/*
* 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.measurement;
import java.io.Serializable;
import javax.persistence.EmbeddedId;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.Inheritance;
import javax.persistence.InheritanceType;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Transient;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;
/**
* Represents data that was collected either due to a schedule or an on-demand, live collection.
*/
@Entity
@Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)
@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement
public abstract class MeasurementData implements Serializable {
private static final long serialVersionUID = 1L;
@EmbeddedId
MeasurementDataPK id;
@JoinColumn(name = "SCHEDULE_ID", insertable = false, updatable = false, nullable = false)
@ManyToOne(fetch = FetchType.LAZY, optional = false)
MeasurementSchedule schedule;
@Transient
private String name;
/**
* Use this constructor if the data was collected on-demand and not part of a scheduled collection.
*/
protected MeasurementData() {
this(new MeasurementDataPK(System.currentTimeMillis(), 0));
}
protected MeasurementData(MeasurementDataPK pk) {
if (pk == null) {
throw new NullPointerException("pk==null");
}
id = pk;
}
protected MeasurementData(long timestamp, MeasurementScheduleRequest request) {
this(new MeasurementDataPK(timestamp, request.getScheduleId()));
this.setName(request.getName());
}
protected MeasurementData(MeasurementScheduleRequest request) {
this(new MeasurementDataPK(System.currentTimeMillis(), request.getScheduleId()));
this.setName(request.getName());
}
protected MeasurementData(long timestamp, int scheduleId) {
this(new MeasurementDataPK(timestamp,scheduleId));
}
public int getScheduleId() {
return id.scheduleId;
}
public long getTimestamp() {
return id.timestamp;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public MeasurementSchedule getSchedule() {
return schedule;
}
public abstract Object getValue();
@Override
public String toString() {
return "MeasurementData[name=" + this.name + ", scheduleId=" + this.id.scheduleId + ", timestamp="
+ this.id.timestamp + "]";
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if ((o == null) || (!(o instanceof MeasurementData))) {
return false;
}
MeasurementData that = (MeasurementData) o;
if (!id.equals(that.id)) {
return false;
}
if ((name != null) ? (!name.equals(that.name)) : (that.name != null)) {
return false;
}
return true;
}
@Override
public int hashCode() {
int result;
result = id.hashCode();
result = (31 * result) + ((name != null) ? name.hashCode() : 0);
return result;
}
}