/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.ambari.server.events;
import org.apache.ambari.server.orm.entities.AlertCurrentEntity;
import org.apache.ambari.server.orm.entities.AlertHistoryEntity;
import org.apache.ambari.server.state.Alert;
import org.apache.ambari.server.state.AlertFirmness;
import org.apache.ambari.server.state.AlertState;
/**
* The {@link AlertStateChangeEvent} is fired when an {@link Alert} instance has
* its {@link AlertState} changed or has it's {@link AlertFirmness} changed.
* <p/>
* An {@link AlertState} change coupled with a {@link AlertFirmness#HARD}
* firmness is what would eventually trigger notifications to be created.
*/
public class AlertStateChangeEvent extends AlertEvent {
/**
* The prior alert state.
*/
private final AlertState m_fromState;
/**
* The prior alert firmness.
*/
private final AlertFirmness m_fromFirmness;
/**
* The current alert, including state and history.
*/
private final AlertCurrentEntity m_currentAlert;
/**
* The historical record for this alert state change event.
*/
private final AlertHistoryEntity m_history;
/**
* Constructor.
*
* @param clusterId
* @param alert
* @param currentAlert
* @param fromState
* @param fromFirmness
*/
public AlertStateChangeEvent(long clusterId, Alert alert,
AlertCurrentEntity currentAlert, AlertState fromState, AlertFirmness fromFirmness) {
super(clusterId, alert);
m_currentAlert = currentAlert;
m_history = currentAlert.getAlertHistory();
m_fromState = fromState;
m_fromFirmness = fromFirmness;
}
/**
* Gets the current alert.
*
* @return the current alert.
*/
public AlertCurrentEntity getCurrentAlert() {
return m_currentAlert;
}
/**
* Gets the newly created item in alert history.
*
* @return the newly created historical item.
*/
public AlertHistoryEntity getNewHistoricalEntry() {
return m_history;
}
/**
* Gets the prior state of the alert.
*
* @return the prior state of the alert.
*/
public AlertState getFromState() {
return m_fromState;
}
/**
* Gets the prior firmness of the alert.
*
* @return the prior firmness of the alert.
*/
public AlertFirmness getFromFirmness() {
return m_fromFirmness;
}
/**
* {@inheritDoc}
*/
@Override
public String toString() {
StringBuilder buffer = new StringBuilder("AlertStateChangeEvent{");
buffer.append("cluserId=").append(m_clusterId);
buffer.append(", fromState=").append(m_fromState);
buffer.append(", firmness=").append(m_currentAlert.getFirmness());
buffer.append(", alert=").append(m_alert);
buffer.append("}");
return buffer.toString();
}
}