Example usage for java.io DataOutputStream writeInt

Introduction

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

Prototype

public final void writeInt(int v) throws IOException 

Source Link

Document

Writes an int to the underlying output stream as four bytes, high byte first.

Usage

From source file:org.sakaiproject.nakamura.auth.trusted.TokenStore.java

/**
 * Save all the secureKeys to file//from  w ww.  jav  a2s.  co m
 */
@edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "RV_RETURN_VALUE_IGNORED_BAD_PRACTICE", justification = "Could be injected from annother bundle")
private void saveLocalSecretKeys() {
    FileOutputStream fout = null;
    DataOutputStream keyOutputStream = null;
    try {
        File parent = tokenFile.getAbsoluteFile().getParentFile();
        LOG.debug("Saving Local Secret Keys to {} ", tokenFile.getAbsoluteFile());
        if (!parent.exists()) {
            parent.mkdirs();
        }
        fout = new FileOutputStream(tmpTokenFile);
        keyOutputStream = new DataOutputStream(fout);
        keyOutputStream.writeInt(secretKeyId);
        keyOutputStream.writeLong(nextUpdate);
        for (int i = 0; i < secretKeyRingBuffer.length; i++) {
            if (secretKeyRingBuffer[i] == null) {
                keyOutputStream.writeInt(0);
            } else {
                keyOutputStream.writeInt(1);
                keyOutputStream.writeLong(secretKeyRingBuffer[i].getExpires());
                keyOutputStream.writeUTF(secretKeyRingBuffer[i].getServerId());
                byte[] b = secretKeyRingBuffer[i].getSecretKey().getEncoded();
                keyOutputStream.writeInt(b.length);
                keyOutputStream.write(b);
            }
        }
        keyOutputStream.close();
        if (!tmpTokenFile.renameTo(tokenFile)) {
            LOG.error(
                    "Failed to save cookie keys, rename of tokenFile failed. Reload of secure token keys will fail while this is happening. ");
        }
    } catch (IOException e) {
        LOG.error("Failed to save cookie keys " + e.getMessage());
    } finally {
        try {
            keyOutputStream.close();
        } catch (Exception e) {
        }
        try {
            fout.close();
        } catch (Exception e) {
        }

    }
}

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From source file:org.apache.fontbox.ttf.TTFSubsetter.java

/**
 * @param out The data output stream.// w ww  .  ja v  a 2s.c o  m
 * @param nTables The number of table.
 * @return The file offset of the first TTF table to write.
 * @throws IOException Upon errors.
 */
private long writeFileHeader(DataOutputStream out, int nTables) throws IOException {
    out.writeInt(0x00010000);
    out.writeShort(nTables);

    int mask = Integer.highestOneBit(nTables);
    int searchRange = mask * 16;
    out.writeShort(searchRange);

    int entrySelector = log2(mask);

    out.writeShort(entrySelector);

    // numTables * 16 - searchRange
    int last = 16 * nTables - searchRange;
    out.writeShort(last);

    return 0x00010000L + toUInt32(nTables, searchRange) + toUInt32(entrySelector, last);
}

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From source file:org.carbondata.processing.restructure.SchemaRestructurer.java

private void writeLevelCardinalityFile(String loadFolderLoc, String tableName, int[] dimCardinality)
        throws KettleException {
    String levelCardinalityFilePath = loadFolderLoc + File.separator + CarbonCommonConstants.LEVEL_METADATA_FILE
            + tableName + ".metadata";

    DataOutputStream outstream = null;
    try {/*  w  w w  .j  av  a2 s .  c  o  m*/
        int dimCardinalityArrLength = dimCardinality.length;

        outstream = FileFactory.getDataOutputStream(levelCardinalityFilePath,
                FileFactory.getFileType(levelCardinalityFilePath));
        outstream.writeInt(dimCardinalityArrLength);

        for (int i = 0; i < dimCardinalityArrLength; i++) {
            outstream.writeInt(dimCardinality[i]);
        }

        LOGGER.info("Level cardinality file written to : " + levelCardinalityFilePath);
    } catch (IOException e) {
        LOGGER.error(
                "Error while writing level cardinality file : " + levelCardinalityFilePath + e.getMessage());
        throw new KettleException("Not able to write level cardinality file", e);
    } finally {
        CarbonUtil.closeStreams(outstream);
    }
}

---

From source file:br.org.indt.ndg.servlets.PostResults.java

protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    log.info("Trying to process result stream from " + request.getRemoteAddr());

    DataOutputStream dataOutputStream = new DataOutputStream(response.getOutputStream());

    servletError = false;/* w w w. ja  va 2  s  . com*/

    String results = Decompress(request);

    if (servletError) {
        dataOutputStream.writeInt(FAILURE);
        log.error("Failed processing result stream from " + request.getRemoteAddr());
    } else {
        if (results != null) {
            StringReader stringReader = new StringReader(results);
            BufferedReader bufferedReader = new BufferedReader(stringReader);
            StringBuffer stringBuffer = new StringBuffer();

            String line = bufferedReader.readLine();

            while ((line != null) && (!servletError)) {
                stringBuffer.append(line + '\n');

                if (line.trim().equals("</result>")) {
                    log.info("============= Result received by GPRS ============");
                    log.info(stringBuffer);

                    try {
                        msmBD.postResult(stringBuffer, createTransactionLogVO(request));
                        stringBuffer = new StringBuffer();

                        servletError = false;
                    } catch (Exception e) {
                        servletError = true;
                    }
                }

                line = bufferedReader.readLine();
            }

            if (servletError) {
                dataOutputStream.writeInt(FAILURE);
                log.error("Failed processing result stream from " + request.getRemoteAddr());
            } else {
                dataOutputStream.writeInt(SUCCESS);
                log.info("Successfully processed result stream from " + request.getRemoteAddr());
            }

            bufferedReader.close();
        } else {
            dataOutputStream.writeInt(SUCCESS);
            log.error("Failed processing stream from " + request.getRemoteAddr());
        }
    }

    dataOutputStream.close();
}

---

From source file:org.commoncrawl.service.crawlhistory.CrawlHistoryServer.java

private void serializeBloomFilter(Path checkpointPath) throws IOException {

    FileSystem fs = CrawlEnvironment.getDefaultFileSystem();

    // delete existing ... 
    fs.delete(checkpointPath, false);//from  w  ww . j  ava2  s.com

    FSDataOutputStream outputStream = fs.create(checkpointPath);

    try {
        DataOutputStream dataOut = new DataOutputStream(outputStream);

        dataOut.writeInt(0); // version 
        dataOut.writeInt(_state.getCurrentCrawlNumber()); // crawl number ... 

        // serialize bloom filter contents ... 
        _bloomFilter.serialize(outputStream);
    } finally {
        if (outputStream != null) {
            outputStream.flush();
            outputStream.close();
        }
    }
}

---

From source file:com.zpci.firstsignhairclipdemo.MainActivity.java

public void savewavefile(byte[] ra) {
    //prepend 44 byte wave header to data

    int sampleRate = 8000; // audio sample rate is 8000 SPS
    int numSecs = ra.length / sampleRate; // number of seconds of audio to record
    int samples = sampleRate * numSecs; // number of samples in file
    short bitsPerSample = 8; // one byte per sample
    int filesize = samples + 44; // check this?
    int fmtChunkSize = 16; // size of 'fmt' chunk
    short channels = 1; // mono
    int byteRate = sampleRate * channels * bitsPerSample / 8; // will be 8K for us
    short format = 1; // 1 == uncompressed pcm
    short blockalign = (short) (channels * bitsPerSample / 8); // bytes per sample
    int audiolen = samples * channels * bitsPerSample / 8; // length of audio in bytes

    try {/*from  w w  w.j  a  v a  2  s  .  com*/
        //OutputStream os = openFileOutput("diagaudio.wav", Context.MODE_PRIVATE);
        String state = Environment.getExternalStorageState();
        Log.d(TAG, "External storage state: " + state);
        if (Environment.MEDIA_MOUNTED.equals(state)) {

            //create firstsign directory
            File rootPath = new File(Environment.getExternalStorageDirectory(), "firstsign");
            if (!rootPath.exists()) {
                rootPath.mkdirs();
                Log.d(TAG, "mkdirs");
            }
            File file = new File(rootPath, "hairclipaudio.wav");
            file.createNewFile();
            OutputStream os = new FileOutputStream(file);
            BufferedOutputStream bos = new BufferedOutputStream(os);
            DataOutputStream wf = new DataOutputStream(bos);

            wf.write("RIFF".getBytes());
            wf.writeInt(Integer.reverseBytes(filesize - 8));
            wf.write("WAVE".getBytes());
            wf.write("fmt ".getBytes());
            wf.writeInt(Integer.reverseBytes(fmtChunkSize));
            wf.writeShort(Short.reverseBytes(format));
            wf.writeShort(Short.reverseBytes(channels));
            wf.writeInt(Integer.reverseBytes(sampleRate));
            wf.writeInt(Integer.reverseBytes(byteRate));
            wf.writeShort(Short.reverseBytes(blockalign));
            wf.writeShort(Short.reverseBytes(bitsPerSample));
            wf.write("data".getBytes());
            wf.writeInt(Integer.reverseBytes(audiolen));
            wf.write(ra);

            wf.close();
            bos.close();
            os.close();

            Log.d(TAG, "wavefile write complete");
        } else {
            Toast.makeText(this, "SDCard not mounted", Toast.LENGTH_LONG).show();
        } //what do i do?

    } catch (Exception e) {
        Log.e(TAG, "exception in savewavefile");
        e.printStackTrace();
    }

}

---

From source file:au.org.ala.spatial.util.RecordsSmall.java

private void makeUniquePoints() throws Exception {
    //make unique points and index
    points = new RandomAccessFile(filename + "records.csv.small.points", "r");
    double[] allPoints = getPointsAll();
    Coord[] p = new Coord[allPoints.length / 2];
    for (int i = 0; i < allPoints.length; i += 2) {
        p[i / 2] = new Coord(allPoints[i], allPoints[i + 1], i / 2);
    }/*from  w  w w . j a v a2  s. co m*/
    allPoints = null; //make available to GC
    Arrays.sort(p, new Comparator<Coord>() {
        public int compare(Coord o1, Coord o2) {
            return o1.longitude == o2.longitude
                    ? (o1.latitude == o2.latitude ? 0 : (o1.latitude - o2.latitude > 0.0 ? 1 : -1))
                    : (o1.longitude - o2.longitude > 0.0 ? 1 : -1);
        }
    });

    DataOutputStream outputUniquePoints = new DataOutputStream(
            new BufferedOutputStream(new FileOutputStream(filename + "records.csv.small.pointsUniquePoints")));
    DataOutputStream outputUniqueIdx = new DataOutputStream(
            new BufferedOutputStream(new FileOutputStream(filename + "records.csv.small.pointsUniqueIdx")));

    int pos = -1; //first point is set after pos++
    int[] newPos = new int[p.length];
    for (int i = 0; i < p.length; i++) {
        if (i == 0 || p[i].latitude != p[i - 1].latitude || p[i].longitude != p[i - 1].longitude) {
            outputUniquePoints.writeDouble(p[i].latitude);
            outputUniquePoints.writeDouble(p[i].longitude);
            pos++;
        }
        newPos[p[i].pos] = pos;
    }
    for (int i = 0; i < p.length; i++) {
        outputUniqueIdx.writeInt(newPos[i]);
    }

    outputUniqueIdx.flush();
    outputUniqueIdx.close();
    outputUniquePoints.flush();
    outputUniquePoints.close();

    points.close();
}

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From source file:org.apache.sshd.server.sftp.SftpSubsystem.java

protected void send(Buffer buffer) throws IOException {
    DataOutputStream dos = new DataOutputStream(out);
    dos.writeInt(buffer.available());
    dos.write(buffer.array(), buffer.rpos(), buffer.available());
    dos.flush();/*from   w  w  w  .  j  a  va2  s .co m*/
}

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From source file:com.linkedin.pinot.core.startree.OffHeapStarTreeBuilder.java

private void appendToBuffer(DataOutputStream dos, DimensionBuffer dimensions, MetricBuffer metricHolder)
        throws IOException {
    for (int i = 0; i < numDimensions; i++) {
        dos.writeInt(dimensions.getDimension(i));
    }//from  ww  w. ja v  a 2 s  . com
    dos.write(metricHolder.toBytes(metricSizeBytes));
}

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From source file:org.apache.hadoop.hbase.util.RegionMover.java

/**
 * Write the number of regions moved in the first line followed by regions moved in subsequent
 * lines//from  w w  w . j a  v a 2  s.  c  o  m
 * @param filename
 * @param movedRegions
 * @throws IOException
 */
private void writeFile(String filename, List<HRegionInfo> movedRegions) throws IOException {
    FileOutputStream fos = null;
    DataOutputStream dos = null;
    try {
        fos = new FileOutputStream(filename);
        dos = new DataOutputStream(fos);
        dos.writeInt(movedRegions.size());
        for (HRegionInfo region : movedRegions) {
            Bytes.writeByteArray(dos, region.toByteArray());
        }
    } catch (IOException e) {
        LOG.error("ERROR: Was Not able to write regions moved to output file but moved " + movedRegions.size()
                + " regions", e);
        throw e;
    } finally {
        if (dos != null) {
            dos.close();
        }
        if (fos != null) {
            fos.close();
        }
    }
}

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