Example usage for com.google.common.io CharStreams asWriter

Introduction

In this page you can find the example usage for com.google.common.io CharStreams asWriter.

Prototype

public static Writer asWriter(Appendable target) 

Source Link

Document

Returns a Writer that sends all output to the given Appendable target.

Usage

From source file:org.glowroot.ui.TransactionJsonService.java

@GET(path = "/backend/transaction/average", permission = "agent:transaction:overview")
String getOverview(@BindAgentRollupId String agentRollupId, @BindRequest TransactionDataRequest request,
        @BindAutoRefresh boolean autoRefresh) throws Exception {
    AggregateQuery query = toChartQuery(request, DataKind.GENERAL);
    long liveCaptureTime = clock.currentTimeMillis();
    List<OverviewAggregate> overviewAggregates = transactionCommonService.getOverviewAggregates(agentRollupId,
            query, autoRefresh);/* w  ww .  j  av a2  s  . co m*/
    if (overviewAggregates.isEmpty() && fallBackToLargestAggregates(query)) {
        // fall back to largest aggregates in case expiration settings have recently changed
        query = withLargestRollupLevel(query);
        overviewAggregates = transactionCommonService.getOverviewAggregates(agentRollupId, query, autoRefresh);
        if (!overviewAggregates.isEmpty()
                && ignoreFallBackData(query, Iterables.getLast(overviewAggregates).captureTime())) {
            // this is probably data from before the requested time period
            overviewAggregates = ImmutableList.of();
        }
    }
    long dataPointIntervalMillis = configRepository.getRollupConfigs().get(query.rollupLevel())
            .intervalMillis();
    List<DataSeries> dataSeriesList = getDataSeriesForTimerChart(request, overviewAggregates,
            dataPointIntervalMillis, liveCaptureTime);
    Map<Long, Long> transactionCounts = getTransactionCounts(overviewAggregates);
    // TODO more precise aggregate when from/to not on rollup grid
    List<OverviewAggregate> overviewAggregatesForMerging = Lists.newArrayList();
    for (OverviewAggregate overviewAggregate : overviewAggregates) {
        long captureTime = overviewAggregate.captureTime();
        if (captureTime > request.from() && captureTime <= request.to()) {
            overviewAggregatesForMerging.add(overviewAggregate);
        }
    }
    MergedAggregate mergedAggregate = AggregateMerging.getMergedAggregate(overviewAggregatesForMerging);

    StringBuilder sb = new StringBuilder();
    JsonGenerator jg = mapper.getFactory().createGenerator(CharStreams.asWriter(sb));
    try {
        jg.writeStartObject();
        jg.writeObjectField("dataSeries", dataSeriesList);
        jg.writeNumberField("dataPointIntervalMillis", dataPointIntervalMillis);
        jg.writeObjectField("transactionCounts", transactionCounts);
        jg.writeObjectField("mergedAggregate", mergedAggregate);
        jg.writeEndObject();
    } finally {
        jg.close();
    }
    return sb.toString();
}

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From source file:org.glowroot.ui.SyntheticMonitorConfigJsonService.java

private static String buildCompilationErrorResponse(List<String> compilationErrors) throws IOException {
    StringBuilder sb = new StringBuilder();
    JsonGenerator jg = mapper.getFactory().createGenerator(CharStreams.asWriter(sb));
    try {//from  ww  w.j av a  2  s . c  o  m
        jg.writeStartObject();
        jg.writeArrayFieldStart("javaSourceCompilationErrors");
        for (String compilationError : compilationErrors) {
            jg.writeString(compilationError);
        }
        jg.writeEndArray();
        jg.writeEndObject();
    } finally {
        jg.close();
    }
    return sb.toString();
}

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From source file:org.glowroot.config.ConfigFile.java

private static String writeValueAsString(Config config) throws IOException {
    CustomPrettyPrinter prettyPrinter = new CustomPrettyPrinter();
    prettyPrinter.indentArraysWith(DefaultIndenter.SYSTEM_LINEFEED_INSTANCE);
    StringBuilder sb = new StringBuilder();
    JsonGenerator jg = mapper.getFactory().createGenerator(CharStreams.asWriter(sb))
            .setPrettyPrinter(prettyPrinter);
    jg.writeObject(config);//from w  w w . j  a va  2s. c om
    jg.close();
    // newline is not required, just a personal preference
    return sb.toString() + NEWLINE;
}

---

From source file:org.glowroot.local.ui.TransactionJsonService.java

@GET("/backend/transaction/profile")
String getProfile(String queryString) throws Exception {
    TransactionProfileRequest request = QueryStrings.decode(queryString, TransactionProfileRequest.class);
    ProfileNode profile = transactionCommonService.getProfile(request.transactionType(),
            request.transactionName(), request.from(), request.to(), request.truncateLeafPercentage());
    StringBuilder sb = new StringBuilder();
    JsonGenerator jg = mapper.getFactory().createGenerator(CharStreams.asWriter(sb));
    jg.writeObject(profile);// ww w  .  j a  v  a 2  s . com
    jg.close();
    return sb.toString();
}

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From source file:org.glowroot.local.ui.ErrorJsonService.java

@GET("/backend/error/tab-bar-data")
String getTabBarData(String queryString) throws Exception {
    TabBarDataRequest request = QueryStrings.decode(queryString, TabBarDataRequest.class);

    String transactionName = request.transactionName();
    long traceCount;
    if (transactionName == null) {
        traceCount = traceDao.readOverallErrorCount(request.transactionType(), request.from(), request.to());
    } else {// w ww.j  a v  a 2s.  co  m
        traceCount = traceDao.readTransactionErrorCount(request.transactionType(), transactionName,
                request.from(), request.to());
    }
    boolean tracesExpired = false;
    if (traceCount == 0) {
        tracesExpired = transactionCommonService.shouldHaveErrorTraces(request.transactionType(),
                transactionName, request.from(), request.to());
    }

    StringBuilder sb = new StringBuilder();
    JsonGenerator jg = mapper.getFactory().createGenerator(CharStreams.asWriter(sb));
    jg.writeStartObject();
    jg.writeNumberField("traceCount", traceCount);
    jg.writeBooleanField("tracesExpired", tracesExpired);
    jg.writeEndObject();
    jg.close();
    return sb.toString();
}

---

From source file:org.glowroot.ui.ErrorJsonService.java

@GET(path = "/backend/error/messages", permission = "agent:error:overview")
String getData(@BindAgentRollupId String agentRollupId, @BindRequest ErrorMessageRequest request,
        @BindAutoRefresh boolean autoRefresh) throws Exception {
    TraceQuery query = ImmutableTraceQuery.builder().transactionType(request.transactionType())
            .transactionName(request.transactionName()).from(request.from()).to(request.to()).build();
    AggregateQuery aggregateQuery = ImmutableAggregateQuery.builder().transactionType(request.transactionType())
            .transactionName(request.transactionName()).from(request.from()).to(request.to())
            .rollupLevel(/*from  w  w w .  j  a  v  a  2  s  .  c  om*/
                    rollupLevelService.getRollupLevelForView(request.from(), request.to(), DataKind.GENERAL))
            .build();
    ErrorMessageFilter filter = ImmutableErrorMessageFilter.builder().addAllIncludes(request.include())
            .addAllExcludes(request.exclude()).build();
    long liveCaptureTime = clock.currentTimeMillis();
    List<ThroughputAggregate> throughputAggregates = transactionCommonService
            .getThroughputAggregates(agentRollupId, aggregateQuery, autoRefresh);
    if (throughputAggregates.isEmpty() && fallBackToLargestAggregates(aggregateQuery)) {
        // fall back to largest aggregates in case expiration settings have recently changed
        aggregateQuery = withLargestRollupLevel(aggregateQuery);
        throughputAggregates = transactionCommonService.getThroughputAggregates(agentRollupId, aggregateQuery,
                autoRefresh);
        if (!throughputAggregates.isEmpty()
                && ignoreFallBackData(aggregateQuery, Iterables.getLast(throughputAggregates).captureTime())) {
            // this is probably data from before the requested time period
            throughputAggregates = ImmutableList.of();
        }
    }
    long dataPointIntervalMillis = configRepository.getRollupConfigs().get(aggregateQuery.rollupLevel())
            .intervalMillis();
    DataSeries dataSeries = new DataSeries(null);
    Map<Long, Long[]> dataSeriesExtra = Maps.newHashMap();
    Map<Long, Long> transactionCountMap = Maps.newHashMap();
    for (ThroughputAggregate unfilteredErrorPoint : throughputAggregates) {
        transactionCountMap.put(unfilteredErrorPoint.captureTime(), unfilteredErrorPoint.transactionCount());
    }
    List<ErrorMessageCount> records = Lists.newArrayList();
    boolean moreAvailable = false;
    if (!throughputAggregates.isEmpty()) {
        long maxCaptureTime = Iterables.getLast(throughputAggregates).captureTime();
        ErrorMessageResult result = traceRepository.readErrorMessages(agentRollupId,
                ImmutableTraceQuery.builder().copyFrom(query).to(maxCaptureTime).build(), filter,
                dataPointIntervalMillis, request.errorMessageLimit());
        List<ErrorPoint> errorPoints = Lists.newArrayList();
        for (ErrorMessagePoint traceErrorPoint : result.points()) {
            long captureTime = traceErrorPoint.captureTime();
            if (captureTime > maxCaptureTime) {
                // traceRepository.readErrorMessages() returns capture time on resolutionMillis,
                // while throughputAggregates may return last capture time at a finer rollup
                // level
                captureTime = maxCaptureTime;
            }
            Long transactionCount = transactionCountMap.get(captureTime);
            if (transactionCount != null) {
                errorPoints.add(
                        ImmutableErrorPoint.of(captureTime, traceErrorPoint.errorCount(), transactionCount));
            }
        }
        populateDataSeries(query, errorPoints, dataSeries, dataSeriesExtra, dataPointIntervalMillis,
                liveCaptureTime);
        records = result.counts().records();
        moreAvailable = result.counts().moreAvailable();
    }
    StringBuilder sb = new StringBuilder();
    JsonGenerator jg = mapper.getFactory().createGenerator(CharStreams.asWriter(sb));
    try {
        jg.writeStartObject();
        jg.writeObjectField("dataSeries", dataSeries);
        jg.writeNumberField("dataPointIntervalMillis", dataPointIntervalMillis);
        jg.writeObjectField("dataSeriesExtra", dataSeriesExtra);
        jg.writeObjectField("errorMessages", records);
        jg.writeBooleanField("moreErrorMessagesAvailable", moreAvailable);
        jg.writeEndObject();
    } finally {
        jg.close();
    }
    return sb.toString();
}

---

From source file:org.glowroot.local.ui.TransactionJsonService.java

@GET("/backend/transaction/summaries")
String getSummaries(String queryString) throws Exception {
    TransactionSummaryRequest request = QueryStrings.decode(queryString, TransactionSummaryRequest.class);

    TransactionSummary overallSummary = transactionCommonService.readOverallSummary(request.transactionType(),
            request.from() + 1, request.to());

    TransactionSummaryQuery query = TransactionSummaryQuery.builder().transactionType(request.transactionType())
            .from(request.from() + 1).to(request.to()).sortOrder(request.sortOrder()).limit(request.limit())
            .build();/*from w  w  w. j  a  v  a2  s  .  com*/
    QueryResult<TransactionSummary> queryResult = transactionCommonService.readTransactionSummaries(query);

    StringBuilder sb = new StringBuilder();
    JsonGenerator jg = mapper.getFactory().createGenerator(CharStreams.asWriter(sb));
    jg.writeStartObject();
    jg.writeFieldName("overall");
    jg.writeObject(overallSummary);
    jg.writeFieldName("transactions");
    jg.writeObject(queryResult.records());
    jg.writeBooleanField("moreAvailable", queryResult.moreAvailable());
    jg.writeEndObject();
    jg.close();
    return sb.toString();
}

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From source file:com.facebook.buck.android.MergeAndroidResourcesStep.java

public static String generateJavaCodeForPackageAndResources(String packageName, SortedSet<Resource> resources) {
    StringBuilder b = new StringBuilder();

    try (PrintWriter writer = new PrintWriter(CharStreams.asWriter(b))) {
        writeJavaCodeForPackageAndResources(writer, packageName, resources);
    } catch (IOException e) {
        // Impossible.
        throw new RuntimeException(e);
    }//from w  w  w  .  ja  v  a  2 s. c  o  m
    return b.toString();
}

---

From source file:org.glowroot.ui.ConfigJsonService.java

@GET(path = "/backend/config/json", permission = "agent:config:view")
String getAllConfig(@BindAgentId String agentId) throws Exception {
    AgentConfig config = configRepository.getAllConfig(agentId);
    ObjectNode configRootNode = mapper.valueToTree(AllConfigDto.create(config));
    ObjectMappers.stripEmptyContainerNodes(configRootNode);
    StringBuilder sb = new StringBuilder();
    JsonGenerator jg = mapper.getFactory().createGenerator(CharStreams.asWriter(sb));
    try {/*  w  w w.  j  ava 2 s  .  c om*/
        jg.setPrettyPrinter(ObjectMappers.getPrettyPrinter());
        jg.writeObject(configRootNode);
    } finally {
        jg.close();
    }
    // newline is not required, just a personal preference
    sb.append(ObjectMappers.NEWLINE);
    return sb.toString();
}

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From source file:com.facebook.buck.rules.MergeAndroidResourcesStep.java

public static String generateJavaCodeForPackageAndResources(String packageName, SortedSet<Resource> resources) {
    StringBuilder b = new StringBuilder();
    Closer closer = Closer.create();/*from www .  java  2  s .c  om*/
    PrintWriter writer = closer.register(new PrintWriter(CharStreams.asWriter(b)));
    try {
        writeJavaCodeForPackageAndResources(writer, packageName, resources);
    } catch (IOException e) {
        // Impossible.
        throw new RuntimeException(e);
    } finally {
        try {
            closer.close();
        } catch (IOException e) {
            Throwables.propagate(e);
        }
    }
    return b.toString();
}

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