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

Example 81 with SequenceInputStream

use of java.io.SequenceInputStream in project Bytecoder by mirkosertic.

the class GZIPInputStream method readTrailer.

/*
     * Reads GZIP member trailer and returns true if the eos
     * reached, false if there are more (concatenated gzip
     * data set)
     */
private boolean readTrailer() throws IOException {
    InputStream in = this.in;
    int n = inf.getRemaining();
    if (n > 0) {
        in = new SequenceInputStream(new ByteArrayInputStream(buf, len - n, n), new FilterInputStream(in) {

            public void close() throws IOException {
            }
        });
    }
    // Uses left-to-right evaluation order
    if ((readUInt(in) != crc.getValue()) || // rfc1952; ISIZE is the input size modulo 2^32
    (readUInt(in) != (inf.getBytesWritten() & 0xffffffffL)))
        throw new ZipException("Corrupt GZIP trailer");
    // try concatenated case
    if (this.in.available() > 0 || n > 26) {
        // this.trailer
        int m = 8;
        try {
            // next.header
            m += readHeader(in);
        } catch (IOException ze) {
            // ignore any malformed, do nothing
            return true;
        }
        inf.reset();
        if (n > m)
            inf.setInput(buf, len - n + m, n - m);
        return false;
    }
    return true;
}

Example 82 with SequenceInputStream

use of java.io.SequenceInputStream in project jackrabbit-oak by apache.

the class OakBufferedIndexFile method flushBlob.

private void flushBlob() throws IOException {
    if (blobModified) {
        int n = (int) Math.min(blobSize, length - (long) index * blobSize);
        InputStream in = new ByteArrayInputStream(blob, 0, n);
        if (uniqueKey != null) {
            in = new SequenceInputStream(in, new ByteArrayInputStream(uniqueKey));
        }
        Blob b = blobFactory.createBlob(in);
        if (index < data.size()) {
            data.set(index, b);
        } else {
            checkState(index == data.size());
            data.add(b);
        }
        dataModified = true;
        blobModified = false;
    }
}

Example 83 with SequenceInputStream

use of java.io.SequenceInputStream in project jackrabbit-oak by apache.

the class OakStreamingIndexFile method pushData.

private void pushData(InputStream in) throws IOException {
    if (uniqueKey != null) {
        in = new SequenceInputStream(in, new ByteArrayInputStream(uniqueKey));
    }
    blob = blobFactory.createBlob(in);
    blobModified = true;
}

Example 84 with SequenceInputStream

use of java.io.SequenceInputStream in project javacore by wang125631.

the class demo03 method merge02.

@SuppressWarnings("all")
public static // ʹ��SequenceInputStream�ϲ��ļ���
void merge02() throws IOException {
    // �ҵ�(�򴴽�)Ŀ���ļ�
    File inFile1 = new File("D:/demo01.java");
    File inFile2 = new File("D:/demo02.java");
    File outFile = new File("D:/demo03.java");
    // �������ݵ�����/���ͨ��
    FileInputStream fileInputStream1 = new FileInputStream(inFile1);
    FileInputStream fileInputStream2 = new FileInputStream(inFile2);
    FileOutputStream fileOutputStream = new FileOutputStream(outFile);
    // ��������������
    SequenceInputStream sequenceInputStream = new SequenceInputStream(fileInputStream1, fileInputStream2);
    byte[] buf = new byte[1024];
    int length = 0;
    while ((length = sequenceInputStream.read(buf)) != -1) {
        fileOutputStream.write(buf, 0, length);
    }
    sequenceInputStream.close();
    fileOutputStream.close();
}

Example 85 with SequenceInputStream

use of java.io.SequenceInputStream in project h2database by h2database.

the class Recover method readBlobMap.

/**
 * INTERNAL
 */
public static InputStream readBlobMap(Connection conn, long lobId, long precision) throws SQLException {
    final PreparedStatement prep = conn.prepareStatement("SELECT DATA FROM INFORMATION_SCHEMA.LOB_BLOCKS " + "WHERE LOB_ID = ? AND SEQ = ? AND ? > 0");
    prep.setLong(1, lobId);
    // precision is currently not really used,
    // it is just to improve readability of the script
    prep.setLong(3, precision);
    return new SequenceInputStream(new Enumeration<InputStream>() {

        private int seq;

        private byte[] data = fetch();

        private byte[] fetch() {
            try {
                prep.setInt(2, seq++);
                ResultSet rs = prep.executeQuery();
                if (rs.next()) {
                    return rs.getBytes(1);
                }
                return null;
            } catch (SQLException e) {
                throw DbException.convert(e);
            }
        }

        @Override
        public boolean hasMoreElements() {
            return data != null;
        }

        @Override
        public InputStream nextElement() {
            ByteArrayInputStream in = new ByteArrayInputStream(data);
            data = fetch();
            return in;
        }
    });
}