/* Copyright (c) 2001-2009, The HSQL Development Group
* 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 HSQL Development Group 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 HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
* 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.
*/
package org.hsqldb.lib;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
import java.io.Serializable;
/**
* Input / Output utility
*
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 1.8.0
* @since 1.7.2
*/
public class InOutUtil {
/**
* Implementation only supports unix line-end format and is suitable for
* processing HTTP and other network protocol communications. Reads and writes
* a line of data. Returns the number of bytes read/written.
*/
public static int readLine(InputStream in,
OutputStream out) throws IOException {
int count = 0;
for (;;) {
int b = in.read();
if (b == -1) {
break;
}
count++;
out.write(b);
if (b == '\n') {
break;
}
}
return count;
}
/**
* Retrieves the serialized form of the specified <CODE>Object</CODE>
* as an array of bytes.
*
* @param s the Object to serialize
* @return a static byte array representing the passed Object
*/
public static byte[] serialize(Serializable s) throws IOException {
HsqlByteArrayOutputStream bo = new HsqlByteArrayOutputStream();
ObjectOutputStream os = new ObjectOutputStream(bo);
os.writeObject(s);
return bo.toByteArray();
}
/**
* Deserializes the specified byte array to an
* <CODE>Object</CODE> instance.
*
* @return the Object resulting from deserializing the specified array of bytes
* @param ba the byte array to deserialize to an Object
*/
public static Serializable deserialize(byte[] ba)
throws IOException, ClassNotFoundException {
HsqlByteArrayInputStream bi = new HsqlByteArrayInputStream(ba);
ObjectInputStream is = new ObjectInputStream(bi);
return (Serializable) is.readObject();
}
}