/*
* 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.
*/
package npanday.registry;
import org.openrdf.repository.RepositoryException;
import org.openrdf.repository.sail.SailRepository;
import org.openrdf.sail.memory.MemoryStore;
import org.apache.maven.artifact.factory.ArtifactFactory;
import java.io.InputStream;
import java.io.IOException;
import java.io.File;
import java.util.Hashtable;
import java.util.Set;
import java.util.HashSet;
import java.util.Collections;
import java.util.logging.Logger;
/**
* Repository for obtaining sets of DAOs.
*/
public class ConnectionsRepository
implements Repository
{
private static Logger logger = Logger.getAnonymousLogger();
private RepositoryRegistry registry;
private Set<DataAccessObject> daos = new HashSet<DataAccessObject>();
private Hashtable properties;
/**
* The artifact factory component, which is used for creating artifacts.
*/
private ArtifactFactory artifactFactory;
/**
* Loads all the data access objects. This is considered a lazy load because the framework (plexus) invoke the
* ConnectionsRepository.load method, which in this case does nothing more than set the properties. It is up to the
* developer to explicitly call the lazy load method. This is done for performance reasons.
*
* @throws NPandayRepositoryException if there is a problem loading the DAOs
*/
public void lazyLoad() throws NPandayRepositoryException
{
long start = System.currentTimeMillis();
File dataDir = new File( System.getProperty( "user.home" ), ".m2/repository" );
MemoryStore store = new MemoryStore( dataDir );
store.setPersist( true );
store.setSyncDelay( 0 );
org.openrdf.repository.Repository rdfRepository = new SailRepository( store );
try
{
rdfRepository.initialize();
}
catch ( RepositoryException e )
{
throw new NPandayRepositoryException("NPANDAY-080-005: Failed to initialized repository. Message = " + e.getMessage(), e );
}
Set<String> keys = properties.keySet();
for ( String keyName : keys )
{
if ( keyName.trim().startsWith( "dao:" ) )
{
String daoClassName = (String) properties.get( keyName );
try
{
Class c = Class.forName( daoClassName );
Object o = c.getConstructor().newInstance();
if ( !( o instanceof DataAccessObject ) )
{
throw new NPandayRepositoryException(
"NPANDAY-080-000: dao tag references a class that does not implement the DataAccessObject interface." );
}
DataAccessObject dao = (DataAccessObject) o;
dao.init( rdfRepository, keyName, daoClassName );
dao.setRepositoryRegistry( registry );
daos.add( dao );
logger.finest( "NPANDAY-080-001: Adding data access object: Class Name = " + daoClassName );
}
catch ( Exception e )
{
throw new NPandayRepositoryException(
"NPANDAY-080-002: Problem instantiating the DAO Class: Class Name = " + daoClassName, e );
}
catch ( Error e )
{
throw new NPandayRepositoryException(
"NPANDAY-080-003: Problem instantiating the DAO Class: Class Name = " + daoClassName, e );
}
}
}
logger.finest( "NPANDAY-080-004: Connection Start Up: Time = " + ( System.currentTimeMillis() - start ) );
}
/**
* @see Repository#load(java.io.InputStream, java.util.Hashtable)
*/
public void load( InputStream inputStream, Hashtable properties )
throws NPandayRepositoryException
{
this.properties = properties;
}
/**
* @see Repository#setRepositoryRegistry(RepositoryRegistry)
*/
public void setRepositoryRegistry( RepositoryRegistry repositoryRegistry )
{
this.registry = repositoryRegistry;
}
/**
* @see Repository#setSourceUri(String)
*/
public void setSourceUri( String fileUri )
{
// not supported
}
/**
* @see Repository#reload()
*/
public void reload()
{
// not supported
}
/**
* Returns unmodifiable set of all data access objects.
*
* @return unmodifiable set of all data access objects
*/
public Set<DataAccessObject> getDataAccessObjects()
{
return Collections.unmodifiableSet( daos );
}
}