Example usage for java.io DataInputStream close

Introduction

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

Prototype

public void close() throws IOException 

Source Link

Document

Closes this input stream and releases any system resources associated with the stream.

Usage

From source file:org.apache.hadoop.fs.TestDFSIO.java

private static void analyzeResult(FileSystem fs, int testType, long execTime, String resFileName)
        throws IOException {
    Path reduceFile;//from w ww . jav a2  s.  c om
    if (testType == TEST_TYPE_WRITE)
        reduceFile = new Path(WRITE_DIR, "part-00000");
    else
        reduceFile = new Path(READ_DIR, "part-00000");
    long tasks = 0;
    long size = 0;
    long time = 0;
    float rate = 0;
    float sqrate = 0;
    DataInputStream in = null;
    BufferedReader lines = null;
    try {
        in = new DataInputStream(fs.open(reduceFile));
        lines = new BufferedReader(new InputStreamReader(in));
        String line;
        while ((line = lines.readLine()) != null) {
            StringTokenizer tokens = new StringTokenizer(line, " \t\n\r\f%");
            String attr = tokens.nextToken();
            if (attr.endsWith(":tasks"))
                tasks = Long.parseLong(tokens.nextToken());
            else if (attr.endsWith(":size"))
                size = Long.parseLong(tokens.nextToken());
            else if (attr.endsWith(":time"))
                time = Long.parseLong(tokens.nextToken());
            else if (attr.endsWith(":rate"))
                rate = Float.parseFloat(tokens.nextToken());
            else if (attr.endsWith(":sqrate"))
                sqrate = Float.parseFloat(tokens.nextToken());
        }
    } finally {
        if (in != null)
            in.close();
        if (lines != null)
            lines.close();
    }

    double med = rate / 1000 / tasks;
    double stdDev = Math.sqrt(Math.abs(sqrate / 1000 / tasks - med * med));
    String resultLines[] = { "----- TestDFSIO ----- : "
            + ((testType == TEST_TYPE_WRITE) ? "write" : (testType == TEST_TYPE_READ) ? "read" : "unknown"),
            "           Date & time: " + new Date(System.currentTimeMillis()),
            "       Number of files: " + tasks, "Total MBytes processed: " + size / MEGA,
            "     Throughput mb/sec: " + size * 1000.0 / (time * MEGA), "Average IO rate mb/sec: " + med,
            " IO rate std deviation: " + stdDev, "    Test exec time sec: " + (float) execTime / 1000, "" };

    PrintStream res = null;
    try {
        res = new PrintStream(new FileOutputStream(new File(resFileName), true));
        for (int i = 0; i < resultLines.length; i++) {
            LOG.info(resultLines[i]);
            res.println(resultLines[i]);
        }
    } finally {
        if (res != null)
            res.close();
    }
}

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From source file:com.cloudera.recordbreaker.analyzer.UnknownTextSchemaDescriptor.java

void computeSchema() throws IOException {
    this.randId = new Random().nextInt();
    LearnStructure ls = new LearnStructure();
    FileSystem fs = FSAnalyzer.getInstance().getFS();
    FileSystem localFS = FileSystem.getLocal(new Configuration());
    Path inputPath = dd.getFilename();

    File workingParserFile = File.createTempFile("textdesc", "typetree", null);
    File workingSchemaFile = File.createTempFile("textdesc", "schema", null);

    ls.inferRecordFormat(fs, inputPath, localFS, new Path(workingSchemaFile.getCanonicalPath()),
            new Path(workingParserFile.getCanonicalPath()), null, null, false, MAX_LINES);

    this.schema = Schema.parse(workingSchemaFile);
    DataInputStream in = new DataInputStream(localFS.open(new Path(workingParserFile.getCanonicalPath())));
    try {//w w  w . j av  a  2  s  . c om
        this.typeTree = InferredType.readType(in);
    } catch (IOException iex) {
        iex.printStackTrace();
        throw iex;
    } finally {
        in.close();
    }
    //System.err.println("Recovered unknowntext schema: " + schema);
}

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From source file:com.android.hierarchyviewerlib.device.DeviceBridge.java

public static PsdFile captureLayers(Window window) {
    DeviceConnection connection = null;/* www .j a va2 s  .c  o  m*/
    DataInputStream in = null;

    try {
        connection = new DeviceConnection(window.getDevice());

        connection.sendCommand("CAPTURE_LAYERS " + window.encode()); //$NON-NLS-1$

        in = new DataInputStream(new BufferedInputStream(connection.getSocket().getInputStream()));

        int width = in.readInt();
        int height = in.readInt();

        PsdFile psd = new PsdFile(width, height);

        while (readLayer(in, psd)) {
        }

        return psd;
    } catch (Exception e) {
        Log.e(TAG, "Unable to capture layers for window " + window.getTitle() + " on device "
                + window.getDevice());
    } finally {
        if (in != null) {
            try {
                in.close();
            } catch (Exception ex) {
            }
        }
        connection.close();
    }

    return null;
}

---

From source file:cloudMe.CloudMeAPI.java

private String getResponse(HttpResponse response) {
    try {/*from   w w w.j a  v a  2 s.c om*/
        DataInputStream stream = new DataInputStream(response.getEntity().getContent());
        StringBuffer buf = new StringBuffer();
        String tmp;
        while ((tmp = stream.readLine()) != null) {
            buf.append(tmp);
        }
        stream.close();
        return buf.toString();
    } catch (IOException e) {
        return "IOException: " + e.getMessage();
    }
}

---

From source file:org.apache.hadoop.io.crypto.tool.CryptoApiTool.java

public void apiEncryption() {
    try {/*from  w  ww.  j a  v a  2s  .  c  o m*/
        Key key = initKey(strHexKey);

        CryptoContext cryptoContext = new CryptoContext();
        cryptoContext.setKey(key);

        CryptoCodec cryptoCodec = (CryptoCodec) new AESCodec();
        cryptoCodec.setCryptoContext(cryptoContext);

        Path inputFile = new Path(strInput);
        Path outputFile = new Path(strOutput);
        Configuration conf = new Configuration();
        DataInputStream input = inputFile.getFileSystem(conf).open(inputFile);
        DataOutputStream outputStream = outputFile.getFileSystem(conf).create(outputFile);
        CompressionOutputStream output = cryptoCodec.createOutputStream(outputStream);
        writeStream(input, output);
        input.close();
        output.close();

    } catch (Exception e) {
        LOG.error("Encryption Fail:", e);
        throw new RuntimeException("Encryption Fail.");
    }
}

---

From source file:com.pdfhow.diff.UploadServlet.java

/**
 * Handles the HTTP <code>GET</code> method.
 *
 * @param request/*from   ww  w .  j  ava2 s.  c  o m*/
 *            servlet request
 * @param response
 *            servlet response
 * @throws ServletException
 *             if a servlet-specific error occurs
 * @throws IOException
 *             if an I/O error occurs
 */
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    if (request.getParameter("getfile") != null && !request.getParameter("getfile").isEmpty()) {
        File file = new File(
                request.getServletContext().getRealPath("/") + "imgs/" + request.getParameter("getfile"));
        if (file.exists()) {
            int bytes = 0;
            ServletOutputStream op = response.getOutputStream();

            response.setContentType(getMimeType(file));
            response.setContentLength((int) file.length());
            response.setHeader("Content-Disposition", "inline; filename=\"" + file.getName() + "\"");

            byte[] bbuf = new byte[1024];
            DataInputStream in = new DataInputStream(new FileInputStream(file));

            while ((in != null) && ((bytes = in.read(bbuf)) != -1)) {
                op.write(bbuf, 0, bytes);
            }

            in.close();
            op.flush();
            op.close();
        }
    } else if (request.getParameter("delfile") != null && !request.getParameter("delfile").isEmpty()) {
        File file = new File(
                request.getServletContext().getRealPath("/") + "imgs/" + request.getParameter("delfile"));
        if (file.exists()) {
            file.delete(); // TODO:check and report success
        }
    } else if (request.getParameter("getthumb") != null && !request.getParameter("getthumb").isEmpty()) {
        File file = new File(
                request.getServletContext().getRealPath("/") + "imgs/" + request.getParameter("getthumb"));
        if (file.exists()) {
            System.out.println(file.getAbsolutePath());
            String mimetype = getMimeType(file);
            if (mimetype.endsWith("png") || mimetype.endsWith("jpeg") || mimetype.endsWith("jpg")
                    || mimetype.endsWith("gif")) {
                BufferedImage im = ImageIO.read(file);
                if (im != null) {
                    BufferedImage thumb = Scalr.resize(im, 75);
                    ByteArrayOutputStream os = new ByteArrayOutputStream();
                    if (mimetype.endsWith("png")) {
                        ImageIO.write(thumb, "PNG", os);
                        response.setContentType("image/png");
                    } else if (mimetype.endsWith("jpeg")) {
                        ImageIO.write(thumb, "jpg", os);
                        response.setContentType("image/jpeg");
                    } else if (mimetype.endsWith("jpg")) {
                        ImageIO.write(thumb, "jpg", os);
                        response.setContentType("image/jpeg");
                    } else {
                        ImageIO.write(thumb, "GIF", os);
                        response.setContentType("image/gif");
                    }
                    ServletOutputStream srvos = response.getOutputStream();
                    response.setContentLength(os.size());
                    response.setHeader("Content-Disposition", "inline; filename=\"" + file.getName() + "\"");
                    os.writeTo(srvos);
                    srvos.flush();
                    srvos.close();
                }
            }
        } // TODO: check and report success
    } else {
        PrintWriter writer = response.getWriter();
        writer.write("call POST with multipart form data");
    }
}

---

From source file:com.quigley.zabbixj.agent.active.ActiveThread.java

private JSONObject getResponse(byte[] responseBytes) throws Exception {
    byte[] sizeBuffer = new byte[8];
    int index = 0;
    for (int i = 12; i > 4; i--) {
        sizeBuffer[index++] = responseBytes[i];
    }/*from  ww w  . j a va2 s. com*/
    ByteArrayInputStream bais = new ByteArrayInputStream(sizeBuffer);
    DataInputStream dis = new DataInputStream(bais);
    long size = dis.readLong();
    dis.close();
    bais.close();

    byte[] jsonBuffer = new byte[responseBytes.length - 13];
    if (jsonBuffer.length != size) {
        throw new ZabbixException("Reported and actual buffer sizes differ!");
    }

    index = 0;
    for (int i = 13; i < responseBytes.length; i++) {
        jsonBuffer[index++] = responseBytes[i];
    }

    JSONObject response = new JSONObject(new String(jsonBuffer));

    return response;
}

---

From source file:org.apache.hadoop.hdfs.server.namenode.metrics.TestNameNodeMetrics.java

private void readFile(FileSystem fileSys, Path name) throws IOException {
    //Just read file so that getNumBlockLocations are incremented
    DataInputStream stm = fileSys.open(name);
    byte[] buffer = new byte[4];
    stm.read(buffer, 0, 4);/*  w w  w.  ja  v a 2  s  .  co m*/
    stm.close();
}

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From source file:com.buaa.cfs.security.token.Token.java

/**
 * Get the token identifier object, or null if it could not be constructed (because the class could not be loaded,
 * for example)./*from w w w .j  a v a2s.c  o m*/
 *
 * @return the token identifier, or null
 *
 * @throws IOException
 */
@SuppressWarnings("unchecked")
public T decodeIdentifier() throws IOException {
    Class<? extends TokenIdentifier> cls = getClassForIdentifier(getKind());
    if (cls == null) {
        return null;
    }
    TokenIdentifier tokenIdentifier = ReflectionUtils.newInstance(cls, null);
    ByteArrayInputStream buf = new ByteArrayInputStream(identifier);
    DataInputStream in = new DataInputStream(buf);
    tokenIdentifier.readFields(in);
    in.close();
    return (T) tokenIdentifier;
}

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From source file:org.apache.hama.bsp.message.compress.SnappyCompressor.java

/**
 * Decompresses a BSPCompressedBundle and returns the corresponding
 * BSPMessageBundle./*from   www.j av  a 2  s  .  co m*/
 * 
 * @param compMsgBundle
 * @return
 */
@Override
public byte[] decompress(byte[] compressedBytes) {
    ByteArrayInputStream bis = null;
    SnappyInputStream sis = null;
    DataInputStream dis = null;
    byte[] bytes = null;

    try {
        bis = new ByteArrayInputStream(compressedBytes);
        sis = new SnappyInputStream(bis);
        dis = new DataInputStream(sis);

        bytes = IOUtils.toByteArray(dis);
    } catch (IOException ioe) {
        LOG.error("Unable to decompress.", ioe);
    } finally {
        try {
            dis.close();
            sis.close();
            bis.close();
        } catch (IOException e) {
            LOG.warn("Failed to close decompression streams.", e);
        }
    }

    return bytes;
}

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