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:org.obm.xml.AcceptDifferentNamespaceXMLUnit.java

private static String getNodeNameWithoutNamespace(String nodeName) {
    Iterable<String> splitedName = Splitter.on(':').omitEmptyStrings().split(nodeName);
    if (Iterables.size(splitedName) == 2) {
        nodeName = Iterables.get(splitedName, 1);
    } else {//  ww  w. j  av a 2 s  . com
        throw new IllegalArgumentException("The node name is illegal : " + nodeName);
    }
    return nodeName;
}

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From source file:org.asoem.greyfish.core.actions.FemaleLikeMating.java

@Override
protected ImmutableACLMessage.Builder<A> createCFP(final AgentContext<A> context) {
    final int sensedMatesCount = Iterables.size(sensedMates);
    assert (sensedMatesCount > 0); // see #evaluateCondition(Simulation)

    final A receiver = Iterables.get(sensedMates, RandomGenerators.rng().nextInt(sensedMatesCount));
    sensedMates = ImmutableList.of();/*from   ww w .j ava 2 s.  com*/

    return ImmutableACLMessage.<A>builder().sender(context.agent()).performative(ACLPerformative.CFP)
            .ontology(ontology)
            // Choose randomly one receiver. Adding evaluates possible candidates as receivers will decrease the performance in high density populations!
            .addReceiver(receiver);
}

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From source file:co.cask.cdap.internal.app.runtime.webapp.ServePathGenerator.java

private String findPath(String hostHeader, String path, String query) {
    // First try firstPathPart/src/restPath
    Iterable<String> pathParts = Splitter.on('/').limit(2).split(path);
    String servePath;/*www. j  a  v a  2s .  c  o  m*/
    if (Iterables.size(pathParts) > 1) {
        String part1 = Iterables.get(pathParts, 1);
        if (part1.startsWith(GATEWAY_PATH_V3) || part1.equals("status")) {
            return constructPath(part1, query);
        }

        servePath = String.format("%s/%s/%s%s%s", baseDir, hostHeader, Iterables.get(pathParts, 0), SRC_PATH,
                Iterables.get(pathParts, 1));
        if (fileExists.apply(servePath)) {
            return servePath;
        }

    } else if (Iterables.size(pathParts) == 1) {
        servePath = String.format("%s/%s/%s%s%s", baseDir, hostHeader, Iterables.get(pathParts, 0), SRC_PATH,
                "index.html");
        if (fileExists.apply(servePath)) {
            return servePath;
        }
    }

    // Next try src/path
    if (path.startsWith(GATEWAY_PATH_V3) || path.equals("status")) {
        return constructPath(path, query);
    }

    path = path.isEmpty() ? "index.html" : path;
    servePath = String.format("%s/%s%s%s", baseDir, hostHeader, SRC_PATH, path);
    if (fileExists.apply(servePath)) {
        return servePath;
    }

    return null;
}

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From source file:fr.putnami.pwt.core.model.client.util.ModelUtils.java

public static <A, B> A resolveValue(Object bean, Model<B> model, Path path) {
    if (model == null || path.isEmpty()) {
        return (A) bean;
    }// w w  w .  j a v a 2 s.c  o m

    PathElement firstElement = path.get(0);
    String firstElementName = firstElement.getElementName();
    firstElementName = firstElementName == null ? Path.ROOT_PATH : firstElementName;
    Integer firstElementIndex = firstElement.getIndexKey();

    Object value = bean;
    Model<?> leafModel = model;
    if (leafModel instanceof ModelCollection) {
        leafModel = ((ModelCollection<?>) model).getLeafModel();
    }

    if (leafModel != null && !Path.ROOT_PATH.equals(firstElementName)) {
        value = leafModel.get(bean, firstElementName);
    }

    if (firstElementIndex != null && value instanceof Collection) {
        Collection<?> collection = (Collection<?>) value;
        if (collection.size() > firstElement.getIndexKey()) {
            value = Iterables.get(collection, firstElementIndex);
        } else {
            value = null;
        }
    }

    if (path.size() == 1) {
        return (A) value;
    }
    if (!Path.ROOT_PATH.equals(firstElementName)) {
        leafModel = leafModel.getProperty(firstElementName).getModel();
    }
    return ModelUtils.resolveValue(value, leafModel, path.subPath(1));
}

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From source file:com.yahoo.yqlplus.engine.internal.tasks.GraphPlanner.java

/**
 * Plan a graph of tasks using the terminal step as a starting point. Discover all of the used steps from those roots, and then return the starting task.
 *///  w  ww .  ja  v  a2s  . c o  m
public ForkTask plan(Step root) {
    Map<Step, Node> nodes = Maps.newIdentityHashMap();

    discover(root, nodes);

    for (Map.Entry<Step, Node> e : nodes.entrySet()) {
        for (Step dep : e.getValue().inputs) {
            nodes.get(dep).deps.add(e.getKey());
        }
    }

    for (Map.Entry<Step, Node> e : nodes.entrySet()) {
        if (e.getValue().inputs.isEmpty()) {
            populateAvailable(e.getValue(), Sets.<Value>newIdentityHashSet(), nodes);
        }
    }

    boolean modified = true;
    List<Step> keys = Lists.newArrayList();
    while (modified) {
        modified = false;
        // we plan to modify the map, so copy the set of keys before iteration
        keys.clear();
        keys.addAll(nodes.keySet());
        for (Step key : keys) {
            Node node = nodes.get(key);
            if (node == null) {
                continue;
            }
            if (node.deps.size() == 1) {
                // if we are the only input to that dep...
                Step dep = Iterables.get(node.deps, 0);
                if (dep.getInputs().size() == 1) {
                    // then merge into that
                    Node target = nodes.get(dep);
                    node.todo.addAll(target.todo);
                    target.todo = node.todo;
                    target.inputs.remove(key);
                    for (Step p : node.inputs) {
                        nodes.get(p).deps.remove(key);
                        nodes.get(p).deps.add(dep);
                    }
                    target.inputs.addAll(node.inputs);
                    target.available.addAll(node.available);
                    nodes.remove(key);
                    modified = true;
                }
            }
        }
    }

    // so now all remaining nodes have 0 or > 1 deps
    // the 0 deps nodes are "ending" nodes, and the > deps nodes are fork nodes

    // set up the run & end nodes
    ForkTask start = new ForkTask();

    Map<Set<Step>, JoinTask> joinTasks = Maps.newHashMap();

    for (Node n : nodes.values()) {
        n.run = new RunTask(n.todo);
        n.run.setAvailable(n.available);
        if (n.inputs.size() > 1) {
            Set<Step> key = ImmutableSet.copyOf(n.inputs);
            JoinTask join = joinTasks.get(key);
            if (join == null) {
                join = new JoinTask();
                joinTasks.put(key, join);
                join.setAvailable(Sets.<Value>newIdentityHashSet());
            }
            join.addNext(n.run);
            join.getAvailable().addAll(n.available);
            n.next = join;
        } else {
            n.next = n.run;
        }
    }

    for (Node n : nodes.values()) {
        if (n.inputs.isEmpty()) {
            start.addNext(n.next);
        }
        for (Step dep : n.deps) {
            Node node = nodes.get(dep);
            if (node.next instanceof JoinTask) {
                ((JoinTask) node.next).getPriors().add(n.run);
            }
            n.run.addNext(node.next);
        }
    }

    return start;
}

---

From source file:org.jbb.board.web.forum.controller.AcpForumController.java

@RequestMapping(method = RequestMethod.GET)
public String forumGet(@RequestParam(value = "id", required = false) Long forumId, Model model) {
    ForumForm form = new ForumForm();

    List<ForumCategory> allCategories = boardService.getForumCategories();
    List<ForumCategoryRow> categoryDtos = allCategories.stream().map(this::mapToForumCategoryDto)
            .collect(Collectors.toList());
    model.addAttribute("availableCategories", categoryDtos);

    if (forumId == null) {
        model.addAttribute(EDIT_POSSIBLE, permissionService.checkPermission(CAN_ADD_FORUMS));
        form.setCategoryId(Iterables.get(allCategories, 0).getId());
    } else {//from  www  . j a  va2  s. c o m
        model.addAttribute(EDIT_POSSIBLE, permissionService.checkPermission(CAN_MODIFY_FORUMS));
        Forum forum = forumService.getForum(forumId);
        form.setId(forum.getId());
        form.setName(forum.getName());
        form.setDescription(forum.getDescription());
        form.setClosed(forum.isClosed());

        ForumCategory category = forumCategoryService.getCategoryWithForum(forum);
        form.setCategoryId(category.getId());
    }

    if (!model.containsAttribute(FORUM_FORM)) {
        model.addAttribute(FORUM_FORM, form);
    }
    return VIEW_NAME;
}

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From source file:org.apache.whirr.service.chef.ChefClusterActionHandler.java

private static Predicate<String> isFirstChefRoleIn(final Iterable<String> roles) {
    return new Predicate<String>() {
        @Override/*  w  w w. jav a  2 s  . com*/
        public boolean apply(String arg0) {
            return Iterables
                    .get(Iterables.filter(roles, Predicates.containsPattern("^" + CHEF_ROLE_PREFIX + arg0)), 0)
                    .equals(CHEF_ROLE_PREFIX + arg0);
        }

        @Override
        public String toString() {
            return "isFirstChefRoleIn(" + roles + ")";

        }
    };
}

---

From source file:org.dcache.resilience.util.RandomSelectionStrategy.java

@Override
public String apply(Collection<String> collection) {
    if (collection.isEmpty()) {
        return null;
    }/*from   ww w  .j a va 2s  .c om*/

    return Iterables.get(collection, random.nextInt(collection.size()));
}

---

From source file:org.richfaces.webapp.PushServletContainerInitializer.java

/**
 * If Atmosphere is on classpath and {@link PushFilter} wasn't registered in current {@link ServletContext},
 *
 * the {@link PushServlet} will be registered automatically.
 */// ww w .ja  v a  2 s .com
@Override
public void onStartup(Set<Class<?>> clasess, ServletContext servletContext) throws ServletException {
    if (Boolean.valueOf(servletContext.getInitParameter(SKIP_SERVLET_REGISTRATION_PARAM))) {
        return;
    }

    if (!isAtmospherePresent()) {
        return;
    }

    if (hasFilterMapping(PushFilter.class, servletContext)) {
        return;
    }

    try {
        String pushHandlerMapping;

        ServletRegistration servletRegistration = getServletRegistration(PushServlet.class, servletContext);
        if (servletRegistration == null) {
            registerPushServlet(servletContext);
            pushHandlerMapping = PUSH_CONTEXT_DEFAULT_MAPPING;
        } else {
            pushHandlerMapping = Iterables.get(servletRegistration.getMappings(), 0);
        }

        servletContext.setAttribute(PushContextFactoryImpl.PUSH_HANDLER_MAPPING_ATTRIBUTE, pushHandlerMapping);
    } catch (Exception e) {
        servletContext.log(MessageFormat.format("Caught exception when registering RichFaces Push Servlet: {0]",
                e.getMessage()), e);
    }
}

---

From source file:org.jclouds.gogrid.compute.strategy.GoGridAddNodeWithTagStrategy.java

@Override
public NodeMetadata addNodeWithTag(String tag, String name, Template template) {
    Server addedServer = null;// ww w  . ja  v  a2  s  . co  m
    boolean notStarted = true;
    int numOfRetries = 20;
    // lock-free consumption of a shared resource: IP address pool
    while (notStarted) { // TODO: replace with Predicate-based thread
        // collision avoidance for
        // simplicity
        Set<Ip> availableIps = client.getIpServices().getIpList(new GetIpListOptions().onlyUnassigned()
                .onlyWithType(IpType.PUBLIC).inDatacenter(template.getLocation().getId()));
        if (availableIps.size() == 0)
            throw new RuntimeException("No public IPs available on this identity.");
        int ipIndex = new SecureRandom().nextInt(availableIps.size());
        Ip availableIp = Iterables.get(availableIps, ipIndex);
        try {
            addedServer = addServer(name, template, availableIp);
            notStarted = false;
        } catch (Exception e) {
            if (--numOfRetries == 0)
                Throwables.propagate(e);
            notStarted = true;
        }
    }
    if (template.getOptions().shouldBlockUntilRunning()) {
        serverLatestJobCompleted.apply(addedServer);
        client.getServerServices().power(addedServer.getName(), PowerCommand.START);
        serverLatestJobCompletedShort.apply(addedServer);
        addedServer = Iterables
                .getOnlyElement(client.getServerServices().getServersByName(addedServer.getName()));
    }
    return serverToNodeMetadata.apply(addedServer);
}

---

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