Example usage for com.fasterxml.jackson.core JsonFactory createGenerator

Introduction

In this page you can find the example usage for com.fasterxml.jackson.core JsonFactory createGenerator.

Prototype

public JsonGenerator createGenerator(File f, JsonEncoding enc) throws IOException 

Source Link

Document

Method for constructing JSON generator for writing JSON content to specified file, overwriting contents it might have (or creating it if such file does not yet exist).

Usage

From source file:com.cedarsoft.serialization.jackson.NumberSerializerTest.java

@Test
public void testDouble2() throws Exception {
    JsonFactory jsonFactory = JacksonSupport.getJsonFactory();
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    JsonGenerator generator = jsonFactory.createGenerator(out, JsonEncoding.UTF8);
    getSerializer().serialize(generator, 11133.0, Version.valueOf(1, 0, 0));
    generator.close();//from  ww w  . java  2 s  . c om
    JsonUtils.assertJsonEquals("11133.0", out.toString());
}

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From source file:com.cedarsoft.serialization.jackson.NumberSerializerTest.java

@Test
public void testInt() throws Exception {
    JsonFactory jsonFactory = JacksonSupport.getJsonFactory();
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    JsonGenerator generator = jsonFactory.createGenerator(out, JsonEncoding.UTF8);

    getSerializer().serialize(generator, 11133, Version.valueOf(1, 0, 0));

    generator.close();/*  w ww  .  ja va2  s.  c o m*/
    JsonUtils.assertJsonEquals("11133", out.toString());
}

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From source file:io.apiman.manager.ui.server.servlets.ConfigurationServlet.java

/**
 * @see javax.servlet.http.HttpServlet#doGet(javax.servlet.http.HttpServletRequest,
 *      javax.servlet.http.HttpServletResponse)
 *//*from www.ja va 2s  .c o  m*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    try {
        Class.forName("io.apiman.manager.ui.server.UIConfig"); //$NON-NLS-1$
    } catch (Throwable t) {
        t.printStackTrace();
    }

    JsonGenerator g = null;
    try {
        response.getOutputStream().write("window.APIMAN_CONFIG_DATA = ".getBytes("UTF-8")); //$NON-NLS-1$ //$NON-NLS-2$
        JsonFactory f = new JsonFactory();
        g = f.createGenerator(response.getOutputStream(), JsonEncoding.UTF8);
        ObjectMapper mapper = new ObjectMapper();
        mapper.setSerializationInclusion(Include.NON_NULL);
        g.setCodec(mapper);
        g.useDefaultPrettyPrinter();

        // Get data from various sources.
        String endpoint = getConfig().getManagementApiEndpoint();
        if (endpoint == null) {
            endpoint = getDefaultEndpoint(request);
        }
        UIVersion version = UIVersion.get();
        ApiAuthType authType = getConfig().getManagementApiAuthType();

        ConfigurationBean configBean = new ConfigurationBean();
        configBean.setApiman(new AppConfigurationBean());
        configBean.setUser(new UserConfigurationBean());
        configBean.setUi(new UiConfigurationBean());
        configBean.setApi(new ApiConfigurationBean());
        configBean.getUi().setHeader("community"); //$NON-NLS-1$
        configBean.getUi().setMetrics(getConfig().isMetricsEnabled());
        configBean.getUi().setPlatform(getConfig().getPlatform());
        configBean.getApiman().setVersion(version.getVersionString());
        configBean.getApiman().setBuiltOn(version.getVersionDate());
        configBean.getApiman().setLogoutUrl(getConfig().getLogoutUrl());
        configBean.getUser().setUsername(request.getRemoteUser());
        configBean.getApi().setEndpoint(endpoint);
        configBean.getApi().setAuth(new ApiAuthConfigurationBean());
        switch (authType) {
        case authToken: {
            configBean.getApi().getAuth().setType(ApiAuthType.authToken);
            String tokenGeneratorClassName = getConfig().getManagementApiAuthTokenGenerator();
            if (tokenGeneratorClassName == null) {
                throw new ServletException("No token generator class specified."); //$NON-NLS-1$
            }
            Class<?> c = Class.forName(tokenGeneratorClassName);
            ITokenGenerator tokenGenerator = (ITokenGenerator) c.newInstance();
            configBean.getApi().getAuth().setBearerToken(tokenGenerator.generateToken(request));
            break;
        }
        case basic: {
            configBean.getApi().getAuth().setType(ApiAuthType.basic);
            configBean.getApi().getAuth().setBasic(new BasicAuthCredentialsBean());
            String username = getConfig().getManagementApiAuthUsername();
            String password = getConfig().getManagementApiAuthPassword();
            configBean.getApi().getAuth().getBasic().setUsername(username);
            configBean.getApi().getAuth().getBasic().setPassword(password);
            break;
        }
        case bearerToken: {
            configBean.getApi().getAuth().setType(ApiAuthType.bearerToken);
            String tokenGeneratorClassName = getConfig().getManagementApiAuthTokenGenerator();
            if (tokenGeneratorClassName == null)
                throw new ServletException("No token generator class specified."); //$NON-NLS-1$
            Class<?> c = Class.forName(tokenGeneratorClassName);
            ITokenGenerator tokenGenerator = (ITokenGenerator) c.newInstance();
            configBean.getApi().getAuth().setBearerToken(tokenGenerator.generateToken(request));
            break;
        }
        case samlBearerToken: {
            configBean.getApi().getAuth().setType(ApiAuthType.samlBearerToken);
            String tokenGeneratorClassName = getConfig().getManagementApiAuthTokenGenerator();
            if (tokenGeneratorClassName == null)
                throw new ServletException("No token generator class specified."); //$NON-NLS-1$
            Class<?> c = Class.forName(tokenGeneratorClassName);
            ITokenGenerator tokenGenerator = (ITokenGenerator) c.newInstance();
            configBean.getApi().getAuth().setBearerToken(tokenGenerator.generateToken(request));
            break;
        }
        }
        g.writeObject(configBean);

        g.flush();
        response.getOutputStream().write(";".getBytes("UTF-8")); //$NON-NLS-1$ //$NON-NLS-2$
    } catch (Exception e) {
        throw new ServletException(e);
    } finally {
        IOUtils.closeQuietly(g);
    }
}

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From source file:org.apache.usergrid.chop.runner.drivers.ResultsLog.java

@Override
public void open() throws IOException {
    synchronized (isOpen) {
        if (isOpen.compareAndSet(false, true)) {
            resultCount.set(0);//  w w  w.j a  v a2s. c om

            // write the json header for recording the chop results
            JsonFactory factory = new JsonFactory();
            jgen = factory.createGenerator(new File(resultsFile.get()), JsonEncoding.UTF8);

            if (prettyPrint.get()) {
                jgen.useDefaultPrettyPrinter();
            }

            jgen.setCodec(new ObjectMapper());

            setupJsonStream();

            thread = new Thread(this, "ResultLog Writer");
            thread.start();
        }
    }
}

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From source file:org.graylog2.gelfclient.encoder.GelfMessageJsonEncoderTest.java

@Test(expectedExceptions = EncoderException.class)
public void testExceptionIsPassedThrough() throws Exception {
    final JsonFactory jsonFactory = mock(JsonFactory.class);
    when(jsonFactory.createGenerator(any(OutputStream.class), eq(JsonEncoding.UTF8)))
            .thenThrow(new IOException());

    final EmbeddedChannel channel = new EmbeddedChannel(new GelfMessageJsonEncoder(jsonFactory));
    assertTrue(channel.writeOutbound(new GelfMessage("test")));
}

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From source file:org.springframework.data.elasticsearch.core.DefaultResultMapper.java

private String buildJSONFromFields(Collection<SearchHitField> values) {
    JsonFactory nodeFactory = new JsonFactory();
    try {//from w w  w .  j  a va  2 s .c  om
        ByteArrayOutputStream stream = new ByteArrayOutputStream();
        JsonGenerator generator = nodeFactory.createGenerator(stream, JsonEncoding.UTF8);
        generator.writeStartObject();
        for (SearchHitField value : values) {
            if (value.getValues().size() > 1) {
                generator.writeArrayFieldStart(value.getName());
                for (Object val : value.getValues()) {
                    generator.writeObject(val);
                }
                generator.writeEndArray();
            } else {
                generator.writeObjectField(value.getName(), value.getValue());
            }
        }
        generator.writeEndObject();
        generator.flush();
        return new String(stream.toByteArray(), Charset.forName("UTF-8"));
    } catch (IOException e) {
        return null;
    }
}

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From source file:com.predic8.membrane.core.interceptor.authentication.session.TelekomSMSTokenProvider.java

@Override
protected void sendSMS(String text, String recipientNumber) {
    recipientNumber = recipientNumber.replaceAll("^00", "\\+");

    try {/*from   w  ww.  jav  a  2s  .c om*/
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        JsonFactory jsonFactory = new JsonFactory();
        JsonGenerator jg = jsonFactory.createGenerator(baos, JsonEncoding.UTF8);

        jg.writeStartObject();
        jg.writeObjectFieldStart("outboundSMSMessageRequest");
        jg.writeArrayFieldStart("address");
        jg.writeString("tel:" + recipientNumber);
        jg.writeEndArray();
        jg.writeStringField("senderAddress", senderAddress);
        jg.writeObjectFieldStart("outboundSMSTextMessage");
        jg.writeStringField("message", text);
        jg.writeEndObject();
        jg.writeStringField("outboundEncoding", "7bitGSM");
        jg.writeStringField("clientCorrelator", "" + ((long) (Math.random() * Long.MAX_VALUE)));
        if (senderName != null)
            jg.writeStringField("senderName", senderName);
        jg.writeEndObject();
        jg.writeEndObject();

        jg.close();

        Exchange exc = new Request.Builder()
                .post("https://gateway.developer.telekom.com/plone/sms/rest/"
                        + environment.name().toLowerCase() + "/smsmessaging/v1/outbound/"
                        + URLEncoder.encode(senderAddress, "UTF-8") + "/requests")
                .header("Host", "gateway.developer.telekom.com")
                .header("Authorization",
                        "OAuth realm=\"developergarden.com\",oauth_token=\"" + getAccessToken() + "\"")
                .header("Accept", "application/json").header("Content-Type", "application/json")
                .body(baos.toByteArray()).buildExchange();

        exc.setRule(new NullRule() {
            @Override
            public SSLProvider getSslOutboundContext() {
                return new SSLContext(new SSLParser(), new ResolverMap(), null);
            }
        });
        hc.call(exc, false, true);

        if (exc.getResponse().getStatusCode() != 201)
            throw new RuntimeException("Could not send SMS: " + exc.getResponse());

        log.debug("sent SMS to " + recipientNumber);
    } catch (Exception e2) {
        throw new RuntimeException(e2);
    }
}

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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;/*  ww w.  j a va  2 s. c  o m*/

    jGenerator = jFactory.createGenerator(_output, JsonEncoding.UTF8);
    jGenerator.writeStartArray();

    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();

}

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From source file:net.floodlightcontroller.configuration.ConfigurationManager.java

@Override
public String showConfiguration(String fileName) {
    ObjectMapper mapper = new ObjectMapper();
    ObjectNode rootNode = createJsonRootNode();
    JsonFactory f = new JsonFactory();
    OutputStream out = new ByteArrayOutputStream();
    JsonGenerator g = null;//from ww w.ja v a  2 s . c o  m
    try {
        g = f.createGenerator(out, JsonEncoding.UTF8);
        g.useDefaultPrettyPrinter();
        mapper.writeTree(g, rootNode);
    } catch (IOException e) {
        return "Error: Could not parse the JSON configuration file.";
    }
    return out.toString();
}

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From source file:com.proofpoint.jaxrs.JsonMapper.java

@Override
public void writeTo(Object value, Class<?> type, Type genericType, Annotation[] annotations,
        MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream outputStream)
        throws IOException {
    // Prevent broken browser from attempting to render the json as html
    httpHeaders.add(HttpHeaders.X_CONTENT_TYPE_OPTIONS, "nosniff");

    JsonFactory jsonFactory = objectMapper.getFactory();
    jsonFactory.setCharacterEscapes(HTMLCharacterEscapes.INSTANCE);

    JsonGenerator jsonGenerator = jsonFactory.createGenerator(outputStream, JsonEncoding.UTF8);

    // Important: we are NOT to close the underlying stream after
    // mapping, so we need to instruct generator:
    jsonGenerator.disable(JsonGenerator.Feature.AUTO_CLOSE_TARGET);

    // Pretty print?
    if (isPrettyPrintRequested()) {
        jsonGenerator.useDefaultPrettyPrinter();
    }/*  ww w.  jav a  2s.  c  o m*/

    // 04-Mar-2010, tatu: How about type we were given? (if any)
    JavaType rootType = null;
    if (genericType != null && value != null) {
        // 10-Jan-2011, tatu: as per [JACKSON-456], it's not safe to just force root
        //    type since it prevents polymorphic type serialization. Since we really
        //    just need this for generics, let's only use generic type if it's truly
        //    generic.
        if (genericType.getClass() != Class.class) { // generic types are other implementations of 'java.lang.reflect.Type'
            // This is still not exactly right; should root type be further
            // specialized with 'value.getClass()'? Let's see how well this works before
            // trying to come up with more complete solution.
            rootType = objectMapper.getTypeFactory().constructType(genericType);
            // 26-Feb-2011, tatu: To help with [JACKSON-518], we better recognize cases where
            //    type degenerates back into "Object.class" (as is the case with plain TypeVariable,
            //    for example), and not use that.
            //
            if (rootType.getRawClass() == Object.class) {
                rootType = null;
            }
        }
    }

    ObjectWriter writer;
    if (rootType != null) {
        writer = objectMapper.writerWithType(rootType);
    } else {
        writer = objectMapper.writer();
    }

    writer.writeValue(jsonGenerator, value);

    // add a newline so when you use curl it looks nice
    outputStream.write('\n');
}

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