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.core.dbobj.ValidValue;
067: import com.jcorporate.expresso.kernel.Configuration;
068: import com.jcorporate.expresso.kernel.digester.ComponentConfig;
069: import com.jcorporate.expresso.kernel.internal.DefaultConfigBean;
070: import com.jcorporate.expresso.kernel.util.ClassLocator;
071: import org.apache.commons.beanutils.ConvertUtils;
072: import org.apache.log4j.Logger;
073:
074: import java.util.ArrayList;
075: import java.util.List;
076:
077: /**
078: * Metadata class that represents a simple property for an Expresso component
079: *
080: * @author Michael Rimov
081: * @version $Revision: 1.6 $ on $Date: 2004/11/17 20:48:17 $
082: */
083:
084: public class SimpleProperty extends Property {
085: List validValues;
086: String value;
087:
088: /**
089: * Default Constructor
090: */
091: public SimpleProperty() {
092: super ();
093: validValues = new ArrayList();
094: }
095:
096: /**
097: * Set the value of the property
098: *
099: * @param value java.lang.String
100: */
101: public void setValue(String value) {
102: this .value = value;
103: }
104:
105: /**
106: * Retrieve the value of the property
107: *
108: * @return java.lang.String
109: */
110: public String getValue() {
111: return value;
112: }
113:
114: /**
115: * Add a valid value for the property
116: *
117: * @param key the 'key' or internal value
118: * @param value the friendly value to be displayed in management systems.
119: */
120: public void addValidValue(String key, String value) {
121: ValidValue vv = new ValidValue(key, value);
122: validValues.add(vv);
123: }
124:
125: /**
126: * Retrieve a list of valid values for this particular property.
127: *
128: * @return List of valid value objects
129: */
130: public List retrieveValidValues() {
131: return validValues;
132: }
133:
134: /**
135: * Load the configBean with values for this property.
136: * If there are any values present in the ComponentConfig, then use those properties,
137: * if empty, use your own default values as specified in the ComponentMetadata
138: *
139: * @param targetBean The configBean to populate with this property.
140: * @param config the current configuration as loaded from the expresso config.xml file
141: * @param metadata the current metadata for this component
142: * @return the Configuration interface (actually uslaly the configbean parameter)
143: */
144: public Configuration createConfigBean(DefaultConfigBean targetBean,
145: ComponentConfig config, ComponentMetadata metadata) {
146: String newValue = config.getProperty(this .getName());
147: if (newValue == null || newValue.length() == 0) {
148: newValue = this .getValue();
149: }
150:
151: String type = this .getType();
152:
153: try {
154: targetBean.set(this .getName(), ConvertUtils.convert(
155: newValue, ClassLocator.loadClass(type)));
156: } catch (ClassNotFoundException ex) {
157: Logger log = Logger.getLogger(this .getClass());
158: log.error("Error converting value " + value
159: + " to class : " + type + " class not found.", ex);
160: throw new IllegalArgumentException("Class not found: "
161: + type);
162: }
163:
164: return targetBean;
165: }
166:
167: }
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