src/main/java/org/apache/sling/engine/impl/filter/FilterProcessorMBeanImpl.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.sling.engine.impl.filter;

import javax.management.NotCompliantMBeanException;
import javax.management.StandardMBean;

import org.apache.sling.engine.jmx.FilterProcessorMBean;

/**
 * This is the implementation of the management interface for the
 * FilterProcessorMBean.
 */
public class FilterProcessorMBeanImpl extends StandardMBean implements FilterProcessorMBean {

    // number of filter invocations
    private volatile long n;

    private volatile double meanDuration;

    public FilterProcessorMBeanImpl() throws NotCompliantMBeanException {
        super(FilterProcessorMBean.class);
        resetStatistics();
    }

    void addFilterHandle(FilterHandle filterHandle) {
        this.n = filterHandle.getCalls();
        this.meanDuration = (double) filterHandle.getTimePerCall() / 1000;
    }

    @Override
    public long getInvocationsCount() {
        return this.n;
    }

    @Override
    public double getMeanFilterDurationMsec() {
        return this.meanDuration;
    }

    @Override
    public void resetStatistics() {
        this.n = 0;
        this.meanDuration = 0;
    }
}