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.jboss.dashboard.ui.controller.ControllerServlet.java

protected void initError() {
    // Write some data to file, allowing external checking of what went wrong.
    File outputFile = new File(Application.lookup().getBaseAppDirectory() + "/ControllerError.txt");
    FileWriter writer = null;/*  w w  w .  j a  va2 s .com*/
    try {
        StringWriter sw = new StringWriter();
        initException.printStackTrace(new PrintWriter(sw));
        writer = new FileWriter(outputFile);
        writer.write(initException.getMessage() + "\n" + sw.toString());
        outputFile.deleteOnExit();
        sw.close();
    } catch (IOException e1) {
        log.error("Error writing to log file: ", e1);
    } finally {
        Application.lookup().shutdown();
        if (writer != null) {
            try {
                writer.close();
            } catch (IOException e2) {
                log.error("Error closing log file: ", e2);
            }
        }
    }
}

---

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

@Test
@TestDir/*  w  w  w  .j  av  a  2 s . c o  m*/
@SuppressWarnings("unchecked")
public void service() throws Exception {
    String dir = getTestDir().getAbsolutePath();
    String services = StringUtils.toString(Arrays.asList(InstrumentationService.class.getName()), ",");
    XConfiguration conf = new XConfiguration();
    conf.set("server.services", services);
    Server server = new Server("server", dir, dir, dir, dir, conf);
    server.init();

    Instrumentation instrumentation = server.get(Instrumentation.class);
    Assert.assertNotNull(instrumentation);
    instrumentation.incr("g", "c", 1);
    instrumentation.incr("g", "c", 2);
    instrumentation.incr("g", "c1", 2);

    Instrumentation.Cron cron = instrumentation.createCron();
    cron.start();
    sleep(100);
    cron.stop();
    instrumentation.addCron("g", "t", cron);
    cron = instrumentation.createCron();
    cron.start();
    sleep(200);
    cron.stop();
    instrumentation.addCron("g", "t", cron);

    Instrumentation.Variable<String> var = new Instrumentation.Variable<String>() {
        @Override
        public String getValue() {
            return "foo";
        }
    };
    instrumentation.addVariable("g", "v", var);

    Instrumentation.Variable<Long> varToSample = new Instrumentation.Variable<Long>() {
        @Override
        public Long getValue() {
            return 1L;
        }
    };
    instrumentation.addSampler("g", "s", 10, varToSample);

    Map<String, ?> snapshot = instrumentation.getSnapshot();
    Assert.assertNotNull(snapshot.get("os-env"));
    Assert.assertNotNull(snapshot.get("sys-props"));
    Assert.assertNotNull(snapshot.get("jvm"));
    Assert.assertNotNull(snapshot.get("counters"));
    Assert.assertNotNull(snapshot.get("timers"));
    Assert.assertNotNull(snapshot.get("variables"));
    Assert.assertNotNull(snapshot.get("samplers"));
    Assert.assertNotNull(((Map<String, String>) snapshot.get("os-env")).get("PATH"));
    Assert.assertNotNull(((Map<String, String>) snapshot.get("sys-props")).get("java.version"));
    Assert.assertNotNull(((Map<String, ?>) snapshot.get("jvm")).get("free.memory"));
    Assert.assertNotNull(((Map<String, ?>) snapshot.get("jvm")).get("max.memory"));
    Assert.assertNotNull(((Map<String, ?>) snapshot.get("jvm")).get("total.memory"));
    Assert.assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("counters")).get("g"));
    Assert.assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("timers")).get("g"));
    Assert.assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("variables")).get("g"));
    Assert.assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("samplers")).get("g"));
    Assert.assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("counters")).get("g").get("c"));
    Assert.assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("counters")).get("g").get("c1"));
    Assert.assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("timers")).get("g").get("t"));
    Assert.assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("variables")).get("g").get("v"));
    Assert.assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("samplers")).get("g").get("s"));

    StringWriter writer = new StringWriter();
    JSONObject.writeJSONString(snapshot, writer);
    writer.close();
    server.destroy();
}

---

From source file:org.wso2.carbon.bpel.ui.bpel2svg.impl.SVGImpl.java

public String generateSVGString() {
    try {/*from  w  w  w .j  a v a 2s .co  m*/
        //Define a String writer
        StringWriter writer = new StringWriter();
        //Get the SVG document from the root activity i.e. the Process Activity
        SVGDocument svgDoc = getRootActivity().getSVGDocument();
        if (svgDoc != null) {
            this.svgDoc = svgDoc;
        }
        //Method wrapper for SVGTranscoder.
        DOMUtilities.writeDocument(svgDoc, writer);
        writer.close();
        svgStr = writer.toString();
        return svgStr;
    } catch (IOException ioe) {
        log.error("Error Generating SVG String", ioe);
        return null;
    }
}

---

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

protected ContentProvider createControlContent() throws IOException {
    this.packageControlFile.set(BinaryPackageControlFile.Fields.INSTALLED_SIZE,
            Long.toString(this.installedSize));

    final StringWriter sw = new StringWriter();
    final ControlFileWriter writer = new ControlFileWriter(sw, BinaryPackageControlFile.FORMATTERS);
    writer.writeEntries(this.packageControlFile.getValues());
    sw.close();

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

---

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

@Test
@TestDir//from   w w  w . j  a v  a  2  s  .c  om
@SuppressWarnings("unchecked")
public void service() throws Exception {
    String dir = TestDirHelper.getTestDir().getAbsolutePath();
    String services = StringUtils.join(",", Arrays.asList(InstrumentationService.class.getName()));
    Configuration conf = new Configuration(false);
    conf.set("server.services", services);
    Server server = new Server("server", dir, dir, dir, dir, conf);
    server.init();

    Instrumentation instrumentation = server.get(Instrumentation.class);
    assertNotNull(instrumentation);
    instrumentation.incr("g", "c", 1);
    instrumentation.incr("g", "c", 2);
    instrumentation.incr("g", "c1", 2);

    Instrumentation.Cron cron = instrumentation.createCron();
    cron.start();
    sleep(100);
    cron.stop();
    instrumentation.addCron("g", "t", cron);
    cron = instrumentation.createCron();
    cron.start();
    sleep(200);
    cron.stop();
    instrumentation.addCron("g", "t", cron);

    Instrumentation.Variable<String> var = new Instrumentation.Variable<String>() {
        @Override
        public String getValue() {
            return "foo";
        }
    };
    instrumentation.addVariable("g", "v", var);

    Instrumentation.Variable<Long> varToSample = new Instrumentation.Variable<Long>() {
        @Override
        public Long getValue() {
            return 1L;
        }
    };
    instrumentation.addSampler("g", "s", 10, varToSample);

    Map<String, ?> snapshot = instrumentation.getSnapshot();
    assertNotNull(snapshot.get("os-env"));
    assertNotNull(snapshot.get("sys-props"));
    assertNotNull(snapshot.get("jvm"));
    assertNotNull(snapshot.get("counters"));
    assertNotNull(snapshot.get("timers"));
    assertNotNull(snapshot.get("variables"));
    assertNotNull(snapshot.get("samplers"));
    assertNotNull(((Map<String, String>) snapshot.get("os-env")).get("PATH"));
    assertNotNull(((Map<String, String>) snapshot.get("sys-props")).get("java.version"));
    assertNotNull(((Map<String, ?>) snapshot.get("jvm")).get("free.memory"));
    assertNotNull(((Map<String, ?>) snapshot.get("jvm")).get("max.memory"));
    assertNotNull(((Map<String, ?>) snapshot.get("jvm")).get("total.memory"));
    assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("counters")).get("g"));
    assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("timers")).get("g"));
    assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("variables")).get("g"));
    assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("samplers")).get("g"));
    assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("counters")).get("g").get("c"));
    assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("counters")).get("g").get("c1"));
    assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("timers")).get("g").get("t"));
    assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("variables")).get("g").get("v"));
    assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("samplers")).get("g").get("s"));

    StringWriter writer = new StringWriter();
    JSONObject.writeJSONString(snapshot, writer);
    writer.close();
    server.destroy();
}

---

From source file:org.yes.cart.service.mail.impl.MailComposerImpl.java

/**
 * Merge model with template.//from   w  w  w. j a  va 2s.co  m
 *
 * @param view  groovy string template
 * @param model model
 * @return merged view.
 * @throws java.io.IOException    in case of inline resources can not be found
 * @throws ClassNotFoundException in case if something wrong with template engine
 */
String merge(final String view, final Map<String, Object> model) throws IOException, ClassNotFoundException {
    final Writable writable = templateEngine.createTemplate(view).make(model);
    final StringWriter stringWriter = new StringWriter();
    writable.writeTo(stringWriter);
    stringWriter.close();
    return stringWriter.toString();
}

---

From source file:gdv.xport.util.HtmlFormatter.java

private void writeSatz(final Satz satz) throws XMLStreamException, IOException {
    StringWriter buffer = new StringWriter();
    XMLStreamWriter xmlStreamWriter = XML_OUTPUT_FACTORY.createXMLStreamWriter(buffer);
    writeTo(xmlStreamWriter, satz, zeile);
    xmlStreamWriter.close();/*from   w  w w  . j  a  va  2  s .  c  om*/
    buffer.close();
    this.write(buffer.toString());
}

---

From source file:com.webcohesion.enunciate.modules.ruby_json_client.RubyJSONClientModule.java

/**
 * Processes the specified template with the given model.
 *
 * @param templateURL The template URL.//from   w  w w.jav a  2  s .com
 * @param model       The root model.
 */
public String processTemplate(URL templateURL, Object model) throws IOException, TemplateException {
    debug("Processing template %s.", templateURL);
    Configuration configuration = new Configuration(Configuration.VERSION_2_3_22);

    configuration.setTemplateLoader(new URLTemplateLoader() {
        protected URL getURL(String name) {
            try {
                return new URL(name);
            } catch (MalformedURLException e) {
                return null;
            }
        }
    });

    configuration.setTemplateExceptionHandler(new TemplateExceptionHandler() {
        public void handleTemplateException(TemplateException templateException, Environment environment,
                Writer writer) throws TemplateException {
            throw templateException;
        }
    });

    configuration.setLocalizedLookup(false);
    configuration.setDefaultEncoding("UTF-8");
    configuration.setObjectWrapper(new RubyJSONClientObjectWrapper());
    Template template = configuration.getTemplate(templateURL.toString());
    StringWriter unhandledOutput = new StringWriter();
    template.process(model, unhandledOutput);
    unhandledOutput.close();
    return unhandledOutput.toString();
}

---

From source file:org.latticesoft.util.common.StringUtil.java

/**
 * Parse the stack trace to get the various information:
 * package name, class name, method name, and line number
 * @param t throwable to be parsed.//from  ww  w.  j  a v a  2  s .co m
 * @return a collection of string stating the results in a
 * string array form. The elements of the string array is as
 * listed above
 */
public static Collection parseStackTrace(Throwable t) {
    StringWriter sw = new StringWriter();
    PrintWriter pw = new PrintWriter(sw);
    t.printStackTrace(pw);
    pw.flush();
    sw.flush();
    StringBuffer sb = sw.getBuffer();
    try {
        pw.close();
    } catch (Exception ex) {
    }
    try {
        sw.close();
    } catch (Exception ex) {
    }
    sw = null;
    pw = null;

    Collection c = StringUtil.tokenize(sb.toString(), "\n");
    ArrayList a = new ArrayList();
    Iterator iter = c.iterator();
    iter.next(); // drop 1st element;
    String className = null, packageName = null;
    String methodName = null, lineNumber = null;
    int index = 0;
    String result[] = null;
    while (iter.hasNext()) {
        result = new String[4];
        String s = (String) iter.next();

        index = s.indexOf("(");
        lineNumber = s.substring(index, s.length());
        packageName = s.substring(3, index);

        index = packageName.lastIndexOf(".");
        methodName = packageName.substring(index + 1, packageName.length());
        packageName = packageName.substring(0, index);

        index = packageName.lastIndexOf(".");
        className = packageName.substring(index + 1, packageName.length());
        packageName = packageName.substring(0, index);

        lineNumber = StringUtil.substring(lineNumber, ":", ")");

        if (log.isDebugEnabled()) {
            log.debug("packageName:" + packageName);
            log.debug("className:" + className);
            log.debug("methodName:" + methodName);
            log.debug("lineNumber:" + lineNumber);
        }

        result[0] = packageName;
        result[1] = className;
        result[2] = methodName;
        result[3] = lineNumber;
        a.add(result);
    }
    return a;
}

---

From source file:org.apache.jackrabbit.core.journal.AbstractRecord.java

/**
 * {@inheritDoc}//from   ww  w  .  j  a  v a  2s. c  o  m
 */
public void writePrivilegeDef(PrivilegeDefinition privilegeDefinition) throws JournalException {
    try {
        Map<String, String> nsMapping = new HashMap<String, String>();
        String uri = privilegeDefinition.getName().getNamespaceURI();
        nsMapping.put(nsResolver.getPrefix(uri), uri);
        for (Name n : privilegeDefinition.getDeclaredAggregateNames()) {
            nsMapping.put(nsResolver.getPrefix(n.getNamespaceURI()), n.getNamespaceURI());
        }

        StringWriter sw = new StringWriter();
        PrivilegeDefinitionWriter writer = new PrivilegeDefinitionWriter("text/xml");
        writer.writeDefinitions(sw, new PrivilegeDefinition[] { privilegeDefinition }, nsMapping);
        sw.close();

        writeString(sw.toString());

    } catch (IOException e) {
        String msg = "I/O error while writing privilege definition.";
        throw new JournalException(msg, e);
    } catch (NamespaceException e) {
        String msg = "NamespaceException error while writing privilege definition.";
        throw new JournalException(msg, e);
    }
}

---

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