InputStream to byte array, copy Reader and Writer, : Stream « File « Android






  1. Android
  2. File
  3. Stream

InputStream to byte array, copy Reader and Writer,

   
//package net.javalib.flickr.search.util;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.Reader;
import java.io.StringWriter;
import java.io.Writer;

/**
 * IO Utilities.
 * Based on code from commons-io
 */
class IOUtil {
  public static byte[] toByteArray(InputStream in) throws IOException {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    int read = 0;
    byte[] buffer = new byte[1024];
    while (read != -1) {
      read = in.read(buffer);
      if (read != -1)
        out.write(buffer,0,read);
    }
    out.close();
    return out.toByteArray();
  }
  
  public static String toString(InputStream in) throws IOException {
    StringWriter out = new StringWriter();
    copy(new InputStreamReader(in),out);
    out.close();
    in.close();
    return out.toString();
  }
  
  public static int copy(InputStream in, OutputStream out) throws IOException {
    int count = 0;
    int read = 0;
    byte[] buffer = new byte[1024];
    while (read != -1) {
      read = in.read(buffer);
      if (read != -1) {
        count += read;
        out.write(buffer,0,read);
      }
    }
    return count;
  }
  
  public static int copy(Reader input,Writer output) throws IOException {
        char[] buffer = new char[1024];
        int count = 0;
        int n = 0;
        while (-1 != (n = input.read(buffer))) {
            output.write(buffer, 0, n);
            count += n;
        }
        return count;
    }

}








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