org.drools.core.ClockType Maven / Gradle / Ivy
/*
* Copyright 2010 Red Hat, Inc. and/or its affiliates.
*
* 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.drools.core;
import org.drools.core.time.impl.JDKTimerService;
import org.drools.core.time.impl.PseudoClockScheduler;
import org.kie.api.time.SessionClock;
/**
* This enum represents all engine supported clocks
*/
public enum ClockType {
REALTIME_CLOCK("realtime") {
public JDKTimerService createInstance() {
return new JDKTimerService();
}
},
/**
* A Pseudo clock is a clock that is completely controlled by the
* client application. It is usually used during simulations or tests
*/
PSEUDO_CLOCK("pseudo") {
public PseudoClockScheduler createInstance() {
return new PseudoClockScheduler();
}
};
public abstract SessionClock createInstance();
private String string;
ClockType( String string ) {
this.string = string;
}
public String toExternalForm() {
return this.string;
}
public String toString() {
return this.string;
}
public String getId() {
return this.string;
}
public static ClockType resolveClockType( String id ) {
if( PSEUDO_CLOCK.getId().equalsIgnoreCase( id ) ) {
return PSEUDO_CLOCK;
} else if( REALTIME_CLOCK.getId().equalsIgnoreCase( id ) ) {
return REALTIME_CLOCK;
}
throw new IllegalArgumentException( "Illegal enum value '" + id + "' for ClockType" );
}
}