Java PipedInputStream类代码示例

import java.io.PipedInputStream; //导入依赖的package包/类
@Test
public void testTestCommand() throws JSchException, IOException {
    JSch jsch = new JSch();
    Session session = jsch.getSession("admin", "localhost", properties.getShell().getPort());
    jsch.addIdentity("src/test/resources/id_rsa");
    Properties config = new Properties();
    config.put("StrictHostKeyChecking", "no");
    session.setConfig(config);
    session.connect();
    ChannelShell channel = (ChannelShell) session.openChannel("shell");
    PipedInputStream pis = new PipedInputStream();
    PipedOutputStream pos = new PipedOutputStream();
    channel.setInputStream(new PipedInputStream(pos));
    channel.setOutputStream(new PipedOutputStream(pis));
    channel.connect();
    pos.write("test run bob\r".getBytes(StandardCharsets.UTF_8));
    pos.flush();
    verifyResponse(pis, "test run bob");
    pis.close();
    pos.close();
    channel.disconnect();
    session.disconnect();
}
 

import java.io.PipedInputStream; //导入依赖的package包/类
/**
 * Open an SSH shell session and execute the specified script, using the provided stream for output.
 * 
 * <pre><code>    shell("ssh://user:[email protected]/work/dir/path", "ls", System.out);</code></pre>
 * 
 * @param connectUri SSH connection URI
 * @param script shell command string
 * @param out output stream object
 */
public static void shell(String connectUri, String script, OutputStream out) {
    try (SessionHolder<ChannelShell> session = new SessionHolder<>(ChannelType.SHELL, URI.create(connectUri));
            PipedOutputStream pipe = new PipedOutputStream();
            PipedInputStream in = new PipedInputStream(pipe);
            PrintWriter pw = new PrintWriter(pipe)) {

        if (session.getWorkDir() != null) {
            pw.println("cd " + session.getWorkDir());
        }
        
        pw.println(script);
        pw.println("exit");
        pw.flush();

        shell(session, in, out);
    } catch (IOException e) {
        throw new RemoteInputStreamInstantiationException(e);
    }
}
 

import java.io.PipedInputStream; //导入依赖的package包/类
@Test
public void buildACommand() throws IOException {
  PipedInputStream pis = new PipedInputStream();
  BufferedInputStream bis = new BufferedInputStream(pis);
  PipedOutputStream pos = new PipedOutputStream(pis);
  RedisOutputStream ros = new RedisOutputStream(pos);

  Protocol.sendCommand(ros, Protocol.Command.GET, "SOMEKEY".getBytes(Protocol.CHARSET));
  ros.flush();
  pos.close();
  String expectedCommand = "*2\r\n$3\r\nGET\r\n$7\r\nSOMEKEY\r\n";

  int b;
  StringBuilder sb = new StringBuilder();
  while ((b = bis.read()) != -1) {
    sb.append((char) b);
  }

  assertEquals(expectedCommand, sb.toString());
}
 

import java.io.PipedInputStream; //导入依赖的package包/类
public InputStream getInputStream() throws IOException {
  int max_input_buffer_size = 32*1024;
  try {
    max_input_buffer_size =
      Integer.parseInt(getSession().getConfig("max_input_buffer_size"));
  }
  catch(Exception e){}
  PipedInputStream in =
    new MyPipedInputStream(
                           32*1024,  // this value should be customizable.
                           max_input_buffer_size
                           );
  boolean resizable = 32*1024<max_input_buffer_size;
  io.setOutputStream(new PassiveOutputStream(in, resizable), false);
  return in;
}
 

import java.io.PipedInputStream; //导入依赖的package包/类
public InputStream getExtInputStream() throws IOException {
  int max_input_buffer_size = 32*1024;
  try {
    max_input_buffer_size =
      Integer.parseInt(getSession().getConfig("max_input_buffer_size"));
  }
  catch(Exception e){}
  PipedInputStream in =
    new MyPipedInputStream(
                           32*1024,  // this value should be customizable.
                           max_input_buffer_size
                           );
  boolean resizable = 32*1024<max_input_buffer_size;
  io.setExtOutputStream(new PassiveOutputStream(in, resizable), false);
  return in;
}
 

import java.io.PipedInputStream; //导入依赖的package包/类
@Test
public void testEntityMarshallingWithGZIP() throws Exception {
  for (int numDataPoints = 1; numDataPoints <= 10; numDataPoints++) {
    ArrayList<DataPoint> dataPoints = createDataPoints(numDataPoints);
    DatapointsHttpEntity entity = new DatapointsHttpEntity(dataPoints, globalTags, true);

    PipedInputStream pis = new PipedInputStream();

    entity.writeTo(new PipedOutputStream(pis));

    String jsonText = streamToString(pis);
    DataPoint[] unmarshalledDPs = Util.jsonToDataPoints(jsonText);

    assertEquals(numDataPoints, unmarshalledDPs.length);
    for (int i = 0; i < numDataPoints; i++) {
      assertEquals(getExpectedDataPoint(dataPoints.get(i), globalTags), unmarshalledDPs[i]);
    }
  }
}
 

import java.io.PipedInputStream; //导入依赖的package包/类
@Test
public void getHelloFromServerTest() throws IOException{
	//preparing remote connection Socket First parameter for ArticlePuller
	//and pipeline fot testing
	
	PipedInputStream inForOut = new PipedInputStream();
	PipedOutputStream outForIn = new PipedOutputStream();
	BufferedReader rIn = new BufferedReader(new InputStreamReader(inForOut, "UTF-8"));
	PrintWriter rOut = new PrintWriter(new OutputStreamWriter(outForIn, "UTF-8"));

	when(rSocket.getOutputStream()).thenReturn(new PipedOutputStream(inForOut));
	when(rSocket.getInputStream()).thenReturn(new PipedInputStream(outForIn));
	rOut.println("200 hello");
	rOut.flush();
	Socket socket = FeedManager.getHelloFromServer(rSocket, false, "testhost", Charset.forName("UTF-8"));
	assertTrue (socket != null);
	
	
}
 

import java.io.PipedInputStream; //导入依赖的package包/类
protected void verifyJobPriority(String jobId, String priority,
    Configuration conf, CLI jc) throws Exception {
  PipedInputStream pis = new PipedInputStream();
  PipedOutputStream pos = new PipedOutputStream(pis);
  int exitCode = runTool(conf, jc, new String[] { "-list", "all" }, pos);
  assertEquals("Exit code", 0, exitCode);
  BufferedReader br = new BufferedReader(new InputStreamReader(pis));
  String line;
  while ((line = br.readLine()) != null) {
    LOG.info("line = " + line);
    if (!line.contains(jobId)) {
      continue;
    }
    assertTrue(line.contains(priority));
    break;
  }
  pis.close();
}
 

import java.io.PipedInputStream; //导入依赖的package包/类
private static boolean checkPrintAllValues(JMXGet jmx) throws Exception {
  int size = 0; 
  byte[] bytes = null;
  String pattern = "List of all the available keys:";
  PipedOutputStream pipeOut = new PipedOutputStream();
  PipedInputStream pipeIn = new PipedInputStream(pipeOut);
  System.setErr(new PrintStream(pipeOut));
  jmx.printAllValues();
  if ((size = pipeIn.available()) != 0) {
    bytes = new byte[size];
    pipeIn.read(bytes, 0, bytes.length);            
  }
  pipeOut.close();
  pipeIn.close();
  return bytes != null ? new String(bytes).contains(pattern) : false;
}
 

import java.io.PipedInputStream; //导入依赖的package包/类
private static void testJarList(String jarFile) throws IOException {
    List<String> argList = new ArrayList<String>();
    argList.add("-tvf");
    argList.add(jarFile);
    argList.add(JARBACKSLASH + File.separatorChar + DIR + File.separatorChar + FILENAME);

    String jarArgs[] = new String[argList.size()];
    jarArgs = argList.toArray(jarArgs);

    PipedOutputStream pipedOutput = new PipedOutputStream();
    PipedInputStream pipedInput = new PipedInputStream(pipedOutput);
    PrintStream out = new PrintStream(pipedOutput);

    Main jarTool = new Main(out, System.err, "jar");
    if (!jarTool.run(jarArgs)) {
        fail("Could not list jar file.");
    }

    out.flush();
    check(pipedInput.available() > 0);
}
 

import java.io.PipedInputStream; //导入依赖的package包/类
private static void testJarExtract(String jarFile) throws IOException {
    List<String> argList = new ArrayList<String>();
    argList.add("-xvf");
    argList.add(jarFile);
    argList.add(JARBACKSLASH + File.separatorChar + DIR + File.separatorChar + FILENAME);

    String jarArgs[] = new String[argList.size()];
    jarArgs = argList.toArray(jarArgs);

    PipedOutputStream pipedOutput = new PipedOutputStream();
    PipedInputStream pipedInput = new PipedInputStream(pipedOutput);
    PrintStream out = new PrintStream(pipedOutput);

    Main jarTool = new Main(out, System.err, "jar");
    if (!jarTool.run(jarArgs)) {
        fail("Could not list jar file.");
    }

    out.flush();
    check(pipedInput.available() > 0);
}
 

import java.io.PipedInputStream; //导入依赖的package包/类
public static void main(String[] args) {
    /**
     * 流程
     * 1 建立输入输出流
     * 2 绑定输入输出流
     * 3 向缓冲区写数据
     * 4 读取缓冲区数据
     */
    PipedOutputStream out = new PipedOutputStream();
    PipedInputStream in = new PipedInputStream();
    Producer producer = new Producer(out);
    Consumer consumer = new Consumer(in);

    try {
        out.connect(in);
        producer.start();
        consumer.start();
    } catch (IOException e) {
        e.printStackTrace();
    }
}
 

import java.io.PipedInputStream; //导入依赖的package包/类
private static void testJarList(String jarFile) throws IOException {
    List<String> argList = new ArrayList<String>();
    argList.add("-tvf");
    argList.add(jarFile);
    argList.add(JARBACKSLASH + File.separatorChar + DIR + File.separatorChar + FILENAME);

    String jarArgs[] = new String[argList.size()];
    jarArgs = argList.toArray(jarArgs);

    PipedOutputStream pipedOutput = new PipedOutputStream();
    PipedInputStream pipedInput = new PipedInputStream(pipedOutput);
    PrintStream out = new PrintStream(pipedOutput);

    int rc = JAR_TOOL.run(out, System.err, jarArgs);
    if (rc != 0) {
        fail("Could not list jar file.");
    }

    out.flush();
    check(pipedInput.available() > 0);
}
 

import java.io.PipedInputStream; //导入依赖的package包/类
private static void testJarExtract(String jarFile) throws IOException {
    List<String> argList = new ArrayList<String>();
    argList.add("-xvf");
    argList.add(jarFile);
    argList.add(JARBACKSLASH + File.separatorChar + DIR + File.separatorChar + FILENAME);

    String jarArgs[] = new String[argList.size()];
    jarArgs = argList.toArray(jarArgs);

    PipedOutputStream pipedOutput = new PipedOutputStream();
    PipedInputStream pipedInput = new PipedInputStream(pipedOutput);
    PrintStream out = new PrintStream(pipedOutput);

    int rc = JAR_TOOL.run(out, System.err, jarArgs);
    if (rc != 0) {
        fail("Could not list jar file.");
    }

    out.flush();
    check(pipedInput.available() > 0);
}
 

import java.io.PipedInputStream; //导入依赖的package包/类
protected void sshCall(String username, String password, SshExecutor executor, String channelType) {
    try {
        JSch jsch = new JSch();
        Session session = jsch.getSession(username, props.getShell().getHost(), props.getShell().getPort());
        session.setPassword(password);
        Properties config = new Properties();
        config.put("StrictHostKeyChecking", "no");
        session.setConfig(config);
        session.connect();
        Channel channel = session.openChannel(channelType);
        PipedInputStream pis = new PipedInputStream();
        PipedOutputStream pos = new PipedOutputStream();
        channel.setInputStream(new PipedInputStream(pos));
        channel.setOutputStream(new PipedOutputStream(pis));
        channel.connect();
        try {
            executor.execute(pis, pos);
        } finally {
            pis.close();
            pos.close();
            channel.disconnect();
            session.disconnect();
        }
    } catch(JSchException | IOException ex) {
        fail(ex.toString());
    }
}