Java Reader Copy copyLarge(Reader input, Writer output)

Description

copy Large

License

Apache License

Declaration

public static long copyLarge(Reader input, Writer output)
            throws IOException 

Method Source Code

//package com.java2s;
//License from project: Apache License 

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

import java.io.Reader;
import java.io.StringWriter;
import java.io.Writer;

public class Main {
    public static long copyLarge(InputStream input, OutputStream output)
            throws IOException {
        byte[] buffer = new byte[4096];
        long count = 0L;
        int n = 0;
        while (-1 != (n = input.read(buffer))) {
            output.write(buffer, 0, n);/*from  ww  w  .j a  v a  2s  . c  o  m*/
            count += n;
        }
        return count;
    }

    public static long copyLarge(Reader input, Writer output)
            throws IOException {
        char[] buffer = new char[4096];
        long count = 0L;
        int n = 0;
        while (-1 != (n = input.read(buffer))) {
            output.write(buffer, 0, n);
            count += n;
        }
        return count;
    }

    public static void write(byte[] data, OutputStream output)
            throws IOException {
        if (data != null)
            output.write(data);
    }

    public static void write(byte[] data, Writer output) throws IOException {
        if (data != null)
            output.write(new String(data));
    }

    public static void write(byte[] data, Writer output, String encoding)
            throws IOException {
        if (data != null)
            if (encoding == null)
                write(data, output);
            else
                output.write(new String(data, encoding));
    }

    public static void write(char[] data, Writer output) throws IOException {
        if (data != null)
            output.write(data);
    }

    public static void write(char[] data, OutputStream output)
            throws IOException {
        if (data != null)
            output.write(new String(data).getBytes());
    }

    public static void write(char[] data, OutputStream output,
            String encoding) throws IOException {
        if (data != null)
            if (encoding == null)
                write(data, output);
            else
                output.write(new String(data).getBytes(encoding));
    }

    public static void write(String data, Writer output) throws IOException {
        if (data != null)
            output.write(data);
    }

    public static void write(String data, OutputStream output)
            throws IOException {
        if (data != null)
            output.write(data.getBytes());
    }

    public static void write(String data, OutputStream output,
            String encoding) throws IOException {
        if (data != null)
            if (encoding == null)
                write(data, output);
            else
                output.write(data.getBytes(encoding));
    }

    public static void write(StringBuffer data, Writer output)
            throws IOException {
        if (data != null)
            output.write(data.toString());
    }

    public static void write(StringBuffer data, OutputStream output)
            throws IOException {
        if (data != null)
            output.write(data.toString().getBytes());
    }

    public static void write(StringBuffer data, OutputStream output,
            String encoding) throws IOException {
        if (data != null)
            if (encoding == null)
                write(data, output);
            else
                output.write(data.toString().getBytes(encoding));
    }

    public static String toString(InputStream input) throws IOException {
        StringWriter sw = new StringWriter();
        copy(input, sw);
        return sw.toString();
    }

    public static String toString(InputStream input, String encoding)
            throws IOException {
        StringWriter sw = new StringWriter();
        copy(input, sw, encoding);
        return sw.toString();
    }

    public static String toString(Reader input) throws IOException {
        StringWriter sw = new StringWriter();
        copy(input, sw);
        return sw.toString();
    }

    public static String toString(byte[] input) throws IOException {
        return new String(input);
    }

    public static String toString(byte[] input, String encoding)
            throws IOException {
        if (encoding == null) {
            return new String(input);
        }
        return new String(input, encoding);
    }

    public static int copy(InputStream input, OutputStream output)
            throws IOException {
        long count = copyLarge(input, output);
        if (count > 2147483647L) {
            return -1;
        }
        return (int) count;
    }

    public static void copy(InputStream input, Writer output)
            throws IOException {
        InputStreamReader in = new InputStreamReader(input);
        copy(in, output);
    }

    public static void copy(InputStream input, Writer output,
            String encoding) throws IOException {
        if (encoding == null) {
            copy(input, output);
        } else {
            InputStreamReader in = new InputStreamReader(input, encoding);
            copy(in, output);
        }
    }

    public static int copy(Reader input, Writer output) throws IOException {
        long count = copyLarge(input, output);
        if (count > 2147483647L) {
            return -1;
        }
        return (int) count;
    }

    public static void copy(Reader input, OutputStream output)
            throws IOException {
        OutputStreamWriter out = new OutputStreamWriter(output);
        copy(input, out);

        out.flush();
    }

    public static void copy(Reader input, OutputStream output,
            String encoding) throws IOException {
        if (encoding == null) {
            copy(input, output);
        } else {
            OutputStreamWriter out = new OutputStreamWriter(output,
                    encoding);
            copy(input, out);
            out.flush();
        }
    }
}

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