Example usage for java.io PipedInputStream PipedInputStream

Introduction

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

Prototype

public PipedInputStream(int pipeSize) 

Source Link

Document

Creates a PipedInputStream so that it is not yet #connect(java.io.PipedOutputStream) connected and uses the specified pipe size for the pipe's buffer.

Usage

From source file:org.pentaho.webpackage.deployer.archive.impl.WebPackageURLConnection.java

@Override
public InputStream getInputStream() throws IOException {
    try {/*  w w  w.  j a v a 2 s.  c  o m*/
        final PipedOutputStream pipedOutputStream = new PipedOutputStream();
        PipedInputStream pipedInputStream = new PipedInputStream(pipedOutputStream);

        // making this here allows to fail with invalid URLs
        final java.net.URLConnection urlConnection = this.url.openConnection();
        urlConnection.connect();
        final InputStream originalInputStream = urlConnection.getInputStream();

        this.transform_thread = EXECUTOR
                .submit(new WebPackageTransformer(this.url, originalInputStream, pipedOutputStream));

        return pipedInputStream;
    } catch (Exception e) {
        this.logger.error(getURL().toString() + ": Error opening url");

        throw new IOException("Error opening url", e);
    }
}

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From source file:com.sonar.scanner.api.it.tools.CommandExecutor.java

private ExecuteStreamHandler createStreamHandler() throws IOException {
    logs = new ByteArrayOutputStream();
    PipedOutputStream outPiped = new PipedOutputStream();
    InputStream inPiped = new PipedInputStream(outPiped);
    in = outPiped;// ww  w .  j  av  a 2s  .co m

    TeeOutputStream teeOut = new TeeOutputStream(logs, System.out);
    TeeOutputStream teeErr = new TeeOutputStream(logs, System.err);

    return new PumpStreamHandler(teeOut, teeErr, inPiped);
}

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From source file:org.guvnor.ala.build.maven.executor.MavenCliOutputTest.java

@Test
public void buildAppAndWaitForMavenOutputTest() throws IOException {
    final GitHub gitHub = new GitHub();
    gitHub.getRepository("salaboy/drools-workshop", new HashMap<String, String>() {
        {//w w  w . j av  a 2  s . c o  m
            put("out-dir", tempPath.getAbsolutePath());
        }
    });

    final Optional<Source> _source = new GitConfigExecutor(new InMemorySourceRegistry())
            .apply(new GitConfigImpl(tempPath.getAbsolutePath(), "master",
                    "https://github.com/salaboy/drools-workshop", "drools-workshop", "true"));

    assertTrue(_source.isPresent());
    final Source source = _source.get();

    boolean buildProcessReady = false;
    Throwable error = null;
    PipedOutputStream baosOut = new PipedOutputStream();
    PipedOutputStream baosErr = new PipedOutputStream();
    final PrintStream out = new PrintStream(baosOut, true);
    final PrintStream err = new PrintStream(baosErr, true);

    //Build the project in a different thread
    new Thread(() -> {
        buildMavenProject(source, out, err);
    }).start();

    // Use the PipeOutputStream to read the execution output and validate that the application was built. 
    StringBuilder sb = new StringBuilder();
    BufferedReader bufferedReader;
    bufferedReader = new BufferedReader(new InputStreamReader(new PipedInputStream(baosOut)));
    String line;

    while (!(buildProcessReady || error != null)) {

        if ((line = bufferedReader.readLine()) != null) {
            sb.append(line).append("\n");
            if (line.contains("Building war:")) {
                buildProcessReady = true;
                out.close();
                err.close();
                baosOut.close();
                baosErr.close();

            }
        }

    }

    assertTrue(sb.toString().contains("Building war:"));
    assertTrue(buildProcessReady);
    assertTrue(error == null);

}

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From source file:it.sonarlint.cli.tools.CommandExecutor.java

private ExecuteStreamHandler createStreamHandler() throws IOException {
    out = new ByteArrayOutputStream();
    err = new ByteArrayOutputStream();
    PipedOutputStream outPiped = new PipedOutputStream();
    InputStream inPiped = new PipedInputStream(outPiped);
    in = outPiped;/*from   ww  w . java 2s .c o  m*/

    TeeOutputStream teeOut = new TeeOutputStream(out, System.out);
    TeeOutputStream teeErr = new TeeOutputStream(err, System.err);

    return new PumpStreamHandler(teeOut, teeErr, inPiped);
}

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From source file:vlove.virt.VirtBuilder.java

/**
 * Returns the exit value of the process.
 * /*from   w  w  w. j  av a 2s  .  co  m*/
 * @param out
 * @param err
 * @return
 * @throws VirtException
 */
public int createVirtualMachine(NewVmWizardModel newVm, StreamConsumer out, StreamConsumer err)
        throws VirtException {
    List<String> command = createVirtMachineCommand(newVm);
    if (command == null || command.size() < 1) {
        throw new VirtException("Command needs to be provided.");
    }

    try {
        Commandline cs = new Commandline();
        cs.setExecutable(command.get(0));
        if (command.size() > 1) {
            cs.addArguments(command.subList(1, command.size()).toArray(new String[] {}));
        }
        PipedOutputStream pOut = new PipedOutputStream();
        PipedInputStream pIs = new PipedInputStream(pOut);

        List<ConsumerListener> listeners = new ArrayList<>();
        listeners.add(new ConsumerListener(pOut, Pattern.compile("\\[sudo\\] password for \\w+:"), "password"));

        NestedStreamConsumer nOut = new NestedStreamConsumer(listeners, out);
        return CommandLineUtils.executeCommandLine(cs, pIs, nOut, err);
    } catch (CommandLineException ce) {
        throw new VirtException("Could not execute command.", ce);
    } catch (IOException ie) {
        throw new VirtException("Could not execute command.", ie);
    }
}

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From source file:org.opennms.systemreport.SystemReportResourceLocator.java

@Override
public String slurpOutput(final String commandString, final boolean ignoreExitCode) {
    final CommandLine command = CommandLine.parse(commandString);
    LOG.debug("running: {}", commandString);

    final Map<String, String> environment = new HashMap<String, String>(System.getenv());
    environment.put("COLUMNS", "2000");
    DataInputStream input = null;
    PipedInputStream pis = null;/*from   w  w  w .  j a v a 2  s  .c o m*/
    OutputSuckingParser parser = null;
    String outputText = null;
    final DefaultExecutor executor = new DefaultExecutor();

    final PipedOutputStream output = new PipedOutputStream();
    final PumpStreamHandler streamHandler = new PumpStreamHandler(output, output);
    executor.setWatchdog(new ExecuteWatchdog(m_maxProcessWait));
    executor.setStreamHandler(streamHandler);
    if (ignoreExitCode) {
        executor.setExitValues(null);
    }

    try {
        LOG.trace("executing '{}'", commandString);
        pis = new PipedInputStream(output);
        input = new DataInputStream(pis);
        parser = new OutputSuckingParser(input);
        parser.start();
        final int exitValue = executor.execute(command, environment);
        IOUtils.closeQuietly(output);
        parser.join(m_maxProcessWait);
        if (!ignoreExitCode && exitValue != 0) {
            LOG.debug("error running '{}': exit value was {}", commandString, exitValue);
        } else {
            outputText = parser.getOutput();
        }
        LOG.trace("finished '{}'", commandString);
    } catch (final Exception e) {
        LOG.debug("Failed to run '{}'", commandString, e);
    } finally {
        IOUtils.closeQuietly(output);
        IOUtils.closeQuietly(input);
        IOUtils.closeQuietly(pis);
    }

    return outputText;
}

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From source file:org.jclouds.logging.internal.Wire.java

public InputStream tapAsynch(final String header, InputStream instream) {
    PipedOutputStream out = new PipedOutputStream();
    InputStream toReturn = new TeeInputStream(instream, out, true);
    final InputStream line;
    try {//from  w w w .  ja  va2s  . com
        line = new PipedInputStream(out);
        exec.submit(new Runnable() {
            public void run() {
                try {
                    wire(header, line);
                } finally {
                    IOUtils.closeQuietly(line);
                }
            }
        });
    } catch (IOException e) {
        logger.error(e, "Error tapping line");
    }
    return toReturn;
}

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From source file:org.rhq.enterprise.server.sync.ExportingInputStream.java

/**
 * Constructs a new exporting input stream with the default buffer size of 64KB.
 * //from   w  w  w. ja  v  a 2s .c  o  m
 * @param synchronizers the synchronizers to invoke when producing the export file
 * @param messagesPerExporter a reference to a map of messages that the exporters will use to produce additional info about the export
 * @param size the size in bytes of the intermediate buffer
 * @param zip whether to zip the export data
 * @throws IOException on failure
 */
public ExportingInputStream(Set<Synchronizer<?, ?>> synchronizers,
        Map<String, ExporterMessages> messagesPerExporter, int size, boolean zip) throws IOException {
    this.synchronizers = synchronizers;
    this.messagesPerExporter = messagesPerExporter;
    inputStream = new PipedInputStream(size);
    exportOutput = new PipedOutputStream(inputStream);
    zipOutput = zip;

    try {
        JAXBContext context = JAXBContext.newInstance(DefaultImportConfigurationDescriptor.class);

        configurationMarshaller = context.createMarshaller();
        configurationMarshaller.setProperty(Marshaller.JAXB_FRAGMENT, true);
        configurationMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
        configurationMarshaller.setProperty(Marshaller.JAXB_ENCODING, "UTF-8");

    } catch (JAXBException e) {
        throw new IOException(e);
    }
}

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From source file:net.i2cat.netconf.transport.VirtualTransport.java

public void connect(SessionContext sessionContext) throws TransportException {
    // let the transportId instance be GC'ed after connect();
    // this.transportId = transportId;
    log.info("Virtual transport");

    this.sessionContext = sessionContext;

    // TODO CHECK IF IT WORKS
    user = sessionContext.getUser();//from   w  ww . jav  a2 s  .c o  m
    password = sessionContext.getPass();

    host = sessionContext.getHost();
    port = sessionContext.getPort();
    if (port < 0)
        port = 22;

    subsystem = sessionContext.getSubsystem();

    log.debug("user: " + user);
    log.debug("pass: " + (password != null ? "yes" : "no"));
    log.debug("hostname: " + host + ":" + port);
    log.debug("subsystem: " + subsystem);

    simHelper = new DummySimulatorHelper();

    // Check the type of responses
    simHelper.setResponseError(subsystem.equals("errorServer"));

    // this will fake the two endpoints of a tcp connection
    try {
        outStream = new PipedOutputStream();
        inStream = new PipedInputStream(outStream);

    } catch (IOException e) {
        throw new TransportException(e.getMessage());
    }

    closed = false;

    // notify handlers
    for (TransportListener handler : listeners)
        handler.transportOpened();

    startParsing();
}

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From source file:org.pentaho.osgi.platform.webjars.WebjarsURLConnection.java

@Override
public InputStream getInputStream() throws IOException {
    try {/*from  w w  w  . j  av a  2s. com*/
        final PipedOutputStream pipedOutputStream = new PipedOutputStream();
        PipedInputStream pipedInputStream = new PipedInputStream(pipedOutputStream);

        // making this here allows to fail with invalid URLs
        final URLConnection urlConnection = url.openConnection();
        urlConnection.connect();
        final InputStream originalInputStream = urlConnection.getInputStream();

        transform_thread = EXECUTOR.submit(
                new WebjarsTransformer(url, originalInputStream, pipedOutputStream, this.minificationEnabled));

        return pipedInputStream;
    } catch (Exception e) {
        logger.error(getURL().toString() + ": Error opening url");

        throw new IOException("Error opening url", e);
    }
}

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