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.functor;
051:
052: import java.text.MessageFormat;
053: import java.util.Collection;
054:
055: import org.apache.commons.collections.Closure;
056: import org.apache.commons.collections.CollectionUtils;
057: import org.apache.commons.collections.Transformer;
058: import org.apache.commons.collections.functors.StringValueTransformer;
059:
060: import com.projity.configuration.Settings;
061:
062: /**
063: *
064: */
065: public class StringList implements Closure {
066: private StringBuffer buffer = new StringBuffer();
067: private String separator = Settings.LIST_SEPARATOR;
068: private Transformer transformer = null;
069:
070: private StringList() {
071: this (StringValueTransformer.INSTANCE);
072: }
073:
074: private StringList(Transformer transformer) {
075: this .transformer = transformer;
076: }
077:
078: /**
079: * @param separator The separator to set.
080: */
081: public void setSeparator(String separator) {
082: this .separator = separator;
083: }
084:
085: /* (non-Javadoc)
086: * @see org.apache.commons.collections.Closure#execute(java.lang.Object)
087: */
088: public void execute(Object object) {
089: if (object != null) {
090: if (buffer.length() > 0)
091: buffer.append(separator);
092: buffer.append(transformer.transform(object));
093: }
094: }
095:
096: /* (non-Javadoc)
097: * @see java.lang.Object#toString()
098: */
099: public String toString() {
100: return buffer.toString();
101: }
102:
103: /**
104: * Utility function to dump out a collection separated by ,
105: * @param collection
106: * @return
107: */
108: public static String list(Collection collection) {
109: return list(collection, StringValueTransformer.INSTANCE);
110: }
111:
112: public static String commaSeparatedList(Collection collection) {
113: StringList l = getInstance(StringValueTransformer.INSTANCE);
114: l.setSeparator(",");
115: CollectionUtils.forAllDo(collection, l);
116: return l.toString();
117: }
118:
119: public static String brSeparatedList(Collection collection) {
120: StringList l = getInstance(StringValueTransformer.INSTANCE);
121: l.setSeparator("<br>");
122: CollectionUtils.forAllDo(collection, l);
123: return l.toString();
124: }
125:
126: /** for generating prepared statements */
127: public static String commaQuestionMarkString(Collection collection) {
128: return StringList.list(collection, ",", new Transformer() {
129: public Object transform(Object arg0) {
130: return "?";
131: }
132: });
133: }
134:
135: public static String list(Collection collection,
136: Transformer transformer) {
137: StringList l = getInstance(transformer);
138: CollectionUtils.forAllDo(collection, l);
139: return l.toString();
140: }
141:
142: public static String list(Collection collection, String separator,
143: Transformer transformer) {
144: StringList l = getInstance(transformer);
145: l.setSeparator(separator);
146: CollectionUtils.forAllDo(collection, l);
147: return l.toString();
148: }
149:
150: public static String listWithMaxAndMessage(Collection collection,
151: int maxInList, String message, Transformer transformer) {
152: if (collection.size() > maxInList)
153: return MessageFormat.format(message,
154: new Object[] { new Integer(collection.size()) });
155: return list(collection, transformer);
156: }
157:
158: /**
159: * Utility function to dump out a collection on separate lines
160: * @param collection
161: * @return
162: */
163: public static String rows(java.util.Collection collection) {
164: StringList l = getInstance();
165: l.setSeparator("\n");
166: CollectionUtils.forAllDo(collection, l);
167: return l.toString();
168: }
169:
170: public static StringList getInstance() {
171: return new StringList();
172: }
173:
174: public static StringList getInstance(Transformer transformer) {
175: return new StringList(transformer);
176: }
177:
178: /**
179: * Repates the String val a number of times. Couldn't find an SDK or commons method for this.
180: * @param val
181: * @param times
182: * @return
183: */
184: public static String repeat(String val, int times) {
185: StringBuffer buf = new StringBuffer();
186: for (int i = 0; i < times; i++)
187: buf.append(val);
188: return buf.toString();
189: }
190: }
|