Source Code Cross Referenced for FileGroup.java in  » Content-Management-System » apache-lenya-2.0 » org » apache » lenya » ac » file » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Content Management System » apache lenya 2.0 » org.apache.lenya.ac.file 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Licensed to the Apache Software Foundation (ASF) under one or more
003:         *  contributor license agreements.  See the NOTICE file distributed with
004:         *  this work for additional information regarding copyright ownership.
005:         *  The ASF licenses this file to You under the Apache License, Version 2.0
006:         *  (the "License"); you may not use this file except in compliance with
007:         *  the License.  You may obtain a copy of the License at
008:         *
009:         *      http://www.apache.org/licenses/LICENSE-2.0
010:         *
011:         *  Unless required by applicable law or agreed to in writing, software
012:         *  distributed under the License is distributed on an "AS IS" BASIS,
013:         *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014:         *  See the License for the specific language governing permissions and
015:         *  limitations under the License.
016:         *
017:         */
018:
019:        /* $Id: FileGroup.java 485769 2006-12-11 17:41:23Z andreas $  */
020:
021:        package org.apache.lenya.ac.file;
022:
023:        import java.io.File;
024:
025:        import org.apache.avalon.framework.configuration.Configuration;
026:        import org.apache.avalon.framework.configuration.ConfigurationException;
027:        import org.apache.avalon.framework.configuration.DefaultConfiguration;
028:        import org.apache.avalon.framework.configuration.DefaultConfigurationSerializer;
029:        import org.apache.avalon.framework.logger.Logger;
030:        import org.apache.lenya.ac.AccessControlException;
031:        import org.apache.lenya.ac.Item;
032:        import org.apache.lenya.ac.ItemManager;
033:        import org.apache.lenya.ac.impl.AbstractGroup;
034:        import org.apache.lenya.ac.impl.ItemConfiguration;
035:
036:        /**
037:         * File-based group implementation.
038:         */
039:        public class FileGroup extends AbstractGroup implements  Item {
040:
041:            /**
042:             * @see org.apache.lenya.ac.Group#delete()
043:             */
044:            public void delete() throws AccessControlException {
045:                super .delete();
046:                getFile().delete();
047:            }
048:
049:            /**
050:             * Creates a new FileGroup object.
051:             * @param itemManager The item manager.
052:             * @param logger The logger.
053:             */
054:            public FileGroup(ItemManager itemManager, Logger logger) {
055:                super (itemManager, logger);
056:            }
057:
058:            /**
059:             * Create a new instance of <code>FileGroup</code>
060:             * @param itemManager The item manager.
061:             * @param logger The logger.
062:             * @param id the ID of the group
063:             */
064:            public FileGroup(ItemManager itemManager, Logger logger, String id) {
065:                super (itemManager, logger, id);
066:                FileItemManager fileItemManager = (FileItemManager) itemManager;
067:                setConfigurationDirectory(fileItemManager
068:                        .getConfigurationDirectory());
069:            }
070:
071:            /**
072:             * Configures this file group.
073:             * @param config The configuration.
074:             * @throws ConfigurationException when something went wrong.
075:             */
076:            public void configure(Configuration config)
077:                    throws ConfigurationException {
078:                new ItemConfiguration().configure(this , config);
079:            }
080:
081:            /**
082:             * Returns the configuration file.
083:             * @return A file object.
084:             */
085:            protected File getFile() {
086:                File xmlPath = getConfigurationDirectory();
087:                File xmlFile = new File(xmlPath, getId()
088:                        + FileGroupManager.SUFFIX);
089:                return xmlFile;
090:            }
091:
092:            /**
093:             * Save this group
094:             * @throws AccessControlException if the save failed
095:             */
096:            public void save() throws AccessControlException {
097:                DefaultConfigurationSerializer serializer = new DefaultConfigurationSerializer();
098:                Configuration config = createConfiguration();
099:                File xmlfile = getFile();
100:
101:                try {
102:                    serializer.serializeToFile(xmlfile, config);
103:                } catch (Exception e) {
104:                    throw new AccessControlException(e);
105:                }
106:            }
107:
108:            /**
109:             * Group configuration element.
110:             */
111:            public static final String GROUP = "group";
112:
113:            /**
114:             * Create a configuration containing the group details
115:             * @return a <code>Configuration</code>
116:             */
117:            private Configuration createConfiguration() {
118:                DefaultConfiguration config = new DefaultConfiguration(GROUP);
119:                new ItemConfiguration().save(this , config);
120:
121:                return config;
122:            }
123:
124:            private File configurationDirectory;
125:
126:            /**
127:             * Returns the configuration directory.
128:             * @return A file object.
129:             */
130:            protected File getConfigurationDirectory() {
131:                return this .configurationDirectory;
132:            }
133:
134:            protected void setConfigurationDirectory(
135:                    File _configurationDirectory) {
136:                assert (_configurationDirectory != null)
137:                        && _configurationDirectory.isDirectory();
138:                this.configurationDirectory = _configurationDirectory;
139:            }
140:        }
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