001 /**
002 * GRANITE DATA SERVICES
003 * Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004 *
005 * This file is part of Granite Data Services.
006 *
007 * Granite Data Services is free software; you can redistribute it and/or modify
008 * it under the terms of the GNU Library General Public License as published by
009 * the Free Software Foundation; either version 2 of the License, or (at your
010 * option) any later version.
011 *
012 * Granite Data Services is distributed in the hope that it will be useful, but
013 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015 * for more details.
016 *
017 * You should have received a copy of the GNU Library General Public License
018 * along with this library; if not, see <http://www.gnu.org/licenses/>.
019 */
020 package org.granite.client.messaging;
021
022 import java.util.HashSet;
023 import java.util.Set;
024
025 import net.sf.extcos.ComponentQuery;
026 import net.sf.extcos.ComponentScanner;
027 import net.sf.extcos.spi.ResourceAccessor;
028 import net.sf.extcos.spi.ResourceType;
029
030 /**
031 * @author William DRAI
032 */
033 public class ExtCosRemoteAliasScanner implements RemoteAliasScanner {
034
035 public Set<Class<?>> scan(final Set<String> packageNames) {
036 ComponentScanner scanner = new ComponentScanner();
037
038 final String[] basePackageNames = packageNames.toArray(new String[packageNames.size()]);
039
040 Set<Class<?>> remoteClasses = scanner.getClasses(new ComponentQuery() {
041 @Override
042 protected void query() {
043 select(JavaClassResourceType.javaClasses()).from(basePackageNames).returning(allAnnotatedWith(RemoteAlias.class));
044 }
045 });
046
047 Set<Class<?>> annotatedRemoteClasses = new HashSet<Class<?>>();
048 for (Class<?> remoteClass : remoteClasses) {
049 if (remoteClass.isAnnotationPresent(RemoteAlias.class))
050 annotatedRemoteClasses.add(remoteClass);
051 }
052
053 return annotatedRemoteClasses;
054 }
055
056 public static class JavaClassResourceType implements ResourceType {
057
058 private static final String JAVA_CLASS_SUFFIX = "class";
059 private static JavaClassResourceType instance;
060
061 /**
062 * Always instantiate via the {@link #javaClasses()} method.
063 */
064 private JavaClassResourceType() {
065 }
066
067 @Override
068 public String getFileSuffix() {
069 return JAVA_CLASS_SUFFIX;
070 }
071
072 /**
073 * EDSL method
074 */
075 public static JavaClassResourceType javaClasses() {
076 if (instance == null)
077 instance = new JavaClassResourceType();
078
079 return instance;
080 }
081
082 @Override
083 public ResourceAccessor getResourceAccessor() {
084 return new JavaResourceAccessor();
085 }
086 }
087 }