source.dussan.org Git - archiva.git/blob

   1 package org.apache.maven.archiva.repository.scanner;
   2
   3 /*
   4  * Licensed to the Apache Software Foundation (ASF) under one
   5  * or more contributor license agreements.  See the NOTICE file
   6  * distributed with this work for additional information
   7  * regarding copyright ownership.  The ASF licenses this file
   8  * to you under the Apache License, Version 2.0 (the
   9  * "License"); you may not use this file except in compliance
  10  * with the License.  You may obtain a copy of the License at
  11  *
  12  *  http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing,
  15  * software distributed under the License is distributed on an
  16  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  17  * KIND, either express or implied.  See the License for the
  18  * specific language governing permissions and limitations
  19  * under the License.
  20  */
  21
  22 import java.io.File;
  23 import java.util.List;
  24
  25 import org.apache.commons.collections.Closure;
  26 import org.apache.commons.collections.CollectionUtils;
  27 import org.apache.commons.collections.functors.IfClosure;
  28 import org.apache.commons.lang.SystemUtils;
  29 import org.apache.maven.archiva.common.utils.BaseFile;
  30 import org.apache.maven.archiva.configuration.ManagedRepositoryConfiguration;
  31 import org.apache.maven.archiva.consumers.InvalidRepositoryContentConsumer;
  32 import org.apache.maven.archiva.consumers.KnownRepositoryContentConsumer;
  33 import org.apache.maven.archiva.repository.scanner.functors.ConsumerProcessFileClosure;
  34 import org.apache.maven.archiva.repository.scanner.functors.ConsumerWantsFilePredicate;
  35 import org.apache.maven.archiva.repository.scanner.functors.TriggerBeginScanClosure;
  36 import org.codehaus.plexus.util.DirectoryWalkListener;
  37 import org.slf4j.Logger;
  38 import org.slf4j.LoggerFactory;
  39 /**
  40  * RepositoryScannerInstance
  41  *
  42  * @author <a href="mailto:joakime@apache.org">Joakim Erdfelt</a>
  43  * @version $Id$
  44  */
  45 public class RepositoryScannerInstance
  46     implements DirectoryWalkListener
  47 {
  48     private Logger log = LoggerFactory.getLogger( RepositoryScannerInstance.class );
  49
  50     /**
  51      * Consumers that process known content.
  52      */
  53     private List<KnownRepositoryContentConsumer> knownConsumers;
  54
  55     /**
  56      * Consumers that process unknown/invalid content.
  57      */
  58     private List<InvalidRepositoryContentConsumer> invalidConsumers;
  59
  60     private ManagedRepositoryConfiguration repository;
  61
  62     private RepositoryScanStatistics stats;
  63
  64     private long changesSince = 0;
  65
  66     private ConsumerProcessFileClosure consumerProcessFile;
  67
  68     private ConsumerWantsFilePredicate consumerWantsFile;
  69
  70     public RepositoryScannerInstance( ManagedRepositoryConfiguration repository,
  71                                       List<KnownRepositoryContentConsumer> knownConsumerList,
  72                                       List<InvalidRepositoryContentConsumer> invalidConsumerList )
  73     {
  74         this.repository = repository;
  75         this.knownConsumers = knownConsumerList;
  76         this.invalidConsumers = invalidConsumerList;
  77
  78         this.consumerProcessFile = new ConsumerProcessFileClosure();
  79         this.consumerWantsFile = new ConsumerWantsFilePredicate();
  80
  81         stats = new RepositoryScanStatistics();
  82         stats.setRepositoryId( repository.getId() );
  83
  84         Closure triggerBeginScan = new TriggerBeginScanClosure( repository );
  85
  86         CollectionUtils.forAllDo( knownConsumerList, triggerBeginScan );
  87         CollectionUtils.forAllDo( invalidConsumerList, triggerBeginScan );
  88
  89         if ( SystemUtils.IS_OS_WINDOWS )
  90         {
  91             consumerWantsFile.setCaseSensitive( false );
  92         }
  93     }
  94
  95     public RepositoryScannerInstance( ManagedRepositoryConfiguration repository,
  96                                       List<KnownRepositoryContentConsumer> knownContentConsumers,
  97                                       List<InvalidRepositoryContentConsumer> invalidContentConsumers, long changesSince )
  98     {
  99         this( repository, knownContentConsumers, invalidContentConsumers );
 100
 101         consumerWantsFile.setChangesSince( changesSince );
 102
 103         this.changesSince = changesSince;
 104     }
 105
 106     public RepositoryScanStatistics getStatistics()
 107     {
 108         return stats;
 109     }
 110
 111     public void directoryWalkStarting( File basedir )
 112     {
 113         log.info( "Walk Started: [" + this.repository.getId() + "] " + this.repository.getLocation() );
 114         stats.triggerStart();
 115     }
 116
 117     public void directoryWalkStep( int percentage, File file )
 118     {
 119         log.debug( "Walk Step: " + percentage + ", " + file );
 120
 121         stats.increaseFileCount();
 122
 123         // Timestamp finished points to the last successful scan, not this current one.
 124         if ( file.lastModified() >= changesSince )
 125         {
 126             stats.increaseNewFileCount();
 127         }
 128
 129         // consume files regardless - the predicate will check the timestamp
 130         BaseFile basefile = new BaseFile( repository.getLocation(), file );
 131
 132         consumerProcessFile.setBasefile( basefile );
 133         consumerWantsFile.setBasefile( basefile );
 134
 135         Closure processIfWanted = IfClosure.getInstance( consumerWantsFile, consumerProcessFile );
 136         CollectionUtils.forAllDo( this.knownConsumers, processIfWanted );
 137
 138         if ( consumerWantsFile.getWantedFileCount() <= 0 )
 139         {
 140             // Nothing known processed this file.  It is invalid!
 141             CollectionUtils.forAllDo( this.invalidConsumers, consumerProcessFile );
 142         }
 143     }
 144
 145     public void directoryWalkFinished()
 146     {
 147         log.info( "Walk Finished: [" + this.repository.getId() + "] " + this.repository.getLocation() );
 148         stats.triggerFinished();
 149     }
 150
 151     /**
 152      * Debug method from DirectoryWalker.
 153      */
 154     public void debug( String message )
 155     {
 156         log.debug( "Repository Scanner: " + message );
 157     }
 158 }