| package org.apache.maven.shared.jar.identification.exposers; |
| |
| /* |
| * 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 org.apache.commons.collections4.Bag; |
| import org.apache.commons.collections4.bag.HashBag; |
| import org.apache.maven.shared.jar.JarAnalyzer; |
| import org.apache.maven.shared.jar.identification.JarIdentification; |
| import org.apache.maven.shared.jar.identification.JarIdentificationExposer; |
| import org.apache.maven.shared.utils.StringUtils; |
| |
| import java.text.SimpleDateFormat; |
| import java.util.Date; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.jar.JarEntry; |
| |
| /** |
| * Exposer that examines a a JAR and uses the most recent timestamp as a potential version. |
| * |
| * @plexus.component role="org.apache.maven.shared.jar.identification.JarIdentificationExposer" role-hint="timestamp" |
| */ |
| public class TimestampExposer |
| implements JarIdentificationExposer |
| { |
| public void expose( JarIdentification identification, JarAnalyzer jarAnalyzer ) |
| { |
| List<JarEntry> entries = jarAnalyzer.getEntries(); |
| SimpleDateFormat tsformat = new SimpleDateFormat( "yyyyMMdd", Locale.US ); //$NON-NLS-1$ |
| Bag<String> timestamps = new HashBag<>(); |
| for ( JarEntry entry : entries ) |
| { |
| long time = entry.getTime(); |
| String timestamp = tsformat.format( new Date( time ) ); |
| timestamps.add( timestamp ); |
| } |
| |
| String ts = ""; |
| int tsmax = 0; |
| for ( String timestamp : timestamps ) |
| { |
| int count = timestamps.getCount( timestamp ); |
| if ( count > tsmax ) |
| { |
| ts = timestamp; |
| tsmax = count; |
| } |
| } |
| |
| if ( StringUtils.isNotEmpty( ts ) ) |
| { |
| identification.addVersion( ts ); |
| } |
| } |
| } |