001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2011 SonarSource
004     * mailto:contact AT sonarsource DOT com
005     *
006     * Sonar is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU Lesser General Public
008     * License as published by the Free Software Foundation; either
009     * version 3 of the License, or (at your option) any later version.
010     *
011     * Sonar is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014     * Lesser General Public License for more details.
015     *
016     * You should have received a copy of the GNU Lesser General Public
017     * License along with Sonar; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019     */
020    package org.sonar.api.config;
021    
022    import com.google.common.collect.Maps;
023    import org.apache.commons.lang.StringUtils;
024    import org.sonar.api.BatchComponent;
025    import org.sonar.api.Properties;
026    import org.sonar.api.Property;
027    import org.sonar.api.ServerComponent;
028    import org.sonar.api.utils.AnnotationUtils;
029    
030    import java.util.Arrays;
031    import java.util.Collection;
032    import java.util.Map;
033    
034    /**
035     * Metadata of all the properties declared by plugins
036     *
037     * @since 2.12
038     */
039    public final class PropertyDefinitions implements BatchComponent, ServerComponent {
040    
041      private Map<String, Property> properties = Maps.newHashMap();
042      private Map<String, String> categories = Maps.newHashMap();
043    
044      public PropertyDefinitions(Object... components) {
045        if (components != null) {
046          addComponents(Arrays.asList(components));
047        }
048      }
049    
050      public PropertyDefinitions addComponents(Collection components) {
051        return addComponents(components, "");
052      }
053    
054      public PropertyDefinitions addComponents(Collection components, String defaultCategory) {
055        for (Object component : components) {
056          addComponent(component, defaultCategory);
057        }
058        return this;
059      }
060    
061      public PropertyDefinitions addComponent(Object object) {
062        return addComponent(object, "");
063      }
064    
065      public PropertyDefinitions addComponent(Object component, String defaultCategory) {
066        Properties annotations = AnnotationUtils.getClassAnnotation(component, Properties.class);
067        if (annotations != null) {
068          for (Property property : annotations.value()) {
069            addProperty(property, defaultCategory);
070          }
071        }
072        Property annotation = AnnotationUtils.getClassAnnotation(component, Property.class);
073        if (annotation != null) {
074          addProperty(annotation, defaultCategory);
075        }
076        return this;
077      }
078    
079      PropertyDefinitions addProperty(Property property) {
080        return addProperty(property, "");
081      }
082    
083      PropertyDefinitions addProperty(Property property, String defaultCategory) {
084        if (!properties.containsKey(property.key())) {
085          properties.put(property.key(), property);
086          categories.put(property.key(), StringUtils.defaultIfBlank(property.category(), defaultCategory));
087        }
088        return this;
089      }
090    
091      public Property getProperty(String key) {
092        return properties.get(key);
093      }
094    
095      public Collection<Property> getProperties() {
096        return properties.values();
097      }
098    
099      public String getDefaultValue(String key) {
100        Property prop = getProperty(key);
101        if (prop != null) {
102          return StringUtils.defaultIfEmpty(prop.defaultValue(), null);
103        }
104        return null;
105      }
106    
107      public String getCategory(String key) {
108        return categories.get(key);
109      }
110    
111      public String getCategory(Property prop) {
112        return getCategory(prop.key());
113      }
114    }