package com.sample;
import java.io.InputStreamReader;
import java.io.Reader;
import org.drools.RuleBase;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.audit.WorkingMemoryFileLogger;
import org.drools.compiler.PackageBuilder;
import org.drools.process.instance.WorkItemHandler;
import org.drools.process.workitem.archive.ArchiveWorkItemHandler;
import org.drools.process.workitem.email.EmailWorkItemHandler;
import org.drools.process.workitem.exec.ExecWorkItemHandler;
import org.drools.process.workitem.finder.FinderWorkItemHandler;
import org.drools.process.workitem.transform.FileTransformer;
import org.drools.process.workitem.transform.TransformWorkItemHandler;
import org.drools.rule.Package;
import org.drools.runtime.process.WorkItem;
import org.drools.runtime.process.WorkItemManager;
/**
* This is a sample file to launch a ruleflow.
*/
public class RuleFlowTest {
public static final void main(String[] args) {
try {
RuleBase ruleBase = createKnowledgeBase();
StatefulSession session = ruleBase.newStatefulSession();
session.getWorkItemManager().registerWorkItemHandler("Finder", new FinderWorkItemHandler());
session.getWorkItemManager().registerWorkItemHandler("Archive", new ArchiveWorkItemHandler());
session.getWorkItemManager().registerWorkItemHandler("Exec", new ExecWorkItemHandler());
session.getWorkItemManager().registerWorkItemHandler("Log", new WorkItemHandler() {
public void executeWorkItem(WorkItem workItem, WorkItemManager manager) {
System.out.println("Log: " + workItem.getParameter("Message"));
manager.completeWorkItem(workItem.getId(), null);
}
public void abortWorkItem(WorkItem arg0, WorkItemManager arg1) {
}
});
EmailWorkItemHandler emailWorkItemHandler = new EmailWorkItemHandler();
emailWorkItemHandler.setConnection("mail-out.example.com", "25", null, null);
session.getWorkItemManager().registerWorkItemHandler("Email", emailWorkItemHandler);
TransformWorkItemHandler transformWorkItemHandler = new TransformWorkItemHandler();
transformWorkItemHandler.registerTransformer(FileTransformer.class);
session.getWorkItemManager().registerWorkItemHandler("Transform", transformWorkItemHandler);
WorkingMemoryFileLogger logger = new WorkingMemoryFileLogger(session);
session.startProcess("com.sample.ruleflow");
logger.writeToDisk();
} catch (Throwable t) {
t.printStackTrace();
}
}
private static RuleBase createKnowledgeBase() throws Exception {
PackageBuilder builder = new PackageBuilder();
Reader source = new InputStreamReader(
RuleFlowTest.class.getResourceAsStream("/FileFinder.rf"));
builder.addProcessFromXml(source);
Package pkg = builder.getPackage();
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage(pkg);
return ruleBase;
}
}