Java Text File Write by Charset copy(byte[] input, Writer output, Charset charset)

Description

copy

License

Open Source License

Declaration

public static void copy(byte[] input, Writer output, Charset charset) throws IOException 

Method Source Code

//package com.java2s;
/*  Copyright (c) 2010 Xiaoyun Zhu
 * //from  www. ja  v  a2s  .c o  m
 *  Permission is hereby granted, free of charge, to any person obtaining a copy  
 *  of this software and associated documentation files (the "Software"), to deal  
 *  in the Software without restriction, including without limitation the rights  
 *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell  
 *  copies of the Software, and to permit persons to whom the Software is  
 *  furnished to do so, subject to the following conditions:
 *  
 *  The above copyright notice and this permission notice shall be included in  
 *  all copies or substantial portions of the Software.
 *  
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR  
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,  
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE  
 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER  
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,  
 *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN  
 *  THE SOFTWARE.  
 */

import java.io.ByteArrayInputStream;

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.StringReader;
import java.io.Writer;
import java.nio.charset.Charset;

public class Main {
    public static final int DEFAULT_BUFFER_SIZE = 1024 * 64;

    public static void copy(byte[] input, OutputStream output) throws IOException {
        output.write(input);
    }

    public static void copy(byte[] input, Writer output) throws IOException {
        ByteArrayInputStream in = new ByteArrayInputStream(input);
        copy(in, output);
    }

    public static void copy(byte[] input, Writer output, Charset charset) throws IOException {
        ByteArrayInputStream in = new ByteArrayInputStream(input);
        copy(in, output, charset);
    }

    public static long copy(Reader input, Writer output) throws IOException {
        char[] buffer = new char[DEFAULT_BUFFER_SIZE];
        long count = 0;
        int n = 0;
        while (-1 != (n = input.read(buffer))) {
            output.write(buffer, 0, n);
            count += n;
        }
        return 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, Charset charset) throws IOException {
        InputStreamReader in = new InputStreamReader(input, charset);
        copy(in, output);
    }

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

    public static void copy(Reader input, OutputStream output) throws IOException {
        OutputStreamWriter out = new OutputStreamWriter(output);
        copy(input, out);
        // XXX Unless anyone is planning on rewriting OutputStreamWriter, we have to flush here.
        out.flush();
    }

    public static void copy(String input, OutputStream output) throws IOException {
        StringReader in = new StringReader(input);
        OutputStreamWriter out = new OutputStreamWriter(output);
        copy(in, out);
        // XXX Unless anyone is planning on rewriting OutputStreamWriter, we have to flush here.
        out.flush();
    }

    public static void copy(String input, Writer output) throws IOException {
        output.write(input);
    }

    public static long copy(InputStream input, OutputStream output) throws IOException {
        final byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
        long count = 0;
        int n = 0;
        while (-1 != (n = input.read(buffer))) {
            output.write(buffer, 0, n);
            count += n;
        }
        return count;
    }
}

Related

1. createWriter(@Nullable final OutputStream aOS, @Nonnull final Charset aCharset)
2. createWriter(@Nullable final OutputStream aOS, @Nonnull final String sCharset)
3. getWriter(OutputStream os, String charset)
4. getWriter(OutputStream out, String charsetName)