?? sisters.jsp
字號(hào):
<%@ page import="javax.naming.InitialContext,
java.io.Reader,
java.io.InputStreamReader,
java.util.List,
java.util.ArrayList,
sisters.Person,
java.io.FileInputStream,
org.drools.jsr94.rules.RuleServiceProviderImpl,
javax.naming.NameNotFoundException,
java.io.IOException,
javax.rules.admin.*,
javax.rules.*,
java.util.HashMap"%>
<html>
<head>
<link rel="stylesheet" href="../styles.css">
<title>Drools JSR-94 Compliant Rule Engine</title>
</head>
<body>
<a href="http://www.drools.org"><img src="http://images.werken.com/drools.gif" border="0"></a>
<h3>Example Sisters</h3>
<p>
<%
String SISTERS_RULES_URI = "http://drools.org/rules/example/sisters";
RuleServiceProvider ruleServiceProvider = null;
try {
InitialContext iniCtx = new InitialContext();
ruleServiceProvider = (RuleServiceProvider)iniCtx.lookup("java:/jsr94/drools");
}
catch (NameNotFoundException ex) {
System.err.println(ex);
ruleServiceProvider = new RuleServiceProviderImpl();
}
StatelessRuleSession ruleSession = null;
try
{
RuleAdministrator ruleAdministrator = ruleServiceProvider.getRuleAdministrator();
// Load the rules
RuleExecutionSetProvider ruleSetProvider = ruleAdministrator.getRuleExecutionSetProvider(null);
String ruleUri = Person.class.getResource("sisters.drl").toExternalForm();
RuleExecutionSet ruleSet = ruleSetProvider.createRuleExecutionSet(ruleUri, null);
// register the rule set
ruleAdministrator.registerRuleExecutionSet(SISTERS_RULES_URI, ruleSet, null);
HashMap appData = new HashMap();
appData.put("message", "This came from the appData HashMap");
// obtain the stateless rule session
RuleRuntime ruleRuntime = ruleServiceProvider.getRuleRuntime();
ruleSession = (StatelessRuleSession)ruleRuntime.createRuleSession(SISTERS_RULES_URI, appData, RuleRuntime.STATELESS_SESSION_TYPE);
List inObjects = new ArrayList();
Person person = new Person("bob");
inObjects.add(person);
person = new Person("rebecca");
person.addSister("jeannie");
inObjects.add(person);
person = new Person("jeannie");
person.addSister("rebecca");
inObjects.add(person);
// execute the rules
List outList = ruleSession.executeRules(inObjects);
out.println("<code>");
for (int i = 0; i < outList.size(); i++) {
Object obj = outList.get(i);
out.println("[" + obj.getClass().getName() + "] " + obj + "<br>");
}
out.println("</code>");
}
catch (Exception ex)
{
ex.printStackTrace();
throw ex;
}
finally
{
if (ruleSession != null)
{
ruleSession.release();
}
}
%>
</body>
</html>
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