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

List of usage examples for com.google.common.collect Iterables get

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Introduction

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

Prototype

public static <T> T get(Iterable<T> iterable, int position)

Source Link

Document

Returns the element at the specified position in an iterable.

Usage

From source file:msi.gama.common.util.OldFileUtils.java

/**
 * Construct an absolute file path.//w w  w.  j a  va2s  . co m
 *
 * @param scope
 *            the scope
 * @param fp
 *            the fp
 * @param mustExist
 *            the must exist
 * @return the string
 * @throws GamaRuntimeException
 *             the gama runtime exception
 */
static public String constructAbsoluteFilePathAlternate(final IScope scope, final String fp,
        final boolean mustExist) throws GamaRuntimeException {
    String filePath = null;
    Iterable<String> baseDirectories = null;
    final IExperimentAgent a = scope.getExperiment();
    // final List<String> referenceDirectories = a.getWorkingPaths();

    try {
        baseDirectories = Iterables.transform(a.getWorkingPaths(), each -> {
            try {
                return withTrailingSep(URLDecoder.decode(each, "UTF-8"));
            } catch (final UnsupportedEncodingException e1) {
                return each;
            }
        });
        filePath = URLDecoder.decode(fp, "UTF-8");
    } catch (final UnsupportedEncodingException e1) {
        filePath = fp;
    }
    final GamaRuntimeException ex = new GamaRuntimeFileException(scope,
            "File denoted by " + filePath + " not found.");
    File file = null;
    if (FileUtils.isAbsolutePath(filePath)) {
        file = new File(filePath);
        if (file.exists() || !mustExist) {
            try {
                return file.getCanonicalPath();
            } catch (final IOException e) {
                e.printStackTrace();
                return file.getAbsolutePath();
            }
        }
        for (final String baseDirectory : baseDirectories) {
            file = new File(baseDirectory + removeRoot(filePath));
            if (file.exists()) {
                try {
                    return file.getCanonicalPath();
                } catch (final IOException e) {
                    e.printStackTrace();
                    return file.getAbsolutePath();
                }
            }
            ex.addContext(file.getAbsolutePath());
        }
    } else {
        for (final String baseDirectory : baseDirectories) {
            file = new File(baseDirectory + filePath);
            if (file.exists()) {
                try {
                    // We have to try if the test is necessary.
                    if (scope.getExperiment().isHeadless()) {
                        // if (GAMA.isInHeadLessMode()) {
                        return file.getAbsolutePath();
                    } else {
                        return file.getCanonicalPath();
                    }

                } catch (final IOException e) {
                    e.printStackTrace();
                    return file.getAbsolutePath();
                }
            }

            ex.addContext(file.getAbsolutePath());
        }
        // We havent found the file, but it may not exist. In that case, the
        // first directory is used as a reference.
        if (!mustExist) {
            try {
                return new File(Iterables.get(baseDirectories, 0) + filePath).getCanonicalPath();
            } catch (final IOException e) {
                throw ex;
            }
        }
    }

    throw ex;
}

From source file:org.jclouds.virtualbox.functions.CreateAndInstallVm.java

@Inject
public CreateAndInstallVm(
        CreateAndRegisterMachineFromIsoIfNotAlreadyExists CreateAndRegisterMachineFromIsoIfNotAlreadyExists,
        IMachineToNodeMetadata imachineToNodeMetadata, Predicate<SshClient> sshResponds,
        Function<IMachine, SshClient> sshClientForIMachine, MachineUtils machineUtils,
        MachineController machineController, @BuildVersion String version,
        @Named(VIRTUALBOX_PRECONFIGURATION_URL) String preconfigurationUrl) {
    this.createAndRegisterMachineFromIsoIfNotAlreadyExists = CreateAndRegisterMachineFromIsoIfNotAlreadyExists;
    this.sshResponds = sshResponds;
    this.sshClientForIMachine = sshClientForIMachine;
    this.machineUtils = machineUtils;
    this.imachineToNodeMetadata = imachineToNodeMetadata;
    this.machineController = machineController;
    this.version = Iterables.get(Splitter.on('-').split(version), 0);
    this.preconfigurationUrl = preconfigurationUrl;
}

From source file:blue.lapis.pore.impl.inventory.PorePlayerInventory.java

@Override
public void setLeggings(ItemStack leggings) {
    Iterables.get(this.getHandle().query(EquipmentTypes.LEGGINGS).<Slot>slots(), 0)
            .set(ItemStackConverter.of(leggings));
}

From source file:c5db.interfaces.replication.QuorumConfiguration.java

private static long getGreatestIndexCommittedByMajority(Set<Long> peers, Map<Long, Long> peersLastAckedIndex) {
    SortedMultiset<Long> committedIndexes = TreeMultiset.create();
    committedIndexes.addAll(peers.stream().map(peerId -> peersLastAckedIndex.getOrDefault(peerId, 0L))
            .collect(Collectors.toList()));
    return Iterables.get(committedIndexes.descendingMultiset(), calculateNumericalMajority(peers.size()) - 1);
}

From source file:io.prestosql.sql.planner.plan.SetOperationNode.java

/**
 * Returns the output to input symbol mapping for the given source channel
 *///  w w w . java 2s  . co  m
public Map<Symbol, SymbolReference> sourceSymbolMap(int sourceIndex) {
    ImmutableMap.Builder<Symbol, SymbolReference> builder = ImmutableMap.builder();
    for (Map.Entry<Symbol, Collection<Symbol>> entry : outputToInputs.asMap().entrySet()) {
        builder.put(entry.getKey(), Iterables.get(entry.getValue(), sourceIndex).toSymbolReference());
    }

    return builder.build();
}

From source file:org.jclouds.virtualbox.experiment.KickstartTest2.java

protected void setupCredentials() {
    identity = System.getProperty("test." + provider + ".identity", "administrator");
    credential = System.getProperty("test." + provider + ".credential", "12345");
    endpoint = URI.create(System.getProperty("test." + provider + ".endpoint", "http://localhost:18083/"));
    apiVersion = System.getProperty("test." + provider + ".apiversion", "4.1.2r73507");
    majorVersion = Iterables.get(Splitter.on('r').split(apiVersion), 0);
}

From source file:org.jon.ivmark.graphit.core.graph.traversal.Traversable.java

/**
 * Get the element at the specified position.
 */
public E get(int index) {
    return Iterables.get(iterable, index);
}

From source file:org.jclouds.vcloud.compute.strategy.VCloudAddNodeWithTagStrategy.java

@Override
public NodeMetadata addNodeWithTag(String tag, String name, Template template) {
    InstantiateVAppTemplateOptions options = processorCount((int) getCores(template.getHardware()))
            .memory(template.getHardware().getRam())
            .disk((long) ((template.getHardware().getVolumes().get(0).getSize()) * 1024 * 1024l));

    String customizationScript = null;
    if (template.getOptions() instanceof VCloudTemplateOptions) {
        customizationScript = VCloudTemplateOptions.class.cast(template.getOptions()).getCustomizationScript();
        if (customizationScript != null) {
            options.customizeOnInstantiate(false);
            options.deploy(false);/*  ww w .j  a va 2 s  .  c o  m*/
            options.powerOn(false);
        }
    }

    if (!template.getOptions().shouldBlockUntilRunning())
        options.block(false);

    URI VDC = URI.create(template.getLocation().getId());
    URI templateId = URI.create(template.getImage().getId());

    logger.debug(">> instantiating vApp vDC(%s) template(%s) name(%s) options(%s) ", VDC, templateId, name,
            options);

    VApp vAppResponse = client.instantiateVAppTemplateInVDC(VDC, templateId, name, options);
    logger.debug("<< instantiated VApp(%s)", vAppResponse.getName());

    Task task = vAppResponse.getTasks().get(0);

    if (customizationScript == null) {
        return blockOnDeployAndPowerOnIfConfigured(options, vAppResponse, task);
    } else {
        if (!successTester.apply(task.getHref())) {
            throw new RuntimeException(
                    String.format("failed to %s %s: %s", "instantiate", vAppResponse.getName(), task));
        }
        Vm vm = Iterables.get(client.getVApp(vAppResponse.getHref()).getChildren(), 0);
        GuestCustomizationSection guestConfiguration = vm.getGuestCustomizationSection();
        // guestConfiguration
        // .setCustomizationScript(guestConfiguration.getCustomizationScript()
        // != null ?
        // guestConfiguration
        // .getCustomizationScript()
        // + "\n" + customizationScript : customizationScript);
        guestConfiguration.setCustomizationScript(customizationScript);
        task = client.updateGuestCustomizationOfVm(vm.getHref(), guestConfiguration);
        if (!successTester.apply(task.getHref())) {
            throw new RuntimeException(
                    String.format("failed to %s %s: %s", "updateGuestCustomizationOfVm", vm.getName(), task));
        }
        task = client.deployAndPowerOnVAppOrVm(vAppResponse.getHref());
        return blockOnDeployAndPowerOnIfConfigured(options, vAppResponse, task);
    }

}

From source file:org.apache.brooklyn.util.yaml.Yamls.java

/** 
 * For pre-parsed yaml, walks the maps/lists to return the given sub-item.
 * In the given path://from  w w  w .  java  2s.c om
 * <ul>
 *   <li>A vanilla string is assumed to be a key into a map.
 *   <li>A string in the form like "[0]" is assumed to be an index into a list
 * </ul>
 * 
 * Also see {@link Jsonya}, such as {@code Jsonya.of(current).at(path).get()}.
 * 
 * @return The object at the given path, or {@code null} if that path does not exist.
 */
@Beta
@SuppressWarnings("unchecked")
public static Object getAtPreParsed(Object current, List<String> path) {
    for (String pathPart : path) {
        if (pathPart.startsWith("[") && pathPart.endsWith("]")) {
            String index = pathPart.substring(1, pathPart.length() - 1);
            try {
                current = Iterables.get((Iterable<?>) current, Integer.parseInt(index));
            } catch (NumberFormatException e) {
                throw new IllegalArgumentException("Invalid index '" + index + "', in path " + path);
            } catch (IndexOutOfBoundsException e) {
                throw new IllegalArgumentException("Invalid index '" + index + "', in path " + path);
            }
        } else {
            current = ((Map<String, ?>) current).get(pathPart);
        }
        if (current == null)
            return null;
    }
    return current;
}

From source file:org.apache.whirr.service.zookeeper.ZooKeeperService.java

private List<String> getPrivateIps(List<NodeMetadata> nodes) {
    return Lists.transform(Lists.newArrayList(nodes), new Function<NodeMetadata, String>() {
        @Override/* w w w  . j a v a2  s  . c o m*/
        public String apply(NodeMetadata node) {
            return Iterables.get(node.getPrivateAddresses(), 0).getHostAddress();
        }
    });
}