/*
* RHQ Management Platform
* Copyright (C) 2005-2008 Red Hat, Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2, as
* published by the Free Software Foundation, and/or the GNU Lesser
* General Public License, version 2.1, also 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 and the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License
* and the GNU Lesser General Public License along with this program;
* if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.rhq.core.domain.alert;
import java.io.Serializable;
import java.util.Date;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.EnumType;
import javax.persistence.Enumerated;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;
@Entity
@NamedQueries( { @NamedQuery(name = AlertDampeningEvent.QUERY_FIND_LATEST_BY_ALERT_DEFINITION_ID, query = "" //
+ "SELECT ade " //
+ " FROM AlertDampeningEvent ade " //
+ " WHERE ade.id = " //
+ " ( SELECT max(iade.id) FROM AlertDampeningEvent iade " //
+ " WHERE iade.alertDefinition.id = :alertDefinitionId )"), //
// do NOT change the ORDER BY clause of this query, the SLSB layer above it depends on the oldest event being first
@NamedQuery(name = AlertDampeningEvent.QUERY_FIND_BY_TIME_AND_TYPES, query = "" //
+ "SELECT ade " //
+ " FROM AlertDampeningEvent ade " //
+ " WHERE ade.alertDefinition.id = :alertDefinitionId " //
+ " AND ade.eventType IN (:eventTypes) " //
+ " AND ade.eventTime > :oldestEventTime " //
+ " ORDER BY ade.eventTime ASC"), //
@NamedQuery(name = AlertDampeningEvent.QUERY_FIND_BY_ALERT_DEFINITION_ID, query = "" //
+ "SELECT ade " //
+ " FROM AlertDampeningEvent ade " //
+ " WHERE ade.alertDefinition.id = :alertDefinitionId " //
+ " ORDER BY ade.eventTime DESC "), //
@NamedQuery(name = AlertDampeningEvent.QUERY_DELETE_BY_RESOURCES, query = "" //
+ "DELETE AlertDampeningEvent ade " //
+ " WHERE ade.alertDefinition IN " //
+ " ( SELECT ad FROM AlertDefinition ad " //
+ " WHERE ad.resource.id IN ( :resourceIds ) )"), //
@NamedQuery(name = AlertDampeningEvent.QUERY_DELETE_BY_TIMESTAMP, //
query = "DELETE AlertDampeningEvent ade " //
+ " WHERE ade.eventTime < :oldest " //
+ " AND ade.alertDefinition.id = :alertDefinitionId "), //
@NamedQuery(name = AlertDampeningEvent.QUERY_DELETE_BY_ALERT_DEFINITION_ID, query = "" //
+ "DELETE AlertDampeningEvent ade " //
+ " WHERE ade.alertDefinition.id = :alertDefinitionId") })
@SequenceGenerator(allocationSize = org.rhq.core.domain.util.Constants.ALLOCATION_SIZE, name = "RHQ_ALERT_DAMPEN_EVENT_ID_SEQ", sequenceName = "RHQ_ALERT_DAMPEN_EVENT_ID_SEQ")
@Table(name = "RHQ_ALERT_DAMPEN_EVENT")
public class AlertDampeningEvent implements Serializable {
public static final String QUERY_FIND_LATEST_BY_ALERT_DEFINITION_ID = "AlertDampeningEvent.findLatestByAlertDefinitionId";
public static final String QUERY_FIND_BY_TIME_AND_TYPES = "AlertDampeningEvent.findByTimeAndTypes";
public static final String QUERY_FIND_BY_ALERT_DEFINITION_ID = "AlertDampeningEvent.findByAlertDefinitionId";
public static final String QUERY_DELETE_BY_RESOURCES = "AlertDampeningEvent.deleteByResources";
public static final String QUERY_DELETE_BY_TIMESTAMP = "AlertDampeningEvent.deleteByTimestamp";
public static final String QUERY_DELETE_BY_ALERT_DEFINITION_ID = "AlertDampeningEvent.deleteByAlertDefinitionId";
public enum Type {
POSITIVE, POSITIVE_AGAIN, NEGATIVE, UNCHANGED;
}
private static final long serialVersionUID = 1L;
@Column(name = "ID", nullable = false)
@GeneratedValue(strategy = GenerationType.AUTO, generator = "RHQ_ALERT_DAMPEN_EVENT_ID_SEQ")
@Id
private int id;
// bidrectional so that AlertDampeningEvent queries are simpler
@JoinColumn(name = "ALERT_DEFINITION_ID", referencedColumnName = "ID")
@ManyToOne
private AlertDefinition alertDefinition;
@Column(name = "EVENT_TYPE")
@Enumerated(EnumType.ORDINAL)
private Type eventType;
@Column(name = "EVENT_TIMESTAMP")
private long eventTime;
protected AlertDampeningEvent() {
} // JPA
public AlertDampeningEvent(AlertDefinition alertDefinition, Type type) {
this.eventType = type;
this.alertDefinition = alertDefinition;
this.eventTime = System.currentTimeMillis();
}
public int getId() {
return id;
}
public AlertDefinition getAlertDefinition() {
return alertDefinition;
}
public void setAlertDefinition(AlertDefinition alertDefinition) {
this.alertDefinition = alertDefinition;
}
public Type getEventType() {
return eventType;
}
public Long getEventTime() {
return eventTime;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof AlertDampeningEvent)) {
return false;
}
AlertDampeningEvent other = (AlertDampeningEvent) o;
if (eventTime != other.eventTime) {
return false;
}
if (eventType == null) {
if (other.eventType != null) {
return false;
}
} else if (!eventType.equals(other.eventType)) {
return false;
}
return true;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + (int) (eventTime ^ (eventTime >>> 32));
result = prime * result + ((eventType == null) ? 0 : eventType.hashCode());
return result;
}
@Override
public String toString() {
return "org.rhq.core.domain.alert.AlertDampeningEvent" + "[ " + "id=" + id + ", " + "eventType=" + eventType
+ ", " + "eventTime=" + new Date(eventTime) + " ]";
}
}