org.apache.activemq.artemis.shaded.org.jgroups.util.CustomRejectionPolicy Maven / Gradle / Ivy
package org.apache.activemq.artemis.shaded.org.jgroups.util;
import java.util.concurrent.RejectedExecutionHandler;
import java.util.concurrent.ThreadPoolExecutor;
/**
* // TODO: Document this
*
* @author Radim Vansa <[email protected]>
* @since 1/29/13
*/
public class CustomRejectionPolicy implements RejectedExecutionHandler {
public final static String NAME = "custom";
private RejectedExecutionHandler custom;
public CustomRejectionPolicy(String rejection_policy) {
if (!rejection_policy.toLowerCase().startsWith("custom=")) {
throw new IllegalStateException(rejection_policy);
}
String className = rejection_policy.substring(7);
try {
Class policyClass = Util.loadClass(className, Util.class);
Object policy = policyClass.newInstance();
if (!(policy instanceof RejectedExecutionHandler)) {
throw new IllegalArgumentException(className + " does not implement RejectedExecutionHandler");
} else {
custom = (RejectedExecutionHandler) policy;
}
} catch (Throwable e) {
throw new RuntimeException("Cannot instantiate rejection policy '" + rejection_policy + "'", e);
}
}
@Override
public void rejectedExecution(Runnable r, ThreadPoolExecutor executor) {
custom.rejectedExecution(r, executor);
}
}