Examples with PrintStream java.io.PrintStream used on opensource projects

Example 41 with PrintStream

use of java.io.PrintStream in project grpc-java by grpc.

the class Utils method saveHistogram.

/**
   * Save a {@link Histogram} to a file.
   */
public static void saveHistogram(Histogram histogram, String filename) throws IOException {
    File file;
    PrintStream log = null;
    try {
        file = new File(filename);
        if (file.exists() && !file.delete()) {
            System.err.println("Failed deleting previous histogram file: " + file.getAbsolutePath());
        }
        log = new PrintStream(new FileOutputStream(file), false);
        histogram.outputPercentileDistribution(log, 1.0);
    } finally {
        if (log != null) {
            log.close();
        }
    }
}

Example 42 with PrintStream

use of java.io.PrintStream in project SQLWindowing by hbutani.

the class WindowingHiveCliDriver method run.

public static int run(String[] args) throws Exception {
    OptionsProcessor oproc = new OptionsProcessor();
    if (!oproc.process_stage1(args)) {
        return 1;
    }
    // NOTE: It is critical to do this here so that log4j is reinitialized
    // before any of the other core hive classes are loaded
    boolean logInitFailed = false;
    String logInitDetailMessage;
    try {
        logInitDetailMessage = LogUtils.initHiveLog4j();
    } catch (LogInitializationException e) {
        logInitFailed = true;
        logInitDetailMessage = e.getMessage();
    }
    CliSessionState ss = new CliSessionState(new HiveConf(SessionState.class));
    ss.in = System.in;
    try {
        ss.out = new PrintStream(System.out, true, "UTF-8");
        ss.info = new PrintStream(System.err, true, "UTF-8");
        ss.err = new CachingPrintStream(System.err, true, "UTF-8");
    } catch (UnsupportedEncodingException e) {
        return 3;
    }
    if (!oproc.process_stage2(ss)) {
        return 2;
    }
    if (!ss.getIsSilent()) {
        if (logInitFailed) {
            System.err.println(logInitDetailMessage);
        } else {
            SessionState.getConsole().printInfo(logInitDetailMessage);
        }
    }
    // set all properties specified via command line
    HiveConf conf = ss.getConf();
    for (Map.Entry<Object, Object> item : ss.cmdProperties.entrySet()) {
        conf.set((String) item.getKey(), (String) item.getValue());
        ss.getOverriddenConfigurations().put((String) item.getKey(), (String) item.getValue());
    }
    SessionState.start(ss);
    // connect to Hive Server
    if (ss.getHost() != null) {
        ss.connect();
        if (ss.isRemoteMode()) {
            prompt = "[" + ss.getHost() + ':' + ss.getPort() + "] " + prompt;
            char[] spaces = new char[prompt.length()];
            Arrays.fill(spaces, ' ');
            prompt2 = new String(spaces);
        }
    }
    // CLI remote mode is a thin client: only load auxJars in local mode
    if (!ss.isRemoteMode() && !ShimLoader.getHadoopShims().usesJobShell()) {
        // hadoop-20 and above - we need to augment classpath using hiveconf
        // components
        // see also: code in ExecDriver.java
        ClassLoader loader = conf.getClassLoader();
        String auxJars = HiveConf.getVar(conf, HiveConf.ConfVars.HIVEAUXJARS);
        if (StringUtils.isNotBlank(auxJars)) {
            loader = Utilities.addToClassPath(loader, StringUtils.split(auxJars, ","));
        }
        conf.setClassLoader(loader);
        Thread.currentThread().setContextClassLoader(loader);
    }
    WindowingHiveCliDriver cli = new WindowingHiveCliDriver();
    cli.setHiveVariables(oproc.getHiveVariables());
    // use the specified database if specified
    cli.processSelectDatabase(ss);
    // Execute -i init files (always in silent mode)
    cli.processInitFiles(ss);
    cli.setupWindowing();
    if (ss.execString != null) {
        return cli.processLine(ss.execString);
    }
    try {
        if (ss.fileName != null) {
            return cli.processFile(ss.fileName);
        }
    } catch (FileNotFoundException e) {
        System.err.println("Could not open input file for reading. (" + e.getMessage() + ")");
        return 3;
    }
    ConsoleReader reader = new ConsoleReader();
    reader.setBellEnabled(false);
    // true)));
    for (Completor completor : getCommandCompletor()) {
        reader.addCompletor(completor);
    }
    String line;
    final String HISTORYFILE = ".hivehistory";
    String historyDirectory = System.getProperty("user.home");
    try {
        if ((new File(historyDirectory)).exists()) {
            String historyFile = historyDirectory + File.separator + HISTORYFILE;
            reader.setHistory(new History(new File(historyFile)));
        } else {
            System.err.println("WARNING: Directory for Hive history file: " + historyDirectory + " does not exist.   History will not be available during this session.");
        }
    } catch (Exception e) {
        System.err.println("WARNING: Encountered an error while trying to initialize Hive's " + "history file.  History will not be available during this session.");
        System.err.println(e.getMessage());
    }
    int ret = 0;
    String prefix = "";
    String curDB = getFormattedDb(conf, ss);
    String curPrompt = prompt + curDB;
    String dbSpaces = spacesForString(curDB);
    while ((line = reader.readLine(curPrompt + "> ")) != null) {
        if (!prefix.equals("")) {
            prefix += '\n';
        }
        if (line.trim().endsWith(";") && !line.trim().endsWith("\\;")) {
            line = prefix + line;
            ret = cli.processLine(line, true);
            prefix = "";
            curDB = getFormattedDb(conf, ss);
            curPrompt = prompt + curDB;
            dbSpaces = dbSpaces.length() == curDB.length() ? dbSpaces : spacesForString(curDB);
        } else {
            prefix = prefix + line;
            curPrompt = prompt2 + dbSpaces;
            continue;
        }
    }
    ss.close();
    return ret;
}

Example 43 with PrintStream

use of java.io.PrintStream in project invokebinder by headius.

the class SmartBinderTest method testPrintSignature.

@Test
public void testPrintSignature() throws Throwable {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    PrintStream ps = new PrintStream(baos);
    MethodHandle handle = SmartBinder.from(Subjects.StringIntegerIntegerInteger).foldStatic("x", Subjects.class, "foldStringIntegerIntegerInteger").drop("a").printSignature(ps).drop("b1").drop("b2").drop("b3").printSignature(ps).invokeStatic(MethodHandles.lookup(), Subjects.class, "upperCase").handle();
    String result = baos.toString();
    assertEquals("(String x, Integer b1, Integer b2, Integer b3)String\n" + "(String x)String\n", result);
}

Example 44 with PrintStream

use of java.io.PrintStream in project j2objc by google.

the class MemoryHandlerTest method setUp.

/*
	 * @see TestCase#setUp()
	 */
protected void setUp() throws Exception {
    super.setUp();
    manager.reset();
    initProps();
    manager.readConfiguration(EnvironmentHelper.PropertiesToInputStream(props));
    handler = new MemoryHandler();
    errSubstituteStream = new NullOutputStream();
    System.setErr(new PrintStream(errSubstituteStream));
}

Example 45 with PrintStream

use of java.io.PrintStream in project j2objc by google.

the class StreamHandlerTest method setUp.

/*
	 * @see TestCase#setUp()
	 */
protected void setUp() throws Exception {
    super.setUp();
    errSubstituteStream = new NullOutputStream();
    System.setErr(new PrintStream(errSubstituteStream));
}