Example usage for java.io DataOutput write

Introduction

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

Prototype

void write(byte b[]) throws IOException;

Source Link

Document

Writes to the output stream all the bytes in array b.

Usage

From source file:bobs.is.compress.sevenzip.SevenZOutputFile.java

private void writeFileCTimes(final DataOutput header) throws IOException {
    int numCreationDates = 0;
    for (final SevenZArchiveEntry entry : files) {
        if (entry.getHasCreationDate()) {
            ++numCreationDates;/*from   w  w  w. j  a  v  a 2 s  .  co m*/
        }
    }
    if (numCreationDates > 0) {
        header.write(NID.kCTime);

        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final DataOutputStream out = new DataOutputStream(baos);
        if (numCreationDates != files.size()) {
            out.write(0);
            final BitSet cTimes = new BitSet(files.size());
            for (int i = 0; i < files.size(); i++) {
                cTimes.set(i, files.get(i).getHasCreationDate());
            }
            writeBits(out, cTimes, files.size());
        } else {
            out.write(1); // "allAreDefined" == true
        }
        out.write(0);
        for (final SevenZArchiveEntry entry : files) {
            if (entry.getHasCreationDate()) {
                out.writeLong(
                        Long.reverseBytes(SevenZArchiveEntry.javaTimeToNtfsTime(entry.getCreationDate())));
            }
        }
        out.flush();
        final byte[] contents = baos.toByteArray();
        writeUint64(header, contents.length);
        header.write(contents);
    }
}

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From source file:bobs.is.compress.sevenzip.SevenZOutputFile.java

private void writeFileEmptyStreams(final DataOutput header) throws IOException {
    boolean hasEmptyStreams = false;
    for (final SevenZArchiveEntry entry : files) {
        if (!entry.hasStream()) {
            hasEmptyStreams = true;//from  ww  w .j  a va 2s  .  c  om
            break;
        }
    }
    if (hasEmptyStreams) {
        header.write(NID.kEmptyStream);
        final BitSet emptyStreams = new BitSet(files.size());
        for (int i = 0; i < files.size(); i++) {
            emptyStreams.set(i, !files.get(i).hasStream());
        }
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final DataOutputStream out = new DataOutputStream(baos);
        writeBits(out, emptyStreams, files.size());
        out.flush();
        final byte[] contents = baos.toByteArray();
        writeUint64(header, contents.length);
        header.write(contents);
    }
}

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From source file:bobs.is.compress.sevenzip.SevenZOutputFile.java

private void writeFileMTimes(final DataOutput header) throws IOException {
    int numLastModifiedDates = 0;
    for (final SevenZArchiveEntry entry : files) {
        if (entry.getHasLastModifiedDate()) {
            ++numLastModifiedDates;/*from  w w w .j ava  2 s .c o m*/
        }
    }
    if (numLastModifiedDates > 0) {
        header.write(NID.kMTime);

        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final DataOutputStream out = new DataOutputStream(baos);
        if (numLastModifiedDates != files.size()) {
            out.write(0);
            final BitSet mTimes = new BitSet(files.size());
            for (int i = 0; i < files.size(); i++) {
                mTimes.set(i, files.get(i).getHasLastModifiedDate());
            }
            writeBits(out, mTimes, files.size());
        } else {
            out.write(1); // "allAreDefined" == true
        }
        out.write(0);
        for (final SevenZArchiveEntry entry : files) {
            if (entry.getHasLastModifiedDate()) {
                out.writeLong(
                        Long.reverseBytes(SevenZArchiveEntry.javaTimeToNtfsTime(entry.getLastModifiedDate())));
            }
        }
        out.flush();
        final byte[] contents = baos.toByteArray();
        writeUint64(header, contents.length);
        header.write(contents);
    }
}

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From source file:bobs.is.compress.sevenzip.SevenZOutputFile.java

private void writeFileWindowsAttributes(final DataOutput header) throws IOException {
    int numWindowsAttributes = 0;
    for (final SevenZArchiveEntry entry : files) {
        if (entry.getHasWindowsAttributes()) {
            ++numWindowsAttributes;// w ww .jav  a  2 s  .  c o m
        }
    }
    if (numWindowsAttributes > 0) {
        header.write(NID.kWinAttributes);

        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final DataOutputStream out = new DataOutputStream(baos);
        if (numWindowsAttributes != files.size()) {
            out.write(0);
            final BitSet attributes = new BitSet(files.size());
            for (int i = 0; i < files.size(); i++) {
                attributes.set(i, files.get(i).getHasWindowsAttributes());
            }
            writeBits(out, attributes, files.size());
        } else {
            out.write(1); // "allAreDefined" == true
        }
        out.write(0);
        for (final SevenZArchiveEntry entry : files) {
            if (entry.getHasWindowsAttributes()) {
                out.writeInt(Integer.reverseBytes(entry.getWindowsAttributes()));
            }
        }
        out.flush();
        final byte[] contents = baos.toByteArray();
        writeUint64(header, contents.length);
        header.write(contents);
    }
}

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From source file:edu.umn.cs.spatialHadoop.visualization.FrequencyMap.java

@Override
public void write(DataOutput out) throws IOException {
    super.write(out);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    GZIPOutputStream gzos = new GZIPOutputStream(baos);
    ByteBuffer bbuffer = ByteBuffer.allocate(getHeight() * 4 + 8);
    bbuffer.putInt(getWidth());/*from  w w w  . j  a  v  a2s  .c  o m*/
    bbuffer.putInt(getHeight());
    gzos.write(bbuffer.array(), 0, bbuffer.position());
    for (int x = 0; x < getWidth(); x++) {
        bbuffer.clear();
        for (int y = 0; y < getHeight(); y++) {
            bbuffer.putFloat(frequencies[x][y]);
        }
        gzos.write(bbuffer.array(), 0, bbuffer.position());
    }
    gzos.close();

    byte[] serializedData = baos.toByteArray();
    out.writeInt(serializedData.length);
    out.write(serializedData);
}

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From source file:com.fiorano.openesb.application.DmiObject.java

/**
 *  This method writes the string specified by the <code>str</code> argument
 *  to the output stream specified by the <code>os</code> argument.
 *
 * @param os output stream/*from w  w w  .  j av  a 2  s.  co  m*/
 * @param str string to be written
 * @exception IOException IOException
 */
protected void writeUTF(DataOutput os, String str) throws IOException {
    if (str == null) {
        os.writeInt(-1);
    } else {
        byte[] bytes = str.getBytes("UTF-8");

        os.writeInt(bytes.length);
        os.write(bytes);
    }
}

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From source file:bobs.is.compress.sevenzip.SevenZOutputFile.java

private void writeUint64(final DataOutput header, long value) throws IOException {
    int firstByte = 0;
    int mask = 0x80;
    int i;// w  ww .j  a va 2  s.c  o  m
    for (i = 0; i < 8; i++) {
        if (value < ((1L << (7 * (i + 1))))) {
            firstByte |= (value >>> (8 * i));
            break;
        }
        firstByte |= mask;
        mask >>>= 1;
    }
    header.write(firstByte);
    for (; i > 0; i--) {
        header.write((int) (0xff & value));
        value >>>= 8;
    }
}

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From source file:bobs.is.compress.sevenzip.SevenZOutputFile.java

private void writeFolder(final DataOutput header, final SevenZArchiveEntry entry) throws IOException {
    final ByteArrayOutputStream bos = new ByteArrayOutputStream();
    int numCoders = 0;
    for (final SevenZMethodConfiguration m : getContentMethods(entry)) {
        numCoders++;//  w  w  w  .  j  a  v  a 2  s . co m
        writeSingleCodec(m, bos);
    }

    writeUint64(header, numCoders);
    header.write(bos.toByteArray());
    for (int i = 0; i < numCoders - 1; i++) {
        writeUint64(header, i + 1);
        writeUint64(header, i);
    }
}

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From source file:bobs.is.compress.sevenzip.SevenZOutputFile.java

private void writeFileAntiItems(final DataOutput header) throws IOException {
    boolean hasAntiItems = false;
    final BitSet antiItems = new BitSet(0);
    int antiItemCounter = 0;
    for (final SevenZArchiveEntry file1 : files) {
        if (!file1.hasStream()) {
            final boolean isAnti = file1.isAntiItem();
            antiItems.set(antiItemCounter++, isAnti);
            hasAntiItems |= isAnti;//ww  w  .j av  a2 s.c  o  m
        }
    }
    if (hasAntiItems) {
        header.write(NID.kAnti);
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final DataOutputStream out = new DataOutputStream(baos);
        writeBits(out, antiItems, antiItemCounter);
        out.flush();
        final byte[] contents = baos.toByteArray();
        writeUint64(header, contents.length);
        header.write(contents);
    }
}

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From source file:bobs.is.compress.sevenzip.SevenZOutputFile.java

private void writeFileEmptyFiles(final DataOutput header) throws IOException {
    boolean hasEmptyFiles = false;
    int emptyStreamCounter = 0;
    final BitSet emptyFiles = new BitSet(0);
    for (final SevenZArchiveEntry file1 : files) {
        if (!file1.hasStream()) {
            final boolean isDir = file1.isDirectory();
            emptyFiles.set(emptyStreamCounter++, !isDir);
            hasEmptyFiles |= !isDir;//  w w w .  j  a  v a2 s. co  m
        }
    }
    if (hasEmptyFiles) {
        header.write(NID.kEmptyFile);
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final DataOutputStream out = new DataOutputStream(baos);
        writeBits(out, emptyFiles, emptyStreamCounter);
        out.flush();
        final byte[] contents = baos.toByteArray();
        writeUint64(header, contents.length);
        header.write(contents);
    }
}

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