package org.apache.maven.archiva.configuration;

 /*

  * 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.lang.reflect.Field;

 import java.util.ArrayList;

 import java.util.Arrays;

 import java.util.Collections;

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

 import org.apache.commons.collections.CollectionUtils;

 import org.apache.commons.collections.Predicate;

 import org.apache.commons.configuration.CombinedConfiguration;

 import org.apache.maven.archiva.common.utils.Slf4JPlexusLogger;

 import org.apache.maven.archiva.configuration.functors.FiletypeSelectionPredicate;

 import org.apache.maven.archiva.configuration.io.registry.ConfigurationRegistryReader;

 import org.codehaus.plexus.personality.plexus.lifecycle.phase.Initializable;

 import org.codehaus.plexus.personality.plexus.lifecycle.phase.InitializationException;

 import org.codehaus.plexus.registry.Registry;

 import org.codehaus.plexus.registry.RegistryException;

 import org.codehaus.plexus.registry.RegistryListener;

 import org.codehaus.plexus.registry.commons.CommonsConfigurationRegistry;

 import org.codehaus.plexus.util.SelectorUtils;

 /**

  * FileTypes 

  *

  * @version $Id: FileTypes.java 825390 2009-10-15 04:41:43Z brett $

  * 

  * @plexus.component role="org.apache.maven.archiva.configuration.FileTypes"

  */

 public class FileTypes

     implements Initializable, RegistryListener

 {

     public static final String ARTIFACTS = "artifacts";

     public static final String AUTO_REMOVE = "auto-remove";

     public static final String INDEXABLE_CONTENT = "indexable-content";

     public static final String IGNORED = "ignored";

     /**

      * @plexus.requirement

      */

     private ArchivaConfiguration archivaConfiguration;

     /**

      * Map of default values for the file types.

      */

     private Map<String, List<String>> defaultTypeMap = new HashMap<String, List<String>>();

     private List<String> artifactPatterns;

     /**

      * Default exclusions from artifact consumers that are using the file types. Note that this is simplistic in the

      * case of the support files (based on extension) as it is elsewhere - it may be better to match these to actual

      * artifacts and exclude later during scanning.

      */

     public static final List<String> DEFAULT_EXCLUSIONS =

         Arrays.asList( "**/maven-metadata.xml", "**/maven-metadata-*.xml", "**/*.sha1", "**/*.asc", "**/*.md5",

                        "**/*.pgp", "**/.index/**", "**/.indexer/**" );

     public void setArchivaConfiguration( ArchivaConfiguration archivaConfiguration )

     {

         this.archivaConfiguration = archivaConfiguration;

     }

     /**

      * <p>

      * Get the list of patterns for a specified filetype.

      * </p>

      *

      * <p>

      * You will always get a list.  In this order.

      *   <ul>

      *     <li>The Configured List</li>

      *     <li>The Default List</li>

      *     <li>A single item list of <code>"**<span>/</span>*"</code></li>

      *   </ul>

      * </p>

      *

      * @param id the id to lookup.

      * @return the list of patterns.

      */

     public List<String> getFileTypePatterns( String id )

     {

         Configuration config = archivaConfiguration.getConfiguration();

         Predicate selectedFiletype = new FiletypeSelectionPredicate( id );

         FileType filetype = (FileType) CollectionUtils.find( config.getRepositoryScanning().getFileTypes(),

                                                              selectedFiletype );

         if ( ( filetype != null ) && CollectionUtils.isNotEmpty( filetype.getPatterns() ) )

         {

             return filetype.getPatterns();

         }

         List<String> defaultPatterns = defaultTypeMap.get( id );

         if ( CollectionUtils.isEmpty( defaultPatterns ) )

         {

             return Collections.singletonList( "**/*" );

         }

         return defaultPatterns;

     }

     public synchronized boolean matchesArtifactPattern( String relativePath )

     {

         // Correct the slash pattern.

         relativePath = relativePath.replace( '\\', '/' );

         if ( artifactPatterns == null )

         {

             artifactPatterns = getFileTypePatterns( ARTIFACTS );

         }

         for ( String pattern : artifactPatterns )

         {

             if ( SelectorUtils.matchPath( pattern, relativePath, false ) )

             {

                 // Found match

                 return true;

             }

         }

         // No match.

         return false;

     }

     public boolean matchesDefaultExclusions( String relativePath )

     {

         // Correct the slash pattern.

         relativePath = relativePath.replace( '\\', '/' );

         for ( String pattern : DEFAULT_EXCLUSIONS )

         {

             if ( SelectorUtils.matchPath( pattern, relativePath, false ) )

             {

                 // Found match

                 return true;

             }

         }

         // No match.

         return false;

     }

     public void initialize()

         throws InitializationException

     {

         // TODO: why is this done by hand?

         // TODO: ideally, this would be instantiated by configuration instead, and not need to be a component

         String errMsg = "Unable to load default archiva configuration for FileTypes: ";

         try

         {

             CommonsConfigurationRegistry commonsRegistry = new CommonsConfigurationRegistry();

             // Configure commonsRegistry

             Field fld = commonsRegistry.getClass().getDeclaredField( "configuration" );

             fld.setAccessible( true );

             fld.set( commonsRegistry, new CombinedConfiguration() );

             commonsRegistry.enableLogging( new Slf4JPlexusLogger( FileTypes.class ) );

             commonsRegistry.addConfigurationFromResource( "org/apache/maven/archiva/configuration/default-archiva.xml" );

             // Read configuration as it was intended.

             ConfigurationRegistryReader configReader = new ConfigurationRegistryReader();

             Configuration defaultConfig = configReader.read( commonsRegistry );

             initialiseTypeMap( defaultConfig );

         }

         catch ( RegistryException e )

         {

             throw new InitializationException( errMsg + e.getMessage(), e );

         }

         catch ( SecurityException e )

         {

             throw new InitializationException( errMsg + e.getMessage(), e );

         }

         catch ( NoSuchFieldException e )

         {

             throw new InitializationException( errMsg + e.getMessage(), e );

         }

         catch ( IllegalArgumentException e )

         {

             throw new InitializationException( errMsg + e.getMessage(), e );

         }

         catch ( IllegalAccessException e )

         {

             throw new InitializationException( errMsg + e.getMessage(), e );

         }

         this.archivaConfiguration.addChangeListener( this );

     }

     private void initialiseTypeMap( Configuration configuration )

     {

         defaultTypeMap.clear();

         // Store the default file type declaration.

         List<FileType> filetypes = configuration.getRepositoryScanning().getFileTypes();

         for ( FileType filetype : filetypes )

         {

             List<String> patterns = defaultTypeMap.get( filetype.getId() );

             if ( patterns == null )

             {

                 patterns = new ArrayList<String>();

             }

             patterns.addAll( filetype.getPatterns() );

             defaultTypeMap.put( filetype.getId(), patterns );

         }

     }

     public void afterConfigurationChange( Registry registry, String propertyName, Object propertyValue )

     {

         if ( propertyName.contains( "fileType" ) )

         {

             artifactPatterns = null;

             initialiseTypeMap( archivaConfiguration.getConfiguration() );

         }

     }

     public void beforeConfigurationChange( Registry registry, String propertyName, Object propertyValue )

     {

         /* nothing to do */

     }

 }