Java InputStream to OutputStream copyStream(InputStream in, OutputStream out)

Description

copy Stream

License

Open Source License

Declaration

public static long copyStream(InputStream in, OutputStream out) throws IOException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

public class Main {

    public static long copyStream(InputStream in, OutputStream out) throws IOException {
        return copyStream(in, 0, out);
    }//from  ww w  .  j  av a2  s. c  o  m

    public static long copyStream(InputStream in, OutputStream... outs) throws IOException {
        long size = 0;

        BufferedInputStream bis = null;
        BufferedOutputStream[] oses = null;
        try {
            bis = new BufferedInputStream(in);

            oses = new BufferedOutputStream[outs.length];
            for (int i = 0; i < oses.length; i++) {
                oses[i] = new BufferedOutputStream(outs[i]);
            }

            int read = 0;
            byte[] bytes = new byte[1024];
            while ((read = bis.read(bytes)) != -1) {
                for (BufferedOutputStream os : oses) {
                    os.write(bytes, 0, read);
                }
                bytes = new byte[1024];
                size = size + read;
            }
        } catch (IOException ex) {
            if (bis != null) {
                bis.close();
            }
            if (oses != null) {
                for (BufferedOutputStream os : oses) {
                    if (os != null) {
                        os.flush();
                        os.close();
                    }
                }
            }
        }
        return size;
    }

    public static long copyStream(InputStream in, long skip, OutputStream out) throws IOException {
        long size = 0;
        BufferedInputStream bis = null;
        BufferedOutputStream os = null;
        try {
            bis = new BufferedInputStream(in);
            os = new BufferedOutputStream(out);
            int read = 0;
            byte[] bytes = new byte[1024];

            if (skip > 0) {
                bis.skip(skip);
            }

            while ((read = bis.read(bytes)) != -1) {
                os.write(bytes, 0, read);
                bytes = new byte[1024];
                size = size + read;
            }
        } catch (IOException ex) {
            throw ex;
        } finally {
            if (bis != null) {
                bis.close();
            }
            if (os != null) {
                os.flush();
                os.close();
            }
        }
        return size;
    }

    public static long copyStream(InputStream in, OutputStream out, int skip, int length) throws IOException {
        long size = 0;
        BufferedInputStream bis = null;
        BufferedOutputStream bos = null;
        try {
            bis = new BufferedInputStream(in);
            bos = new BufferedOutputStream(out);
            if (skip > 0) {
                bis.skip(skip);
            }

            int read = 0;
            byte[] bytes = new byte[1024];
            while ((read = bis.read(bytes)) != -1 && size < length) {
                if (length - size < read) {
                    read = (int) (length - size);
                }
                bos.write(bytes, 0, read);
                bytes = new byte[1024];
                size = size + read;
            }

        } catch (IOException ex) {
            throw ex;
        } finally {
            if (bis != null) {
                bis.close();
            }
            if (bos != null) {
                bos.flush();
                bos.close();
            }
        }
        return size;
    }
}

Related

1. copyStream(InputStream in, OutputStream out)
2. copyStream(InputStream in, OutputStream out)
3. copyStream(InputStream in, OutputStream out)
4. copyStream(InputStream in, OutputStream out)
5. copyStream(InputStream in, OutputStream out)
6. copyStream(InputStream in, OutputStream out, boolean closeIn, boolean closeOut)
7. copyStream(InputStream in, OutputStream out, boolean closeOut)
8. copyStream(InputStream in, OutputStream out, int bufferSize)
9. copyStream(InputStream in, OutputStream out, int bufsize)