@Test
public void testRuleCreation() {
this.shell.eval("(import org.drools.Person)");
this.shell.eval("(defrule yyy => (printout t yy \" \" (eq 1 1) ) ) )");
Package pkg = shell.getStatefulSession().getRuleBase().getPackage("MAIN");
Rule rule = pkg.getRule("yyy");
assertEquals("yyy", rule.getName());
this.shell.eval(
"(defrule xxx (Person (name ?name&bob) (age 30) ) (Person (name ?name) (age 35)) => (printout t xx \" \" (eq 1 1) ) )");
rule = pkg.getRule("xxx");
assertEquals("xxx", rule.getName());
assertEquals(2, pkg.getRules().length);
assertTrue(pkg.getImports().containsKey("org.drools.Person"));
WorkingMemory wm = shell.getStatefulSession();
wm.insert(new Person("bob", "cheddar", 30));
wm.insert(new Person("bob", "stilton", 35));
wm.fireAllRules();
assertEquals("yy truexx true", new String(this.baos.toByteArray()));
}
public static void main(String[] args) throws Exception {
ClipsShell shell = new ClipsShell();
ByteArrayOutputStream out = new ByteArrayOutputStream();
shell.addRouter("t", new PrintStream(out));
StringBuffer buf = new StringBuffer();
System.out.print("Drools>");
StringBuffer sessionLog = new StringBuffer();
while (true) {
byte name[] = new byte[256];
System.in.read(name);
String cmd = (new String(name)).trim();
if (cmd.equals("(exit)") || cmd.equals("(quit)")) {
sessionLog.append(cmd);
break;
}
buf.append(cmd);
if (isBalancedBrackets(buf)) {
String exp = buf.toString();
if (exp.startsWith("(save ")) {
String file = getFileName(exp);
System.out.println("Saving transcript to [" + file + "]");
writeFile(file, sessionLog);
sessionLog = new StringBuffer();
System.out.print("Drools>");
} else {
sessionLog.append(cmd + "\n");
if (exp.startsWith("(load ")) {
String file = getFileName(exp);
System.out.println("Loading transcript from [" + file + "]");
exp = loadFile(file);
}
shell.eval(exp);
String output = new String(out.toByteArray());
if (output != null && output.trim().length() > 0) {
System.out.println(output);
}
out.reset();
System.out.print("Drools>");
buf = new StringBuffer();
}
}
}
System.out.println("Goodbye, and good luck !");
}
@Before
public void setUp() {
FunctionHandlers handlers = FunctionHandlers.getInstance();
handlers.registerFunction(new PlusFunction());
handlers.registerFunction(new MinusFunction());
handlers.registerFunction(new MultiplyFunction());
handlers.registerFunction(new ModifyFunction());
handlers.registerFunction(new CreateListFunction());
handlers.registerFunction(new PrintoutFunction());
handlers.registerFunction(new PrognFunction());
handlers.registerFunction(new IfFunction());
handlers.registerFunction(new LessThanFunction());
handlers.registerFunction(new LessThanOrEqFunction());
handlers.registerFunction(new MoreThanFunction());
handlers.registerFunction(new MoreThanOrEqFunction());
handlers.registerFunction(new EqFunction());
handlers.registerFunction(new SwitchFunction());
// handlers.registerFunction( new DeffunctionFunction() );
handlers.registerFunction(new ReturnFunction());
handlers.registerFunction(new RunFunction());
handlers.registerFunction(new BindFunction());
handlers.registerFunction(new NewFunction());
handlers.registerFunction(new SetFunction());
handlers.registerFunction(new GetFunction());
handlers.registerFunction(new CallFunction());
handlers.registerFunction(new AssertFunction());
this.shell = new ClipsShell();
this.baos = new ByteArrayOutputStream();
shell.addRouter("t", new PrintStream(baos));
}
@Before
public void setUp() {
this.shell = new ClipsShell();
this.baos = new ByteArrayOutputStream();
PrintStream p = new PrintStream(baos);
shell.addRouter("t", p);
}
@Test
@Ignore
public void testTemplateCreationWithJava() throws Exception {
this.shell.eval("(deftemplate Person (slot name (type String) ) (slot age (type int) ) )");
this.shell.eval("(defrule yyy => (printout t yy \" \" (eq 1 1) ) ) )");
Package pkg = shell.getStatefulSession().getRuleBase().getPackage("MAIN");
Rule rule = pkg.getRule("yyy");
assertEquals("yyy", rule.getName());
this.shell.eval(
"(defrule xxx (Person (name ?name&bob) (age 30) ) (Person (name ?name) (age 35)) => (printout t xx \" \" (eq 1 1) ) )");
rule = pkg.getRule("xxx");
assertEquals("xxx", rule.getName());
assertEquals(2, pkg.getRules().length);
WorkingMemory wm = shell.getStatefulSession();
Class personClass =
((InternalRuleBase) this.shell.getStatefulSession().getRuleBase())
.getRootClassLoader()
.loadClass("MAIN.Person");
Method nameMethod = personClass.getMethod("setName", new Class[] {String.class});
Method ageMethod = personClass.getMethod("setAge", new Class[] {int.class});
Object bob1 = personClass.newInstance();
nameMethod.invoke(bob1, "bob");
ageMethod.invoke(bob1, 30);
Object bob2 = personClass.newInstance();
nameMethod.invoke(bob2, "bob");
ageMethod.invoke(bob2, 35);
// Constructor constructor = personClass.getConstructor( new Class[] {
// String.class,String.class, int.class} );
wm.insert(bob1);
wm.insert(bob2);
wm.fireAllRules();
assertEquals("yy truexx true", new String(this.baos.toByteArray()));
}
