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/**
* ============LICENSE_START=======================================================
* Gizmo
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property.
* Copyright © 2017 Amdocs
* All rights reserved.
* ================================================================================
* Licensed 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.
* ============LICENSE_END=========================================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*/
package org.onap.crud.service;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import java.util.concurrent.TimeUnit;
import org.onap.aai.cl.api.Logger;
import org.onap.aai.cl.eelf.LoggerFactory;
import org.onap.crud.logging.CrudServiceMsgs;
import org.onap.crud.service.CrudAsyncGraphDataService.CollectGraphResponse;
import org.onap.crud.util.CrudProperties;
import org.onap.crud.util.CrudServiceConstants;
/**
* Self expiring Cache to hold request transactionIds . Events are expired
* automatically after 2 seconds of request time out
*/
public class CrudAsyncGraphEventCache {
private static Logger logger = LoggerFactory.getInstance().getLogger(CrudAsyncGraphEventCache
.class.getName());
private static Integer interval;
static {
// Set the cache eviction timeout = request timeout + 2 sec for the
// buffer
interval = CrudAsyncGraphDataService.DEFAULT_REQUEST_TIMEOUT + 2000;
try {
interval = Integer
.parseInt(CrudProperties.get(CrudServiceConstants.CRD_ASYNC_REQUEST_TIMEOUT) + 2000);
} catch (Exception ex) {
logger.error(CrudServiceMsgs.ASYNC_DATA_CACHE_ERROR, "Unable to parse "
+ CrudServiceConstants.CRD_ASYNC_REQUEST_TIMEOUT + " error: "
+ ex.getMessage());
}
}
private final static Cache<String, CollectGraphResponse> cache = CacheBuilder.newBuilder()
.expireAfterWrite(interval, TimeUnit.MILLISECONDS).build();
public static void put(String uuid, CollectGraphResponse collector) {
cache.put(uuid, collector);
}
public static CollectGraphResponse get(String uuid) {
return cache.getIfPresent(uuid);
}
public static void invalidate(String uuid) {
cache.invalidate(uuid);
}
}
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