/*
 * Copyright 2010 JBoss Inc
 *
 * 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 org.drools.audit;

import org.drools.WorkingMemory;
import org.drools.audit.event.LogEvent;
import org.drools.event.KnowledgeRuntimeEventManager;

public class ThreadedWorkingMemoryFileLogger extends WorkingMemoryFileLogger {

    private int    interval = 1000;
    private Writer writer;

    public ThreadedWorkingMemoryFileLogger(WorkingMemory workingMemory) {
        super( workingMemory );
        setSplit( false );
    }

    public ThreadedWorkingMemoryFileLogger(KnowledgeRuntimeEventManager session) {
        super( session );
        setSplit( false );
    }

    public void start(int interval) {
        this.interval = interval;
        writer = new Writer();
        new Thread( writer ).start();
    }

    public void stop() {
        writer.interrupt();
        super.stop();
    }

    public synchronized void logEventCreated(final LogEvent logEvent) {
        super.logEventCreated( logEvent );
    }

    public synchronized void writeToDisk() {
        super.writeToDisk();
    }

    private class Writer
        implements
        Runnable {
        private boolean interrupt = false;

        public void run() {
            while ( !interrupt ) {
                try {
                    Thread.sleep( interval );
                } catch ( Throwable t ) {
                    // do nothing
                }
                writeToDisk();
            }
        }

        public void interrupt() {
            this.interrupt = true;
        }
    }

}
