org.jgroups.util.CustomRejectionPolicy Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
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package 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 final 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.getDeclaredConstructor().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);
}
}