api/src/main/java/org/apache/cloudstack/context/LogContextListener.java

// 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.cloudstack.context;

import javax.annotation.PostConstruct;
import javax.inject.Inject;

import org.apache.cloudstack.managed.context.ManagedContextListener;

import com.cloud.utils.db.EntityManager;

public class LogContextListener implements ManagedContextListener<Object> {

    @Inject
    EntityManager entityMgr;

    @Override
    public Object onEnterContext(boolean reentry) {
        if (!reentry && LogContext.current() == null) {
            LogContext.registerSystemLogContextOnceOnly();
        }
        return null;
    }

    @Override
    public void onLeaveContext(Object unused, boolean reentry) {
        if (!reentry) {
            LogContext.unregister();
        }
    }

    @PostConstruct
    public void init() {
        LogContext.init(entityMgr);
    }
}