001 /**
002 * Copyright 2009-2012 The Kuali Foundation
003 *
004 * Licensed under the Educational Community License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.opensource.org/licenses/ecl2.php
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016 package org.codehaus.mojo.properties;
017
018 import java.util.Properties;
019
020 import org.apache.commons.lang.StringUtils;
021 import org.apache.maven.plugin.AbstractMojo;
022 import org.apache.maven.plugin.MojoExecutionException;
023 import org.apache.maven.project.MavenProject;
024
025 /**
026 * Parse version number properties into [major].[minor].[incremental].[qualifier] and [trimmed]. The version parsing
027 * logic is crudely simple. It splits the version string into tokens using both "." and "-" as delimiters. It assumes
028 * the first token is "major", the second token is "minor" the third token is "incremental" and any tokens after that
029 * are "qualifier". "SNAPSHOT" is always omitted from qualifier.
030 *
031 * [trimmed] is the full version minus "-SNAPSHOT"
032 *
033 * @goal parse-version-properties
034 */
035 public class ParseVersionPropertiesMojo extends AbstractMojo {
036 public static final String MAVEN_SNAPSHOT_TOKEN = "SNAPSHOT";
037
038 /**
039 * @parameter default-value="${project}"
040 * @required
041 * @readonly
042 */
043 private MavenProject project;
044
045 /**
046 * The list of properties containing version numbers to parse
047 *
048 * @parameter
049 * @required
050 */
051 private String[] properties;
052
053 /**
054 * If true, the plugin will emit no logging messages
055 *
056 * @parameter expression="${properties.silent}" default-value="false"
057 * @required
058 */
059 private boolean silent;
060
061 @Override
062 public void execute() throws MojoExecutionException {
063 Properties props = project.getProperties();
064 for (String key : properties) {
065 String value = getProperty(key);
066 if (StringUtils.isBlank(value)) {
067 continue;
068 }
069 Version version = parseVersion(value);
070 setProjectProperty(key, "major", version.getMajor(), props);
071 setProjectProperty(key, "minor", version.getMinor(), props);
072 setProjectProperty(key, "incremental", version.getIncremental(), props);
073 setProjectProperty(key, "qualifier", version.getQualifier(), props);
074 setProjectProperty(key, "trimmed", trimSnapshot(value), props);
075 }
076 }
077
078 protected String trimSnapshot(String version) {
079 if (version.toUpperCase().endsWith("-" + MAVEN_SNAPSHOT_TOKEN)) {
080 int length = MAVEN_SNAPSHOT_TOKEN.length() + 1;
081 return StringUtils.left(version, version.length() - length);
082 } else {
083 return version;
084 }
085 }
086
087 protected void setProjectProperty(String key, String suffix, String value, Properties props) {
088 if (StringUtils.isBlank(value)) {
089 return;
090 }
091 props.setProperty(key + "." + suffix, value);
092 if (!silent) {
093 getLog().info("Setting " + key + "." + suffix + "=" + value);
094 }
095 }
096
097 protected Version parseVersion(String s) {
098 boolean snapshot = s.toUpperCase().endsWith("-" + MAVEN_SNAPSHOT_TOKEN);
099 Version version = new Version();
100 version.setSnapshot(snapshot);
101 String[] tokens = StringUtils.split(s, ".-");
102 if (tokens.length > 0) {
103 version.setMajor(tokens[0]);
104 }
105 if (tokens.length > 1) {
106 version.setMinor(tokens[1]);
107 }
108 if (tokens.length > 2) {
109 version.setIncremental(tokens[2]);
110 }
111 String qualifier = getQualifier(tokens);
112 version.setQualifier(qualifier);
113 return version;
114 }
115
116 protected String getQualifier(String[] tokens) {
117 if (tokens.length <= 3) {
118 return null;
119 }
120 StringBuilder sb = new StringBuilder();
121 for (int i = 3; i < tokens.length; i++) {
122 if (tokens[i].toUpperCase().equals(MAVEN_SNAPSHOT_TOKEN)) {
123 break;
124 }
125 if (i != 3) {
126 sb.append("-");
127 }
128 sb.append(tokens[i]);
129 }
130 return sb.toString();
131 }
132
133 protected String getProperty(String key) {
134 String sys = System.getProperty(key);
135 String proj = project.getProperties().getProperty(key);
136 if (!StringUtils.isBlank(sys)) {
137 return sys;
138 } else {
139 return proj;
140 }
141
142 }
143
144 public String[] getProperties() {
145 return properties;
146 }
147
148 public void setProperties(String[] properties) {
149 this.properties = properties;
150 }
151
152 public boolean isSilent() {
153 return silent;
154 }
155
156 public void setSilent(boolean silent) {
157 this.silent = silent;
158 }
159 }