/**
* Copyright (C) 2012-2013 Selventa, Inc.
*
* This file is part of the OpenBEL Framework.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The OpenBEL Framework is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the OpenBEL Framework. If not, see <http://www.gnu.org/licenses/>.
*
* Additional Terms under LGPL v3:
*
* This license does not authorize you and you are prohibited from using the
* name, trademarks, service marks, logos or similar indicia of Selventa, Inc.,
* or, in the discretion of other licensors or authors of the program, the
* name, trademarks, service marks, logos or similar indicia of such authors or
* licensors, in any marketing or advertising materials relating to your
* distribution of the program or any covered product. This restriction does
* not waive or limit your obligation to keep intact all copyright notices set
* forth in the program as delivered to you.
*
* If you distribute the program in whole or in part, or any modified version
* of the program, and you assume contractual liability to the recipient with
* respect to the program or modified version, then you will indemnify the
* authors and licensors of the program for any liabilities that these
* contractual assumptions directly impose on those licensors and authors.
*/
package org.openbel.framework.core.annotation;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.openbel.framework.common.AnnotationDefinitionResolutionException;
import org.openbel.framework.common.model.AnnotationDefinition;
import org.openbel.framework.core.df.cache.CacheLookupService;
import org.openbel.framework.core.df.cache.CacheableResourceService;
import org.openbel.framework.core.df.external.CacheableAnnotationDefinitionService;
import org.openbel.framework.core.df.external.CacheableAnnotationDefinitionServiceImpl;
/**
* DefaultAnnotationDefinitionService implements a service to populate an
* {@link AnnotationDefinition} from an external resource location.
*
* @author Anthony Bargnesi {@code <abargnesi@selventa.com>}
*/
public class DefaultAnnotationDefinitionService implements
AnnotationDefinitionService {
private final CacheableAnnotationDefinitionService cacheableAnnotationDefinitionService;
/**
* Defines the map of parsed annotations. The entries are keyed by
* annotation resource location with {@link AnnotationDefinition} as the
* value.
*
* <p>
* This map in thread-safe as it uses {@link ConcurrentHashMap}.
* </p>
*/
private final Map<String, AnnotationDefinition> annotations =
new ConcurrentHashMap<String, AnnotationDefinition>();
public DefaultAnnotationDefinitionService(
CacheableResourceService resourceCache,
CacheLookupService cacheLookupService) {
this.cacheableAnnotationDefinitionService =
new CacheableAnnotationDefinitionServiceImpl(
resourceCache, cacheLookupService);
}
/**
* {@inheritDoc}
*/
@Override
public AnnotationDefinition resolveAnnotationDefinition(
String resourceLocation)
throws AnnotationDefinitionResolutionException {
synchronized (resourceLocation) {
// return if cached
if (annotations.containsKey(resourceLocation)) {
return annotations.get(resourceLocation);
}
// resolve and parse
AnnotationDefinition annotationDefinition =
cacheableAnnotationDefinitionService
.resolveAnnotationDefinition(resourceLocation);
// cache annotation definition and return
annotations.put(resourceLocation, annotationDefinition);
return annotationDefinition;
}
}
}