org.jboss.threads.DependencyTaskBuilder 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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/*
* JBoss, Home of Professional Open Source.
* Copyright 2017 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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.jboss.threads;
import java.util.Collection;
import java.util.LinkedHashSet;
import java.util.Arrays;
import java.util.concurrent.Executor;
import org.wildfly.common.Assert;
/**
* A builder for a dependency task.
*/
public final class DependencyTaskBuilder {
private final Collection dependencies = new LinkedHashSet();
private final Executor executor;
private final Runnable task;
DependencyTaskBuilder(final Executor executor, final Runnable task) {
this.executor = executor;
this.task = task;
}
/**
* Add a dependency.
*
* @param dependency the dependency
* @return this builder
*/
public DependencyTaskBuilder add(Dependency dependency) {
Assert.checkNotNullParam("dependency", dependency);
dependencies.add(dependency);
return this;
}
/**
* Add many dependencies.
*
* @param dependencies the dependencies
* @return this builder
*/
public DependencyTaskBuilder add(Collection dependencies) {
this.dependencies.addAll(dependencies);
return this;
}
/**
* Add many dependencies.
*
* @param dependencies the dependencies
* @return this builder
*/
public DependencyTaskBuilder add(Dependency... dependencies) {
this.dependencies.addAll(Arrays.asList(dependencies));
return this;
}
/**
* Create, and possibly execute, a dependent task from this builder.
*
* @return the new dependent task
*/
public Dependency create() {
final Collection dependencies = this.dependencies;
final Dependency dependentTask = new Dependency(executor, task, dependencies.size() + 1);
for (Dependency dependency : dependencies) {
dependency.addDependent(dependentTask);
}
dependentTask.dependencyFinished();
return dependentTask;
}
}