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

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

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Introduction

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

Prototype

public final void writeObjectFieldStart(String fieldName) throws IOException, JsonGenerationException

Source Link

Document

Convenience method for outputting a field entry ("member") (that will contain a JSON Object value), and the START_OBJECT marker.

Usage

From source file:com.predic8.membrane.core.interceptor.apimanagement.statistics.AMStatisticsCollector.java

private String collectExchangeDataFrom(Exchange exc, String apiKey) throws IOException {
    JsonGenerator gen = getAndResetJsonGenerator();

    try {/*  w  ww  .  j av  a2 s  .  c  om*/
        gen.writeStartObject();
        gen.writeObjectField("excId", exc.getId());
        gen.writeObjectField("excApiKey", apiKey);
        gen.writeObjectFieldStart("Request");
        collectFromMessage(gen, exc.getRequest());
        gen.writeEndObject();
        gen.writeObjectFieldStart("Response");
        collectFromMessage(gen, exc.getResponse());
        gen.writeEndObject();
        gen.writeEndObject();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return getStringFromJsonGenerator();
}

From source file:com.joliciel.jochre.search.highlight.HighlightManagerImpl.java

@Override
public void highlight(Highlighter highlighter, Set<Integer> docIds, Set<String> fields, Writer out) {
    try {/*from w  ww  . j a  v  a  2  s. com*/
        Map<Integer, Set<HighlightTerm>> termMap = highlighter.highlight(docIds, fields);
        JsonFactory jsonFactory = new JsonFactory();
        JsonGenerator jsonGen = jsonFactory.createGenerator(out);

        jsonGen.writeStartObject();

        for (int docId : docIds) {
            Document doc = indexSearcher.doc(docId);
            jsonGen.writeObjectFieldStart(doc.get("id"));
            jsonGen.writeStringField("path", doc.get("path"));
            jsonGen.writeNumberField("docId", docId);

            jsonGen.writeArrayFieldStart("terms");
            for (HighlightTerm term : termMap.get(docId)) {
                fields.add(term.getField());
                term.toJson(jsonGen, df);
            }
            jsonGen.writeEndArray();

            if (includeText) {
                for (String field : fields) {
                    jsonGen.writeObjectFieldStart("field" + field);
                    Set<HighlightTerm> terms = termMap.get(docId);
                    jsonGen.writeStringField("contents", this.displayHighlights(docId, field, terms));
                    jsonGen.writeEndObject();
                }
            }

            jsonGen.writeEndObject();
        }

        jsonGen.writeEndObject();
        jsonGen.flush();
    } catch (IOException ioe) {
        LogUtils.logError(LOG, ioe);
        throw new RuntimeException(ioe);
    }
}

From source file:net.logstash.logback.composite.loggingevent.ArgumentsJsonProvider.java

@Override
public void writeTo(JsonGenerator generator, ILoggingEvent event) throws IOException {

    Object[] args = event.getArgumentArray();

    if (args == null || args.length == 0) {
        return;//from   w ww.j a  v  a 2 s . com
    }

    boolean hasWrittenFieldName = false;

    for (int argIndex = 0; argIndex < args.length; argIndex++) {

        Object arg = args[argIndex];

        if (arg instanceof StructuredArgument) {
            if (!hasWrittenFieldName && getFieldName() != null) {
                generator.writeObjectFieldStart(getFieldName());
                hasWrittenFieldName = true;
            }
            StructuredArgument structuredArgument = (StructuredArgument) arg;
            structuredArgument.writeTo(generator);
        } else if (includeNonStructuredArguments) {
            if (!hasWrittenFieldName && getFieldName() != null) {
                generator.writeObjectFieldStart(getFieldName());
                hasWrittenFieldName = true;
            }
            String fieldName = nonStructuredArgumentsFieldPrefix + argIndex;
            generator.writeObjectField(fieldName, arg);
        }
    }

    if (hasWrittenFieldName) {
        generator.writeEndObject();
    }
}

From source file:com.joliciel.jochre.search.highlight.HighlightManagerImpl.java

@Override
public void findSnippets(Highlighter highlighter, Set<Integer> docIds, Set<String> fields, Writer out) {
    try {/*from w  w  w  .j  a v a  2s .  c o  m*/
        Map<Integer, Set<HighlightTerm>> termMap = highlighter.highlight(docIds, fields);
        Map<Integer, List<Snippet>> snippetMap = this.findSnippets(docIds, fields, termMap,
                this.getSnippetCount(), this.getSnippetSize());

        JsonFactory jsonFactory = new JsonFactory();
        JsonGenerator jsonGen = jsonFactory.createGenerator(out);

        jsonGen.writeStartObject();

        for (int docId : docIds) {
            Document doc = indexSearcher.doc(docId);
            jsonGen.writeObjectFieldStart(doc.get("id"));
            jsonGen.writeStringField("path", doc.get("path"));
            jsonGen.writeNumberField("docId", docId);

            jsonGen.writeArrayFieldStart("snippets");
            for (Snippet snippet : snippetMap.get(docId)) {
                snippet.toJson(jsonGen, df);
            }
            jsonGen.writeEndArray();

            if (includeText) {
                jsonGen.writeArrayFieldStart("snippetText");
                for (Snippet snippet : snippetMap.get(docId)) {
                    jsonGen.writeStartObject();
                    jsonGen.writeStringField("snippet", this.displaySnippet(docId, snippet));
                    jsonGen.writeEndObject();
                }
                jsonGen.writeEndArray();
            }

            if (includeGraphics) {
                jsonGen.writeArrayFieldStart("snippetGraphics");
                for (Snippet snippet : snippetMap.get(docId)) {
                    jsonGen.writeStartObject();
                    ImageSnippet imageSnippet = this.getImageSnippet(snippet);
                    jsonGen.writeNumberField("left", imageSnippet.getRectangle().getLeft());
                    jsonGen.writeNumberField("top", imageSnippet.getRectangle().getTop());
                    jsonGen.writeNumberField("right", imageSnippet.getRectangle().getRight());
                    jsonGen.writeNumberField("bottom", imageSnippet.getRectangle().getBottom());

                    jsonGen.writeArrayFieldStart("highlights");
                    for (Rectangle highlight : imageSnippet.getHighlights()) {
                        jsonGen.writeStartObject();
                        jsonGen.writeNumberField("left", highlight.getLeft());
                        jsonGen.writeNumberField("top", highlight.getTop());
                        jsonGen.writeNumberField("right", highlight.getRight());
                        jsonGen.writeNumberField("bottom", highlight.getBottom());
                        jsonGen.writeEndObject();
                    }
                    jsonGen.writeEndArray();
                    jsonGen.writeEndObject();
                }
                jsonGen.writeEndArray();
            }
            jsonGen.writeEndObject();
        } // next doc

        jsonGen.writeEndObject();
        jsonGen.flush();
    } catch (IOException ioe) {
        LogUtils.logError(LOG, ioe);
        throw new RuntimeException(ioe);
    }
}

From source file:org.h2gis.drivers.geojson.GeoJsonWriteDriver.java

/**
 * Write the GeoJSON properties./*from w  w w.  j a  va 2s.co m*/
 *
 * @param jsonGenerator
 * @param rs
 * @throws IOException
 */
private void writeProperties(JsonGenerator jsonGenerator, ResultSet rs) throws IOException, SQLException {
    if (columnCountProperties != -1) {
        jsonGenerator.writeObjectFieldStart("properties");
        for (Map.Entry<String, Integer> entry : cachedColumnNames.entrySet()) {
            String string = entry.getKey();
            Integer fieldId = entry.getValue();
            jsonGenerator.writeObjectField(string, rs.getObject(fieldId));
        }
        jsonGenerator.writeEndObject();
    }
}

From source file:org.h2gis.drivers.geojson.GeoJsonWriteDriver.java

/**
 * Write the CRS in the geojson//from   w w w .  j  a  v a  2  s.c o m
 *
 * @param jsonGenerator
 * @param authorityAndSRID
 * @throws IOException
 */
private void writeCRS(JsonGenerator jsonGenerator, String[] authorityAndSRID) throws IOException {
    if (authorityAndSRID[1] != null) {
        jsonGenerator.writeObjectFieldStart("crs");
        jsonGenerator.writeStringField("type", "name");
        jsonGenerator.writeObjectFieldStart("properties");
        StringBuilder sb = new StringBuilder("urn:ogc:def:crs:");
        sb.append(authorityAndSRID[0]).append("::").append(authorityAndSRID[1]);
        jsonGenerator.writeStringField("name", sb.toString());
        jsonGenerator.writeEndObject();
        jsonGenerator.writeEndObject();
    }
}

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();/*from  w  ww.  ja  va2  s.  c  o  m*/
    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());
                }
            }
        }
    }
    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:org.springframework.cloud.netflix.metrics.atlas.AtlasMetricObserver.java

private int writeMetrics(JsonGenerator gen, List<Metric> metrics) throws IOException {
    int totalMetricsInBatch = 0;
    gen.writeArrayFieldStart("metrics");

    for (Metric m : metrics) {
        if (!validTags(m.getConfig().getTags()))
            continue;

        if (!Number.class.isAssignableFrom(m.getValue().getClass()))
            continue;

        gen.writeStartObject();//from w  w  w  . java  2s  .c o m

        gen.writeObjectFieldStart("tags");
        gen.writeStringField("name", m.getConfig().getName());
        for (Tag tag : m.getConfig().getTags())
            gen.writeStringField(tag.getKey(), tag.getValue());
        gen.writeEndObject();

        gen.writeNumberField("start", m.getTimestamp());
        gen.writeNumberField("value", m.getNumberValue().doubleValue());

        gen.writeEndObject();

        totalMetricsInBatch++;
    }

    gen.writeEndArray();
    return totalMetricsInBatch;
}

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();//from w  ww .j a v a 2s.  c o  m
    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());
                }
            }
        }
    }
    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.github.lynxdb.server.api.http.handlers.EpQuery.java

private void saveResponse(OutputStream _output, List<Query> _queries) throws IOException {
    JsonFactory jFactory = new JsonFactory();
    JsonGenerator jGenerator;

    jGenerator = jFactory.createGenerator(_output, JsonEncoding.UTF8);
    jGenerator.writeStartArray();//from www .j a  va2 s . c  o m

    for (Query q : _queries) {
        TimeSerie ts;

        ts = engine.query(q);

        jGenerator.writeStartObject();

        jGenerator.writeStringField("metric", q.getName());

        //tags
        jGenerator.writeObjectFieldStart("tags");
        if (q.getTags() != null) {
            for (String tagk : q.getTags().keySet()) {
                jGenerator.writeStringField(tagk, q.getTags().get(tagk));
            }
        }
        jGenerator.writeEndObject();

        //dps
        jGenerator.writeObjectFieldStart("dps");
        while (ts.hasNext()) {
            Entry e = ts.next();
            jGenerator.writeNumberField(String.valueOf(e.getTime()), e.getValue());
        }
        jGenerator.writeEndObject();

        //endQuery
        jGenerator.writeEndObject();
    }
    jGenerator.writeEndArray();
    jGenerator.close();
    _output.flush();
    _output.close();

}