@Test
public void testOnlyOptional() {
config.put("optional.foo", "ch1 ch2");
config.put("optional.zebra", "ch2 ch3");
selector = ChannelSelectorFactory.create(channels, config);
Assert.assertTrue(selector instanceof MultiplexingChannelSelector);
Event event1 = new MockEvent();
Map<String, String> header1 = new HashMap<String, String>();
header1.put("myheader", "foo"); // should match ch1 ch2
event1.setHeaders(header1);
List<Channel> reqCh1 = selector.getRequiredChannels(event1);
Assert.assertTrue(reqCh1.isEmpty());
List<Channel> optCh1 = selector.getOptionalChannels(event1);
Assert.assertEquals(2, optCh1.size());
// ch2 should not be there -- since it is a required channel
Event event4 = new MockEvent();
Map<String, String> header4 = new HashMap<String, String>();
header4.put("myheader", "zebra");
event4.setHeaders(header4);
List<Channel> reqCh4 = selector.getRequiredChannels(event4);
Assert.assertTrue(reqCh4.isEmpty());
List<Channel> optCh4 = selector.getOptionalChannels(event4);
Assert.assertEquals(2, optCh4.size());
Assert.assertEquals("ch2", optCh4.get(0).getName());
Assert.assertEquals("ch3", optCh4.get(1).getName());
}
@Test
public void testSelection() throws Exception {
config.put("mapping.foo", "ch1 ch2");
config.put("mapping.bar", "ch2 ch3");
config.put("mapping.xyz", "ch1 ch2 ch3");
config.put("default", "ch1 ch3");
selector = ChannelSelectorFactory.create(channels, config);
Assert.assertTrue(selector instanceof MultiplexingChannelSelector);
Event event1 = new MockEvent();
Map<String, String> header1 = new HashMap<String, String>();
header1.put("myheader", "foo"); // should match ch1 ch2
event1.setHeaders(header1);
List<Channel> reqCh1 = selector.getRequiredChannels(event1);
Assert.assertEquals(2, reqCh1.size());
Assert.assertTrue(reqCh1.get(0).getName().equals("ch1"));
Assert.assertTrue(reqCh1.get(1).getName().equals("ch2"));
List<Channel> optCh1 = selector.getOptionalChannels(event1);
Assert.assertTrue(optCh1.size() == 1);
// ch2 should not be there -- since it is a required channel
Assert.assertTrue(optCh1.get(0).getName().equals("ch3"));
Event event2 = new MockEvent();
Map<String, String> header2 = new HashMap<String, String>();
header2.put("myheader", "bar"); // should match ch2 ch3
event2.setHeaders(header2);
List<Channel> reqCh2 = selector.getRequiredChannels(event2);
Assert.assertEquals(2, reqCh2.size());
Assert.assertTrue(reqCh2.get(0).getName().equals("ch2"));
Assert.assertTrue(reqCh2.get(1).getName().equals("ch3"));
List<Channel> optCh2 = selector.getOptionalChannels(event2);
Assert.assertTrue(optCh2.isEmpty());
Event event3 = new MockEvent();
Map<String, String> header3 = new HashMap<String, String>();
header3.put("myheader", "xyz"); // should match ch1 ch2 ch3
event3.setHeaders(header3);
List<Channel> reqCh3 = selector.getRequiredChannels(event3);
Assert.assertEquals(3, reqCh3.size());
Assert.assertTrue(reqCh3.get(0).getName().equals("ch1"));
Assert.assertTrue(reqCh3.get(1).getName().equals("ch2"));
Assert.assertTrue(reqCh3.get(2).getName().equals("ch3"));
List<Channel> optCh3 = selector.getOptionalChannels(event3);
// All of the optional channels should go away.
Assert.assertTrue(optCh3.size() == 0);
}
// If the header information cannot map the event to any of the channels
// it should always be mapped to the default channel(s).
@Test
public void testNoSelection() throws Exception {
config.put("mapping.foo", "ch1 ch2");
config.put("mapping.bar", "ch2 ch3");
config.put("mapping.xyz", "ch1 ch2 ch3");
config.put("default", "ch1 ch3");
selector = ChannelSelectorFactory.create(channels, config);
Assert.assertTrue(selector instanceof MultiplexingChannelSelector);
Event noHeaderEvent = new MockEvent();
List<Channel> reqCh1 = selector.getRequiredChannels(noHeaderEvent);
List<Channel> optCh1 = selector.getOptionalChannels(noHeaderEvent);
Assert.assertEquals(2, reqCh1.size());
Assert.assertTrue(reqCh1.get(0).getName().equals("ch1"));
Assert.assertTrue(reqCh1.get(1).getName().equals("ch3"));
Assert.assertTrue(optCh1.isEmpty());
Map<String, String> header2 = new HashMap<String, String>();
header2.put("someheader", "foo");
Event invalidHeaderEvent = new MockEvent();
invalidHeaderEvent.setHeaders(header2);
List<Channel> reqCh2 = selector.getRequiredChannels(invalidHeaderEvent);
List<Channel> optCh2 = selector.getOptionalChannels(invalidHeaderEvent);
Assert.assertEquals(2, reqCh2.size());
Assert.assertTrue(reqCh2.get(0).getName().equals("ch1"));
Assert.assertTrue(reqCh2.get(1).getName().equals("ch3"));
Assert.assertTrue(optCh2.isEmpty());
Map<String, String> header3 = new HashMap<String, String>();
header3.put("myheader", "bar1");
Event unmatchedHeaderEvent = new MockEvent();
unmatchedHeaderEvent.setHeaders(header3);
List<Channel> reqCh3 = selector.getRequiredChannels(unmatchedHeaderEvent);
List<Channel> optCh3 = selector.getOptionalChannels(unmatchedHeaderEvent);
Assert.assertEquals(2, reqCh3.size());
Assert.assertTrue(reqCh3.get(0).getName().equals("ch1"));
Assert.assertTrue(reqCh3.get(1).getName().equals("ch3"));
Assert.assertTrue(optCh3.isEmpty());
Map<String, String> header4 = new HashMap<String, String>();
header4.put("myheader", "zebra");
Event zebraEvent = new MockEvent();
zebraEvent.setHeaders(header4);
List<Channel> reqCh4 = selector.getRequiredChannels(zebraEvent);
List<Channel> optCh4 = selector.getOptionalChannels(zebraEvent);
Assert.assertEquals(2, reqCh4.size());
Assert.assertTrue(reqCh4.get(0).getName().equals("ch1"));
Assert.assertTrue(reqCh4.get(1).getName().equals("ch3"));
// Since ch1 is also in default list, it is removed.
Assert.assertTrue(optCh4.size() == 1);
Assert.assertTrue(optCh4.get(0).getName().equals("ch2"));
List<Channel> allChannels = selector.getAllChannels();
Assert.assertTrue(allChannels.size() == 3);
Assert.assertTrue(allChannels.get(0).getName().equals("ch1"));
Assert.assertTrue(allChannels.get(1).getName().equals("ch2"));
Assert.assertTrue(allChannels.get(2).getName().equals("ch3"));
}
