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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/*
* XSEC
*
* TXFMChain := List class that holds and manipulates a chain of TXFM
* objects.
*
* Author(s): Berin Lautenbach
*
* $Id$
*
*/
#include <xsec/transformers/TXFMBase.hpp>
#include <xsec/transformers/TXFMChain.hpp>
// -----------------------------------------------------------------------
// deleteTransformChain = easy way to delete an entire chain of transforms
// -----------------------------------------------------------------------
void TXFMChain::deleteTXFMChain(TXFMBase * toDelete) {
if (toDelete != NULL) {
deleteTXFMChain(toDelete->input);
delete toDelete;
}
}
// --------------------------------------------------------------------------------
// Constructors/Destructors
// --------------------------------------------------------------------------------
TXFMChain::TXFMChain(TXFMBase * baseTxfm, bool deleteChainWhenDone) :
mp_currentTxfm(baseTxfm),
m_deleteChainWhenDone(deleteChainWhenDone) {
}
TXFMChain::~TXFMChain() {
if (m_deleteChainWhenDone)
deleteTXFMChain(mp_currentTxfm);
}
// --------------------------------------------------------------------------------
// Read hash
// --------------------------------------------------------------------------------
void TXFMChain::appendTxfm(TXFMBase * txfm) {
TXFMBase * oldTxfm = mp_currentTxfm;
mp_currentTxfm = txfm;
// This may throw an exception, but if it does each TXFM type
// Guarantees that it will have made the input part of the
// chain before such an exception. So the caller can clear out
// the entire chain - including the new txfm - by deleting
// *this.
txfm->setInput(oldTxfm);
}
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