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ClusterCacheListener.java
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ClusterCacheListener.java
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/*
* Copyright (c) 2010-2018 Evolveum
*
* 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.
*/
package com.evolveum.midpoint.model.impl;
import com.evolveum.midpoint.model.impl.security.NodeAuthenticationToken;
import com.evolveum.midpoint.repo.api.CacheDispatcher;
import com.evolveum.midpoint.repo.api.CacheListener;
import com.evolveum.midpoint.schema.constants.ObjectTypes;
import com.evolveum.midpoint.schema.result.OperationResult;
import com.evolveum.midpoint.task.api.RemoteExecutionHelper;
import com.evolveum.midpoint.task.api.Task;
import com.evolveum.midpoint.task.api.TaskManager;
import com.evolveum.midpoint.util.logging.Trace;
import com.evolveum.midpoint.util.logging.TraceManager;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ObjectType;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;
import javax.ws.rs.core.Response;
@Component
public class ClusterCacheListener implements CacheListener {
private static final Trace LOGGER = TraceManager.getTrace(ClusterCacheListener.class);
@Autowired private TaskManager taskManager;
@Autowired private CacheDispatcher cacheDispatcher;
@Autowired private RemoteExecutionHelper remoteExecutionHelper;
@PostConstruct
public void addListener() {
cacheDispatcher.registerCacheListener(this);
}
@Override
public <O extends ObjectType> void invalidateCache(Class<O> type, String oid) {
if (!isSupportedToBeCleared(type, oid)) {
LOGGER.trace("Type {} (oid={}) not yet supported for cache clearance. Skipping.", type, oid);
return;
}
Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
if (authentication instanceof NodeAuthenticationToken) {
LOGGER.trace("Skipping cluster-wide cache invalidation as this is already a remotely-invoked invalidateCache() call");
return;
}
Task task = taskManager.createTaskInstance("invalidateCache");
OperationResult result = task.getResult();
remoteExecutionHelper.execute((client, result1) -> {
client.path("/event/" + ObjectTypes.getRestTypeFromClass(type));
Response response = client.post(null);
LOGGER.info("Cluster-wide cache clearance finished with status {}, {}", response.getStatusInfo().getStatusCode(),
response.getStatusInfo().getReasonPhrase());
response.close();
}, "cache invalidation", result);
}
}