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/*
* ====================================================================
* Project: openMDX/Core, http://www.openmdx.org/
* Description: Base64 Input Stream
* Owner: OMEX AG, Switzerland, http://www.omex.ch
* ====================================================================
*
* This software is published under the BSD license as listed below.
*
* Copyright (c) 2010, OMEX AG, Switzerland
* 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 openMDX team 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.
*
* ------------------
*
* This product includes software developed by other organizations as
* listed in the NOTICE file.
*/
package org.openmdx.base.io;
import java.io.ByteArrayInputStream;
import org.openmdx.base.exception.ServiceException;
import org.openmdx.base.text.conversion.Base64;
import org.openmdx.kernel.exception.BasicException;
/**
* Base64 Input Stream
*/
public class Base64InputStream extends ByteArrayInputStream {
/**
* Constructor
*
* @param data BASE64 encoded data
*/
public Base64InputStream(
String data
) {
super(Base64.decode(data));
}
/**
* Constructor
*
* @param data BASE64 encoded data
* @param offset
* @param length
*/
public Base64InputStream(
char[] data,
int offset,
int length
) {
super(Base64.decode(data, offset, length));
}
/**
* Convenience method to decode a single object
*
* @param data a base64 encoded object
*
* @return the deserialized object
*
* @throws ServiceException
*/
public static Object decode(
String data
) throws ServiceException{
try {
return data == null || "".equals(data) ? null : new java.io.ObjectInputStream(
new Base64InputStream(data)
).readObject();
} catch (Exception exception) {
throw new ServiceException(
exception,
BasicException.Code.DEFAULT_DOMAIN,
BasicException.Code.TRANSFORMATION_FAILURE,
"Base-64 decoding failed",
new BasicException.Parameter("encoded", data)
);
}
}
}
