org.apache.cxf.jaxws.support.ServiceDelegateAccessor Maven / Gradle / Ivy
/**
* 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.support;
import java.lang.reflect.Field;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.xml.ws.Service;
import javax.xml.ws.WebServiceException;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.jaxws.ServiceImpl;
/**
* A utility that allows access to the 'private' implementation specific delegate
* of a Service. Usefull when extensions to the JAXWS Service supported methods
* are required.
*/
public final class ServiceDelegateAccessor {
private static final Logger LOG = LogUtils.getL7dLogger(ServiceDelegateAccessor.class);
private static final String DELEGATE_FIELD_NAME = "delegate";
private static final String DELEGATE_FIELD_NAME2 = "_delegate";
private ServiceDelegateAccessor() {
}
/**
* Get the delegate reference from the Service private field. This method
* uses Field.setAccessible() which, in the presence of a SecurityManager,
* requires the suppressAccessChecks permission
*
* @param service the taraget service
* @return the implementation delegate
* @throws WebServiceException if access to the field fails for any reason
*/
public static ServiceImpl get(Service service) {
ServiceImpl delegate = null;
try {
Field delegateField = Service.class.getDeclaredField(DELEGATE_FIELD_NAME);
delegateField.setAccessible(true);
delegate = (ServiceImpl)delegateField.get(service);
} catch (Exception e) {
try {
Field delegateField = Service.class.getDeclaredField(DELEGATE_FIELD_NAME2);
delegateField.setAccessible(true);
delegate = (ServiceImpl)delegateField.get(service);
} catch (Exception e2) {
WebServiceException wse = new WebServiceException("Failed to access Field named "
+ DELEGATE_FIELD_NAME
+ " of Service instance "
+ service, e);
LOG.log(Level.SEVERE, e.getMessage(), e);
throw wse;
}
}
return delegate;
}
}