/*
 * NOTE: This copyright does *not* cover user programs that use HQ
 * program services by normal system calls through the application
 * program interfaces provided as part of the Hyperic Plug-in Development
 * Kit or the Hyperic Client Development Kit - this is merely considered
 * normal use of the program, and does *not* fall under the heading of
 * "derived work".
 *
 * Copyright (C) [2004-2008], Hyperic, Inc.
 * This file is part of HQ.
 *
 * HQ is free software; you can redistribute it and/or modify
 * it under the terms version 2 of the GNU General Public License as
 * published by the Free Software Foundation. This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA.
 */

package org.hyperic.hq.galerts.server.session;

import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;

import org.hyperic.hibernate.PersistedObject;
import org.hyperic.hq.appdef.shared.AppdefEntityConstants;
import org.hyperic.hq.appdef.shared.AppdefEntityID;
import org.hyperic.hq.appdef.shared.AppdefUtil;
import org.hyperic.hq.authz.server.session.Resource;
import org.hyperic.hq.authz.server.session.ResourceGroup;
import org.hyperic.hq.common.server.session.Crispo;
import org.hyperic.hq.escalation.server.session.Escalation;
import org.hyperic.hq.escalation.server.session.EscalationAlertType;
import org.hyperic.hq.escalation.server.session.PerformsEscalations;
import org.hyperic.hq.events.AlertDefinitionInterface;
import org.hyperic.hq.events.AlertSeverity;

public class GalertDef
    extends PersistedObject
    implements AlertDefinitionInterface, PerformsEscalations {
    private String _name;
    private String _desc;
    private AlertSeverity _severity;
    private boolean _enabled;
    private ResourceGroup _group;
    private Escalation _escalation;
    private Set _strategies = new HashSet();
    private long _ctime;
    private long _mtime;
    private boolean _deleted;
    private Long _lastFired;

    protected GalertDef() {
    }

    GalertDef(String name, String desc, AlertSeverity severity, boolean enabled,
              ResourceGroup group) {
        _name = name;
        _desc = desc;
        _severity = severity;
        _enabled = enabled;
        _group = group;
        _escalation = null;
        _ctime = System.currentTimeMillis();
        _mtime = _ctime;
        _deleted = false;
        _lastFired = null;
    }

    ExecutionStrategyInfo addPartition(GalertDefPartition partition,
                                       ExecutionStrategyTypeInfo stratType, Crispo stratConfig) {
        ExecutionStrategyInfo strat;

        if (findStrategyByPartition(partition) != null) {
            throw new IllegalStateException("Partition[" + partition + "] " +
                                            "already created");
        }

        strat = stratType.createStrategyInfo(this, stratConfig, partition);
        getStrategySet().add(strat);
        return strat;
    }

    private ExecutionStrategyInfo findStrategyByPartition(GalertDefPartition p) {
        for (Iterator i = getStrategies().iterator(); i.hasNext();) {
            ExecutionStrategyInfo strat = (ExecutionStrategyInfo) i.next();

            if (strat.getPartition().equals(p))
                return strat;
        }
        return null;
    }

    public String getName() {
        return _name;
    }

    protected void setName(String name) {
        _name = name;
    }

    public String getDescription() {
        return _desc;
    }

    protected void setDescription(String desc) {
        _desc = desc;
    }

    public boolean isEnabled() {
        return _enabled;
    }

    protected void setEnabled(boolean enabled) {
        _enabled = enabled;
    }

    protected int getSeverityEnum() {
        return _severity.getCode();
    }

    protected void setSeverityEnum(int code) {
        _severity = AlertSeverity.findByCode(code);
    }

    public AlertSeverity getSeverity() {
        return _severity;
    }

    void setSeverity(AlertSeverity severity) {
        setSeverityEnum(severity.getCode());
    }

    public ResourceGroup getGroup() {
        return _group;
    }

    protected void setGroup(ResourceGroup group) {
        _group = group;
    }

    public Escalation getEscalation() {
        return _escalation;
    }

    protected void setEscalation(Escalation escalation) {
        _escalation = escalation;
    }

    protected Set getStrategySet() {
        return _strategies;
    }

    protected void setStrategySet(Set strategies) {
        _strategies = strategies;
    }

    public Set<ExecutionStrategyInfo> getStrategies() {
        return Collections.unmodifiableSet(_strategies);
    }

    public ExecutionStrategyInfo getStrategy(GalertDefPartition partition) {
        for (Iterator i = getStrategies().iterator(); i.hasNext();) {
            ExecutionStrategyInfo s = (ExecutionStrategyInfo) i.next();

            if (s.getPartition().equals(partition))
                return s;
        }
        return null;
    }

    public AppdefEntityID getAppdefID() {
        return AppdefUtil.newAppdefEntityId(getResource());
    }

    public int getAppdefId() {
        return getGroup().getId().intValue();
    }

    public int getAppdefType() {
        return AppdefEntityConstants.APPDEF_TYPE_GROUP;
    }

    public int getPriority() {
        return getSeverity().getCode();
    }

    public boolean isNotifyFiltered() {
        return false;
    }

    public long getCtime() {
        return _ctime;
    }

    protected void setCtime(long ctime) {
        _ctime = ctime;
    }

    public long getMtime() {
        return _mtime;
    }

    protected void setMtime(long mtime) {
        _mtime = mtime;
    }

    protected void setDeleted(boolean deleted) {
        _deleted = deleted;
    }

    public boolean isDeleted() {
        return _deleted;
    }

    protected void setLastFired(Long l) {
        _lastFired = l;
    }

    public Long getLastFired() {
        return _lastFired;
    }

    public EscalationAlertType getAlertType() {
        return GalertEscalationAlertType.GALERT;
    }

    public AlertDefinitionInterface getDefinitionInfo() {
        return this;
    }

    public boolean performsEscalations() {
        return true;
    }

    public String toString() {
        return getName();
    }

    public Resource getResource() {
        return getGroup().getResource();
    }
}