001: /*
002: The contents of this file are subject to the Common Public Attribution License
003: Version 1.0 (the "License"); you may not use this file except in compliance with
004: the License. You may obtain a copy of the License at
005: http://www.projity.com/license . The License is based on the Mozilla Public
006: License Version 1.1 but Sections 14 and 15 have been added to cover use of
007: software over a computer network and provide for limited attribution for the
008: Original Developer. In addition, Exhibit A has been modified to be consistent
009: with Exhibit B.
010:
011: Software distributed under the License is distributed on an "AS IS" basis,
012: WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the
013: specific language governing rights and limitations under the License. The
014: Original Code is OpenProj. The Original Developer is the Initial Developer and
015: is Projity, Inc. All portions of the code written by Projity are Copyright (c)
016: 2006, 2007. All Rights Reserved. Contributors Projity, Inc.
017:
018: Alternatively, the contents of this file may be used under the terms of the
019: Projity End-User License Agreeement (the Projity License), in which case the
020: provisions of the Projity License are applicable instead of those above. If you
021: wish to allow use of your version of this file only under the terms of the
022: Projity License and not to allow others to use your version of this file under
023: the CPAL, indicate your decision by deleting the provisions above and replace
024: them with the notice and other provisions required by the Projity License. If
025: you do not delete the provisions above, a recipient may use your version of this
026: file under either the CPAL or the Projity License.
027:
028: [NOTE: The text of this license may differ slightly from the text of the notices
029: in Exhibits A and B of the license at http://www.projity.com/license. You should
030: use the latest text at http://www.projity.com/license for your modifications.
031: You may not remove this license text from the source files.]
032:
033: Attribution Information: Attribution Copyright Notice: Copyright © 2006, 2007
034: Projity, Inc. Attribution Phrase (not exceeding 10 words): Powered by OpenProj,
035: an open source solution from Projity. Attribution URL: http://www.projity.com
036: Graphic Image as provided in the Covered Code as file: openproj_logo.png with
037: alternatives listed on http://www.projity.com/logo
038:
039: Display of Attribution Information is required in Larger Works which are defined
040: in the CPAL as a work which combines Covered Code or portions thereof with code
041: not governed by the terms of the CPAL. However, in addition to the other notice
042: obligations, all copies of the Covered Code in Executable and Source Code form
043: distributed must, as a form of attribution of the original author, include on
044: each user interface screen the "OpenProj" logo visible to all users. The
045: OpenProj logo should be located horizontally aligned with the menu bar and left
046: justified on the top left of the screen adjacent to the File menu. The logo
047: must be at least 100 x 25 pixels. When users click on the "OpenProj" logo it
048: must direct them back to http://www.projity.com.
049: */
050: package com.projity.field;
051:
052: import java.lang.reflect.Method;
053: import java.util.Collection;
054: import java.util.List;
055:
056: import org.apache.commons.lang.ObjectUtils;
057: import org.apache.commons.lang.StringUtils;
058:
059: import com.projity.util.ClassUtils;
060:
061: /**
062: * This class represents a set of choices where the list of choices and the finder are specified via reflection.
063: * It is used by Fields
064: */
065: public class DynamicSelect extends Select implements Finder {
066: /**
067: *
068: */
069: public DynamicSelect() {
070: super ();
071: // TODO Auto-generated constructor stub
072: }
073:
074: public Object[] getKeyArrayWithoutNull() {
075: try {
076: return (Object[]) listMethod.invoke(null, null);
077: } catch (Exception e) {
078: Field.log.error("error calling keyArrayFromMethod for:"
079: + listMethod);
080: return null;
081: }
082: }
083:
084: public List getValueListWithoutNull() {
085: throw new RuntimeException("Not implemented");
086: }
087:
088: private Method listMethod = null;
089: private Method finderMethod = null;
090:
091: public void setList(String methodName) {
092: listMethod = ClassUtils
093: .staticVoidMethodFromFullName(methodName);
094: if (listMethod == null)
095: Field.log.error("invalid method in select:" + methodName);
096: }
097:
098: public void setFinder(String finderName) {
099: finderMethod = ClassUtils.staticMethodFromFullName(finderName,
100: new Class[] { String.class });
101: if (finderMethod == null)
102: Field.log.error("invalid method in select:" + finderName);
103: }
104:
105: /* (non-Javadoc)
106: * @see com.projity.field.Select#get(java.lang.Object)
107: */
108: public Object getValue(Object arg0) throws InvalidChoiceException {
109: if (arg0 == null)
110: return null;
111: String name = arg0.toString();
112: if (StringUtils.isEmpty(name))
113: return null;
114: Object result = find(name, null);
115: if (result == null && (!isAllowNull() || name != EMPTY))
116: throw new InvalidChoiceException(ObjectUtils.toString(name));
117: return result;
118: }
119:
120: /* (non-Javadoc)
121: * @see com.projity.field.Select#getKey(java.lang.Object)
122: */
123: public Object getKey(Object arg0) {
124: return ObjectUtils.toString(arg0);
125: }
126:
127: /* (non-Javadoc)
128: * @see com.projity.field.Finder#find(java.lang.Object)
129: */
130: public Object find(Object key, Collection container) {
131: String name = (String) key;
132: try {
133: return finderMethod.invoke(null, new Object[] { name });
134: } catch (Exception e) {
135: return null;
136: }
137: }
138:
139: /* (non-Javadoc)
140: * @see com.projity.field.Select#isStatic()
141: */
142: public boolean isStatic() {
143: return false;
144: }
145:
146: }
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