Example usage for java.io ByteArrayOutputStream reset

Introduction

In this page you can find the example usage for java.io ByteArrayOutputStream reset.

Prototype

public synchronized void reset() 

Source Link

Document

Resets the count field of this ByteArrayOutputStream to zero, so that all currently accumulated output in the output stream is discarded.

Usage

From source file:org.jboss.as.test.integration.management.cli.CliVariablesTestCase.java

/**
 * Tests if 'set' with no parameters prints all currently set variables
 * @throws Exception/*from  w ww  .  j a v  a 2s  .c  o  m*/
 */
@Test
public void testSetPrintsAllVariables() throws Exception {
    final String VAR1_NAME = "variable_1";
    final String VAR2_NAME = "variable_2";

    final String VAR1_VALUE = "value_1";
    final String VAR2_VALUE = "value_2";

    final ByteArrayOutputStream cliOut = new ByteArrayOutputStream();
    final CommandContext ctx = CLITestUtil.getCommandContext(cliOut);

    ctx.handle("set " + VAR1_NAME + "=" + VAR1_VALUE);
    ctx.handle("set " + VAR2_NAME + "=" + VAR2_VALUE);
    cliOut.reset();

    ctx.handle("echo $" + VAR1_NAME);
    ctx.handle("echo $" + VAR2_NAME);
    String echoResult = cliOut.toString();
    assertTrue(echoResult.contains(VAR1_VALUE));
    assertTrue(echoResult.contains(VAR2_VALUE));

    cliOut.reset();
    ctx.handle("set"); //print all variables
    String setResult = cliOut.toString();
    assertTrue(setResult.contains(VAR1_NAME + "=" + VAR1_VALUE));
    assertTrue(setResult.contains(VAR2_NAME + "=" + VAR2_VALUE));
    assertTrue(ctx.getExitCode() == 0);
}

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From source file:com.streamsets.pipeline.stage.destination.redis.RedisTarget.java

private void doPublish(Batch batch) throws StageException {
    Iterator<Record> records = batch.getRecords();
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    while (records.hasNext()) {
        Record record = records.next();//www. j  a  v  a2  s.c  o  m
        baos.reset();
        try {
            DataGenerator generator = this.generatorFactory.getGenerator(baos);
            generator.write(record);
            generator.close();

            for (String channel : conf.channel) {
                jedis.publish(channel, baos.toString());
            }
        } catch (JedisConnectionException ex) {
            throw new StageException(Errors.REDIS_06, ex.toString(), ex);
        } catch (IOException ex) {
            LOG.error(Errors.REDIS_04.getMessage(), conf.dataFormat.getLabel(), record);
            errorRecordHandler.onError(
                    new OnRecordErrorException(record, Errors.REDIS_04, conf.dataFormat.getLabel(), record));
        }
    }
}

---

From source file:com.qjdchina.qjdsale.MemberPictureFragment.java

private Bitmap compressImage(Bitmap image, int size) {

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    image.compress(Bitmap.CompressFormat.JPEG, 100, baos);//?100???baos
    int options = 100;
    while (baos.toByteArray().length / 1024 > size) { //??100kb,
        baos.reset();//?baos?baos
        image.compress(Bitmap.CompressFormat.JPEG, options, baos);//options%??baos
        options -= 10;//??10
    }/*w w w  .j  av a2  s. co m*/
    ByteArrayInputStream isBm = new ByteArrayInputStream(baos.toByteArray());//??baosByteArrayInputStream
    Bitmap bitmap = BitmapFactory.decodeStream(isBm, null, null);//ByteArrayInputStream??
    return bitmap;
}

---

From source file:org.jboss.as.test.integration.management.cli.CliVariablesTestCase.java

/**
 * Tests variable chaining: set var2=$var1
 * @throws Exception/* ww  w . j  a  va 2s  .c  o m*/
 */
@Test
public void testVariableChaining() throws Exception {
    final String VAR1_NAME = "variable_1";
    final String VAR2_NAME = "variable_2";

    final String VAR1_VALUE = "value_1";
    final String VAR2_VALUE = "$" + VAR1_NAME;

    final ByteArrayOutputStream cliOut = new ByteArrayOutputStream();
    final CommandContext ctx = CLITestUtil.getCommandContext(cliOut);

    ctx.handle("set " + VAR1_NAME + "=" + VAR1_VALUE);
    ctx.handle("set " + VAR2_NAME + "=" + VAR2_VALUE);
    cliOut.reset();

    ctx.handle("echo $" + VAR1_NAME);
    ctx.handle("echo $" + VAR2_NAME);
    String echoResult = cliOut.toString();
    assertTrue(echoResult.contains(VAR1_VALUE));
    assertFalse(echoResult.contains(VAR2_VALUE));
    assertTrue(StringUtils.countMatches(echoResult, VAR1_VALUE) == 2);

    cliOut.reset();
    ctx.handle("set"); //print all variables
    String setResult = cliOut.toString();
    assertTrue(setResult.contains(VAR1_NAME + "=" + VAR1_VALUE));
    assertTrue(setResult.contains(VAR2_NAME + "=" + VAR1_VALUE));
    assertTrue(ctx.getExitCode() == 0);
}

---

From source file:org.jboss.arquillian.ce.adapter.AbstractOpenShiftAdapter.java

public <T> T jolokia(Class<T> expectedReturnType, String podName, Object input) throws Exception {
    if (input instanceof J4pRequest == false) {
        throw new IllegalArgumentException("Input must be a J4pRequest instance!");
    }//from   w  w w  .j a v  a 2 s  . com

    Proxy proxy = getProxy();

    String url = proxy.url(podName, "https", 8778, "/jolokia/", null);
    log.info(String.format("Jolokia URL: %s", url));

    J4pRequest request = (J4pRequest) input;
    JSONObject jsonObject = ReflectionUtils.invoke(J4pRequest.class, "toJson", new Class[0], request,
            new Object[0], JSONObject.class);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    try (OutputStreamWriter out = new OutputStreamWriter(baos)) {
        jsonObject.writeJSONString(out);
        out.flush();
    }

    byte[] bytes = baos.toByteArray(); // copy
    baos.reset(); // re-use
    try (InputStream stream = proxy.post(url, "application/json", bytes)) {
        byte[] buffer = new byte[512];
        int numRead;
        while ((numRead = stream.read(buffer, 0, buffer.length)) >= 0) {
            baos.write(buffer, 0, numRead);
        }
    }
    String content = baos.toString();

    JSONParser parser = new JSONParser();
    JSONAware parseResult;
    try {
        parseResult = (JSONAware) parser.parse(content);
    } catch (ParseException e) {
        throw new IllegalArgumentException("Invalid Jolokia response: " + content);
    }
    if (parseResult instanceof JSONObject == false) {
        throw new IllegalStateException("Invalid JSON answer for a single request (expected a map but got a "
                + parseResult.getClass() + ")");
    }
    J4pResponse response = ReflectionUtils.invoke(J4pRequest.class, "createResponse",
            new Class[] { JSONObject.class }, request, new Object[] { parseResult }, J4pResponse.class);
    return expectedReturnType.cast(response.getValue());
}

---

From source file:org.perf4j.LogParserTest.java

public void testLogParserMain() throws Exception {
    PrintStream realOut = System.out;
    ByteArrayOutputStream fakeOut = new ByteArrayOutputStream();
    System.setOut(new PrintStream(fakeOut, true));
    try {/*from w w w.  j  a va  2s  .  co  m*/
        //usage
        realOut.println("-- Usage Test --");
        LogParser.runMain(new String[] { "--help" });
        realOut.println(fakeOut.toString());
        assertTrue(fakeOut.toString().indexOf("Usage") >= 0);
        fakeOut.reset();

        //log on std in, write to std out
        InputStream realIn = System.in;
        ByteArrayInputStream fakeIn = new ByteArrayInputStream(testLog.getBytes());
        System.setIn(fakeIn);
        try {
            realOut.println("-- Std in -> Std out Test --");
            LogParser.runMain(new String[0]);
            realOut.println(fakeOut.toString());
            assertTrue(fakeOut.toString().indexOf("tag") >= 0 && fakeOut.toString().indexOf("tag2") >= 0
                    && fakeOut.toString().indexOf("tag3") >= 0);
            fakeOut.reset();
        } finally {
            System.setIn(realIn);
        }

        //Log from a file
        FileUtils.writeStringToFile(new File("./target/logParserTest.log"), testLog);

        //log from file, write to std out
        realOut.println("-- File in -> Std out Test --");
        LogParser.runMain(new String[] { "./target/logParserTest.log" });
        realOut.println(fakeOut.toString());
        assertTrue(fakeOut.toString().indexOf("tag") >= 0 && fakeOut.toString().indexOf("tag2") >= 0
                && fakeOut.toString().indexOf("tag3") >= 0);
        fakeOut.reset();

        //CSV format test
        realOut.println("-- File in -> Std out Test with CSV --");
        LogParser.runMain(new String[] { "-f", "csv", "./target/logParserTest.log" });
        realOut.println(fakeOut.toString());
        assertTrue(fakeOut.toString().indexOf("\"tag\",") >= 0 && fakeOut.toString().indexOf("\"tag2\",") >= 0
                && fakeOut.toString().indexOf("\"tag3\",") >= 0);
        fakeOut.reset();

        //log from file, write to file
        realOut.println("-- File in -> File out Test --");
        LogParser.runMain(new String[] { "-o", "./target/statistics.out", "./target/logParserTest.log" });
        String statsOut = FileUtils.readFileToString(new File("./target/statistics.out"));
        realOut.println(statsOut);
        assertTrue(
                statsOut.indexOf("tag") >= 0 && statsOut.indexOf("tag2") >= 0 && statsOut.indexOf("tag3") >= 0);

        //log from file, write to file, different timeslice
        realOut.println("-- File in -> File out with different timeslice Test --");
        LogParser.runMain(new String[] { "-o", "./target/statistics.out", "--timeslice", "120000",
                "./target/logParserTest.log" });
        statsOut = FileUtils.readFileToString(new File("./target/statistics.out"));
        realOut.println(statsOut);
        assertTrue(
                statsOut.indexOf("tag") >= 0 && statsOut.indexOf("tag2") >= 0 && statsOut.indexOf("tag3") >= 0);

        //missing param test
        realOut.println("-- Missing param test --");
        assertEquals(1, LogParser.runMain(new String[] { "./target/logParserTest.log", "-o" }));

        //unknown arg test
        realOut.println("-- Unknown arg test --");
        assertEquals(1, LogParser.runMain(new String[] { "./target/logParserTest.log", "--foo" }));
        realOut.println(fakeOut);
        assertTrue(fakeOut.toString().indexOf("Unknown") >= 0);

        //graphing test
        realOut.println("-- File in -> File out with graphing --");
        LogParser.runMain(new String[] { "-o", "./target/statistics.out", "-g", "./target/perfGraphs.out",
                "./src/test/resources/org/perf4j/dummyLog.txt" });
        statsOut = FileUtils.readFileToString(new File("./target/statistics.out"));
        realOut.println(statsOut);
        String graphsOut = FileUtils.readFileToString(new File("./target/perfGraphs.out"));
        realOut.println(graphsOut);
        assertTrue(graphsOut.indexOf("chtt=TPS") > 0 && graphsOut.indexOf("chtt=Mean") > 0);
    } finally {
        System.setOut(realOut);
    }
}

---

From source file:net.jperf.LogParserTest.java

public void testLogParserMain() throws Exception {
    PrintStream realOut = System.out;
    ByteArrayOutputStream fakeOut = new ByteArrayOutputStream();
    System.setOut(new PrintStream(fakeOut, true));
    try {/*from   ww  w.j av a 2  s  . c  o  m*/
        //usage
        realOut.println("-- Usage Test --");
        LogParser.runMain(new String[] { "--help" });
        realOut.println(fakeOut.toString());
        assertTrue(fakeOut.toString().indexOf("Usage") >= 0);
        fakeOut.reset();

        //log on std in, write to std out
        InputStream realIn = System.in;
        ByteArrayInputStream fakeIn = new ByteArrayInputStream(testLog.getBytes());
        System.setIn(fakeIn);
        try {
            realOut.println("-- Std in -> Std out Test --");
            LogParser.runMain(new String[0]);
            realOut.println(fakeOut.toString());
            assertTrue(fakeOut.toString().indexOf("tag") >= 0 && fakeOut.toString().indexOf("tag2") >= 0
                    && fakeOut.toString().indexOf("tag3") >= 0);
            fakeOut.reset();
        } finally {
            System.setIn(realIn);
        }

        //Log from a file
        FileUtils.writeStringToFile(new File("./target/logParserTest.log"), testLog);

        //log from file, write to std out
        realOut.println("-- File in -> Std out Test --");
        LogParser.runMain(new String[] { "./target/logParserTest.log" });
        realOut.println(fakeOut.toString());
        assertTrue(fakeOut.toString().indexOf("tag") >= 0 && fakeOut.toString().indexOf("tag2") >= 0
                && fakeOut.toString().indexOf("tag3") >= 0);
        fakeOut.reset();

        //CSV format test
        realOut.println("-- File in -> Std out Test with CSV --");
        LogParser.runMain(new String[] { "-f", "csv", "./target/logParserTest.log" });
        realOut.println(fakeOut.toString());
        assertTrue(fakeOut.toString().indexOf("\"tag\",") >= 0 && fakeOut.toString().indexOf("\"tag2\",") >= 0
                && fakeOut.toString().indexOf("\"tag3\",") >= 0);
        fakeOut.reset();

        //log from file, write to file
        realOut.println("-- File in -> File out Test --");
        LogParser.runMain(new String[] { "-o", "./target/statistics.out", "./target/logParserTest.log" });
        String statsOut = FileUtils.readFileToString(new File("./target/statistics.out"));
        realOut.println(statsOut);
        assertTrue(
                statsOut.indexOf("tag") >= 0 && statsOut.indexOf("tag2") >= 0 && statsOut.indexOf("tag3") >= 0);

        //log from file, write to file, different timeslice
        realOut.println("-- File in -> File out with different timeslice Test --");
        LogParser.runMain(new String[] { "-o", "./target/statistics.out", "--timeslice", "120000",
                "./target/logParserTest.log" });
        statsOut = FileUtils.readFileToString(new File("./target/statistics.out"));
        realOut.println(statsOut);
        assertTrue(
                statsOut.indexOf("tag") >= 0 && statsOut.indexOf("tag2") >= 0 && statsOut.indexOf("tag3") >= 0);

        //missing param test
        realOut.println("-- Missing param test --");
        assertEquals(1, LogParser.runMain(new String[] { "./target/logParserTest.log", "-o" }));

        //unknown arg test
        realOut.println("-- Unknown arg test --");
        assertEquals(1, LogParser.runMain(new String[] { "./target/logParserTest.log", "--foo" }));
        realOut.println(fakeOut);
        assertTrue(fakeOut.toString().indexOf("Unknown") >= 0);

        //graphing test
        realOut.println("-- File in -> File out with graphing --");
        LogParser.runMain(new String[] { "-o", "./target/statistics.out", "-g", "./target/perfGraphs.out",
                "./src/test/resources/net/jperf/dummyLog.txt" });
        statsOut = FileUtils.readFileToString(new File("./target/statistics.out"));
        realOut.println(statsOut);
        String graphsOut = FileUtils.readFileToString(new File("./target/perfGraphs.out"));
        realOut.println(graphsOut);
        assertTrue(graphsOut.indexOf("chtt=TPS") > 0 && graphsOut.indexOf("chtt=Mean") > 0);
    } finally {
        System.setOut(realOut);
    }
}

---

From source file:org.dswarm.xsd2jsonschema.model.test.JSRootTest.java

@Test
public void testOverloadedRender() throws Exception {

    final ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    final StringWriter writer = new StringWriter();
    File tmpFile;/*from w  w  w .j  av  a2 s. c  o  m*/

    final String render = obj.render();
    doRenderTest(render);

    obj.render(BaseJSTest.om, outputStream);
    doRenderTest(outputStream);
    outputStream.reset();

    obj.render(BaseJSTest.om, outputStream, JsonEncoding.UTF8);
    doRenderTest(outputStream);
    outputStream.reset();

    obj.render(BaseJSTest.om, writer);
    doRenderTest(writer);
    outputStream.reset();

    tmpFile = File.createTempFile("dmp-test", "tmp");
    obj.render(BaseJSTest.om, tmpFile, JsonEncoding.UTF8);
    doRenderTest(BaseJSTest.om.readTree(tmpFile));
    tmpFile.deleteOnExit();

    final JsonFactory factory = BaseJSTest.om.getFactory();

    obj.render(factory, outputStream);
    doRenderTest(outputStream);
    outputStream.reset();

    obj.render(factory, outputStream, JsonEncoding.UTF8);
    doRenderTest(outputStream);
    outputStream.reset();

    obj.render(factory, writer);
    doRenderTest(writer);
    outputStream.reset();

    tmpFile = File.createTempFile("dmp-test", "tmp");
    obj.render(factory, tmpFile, JsonEncoding.UTF8);
    doRenderTest(BaseJSTest.om.readTree(tmpFile));
    tmpFile.deleteOnExit();

    final JsonGenerator generator = factory.createGenerator(outputStream);
    obj.render(generator);
    generator.flush();
    doRenderTest(outputStream);
}

---

From source file:org.apache.olingo.fit.utils.FSManager.java

public void putInMemory(final ResWrap<Entity> container, final String relativePath)
        throws IOException, ODataSerializerException {
    ByteArrayOutputStream content = new ByteArrayOutputStream();
    OutputStreamWriter writer = new OutputStreamWriter(content, Constants.ENCODING);

    new AtomSerializer(true).write(writer, container);
    writer.flush();//from   w w w . j  a  va  2  s.c  om

    putInMemory(new ByteArrayInputStream(content.toByteArray()), getAbsolutePath(relativePath, Accept.ATOM));
    content.reset();

    new JsonSerializer(true, ContentType.JSON_FULL_METADATA).write(writer, container);
    writer.flush();

    putInMemory(new ByteArrayInputStream(content.toByteArray()),
            getAbsolutePath(relativePath, Accept.JSON_FULLMETA));
}

---

From source file:eu.smartfp7.jcouchdb.SmartContinuousChangesDriver.java

@Override
public void run() {
    synchronized (this) {
        this.notifyAll();
    }//from   www  . j a  v  a2s .c o m

    log.info("ContinuousChangesDriver started.");

    Response response = null;

    options = db.getCommonChangesOptions(filter, since, options);
    options.put("feed", "continuous");

    InputStream ir = null;

    while (!db.getServer().isShutdown()) {
        log.debug("driver loop");
        try {
            log.info("Sending continuous change request. filter = {}, since = {}, options = {}",
                    new Object[] { filter, since, options });
            response = db.getServer().get("/" + db.getName() + "/_changes" + options.toQuery());

            ir = response.getInputStream();
            log.debug("input stream = {}", ir);

            ByteArrayOutputStream bos = new ByteArrayOutputStream();

            while (!db.getServer().isShutdown()) {
                int c = ir.read();
                if (c == -1) {
                    throw new IllegalStateException("Unexpected EOF");
                }

                if (c == '\n') {
                    convertRawData(bos.toByteArray());
                    bos.reset();
                } else {
                    bos.write(c);
                }
            }
        } catch (SocketException e) {
            log.debug("SocketException listening to continuous changes");
        } catch (Exception e) {
            log.info("Error listening to continuous changes", e);
        } finally {
            if (ir != null) {
                IOUtils.closeQuietly(ir);
                ir = null;
            }

            if (response != null) {
                response.destroy();
            }
        }
    }
}

---

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