FieldAlterationTest.java

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package ngmf;

import static org.junit.Assert.assertEquals;

import java.util.EventObject;

import oms3.Compound;
import oms3.Notification.DataflowEvent;
import oms3.Notification.Listener;
import oms3.Notification.Type;
import oms3.annotations.Execute;
import oms3.annotations.In;
import oms3.annotations.Out;

import org.junit.BeforeClass;
import org.junit.Test;

/**
 * 
 * @author Olaf David
 */
public class FieldAlterationTest {

	public static class Cmd1 {

		@In
		public String in1;
		@Out
		public double out1;

		@Execute
		public void execute() {
			out1 = 1.2;
		}
	}

	public static class Cmd2 {

		@In
		public double in2;
		@Out
		public String out2;

		@Execute
		public void whatever() {
			out2 = "CMD2(" + in2 + ")";
		}
	}

	public static class C extends Compound {

		@In
		public String in;
		@Out
		public String out;

		// creating the operations
		Cmd1 op1 = new Cmd1();
		Cmd2 op2 = new Cmd2();

		public C() {
			// connects the two internals
			out2in(op1, "out1", op2, "in2");

			// maps the compound fields
			in2in("in", op1, "in1");
			out2out("out", op2, "out2");
		}
	}

	@BeforeClass
	public static void setUpBeforeClass() {
		Compound.reload();
	}

	@Test(timeout = 700)
	public void alterOutput() throws Exception {

		C c = new C();
		c.addListener(new Listener() {

			@Override
			public void notice(Type T, EventObject E) {
				if (T == Type.OUT) {
					DataflowEvent ce = (DataflowEvent) E;
					if (ce.getValue() instanceof Double) {
						assertEquals(1.2, ce.getValue());
						ce.setValue(new Double(3.2));
					}
					// System.out.println(" ---- " + ce.getValue() + " " +
					// ce.getValue().getClass());
				}
			}
		});
		c.in = "1";
		c.execute();
		// System.out.println(c.get(c.op2, "cmdOut"));
		assertEquals("CMD2(3.2)", c.out);
	}
}