001: /* ====================================================================
002: * The Jcorporate Apache Style Software License, Version 1.2 05-07-2002
003: *
004: * Copyright (c) 1995-2003 Jcorporate Ltd. All rights reserved.
005: *
006: * Redistribution and use in source and binary forms, with or without
007: * modification, are permitted provided that the following conditions
008: * are met:
009: *
010: * 1. Redistributions of source code must retain the above copyright
011: * notice, this list of conditions and the following disclaimer.
012: *
013: * 2. Redistributions in binary form must reproduce the above copyright
014: * notice, this list of conditions and the following disclaimer in
015: * the documentation and/or other materials provided with the
016: * distribution.
017: *
018: * 3. The end-user documentation included with the redistribution,
019: * if any, must include the following acknowledgment:
020: * "This product includes software developed by Jcorporate Ltd.
021: * (http://www.jcorporate.com/)."
022: * Alternately, this acknowledgment may appear in the software itself,
023: * if and wherever such third-party acknowledgments normally appear.
024: *
025: * 4. "Jcorporate" and product names such as "Expresso" must
026: * not be used to endorse or promote products derived from this
027: * software without prior written permission. For written permission,
028: * please contact info@jcorporate.com.
029: *
030: * 5. Products derived from this software may not be called "Expresso",
031: * or other Jcorporate product names; nor may "Expresso" or other
032: * Jcorporate product names appear in their name, without prior
033: * written permission of Jcorporate Ltd.
034: *
035: * 6. No product derived from this software may compete in the same
036: * market space, i.e. framework, without prior written permission
037: * of Jcorporate Ltd. For written permission, please contact
038: * partners@jcorporate.com.
039: *
040: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
041: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
042: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
043: * DISCLAIMED. IN NO EVENT SHALL JCORPORATE LTD OR ITS CONTRIBUTORS
044: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
045: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
046: * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
047: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
048: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
049: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
050: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
051: * SUCH DAMAGE.
052: * ====================================================================
053: *
054: * This software consists of voluntary contributions made by many
055: * individuals on behalf of the Jcorporate Ltd. Contributions back
056: * to the project(s) are encouraged when you make modifications.
057: * Please send them to support@jcorporate.com. For more information
058: * on Jcorporate Ltd. and its products, please see
059: * <http://www.jcorporate.com/>.
060: *
061: * Portions of this software are based upon other open source
062: * products and are subject to their respective licenses.
063: */
064: package com.jcorporate.expresso.kernel.metadata;
065:
066: import com.jcorporate.expresso.kernel.Configuration;
067: import com.jcorporate.expresso.kernel.digester.ComponentConfig;
068: import com.jcorporate.expresso.kernel.internal.DefaultConfigBean;
069: import com.jcorporate.expresso.kernel.util.ClassLocator;
070: import org.apache.commons.beanutils.ConvertUtils;
071: import org.apache.log4j.Logger;
072:
073: import java.util.Iterator;
074: import java.util.Map;
075: import java.util.TreeMap;
076:
077: /**
078: * Bean describing an indexed property. Note because of the potential
079: * weirdness of receiving indexed values, this class simply implements the
080: * index as a key in a TreeMap so that we can retrieve all the values in
081: * order
082: *
083: * @author Michael Rimov
084: * @version $Revision: 1.6 $ on $Date: 2004/11/17 20:48:17 $
085: */
086:
087: public class IndexedProperty extends Property {
088: Map values;
089:
090: /**
091: * Default Constructor
092: */
093: public IndexedProperty() {
094: super ();
095: values = new TreeMap();
096: }
097:
098: /**
099: * Set an indexed value
100: *
101: * @param index the index of the property
102: * @param value the value to set for that index
103: */
104: public void setIndexedValue(int index, String value) {
105: if (index < 0) {
106: throw new IllegalArgumentException("index must be >= 0");
107: }
108:
109: values.put(new Integer(index), value);
110: }
111:
112: /**
113: * Retrieve a map of all indicies and their corresponding values for this
114: * property
115: *
116: * @return java.util.Map
117: */
118: public Map getValues() {
119: return values;
120: }
121:
122: /**
123: * Retrieve a value at a certain index
124: *
125: * @param index the index to retrieve the value for
126: * @return java.lang.String
127: */
128: public String getIndexedValue(int index) {
129: if (index < 0) {
130: throw new IllegalArgumentException("index must be >= 0");
131: }
132:
133: return (String) values.get(new Integer(index));
134: }
135:
136: /**
137: * Load the configBean with values for this property.
138: * If there are any values present in the ComponentConfig, then use those properties,
139: * if empty, use your own default values as specified in the ComponentMetadata
140: *
141: * @param targetBean The configBean to populate with this property.
142: * @param config the current configuration as loaded from the expresso config.xml file
143: * @param metadata the current metadata for this component
144: * @return the Configuration interface (actually uslaly the configbean parameter)
145: */
146: public Configuration createConfigBean(DefaultConfigBean targetBean,
147: ComponentConfig config, ComponentMetadata metadata) {
148: Map parsedProperties = config.getIndexedProperties(this
149: .getName());
150: if (parsedProperties == null) {
151: //
152: //Fill all the default values we have from the metadata instead since
153: //no config data exists
154: //
155: for (Iterator i = values.keySet().iterator(); i.hasNext();) {
156: Integer index = (Integer) i.next();
157: String value = (String) values.get(index);
158: String type = this .getType();
159: try {
160: targetBean.set(this .getName(), ConvertUtils
161: .convert(value, ClassLocator
162: .loadClass(type)));
163: } catch (ClassNotFoundException ex) {
164: Logger log = Logger.getLogger(this .getClass());
165: log.error("Error converting value " + value
166: + " to class : " + type
167: + " class not found.", ex);
168: throw new IllegalArgumentException(
169: "Class not found: " + type);
170: }
171: }
172:
173: return targetBean;
174: }
175:
176: for (Iterator i = parsedProperties.keySet().iterator(); i
177: .hasNext();) {
178: Integer index = (Integer) i.next();
179: String value = config.getIndexedProperty(this .getName(),
180: index.intValue());
181:
182: if (value == null || value.length() == 0) {
183: value = this .getIndexedValue(index.intValue());
184: }
185: String type = this .getType();
186: try {
187: targetBean.set(this .getName(), index.intValue(),
188: ConvertUtils.convert(value, ClassLocator
189: .loadClass(type)));
190: } catch (ClassNotFoundException ex) {
191: Logger log = Logger.getLogger(this .getClass());
192: log.error("Error converting value " + value
193: + " to class : " + type + " class not found.",
194: ex);
195: throw new IllegalArgumentException("Class not found: "
196: + type);
197: }
198: }
199:
200: //
201: //Now, finally, check for any indicies that ARE NOT in the config file,
202: //but ARE in metadata
203: //
204: for (Iterator i = values.keySet().iterator(); i.hasNext();) {
205: Integer index = (Integer) i.next();
206:
207: if (!config.getIndexedProperties(this .getName())
208: .containsKey(index)) {
209: String value = (String) values.get(index);
210: String type = this .getType();
211: try {
212: targetBean.set(this .getName(), ConvertUtils
213: .convert(value, ClassLocator
214: .loadClass(type)));
215: } catch (ClassNotFoundException ex) {
216: Logger log = Logger.getLogger(this .getClass());
217: log.error("Error converting value " + value
218: + " to class : " + type
219: + " class not found.", ex);
220: throw new IllegalArgumentException(
221: "Class not found: " + type);
222: }
223: }
224: }
225: return targetBean;
226: }
227: }
|