aoqi@0: /*
aoqi@0:  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: package com.sun.xml.internal.bind.v2.model.annotation;
aoqi@0: 
aoqi@0: import java.lang.annotation.Annotation;
aoqi@0: 
aoqi@0: import com.sun.xml.internal.bind.v2.model.core.ErrorHandler;
aoqi@0: import com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationException;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * {@link AnnotationReader} that reads annotation from classes,
aoqi@0:  * not from external binding files.
aoqi@0:  *
aoqi@0:  * This is meant to be used as a convenient partial implementation.
aoqi@0:  *
aoqi@0:  * @author Kohsuke Kawaguchi (kk@kohsuke.org)
aoqi@0:  */
aoqi@0: public abstract class AbstractInlineAnnotationReaderImpl<T,C,F,M>
aoqi@0:     implements AnnotationReader<T,C,F,M> {
aoqi@0: 
aoqi@0:     private ErrorHandler errorHandler;
aoqi@0: 
aoqi@0:     public void setErrorHandler(ErrorHandler errorHandler) {
aoqi@0:         if(errorHandler==null)
aoqi@0:             throw new IllegalArgumentException();
aoqi@0:         this.errorHandler = errorHandler;
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Always return a non-null valid {@link ErrorHandler}
aoqi@0:      */
aoqi@0:     public final ErrorHandler getErrorHandler() {
aoqi@0:         assert errorHandler!=null : "error handler must be set before use";
aoqi@0:         return errorHandler;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public final <A extends Annotation> A getMethodAnnotation(Class<A> annotation, M getter, M setter, Locatable srcPos) {
aoqi@0:         A a1 = getter==null?null:getMethodAnnotation(annotation,getter,srcPos);
aoqi@0:         A a2 = setter==null?null:getMethodAnnotation(annotation,setter,srcPos);
aoqi@0: 
aoqi@0:         if(a1==null) {
aoqi@0:             if(a2==null)
aoqi@0:                 return null;
aoqi@0:             else
aoqi@0:                 return a2;
aoqi@0:         } else {
aoqi@0:             if(a2==null)
aoqi@0:                 return a1;
aoqi@0:             else {
aoqi@0:                 // both are present
aoqi@0:                 getErrorHandler().error(new IllegalAnnotationException(
aoqi@0:                     Messages.DUPLICATE_ANNOTATIONS.format(
aoqi@0:                         annotation.getName(), fullName(getter),fullName(setter)),
aoqi@0:                     a1, a2 ));
aoqi@0:                 // recover by ignoring one of them
aoqi@0:                 return a1;
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public boolean hasMethodAnnotation(Class<? extends Annotation> annotation, String propertyName, M getter, M setter, Locatable srcPos) {
aoqi@0:         boolean x = ( getter != null && hasMethodAnnotation(annotation, getter) );
aoqi@0:         boolean y = ( setter != null && hasMethodAnnotation(annotation, setter) );
aoqi@0: 
aoqi@0:         if(x && y) {
aoqi@0:             // both are present. have getMethodAnnotation report an error
aoqi@0:             getMethodAnnotation(annotation,getter,setter,srcPos);
aoqi@0:         }
aoqi@0: 
aoqi@0:         return x||y;
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Gets the fully-qualified name of the method.
aoqi@0:      *
aoqi@0:      * Used for error messages.
aoqi@0:      */
aoqi@0:     protected abstract String fullName(M m);
aoqi@0: }