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:org.elasticsearch.client.sniff.HostsSnifferTests.java

private static SniffResponse buildSniffResponse(HostsSniffer.Scheme scheme) throws IOException {
    int numNodes = RandomInts.randomIntBetween(getRandom(), 1, 5);
    List<HttpHost> hosts = new ArrayList<>(numNodes);
    JsonFactory jsonFactory = new JsonFactory();
    StringWriter writer = new StringWriter();
    JsonGenerator generator = jsonFactory.createGenerator(writer);
    generator.writeStartObject();
    if (getRandom().nextBoolean()) {
        generator.writeStringField("cluster_name", "elasticsearch");
    }//from w w w  .ja  v  a  2 s . c  om
    if (getRandom().nextBoolean()) {
        generator.writeObjectFieldStart("bogus_object");
        generator.writeEndObject();
    }
    generator.writeObjectFieldStart("nodes");
    for (int i = 0; i < numNodes; i++) {
        String nodeId = RandomStrings.randomAsciiOfLengthBetween(getRandom(), 5, 10);
        generator.writeObjectFieldStart(nodeId);
        if (getRandom().nextBoolean()) {
            generator.writeObjectFieldStart("bogus_object");
            generator.writeEndObject();
        }
        if (getRandom().nextBoolean()) {
            generator.writeArrayFieldStart("bogus_array");
            generator.writeStartObject();
            generator.writeEndObject();
            generator.writeEndArray();
        }
        boolean isHttpEnabled = rarely() == false;
        if (isHttpEnabled) {
            String host = "host" + i;
            int port = RandomInts.randomIntBetween(getRandom(), 9200, 9299);
            HttpHost httpHost = new HttpHost(host, port, scheme.toString());
            hosts.add(httpHost);
            generator.writeObjectFieldStart("http");
            if (getRandom().nextBoolean()) {
                generator.writeArrayFieldStart("bound_address");
                generator.writeString("[fe80::1]:" + port);
                generator.writeString("[::1]:" + port);
                generator.writeString("127.0.0.1:" + port);
                generator.writeEndArray();
            }
            if (getRandom().nextBoolean()) {
                generator.writeObjectFieldStart("bogus_object");
                generator.writeEndObject();
            }
            generator.writeStringField("publish_address", httpHost.toHostString());
            if (getRandom().nextBoolean()) {
                generator.writeNumberField("max_content_length_in_bytes", 104857600);
            }
            generator.writeEndObject();
        }
        if (getRandom().nextBoolean()) {
            String[] roles = { "master", "data", "ingest" };
            int numRoles = RandomInts.randomIntBetween(getRandom(), 0, 3);
            Set<String> nodeRoles = new HashSet<>(numRoles);
            for (int j = 0; j < numRoles; j++) {
                String role;
                do {
                    role = RandomPicks.randomFrom(getRandom(), roles);
                } while (nodeRoles.add(role) == false);
            }
            generator.writeArrayFieldStart("roles");
            for (String nodeRole : nodeRoles) {
                generator.writeString(nodeRole);
            }
            generator.writeEndArray();
        }
        int numAttributes = RandomInts.randomIntBetween(getRandom(), 0, 3);
        Map<String, String> attributes = new HashMap<>(numAttributes);
        for (int j = 0; j < numAttributes; j++) {
            attributes.put("attr" + j, "value" + j);
        }
        if (numAttributes > 0) {
            generator.writeObjectFieldStart("attributes");
        }
        for (Map.Entry<String, String> entry : attributes.entrySet()) {
            generator.writeStringField(entry.getKey(), entry.getValue());
        }
        if (numAttributes > 0) {
            generator.writeEndObject();
        }
        generator.writeEndObject();
    }
    generator.writeEndObject();
    generator.writeEndObject();
    generator.close();
    return SniffResponse.buildResponse(writer.toString(), hosts);
}

From source file:eu.project.ttc.readers.TermSuiteJsonCasSerializer.java

private static void writeSDI(JsonGenerator jg, JCas jCas) throws IOException {
    SourceDocumentInformation sdi = (SourceDocumentInformation) jCas
            .getAnnotationIndex(SourceDocumentInformation.type).iterator().next();
    jg.writeStartObject();
    writeStringField(jg, F_URI, sdi.getUri());
    writeIntField(jg, F_OFFSET_IN_SOURCE, sdi.getOffsetInSource());
    writeIntField(jg, F_DOCUMENT_INDEX, sdi.getDocumentIndex());
    writeIntField(jg, F_NB_DOCUMENTS, sdi.getNbDocuments());
    writeIntField(jg, F_DOCUMENT_SIZE, sdi.getDocumentSize());
    writeLongField(jg, F_CUMULATED_DOCUMENT_SIZE, sdi.getCumulatedDocumentSize());
    writeLongField(jg, F_CORPUS_SIZE, sdi.getCorpusSize());
    writeBooleanField(jg, F_LAST_SEGMENT, sdi.getLastSegment());
    writeOffsets(jg, sdi);/*  w  w  w.j  a  v  a2 s  .com*/
    jg.writeEndObject();
}

From source file:org.bndtools.rt.repository.marshall.CapReqJson.java

public static void writeProviderArray(Map<Requirement, Collection<Capability>> providers,
        JsonGenerator generator) throws IOException {
    generator.writeStartArray();//from  w  w w . ja v  a  2 s.  com

    for (Entry<Requirement, Collection<Capability>> provider : providers.entrySet()) {
        generator.writeStartObject();

        generator.writeFieldName("req");
        writeRequirement(provider.getKey(), generator);

        generator.writeFieldName("providers");
        writeCapabilityArray(provider.getValue(), generator);

        generator.writeEndObject();
    }

    generator.writeEndArray();
}

From source file:org.elasticsearch.client.sniff.ElasticsearchHostsSnifferTests.java

private static SniffResponse buildSniffResponse(ElasticsearchHostsSniffer.Scheme scheme) throws IOException {
    int numNodes = RandomNumbers.randomIntBetween(getRandom(), 1, 5);
    List<HttpHost> hosts = new ArrayList<>(numNodes);
    JsonFactory jsonFactory = new JsonFactory();
    StringWriter writer = new StringWriter();
    JsonGenerator generator = jsonFactory.createGenerator(writer);
    generator.writeStartObject();
    if (getRandom().nextBoolean()) {
        generator.writeStringField("cluster_name", "elasticsearch");
    }// w w w  . j  a v  a  2  s .  com
    if (getRandom().nextBoolean()) {
        generator.writeObjectFieldStart("bogus_object");
        generator.writeEndObject();
    }
    generator.writeObjectFieldStart("nodes");
    for (int i = 0; i < numNodes; i++) {
        String nodeId = RandomStrings.randomAsciiOfLengthBetween(getRandom(), 5, 10);
        generator.writeObjectFieldStart(nodeId);
        if (getRandom().nextBoolean()) {
            generator.writeObjectFieldStart("bogus_object");
            generator.writeEndObject();
        }
        if (getRandom().nextBoolean()) {
            generator.writeArrayFieldStart("bogus_array");
            generator.writeStartObject();
            generator.writeEndObject();
            generator.writeEndArray();
        }
        boolean isHttpEnabled = rarely() == false;
        if (isHttpEnabled) {
            String host = "host" + i;
            int port = RandomNumbers.randomIntBetween(getRandom(), 9200, 9299);
            HttpHost httpHost = new HttpHost(host, port, scheme.toString());
            hosts.add(httpHost);
            generator.writeObjectFieldStart("http");
            if (getRandom().nextBoolean()) {
                generator.writeArrayFieldStart("bound_address");
                generator.writeString("[fe80::1]:" + port);
                generator.writeString("[::1]:" + port);
                generator.writeString("127.0.0.1:" + port);
                generator.writeEndArray();
            }
            if (getRandom().nextBoolean()) {
                generator.writeObjectFieldStart("bogus_object");
                generator.writeEndObject();
            }
            generator.writeStringField("publish_address", httpHost.toHostString());
            if (getRandom().nextBoolean()) {
                generator.writeNumberField("max_content_length_in_bytes", 104857600);
            }
            generator.writeEndObject();
        }
        if (getRandom().nextBoolean()) {
            String[] roles = { "master", "data", "ingest" };
            int numRoles = RandomNumbers.randomIntBetween(getRandom(), 0, 3);
            Set<String> nodeRoles = new HashSet<>(numRoles);
            for (int j = 0; j < numRoles; j++) {
                String role;
                do {
                    role = RandomPicks.randomFrom(getRandom(), roles);
                } while (nodeRoles.add(role) == false);
            }
            generator.writeArrayFieldStart("roles");
            for (String nodeRole : nodeRoles) {
                generator.writeString(nodeRole);
            }
            generator.writeEndArray();
        }
        int numAttributes = RandomNumbers.randomIntBetween(getRandom(), 0, 3);
        Map<String, String> attributes = new HashMap<>(numAttributes);
        for (int j = 0; j < numAttributes; j++) {
            attributes.put("attr" + j, "value" + j);
        }
        if (numAttributes > 0) {
            generator.writeObjectFieldStart("attributes");
        }
        for (Map.Entry<String, String> entry : attributes.entrySet()) {
            generator.writeStringField(entry.getKey(), entry.getValue());
        }
        if (numAttributes > 0) {
            generator.writeEndObject();
        }
        generator.writeEndObject();
    }
    generator.writeEndObject();
    generator.writeEndObject();
    generator.close();
    return SniffResponse.buildResponse(writer.toString(), hosts);
}

From source file:com.attribyte.essem.ESReporter.java

/**
 * Generates the ES bulk api "action" command.
 * @param generator The JSON generator./*from ww  w  .  j  a v  a 2  s  . co  m*/
 * @param objType The object type.
 * @throws IOException
 */
static final void generateAction(final JsonGenerator generator, final String objType) throws IOException {
    generator.writeStartObject();
    generator.writeObjectFieldStart("index");
    generator.writeStringField("_type", objType);
    generator.writeEndObject();
    generator.writeEndObject();
    generator.flush();
}

From source file:com.meetingninja.csse.database.ProjectDatabaseAdapter.java

public static Project createProject(Project p) throws IOException, MalformedURLException {
    // Server URL setup
    String _url = getBaseUri().build().toString();

    // establish connection
    URL url = new URL(_url);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();

    conn.setRequestMethod("POST");
    addRequestHeader(conn, true);//from   w w w .  ja v a2  s. co m

    // prepare POST payload
    ByteArrayOutputStream json = new ByteArrayOutputStream();
    // this type of print stream allows us to get a string easily
    PrintStream ps = new PrintStream(json);
    // Create a generator to build the JSON string
    JsonGenerator jgen = JFACTORY.createGenerator(ps, JsonEncoding.UTF8);

    // Build JSON Object
    jgen.writeStartObject();
    jgen.writeStringField(Keys.Project.TITLE, p.getProjectTitle());
    jgen.writeArrayFieldStart(Keys.Project.MEETINGS);
    for (Meeting meeting : p.getMeetings()) {
        jgen.writeStartObject();
        jgen.writeStringField(Keys.Meeting.ID, meeting.getID());
        jgen.writeEndObject();

    }
    jgen.writeEndArray();
    jgen.writeArrayFieldStart(Keys.Project.NOTES);
    for (Note note : p.getNotes()) {
        jgen.writeStartObject();
        jgen.writeStringField(Keys.Note.ID, note.getID());
        jgen.writeEndObject();

    }
    jgen.writeEndArray();
    jgen.writeArrayFieldStart(Keys.Project.MEMBERS);
    for (User member : p.getMembers()) {
        jgen.writeStartObject();
        jgen.writeStringField(Keys.User.ID, member.getID());
        jgen.writeEndObject();

    }
    jgen.writeEndArray();
    jgen.writeEndObject();
    jgen.close();

    // Get JSON Object payload from print stream
    String payload = json.toString("UTF8");
    ps.close();

    // send payload
    sendPostPayload(conn, payload);
    String response = getServerResponse(conn);

    // prepare to get the id of the created Meeting
    // Map<String, String> responseMap = new HashMap<String, String>();

    /*
     * result should get valid={"meetingID":"##"}
     */
    String result = new String();
    if (!response.isEmpty()) {
        // responseMap = MAPPER.readValue(response,
        // new TypeReference<HashMap<String, String>>() {
        // });
        JsonNode projectNode = MAPPER.readTree(response);
        if (!projectNode.has(Keys.Project.ID)) {
            result = "invalid";
        } else
            result = projectNode.get(Keys.Project.ID).asText();
    }

    if (!result.equalsIgnoreCase("invalid"))
        p.setProjectID(result);

    conn.disconnect();
    return p;
}

From source file:org.elasticsearch.client.sniff.ElasticsearchNodesSnifferTests.java

private static SniffResponse buildSniffResponse(ElasticsearchNodesSniffer.Scheme scheme) throws IOException {
    int numNodes = RandomNumbers.randomIntBetween(getRandom(), 1, 5);
    List<Node> nodes = new ArrayList<>(numNodes);
    JsonFactory jsonFactory = new JsonFactory();
    StringWriter writer = new StringWriter();
    JsonGenerator generator = jsonFactory.createGenerator(writer);
    generator.writeStartObject();
    if (getRandom().nextBoolean()) {
        generator.writeStringField("cluster_name", "elasticsearch");
    }//from w w  w . ja  va 2s. c o  m
    if (getRandom().nextBoolean()) {
        generator.writeObjectFieldStart("bogus_object");
        generator.writeEndObject();
    }
    generator.writeObjectFieldStart("nodes");
    for (int i = 0; i < numNodes; i++) {
        String nodeId = RandomStrings.randomAsciiOfLengthBetween(getRandom(), 5, 10);
        String host = "host" + i;
        int port = RandomNumbers.randomIntBetween(getRandom(), 9200, 9299);
        HttpHost publishHost = new HttpHost(host, port, scheme.toString());
        Set<HttpHost> boundHosts = new HashSet<>();
        boundHosts.add(publishHost);

        if (randomBoolean()) {
            int bound = between(1, 5);
            for (int b = 0; b < bound; b++) {
                boundHosts.add(new HttpHost(host + b, port, scheme.toString()));
            }
        }

        int numAttributes = between(0, 5);
        Map<String, List<String>> attributes = new HashMap<>(numAttributes);
        for (int j = 0; j < numAttributes; j++) {
            int numValues = frequently() ? 1 : between(2, 5);
            List<String> values = new ArrayList<>();
            for (int v = 0; v < numValues; v++) {
                values.add(j + "value" + v);
            }
            attributes.put("attr" + j, values);
        }

        Node node = new Node(publishHost, boundHosts, randomAsciiAlphanumOfLength(5),
                randomAsciiAlphanumOfLength(5),
                new Node.Roles(randomBoolean(), randomBoolean(), randomBoolean()), attributes);

        generator.writeObjectFieldStart(nodeId);
        if (getRandom().nextBoolean()) {
            generator.writeObjectFieldStart("bogus_object");
            generator.writeEndObject();
        }
        if (getRandom().nextBoolean()) {
            generator.writeArrayFieldStart("bogus_array");
            generator.writeStartObject();
            generator.writeEndObject();
            generator.writeEndArray();
        }
        boolean isHttpEnabled = rarely() == false;
        if (isHttpEnabled) {
            nodes.add(node);
            generator.writeObjectFieldStart("http");
            generator.writeArrayFieldStart("bound_address");
            for (HttpHost bound : boundHosts) {
                generator.writeString(bound.toHostString());
            }
            generator.writeEndArray();
            if (getRandom().nextBoolean()) {
                generator.writeObjectFieldStart("bogus_object");
                generator.writeEndObject();
            }
            generator.writeStringField("publish_address", publishHost.toHostString());
            if (getRandom().nextBoolean()) {
                generator.writeNumberField("max_content_length_in_bytes", 104857600);
            }
            generator.writeEndObject();
        }

        List<String> roles = Arrays.asList(new String[] { "master", "data", "ingest" });
        Collections.shuffle(roles, getRandom());
        generator.writeArrayFieldStart("roles");
        for (String role : roles) {
            if ("master".equals(role) && node.getRoles().isMasterEligible()) {
                generator.writeString("master");
            }
            if ("data".equals(role) && node.getRoles().isData()) {
                generator.writeString("data");
            }
            if ("ingest".equals(role) && node.getRoles().isIngest()) {
                generator.writeString("ingest");
            }
        }
        generator.writeEndArray();

        generator.writeFieldName("version");
        generator.writeString(node.getVersion());
        generator.writeFieldName("name");
        generator.writeString(node.getName());

        if (numAttributes > 0) {
            generator.writeObjectFieldStart("attributes");
            for (Map.Entry<String, List<String>> entry : attributes.entrySet()) {
                if (entry.getValue().size() == 1) {
                    generator.writeStringField(entry.getKey(), entry.getValue().get(0));
                } else {
                    for (int v = 0; v < entry.getValue().size(); v++) {
                        generator.writeStringField(entry.getKey() + "." + v, entry.getValue().get(v));
                    }
                }
            }
            generator.writeEndObject();
        }
        generator.writeEndObject();
    }
    generator.writeEndObject();
    generator.writeEndObject();
    generator.close();
    return SniffResponse.buildResponse(writer.toString(), nodes);
}

From source file:eu.project.ttc.readers.TermSuiteJsonCasSerializer.java

private static void writeFixedExpressions(JsonGenerator jg, JCas jCas) throws IOException {
    jg.writeStartArray();/*from  ww w .  j  ava  2  s  . co m*/
    FSIterator<Annotation> it = jCas.getAnnotationIndex(FixedExpression.type).iterator();
    while (it.hasNext()) {
        FixedExpression fe = (FixedExpression) it.next();
        jg.writeStartObject();
        writeOffsets(jg, fe);
        jg.writeEndObject();
    }
    jg.writeEndArray();
}

From source file:com.meetingninja.csse.database.ProjectDatabaseAdapter.java

public static void updateProject(Project p) throws IOException {
    ByteArrayOutputStream json = new ByteArrayOutputStream();
    // this type of print stream allows us to get a string easily
    PrintStream ps = new PrintStream(json);
    JsonGenerator jgen = JFACTORY.createGenerator(ps, JsonEncoding.UTF8);
    // Build JSON Object for Title
    jgen.writeStartObject();
    jgen.writeStringField(Keys.Project.ID, p.getProjectID());
    jgen.writeStringField("field", Keys.Project.TITLE);
    jgen.writeStringField("value", p.getProjectTitle());
    jgen.writeEndObject();/*from   w w w  . j  a  v a  2s .c o m*/
    jgen.close();
    String payloadTitle = json.toString("UTF8");
    ps.close();

    json = new ByteArrayOutputStream();
    // this type of print stream allows us to get a string easily
    ps = new PrintStream(json);
    jgen = JFACTORY.createGenerator(ps, JsonEncoding.UTF8);
    // Build JSON Object for Project members
    jgen.writeStartObject();
    jgen.writeStringField(Keys.Project.ID, p.getProjectID());
    jgen.writeStringField("field", Keys.Project.MEETINGS);
    jgen.writeArrayFieldStart("value");
    for (Meeting meeting : p.getMeetings()) {
        jgen.writeStartObject();
        jgen.writeStringField(Keys.Meeting.ID, meeting.getID());
        jgen.writeEndObject();

    }
    jgen.writeEndArray();
    jgen.writeEndObject();
    jgen.close();
    String payloadMeetings = json.toString("UTF8");
    ps.close();

    json = new ByteArrayOutputStream();
    // this type of print stream allows us to get a string easily
    ps = new PrintStream(json);
    jgen = JFACTORY.createGenerator(ps, JsonEncoding.UTF8);
    // Build JSON Object for Project members
    jgen.writeStartObject();
    jgen.writeStringField(Keys.Project.ID, p.getProjectID());
    jgen.writeStringField("field", Keys.Project.NOTES);
    jgen.writeArrayFieldStart("value");
    for (Note note : p.getNotes()) {
        jgen.writeStartObject();
        jgen.writeStringField(Keys.Note.ID, note.getID());
        jgen.writeEndObject();

    }
    jgen.writeEndArray();
    jgen.writeEndObject();
    jgen.close();
    String payloadNotes = json.toString("UTF8");
    ps.close();

    json = new ByteArrayOutputStream();
    // this type of print stream allows us to get a string easily
    ps = new PrintStream(json);
    jgen = JFACTORY.createGenerator(ps, JsonEncoding.UTF8);
    // Build JSON Object for Project members
    jgen.writeStartObject();
    jgen.writeStringField(Keys.Project.ID, p.getProjectID());
    jgen.writeStringField("field", Keys.Project.MEMBERS);
    jgen.writeArrayFieldStart("value");
    for (User member : p.getMembers()) {
        jgen.writeStartObject();
        jgen.writeStringField(Keys.User.ID, member.getID());
        jgen.writeEndObject();

    }
    jgen.writeEndArray();
    jgen.writeEndObject();
    jgen.close();
    String payloadMembers = json.toString("UTF8");
    ps.close();

    // Establish connection
    updateHelper(payloadTitle);
    updateHelper(payloadMeetings);
    updateHelper(payloadNotes);
    System.out.println(updateHelper(payloadMembers));

}

From source file:eu.project.ttc.readers.TermSuiteJsonCasSerializer.java

private static void writeTermOccAnnotations(JsonGenerator jg, JCas jCas) throws IOException {
    jg.writeStartArray();/* w w w  .  j av  a 2 s .c  o m*/
    FSIterator<Annotation> it = jCas.getAnnotationIndex(TermOccAnnotation.type).iterator();
    while (it.hasNext()) {
        TermOccAnnotation toa = (TermOccAnnotation) it.next();
        jg.writeStartObject();
        writeStringFSArrayField(jg, F_PATTERN, toa.getPattern());
        writeStringField(jg, F_SPOTTING_RULE_NAME, toa.getSpottingRuleName());
        writeStringField(jg, F_TERM_KEY, toa.getTermKey());
        writeIntFSArrayField(jg, F_WORDS, toa.getWords());
        writeOffsets(jg, toa);
        jg.writeEndObject();
    }
    jg.writeEndArray();
}