com.jianggujin.http.util.JOutputStream Maven / Gradle / Ivy

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package com.jianggujin.http.util;

import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;

/**
 * 输出流，支持字节字符输出
 * 
 * @author jianggujin
 *
 */
public class JOutputStream extends BufferedOutputStream {
   private String charset = JDataUtils.defaultCharset;

   public JOutputStream(OutputStream out) {
      super(out);
   }

   public JOutputStream(OutputStream out, String charset) {
      super(out);
      if (!Charset.isSupported(charset)) {
         throw new IllegalArgumentException("not support charset [" + charset + "]");
      }
      this.charset = charset;
   }

   public JOutputStream(OutputStream out, int size) {
      super(out, size);
   }

   /**
    * 获得字符编码
    * 
    * @return
    */
   public String getCharset() {
      return charset;
   }

   /**
    * 设置字符编码
    * 
    * @param charset
    */
   public void setCharset(String charset) {
      this.charset = charset;
   }

   /**
    * 写入字符
    * 
    * @param c
    * @throws IOException
    */
   public void write(char c) throws IOException {
      this.write(new char[] { c });
   }

   /**
    * 写入字符数组
    * 
    * @param c
    * @throws IOException
    */
   public void write(char[] c) throws IOException {
      this.write(c, 0, c.length);
   }

   /**
    * 写入字符数组
    * 
    * @param cbuf
    * @param off
    * @param len
    * @throws IOException
    */
   public void write(char[] cbuf, int off, int len) throws IOException {
      // this.write(Charset.forName(charset).encode(CharBuffer.wrap(cbuf, off,
      // len)));
      this.write(new String(cbuf, off, len));
   }

   /**
    * 写入字符序列
    * 
    * @param cs
    * @throws IOException
    */
   public void write(CharSequence cs) throws IOException {
      this.write(cs.toString().getBytes(charset));
      // this.write(cs, 0, cs.length());
   }

   /**
    * 写入字符序列
    * 
    * @param cs
    * @param off
    * @param len
    * @throws IOException
    */
   public void write(CharSequence cs, int off, int len) throws IOException {
      // this.write(Charset.forName(charset).encode(CharBuffer.wrap(cs, off,
      // len)));
      this.write(cs.subSequence(off, len));
   }

   /**
    * 写入字节缓冲区
    * 
    * @param buffer
    * @throws IOException
    */
   public void write(ByteBuffer buffer) throws IOException {
      this.write(buffer.array());
   }
}