ohair@286: /*
mkos@418:  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
ohair@286:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ohair@286:  *
ohair@286:  * This code is free software; you can redistribute it and/or modify it
ohair@286:  * under the terms of the GNU General Public License version 2 only, as
ohair@286:  * published by the Free Software Foundation.  Oracle designates this
ohair@286:  * particular file as subject to the "Classpath" exception as provided
ohair@286:  * by Oracle in the LICENSE file that accompanied this code.
ohair@286:  *
ohair@286:  * This code is distributed in the hope that it will be useful, but WITHOUT
ohair@286:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ohair@286:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
ohair@286:  * version 2 for more details (a copy is included in the LICENSE file that
ohair@286:  * accompanied this code).
ohair@286:  *
ohair@286:  * You should have received a copy of the GNU General Public License version
ohair@286:  * 2 along with this work; if not, write to the Free Software Foundation,
ohair@286:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ohair@286:  *
ohair@286:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@286:  * or visit www.oracle.com if you need additional information or have any
ohair@286:  * questions.
ohair@286:  */
ohair@286: 
ohair@286: package com.sun.xml.internal.ws.api.server;
ohair@286: 
ohair@286: import com.sun.istack.internal.Nullable;
alanb@368: import com.sun.istack.internal.localization.Localizable;
ohair@286: import com.sun.xml.internal.ws.api.server.InstanceResolver;
ohair@286: import com.sun.xml.internal.ws.api.server.ResourceInjector;
ohair@286: import com.sun.xml.internal.ws.api.server.WSEndpoint;
ohair@286: import com.sun.xml.internal.ws.resources.ServerMessages;
ohair@286: import com.sun.xml.internal.ws.server.ServerRtException;
ohair@286: 
ohair@286: import java.lang.annotation.Annotation;
ohair@286: import java.lang.reflect.InvocationTargetException;
ohair@286: import java.lang.reflect.Method;
ohair@286: import java.security.AccessController;
ohair@286: import java.security.PrivilegedAction;
ohair@286: 
ohair@286: /**
ohair@286:  * Partial implementation of {@link InstanceResolver} with
ohair@286:  * convenience methods to do the resource injection.
ohair@286:  *
ohair@286:  * @author Kohsuke Kawaguchi
ohair@286:  * @since 2.2.6
ohair@286:  */
ohair@286: public abstract class AbstractInstanceResolver<T> extends InstanceResolver<T> {
ohair@286: 
ohair@286:     protected static ResourceInjector getResourceInjector(WSEndpoint endpoint) {
ohair@286:         ResourceInjector ri = endpoint.getContainer().getSPI(ResourceInjector.class);
ohair@286:         if(ri==null)
ohair@286:             ri = ResourceInjector.STANDALONE;
ohair@286:         return ri;
ohair@286:     }
ohair@286: 
ohair@286:     /**
ohair@286:      * Helper for invoking a method with elevated privilege.
ohair@286:      */
ohair@286:     protected static void invokeMethod(final @Nullable Method method, final Object instance, final Object... args) {
ohair@286:         if(method==null)    return;
ohair@286:         AccessController.doPrivileged(new PrivilegedAction<Void>() {
ohair@286:             public Void run() {
ohair@286:                 try {
ohair@286:                     if (!method.isAccessible()) {
ohair@286:                         method.setAccessible(true);
ohair@286:                     }
mkos@418:                     MethodUtil.invoke(instance,method, args);
ohair@286:                 } catch (IllegalAccessException e) {
ohair@286:                     throw new ServerRtException("server.rt.err",e);
ohair@286:                 } catch (InvocationTargetException e) {
ohair@286:                     throw new ServerRtException("server.rt.err",e);
ohair@286:                 }
ohair@286:                 return null;
ohair@286:             }
ohair@286:         });
ohair@286:     }
ohair@286: 
ohair@286:     /**
ohair@286:      * Finds the method that has the given annotation, while making sure that
ohair@286:      * there's only at most one such method.
ohair@286:      */
ohair@286:     protected final @Nullable Method findAnnotatedMethod(Class clazz, Class<? extends Annotation> annType) {
ohair@286:         boolean once = false;
ohair@286:         Method r = null;
ohair@286:         for(Method method : clazz.getDeclaredMethods()) {
ohair@286:             if (method.getAnnotation(annType) != null) {
ohair@286:                 if (once)
ohair@286:                     throw new ServerRtException(ServerMessages.ANNOTATION_ONLY_ONCE(annType));
ohair@286:                 if (method.getParameterTypes().length != 0)
ohair@286:                     throw new ServerRtException(ServerMessages.NOT_ZERO_PARAMETERS(method));
ohair@286:                 r = method;
ohair@286:                 once = true;
ohair@286:             }
ohair@286:         }
ohair@286:         return r;
ohair@286:     }
ohair@286: }