUtils.java

public static String formatPath(List<ChildNumber> path) {
    return PATH_JOINER.join(Iterables.concat(Collections.singleton("M"), path));
}

From source file:com.streamreduce.util.ConnectionUtils.java

/**
 * Returns an iterable of all {@link ConnectionProvider}, regardless of type.
 *
 * @return an iterable of supported provider objects, regardless of type
 *//*from w w  w .  j a  v  a 2  s . co m*/
public static Iterable<? extends ConnectionProvider> getAllProviders() {
    Iterable<? extends ConnectionProvider> allProviders = null;

    for (String providerType : PROVIDER_MAP.keySet()) {
        Iterable<? extends ConnectionProvider> providers = getSupportedProviders(providerType);

        if (allProviders == null) {
            allProviders = providers;
        } else {
            allProviders = Iterables.concat(allProviders, providers);
        }
    }

    return allProviders;
}

From source file:org.trancecode.collection.TcIterables.java

public static <T> Iterable<T> append(final Iterable<T> iterable, final T element) {
    return Iterables.concat(iterable, ImmutableList.of(element));
}

From source file:org.auraframework.impl.css.parser.FlavoredStyleParser.java

@Override
public FlavoredStyleDef parse(DefDescriptor<FlavoredStyleDef> descriptor, Source<FlavoredStyleDef> source)
        throws QuickFixException {

    ParserResult result = CssPreprocessor.initial().source(source.getContents())
            .resourceName(source.getSystemId())
            .allowedConditions(//w  ww.jav a  2 s .c o  m
                    Iterables.concat(ALLOWED_CONDITIONS, Aura.getStyleAdapter().getExtraAllowedConditions()))
            .tokens(descriptor).flavors(descriptor).parse();

    FlavoredStyleDefImpl.Builder builder = new FlavoredStyleDefImpl.Builder();
    builder.setDescriptor(descriptor);
    builder.setLocation(source.getSystemId(), source.getLastModified());
    builder.setOwnHash(source.getHash());
    builder.setContent(result.content());
    builder.setTokenExpressions(result.expressions());
    builder.setFlavorAnnotations(result.flavorAnnotations());

    return builder.build();
}

From source file:com.oculusinfo.tile.init.providers.StandardPyramidIOFactoryProvider.java

/**
 * Concatenates two string lists together.
 * @return If either of the input lists are null, then the other is returned, othwerise
 * a new list is created that contains both lists.
 *//*from  www  .j av a 2  s.co  m*/
private static List<String> getMergedPath(List<String> path1, List<String> path2) {
    if (path1 == null)
        return path2;
    if (path2 == null)
        return path1;
    return Lists.newArrayList(Iterables.concat(path1, path2));
}