/**
* 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.transport.http.policy.impl;
import javax.xml.namespace.QName;
import org.apache.cxf.message.Message;
import org.apache.cxf.message.MessageUtils;
import org.apache.cxf.policy.PolicyCalculator;
import org.apache.cxf.transports.http.configuration.HTTPServerPolicy;
import org.apache.cxf.transports.http.configuration.ObjectFactory;
public class ServerPolicyCalculator implements PolicyCalculator<HTTPServerPolicy> {
/**
* Returns a new HTTPServerPolicy that is compatible with the two specified
* policies or null if no compatible policy can be determined.
*
* @param p1 one policy
* @param p2 another policy
* @return the compatible policy
*/
public HTTPServerPolicy intersect(HTTPServerPolicy p1, HTTPServerPolicy p2) {
if (!compatible(p1, p2)) {
return null;
}
HTTPServerPolicy p = new HTTPServerPolicy();
if (p1.isSetCacheControl()) {
p.setCacheControl(p1.getCacheControl());
} else if (p2.isSetCacheControl()) {
p.setCacheControl(p2.getCacheControl());
}
p.setContentEncoding(StringUtils.combine(p1.getContentEncoding(), p2.getContentEncoding()));
p.setContentLocation(StringUtils.combine(p1.getContentLocation(), p2.getContentLocation()));
if (p1.isSetContentType()) {
p.setContentType(p1.getContentType());
} else if (p2.isSetContentType()) {
p.setContentType(p2.getContentType());
}
if (p1.isSetHonorKeepAlive()) {
p.setHonorKeepAlive(p1.isHonorKeepAlive());
} else if (p2.isSetHonorKeepAlive()) {
p.setHonorKeepAlive(p2.isHonorKeepAlive());
}
if (p1.isSetKeepAliveParameters()) {
p.setKeepAliveParameters(p1.getKeepAliveParameters());
} else if (p2.isSetKeepAliveParameters()) {
p.setKeepAliveParameters(p2.getKeepAliveParameters());
}
if (p1.isSetReceiveTimeout() || p2.isSetReceiveTimeout()) {
p.setReceiveTimeout(Math.min(p1.getReceiveTimeout(), p2.getReceiveTimeout()));
}
p.setRedirectURL(StringUtils.combine(p1.getRedirectURL(), p2.getRedirectURL()));
p.setServerType(StringUtils.combine(p1.getServerType(), p2.getServerType()));
if (p1.isSetSuppressClientReceiveErrors()) {
p.setSuppressClientReceiveErrors(p1.isSuppressClientReceiveErrors());
} else if (p2.isSetSuppressClientReceiveErrors()) {
p.setSuppressClientReceiveErrors(p2.isSuppressClientReceiveErrors());
}
if (p1.isSetSuppressClientSendErrors()) {
p.setSuppressClientSendErrors(p1.isSuppressClientSendErrors());
} else if (p2.isSetSuppressClientSendErrors()) {
p.setSuppressClientSendErrors(p2.isSuppressClientSendErrors());
}
return p;
}
/**
* Checks if two HTTPServerPolicy objects are compatible.
*
* @param p1 one server policy
* @param p2 another server policy
* @return true iff policies are compatible
*/
public boolean compatible(HTTPServerPolicy p1, HTTPServerPolicy p2) {
if (p1 == p2 || p1.equals(p2)) {
return true;
}
boolean compatible = true;
if (compatible) {
compatible &= !p1.isSetCacheControl() || !p2.isSetCacheControl()
|| p1.getCacheControl().equals(p2.getCacheControl());
}
if (compatible) {
compatible &= StringUtils.compatible(p1.getContentEncoding(), p2.getContentEncoding());
}
if (compatible) {
compatible &= StringUtils.compatible(p1.getContentLocation(), p2.getContentLocation());
}
if (compatible) {
compatible &= StringUtils.compatible(p1.getContentType(), p2.getContentType());
}
if (compatible) {
compatible &= StringUtils.compatible(p1.getRedirectURL(), p2.getRedirectURL());
}
if (compatible) {
compatible &= StringUtils.compatible(p1.getServerType(), p2.getServerType());
}
if (compatible) {
compatible &= p1.isHonorKeepAlive() == p2.isHonorKeepAlive();
}
if (compatible) {
compatible &= p1.isSuppressClientReceiveErrors() == p2.isSuppressClientReceiveErrors();
}
if (compatible) {
compatible &= p1.isSuppressClientSendErrors() == p2.isSuppressClientSendErrors();
}
if (compatible) {
compatible &= StringUtils.compatible(p1.getKeepAliveParameters(), p2.getKeepAliveParameters());
}
return compatible;
}
/**
* Determines if two HTTPServerPolicy objects are equal. REVISIT: Check if
* this can be replaced by a generated equals method.
*
* @param p1 one server policy
* @param p2 another server policy
* @return true iff the two policies are equal
*/
public boolean equals(HTTPServerPolicy p1, HTTPServerPolicy p2) {
if (p1 == p2) {
return true;
}
boolean result = true;
result &= (p1.isHonorKeepAlive() == p2.isHonorKeepAlive())
&& (p1.getCacheControl() == null ? p2.getCacheControl() == null : p1.getCacheControl()
.equals(p2.getCacheControl()))
&& StringUtils.equals(p1.getContentEncoding(), p2.getContentEncoding())
&& StringUtils.equals(p1.getContentLocation(), p2.getContentLocation())
&& StringUtils.equals(p1.getContentType(), p2.getContentType())
&& StringUtils.equals(p1.getKeepAliveParameters(), p2.getKeepAliveParameters());
if (!result) {
return false;
}
result &= (p1.getReceiveTimeout() == p2.getReceiveTimeout())
&& StringUtils.equals(p1.getRedirectURL(), p2.getRedirectURL())
&& StringUtils.equals(p1.getServerType(), p2.getServerType())
&& (p1.isSuppressClientReceiveErrors() == p2.isSuppressClientReceiveErrors())
&& (p1.isSuppressClientSendErrors() == p2.isSuppressClientSendErrors());
return result;
}
public boolean isAsserted(Message message, HTTPServerPolicy policy, HTTPServerPolicy refPolicy) {
return MessageUtils.isOutbound(message) || equals(policy, refPolicy);
}
public Class<HTTPServerPolicy> getDataClass() {
return HTTPServerPolicy.class;
}
public QName getDataClassName() {
return new ObjectFactory().createServer(null).getName();
}
public static String toString(HTTPServerPolicy p) {
StringBuilder buf = new StringBuilder();
buf.append(p);
buf.append("[ContentType=\"");
buf.append(p.getContentType());
buf.append("\", ReceiveTimeout=");
buf.append(p.getReceiveTimeout());
buf.append("])");
return buf.toString();
}
}