/*
* 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 org.apache.felix.sigil.eclipse.internal.repository.manager;
import java.util.HashSet;
import java.util.Properties;
import org.apache.felix.sigil.common.repository.AbstractBundleRepository;
import org.apache.felix.sigil.common.repository.IBundleRepository;
import org.apache.felix.sigil.common.repository.IBundleRepositoryListener;
import org.apache.felix.sigil.common.repository.IRepositoryProvider;
import org.apache.felix.sigil.common.repository.IRepositoryVisitor;
import org.apache.felix.sigil.eclipse.internal.model.repository.RepositoryModel;
import org.apache.felix.sigil.eclipse.model.repository.IRepositoryModel;
import org.apache.felix.sigil.eclipse.model.repository.IRepositoryType;
/**
* @author dave
*
*/
public class EclipseBundleRepository extends AbstractBundleRepository implements IEclipseBundleRepository
{
private final IRepositoryProvider provider;
private final Properties properties;
private final IRepositoryType type;
private final HashSet<IBundleRepositoryListener> listeners = new HashSet<IBundleRepositoryListener>();
private Exception exception;
private IBundleRepository delegate;
/**
* @param provider
* @param type
* @param id
* @param properties
*/
public EclipseBundleRepository(IRepositoryProvider provider, IRepositoryType type, String id, Properties properties)
{
super(id);
this.provider = provider;
this.type = type;
this.properties = properties;
}
private synchronized IBundleRepository getDelegate() {
if (delegate == null && exception == null) {
try
{
delegate = provider.createRepository(getId(), properties);
for (IBundleRepositoryListener listener : listeners) {
delegate.addBundleRepositoryListener(listener);
}
exception = null;
}
catch (Exception e)
{
delegate = null;
exception = e;
}
}
return delegate;
}
/* (non-Javadoc)
* @see org.apache.felix.sigil.common.repository.IBundleRepository#accept(org.apache.felix.sigil.common.repository.IRepositoryVisitor, int)
*/
public void accept(IRepositoryVisitor visitor, int options)
{
IBundleRepository delegate = getDelegate();
if ( delegate != null ) {
delegate.accept(visitor, options);
}
}
/* (non-Javadoc)
* @see org.apache.felix.sigil.common.repository.IBundleRepository#addBundleRepositoryListener(org.apache.felix.sigil.common.repository.IBundleRepositoryListener)
*/
public synchronized void addBundleRepositoryListener(IBundleRepositoryListener listener)
{
IBundleRepository delegate = getDelegate();
if ( delegate != null ) {
delegate.addBundleRepositoryListener(listener);
}
else {
listeners.add(listener);
}
}
/* (non-Javadoc)
* @see org.apache.felix.sigil.common.repository.IBundleRepository#removeBundleRepositoryListener(org.apache.felix.sigil.common.repository.IBundleRepositoryListener)
*/
public synchronized void removeBundleRepositoryListener(IBundleRepositoryListener listener)
{
IBundleRepository delegate = getDelegate();
if ( delegate != null ) {
delegate.removeBundleRepositoryListener(listener);
}
else {
listeners.remove(listener);
}
}
/* (non-Javadoc)
* @see org.apache.felix.sigil.common.repository.IBundleRepository#refresh()
*/
public void refresh()
{
IBundleRepository delegate = getDelegate();
if ( delegate == null ) {
exception = null;
getDelegate();
}
else {
delegate.refresh();
}
}
/* (non-Javadoc)
* @see org.apache.felix.sigil.eclipse.internal.repository.manager.IEclipseBundleRepository#getModel()
*/
public IRepositoryModel getModel()
{
return new RepositoryModel(getId(), type, properties, exception);
}
}