001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common Development
008: * and Distribution License("CDDL") (collectively, the "License"). You
009: * may not use this file except in compliance with the License. You can obtain
010: * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
011: * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
012: * language governing permissions and limitations under the License.
013: *
014: * When distributing the software, include this License Header Notice in each
015: * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
016: * Sun designates this particular file as subject to the "Classpath" exception
017: * as provided by Sun in the GPL Version 2 section of the License file that
018: * accompanied this code. If applicable, add the following below the License
019: * Header, with the fields enclosed by brackets [] replaced by your own
020: * identifying information: "Portions Copyrighted [year]
021: * [name of copyright owner]"
022: *
023: * Contributor(s):
024: *
025: * If you wish your version of this file to be governed by only the CDDL or
026: * only the GPL Version 2, indicate your decision by adding "[Contributor]
027: * elects to include this software in this distribution under the [CDDL or GPL
028: * Version 2] license." If you don't indicate a single choice of license, a
029: * recipient has the option to distribute your version of this file under
030: * either the CDDL, the GPL Version 2 or to extend the choice of license to
031: * its licensees as provided above. However, if you add GPL Version 2 code
032: * and therefore, elected the GPL Version 2 license, then the option applies
033: * only if the new code is made subject to such option by the copyright
034: * holder.
035: */
036:
037: package com.sun.xml.bind.v2.model.annotation;
038:
039: import java.lang.annotation.Annotation;
040:
041: import com.sun.xml.bind.v2.model.core.ErrorHandler;
042: import com.sun.xml.bind.v2.runtime.IllegalAnnotationException;
043:
044: /**
045: * {@link AnnotationReader} that reads annotation from classes,
046: * not from external binding files.
047: *
048: * This is meant to be used as a convenient partial implementation.
049: *
050: * @author Kohsuke Kawaguchi (kk@kohsuke.org)
051: */
052: public abstract class AbstractInlineAnnotationReaderImpl<T, C, F, M>
053: implements AnnotationReader<T, C, F, M> {
054:
055: private ErrorHandler errorHandler;
056:
057: public void setErrorHandler(ErrorHandler errorHandler) {
058: if (errorHandler == null)
059: throw new IllegalArgumentException();
060: this .errorHandler = errorHandler;
061: }
062:
063: /**
064: * Always return a non-null valid {@link ErrorHandler}
065: */
066: public final ErrorHandler getErrorHandler() {
067: assert errorHandler != null : "error handler must be set before use";
068: return errorHandler;
069: }
070:
071: public final <A extends Annotation> A getMethodAnnotation(
072: Class<A> annotation, M getter, M setter, Locatable srcPos) {
073: A a1 = getter == null ? null : getMethodAnnotation(annotation,
074: getter, srcPos);
075: A a2 = setter == null ? null : getMethodAnnotation(annotation,
076: setter, srcPos);
077:
078: if (a1 == null) {
079: if (a2 == null)
080: return null;
081: else
082: return a2;
083: } else {
084: if (a2 == null)
085: return a1;
086: else {
087: // both are present
088: getErrorHandler().error(
089: new IllegalAnnotationException(
090: Messages.DUPLICATE_ANNOTATIONS.format(
091: annotation.getName(),
092: fullName(getter),
093: fullName(setter)), a1, a2));
094: // recover by ignoring one of them
095: return a1;
096: }
097: }
098: }
099:
100: public boolean hasMethodAnnotation(
101: Class<? extends Annotation> annotation,
102: String propertyName, M getter, M setter, Locatable srcPos) {
103: boolean x = (getter != null && hasMethodAnnotation(annotation,
104: getter));
105: boolean y = (setter != null && hasMethodAnnotation(annotation,
106: setter));
107:
108: if (x && y) {
109: // both are present. have getMethodAnnotation report an error
110: getMethodAnnotation(annotation, getter, setter, srcPos);
111: }
112:
113: return x || y;
114: }
115:
116: /**
117: * Gets the fully-qualified name of the method.
118: *
119: * Used for error messages.
120: */
121: protected abstract String fullName(M m);
122: }
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