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/*******************************************************************************
* ============LICENSE_START====================================================
* * org.onap.aaf
* * ===========================================================================
* * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* * ===========================================================================
* * Licensed 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.
* * ============LICENSE_END====================================================
* *
* * ECOMP is a trademark and service mark of AT&T Intellectual Property.
* *
******************************************************************************/
package org.onap.aaf.cssa.rserv;
import java.io.IOException;
import java.security.Principal;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import org.onap.aaf.inno.env.TimeTaken;
import org.onap.aaf.inno.env.TransStore;
/**
* Create a new Transaction Object for each and every incoming Transaction
*
* Attach to Request. User "FilterHolder" mechanism to retain single instance.
*
* TransFilter includes CADIFilter as part of the package, so that it can
* set User Data, etc, as necessary.
*
*
*/
public abstract class TransOnlyFilter<TRANS extends TransStore> implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
protected abstract TRANS newTrans();
protected abstract TimeTaken start(TRANS trans, ServletRequest request);
protected abstract void authenticated(TRANS trans, Principal p);
protected abstract void tallyHo(TRANS trans);
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
TRANS trans = newTrans();
TimeTaken overall = start(trans,request);
try {
request.setAttribute(TransFilter.TRANS_TAG, trans);
chain.doFilter(request, response);
} finally {
overall.done();
}
tallyHo(trans);
}
@Override
public void destroy() {
};
}
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