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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2019 Payara Foundation and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://github.com/payara/Payara/blob/master/LICENSE.txt
 * See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * The Payara Foundation designates this particular file as subject to the "Classpath"
 * exception as provided by the Payara Foundation in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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 * only the GPL Version 2, indicate your decision by adding "[Contributor]
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package org.glassfish.admin.amx.util;

import java.util.Map.Entry;

import javax.management.openmbean.CompositeData;
import javax.management.openmbean.CompositeType;

import org.glassfish.admin.amx.core.AMXProxy;

import fish.payara.monitoring.collect.MonitoringDataCollector;

/**
 * Utility to collect monitoring data from monitoring beans.
 *
 * @author Jan Bernitt
 */
public class MonitoringDataUtil {

    public static void collectBean(MonitoringDataCollector collector, AMXProxy bean) {
        for (Entry attrEntry : bean.attributesMap().entrySet()) {
            String metric = attrEntry.getKey();
            Object value = attrEntry.getValue();
            if (value instanceof CompositeData) {
                CompositeData data = (CompositeData) value;
                CompositeType type = data.getCompositeType();
                if ("CountStatistic".equals(type.getTypeName())) {
                    Long count = (Long) data.get("count");
                    String unit = (String) data.get("unit");
                    String name = (String) data.get("name");
                    name = Character.toLowerCase(name.charAt(0)) + name.substring(1);
                    metric = name.endsWith("Count") ? name
                            : name + Character.toUpperCase(unit.charAt(0)) + unit.substring(1);
                    collector.collect(metric, count);
                }
            } else if (value instanceof Number) {
                collector.collect(metric, (Number) value);
            } else if (value instanceof Boolean) {
                collector.collect(metric, (Boolean) value);
            }
        }
    }
}