Start line:  
End line:  

Snippet Preview

Snippet HTML Code

Stack Overflow Questions
  /*
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
   *
   * Copyright (c) 2010-2011 Oracle and/or its affiliates. All rights reserved.
   *
   * The contents of this file are subject to the terms of either the GNU
   * General Public License Version 2 only ("GPL") or the Common Development
   * and Distribution License("CDDL") (collectively, the "License").  You
   * may not use this file except in compliance with the License.  You can
  * obtain a copy of the License at
  * http://glassfish.java.net/public/CDDL+GPL_1_1.html
  * or packager/legal/LICENSE.txt.  See the License for the specific
  * language governing permissions and limitations under the License.
  *
  * When distributing the software, include this License Header Notice in each
  * file and include the License file at packager/legal/LICENSE.txt.
  *
  * GPL Classpath Exception:
  * Oracle designates this particular file as subject to the "Classpath"
  * exception as provided by Oracle in the GPL Version 2 section of the License
  * file that accompanied this code.
  *
  * Modifications:
  * If applicable, add the following below the License Header, with the fields
  * enclosed by brackets [] replaced by your own identifying information:
  * "Portions Copyright [year] [name of copyright owner]"
  *
  * Contributor(s):
  * If you wish your version of this file to be governed by only the CDDL or
  * only the GPL Version 2, indicate your decision by adding "[Contributor]
  * elects to include this software in this distribution under the [CDDL or GPL
  * Version 2] license."  If you don't indicate a single choice of license, a
  * recipient has the option to distribute your version of this file under
  * either the CDDL, the GPL Version 2 or to extend the choice of license to
  * its licensees as provided above.  However, if you add GPL Version 2 code
  * and therefore, elected the GPL Version 2 license, then the option applies
  * only if the new code is made subject to such option by the copyright
  * holder.
  */
 
 package com.sun.jersey.core.util;
 
 import java.io.Reader;
 import java.io.Writer;
A utility class for reading and writing using byte and character streams.

If a byte or character array is utilized then the size of the array is by default the value of DEFAULT_BUFFER_SIZE. This value can be set using the system property BUFFER_SIZE_SYSTEM_PROPERTY.

Author(s):
Paul.Sandoz@Sun.Com
 
 public final class ReaderWriter {
    
The UTF-8 Charset.
 
     public static final Charset UTF8 = Charset.forName("UTF-8");

    
The system property to set the default buffer size for arrays of byte and character.

If the property value is not a positive integer then the default buffer size declared by DEFAULT_BUFFER_SIZE will be utilized.

 
     public static final String BUFFER_SIZE_SYSTEM_PROPERTY =
             "com.sun.jersey.core.util.ReaderWriter.BufferSize";

    
The default buffer size for arrays of byte and character.
 
     public static final int DEFAULT_BUFFER_SIZE = 8192;
    
    
The buffer size for arrays of byte and character.
 
     public static final int BUFFER_SIZE = getBufferSize();
 
 
     private static int getBufferSize() {
         String v = System.getProperty(
                 ,
                 Integer.toString());
         try {
             int i = Integer.valueOf(v);
             if (i <= 0)
                 throw new NumberFormatException();
             return i;
         } catch (NumberFormatException ex) {
            return ;
        }
    }

    
Read bytes from an input stream and write them to an output stream.

Parameters:
in the input stream to read from.
out the output stream to write to.
Throws:
java.io.IOException if there is an error reading or writing bytes.
    public static final void writeTo(InputStream inOutputStream outthrows IOException {
        int read;
        final byte[] data = new byte[];
        while ((read = in.read(data)) != -1)
            out.write(data, 0, read);
    }

    
Read characters from an input stream and write them to an output stream.

Parameters:
in the reader to read from.
out the writer to write to.
Throws:
java.io.IOException if there is an error reading or writing characters.
    public static final void writeTo(Reader inWriter outthrows IOException {
        int read;
        final char[] data = new char[];
        while ((read = in.read(data)) != -1)
            out.write(data, 0, read);
    }

    
Get the character set from a media type.

The character set is obtained from the media type parameter "charset". If the parameter is not present the UTF8 charset is utilized.

Parameters:
m the media type.
Returns:
the character set.
    public static final Charset getCharset(MediaType m) {
        String name = (m == null) ? null : m.getParameters().get("charset");
        return (name == null) ?  : Charset.forName(name);
    }

    
Read the bytes of an input stream and convert to a string.

Parameters:
in the input stream to read from.
type the media type that determines the character set defining how to decode bytes to charaters.
Returns:
the string.
Throws:
java.io.IOException if there is an error reading from the input stream.
    public static final String readFromAsString(InputStream in,
            MediaType typethrows IOException {
        return readFromAsString(new InputStreamReader(ingetCharset(type)));
    }

    
Read the characters of a reader and convert to a string.

Parameters:
reader the reader
Returns:
the string
Throws:
java.io.IOException if there is an error reading from the reader.
    public static final String readFromAsString(Reader readerthrows IOException {
        StringBuilder sb = new StringBuilder();
        char[] c = new char[];
        int l;
        while ((l = reader.read(c)) != -1) {
            sb.append(c, 0, l);
        }
        return sb.toString();
    }

    
Convert a string to bytes and write those bytes to an output stream.

Parameters:
s the string to convert to bytes.
out the output stream to write to.
type the media type that determines the character set defining how to decode bytes to characters.
Throws:
java.io.IOException
    public static final void writeToAsString(String sOutputStream out,
            MediaType typethrows IOException {
        Writer osw = new BufferedWriter(new OutputStreamWriter(out,
                getCharset(type)));
        osw.write(s);
        osw.flush();
    }
New to GrepCode? Check out our FAQ X