001/*
002 * (C) Copyright 2006-2008 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     troger
018 *
019 * $Id$
020 */
021
022package org.nuxeo.ecm.platform.annotations.configuration.service;
023
024import java.util.ArrayList;
025import java.util.HashMap;
026import java.util.HashSet;
027import java.util.List;
028import java.util.Map;
029import java.util.Set;
030
031import org.apache.commons.logging.Log;
032import org.apache.commons.logging.LogFactory;
033import org.nuxeo.ecm.platform.annotations.gwt.server.configuration.UserInfoMapper;
034import org.nuxeo.ecm.platform.annotations.gwt.server.configuration.WebPermission;
035import org.nuxeo.runtime.model.ComponentContext;
036import org.nuxeo.runtime.model.ComponentInstance;
037import org.nuxeo.runtime.model.DefaultComponent;
038
039/**
040 * @author <a href="mailto:[email protected]">Thomas Roger</a>
041 * @author <a href="mailto:[email protected]">Quentin Lamerand</a>
042 */
043public class WebAnnotationConfigurationServiceImpl extends DefaultComponent implements
044        WebAnnotationConfigurationService {
045
046    private static final Log log = LogFactory.getLog(WebAnnotationConfigurationServiceImpl.class);
047
048    private static final String ANNOTATION_TYPES_EXTENSION_POINT = "types";
049
050    private static final String USER_INFO_EXTENSION_POINT = "userInfo";
051
052    private static final String WEB_PERMISSION_EXTENSION_POINT = "webPermission";
053
054    private static final String FILTERS_EXTENSION_POINT = "filters";
055
056    private static final String DISPLAYED_FIELDS_EXTENSION_POINT = "displayedFields";
057
058    private Map<String, WebAnnotationDefinitionDescriptor> annotationDefinitionsDescriptors;
059
060    private UserInfoMapper userInfoMapper;
061
062    private WebPermission webPermission;
063
064    private Map<String, FilterDescriptor> filterDescriptors;
065
066    private Set<String> displayedFields;
067
068    private Map<String, String> fieldLabels;
069
070    @Override
071    public void activate(ComponentContext context) {
072        annotationDefinitionsDescriptors = new HashMap<String, WebAnnotationDefinitionDescriptor>();
073        filterDescriptors = new HashMap<String, FilterDescriptor>();
074        displayedFields = new HashSet<String>();
075        fieldLabels = new HashMap<String, String>();
076    }
077
078    @Override
079    public void deactivate(ComponentContext context) {
080        annotationDefinitionsDescriptors = null;
081        userInfoMapper = null;
082        filterDescriptors = null;
083        displayedFields = null;
084        fieldLabels = null;
085    }
086
087    @Override
088    public void registerContribution(Object contribution, String extensionPoint, ComponentInstance contributor) {
089        if (ANNOTATION_TYPES_EXTENSION_POINT.equals(extensionPoint)) {
090            WebAnnotationDefinitionDescriptor descriptor = (WebAnnotationDefinitionDescriptor) contribution;
091            if (annotationDefinitionsDescriptors.put(descriptor.getName(), descriptor) != null) {
092                log.info("Already registered annotation type: " + descriptor.getName() + ", storing the new one.");
093            }
094        } else if (USER_INFO_EXTENSION_POINT.equals(extensionPoint)) {
095            UserInfoMapperDescriptor descriptor = (UserInfoMapperDescriptor) contribution;
096            userInfoMapper = newInstance(descriptor.getKlass());
097        } else if (WEB_PERMISSION_EXTENSION_POINT.equals(extensionPoint)) {
098            WebPermissionDescriptor descriptor = (WebPermissionDescriptor) contribution;
099            webPermission = newInstance(descriptor.getKlass());
100        } else if (FILTERS_EXTENSION_POINT.equals(extensionPoint)) {
101            FilterDescriptor descriptor = (FilterDescriptor) contribution;
102            if (filterDescriptors.put(descriptor.getName(), descriptor) != null) {
103                log.info("Already registered annotation filter: " + descriptor.getName() + ", storing the new one.");
104            }
105        } else if (DISPLAYED_FIELDS_EXTENSION_POINT.equals(extensionPoint)) {
106            DisplayedFieldsDescriptor descriptor = (DisplayedFieldsDescriptor) contribution;
107            String fieldName = descriptor.getName();
108            if (descriptor.isDisplayed()) {
109                displayedFields.add(fieldName);
110            } else {
111                displayedFields.remove(fieldName);
112            }
113
114            String fieldLabel = descriptor.getLabel();
115            if (fieldLabel != null) {
116                fieldLabels.put(fieldName, fieldLabel);
117            }
118        }
119    }
120
121    protected <T> T newInstance(Class<T> klass) {
122        try {
123            return klass.newInstance();
124        } catch (ReflectiveOperationException e) {
125            throw new RuntimeException(e);
126        }
127    }
128
129    @Override
130    public void unregisterContribution(Object contribution, String extensionPoint, ComponentInstance contributor) {
131        if (ANNOTATION_TYPES_EXTENSION_POINT.equals(extensionPoint)) {
132            WebAnnotationDefinitionDescriptor descriptor = (WebAnnotationDefinitionDescriptor) contribution;
133            annotationDefinitionsDescriptors.remove(descriptor.getName());
134        } else if (FILTERS_EXTENSION_POINT.equals(extensionPoint)) {
135            FilterDescriptor descriptor = (FilterDescriptor) contribution;
136            filterDescriptors.remove(descriptor.getName());
137        } else if (DISPLAYED_FIELDS_EXTENSION_POINT.equals(extensionPoint)) {
138            DisplayedFieldsDescriptor descriptor = (DisplayedFieldsDescriptor) contribution;
139            String fieldName = descriptor.getName();
140            displayedFields.remove(fieldName);
141            fieldLabels.remove(fieldName);
142        }
143    }
144
145    public List<WebAnnotationDefinitionDescriptor> getAllWebAnnotationDefinitions() {
146        return new ArrayList<WebAnnotationDefinitionDescriptor>(annotationDefinitionsDescriptors.values());
147    }
148
149    public List<WebAnnotationDefinitionDescriptor> getEnabledWebAnnotationDefinitions() {
150        List<WebAnnotationDefinitionDescriptor> definitions = new ArrayList<WebAnnotationDefinitionDescriptor>();
151        for (WebAnnotationDefinitionDescriptor def : annotationDefinitionsDescriptors.values()) {
152            if (def.isEnabled()) {
153                definitions.add(def);
154            }
155        }
156        return definitions;
157    }
158
159    public UserInfoMapper getUserInfoMapper() {
160        return userInfoMapper;
161    }
162
163    public WebPermission getWebPermission() {
164        return webPermission;
165    }
166
167    public Map<String, FilterDescriptor> getFilterDefinitions() {
168        return filterDescriptors;
169    }
170
171    public Set<String> getDisplayedFields() {
172        return displayedFields;
173    }
174
175    public Map<String, String> getFieldLabels() {
176        return fieldLabels;
177    }
178
179}