Example #1
0
  @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()));
  }
Example #2
0
  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));
  }
Example #4
0
  @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()));
  }