/**
* 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.
*/
package org.apache.cxf.ws.rm.policy;
import java.util.ArrayList;
import java.util.Collection;
import org.apache.cxf.message.Message;
import org.apache.cxf.ws.policy.AssertionInfo;
import org.apache.cxf.ws.policy.AssertionInfoMap;
import org.apache.cxf.ws.policy.builder.jaxb.JaxbAssertion;
import org.apache.cxf.ws.rm.RM10Constants;
import org.apache.cxf.ws.rm.RM11Constants;
import org.apache.cxf.ws.rmp.v200502.RMAssertion;
import org.apache.cxf.ws.rmp.v200502.RMAssertion.AcknowledgementInterval;
import org.apache.cxf.ws.rmp.v200502.RMAssertion.BaseRetransmissionInterval;
import org.apache.cxf.ws.rmp.v200502.RMAssertion.InactivityTimeout;
/**
*
*/
public final class RM10PolicyUtils {
/**
* Prevents instantiation.
*
*/
private RM10PolicyUtils() {
}
/**
* Collect RMAssertions from map. This checks both namespaces defined for WS-RM policy assertions.
*
* @param aim map, may be <code>null</code>
* @return merged collection, never <code>null</code>
*/
public static Collection<AssertionInfo> collectRMAssertions(AssertionInfoMap aim) {
Collection<AssertionInfo> mergedAsserts = new ArrayList<AssertionInfo>();
if (aim != null) {
Collection<AssertionInfo> ais = aim.get(RM10Constants.WSRMP_RMASSERTION_QNAME);
if (ais != null) {
mergedAsserts.addAll(ais);
}
ais = aim.get(RM11Constants.WSRMP_RMASSERTION_QNAME);
if (ais != null) {
mergedAsserts.addAll(ais);
}
}
return mergedAsserts;
}
/**
* Returns an RMAssertion that is compatible with the default value
* and all RMAssertions pertaining to the message (can never be null).
*
* @param rma the default value
* @param message the message
* @return the compatible RMAssertion
*/
public static RMAssertion getRMAssertion(RMAssertion defaultValue, Message message) {
RMAssertion compatible = defaultValue;
Collection<AssertionInfo> ais = collectRMAssertions(message.get(AssertionInfoMap.class));
for (AssertionInfo ai : ais) {
JaxbAssertion<RMAssertion> ja = getAssertion(ai);
RMAssertion rma = ja.getData();
compatible = null == defaultValue ? rma : intersect(compatible, rma);
}
return compatible;
}
public static RMAssertion intersect(RMAssertion a, RMAssertion b) {
if (equals(a, b)) {
return a;
}
RMAssertion compatible = new RMAssertion();
// use maximum of inactivity timeout
Long aval = null;
if (null != a.getInactivityTimeout()) {
aval = a.getInactivityTimeout().getMilliseconds();
}
Long bval = null;
if (null != b.getInactivityTimeout()) {
bval = b.getInactivityTimeout().getMilliseconds();
}
if (null != aval || null != bval) {
InactivityTimeout ia = new RMAssertion.InactivityTimeout();
if (null != aval && null != bval) {
ia.setMilliseconds(bval);
} else {
ia.setMilliseconds(aval != null ? aval : bval);
}
compatible.setInactivityTimeout(ia);
}
// use minimum of base retransmission interval
aval = null;
if (null != a.getBaseRetransmissionInterval()) {
aval = a.getBaseRetransmissionInterval().getMilliseconds();
}
bval = null;
if (null != b.getBaseRetransmissionInterval()) {
bval = b.getBaseRetransmissionInterval().getMilliseconds();
}
if (null != aval || null != bval) {
BaseRetransmissionInterval bri = new RMAssertion.BaseRetransmissionInterval();
if (null != aval && null != bval) {
bri.setMilliseconds(bval);
} else {
bri.setMilliseconds(aval != null ? aval : bval);
}
compatible.setBaseRetransmissionInterval(bri);
}
// use minimum of acknowledgement interval
aval = null;
if (null != a.getAcknowledgementInterval()) {
aval = a.getAcknowledgementInterval().getMilliseconds();
}
bval = null;
if (null != b.getAcknowledgementInterval()) {
bval = b.getAcknowledgementInterval().getMilliseconds();
}
if (null != aval || null != bval) {
AcknowledgementInterval ai = new RMAssertion.AcknowledgementInterval();
if (null != aval && null != bval) {
ai.setMilliseconds(bval);
} else {
ai.setMilliseconds(aval != null ? aval : bval);
}
compatible.setAcknowledgementInterval(ai);
}
// backoff parameter
if (null != a.getExponentialBackoff() || null != b.getExponentialBackoff()) {
compatible.setExponentialBackoff(new RMAssertion.ExponentialBackoff());
}
return compatible;
}
public static boolean equals(RMAssertion a, RMAssertion b) {
if (a == b) {
return true;
}
Long aval = null;
if (null != a.getInactivityTimeout()) {
aval = a.getInactivityTimeout().getMilliseconds();
}
Long bval = null;
if (null != b.getInactivityTimeout()) {
bval = b.getInactivityTimeout().getMilliseconds();
}
if (!equals(aval, bval)) {
return false;
}
aval = null;
if (null != a.getBaseRetransmissionInterval()) {
aval = a.getBaseRetransmissionInterval().getMilliseconds();
}
bval = null;
if (null != b.getBaseRetransmissionInterval()) {
bval = b.getBaseRetransmissionInterval().getMilliseconds();
}
if (!equals(aval, bval)) {
return false;
}
aval = null;
if (null != a.getAcknowledgementInterval()) {
aval = a.getAcknowledgementInterval().getMilliseconds();
}
bval = null;
if (null != b.getAcknowledgementInterval()) {
bval = b.getAcknowledgementInterval().getMilliseconds();
}
if (!equals(aval, bval)) {
return false;
}
return null == a.getExponentialBackoff()
? null == b.getExponentialBackoff()
: null != b.getExponentialBackoff();
}
private static boolean equals(Long aval, Long bval) {
if (null != aval) {
if (null != bval) {
if (!aval.equals(bval)) {
return false;
}
} else {
return false;
}
} else {
if (null != bval) {
return false;
}
return true;
}
return true;
}
@SuppressWarnings("unchecked")
private static JaxbAssertion<RMAssertion> getAssertion(AssertionInfo ai) {
return (JaxbAssertion<RMAssertion>)ai.getAssertion();
}
}