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

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:com.eucalyptus.auth.euare.EuareRemoteRegionService.java

private <R extends IdentityMessage> R send( //TODO:STEVE: move send to a helper (also RemoteIdentityProvider#send)
        final Optional<RegionInfo> region, final IdentityMessage request) throws Exception {
    final Optional<Set<String>> endpoints = region.transform(RegionInfo.serviceEndpoints("identity"));
    final ServiceConfiguration config = new EphemeralConfiguration(ComponentIds.lookup(Identity.class),
            "identity", "identity", URI.create(Iterables.get(endpoints.get(), 0))); //TODO:STEVE: endpoint handling
    return AsyncRequests.sendSync(config, request);
}

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From source file:org.apache.whirr.service.hadoop.HadoopService.java

private Set<Instance> getInstances(final Set<String> roles, Set<? extends NodeMetadata> nodes) {
    return Sets/*w  ww. ja v  a  2  s.  com*/
            .newHashSet(Collections2.transform(Sets.newHashSet(nodes), new Function<NodeMetadata, Instance>() {
                @Override
                public Instance apply(NodeMetadata node) {
                    return new Instance(roles, Iterables.get(node.getPublicAddresses(), 0),
                            Iterables.get(node.getPrivateAddresses(), 0));
                }
            }));
}

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From source file:com.github.benmanes.caffeine.cache.NodeGenerator.java

private void addValue() {
    if (!isBaseClass()) {
        return;/*from  w  w  w  . ja  v a2 s  . c o m*/
    }
    Strength valueStrength = strengthOf(Iterables.get(generateFeatures, 1));
    nodeSubtype.addField(newFieldOffset(className, "value")).addField(newValueField())
            .addMethod(newGetter(valueStrength, vTypeVar, "value", Visibility.LAZY)).addMethod(makeSetValue())
            .addMethod(makeContainsValue());
    addValueConstructorAssignment(constructorByKey);
    addValueConstructorAssignment(constructorByKeyRef);
}

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From source file:brooklyn.util.internal.ssh.SshAbstractTool.java

protected SshAbstractTool(AbstractSshToolBuilder<?, ?> builder) {
    super(builder.localTempDir);

    host = checkNotNull(builder.host, "host");
    port = builder.port;// w  ww  . j  a v a 2  s.  co  m
    user = builder.user;
    password = builder.password;
    strictHostKeyChecking = builder.strictHostKeyChecking;
    allocatePTY = builder.allocatePTY;
    privateKeyPassphrase = builder.privateKeyPassphrase;
    privateKeyData = builder.privateKeyData;

    if (builder.privateKeyFiles.size() > 1) {
        throw new IllegalArgumentException("sshj supports only a single private key-file; "
                + "for defaults of ~/.ssh/id_rsa and ~/.ssh/id_dsa leave blank");
    } else if (builder.privateKeyFiles.size() == 1) {
        String privateKeyFileStr = Iterables.get(builder.privateKeyFiles, 0);
        String amendedKeyFile = privateKeyFileStr.startsWith("~")
                ? (System.getProperty("user.home") + privateKeyFileStr.substring(1))
                : privateKeyFileStr;
        privateKeyFile = new File(amendedKeyFile);
    } else {
        privateKeyFile = null;
    }

    checkArgument(host.length() > 0, "host value must not be an empty string");
    checkPortValid(port, "ssh port");

    toString = String.format("%s@%s:%d", user, host, port);
}

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From source file:com.google.api.server.spi.config.jsonwriter.JsonConfigWriter.java

private String generateForApi(Iterable<? extends ApiConfig> apiConfigs) throws ApiConfigException {
    ObjectNode root = objectMapper.createObjectNode();
    // First, generate api-wide configuration options, given any ApiConfig.
    ApiConfig apiConfig = Iterables.get(apiConfigs, 0);
    convertApi(root, apiConfig);//from ww  w . j a v  a2  s. c om
    convertApiAuth(root, apiConfig.getAuthConfig());
    convertApiFrontendLimits(root, apiConfig.getFrontendLimitsConfig());
    convertApiCacheControl(root, apiConfig.getCacheControlConfig());
    convertApiNamespace(root, apiConfig.getNamespaceConfig());
    // Next, generate config-specific configuration options,
    convertApiMethods(apiConfigs, root);
    return toString(root);
}

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From source file:com.cinchapi.common.collect.Association.java

/**
 * Return a possibly nested value from within the {@link Association}.
 * /*from  w  ww . jav a  2  s .  c  om*/
 * @param path a navigable path key (e.g. foo.bar.1.baz)
 * @return the value
 */
@SuppressWarnings("unchecked")
@Nullable
public <T> T fetch(String path) {
    T value = (T) exploded.get(path); // first, check to see if the path has
                                      // been directly added to the map
    if (value == null) {
        String[] components = path.split("\\.");
        Verify.thatArgument(components.length > 0, "Invalid path " + path);
        Object source = exploded;
        for (String component : components) {
            Integer index;
            if (source == null) {
                break;
            } else if ((index = Ints.tryParse(component)) != null) {
                if (source instanceof Collection && ((Collection<T>) source).size() > index) {
                    source = Iterables.get((Collection<T>) source, index);
                } else {
                    source = null;
                }
            } else {
                source = source instanceof Map ? ((Map<String, Object>) source).get(component) : null;
            }
        }
        return source != null ? (T) source : null;
    } else {
        return value;
    }
}

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From source file:com.google.devtools.build.lib.util.ResourceUsage.java

/**
 * Returns the current total idle time of the processors since system boot.
 * Reads /proc/stat to obtain this information.
 *//*from   ww  w .  j  av a  2s. c o  m*/
private static long getCurrentTotalIdleTimeInJiffies() {
    try {
        File file = new File("/proc/stat");
        String content = Files.toString(file, US_ASCII);
        String value = Iterables.get(WHITESPACE_SPLITTER.split(content), 5);
        return Long.parseLong(value);
    } catch (NumberFormatException | IOException e) {
        return 0L;
    }
}

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From source file:org.jclouds.gogrid.GoGridLiveTestDisabled.java

/**
 * Tests server start, reboot and deletion. Also verifies IP services and job services.
 *///from   w w  w  .j  a va2 s.  c o  m
@Test(enabled = true)
public void testServerLifecycle() {
    int serverCountBeforeTest = api.getServerServices().getServerList().size();

    final String nameOfServer = "Server" + String.valueOf(new Date().getTime()).substring(6);
    serversToDeleteAfterTheTests.add(nameOfServer);

    Set<Ip> availableIps = api.getIpServices().getUnassignedPublicIpList();
    Ip availableIp = Iterables.getLast(availableIps);

    String ram = Iterables.get(api.getServerServices().getRamSizes(), 0).getName();

    Server createdServer = api.getServerServices().addServer(nameOfServer,
            "GSI-f8979644-e646-4711-ad58-d98a5fa3612c", ram, availableIp.getIp());
    assertNotNull(createdServer);
    assert serverLatestJobCompleted.apply(createdServer);

    // get server by name
    Set<Server> response = api.getServerServices().getServersByName(nameOfServer);
    assert (response.size() == 1);

    // restart the server
    api.getServerServices().power(nameOfServer, PowerCommand.RESTART);

    Set<Job> jobs = api.getJobServices().getJobsForObjectName(nameOfServer);
    assert ("RestartVirtualServer".equals(Iterables.getLast(jobs).getCommand().getName()));

    assert serverLatestJobCompleted.apply(createdServer);

    int serverCountAfterAddingOneServer = api.getServerServices().getServerList().size();
    assert serverCountAfterAddingOneServer == serverCountBeforeTest
            + 1 : "There should be +1 increase in the number of servers since the test started";

    // delete the server
    api.getServerServices().deleteByName(nameOfServer);

    jobs = api.getJobServices().getJobsForObjectName(nameOfServer);
    assert ("DeleteVirtualServer".equals(Iterables.getLast(jobs).getCommand().getName()));

    assert serverLatestJobCompleted.apply(createdServer);

    int serverCountAfterDeletingTheServer = api.getServerServices().getServerList().size();
    assert serverCountAfterDeletingTheServer == serverCountBeforeTest : "There should be the same # of servers as since the test started";

    // make sure that IP is put back to "unassigned"
    assert api.getIpServices().getUnassignedIpList().contains(availableIp);
}

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From source file:cd.go.contrib.elasticagents.marathon.MarathonInstance.java

public static MarathonInstance instanceFromApp(App app, PluginSettings settings) {
    Map<String, String> autoRegisterProperties = new HashMap<>();
    autoRegisterProperties.put("GO_EA_AUTO_REGISTER_KEY", app.getEnv().get("GO_EA_AUTO_REGISTER_KEY"));
    autoRegisterProperties.put("GO_EA_AUTO_REGISTER_ENVIRONMENT",
            app.getEnv().get("GO_EA_AUTO_REGISTER_ENVIRONMENT"));
    autoRegisterProperties.put("GO_EA_AUTO_REGISTER_ELASTIC_AGENT_ID",
            app.getEnv().get("GO_EA_AUTO_REGISTER_ELASTIC_AGENT_ID"));
    autoRegisterProperties.put("GO_EA_AUTO_REGISTER_ELASTIC_PLUGIN_ID",
            app.getEnv().get("GO_EA_AUTO_REGISTER_ELASTIC_PLUGIN_ID"));

    DateTime createdTime = new DateTime();

    if (app.getTasks() != null) {
        if (app.getTasks().size() > 0) {
            createdTime = new DateTime(Iterables.get(app.getTasks(), 0).getStagedAt());
        }/*from   w ww  .  j a v  a2s.c om*/
    }

    Gson gson = new Gson();
    List<String> constraintList = new ArrayList<>();

    for (List<String> constraint : app.getConstraints()) {
        constraintList.add(gson.toJson(constraint));
    }
    String constraints = String.join("\n", constraintList);

    String uris = app.getUris() == null ? "" : String.join("\n", app.getUris());

    List<String> volumes = new ArrayList<>();
    if (app.getContainer().getVolumes() != null) {
        for (Volume volume : app.getContainer().getVolumes()) {
            volumes.add(volume.getContainerPath() + ":" + volume.getHostPath() + ":" + volume.getMode());
        }
    }
    String vols = String.join("\n", volumes);

    return new MarathonInstance(app.getId().substring(settings.getMarathonPrefix().length()), createdTime,
            app.getEnv().get("GO_EA_AUTO_REGISTER_ENVIRONMENT"), settings.getGoServerUrl(),
            settings.getMarathonPrefix(), app.getContainer().getDocker().getImage(), app.getMem(),
            app.getCpus(), app.getCmd(), app.getEnv().get("GO_EA_USER"), constraints, uris, vols,
            autoRegisterProperties);
}

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From source file:net.lldp.checksims.algorithm.smithwaterman.SmithWatermanAlgorithm.java

/**
 * Compute a Smith-Waterman alignment through exhaustive (but more reliable) process.
 *
 * TODO tests for this (already tested through SmithWaterman)
 *
 * @return Pair of TokenList representing optimal alignments
 * @throws InternalAlgorithmError Thrown if internal error causes violation of preconditions
 *//*  w ww  . ja v  a  2s  .  c  o m*/
public Pair<TokenList, TokenList> computeSmithWatermanAlignmentExhaustive() throws InternalAlgorithmError {
    Map<Integer, Set<Coordinate>> localCandidates;

    // Keep computing while we have results over threshold
    do {
        // Recompute whole array
        localCandidates = computeArraySubset(wholeArray);

        if (localCandidates.isEmpty()) {
            break;
        }

        // Get the largest key
        int largestKey = Ordering.natural().max(localCandidates.keySet());

        // Get matching coordinates
        Set<Coordinate> largestCoords = localCandidates.get(largestKey);

        if (largestCoords == null || largestCoords.isEmpty()) {
            throw new InternalAlgorithmError(
                    "Error: largest key " + largestKey + " maps to null or empty candidate set!");
        }

        // Arbitrarily break ties
        Coordinate chosenCoord = Iterables.get(largestCoords, 0);

        // Get match coordinates
        Set<Coordinate> matchCoords = getMatchCoordinates(chosenCoord);

        // Set match invalid
        setMatchesInvalid(matchCoords);
    } while (!localCandidates.isEmpty());

    // IntelliJ has an aversion to passing anything with a 'y' in it as the right side of a pair
    // This alleviates the warning
    //noinspection SuspiciousNameCombination
    return Pair.of(xList, yList);
}

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