| package org.apache.maven.plugins.enforcer; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import java.util.Arrays; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.apache.commons.lang3.SystemUtils; |
| import org.apache.maven.artifact.versioning.ArtifactVersion; |
| import org.apache.maven.artifact.versioning.DefaultArtifactVersion; |
| import org.apache.maven.enforcer.rule.api.EnforcerRuleException; |
| import org.apache.maven.enforcer.rule.api.EnforcerRuleHelper; |
| import org.apache.maven.plugin.logging.Log; |
| import org.codehaus.plexus.util.StringUtils; |
| |
| /** |
| * This rule checks that the Java version is allowed. |
| * |
| * @author <a href="mailto:brianf@apache.org">Brian Fox</a> |
| */ |
| public class RequireJavaVersion |
| extends AbstractVersionEnforcer |
| { |
| @Override |
| public void execute( EnforcerRuleHelper helper ) |
| throws EnforcerRuleException |
| { |
| String javaVersion = SystemUtils.JAVA_VERSION; |
| Log log = helper.getLog(); |
| |
| log.debug( "Detected Java String: '" + javaVersion + "'" ); |
| javaVersion = normalizeJDKVersion( javaVersion ); |
| log.debug( "Normalized Java String: '" + javaVersion + "'" ); |
| |
| ArtifactVersion detectedJdkVersion = new DefaultArtifactVersion( javaVersion ); |
| |
| log.debug( "Parsed Version: Major: " + detectedJdkVersion.getMajorVersion() + " Minor: " |
| + detectedJdkVersion.getMinorVersion() + " Incremental: " + detectedJdkVersion.getIncrementalVersion() |
| + " Build: " + detectedJdkVersion.getBuildNumber() + " Qualifier: " + detectedJdkVersion.getQualifier() ); |
| |
| enforceVersion( helper.getLog(), "JDK", getVersion(), detectedJdkVersion ); |
| } |
| |
| /** |
| * Converts a jdk string from 1.5.0-11b12 to a single 3 digit version like 1.5.0-11 |
| * |
| * @param theJdkVersion to be converted. |
| * @return the converted string. |
| */ |
| public static String normalizeJDKVersion( String theJdkVersion ) |
| { |
| |
| theJdkVersion = theJdkVersion.replaceAll( "_|-", "." ); |
| String tokenArray[] = StringUtils.split( theJdkVersion, "." ); |
| List<String> tokens = Arrays.asList( tokenArray ); |
| StringBuilder buffer = new StringBuilder( theJdkVersion.length() ); |
| |
| Iterator<String> iter = tokens.iterator(); |
| for ( int i = 0; i < tokens.size() && i < 4; i++ ) |
| { |
| String section = iter.next(); |
| section = section.replaceAll( "[^0-9]", "" ); |
| |
| if ( StringUtils.isNotEmpty( section ) ) |
| { |
| buffer.append( Integer.parseInt( section ) ); |
| |
| if ( i != 2 ) |
| { |
| buffer.append( '.' ); |
| } |
| else |
| { |
| buffer.append( '-' ); |
| } |
| } |
| } |
| |
| String version = buffer.toString(); |
| version = StringUtils.stripEnd( version, "-" ); |
| return StringUtils.stripEnd( version, "." ); |
| } |
| } |