Example usage for java.io StringWriter close

Introduction

In this page you can find the example usage for java.io StringWriter close.

Prototype

public void close() throws IOException 

Source Link

Document

Closing a StringWriter has no effect.

Usage

From source file:org.dia.kafka.isatools.producer.ISAToolsKafkaProducer.java

/**
 * Performs the parsing request to Tika/*  w  w  w.  j  a va2 s. c  o  m*/
 *
 * @param files
 * @return
 */
public static List<JSONObject> doTikaRequest(List<String> files) {
    List<JSONObject> jsonObjs = new ArrayList<JSONObject>();

    try {
        Parser parser = new ISArchiveParser();
        StringWriter strWriter = new StringWriter();

        for (String file : files) {
            JSONObject jsonObject = new JSONObject();

            // get metadata from tika
            InputStream stream = TikaInputStream.get(new File(file));
            ContentHandler handler = new ToHTMLContentHandler();
            Metadata metadata = new Metadata();
            ParseContext context = new ParseContext();
            parser.parse(stream, handler, metadata, context);

            // get json object
            jsonObject.put(SOURCE_TAG, ISATOOLS_SOURCE_VAL);
            JsonMetadata.toJson(metadata, strWriter);
            jsonObject = adjustUnifiedSchema((JSONObject) jsonParser.parse(new String(strWriter.toString())));
            //TODO Tika parsed content is not used needed for now
            //jsonObject.put(X_TIKA_CONTENT, handler.toString());
            System.out.format("[%s] Tika message: %s \n", ISAToolsKafkaProducer.class.getSimpleName(),
                    jsonObject.toJSONString());

            jsonObjs.add(jsonObject);

            strWriter.getBuffer().setLength(0);
        }
        strWriter.flush();
        strWriter.close();

    } catch (IOException e) {
        e.printStackTrace();
    } catch (ParseException e) {
        e.printStackTrace();
    } catch (SAXException e) {
        e.printStackTrace();
    } catch (TikaException e) {
        e.printStackTrace();
    }
    return jsonObjs;
}

---

From source file:com.nebhale.cyclinglibrary.web.json.AbstractJsonSerializerTest.java

@Test
public final void test() throws IOException, ParseException {
    ObjectMapper objectMapper = new ObjectMapper();
    objectMapper.registerModule(new SimpleModule().addSerializer(new LinkJsonSerializer()));

    T value = getValue();//from www.j  a v a 2 s  .  c  om
    StringWriter out = new StringWriter();
    JsonGenerator jsonGenerator = objectMapper.getFactory().createJsonGenerator(out);
    SerializerProvider serializerProvider = objectMapper.getSerializerProvider();

    try {
        getJsonSerializer().serialize(value, jsonGenerator, serializerProvider);
        jsonGenerator.flush();
        assertResult(out.toString());
    } finally {
        out.close();
        jsonGenerator.close();
    }
}

---

From source file:org.easyrec.service.domain.profile.impl.ProfileServiceImpl.java

public void insertOrUpdateSimpleDimension(Integer tenantId, Integer itemId, String itemTypeId,
        String dimensionXPath, String value) {

    XPathFactory xpf = XPathFactory.newInstance();
    try {/*from   ww w .j  a v a 2  s .com*/
        // load and parse the profile
        DocumentBuilder db = validationParsers.get(tenantId).get(itemTypeId);
        Document doc = db.parse(new InputSource(new StringReader(getProfile(tenantId, itemId, itemTypeId))));
        // check if the element exists
        XPath xp = xpf.newXPath();
        Node node = (Node) xp.evaluate(dimensionXPath, doc, XPathConstants.NODE);
        // if the element exists, just update the value
        if (node != null) {
            // if value doesn't change, there is no need to alter the profile and write it to database
            if (value.equals(node.getTextContent()))
                return;
            node.setTextContent(value);
        } else { // if the element cannot be found, insert it at the position given in the dimensionXPath
            // follow the XPath from bottom to top until you find the first existing path element
            String tmpPath = dimensionXPath;
            while (node == null) {
                tmpPath = dimensionXPath.substring(0, tmpPath.lastIndexOf("/"));
                node = (Node) xp.evaluate(tmpPath, doc, XPathConstants.NODE);
            }
            // found the correct node to insert or ended at Document root, hence insert
            insertElement(doc, node, dimensionXPath.substring(tmpPath.length()/*, dimensionXPath.length()*/),
                    value);
        }

        StringWriter writer = new StringWriter();
        Result result = new StreamResult(writer);
        trans.transform(new DOMSource(doc), result);
        writer.close();
        String xml = writer.toString();
        logger.debug(xml);
        storeProfile(tenantId, itemId, itemTypeId, xml, true);

    } catch (Exception e) {
        logger.error("Error inserting Simple Dimension: " + e.getMessage());
        e.printStackTrace();
    }

}

---

From source file:org.easyrec.service.core.impl.ProfileServiceImpl.java

/**
 * Used//from w w w. java2  s.c om
 * @param tenantId
 * @param itemId
 * @param itemTypeId
 * @param dimensionXPath
 * @param value
 *
 */
@Override
public synchronized boolean storeProfileField(Integer tenantId, String itemId, String itemTypeId,
        String dimensionXPath, String value) throws Exception {

    int itemIntID = idMappingDAO.lookup(itemId);

    XPathFactory xpf = XPathFactory.newInstance();

    // load and parse the profile
    Document doc = getProfileXMLDocument(tenantId, itemIntID, itemTypeId);

    // follow the XPath from bottom to top until you find the first existing path element
    XPath xp = xpf.newXPath();
    String tmpPath = dimensionXPath;
    NodeList nodeList = (NodeList) xp.evaluate(tmpPath, doc, XPathConstants.NODESET);
    if (nodeList.getLength() > 1)
        throw new MultipleProfileFieldsFoundException(nodeList.getLength() + " nodes found.");

    Node node = null;
    if (nodeList.getLength() == 1)
        nodeList.item(0).setTextContent(value);
    else {
        while (node == null) {
            tmpPath = dimensionXPath.substring(0, tmpPath.lastIndexOf("/"));
            if ("".equals(tmpPath))
                tmpPath = "/";
            node = (Node) xp.evaluate(tmpPath, doc, XPathConstants.NODE);
        }
        insertElement(doc, node, dimensionXPath.substring(tmpPath.length()), value);
    }

    StringWriter writer = new StringWriter();
    Result result = new StreamResult(writer);
    trans.transform(new DOMSource(doc), result);
    writer.close();
    String xml = writer.toString();
    logger.debug(xml);
    storeProfile(tenantId, itemId, itemTypeId, xml);

    return true;
}

---

From source file:io.fabric8.vertx.maven.plugin.SetupMojoTest.java

@Test
public void testAddVertxMavenPluginWithVertxVersion() throws Exception {

    System.setProperty("vertxVersion", "3.4.0");

    InputStream pomFile = getClass().getResourceAsStream("/unit/setup/vmp-setup-pom.xml");
    assertNotNull(pomFile);/*from  ww  w .  ja va 2  s .c o m*/
    MavenXpp3Reader xpp3Reader = new MavenXpp3Reader();
    Model model = xpp3Reader.read(pomFile);

    MavenProject project = new MavenProject(model);

    Optional<Plugin> vmPlugin = MojoUtils.hasPlugin(project, "io.fabric8:vertx-maven-plugin");
    assertFalse(vmPlugin.isPresent());

    Plugin vertxMavenPlugin = plugin("io.fabric8", "vertx-maven-plugin",
            MojoUtils.getVersion("vertx-maven-plugin-version"));

    PluginExecution pluginExec = new PluginExecution();
    pluginExec.addGoal("initialize");
    pluginExec.addGoal("package");
    pluginExec.setId("vmp-init-package");
    vertxMavenPlugin.addExecution(pluginExec);

    vertxMavenPlugin.setConfiguration(configuration(element("redeploy", "true")));

    model.getBuild().getPlugins().add(vertxMavenPlugin);

    String vertxVersion = System.getProperty("vertxVersion") == null
            ? MojoUtils.getVersion("vertx-core-version")
            : System.getProperty("vertxVersion");

    model.getProperties().putIfAbsent("vertx.version", vertxVersion);

    Dependency vertxBom = dependency("io.vertx", "vertx-dependencies", "${vertx.version}");
    vertxBom.setType("pom");
    vertxBom.setScope("import");

    addDependencies(model, vertxBom);

    MavenXpp3Writer xpp3Writer = new MavenXpp3Writer();
    StringWriter updatedPom = new StringWriter();

    xpp3Writer.write(updatedPom, model);
    updatedPom.flush();
    updatedPom.close();

    //System.out.println(updatedPom);

    //Check if it has been added

    model = xpp3Reader.read(new StringReader(updatedPom.toString()));
    project = new MavenProject(model);
    vmPlugin = MojoUtils.hasPlugin(project, "io.fabric8:vertx-maven-plugin");
    assertTrue(vmPlugin.isPresent());
    Plugin vmp = project.getPlugin("io.fabric8:vertx-maven-plugin");
    assertNotNull(vmp);
    Xpp3Dom pluginConfig = (Xpp3Dom) vmp.getConfiguration();
    assertNotNull(pluginConfig);
    String redeploy = pluginConfig.getChild("redeploy").getValue();
    assertNotNull(redeploy);
    assertTrue(Boolean.valueOf(redeploy));
    Properties projectProps = project.getProperties();
    assertNotNull(projectProps);
    assertFalse(projectProps.isEmpty());
    assertEquals(projectProps.getProperty("vertx.version"), vertxVersion);
}

---

From source file:org.eclipse.packagedrone.utils.deb.build.DebianPackageWriter.java

protected ContentProvider createConfFilesContent() throws IOException {
    if (this.confFiles.isEmpty()) {
        return ContentProvider.NULL_CONTENT;
    }//www.  j  a  v a  2 s . co m

    final StringWriter sw = new StringWriter();

    for (final String confFile : this.confFiles) {
        sw.append(confFile).append('\n');
    }

    sw.close();
    return new StaticContentProvider(sw.toString());
}

---

From source file:io.reactiverse.vertx.maven.plugin.SetupMojoTest.java

@Test
public void testAddVertxMavenPluginWithVertxVersion() throws Exception {

    System.setProperty("vertxVersion", "3.4.0");

    InputStream pomFile = getClass().getResourceAsStream("/unit/setup/vmp-setup-pom.xml");
    assertNotNull(pomFile);/*from w w w  .j a v a 2 s  .co m*/
    MavenXpp3Reader xpp3Reader = new MavenXpp3Reader();
    Model model = xpp3Reader.read(pomFile);

    MavenProject project = new MavenProject(model);

    Optional<Plugin> vmPlugin = MojoUtils.hasPlugin(project, "io.reactiverse:vertx-maven-plugin");
    assertFalse(vmPlugin.isPresent());

    Plugin vertxMavenPlugin = plugin("io.reactiverse", "vertx-maven-plugin",
            MojoUtils.getVersion("vertx-maven-plugin-version"));

    PluginExecution pluginExec = new PluginExecution();
    pluginExec.addGoal("initialize");
    pluginExec.addGoal("package");
    pluginExec.setId("vmp-init-package");
    vertxMavenPlugin.addExecution(pluginExec);

    vertxMavenPlugin.setConfiguration(configuration(element("redeploy", "true")));

    model.getBuild().getPlugins().add(vertxMavenPlugin);

    String vertxVersion = System.getProperty("vertxVersion") == null
            ? MojoUtils.getVersion("vertx-core-version")
            : System.getProperty("vertxVersion");

    model.getProperties().putIfAbsent("vertx.version", vertxVersion);

    Dependency vertxBom = dependency("io.vertx", "vertx-dependencies", "${vertx.version}");
    vertxBom.setType("pom");
    vertxBom.setScope("import");

    addDependencies(model, vertxBom);

    MavenXpp3Writer xpp3Writer = new MavenXpp3Writer();
    StringWriter updatedPom = new StringWriter();

    xpp3Writer.write(updatedPom, model);
    updatedPom.flush();
    updatedPom.close();

    //System.out.println(updatedPom);

    //Check if it has been added

    model = xpp3Reader.read(new StringReader(updatedPom.toString()));
    project = new MavenProject(model);
    vmPlugin = MojoUtils.hasPlugin(project, "io.reactiverse:vertx-maven-plugin");
    assertTrue(vmPlugin.isPresent());
    Plugin vmp = project.getPlugin("io.reactiverse:vertx-maven-plugin");
    assertNotNull(vmp);
    Xpp3Dom pluginConfig = (Xpp3Dom) vmp.getConfiguration();
    assertNotNull(pluginConfig);
    String redeploy = pluginConfig.getChild("redeploy").getValue();
    assertNotNull(redeploy);
    assertTrue(Boolean.valueOf(redeploy));
    Properties projectProps = project.getProperties();
    assertNotNull(projectProps);
    assertFalse(projectProps.isEmpty());
    assertEquals(projectProps.getProperty("vertx.version"), vertxVersion);
}

---

From source file:org.apache.hadoop.lib.service.instrumentation.TestInstrumentationService.java

@Test
public void variableHolder() throws Exception {
    InstrumentationService.VariableHolder<String> variableHolder = new InstrumentationService.VariableHolder<String>();

    variableHolder.var = new Instrumentation.Variable<String>() {
        @Override/*from w  w w  .ja va  2 s.c  o m*/
        public String getValue() {
            return "foo";
        }
    };

    JSONObject json = (JSONObject) new JSONParser().parse(variableHolder.toJSONString());
    assertEquals(json.size(), 1);
    assertEquals(json.get("value"), "foo");

    StringWriter writer = new StringWriter();
    variableHolder.writeJSONString(writer);
    writer.close();
    json = (JSONObject) new JSONParser().parse(writer.toString());
    assertEquals(json.size(), 1);
    assertEquals(json.get("value"), "foo");
}

---

From source file:com.cloudera.lib.service.instrumentation.TestInstrumentationService.java

@Test
public void sampler() throws Exception {
    final long value[] = new long[1];
    Instrumentation.Variable<Long> var = new Instrumentation.Variable<Long>() {
        @Override// ww  w .j a v a 2s  . com
        public Long getValue() {
            return value[0];
        }
    };

    InstrumentationService.Sampler sampler = new InstrumentationService.Sampler();
    sampler.init(4, var);
    Assert.assertEquals(sampler.getRate(), 0f, 0.0001);
    sampler.sample();
    Assert.assertEquals(sampler.getRate(), 0f, 0.0001);
    value[0] = 1;
    sampler.sample();
    Assert.assertEquals(sampler.getRate(), (0d + 1) / 2, 0.0001);
    value[0] = 2;
    sampler.sample();
    Assert.assertEquals(sampler.getRate(), (0d + 1 + 2) / 3, 0.0001);
    value[0] = 3;
    sampler.sample();
    Assert.assertEquals(sampler.getRate(), (0d + 1 + 2 + 3) / 4, 0.0001);
    value[0] = 4;
    sampler.sample();
    Assert.assertEquals(sampler.getRate(), (4d + 1 + 2 + 3) / 4, 0.0001);

    JSONObject json = (JSONObject) new JSONParser().parse(sampler.toJSONString());
    Assert.assertEquals(json.size(), 2);
    Assert.assertEquals(json.get("sampler"), sampler.getRate());
    Assert.assertEquals(json.get("size"), 4L);

    StringWriter writer = new StringWriter();
    sampler.writeJSONString(writer);
    writer.close();
    json = (JSONObject) new JSONParser().parse(writer.toString());
    Assert.assertEquals(json.size(), 2);
    Assert.assertEquals(json.get("sampler"), sampler.getRate());
    Assert.assertEquals(json.get("size"), 4L);
}

---

From source file:org.easyrec.service.domain.profile.impl.ProfileServiceImpl.java

public void insertOrUpdateMultiDimension(Integer tenantId, Integer itemId, String itemTypeId,
        String dimensionXPath, List<String> values) {

    XPathFactory xpf = XPathFactory.newInstance();

    try {//  w  ww.ja va2  s  . c om
        // load and parse the profile
        DocumentBuilder db = validationParsers.get(tenantId).get(itemTypeId);
        Document doc = db.parse(new InputSource(new StringReader(getProfile(tenantId, itemId, itemTypeId))));
        // check if the element exists
        Node node = null;
        Node parent = null;
        XPath xp = xpf.newXPath();
        for (Iterator<String> it = values.iterator(); it.hasNext();) {
            String value = it.next();
            // look if value already exists
            node = (Node) xp.evaluate(dimensionXPath + "[text()='" + value + "']", doc, XPathConstants.NODE);
            // if value exists, value can be discarded
            if (node != null) {
                // optimization: if a node was found, store the parent; later no new XPath evaluation is necessary
                parent = node.getParentNode();
                it.remove();
            }
        }
        if (values.isEmpty())
            return; // nothing left to do
        String parentPath = dimensionXPath.substring(0, dimensionXPath.lastIndexOf("/"));
        // find path to parent
        if (parent == null) {
            String tmpPath = parentPath;
            while (parent == null) {
                tmpPath = parentPath.substring(0, tmpPath.lastIndexOf("/"));
                parent = (Node) xp.evaluate(tmpPath, doc, XPathConstants.NODE);
            }
            parent = insertElement(doc, parent, parentPath.substring(tmpPath.length()), null);
        }
        String tag = dimensionXPath.substring(parentPath.length() + 1);
        for (String value : values) {
            Element el = doc.createElement(tag);
            el.setTextContent(value);
            parent.appendChild(el);
        }

        StringWriter writer = new StringWriter();
        Result result = new StreamResult(writer);
        trans.transform(new DOMSource(doc), result);
        writer.close();
        String xml = writer.toString();
        logger.debug(xml);
        storeProfile(tenantId, itemId, itemTypeId, xml, true);

    } catch (Exception e) {
        logger.error("Error inserting Multi Dimension: " + e.getMessage());
        e.printStackTrace();
    }
}

---

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