| package org.apache.qpid.proton.engine; |
| |
| import static org.junit.Assert.*; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| |
| import org.apache.qpid.proton.reactor.Reactor; |
| import org.junit.Test; |
| |
| public class EventDelegationTest { |
| |
| private ArrayList<String> trace = new ArrayList<String>(); |
| |
| class ExecutionFlowTracer extends BaseHandler { |
| protected String name; |
| |
| ExecutionFlowTracer(String name) { |
| this.name = name; |
| } |
| |
| @Override |
| public void onReactorInit(Event e) { |
| trace.add(name); |
| } |
| } |
| |
| class DelegatingFlowTracer extends ExecutionFlowTracer { |
| public DelegatingFlowTracer(String name) { |
| super(name); |
| } |
| |
| @Override |
| public void onReactorInit(Event e) { |
| trace.add("(" + name); |
| e.delegate(); |
| trace.add(name + ")"); |
| } |
| } |
| |
| Handler assemble(Handler outer, Handler...inner) { |
| for(Handler h : inner) { |
| outer.add(h); |
| } |
| return outer; |
| } |
| |
| @Test |
| public void testImplicitDelegate() throws IOException { |
| Handler h = |
| assemble( |
| new ExecutionFlowTracer("A"), |
| assemble( |
| new ExecutionFlowTracer("A.A"), |
| new ExecutionFlowTracer("A.A.A"), |
| new ExecutionFlowTracer("A.A.B") |
| ), |
| assemble( |
| new ExecutionFlowTracer("A.B") |
| ) |
| ); |
| Reactor r = Reactor.Factory.create(); |
| r.getHandler().add(h); |
| r.run(); |
| assertArrayEquals(new String[]{"A", "A.A", "A.A.A", "A.A.B", "A.B"}, trace.toArray()); |
| } |
| |
| @Test |
| public void testExplicitDelegate() throws IOException { |
| Handler h = |
| assemble( |
| new ExecutionFlowTracer("A"), |
| assemble( |
| new DelegatingFlowTracer("A.A"), |
| new ExecutionFlowTracer("A.A.A"), |
| new ExecutionFlowTracer("A.A.B") |
| ), |
| assemble( |
| new ExecutionFlowTracer("A.B") |
| ) |
| ); |
| Reactor r = Reactor.Factory.create(); |
| r.getHandler().add(h); |
| r.run(); |
| assertArrayEquals(new String[]{"A", "(A.A", "A.A.A", "A.A.B", "A.A)", "A.B"}, trace.toArray()); |
| } |
| |
| } |