package org.apache.archiva.repository.base;
   
   /*
    * 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 com.cronutils.model.CronType;
  import com.cronutils.model.definition.CronDefinition;
  import com.cronutils.model.definition.CronDefinitionBuilder;
  import com.cronutils.parser.CronParser;
  import org.apache.archiva.event.Event;
  import org.apache.archiva.event.EventHandler;
  import org.apache.archiva.event.EventManager;
  import org.apache.archiva.event.EventType;
  import org.apache.archiva.indexer.ArchivaIndexingContext;
  import org.apache.archiva.repository.EditableRepository;
  import org.apache.archiva.repository.RepositoryCapabilities;
  import org.apache.archiva.repository.RepositoryType;
  import org.apache.archiva.repository.UnsupportedFeatureException;
  import org.apache.archiva.repository.event.*;
  import org.apache.archiva.repository.storage.RepositoryStorage;
  import org.apache.archiva.repository.storage.StorageAsset;
  import org.apache.archiva.repository.features.RepositoryFeature;
  import org.apache.archiva.repository.features.StagingRepositoryFeature;
  import org.apache.commons.lang3.StringUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  import java.net.URI;
  import java.nio.channels.ReadableByteChannel;
  import java.nio.channels.WritableByteChannel;
  import java.nio.file.CopyOption;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Locale;
  import java.util.Map;
  import java.util.Set;
  import java.util.concurrent.atomic.AtomicBoolean;
  import java.util.function.Consumer;
  
  /**
   * Implementation of a repository with the necessary fields for a bare repository.
   * No features are provided. Capabilities and features must be implemented by concrete classes.
   *
   */
  public abstract class AbstractRepository implements EditableRepository, EventHandler<RepositoryEvent>
  {
  
  
      Logger log = LoggerFactory.getLogger(AbstractRepository.class);
  
      private final AtomicBoolean openStatus = new AtomicBoolean(false);
  
  
      private final RepositoryType type;
      private final String id;
      private Map<Locale, String> names = new HashMap<>(  );
      private Map<Locale, String> descriptions = new HashMap<>(  );
  
      private Locale primaryLocale = new Locale("en_US");
      protected URI location;
      private URI baseUri;
      private Set<URI> failoverLocations = new HashSet<>(  );
      private Set<URI> uFailoverLocations = Collections.unmodifiableSet( failoverLocations );
      private boolean scanned = true;
      String schedulingDefinition = "0 0 02 * * ?";
      private String layout = "default";
      public static final CronDefinition CRON_DEFINITION = CronDefinitionBuilder.instanceDefinitionFor(CronType.QUARTZ);
  
      private final EventManager eventManager;
  
      Map<Class<? extends RepositoryFeature<?>>, RepositoryFeature<?>> featureMap = new HashMap<>(  );
  
      private ArchivaIndexingContext indexingContext;
      private RepositoryStorage storage;
  
      public AbstractRepository(RepositoryType type, String id, String name, RepositoryStorage repositoryStorage) {
          this.id = id;
          this.names.put( primaryLocale, name);
          this.type = type;
         this.storage = repositoryStorage;
         this.location = repositoryStorage.getLocation();
         this.openStatus.compareAndSet(false, true);
         this.eventManager = new EventManager(this);
     }
 
     public AbstractRepository(Locale primaryLocale, RepositoryType type, String id, String name, RepositoryStorage repositoryStorage) {
         setPrimaryLocale( primaryLocale );
         this.id = id;
         this.names.put( primaryLocale, name);
         this.type = type;
         this.storage = repositoryStorage;
         this.location = repositoryStorage.getLocation();
         this.openStatus.compareAndSet(false, true);
         this.eventManager = new EventManager(this);
     }
 
     protected void setPrimaryLocale(Locale locale) {
         this.primaryLocale = locale;
     }
 
     @Override
     public String getId( )
     {
         return id;
     }
 
     @Override
     public String getName( )
     {
         return getName( primaryLocale );
     }
 
     @Override
     public String getName( Locale locale )
     {
         return names.get(locale);
     }
 
     @Override
     public String getDescription( )
     {
         return getDescription( primaryLocale );
     }
 
     @Override
     public String getDescription( Locale locale )
     {
         return descriptions.get(primaryLocale);
     }
 
     @Override
     public RepositoryType getType( )
     {
         return type;
     }
 
     @Override
     public URI getLocation( )
     {
         return location;
     }
 
     @Override
     public StorageAsset getLocalPath() {
         return storage.getAsset("");
     }
 
     @Override
     public Set<URI> getFailoverLocations( )
     {
         return uFailoverLocations;
     }
 
     @Override
     public boolean isScanned( )
     {
         return scanned;
     }
 
     @Override
     public String getSchedulingDefinition( )
     {
         return schedulingDefinition;
     }
 
     @Override
     public abstract boolean hasIndex( );
 
     @Override
     public String getLayout( )
     {
         return layout;
     }
 
     @Override
     public abstract RepositoryCapabilities getCapabilities( );
 
     @SuppressWarnings( "unchecked" )
     @Override
     public <T extends RepositoryFeature<T>> RepositoryFeature<T> getFeature( Class<T> clazz ) throws UnsupportedFeatureException
     {
         if (featureMap.containsKey( clazz )) {
             return (RepositoryFeature<T>) featureMap.get(clazz);
         } else
         {
             throw new UnsupportedFeatureException( "Feature " + clazz + " not supported" );
         }
     }
 
     @Override
     public <T extends RepositoryFeature<T>> boolean supportsFeature( Class<T> clazz )
     {
         return featureMap.containsKey( clazz );
     }
 
     @Override
     public Locale getPrimaryLocale( )
     {
         return primaryLocale;
     }
 
     @Override
     public void setName( Locale locale, String name )
     {
         names.put(locale, name);
     }
 
     @Override
     public void setDescription( Locale locale, String description )
     {
         descriptions.put(locale, description);
     }
 
     @Override
     public void setLocation( final URI location )
     {
         if (location!=null && ( this.location == null || !this.location.equals(location))) {
             try {
                 updateLocation(location);
             } catch (IOException e) {
                 log.error("Could not update location of repository {} to {}", getId(), location, e);
             }
         }
     }
 
     @Override
     public void updateLocation(URI newLocation) throws IOException {
         storage.updateLocation(newLocation);
         this.location = newLocation;
     }
 
     @Override
     public void addFailoverLocation( URI location )
     {
         this.failoverLocations.add(location);
     }
 
     @Override
     public void removeFailoverLocation( URI location )
     {
         this.failoverLocations.remove( location );
     }
 
     @Override
     public void clearFailoverLocations( )
     {
         this.failoverLocations.clear();
     }
 
     @Override
     public void setScanned( boolean scanned )
     {
         this.scanned = scanned;
     }
 
     @Override
     public void setLayout( String layout )
     {
         this.layout = layout;
     }
 
     @Override
     public void setBaseUri(URI baseUri) {
         this.baseUri = baseUri;
     }
 
     @Override
     public void setSchedulingDefinition(String cronExpression) {
         if (StringUtils.isNotEmpty( cronExpression ))
         {
             CronParser parser = new CronParser( CRON_DEFINITION );
             parser.parse( cronExpression ).validate( );
         }
         this.schedulingDefinition = cronExpression;
     }
 
     @SuppressWarnings( "unchecked" )
     protected <T extends RepositoryFeature<T>> void addFeature(RepositoryFeature<T> feature) {
        featureMap.put( (Class<? extends RepositoryFeature<?>>) feature.getClass(), feature);
     }
 
     @Override
     public void setIndexingContext(ArchivaIndexingContext context) {
         if (this.indexingContext!=null) {
 
         }
         this.indexingContext = context;
     }
 
     @Override
     public ArchivaIndexingContext getIndexingContext() {
         return indexingContext;
     }
 
     @Override
     public void close() {
         if (this.openStatus.compareAndSet(true, false)) {
             ArchivaIndexingContext ctx = getIndexingContext();
             if (ctx != null) {
                 try {
                     ctx.close();
                 } catch (IOException e) {
                     log.warn("Error during index context close.", e);
                 }
                 this.indexingContext = null;
 
             }
             if (supportsFeature(StagingRepositoryFeature.class)) {
                 StagingRepositoryFeature sf = getFeature(StagingRepositoryFeature.class).get();
                 if (sf.getStagingRepository() != null) {
                     sf.getStagingRepository().close();
                 }
             }
         }
 
     }
 
     @Override
     public boolean isOpen() {
         return openStatus.get();
     }
 
     @Override
     public void handle(RepositoryEvent event) {
         // We just rethrow the events
         eventManager.fireEvent(event);
     }
 
     @Override
     public <T extends Event> void registerEventHandler( EventType<T> eventType, EventHandler<? super T> eventHandler) {
         if (!EventType.isInstanceOf(eventType, RepositoryEvent.ANY)) {
             throw new IllegalArgumentException("Can only register RepositoryEvent Handlers");
         }
         eventManager.registerEventHandler(eventType, eventHandler);
     }
 
     @Override
     public <T extends Event> void unregisterEventHandler(EventType<T> type, EventHandler<? super T> eventHandler) {
         eventManager.unregisterEventHandler(type, eventHandler);
     }
 
     @Override
     public StorageAsset getAsset(String path )
     {
         return storage.getAsset(path);
     }
 
     @Override
     public StorageAsset addAsset( String path, boolean container )
     {
         return storage.addAsset(path, container);
     }
 
     @Override
     public void removeAsset( StorageAsset asset ) throws IOException
     {
         storage.removeAsset(asset);
     }
 
     @Override
     public StorageAsset./../../org/apache/archiva/repository/storage/StorageAsset.html#StorageAsset">StorageAsset moveAsset( StorageAsset origin, String destination, CopyOption... copyOptions ) throws IOException
     {
         return storage.moveAsset(origin, destination);
     }
 
     @Override
     public void moveAsset( StorageAsset./../../../org/apache/archiva/repository/storage/StorageAsset.html#StorageAsset">StorageAsset origin, StorageAsset destination, CopyOption... copyOptions ) throws IOException
     {
         storage.moveAsset( origin, destination, copyOptions );
     }
 
     @Override
     public StorageAsset./../../org/apache/archiva/repository/storage/StorageAsset.html#StorageAsset">StorageAsset copyAsset( StorageAsset origin, String destination, CopyOption... copyOptions ) throws IOException
     {
         return storage.copyAsset(origin, destination);
     }
 
     @Override
     public void copyAsset( StorageAsset./../../../org/apache/archiva/repository/storage/StorageAsset.html#StorageAsset">StorageAsset origin, StorageAsset destination, CopyOption... copyOptions ) throws IOException
     {
         storage.copyAsset( origin, destination, copyOptions);
     }
 
     @Override
     public void consumeData(StorageAsset asset, Consumer<InputStream> consumerFunction, boolean readLock ) throws IOException
     {
         storage.consumeData(asset, consumerFunction, readLock);
     }
 
     @Override
     public void consumeDataFromChannel( StorageAsset asset, Consumer<ReadableByteChannel> consumerFunction, boolean readLock ) throws IOException
     {
         storage.consumeDataFromChannel( asset, consumerFunction, readLock );
     }
 
     @Override
     public void writeData( StorageAsset asset, Consumer<OutputStream> consumerFunction, boolean writeLock ) throws IOException
     {
         storage.writeData( asset, consumerFunction, writeLock );
     }
 
     @Override
     public void writeDataToChannel( StorageAsset asset, Consumer<WritableByteChannel> consumerFunction, boolean writeLock ) throws IOException
     {
         storage.writeDataToChannel( asset, consumerFunction, writeLock );
     }
 
     protected void setStorage( RepositoryStorage storage) {
         this.storage = storage;
     }
 
     protected RepositoryStorage getStorage() {
         return storage;
     }
 }