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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.netbeans.modules.j2ee.ejbverification.rules;
import com.sun.source.tree.Tree;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.TreeSet;
import javax.lang.model.element.AnnotationMirror;
import javax.lang.model.element.AnnotationValue;
import javax.lang.model.element.TypeElement;
import javax.lang.model.type.TypeMirror;
import org.netbeans.modules.j2ee.dd.api.ejb.Session;
import org.netbeans.modules.j2ee.ejbverification.EJBAPIAnnotations;
import org.netbeans.modules.j2ee.ejbverification.EJBProblemContext;
import org.netbeans.modules.j2ee.ejbverification.HintsUtils;
import org.netbeans.modules.j2ee.ejbverification.JavaUtils;
import org.netbeans.spi.editor.hints.ErrorDescription;
import org.netbeans.spi.editor.hints.Severity;
import org.netbeans.spi.java.hints.Hint;
import org.netbeans.spi.java.hints.HintContext;
import org.netbeans.spi.java.hints.TriggerTreeKind;
import org.openide.util.NbBundle;
/**
* In EJB 3.0, it is recommended that a bean class implements its business interface.
* That way, user does not have to worry about method matching, compiler will take care of that.
*
* @author Tomasz.Slota@Sun.COM, Martin Fousek <marfous@netbeans.org>
*/
@Hint(displayName = "#BeanImplementsBI.display.name",
description = "#BeanImplementsBI.err",
id = "o.n.m.j2ee.ejbverification.BeanImplementsBI",
category = "javaee/ejb",
enabled = true,
suppressWarnings = "BeanImplementsBI")
@NbBundle.Messages({
"BeanImplementsBI.display.name=Bean doesn't implement business interface",
"BeanImplementsBI.err=It is recommended that a bean class implement its business interface."
})
public final class BeanImplementsBI {
private BeanImplementsBI() {
}
@TriggerTreeKind(Tree.Kind.CLASS)
public static Collection<ErrorDescription> run(HintContext hintContext) {
final List<ErrorDescription> problems = new ArrayList<>();
final EJBProblemContext ctx = HintsUtils.getOrCacheContext(hintContext);
if (ctx != null && ctx.getEjb() instanceof Session) {
Collection<String> businessInterFaces = new ArrayList<>();
processAnnotation(businessInterFaces, ctx.getClazz(), EJBAPIAnnotations.LOCAL);
processAnnotation(businessInterFaces, ctx.getClazz(), EJBAPIAnnotations.REMOTE);
if (businessInterFaces.size() > 0) {
Collection<String> implementedInterfaces = new TreeSet<>();
for (TypeMirror interfaceType : ctx.getClazz().getInterfaces()) {
String iface = JavaUtils.extractClassNameFromType(interfaceType);
if (iface != null) {
implementedInterfaces.add(iface);
}
}
for (String businessInterface : businessInterFaces) {
if (!implementedInterfaces.contains(businessInterface)) {
ErrorDescription err = HintsUtils.createProblem(ctx.getClazz(), hintContext.getInfo(),
Bundle.BeanImplementsBI_err(), Severity.WARNING);
return Collections.singletonList(err);
}
}
}
}
return problems;
}
private static void processAnnotation(Collection<String> businessInterFaces, TypeElement clazz, String annotClass) {
AnnotationMirror annLocal = JavaUtils.findAnnotation(clazz, annotClass);
AnnotationValue value = JavaUtils.getAnnotationAttrValue(annLocal, EJBAPIAnnotations.VALUE);
if (value != null) {
for (AnnotationValue ifaceAttr : (List<? extends AnnotationValue>) value.getValue()) {
if (ifaceAttr.getValue() instanceof TypeMirror) {
String className = JavaUtils.extractClassNameFromType((TypeMirror) ifaceAttr.getValue());
businessInterFaces.add(className);
}
}
}
}
}