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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.
*/
package org.apache.cxf.jaxws.handler;
import java.net.URL;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.ArrayList;
import java.util.List;
import java.util.ResourceBundle;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.jws.HandlerChain;
import javax.jws.WebService;
import javax.xml.namespace.QName;
import javax.xml.ws.WebServiceException;
import javax.xml.ws.handler.Handler;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.apache.cxf.Bus;
import org.apache.cxf.common.classloader.ClassLoaderUtils;
import org.apache.cxf.common.i18n.BundleUtils;
import org.apache.cxf.common.i18n.Message;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.common.util.StringUtils;
import org.apache.cxf.staxutils.StaxUtils;
@SuppressWarnings("rawtypes")
public class AnnotationHandlerChainBuilder extends HandlerChainBuilder {
private static final Logger LOG = LogUtils.getL7dLogger(AnnotationHandlerChainBuilder.class);
private static final ResourceBundle BUNDLE = LOG.getResourceBundle();
public AnnotationHandlerChainBuilder() {
}
public AnnotationHandlerChainBuilder(Bus bus) {
super(bus);
}
/**
* @param clz
* @param existingHandlers
* @return
*/
public List buildHandlerChainFromClass(Class clz, List existingHandlers,
QName portQName, QName serviceQName, String bindingID) {
LOG.fine("building handler chain");
HandlerChainAnnotation hcAnn = findHandlerChainAnnotation(clz, true);
List chain = null;
if (hcAnn == null) {
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("no HandlerChain annotation on " + clz);
}
chain = new ArrayList<>();
} else {
hcAnn.validate();
try {
URL handlerFileURL = resolveHandlerChainFile(clz, hcAnn.getFileName());
if (handlerFileURL == null) {
throw new WebServiceException(new Message("HANDLER_CFG_FILE_NOT_FOUND_EXC", BUNDLE, hcAnn
.getFileName()).toString());
}
Document doc = StaxUtils.read(handlerFileURL.openStream());
Element el = doc.getDocumentElement();
boolean isJavaEENamespace = JavaeeHandlerChainBuilder.JAVAEE_NS.equals(el.getNamespaceURI());
boolean isJakartaEENamespace = JakartaeeHandlerChainBuilder.JAKARTAEE_NS.equals(el.getNamespaceURI());
if (!isJavaEENamespace && !isJakartaEENamespace) {
throw new WebServiceException(
BundleUtils.getFormattedString(BUNDLE,
"NOT_VALID_NAMESPACE",
el.getNamespaceURI()));
}
final ClassLoader classLoader = getClassLoader(clz);
final DelegatingHandlerChainBuilder delegate = ht -> buildHandlerChain(ht, classLoader);
if (isJavaEENamespace) {
chain = new JavaeeHandlerChainBuilder(BUNDLE, handlerFileURL, delegate)
.build(el, portQName, serviceQName, bindingID);
} else {
chain = new JakartaeeHandlerChainBuilder(BUNDLE, handlerFileURL, delegate)
.build(el, portQName, serviceQName, bindingID);
}
} catch (WebServiceException e) {
throw e;
} catch (Exception e) {
throw new WebServiceException(BUNDLE.getString("CHAIN_NOT_SPECIFIED_EXC"), e);
}
}
assert chain != null;
if (existingHandlers != null) {
chain.addAll(existingHandlers);
}
return sortHandlers(chain);
}
private static ClassLoader getClassLoader(final Class clazz) {
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
return AccessController.doPrivileged(new PrivilegedAction() {
public ClassLoader run() {
return clazz.getClassLoader();
}
});
}
return clazz.getClassLoader();
}
public List buildHandlerChainFromClass(Class clz, QName portQName, QName serviceQName,
String bindingID) {
return buildHandlerChainFromClass(clz, null, portQName, serviceQName, bindingID);
}
protected URL resolveHandlerChainAnnotationFile(Class clazz, String name) {
return clazz.getResource(name);
}
private HandlerChainAnnotation findHandlerChainAnnotation(Class clz, boolean searchSEI) {
if (clz == null) {
return null;
}
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Checking for HandlerChain annotation on " + clz.getName());
}
HandlerChainAnnotation hcAnn = null;
HandlerChain ann = clz.getAnnotation(HandlerChain.class);
if (ann == null) {
if (searchSEI) {
/* HandlerChain annotation can be specified on the SEI
* but the implementation bean might not implement the SEI.
*/
WebService ws = clz.getAnnotation(WebService.class);
if (ws != null && !StringUtils.isEmpty(ws.endpointInterface())) {
String seiClassName = ws.endpointInterface().trim();
Class seiClass = null;
try {
seiClass = ClassLoaderUtils.loadClass(seiClassName, clz);
} catch (ClassNotFoundException e) {
throw new WebServiceException(BUNDLE.getString("SEI_LOAD_FAILURE_EXC"), e);
}
// check SEI class and its interfaces for HandlerChain annotation
hcAnn = findHandlerChainAnnotation(seiClass, false);
}
}
if (hcAnn == null) {
// check interfaces for HandlerChain annotation
for (Class iface : clz.getInterfaces()) {
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Checking for HandlerChain annotation on " + iface.getName());
}
ann = iface.getAnnotation(HandlerChain.class);
if (ann != null) {
hcAnn = new HandlerChainAnnotation(ann, iface);
break;
}
}
if (hcAnn == null) {
hcAnn = findHandlerChainAnnotation(clz.getSuperclass(), false);
}
}
} else {
hcAnn = new HandlerChainAnnotation(ann, clz);
}
return hcAnn;
}
static class HandlerChainAnnotation {
private final Class declaringClass;
private final HandlerChain ann;
HandlerChainAnnotation(HandlerChain hc, Class clz) {
ann = hc;
declaringClass = clz;
}
public Class getDeclaringClass() {
return declaringClass;
}
public String getFileName() {
return ann.file();
}
public void validate() {
if (null == ann.file() || "".equals(ann.file())) {
throw new WebServiceException(BUNDLE.getString("ANNOTATION_WITHOUT_URL_EXC"));
}
}
public String toString() {
return "[" + declaringClass + "," + ann + "]";
}
}
}
