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

Introduction

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

Prototype

@Nullable
public static <T> T getFirst(Iterable<? extends T> iterable, @Nullable T defaultValue)

Source Link

Document

Returns the first element in iterable or defaultValue if the iterable is empty.

Usage

From source file:com.google.security.zynamics.binnavi.Gui.Debug.ToolbarPanel.Implementations.CSteppingHelper.java

/**
 * Determines the start address of a node.
 *
 * @param node Node whose address is determined.
 *
 * @return The start address of the given node or null if the node does not have an address.
 *///from   ww  w  .  j  a v a  2s .  c  o  m
private static BreakpointAddress getAddress(final INaviViewNode node) {
    if (node instanceof INaviCodeNode) {
        final INaviCodeNode ccnode = (INaviCodeNode) node;

        final INaviInstruction instruction = Iterables.getFirst(ccnode.getInstructions(), null);

        return new BreakpointAddress(instruction.getModule(), new UnrelocatedAddress(instruction.getAddress()));
    } else if (node instanceof INaviFunctionNode) {
        final INaviFunction function = ((INaviFunctionNode) node).getFunction();
        final INaviModule module = function.getModule();

        return new BreakpointAddress(module, new UnrelocatedAddress(function.getAddress()));
    } else {
        // Node types we can not step to
        return null;
    }
}

From source file:com.zimbra.common.util.ListUtil.java

/**
 * Returns the first element, or {@code null} if the collection is
 * {@code null} or empty.//from w ww. jav a  2  s  .co  m
 */
public static <T> T getFirstElement(Iterable<T> iterable) {
    return iterable == null ? null : Iterables.getFirst(iterable, null);
}

From source file:org.devinprogress.uniskinmod.UniSkinMod.java

/** Hijack the GameProfile in NetworkPlayerInfo & Skull renderer*/
public static GameProfile fillGameProfile(final GameProfile gameProfileIn) {
    if (gameProfileIn == null)
        return null;
    final String player_name = gameProfileIn.getName();

    Property finalP = null;/*from w ww  . ja v  a 2  s . c  o m*/
    try {
        finalP = cache.get(player_name, new Callable<Property>() {
            @Override
            public Property call() throws Exception {
                log.info("Filling profile for player: " + player_name);
                Property textureProperty = (Property) Iterables
                        .getFirst(gameProfileIn.getProperties().get("textures"), (Object) null);
                MojangTexturePayload payload = MojangTexturePayload.fromProperty(textureProperty);
                if (payload == null)
                    payload = new MojangTexturePayload(player_name);

                for (String root : roots) {
                    if (payload.isComplete())
                        break;
                    UniSkinApiProfile api = UniSkinApiProfile.getProfile(player_name, root);
                    if (api == null)
                        continue;
                    payload.addCape(api.getCapeURL());
                    payload.addSkin(api.getSkinURL(), api.getModel());
                }

                return payload.toProperty();
            }
        });
    } catch (Exception ex) {
        ex.printStackTrace();
        return gameProfileIn;
    }

    gameProfileIn.getProperties().removeAll("textures");
    gameProfileIn.getProperties().put("textures", finalP);
    return gameProfileIn;
}

From source file:com.facebook.buck.apple.FrameworkPath.java

public static FrameworkPath fromString(BuildTarget target, String string) {
    Path path = Paths.get(string);

    String firstElement = Preconditions.checkNotNull(Iterables.getFirst(path, Paths.get(""))).toString();

    if (firstElement.startsWith("$")) { // NOPMD - length() > 0 && charAt(0) == '$' is ridiculous
        Optional<PBXReference.SourceTree> sourceTree = PBXReference.SourceTree.fromBuildSetting(firstElement);
        if (sourceTree.isPresent()) {
            return ImmutableFrameworkPath.builder().setSourceTreePath(
                    new SourceTreePath(sourceTree.get(), path.subpath(1, path.getNameCount()))).build();
        } else {//from ww w.j  a  v a2 s  . c  o  m
            throw new HumanReadableException(String.format(
                    "Unknown SourceTree: %s in target: %s. Should be one of: %s", firstElement, target,
                    Joiner.on(',')
                            .join(Iterables.transform(ImmutableList.copyOf(PBXReference.SourceTree.values()),
                                    new Function<PBXReference.SourceTree, String>() {
                                        @Override
                                        public String apply(PBXReference.SourceTree input) {
                                            return "$" + input.toString();
                                        }
                                    }))));
        }
    } else {
        return ImmutableFrameworkPath.builder()
                .setSourcePath(new BuildTargetSourcePath(target, Paths.get(string))).build();
    }
}

From source file:io.bazel.rules.closure.ClosureUberAlles.java

@Override
public Integer apply(Iterable<String> args) {
    String head = Iterables.getFirst(args, "");
    Iterable<String> tail = Iterables.skip(args, 1);
    // TODO(jart): Include Closure Templates and Stylesheets.
    switch (head) {
    case "JsChecker":
        return new JsChecker.Program().apply(tail);
    case "JsCompiler":
        return new JsCompiler().apply(tail);
    default://from   ww  w  .  j  av  a  2  s.  c o  m
        System.err.println("\nERROR: First flag to ClosureUberAlles should be specific compiler to run, "
                + "e.g. JsChecker\n");
        return 1;
    }
}

From source file:org.eclipse.osee.framework.skynet.core.utility.ConnectionHandler.java

private static JdbcService findJdbcService(BundleContext context) {
    JdbcService toReturn = null;/* w  ww.jav  a2 s  .co m*/
    try {
        Collection<ServiceReference<JdbcService>> references = context.getServiceReferences(JdbcService.class,
                "(osgi.binding=skynet.jdbc.service)");
        ServiceReference<JdbcService> reference = Iterables.getFirst(references, null);
        if (reference != null) {
            toReturn = context.getService(reference);
        }
    } catch (InvalidSyntaxException ex) {
        throw new OseeCoreException(ex,
                "Error finding JdbcService reference with osgi.binding=skynet.jdbc.service");
    }
    return toReturn;
}

From source file:org.apache.metron.dataloads.nonbulk.taxii.TableInfo.java

public TableInfo(String s) {
    Iterable<String> i = Splitter.on(":").split(s);
    if (Iterables.size(i) != 2) {
        throw new IllegalStateException("Malformed table:cf => " + s);
    }//ww w. j av a  2  s.c  om
    tableName = Iterables.getFirst(i, null);
    columnFamily = Iterables.getLast(i);
}

From source file:com.google.gerrit.server.project.ChildProjectResource.java

public boolean isDirectChild() {
    ProjectState parent = Iterables.getFirst(child.getProjectState().parents(), null);
    return parent != null && getNameKey().equals(parent.getProject().getNameKey());
}

From source file:dropship.agent.statsd.SnitchService.java

private static String getHostname() {
    String defaultHostname = "localhost";
    try {//from  ww  w .  j a v  a  2  s  . c o m
        return Iterables.getFirst(Splitter.on('.').split(InetAddress.getLocalHost().getHostName()),
                defaultHostname);
    } catch (Exception e) {
        return defaultHostname;
    }
}

From source file:com.example.repository.MapBackedRepository.java

public V first() {
    return Iterables.getFirst(service.values(), null);
}