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

@Nullable
public static <T> T get(Iterable<? extends T> iterable, int position, @Nullable T defaultValue) 

Source Link

Document

Returns the element at the specified position in an iterable or a default value otherwise.

Usage

From source file:edu.udo.scaffoldhunter.gui.data.MessageModel.java

@Override
public Object getChild(Object parent, int index) {
    if (parent == root) {
        Object child = Iterables.get(jobs.values(), index, null);
        logger.trace("getChild at index {} : {}", index, child);
        return child;
    }//from  w  ww. ja  v  a2 s .  c o m
    if (!(parent instanceof MessageTreeNode)) {
        logger.trace("getChild at index {} : null", index);
        return null;
    }
    Object child = ((MessageTreeNode<?>) parent).getChild(index);
    logger.trace("getChild at index {} : {}", index, child);
    return child;
}

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From source file:diskCacheV111.srm.dcache.DcacheUserManager.java

public DcacheUserManager(LoginStrategy loginStrategy, DataSource dataSource, String type) {
    this.loginStrategy = loginStrategy;
    this.jdbcTemplate = new JdbcTemplate(dataSource);
    this.persistence = new CanonicalizingByteArrayStore((id, encoded) -> jdbcTemplate
            .update("INSERT INTO srmuser (id, type, encoded) VALUES(?,?,?)", ps -> {
                ps.setLong(1, id);//from   w  w w  . java  2 s  .co  m
                ps.setString(2, type);
                ps.setBytes(3, encoded);
            }),
            id -> Iterables.get(jdbcTemplate.query("SELECT encoded FROM srmuser WHERE id = ?",
                    (rs, rowNum) -> rs.getBytes(1), id), 0, null),
            id -> jdbcTemplate.update("DELETE FROM srmuser WHERE id=?", id));
}

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From source file:edu.mit.streamjit.impl.common.IOInfo.java

/**
 * Creates IOInfo objects for all edges of the given set of workers.  The workers
 * must have their predecessor/successor relationships initialized, but they
 * need not be connected with channels.  The given set need not be
 * connected (in the reachability sense).
 * @param workers a set of workers/*from w  w w. jav  a2  s .  c  o  m*/
 * @return a set of IOInfo objects for all edges of the given set
 */
public static ImmutableSet<IOInfo> allEdges(Set<? extends Worker<?, ?>> workers) {
    //TODO: we'll get most edges twice, once while traversing preds and once
    //for succs.  Using a sorted set is a total hack.
    ImmutableSortedSet.Builder<IOInfo> retval = ImmutableSortedSet.orderedBy(IOInfo.TOKEN_SORT);
    boolean overallInput = false;
    boolean overallOutput = false;
    for (Worker<?, ?> w : workers) {
        List<? extends Worker<?, ?>> preds = Workers.getPredecessors(w);
        List<? extends Channel<?>> ichans = Workers.getInputChannels(w);
        checkArgument((preds.size() == ichans.size()) || (preds.isEmpty() && ichans.size() == 1));
        if (preds.isEmpty()) {
            checkArgument(!overallInput, "two overall inputs?!");
            Channel<?> chan = Iterables.get(ichans, 0, null);
            retval.add(new IOInfo(null, w, chan, Blob.Token.createOverallInputToken(w), ConnectionKind.INPUT));
            overallInput = true;
        }
        for (int i = 0; i < preds.size(); ++i) {
            Worker<?, ?> pred = preds.get(i);
            Channel<?> chan = Iterables.get(ichans, i, null);
            Blob.Token token = new Blob.Token(pred, w);
            retval.add(new IOInfo(pred, w, chan, token,
                    workers.contains(pred) ? ConnectionKind.INTERNAL : ConnectionKind.INPUT));
        }
    }
    for (Worker<?, ?> w : workers) {
        List<? extends Worker<?, ?>> succs = Workers.getSuccessors(w);
        List<? extends Channel<?>> ochans = Workers.getOutputChannels(w);
        checkArgument((succs.size() == ochans.size()) || (succs.isEmpty() && ochans.size() == 1));
        if (succs.isEmpty()) {
            checkArgument(!overallOutput, "two overall outputs?!");
            Channel<?> chan = Iterables.get(ochans, 0, null);
            retval.add(
                    new IOInfo(w, null, chan, Blob.Token.createOverallOutputToken(w), ConnectionKind.OUTPUT));
            overallOutput = true;
        }
        for (int i = 0; i < succs.size(); ++i) {
            Worker<?, ?> succ = succs.get(i);
            Channel<?> chan = Iterables.get(ochans, i, null);
            Blob.Token token = new Blob.Token(w, succ);
            retval.add(new IOInfo(w, succ, chan, token,
                    workers.contains(succ) ? ConnectionKind.INTERNAL : ConnectionKind.OUTPUT));
        }
    }
    return retval.build();
}

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From source file:brooklyn.entity.cloudfoundry.CloudFoundryEntityImpl.java

protected CloudFoundryPaasLocation getLocationOrNull() {
    return Iterables.get(Iterables.filter(getLocations(), CloudFoundryPaasLocation.class), 0, null);
}

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From source file:foo.domaintest.email.AutoreplyAction.java

@Override
public void run() {
    if (!presentedApiKey.equals(requiredApiKey)) {
        throw new BadRequestException("Invalid API key");
    }/* ww  w . j  av a 2s .  c om*/
    Iterable<String> subjectWords = Splitter.on(CharMatcher.WHITESPACE).omitEmptyStrings().trimResults()
            .split(nullToEmpty(subject));
    // For spam-ignoring purposes, we only respond if the subject starts with the word "TEST".
    if (!"TEST".equalsIgnoreCase(getFirst(subjectWords, null))) {
        logger.info("Subject did not begin with the word 'TEST'");
        return;
    }
    String newBody = null;
    // Try to consider the second word (if any) as a stash token. If it is one, stash the headers.
    String token = Iterables.get(subjectWords, 1, null);
    if (token != null && memcache.load(new Key(TOKEN, token)) != null) {
        Map<String, Object> params = new HashMap<>();
        params.put("payload", rawHeaders);
        memcache.save(new Key(STASH, token), params, STASH_EXPIRATION);
        newBody = tempUrlFactory.getTempUrl(token);
    }
    String newSender = "tester@" + Splitter.on('@').splitToList(to).get(1);
    String newRecipient = Optional.fromNullable(replyTo).or(from);
    // We construct the references and in-reply-to headers according to RFC 5322 3.6.4. The new
    // references is the old message id. The new in-reply-to is the old references plus the old
    // message id. If there's no old references but there is an old in-reply-to with exactly one id,
    // we use that in place of the references.
    String newInReplyTo = messageId;
    if (isNullOrEmpty(references) && !isNullOrEmpty(inReplyTo) && !WHITESPACE.matchesAnyOf(inReplyTo.trim())) {
        references = inReplyTo;
    }
    String newReferences = emptyToNull(Joiner.on(' ').skipNulls().join(references, messageId));
    logger.info(String.format("Sending from %s to %s", newSender, newRecipient));
    logger.info(String.format("in-reply-to: %s, references: %s", newInReplyTo, newReferences));
    emailer.send(newSender, newRecipient, newBody, newInReplyTo, newReferences);
}

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From source file:org.apache.brooklyn.entity.openshift.OpenShiftEntityImpl.java

protected OpenShiftPaasLocation getLocationOrNull() {
    return Iterables.get(Iterables.filter(getLocations(), OpenShiftPaasLocation.class), 0, null);
}

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From source file:com.flaptor.indextank.storage.RawLog.java

public Segment getFirstSegment() {
    Segment segment = Iterables.get(Segment.iterateSegments(root, root.getHistoryLogPath()), 0, null);
    if (segment == null) {
        segment = Iterables.get(Segment.iterateSegments(root, root.getLiveLogPath()), 0, null);
    }/*from   w  w  w . j a  va 2 s.c  om*/
    return segment;
}

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From source file:org.wisdom.ebean.runtime.EbeanCrudService.java

/**
 * Retrieves the entity matching the given filter. If several entities matches, the first is returned.
 *
 * @param filter the filter/* w  w  w  .  j  a va  2 s .  co  m*/
 * @return the first matching instance, {@literal null} if none
 */
@Override
public T findOne(final EntityFilter<T> filter) {
    return Iterables.get(findAll(filter), 0, null);
}

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From source file:com.jive.myco.seyren.core.service.notification.FlowdockNotificationService.java

private String formatContent(List<String> emojis, Check check, Subscription subscription, List<Alert> alerts) {
    String url = String.format("%s/#/checks/%s", seyrenConfig.getBaseUrl(), check.getId());
    String alertsString = Joiner.on(", ").join(transform(alerts, new Function<Alert, String>() {
        @Override//  w  w  w  .  j  a  va  2  s  .  c  o  m
        public String apply(Alert input) {
            return String.format("%s: %s", input.getTarget(), input.getValue().toString());
        }
    }));
    return String.format("%s %s has entered its %s state - [%s] - %s - %s",
            Iterables.get(emojis, check.getState().ordinal(), ""), check.getName(), check.getState().toString(),
            alertsString, Iterables.getFirst(alerts, null).getTimestamp(), url);
}

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From source file:com.jive.myco.seyren.core.service.notification.SlackNotificationService.java

private String formatContent(List<String> emojis, Check check, Subscription subscription, List<Alert> alerts) {
    String url = String.format("%s/#/checks/%s", seyrenConfig.getBaseUrl(), check.getId());
    String alertsString = Joiner.on(", ").join(transform(alerts, new Function<Alert, String>() {
        @Override//  ww w.  j  av  a 2 s .com
        public String apply(Alert input) {
            return String.format("%s: %s", input.getTarget(), input.getValue().toString());
        }
    }));
    return String.format("[%s] %s %s has entered its %s state - [%s] - %s",
            Iterables.getFirst(alerts, null).getTimestamp(),
            Iterables.get(emojis, check.getState().ordinal(), ""), check.getName(), check.getState().toString(),
            alertsString, url);
}

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