/*
* 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.deltaspike.core.impl.resourceloader;
import org.apache.deltaspike.core.api.provider.BeanProvider;
import org.apache.deltaspike.core.api.resourceloader.InjectableResource;
import org.apache.deltaspike.core.api.resourceloader.InjectableResourceProvider;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.inject.Any;
import javax.enterprise.inject.Disposes;
import javax.enterprise.inject.Instance;
import javax.enterprise.inject.Produces;
import javax.enterprise.inject.spi.InjectionPoint;
import javax.inject.Inject;
import java.io.IOException;
import java.io.InputStream;
import java.lang.annotation.Annotation;
import java.util.List;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Handles the creation/loading of external resources.
*
*/
@ApplicationScoped
public class InjectableResourceProducer
{
private static final Logger logger = Logger.getLogger(InjectableResourceProducer.class.getName());
@Inject
@Any
private Instance<InjectableResourceProvider> resourceProviders;
@Produces
@InjectableResource(resourceProvider = InjectableResourceProvider.class,location = "")
public InputStream getInputStream(final InjectionPoint injectionPoint)
{
InjectableResource injectableResource = getAnnotation(injectionPoint);
InjectableResourceProvider provider =
BeanProvider.getContextualReference(injectableResource.resourceProvider());
final InputStream is = provider.readStream(injectableResource);
return is;
}
@Produces
@InjectableResource(resourceProvider = InjectableResourceProvider.class,location = "")
public List<InputStream> getInputStreams(final InjectionPoint injectionPoint)
{
InjectableResource injectableResource = getAnnotation(injectionPoint);
InjectableResourceProvider provider =
BeanProvider.getContextualReference(injectableResource.resourceProvider());
return provider.readStreams(injectableResource);
}
@Produces
@InjectableResource(resourceProvider = InjectableResourceProvider.class,location = "")
public Properties getProperties(final InjectionPoint injectionPoint) throws IOException
{
InjectableResource injectableResource = getAnnotation(injectionPoint);
InjectableResourceProvider provider =
BeanProvider.getContextualReference(injectableResource.resourceProvider());
final Properties properties = provider.readProperties(injectableResource);
return properties;
}
public void closeInputStream(@Disposes
@InjectableResource(resourceProvider = InjectableResourceProvider.class, location = "")
InputStream inputStream)
{
if (inputStream != null)
{
try
{
inputStream.close();
}
catch (IOException e)
{
if (logger.isLoggable(Level.FINE))
{
logger.log(Level.FINE,"Unable to close input stream ",e);
}
}
}
}
private InjectableResource getAnnotation(final InjectionPoint injectionPoint)
{
for (Annotation annotation : injectionPoint.getQualifiers())
{
if (annotation instanceof InjectableResource)
{
return (InjectableResource)annotation;
}
}
return null;
}
}