/* Licensed 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.activiti.crystalball.simulator.runtime;
import org.activiti.crystalball.simulator.impl.persistence.entity.SimulationInstanceEntity;
import org.activiti.engine.ActivitiException;
/**
* Contains a predefined set of states for process definitions and process instances
*
* @author Daniel Meyer
*/
public interface SuspensionState {
SuspensionState ACTIVE = new SuspensionStateImpl(1, "active");
SuspensionState SUSPENDED = new SuspensionStateImpl(2, "suspended");
SuspensionState FINISHED = new SuspensionStateImpl(3, "finished");
int getStateCode();
///////////////////////////////////////////////////// default implementation
static class SuspensionStateImpl implements SuspensionState {
public final int stateCode;
protected final String name;
public SuspensionStateImpl(int suspensionCode, String string) {
this.stateCode = suspensionCode;
this.name = string;
}
public int getStateCode() {
return stateCode;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + stateCode;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
SuspensionStateImpl other = (SuspensionStateImpl) obj;
if (stateCode != other.stateCode)
return false;
return true;
}
@Override
public String toString() {
return name;
}
}
/////////////////////////////////////////// helper class
public static class SuspensionStateUtil{
public static void setSuspensionState(SimulationInstanceEntity simulationInstanceEntity, SuspensionState state) {
if(simulationInstanceEntity.getSuspensionState() == 3) {
throw new ActivitiException("Cannot set suspension state '"+state+"' for "+simulationInstanceEntity+"': already finished.");
}
if(simulationInstanceEntity.getSuspensionState() == state.getStateCode()) {
throw new ActivitiException("Cannot set suspension state '"+state+"' for "+simulationInstanceEntity+"': already in state '"+state+"'.");
}
simulationInstanceEntity.setSuspensionState(state.getStateCode());
}
}
}