/*
 * Copyright 2012-2014 Red Hat, Inc.
 *
 * This file is part of Thermostat.
 *
 * Thermostat is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 2, or (at your
 * option) any later version.
 *
 * Thermostat is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Thermostat; see the file COPYING.  If not see
 * <http://www.gnu.org/licenses/>.
 *
 * Linking this code with other modules is making a combined work
 * based on this code.  Thus, the terms and conditions of the GNU
 * General Public License cover the whole combination.
 *
 * As a special exception, the copyright holders of this code give
 * you permission to link this code with independent modules to
 * produce an executable, regardless of the license terms of these
 * independent modules, and to copy and distribute the resulting
 * executable under terms of your choice, provided that you also
 * meet, for each linked independent module, the terms and conditions
 * of the license of that module.  An independent module is a module
 * which is not derived from or based on this code.  If you modify
 * this code, you may extend this exception to your version of the
 * library, but you are not obligated to do so.  If you do not wish
 * to do so, delete this exception statement from your version.
 */

package com.redhat.thermostat.thread.harvester;

import com.redhat.thermostat.storage.core.WriterID;
import com.redhat.thermostat.thread.dao.ThreadDao;
import com.redhat.thermostat.thread.model.SessionID;
import com.redhat.thermostat.thread.model.ThreadState;
import java.lang.management.ThreadInfo;

public class ThreadStateHelper {

    private ThreadDao threadDao;
    private final WriterID writerId;
    private final String vmId;

    public ThreadStateHelper(ThreadDao threadDao,
                             WriterID writerId, String vmId)
    {
        this.threadDao = threadDao;
        this.writerId = writerId;
        this.vmId = vmId;
    }

    public ThreadState createThreadState(ThreadInfo beanInfo,
                                         SessionID sessionID,
                                         long timestamp)
    {
        ThreadState state = new ThreadState(writerId.getWriterID());

        // generic information
        state.setTimeStamp(timestamp);
        state.setSession(sessionID.get());
        state.setVmId(vmId);

        // ids
        state.setName(beanInfo.getThreadName());
        state.setId(beanInfo.getThreadId());

        // execution information
        state.setState(beanInfo.getThreadState().name());
        state.setSuspended(beanInfo.isSuspended());
        state.setInNative(beanInfo.isInNative());

        // synchronization statistics
        state.setBlockedCount(beanInfo.getBlockedCount());
        state.setBlockedTime(beanInfo.getBlockedTime());
        state.setWaitedCount(beanInfo.getWaitedCount());
        state.setWaitedTime(beanInfo.getWaitedTime());

        // TODO: lock information

        return state;
    }

    public void saveThreadState(ThreadState thread) {
        threadDao.addThreadState(thread);
    }
}
