Example usage for org.apache.commons.io.output CountingOutputStream write

Introduction

In this page you can find the example usage for org.apache.commons.io.output CountingOutputStream write.

Prototype

public void write(byte[] b, int off, int len) throws IOException 

Source Link

Document

Writes a portion of the specified byte array to this output stream keeping count of the number of bytes written.

Usage

From source file:hudson.model.LargeText.java

/**
 * Writes the tail portion of the file to the {@link Writer}.
 *
 * <p>/*w  w  w  . j  av  a 2 s .c o  m*/
 * The text file is assumed to be in the system default encoding.
 *
 * @param start
 *      The byte offset in the input file where the write operation starts.
 *
 * @return
 *      if the file is still being written, this method writes the file
 *      until the last newline character and returns the offset to start
 *      the next write operation.
 */
public long writeLogTo(long start, Writer w) throws IOException {
    CountingOutputStream os = new CountingOutputStream(new WriterOutputStream(w));

    Session f = source.open();
    f.skip(start);

    if (completed) {
        // write everything till EOF
        byte[] buf = new byte[1024];
        int sz;
        while ((sz = f.read(buf)) >= 0)
            os.write(buf, 0, sz);
    } else {
        ByteBuf buf = new ByteBuf(null, f);
        HeadMark head = new HeadMark(buf);
        TailMark tail = new TailMark(buf);

        while (tail.moveToNextLine(f)) {
            head.moveTo(tail, os);
        }
        head.finish(os);
    }

    f.close();
    os.flush();

    return os.getCount() + start;
}

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From source file:org.jenkinsci.plugins.fabric8.support.hack.LargeText.java

/**
 * Writes the tail portion of the file to the {@link OutputStream}.
 *
 * @param start//from w  w w .  j a v a 2 s .c om
 *      The byte offset in the input file where the write operation starts.
 *
 * @return
 *      if the file is still being written, this method writes the file
 *      until the last newline character and returns the offset to start
 *      the next write operation.
 */
public long writeLogTo(long start, OutputStream out) throws IOException {
    CountingOutputStream os = new CountingOutputStream(out);

    Session f = source.open();
    f.skip(start);

    if (completed) {
        // write everything till EOF
        byte[] buf = new byte[1024];
        int sz;
        while ((sz = f.read(buf)) >= 0)
            os.write(buf, 0, sz);
    } else {
        ByteBuf buf = new ByteBuf(null, f);
        HeadMark head = new HeadMark(buf);
        TailMark tail = new TailMark(buf);
        buf = null;

        int readLines = 0;
        while (tail.moveToNextLine(f) && readLines++ < MAX_LINES_READ) {
            head.moveTo(tail, os);
        }
        head.finish(os);
    }

    f.close();
    os.flush();

    return os.getCount() + start;
}

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From source file:org.jenkinsci.plugins.fabric8.support.hack.LargeText.java

/**
 * Writes the section of the file {@link OutputStream}.
 *
 * @param start//w w w .  j  a v  a2 s . com
 *      The byte offset in the input file where the write operation starts.
 *
 * @return
 *      if the file is still being written, this method writes the file
 *      until the last newline character and returns the offset to start
 *      the next write operation.
 */
public long writeLogTo(long start, int size, OutputStream out) throws IOException {
    if (size <= 0) {
        return 0;
    }

    CountingOutputStream os = new CountingOutputStream(out);

    Session f = source.open();
    f.skip(start);

    long end = start + size;

    byte[] buf = new byte[size];
    int sz;
    if ((sz = f.read(buf)) >= 0) {
        os.write(buf, 0, sz);
    }
    /*
            if(completed) {
            } else {
    ByteBuf buf = new ByteBuf(null,f, size);
    HeadMark head = new HeadMark(buf);
    TailMark tail = new TailMark(buf);
            
    int readLines = 0;
    while(tail.moveToNextLine(f) && readLines++ < MAX_LINES_READ) {
        head.moveTo(tail, os);
        if (buf.isFull() || os.getCount() >= end) {
            break;
        }
    }
    head.finish(os);
            }
    */

    f.close();
    os.flush();

    return os.getCount() + start;
}

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