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/*
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 * Copyright (c) 2006-2010 Oracle and/or its affiliates. All rights reserved.
 *
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 * 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://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/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 packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
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 * Modifications:
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package com.sun.enterprise.v3.admin.commands;

import com.sun.enterprise.util.i18n.StringManager;
import java.lang.management.ClassLoadingMXBean;
import java.lang.management.CompilationMXBean;
import java.lang.management.ManagementFactory;
import javax.management.MBeanServerConnection;

/**
 */
class ClassReporter {

    private final MBeanServerConnection mbsc;
    private final StringManager sm = StringManager.getManager(ClassReporter.class);
    public ClassReporter(final MBeanServerConnection mbsc) {
        this.mbsc = mbsc;
    }
    public String getClassReport() throws RuntimeException {
        try {
            final StringBuilderNewLineAppender sb = new StringBuilderNewLineAppender(new StringBuilder());
            final ClassLoadingMXBean clmb = ManagementFactory.newPlatformMXBeanProxy(mbsc, 
                    ManagementFactory.CLASS_LOADING_MXBEAN_NAME, ClassLoadingMXBean.class);
            sb.append(sm.getString("classloading.info"));
            sb.append(sm.getString("classes.loaded", clmb.getLoadedClassCount()));
            sb.append(sm.getString("classes.total", clmb.getTotalLoadedClassCount()));
            sb.append(sm.getString("classes.unloaded", clmb.getUnloadedClassCount()));
            
            final CompilationMXBean cmb = ManagementFactory.newPlatformMXBeanProxy(mbsc, 
                    ManagementFactory.COMPILATION_MXBEAN_NAME, CompilationMXBean.class);
            sb.append(sm.getString("complilation.info"));
            sb.append(sm.getString("compilation.monitor.status", cmb.isCompilationTimeMonitoringSupported()));
            sb.append(sm.getString("jit.compilar.name", cmb.getName()));
            sb.append(sm.getString("compilation.time", JVMInformationCollector.millis2HoursMinutesSeconds(cmb.getTotalCompilationTime())));
            return ( sb.toString() );
        } catch(final Exception e) {
            throw new RuntimeException(e);
        }
    }
}