openwfe.org.misc.IoUtils Maven / Gradle / Ivy
/*
* Copyright (c) 2001-2006, John Mettraux, OpenWFE.org
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* . Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* . Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* . Neither the name of the "OpenWFE" nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* $Id: IoUtils.java 2587 2006-05-09 09:15:59Z jmettraux $
*/
//
// IoUtils.java
//
// [email protected]
//
// generated with
// jtmpl 1.1.01 2004/05/19 ([email protected])
//
package openwfe.org.misc;
import java.nio.ByteBuffer;
import java.nio.channels.ReadableByteChannel;
/**
* Utility method for IO operations.
*
* CVS Info :
*
$Author: jmettraux $
*
$Id: IoUtils.java 2587 2006-05-09 09:15:59Z jmettraux $
*
* @author [email protected]
*/
public abstract class IoUtils
{
private final static org.apache.log4j.Logger log = org.apache.log4j.Logger
.getLogger(IoUtils.class.getName());
//
// STATIC METHODS
/**
* Reads and return one byte (char?) from the given InputStream or
* ReadableByteChannel instance.
*/
public static int read (final Object o)
throws java.io.IOException
{
if (o instanceof ReadableByteChannel)
{
final ReadableByteChannel channel = (ReadableByteChannel)o;
final ByteBuffer bb = ByteBuffer.allocate(1);
final int readCount = channel.read(bb);
if (readCount < 1) return readCount;
bb.flip();
return bb.get();
}
if (o instanceof java.io.InputStream)
{
return ((java.io.InputStream)o).read();
}
log.warn
("read() cannot handle instance of class "+o.getClass().getName());
return -1;
}
}