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

Introduction

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

Prototype

public static <T> T getLast(Iterable<T> iterable)

Source Link

Document

Returns the last element of iterable .

Usage

From source file:com.google.jimfs.JimfsPath.java

/**
 * Returns the file name of this path. Unlike {@link #getFileName()}, this may return the name of
 * the root if this is a root path.//  w ww .j av  a2 s .  c o m
 */
@Nullable
public Name name() {
    if (!names.isEmpty()) {
        return Iterables.getLast(names);
    }
    return root;
}

From source file:com.haulmont.cuba.web.exception.NoUserSessionHandler.java

@Override
protected void doHandle(App app, String className, String message, @Nullable Throwable throwable) {
    try {//ww  w.j a va  2s  .  c  om
        // we may show two or more dialogs if user pressed F5 and we have no valid user session
        // just remove previous dialog and show new
        if (noUserSessionDialog != null) {
            app.getAppUI().removeWindow(noUserSessionDialog);
        }

        Messages messages = AppBeans.get(Messages.NAME);

        WebWindowManager wm = app.getWindowManager();
        wm.showOptionDialog(messages.getMainMessage("dialogs.Information", locale),
                messages.getMainMessage("noUserSession.message", locale), Frame.MessageType.CONFIRMATION,
                new Action[] { new LoginAction() });

        Collection<Window> windows = app.getAppUI().getWindows();
        if (!windows.isEmpty()) {
            noUserSessionDialog = Iterables.getLast(windows);
        }
    } catch (Throwable th) {
        log.error("Unable to handle NoUserSessionException", throwable);
        log.error("Exception in NoUserSessionHandler", th);
    }
}

From source file:org.eclipse.tracecompass.statesystem.core.tests.stubs.backend.HistoryTreeStub.java

/**
 * Get the latest leaf of the tree/*from   w ww .  ja va2  s.  c  om*/
 *
 * @return The current leaf node of the tree
 */
public HTNode getLatestLeaf() {
    List<HTNode> latest = getLatestBranch();
    return Iterables.getLast(latest);
}

From source file:com.willwinder.universalgcodesender.gcode.processors.LineSplitter.java

@Override
public List<String> processCommand(String commandString, GcodeState state) throws GcodeParserException {
    List<GcodeParser.GcodeMeta> commands = GcodeParser.processCommand(commandString, 0, state);

    List<String> results = new ArrayList<>();

    Code code = hasLine(commands);/*from   www. j a  v  a 2 s  .co  m*/
    if (code == null) {
        return Collections.singletonList(commandString);
    }

    SplitCommand sc = GcodePreprocessorUtils.extractMotion(code, commandString);
    if (sc.remainder.length() > 0) {
        results.add(sc.remainder);
    }

    GcodeMeta command = Iterables.getLast(commands);

    if (command == null || command.point == null) {
        throw new GcodeParserException("Internal parser error: missing data.");
    }

    // line length
    Position start = state.currentPoint;
    Position end = command.point.point();
    Position current = start;
    double length = start.distance(end);

    // Check if line needs splitting.
    if (length > this.maxSegmentLength) {
        int numSegments = (int) Math.ceil(length / this.maxSegmentLength);
        double segmentLength = length / Math.ceil(length / this.maxSegmentLength);

        // Create line segments, stop before the last one which uses the end point.
        for (int i = 1; i < numSegments; i++) {
            double k = 1 / (length / (i * segmentLength));
            double newX = start.x + k * (end.x - start.x);
            double newY = start.y + k * (end.y - start.y);
            double newZ = start.z + k * (end.z - start.z);

            Position next = new Position(newX, newY, newZ, start.getUnits());
            results.add(GcodePreprocessorUtils.generateLineFromPoints(command.code, current, next,
                    command.state.inAbsoluteMode, null));
            current = next;
        }

        // Add the last line point.
        results.add(GcodePreprocessorUtils.generateLineFromPoints(command.code, current, end,
                command.state.inAbsoluteMode, null));
    } else {
        return Collections.singletonList(commandString);
    }

    return results;
}

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

SnitchService(Properties properties, String groupArtifactId, Class mainClass) {
    checkNotNull(properties, "properties");
    this.gavKeys = ImmutableList.copyOf(
            Iterables.limit(Splitter.on(':').split(CharMatcher.is('.').replaceFrom(groupArtifactId, '-')), 2));
    this.hostKeys = ImmutableList.of(getHostname());
    String simplifiedMainClassName = Iterables.getLast(Splitter.on('.').split(mainClass.getName()));
    this.methodKeys = ImmutableList.of(simplifiedMainClassName);
}

From source file:com.github.fge.jsonpatch.ReplaceOperation.java

@Override
public JsonNode apply(final JsonNode node) throws JsonPatchException {
    /*//  ww w  .j  av  a2  s.  c  o m
     * FIXME cannot quite be replaced by a remove + add because of arrays.
     * For instance:
     *
     * { "op": "replace", "path": "/0", "value": 1 }
     *
     * with
     *
     * [ "x" ]
     *
     * If remove is done first, the array is empty and add rightly complains
     * that there is no such index in the array.
     */
    if (path.path(node).isMissingNode())
        throw new JsonPatchException(BUNDLE.getMessage("jsonPatch.noSuchPath"));
    final JsonNode replacement = value.deepCopy();
    if (path.isEmpty())
        return replacement;
    final JsonNode ret = node.deepCopy();
    final JsonNode parent = path.parent().get(ret);
    final String rawToken = Iterables.getLast(path).getToken().getRaw();
    if (parent.isObject())
        ((ObjectNode) parent).replace(rawToken, replacement);
    else
        ((ArrayNode) parent).set(Integer.parseInt(rawToken), replacement);
    return ret;
}

From source file:org.apache.aurora.scheduler.storage.StorageBackfill.java

private static void guaranteeShardUniqueness(ScheduledTask task, TaskStore.Mutable taskStore, Clock clock) {

    if (Tasks.isActive(task.getStatus())) {
        // Perform a sanity check on the number of active shards.
        Query.Builder query = Query.instanceScoped(IJobKey.build(task.getAssignedTask().getTask().getJob()),
                task.getAssignedTask().getInstanceId()).active();
        Set<String> activeTasksInShard = FluentIterable.from(taskStore.fetchTasks(query))
                .transform(Tasks.SCHEDULED_TO_ID).toSet();

        if (activeTasksInShard.size() > 1) {
            SHARD_SANITY_CHECK_FAILS.incrementAndGet();
            LOG.severe("Active shard sanity check failed when loading " + Tasks.id(task)
                    + ", active tasks found: " + activeTasksInShard);

            // We want to keep exactly one task from this shard, so sort the IDs and keep the
            // highest (newest) in the hopes that it is legitimately running.
            String newestTask = Iterables.getLast(Sets.newTreeSet(activeTasksInShard));
            if (Tasks.id(task).equals(newestTask)) {
                LOG.info("Retaining task " + Tasks.id(task));
            } else {
                task.setStatus(ScheduleStatus.KILLED);
                task.addToTaskEvents(new TaskEvent(clock.nowMillis(), ScheduleStatus.KILLED)
                        .setMessage("Killed duplicate shard."));
                // TODO(wfarner); Circle back if this is necessary.  Currently there's a race
                // condition between the time the scheduler is actually available without hitting
                // IllegalStateException (see DriverImpl).
                // driver.killTask(Tasks.id(task));
            }/*  www . j a  v  a2 s .  com*/
        }
    }
}

From source file:net.holmes.core.business.streaming.airplay.controlpoint.CommandResponse.java

/**
 * Decode Http response.//from   w w  w. j  a  v  a2  s  .com
 *
 * @param responseLines response lines
 */
public void decodeHttpResponse(final List<String> responseLines) {
    // Decode http response on first line
    Matcher matcher = HTTP_RESPONSE_PATTERN.matcher(responseLines.get(0));
    if (matcher.find()) {
        code = Integer.valueOf(matcher.group(2));
        message = matcher.group(3);
    }

    // Decode http headers on next lines
    for (int i = 1; i < responseLines.size(); i++) {
        Iterable<String> it = Splitter.on(PARAMETER_SEPARATOR).trimResults().split(responseLines.get(i));
        httpHeaders.put(Iterables.get(it, 0), Iterables.getLast(it));
    }
}

From source file:org.sonar.cxx.checks.SwitchLastCaseIsDefaultCheck.java

@Override
public void visitNode(AstNode node) {
    List<AstNode> switchCases = getSwitchCases(node);
    int defaultCaseIndex = Iterables.indexOf(switchCases, DEFAULT_CASE_NODE_FILTER);

    if (defaultCaseIndex == -1) {
        getContext().createLineViolation(this, MISSING_DEFAULT_CASE_MESSAGE, node);
    } else {//from   w w  w. j a v  a  2  s.  c o  m
        AstNode defaultCase = Iterables.get(switchCases, defaultCaseIndex);

        if (!defaultCase.equals(Iterables.getLast(switchCases))) {
            getContext().createLineViolation(this, DEFAULT_CASE_IS_NOT_LAST_MESSAGE, defaultCase);
        }
    }
}

From source file:org.sosy_lab.cpachecker.cpa.statistics.StatisticsCPAStatistics.java

@SuppressWarnings("unchecked")
@Override// www .  ja va  2 s .  c o  m
public void printStatistics(PrintStream out, Result result, ReachedSet reached) {
    StatisticsData statistics;
    if (cpa.isAnalysis()) {
        statistics = cpa.getFactory().getGlobalAnalysis();
    } else {
        StatisticsState lastState = (StatisticsState) reached.getLastState();
        if (lastState == null) {
            lastState = (StatisticsState) Iterables.getLast(reached);
        }

        statistics = lastState.getStatistics();
    }

    Map<String, Object> jsonMap = new HashMap<>();
    for (Entry<StatisticsProvider, StatisticsDataProvider> entry : statistics) {
        StatisticsProvider provider = entry.getKey();
        StatisticsDataProvider data = entry.getValue();
        String propName = provider.getPropertyName();
        Object value = data.getPropertyValue();
        String mergeInfo = "";
        if (!cpa.isAnalysis()) {
            String mergeType = provider.getMergeType();
            mergeInfo = "_" + mergeType;
            // Save in json with merge type
            Map<String, Object> innerJsonMap;
            if (jsonMap.containsKey(propName)) {
                innerJsonMap = (Map<String, Object>) jsonMap.get(propName);
            } else {
                innerJsonMap = new HashMap<>();
                jsonMap.put(propName, innerJsonMap);
            }
            innerJsonMap.put(mergeType, value);
        } else {
            // Save in json without merge type
            jsonMap.put(propName, value);
        }
        out.println("\t" + propName + mergeInfo + ": " + value);
    }

    if (statisticsCPAFile != null) {
        try {
            JSON.writeJSONString(jsonMap, statisticsCPAFile);
        } catch (IOException e) {
            logger.logUserException(Level.WARNING, e, "Could not write statistics to file");
        }
    }
}