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 *
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 *
 * 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://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.
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package org.glassfish.admin.monitor.cli;

import org.glassfish.api.admin.AdminCommand;
import org.glassfish.api.admin.AdminCommandContext;
import org.glassfish.api.ActionReport;
import org.glassfish.api.I18n;
import org.glassfish.api.Param;
import org.jvnet.hk2.annotations.Service;

import org.glassfish.hk2.api.PerLookup;
import org.glassfish.hk2.api.ServiceLocator;

import com.sun.enterprise.util.LocalStringManagerImpl;

import javax.inject.Inject;
import java.util.Iterator;

/**
 * Return the version and build number
 *
 * @author Prashanth Abbagani
 */
@Service(name="monitor")
@PerLookup
@I18n("monitor.command")
public class Monitor implements AdminCommand {

    @Param(optional=true)
    private String type;

    @Param(optional=true)
    private String filter;

    @Inject
    private ServiceLocator habitat;

    final private LocalStringManagerImpl localStrings = 
        new LocalStringManagerImpl(Monitor.class);


    public void execute(AdminCommandContext context) {
        ActionReport report = context.getActionReport();
        MonitorContract mContract = null;
        for (MonitorContract m : habitat.getAllServices(MonitorContract.class)) {
            if ((m.getName()).equals(type)) {
                mContract = m;
                break;
            }
        }
        if (mContract != null) {
            mContract.process(report, filter);
            return;
        }
        if (habitat.getAllServices(MonitorContract.class).size() != 0) {
            StringBuffer buf = new StringBuffer();
            Iterator contractsIterator = habitat.
                    getAllServices(MonitorContract.class).iterator();
            while (contractsIterator.hasNext()) {
                buf.append(contractsIterator.next().getName());
                if (contractsIterator.hasNext()) {
                    buf.append(", ");
                }
            }
            String validTypes = buf.toString();
            report.setMessage(localStrings.getLocalString("monitor.type.error",
                "No type exists in habitat for the given monitor type {0}. " +
                "Valid types are: {1}", type, validTypes));
        } else {
            report.setMessage(localStrings.getLocalString("monitor.type.invalid",
                 "No type exists in habitat for the given monitor type {0}", type));
        }

        report.setActionExitCode(ActionReport.ExitCode.FAILURE);
    }
}