Example usage for com.fasterxml.jackson.core JsonGenerator writeStartObject

List of usage examples for com.fasterxml.jackson.core JsonGenerator writeStartObject

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Introduction

In this page you can find the example usage for com.fasterxml.jackson.core JsonGenerator writeStartObject.

Prototype

public abstract void writeStartObject() throws IOException, JsonGenerationException;

Source Link

Document

Method for writing starting marker of a JSON Object value (character '{'; plus possible white space decoration if pretty-printing is enabled).

Usage

From source file:net.echinopsii.ariane.community.plugin.rabbitmq.directory.json.RabbitmqNodeJSON.java

public final static void manyRabbitmqNodes2JSON(HashSet<RabbitmqNode> nodes, ByteArrayOutputStream outStream)
        throws IOException {
    JsonGenerator jgenerator = RabbitmqDirectoryBootstrap.getjFactory().createGenerator(outStream,
            JsonEncoding.UTF8);/*from  w  w  w  .  j a v  a  2  s  . c om*/
    jgenerator.writeStartObject();
    jgenerator.writeArrayFieldStart("rabbitmqnodes");
    for (RabbitmqNode node : nodes)
        rabbitmqNode2JSON(node, jgenerator);
    jgenerator.writeEndArray();
    jgenerator.writeEndObject();
    jgenerator.close();
}

From source file:com.cedarsoft.couchdb.io.ActionResponseSerializerTest.java

License:asdf

/**
 * Only used for tests/*from   www .  j a va2  s  .  c  o  m*/
 * @param object
 * @param out
 * @throws IOException
 */
@Deprecated
public static void serialize(@Nonnull ActionResponse object, @Nonnull OutputStream out) throws IOException {
    JsonFactory jsonFactory = JacksonSupport.getJsonFactory();

    JsonGenerator generator = jsonFactory.createJsonGenerator(out, JsonEncoding.UTF8);

    generator.writeStartObject();

    serialize(generator, object);
    generator.writeEndObject();

    generator.close();
}

From source file:net.echinopsii.ariane.community.core.directory.wat.json.ds.technical.system.OSInstanceJSON.java

public final static void manyOSInstances2JSON(HashSet<OSInstance> osInstances, ByteArrayOutputStream outStream)
        throws IOException {
    JsonGenerator jgenerator = DirectoryBootstrap.getjFactory().createGenerator(outStream, JsonEncoding.UTF8);
    jgenerator.writeStartObject();
    jgenerator.writeArrayFieldStart("osInstances");
    Iterator<OSInstance> iter = osInstances.iterator();
    while (iter.hasNext()) {
        OSInstance current = iter.next();
        OSInstanceJSON.osInstance2JSON(current, jgenerator);
    }//from  ww w.  j av a 2  s . c  om
    jgenerator.writeEndArray();
    jgenerator.writeEndObject();
    jgenerator.close();
}

From source file:com.netflix.hystrix.contrib.sample.stream.HystrixUtilizationJsonStream.java

protected static String convertToJson(HystrixUtilization utilization) throws IOException {
    StringWriter jsonString = new StringWriter();
    JsonGenerator json = jsonFactory.createGenerator(jsonString);

    json.writeStartObject();
    json.writeStringField("type", "HystrixUtilization");
    json.writeObjectFieldStart("commands");
    for (Map.Entry<HystrixCommandKey, HystrixCommandUtilization> entry : utilization.getCommandUtilizationMap()
            .entrySet()) {/*w  w w .  ja  va  2s  . co  m*/
        final HystrixCommandKey key = entry.getKey();
        final HystrixCommandUtilization commandUtilization = entry.getValue();
        writeCommandUtilizationJson(json, key, commandUtilization);

    }
    json.writeEndObject();

    json.writeObjectFieldStart("threadpools");
    for (Map.Entry<HystrixThreadPoolKey, HystrixThreadPoolUtilization> entry : utilization
            .getThreadPoolUtilizationMap().entrySet()) {
        final HystrixThreadPoolKey threadPoolKey = entry.getKey();
        final HystrixThreadPoolUtilization threadPoolUtilization = entry.getValue();
        writeThreadPoolUtilizationJson(json, threadPoolKey, threadPoolUtilization);
    }
    json.writeEndObject();
    json.writeEndObject();
    json.close();

    return jsonString.getBuffer().toString();
}

From source file:io.seldon.spark.actions.JobUtils.java

public static String mapToJson(Map<String, String> m) {
    JsonFactory jsonFactory = new JsonFactory();
    StringWriter sw = new StringWriter();
    try {/*from   w  ww .  j a v  a  2s  .c  o m*/
        JsonGenerator jg = jsonFactory.createGenerator(sw);
        jg.writeStartObject();
        for (Map.Entry<String, String> entry : m.entrySet()) {
            jg.writeStringField(entry.getKey(), entry.getValue());
        }
        jg.writeEndObject();
        jg.close();
    } catch (IOException e) {
        e.printStackTrace();
    }

    return sw.toString();
}

From source file:io.seldon.spark.actions.JobUtils.java

public static String getJsonFromActionData(ActionData actionData) {
    JsonFactory jsonFactory = new JsonFactory();
    StringWriter sw = new StringWriter();
    try {/* w  w w  . ja  v a  2  s .co m*/
        JsonGenerator jg = jsonFactory.createGenerator(sw);
        jg.writeStartObject();
        jg.writeStringField("timestamp_utc", actionData.timestamp_utc);
        jg.writeStringField("client", actionData.client);
        jg.writeStringField("client_userid", actionData.client_userid);
        jg.writeNumberField("userid", actionData.userid);
        jg.writeNumberField("itemid", actionData.itemid);
        jg.writeStringField("client_itemid", actionData.client_itemid);
        jg.writeStringField("rectag", actionData.rectag);
        jg.writeNumberField("type", actionData.type);
        jg.writeNumberField("value", actionData.value);
        jg.writeEndObject();
        jg.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return sw.toString();
}

From source file:com.netflix.hystrix.serial.SerialHystrixConfiguration.java

private static void serializeConfiguration(HystrixConfiguration config, JsonGenerator json) {
    try {//from   w  w  w.  j a v a2s  . c o m
        json.writeStartObject();
        json.writeStringField("type", "HystrixConfig");
        json.writeObjectFieldStart("commands");
        for (Map.Entry<HystrixCommandKey, HystrixCommandConfiguration> entry : config.getCommandConfig()
                .entrySet()) {
            final HystrixCommandKey key = entry.getKey();
            final HystrixCommandConfiguration commandConfig = entry.getValue();
            writeCommandConfigJson(json, key, commandConfig);

        }
        json.writeEndObject();

        json.writeObjectFieldStart("threadpools");
        for (Map.Entry<HystrixThreadPoolKey, HystrixThreadPoolConfiguration> entry : config
                .getThreadPoolConfig().entrySet()) {
            final HystrixThreadPoolKey threadPoolKey = entry.getKey();
            final HystrixThreadPoolConfiguration threadPoolConfig = entry.getValue();
            writeThreadPoolConfigJson(json, threadPoolKey, threadPoolConfig);
        }
        json.writeEndObject();

        json.writeObjectFieldStart("collapsers");
        for (Map.Entry<HystrixCollapserKey, HystrixCollapserConfiguration> entry : config.getCollapserConfig()
                .entrySet()) {
            final HystrixCollapserKey collapserKey = entry.getKey();
            final HystrixCollapserConfiguration collapserConfig = entry.getValue();
            writeCollapserConfigJson(json, collapserKey, collapserConfig);
        }
        json.writeEndObject();
        json.writeEndObject();
        json.close();
    } catch (Exception e) {
        throw new RuntimeException(e);
    }

}

From source file:com.netflix.hystrix.serial.SerialHystrixRequestEvents.java

private static void convertExecutionToJson(JsonGenerator json,
        HystrixRequestEvents.ExecutionSignature executionSignature, List<Integer> latencies)
        throws IOException {
    json.writeStartObject();
    json.writeStringField("name", executionSignature.getCommandName());
    json.writeArrayFieldStart("events");
    ExecutionResult.EventCounts eventCounts = executionSignature.getEventCounts();
    for (HystrixEventType eventType : HystrixEventType.values()) {
        if (!eventType.equals(HystrixEventType.COLLAPSED)) {
            if (eventCounts.contains(eventType)) {
                int eventCount = eventCounts.getCount(eventType);
                if (eventCount > 1) {
                    json.writeStartObject();
                    json.writeStringField("name", eventType.name());
                    json.writeNumberField("count", eventCount);
                    json.writeEndObject();
                } else {
                    json.writeString(eventType.name());
                }//  w w  w.j av  a2 s . c  o  m
            }
        }
    }
    json.writeEndArray();
    json.writeArrayFieldStart("latencies");
    for (int latency : latencies) {
        json.writeNumber(latency);
    }
    json.writeEndArray();
    if (executionSignature.getCachedCount() > 0) {
        json.writeNumberField("cached", executionSignature.getCachedCount());
    }
    if (executionSignature.getEventCounts().contains(HystrixEventType.COLLAPSED)) {
        json.writeObjectFieldStart("collapsed");
        json.writeStringField("name", executionSignature.getCollapserKey().name());
        json.writeNumberField("count", executionSignature.getCollapserBatchSize());
        json.writeEndObject();
    }
    json.writeEndObject();
}

From source file:com.cedarsoft.couchdb.DesignDocumentsUpdater.java

/**
 * Creates the json content for the design document
 *
 * @return a string containing the json content for this design document
 *
 * @throws IOException/*from  www  .j  a  va  2s . co  m*/
 */
public static String createJson(@Nonnull DesignDocument designDocument, @Nullable Revision revision)
        throws IOException {
    //noinspection TypeMayBeWeakened
    StringWriter writer = new StringWriter();
    JsonGenerator generator = new JsonFactory().createJsonGenerator(writer);
    generator.writeStartObject();

    generator.writeStringField("_id", designDocument.getId());
    if (revision != null) {
        generator.writeStringField("_rev", revision.asString());
    }
    generator.writeStringField("language", "javascript");

    generator.writeObjectFieldStart("views");

    for (View view : designDocument.getViews()) {
        generator.writeObjectFieldStart(view.getName());

        generator.writeStringField("map", view.getMappingFunction());
        @Nullable
        String reduceFunction = view.getReduceFunction();
        if (reduceFunction != null) {
            generator.writeStringField("reduce", reduceFunction);
        }
        generator.writeEndObject();
    }

    generator.writeEndObject();
    generator.writeEndObject();
    generator.flush();
    return writer.toString();
}

From source file:com.netflix.hystrix.contrib.requests.stream.HystrixRequestEventsJsonStream.java

private static void convertExecutionToJson(JsonGenerator json,
        HystrixRequestEvents.ExecutionSignature executionSignature, List<Integer> latencies)
        throws IOException {
    json.writeStartObject();
    json.writeStringField("name", executionSignature.getCommandName());
    json.writeArrayFieldStart("events");
    ExecutionResult.EventCounts eventCounts = executionSignature.getEventCounts();
    for (HystrixEventType eventType : HystrixEventType.values()) {
        if (eventType != HystrixEventType.COLLAPSED) {
            if (eventCounts.contains(eventType)) {
                int eventCount = eventCounts.getCount(eventType);
                if (eventCount > 1) {
                    json.writeStartObject();
                    json.writeStringField("name", eventType.name());
                    json.writeNumberField("count", eventCount);
                    json.writeEndObject();
                } else {
                    json.writeString(eventType.name());
                }/*from  w w w. j a  v a  2 s. co  m*/
            }
        }
    }
    json.writeEndArray();
    json.writeArrayFieldStart("latencies");
    for (int latency : latencies) {
        json.writeNumber(latency);
    }
    json.writeEndArray();
    if (executionSignature.getCachedCount() > 0) {
        json.writeNumberField("cached", executionSignature.getCachedCount());
    }
    if (executionSignature.getEventCounts().contains(HystrixEventType.COLLAPSED)) {
        json.writeObjectFieldStart("collapsed");
        json.writeStringField("name", executionSignature.getCollapserKey().name());
        json.writeNumberField("count", executionSignature.getCollapserBatchSize());
        json.writeEndObject();
    }
    json.writeEndObject();
}