001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.repository.registry;
016    
017    import com.liferay.portal.kernel.concurrent.ConcurrentHashSet;
018    import com.liferay.portal.kernel.repository.RepositoryFactory;
019    import com.liferay.portal.kernel.repository.registry.RepositoryDefiner;
020    import com.liferay.portal.kernel.util.PortalClassLoaderUtil;
021    import com.liferay.portal.repository.external.LegacyExternalRepositoryDefiner;
022    import com.liferay.portal.repository.util.ExternalRepositoryFactory;
023    import com.liferay.portal.repository.util.ExternalRepositoryFactoryImpl;
024    import com.liferay.portal.repository.util.ExternalRepositoryFactoryUtil;
025    import com.liferay.portal.util.PropsValues;
026    import com.liferay.registry.Registry;
027    import com.liferay.registry.RegistryUtil;
028    import com.liferay.registry.ServiceReference;
029    import com.liferay.registry.ServiceRegistration;
030    import com.liferay.registry.ServiceTracker;
031    import com.liferay.registry.ServiceTrackerCustomizer;
032    import com.liferay.registry.collections.StringServiceRegistrationMap;
033    
034    import java.util.Collection;
035    import java.util.List;
036    import java.util.Map;
037    import java.util.Set;
038    import java.util.concurrent.ConcurrentHashMap;
039    
040    /**
041     * @author Adolfo P??rez
042     */
043    public class RepositoryClassDefinitionCatalogImpl
044            implements RepositoryClassDefinitionCatalog {
045    
046            @Override
047            public Collection<String> getExternalRepositoryClassNames() {
048                    return _externalRepositoriesClassNames;
049            }
050    
051            @Override
052            public RepositoryClassDefinition getRepositoryClassDefinition(
053                    String className) {
054    
055                    return _repositoryClassDefinitions.get(className);
056            }
057    
058            public void loadDefaultRepositoryDefiners() {
059                    Registry registry = RegistryUtil.getRegistry();
060    
061                    _serviceTracker = registry.trackServices(
062                            RepositoryDefiner.class,
063                            new RepositoryDefinerServiceTrackerCustomizer());
064    
065                    _serviceTracker.open();
066    
067                    for (RepositoryDefiner repositoryDefiner : _repositoryDefiners) {
068                            registerRepositoryDefiner(repositoryDefiner);
069                    }
070    
071                    ClassLoader classLoader = PortalClassLoaderUtil.getClassLoader();
072    
073                    for (String className : PropsValues.DL_REPOSITORY_IMPL) {
074                            ExternalRepositoryFactory externalRepositoryFactory =
075                                    new ExternalRepositoryFactoryImpl(className, classLoader);
076    
077                            registerLegacyExternalRepositoryFactory(
078                                    className, externalRepositoryFactory);
079                    }
080            }
081    
082            @Override
083            public void registerLegacyExternalRepositoryFactory(
084                    String className, ExternalRepositoryFactory externalRepositoryFactory) {
085    
086                    ExternalRepositoryFactoryUtil.registerExternalRepositoryFactory(
087                            className, externalRepositoryFactory);
088    
089                    RepositoryDefiner repositoryDefiner =
090                            new LegacyExternalRepositoryDefiner(
091                                    className, _legacyExternalRepositoryFactory);
092    
093                    ServiceRegistration<RepositoryDefiner> serviceRegistration =
094                            registerRepositoryDefiner(repositoryDefiner);
095    
096                    _serviceRegistrations.put(className, serviceRegistration);
097            }
098    
099            public void setLegacyExternalRepositoryFactory(
100                    RepositoryFactory legacyExternalRepositoryFactory) {
101    
102                    _legacyExternalRepositoryFactory = legacyExternalRepositoryFactory;
103            }
104    
105            public void setRepositoryDefiners(
106                    List<RepositoryDefiner> repositoryDefiners) {
107    
108                    _repositoryDefiners = repositoryDefiners;
109            }
110    
111            @Override
112            public void unregisterLegacyExternalRepositoryFactory(String className) {
113                    ExternalRepositoryFactoryUtil.unregisterExternalRepositoryFactory(
114                            className);
115    
116                    ServiceRegistration<RepositoryDefiner> serviceRegistration =
117                            _serviceRegistrations.remove(className);
118    
119                    serviceRegistration.unregister();
120    
121                    unregisterRepositoryDefiner(className);
122            }
123    
124            protected ServiceRegistration<RepositoryDefiner>
125                    registerRepositoryDefiner(
126                            RepositoryDefiner repositoryDefiner) {
127    
128                    Registry registry = RegistryUtil.getRegistry();
129    
130                    return registry.registerService(
131                            RepositoryDefiner.class, repositoryDefiner);
132            }
133    
134            protected void unregisterRepositoryDefiner(String className) {
135                    _externalRepositoriesClassNames.remove(className);
136    
137                    _repositoryClassDefinitions.remove(className);
138            }
139    
140            private final Set<String> _externalRepositoriesClassNames =
141                    new ConcurrentHashSet<String>();
142            private RepositoryFactory _legacyExternalRepositoryFactory;
143            private final Map<String, RepositoryClassDefinition>
144                    _repositoryClassDefinitions =
145                            new ConcurrentHashMap<String, RepositoryClassDefinition>();
146            private List<RepositoryDefiner> _repositoryDefiners;
147            private final StringServiceRegistrationMap<RepositoryDefiner>
148                    _serviceRegistrations =
149                            new StringServiceRegistrationMap<RepositoryDefiner>();
150            private ServiceTracker<RepositoryDefiner, RepositoryDefiner>
151                    _serviceTracker;
152    
153            private class RepositoryDefinerServiceTrackerCustomizer
154                    implements ServiceTrackerCustomizer
155                            <RepositoryDefiner, RepositoryDefiner> {
156    
157                    @Override
158                    public RepositoryDefiner addingService(
159                            ServiceReference<RepositoryDefiner> serviceReference) {
160    
161                            Registry registry = RegistryUtil.getRegistry();
162    
163                            RepositoryDefiner repositoryDefiner = registry.getService(
164                                    serviceReference);
165    
166                            String className = repositoryDefiner.getClassName();
167    
168                            if (repositoryDefiner.isExternalRepository()) {
169                                    _externalRepositoriesClassNames.add(className);
170                            }
171    
172                            _repositoryClassDefinitions.put(
173                                    className,
174                                    RepositoryClassDefinition.fromRepositoryDefiner(
175                                            repositoryDefiner));
176    
177                            return repositoryDefiner;
178                    }
179    
180                    @Override
181                    public void modifiedService(
182                            ServiceReference<RepositoryDefiner> serviceReference,
183                            RepositoryDefiner repositoryDefiner) {
184    
185                            String className = repositoryDefiner.getClassName();
186    
187                            if (repositoryDefiner.isExternalRepository()) {
188                                    _externalRepositoriesClassNames.add(className);
189                            }
190                            else {
191                                    _externalRepositoriesClassNames.remove(className);
192                            }
193    
194                            _repositoryClassDefinitions.put(
195                                    repositoryDefiner.getClassName(),
196                                    RepositoryClassDefinition.fromRepositoryDefiner(
197                                            repositoryDefiner));
198                    }
199    
200                    @Override
201                    public void removedService(
202                            ServiceReference<RepositoryDefiner> serviceReference,
203                            RepositoryDefiner repositoryDefiner) {
204    
205                            unregisterRepositoryDefiner(repositoryDefiner.getClassName());
206                    }
207    
208            }
209    
210    }