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.Date;
  24 import java.util.List;
  25
  26 import org.apache.commons.collections.Closure;
  27 import org.apache.commons.collections.CollectionUtils;
  28 import org.apache.commons.collections.functors.IfClosure;
  29 import org.apache.commons.lang.SystemUtils;
  30 import org.apache.maven.archiva.common.utils.BaseFile;
  31 import org.apache.maven.archiva.configuration.ManagedRepositoryConfiguration;
  32 import org.apache.maven.archiva.consumers.InvalidRepositoryContentConsumer;
  33 import org.apache.maven.archiva.consumers.KnownRepositoryContentConsumer;
  34 import org.apache.maven.archiva.repository.scanner.functors.ConsumerProcessFileClosure;
  35 import org.apache.maven.archiva.repository.scanner.functors.ConsumerWantsFilePredicate;
  36 import org.apache.maven.archiva.repository.scanner.functors.TriggerBeginScanClosure;
  37 import org.apache.maven.archiva.repository.scanner.functors.TriggerScanCompletedClosure;
  38 import org.codehaus.plexus.util.DirectoryWalkListener;
  39 import org.slf4j.Logger;
  40 import org.slf4j.LoggerFactory;
  41 /**
  42  * RepositoryScannerInstance
  43  *
  44  * @version $Id$
  45  */
  46 public class RepositoryScannerInstance
  47     implements DirectoryWalkListener
  48 {
  49     private Logger log = LoggerFactory.getLogger( RepositoryScannerInstance.class );
  50
  51     /**
  52      * Consumers that process known content.
  53      */
  54     private List<KnownRepositoryContentConsumer> knownConsumers;
  55
  56     /**
  57      * Consumers that process unknown/invalid content.
  58      */
  59     private List<InvalidRepositoryContentConsumer> invalidConsumers;
  60
  61     private ManagedRepositoryConfiguration repository;
  62
  63     private RepositoryScanStatistics stats;
  64
  65     private long changesSince = 0;
  66
  67     private ConsumerProcessFileClosure consumerProcessFile;
  68
  69     private ConsumerWantsFilePredicate consumerWantsFile;
  70
  71     public RepositoryScannerInstance( ManagedRepositoryConfiguration repository,
  72                                       List<KnownRepositoryContentConsumer> knownConsumerList,
  73                                       List<InvalidRepositoryContentConsumer> invalidConsumerList )
  74     {
  75         this.repository = repository;
  76         this.knownConsumers = knownConsumerList;
  77         this.invalidConsumers = invalidConsumerList;
  78
  79         this.consumerProcessFile = new ConsumerProcessFileClosure();
  80         this.consumerWantsFile = new ConsumerWantsFilePredicate();
  81
  82         stats = new RepositoryScanStatistics();
  83         stats.setRepositoryId( repository.getId() );
  84
  85         Closure triggerBeginScan = new TriggerBeginScanClosure( repository, new Date( System.currentTimeMillis() ) );
  86
  87         CollectionUtils.forAllDo( knownConsumerList, triggerBeginScan );
  88         CollectionUtils.forAllDo( invalidConsumerList, triggerBeginScan );
  89
  90         if ( SystemUtils.IS_OS_WINDOWS )
  91         {
  92             consumerWantsFile.setCaseSensitive( false );
  93         }
  94
  95         TriggerScanCompletedClosure scanCompletedClosure = new TriggerScanCompletedClosure(repository);
  96
  97         CollectionUtils.forAllDo(knownConsumers, scanCompletedClosure);
  98         CollectionUtils.forAllDo(invalidConsumerList, scanCompletedClosure);
  99     }
 100
 101     public RepositoryScannerInstance( ManagedRepositoryConfiguration repository,
 102                                       List<KnownRepositoryContentConsumer> knownContentConsumers,
 103                                       List<InvalidRepositoryContentConsumer> invalidContentConsumers, long changesSince )
 104     {
 105         this( repository, knownContentConsumers, invalidContentConsumers );
 106
 107         consumerWantsFile.setChangesSince( changesSince );
 108
 109         this.changesSince = changesSince;
 110     }
 111
 112     public RepositoryScanStatistics getStatistics()
 113     {
 114         return stats;
 115     }
 116
 117     public void directoryWalkStarting( File basedir )
 118     {
 119         log.info( "Walk Started: [" + this.repository.getId() + "] " + this.repository.getLocation() );
 120         stats.triggerStart();
 121     }
 122
 123     public void directoryWalkStep( int percentage, File file )
 124     {
 125         log.debug( "Walk Step: " + percentage + ", " + file );
 126
 127         stats.increaseFileCount();
 128
 129         // consume files regardless - the predicate will check the timestamp
 130         BaseFile basefile = new BaseFile( repository.getLocation(), file );
 131
 132         // Timestamp finished points to the last successful scan, not this current one.
 133         if ( file.lastModified() >= changesSince )
 134         {
 135             stats.increaseNewFileCount();
 136         }
 137
 138         consumerProcessFile.setBasefile( basefile );
 139         consumerWantsFile.setBasefile( basefile );
 140
 141         Closure processIfWanted = IfClosure.getInstance( consumerWantsFile, consumerProcessFile );
 142         CollectionUtils.forAllDo( this.knownConsumers, processIfWanted );
 143
 144         if ( consumerWantsFile.getWantedFileCount() <= 0 )
 145         {
 146             // Nothing known processed this file.  It is invalid!
 147             CollectionUtils.forAllDo( this.invalidConsumers, consumerProcessFile );
 148         }
 149     }
 150
 151     public void directoryWalkFinished()
 152     {
 153         log.info( "Walk Finished: [" + this.repository.getId() + "] " + this.repository.getLocation() );
 154         stats.triggerFinished();
 155     }
 156
 157     /**
 158      * Debug method from DirectoryWalker.
 159      */
 160     public void debug( String message )
 161     {
 162         log.debug( "Repository Scanner: " + message );
 163     }
 164
 165 }