Examples of org.cometd.bayeux.Message

org.cometd.bayeux.Message

The Bayeux protocol exchange information by means of messages.

This interface represents the API of a Bayeux message, and consists mainly of convenience methods to access the known fields of the message map.

This interface comes in both an immutable and {@link Mutable mutable} versions.Mutability may be deeply enforced by an implementation, so that it is not correct to cast a passed Message, to a Message.Mutable, even if the implementation allows this.

        // Second client must remain in long poll mode
        assertEquals(1, connects2.size());


        // Third client must be in normal poll mode
        assertTrue(connects3.size() > 1);
        Message lastConnect3 = new LinkedList<>(connects3).getLast();
        Map<String,Object> advice3 = lastConnect3.getAdvice();
        assertNotNull(advice3);
        assertSame(Boolean.TRUE, advice3.get("multiple-clients"));


        // Wait for the first and second clients to re-issue a long poll
        Thread.sleep(timeout);


        // First and second clients must still be in long poll mode
        assertEquals(2, connects1.size());
        assertEquals(2, connects2.size());


        // Abort abruptly the first client
        // Third client must switch to long poll
        client1.abort();


        // Sleep another timeout to be sure client1 does not poll
        Thread.sleep(timeout);
        assertEquals(2, connects1.size());


        // Loop until client3 switched to long poll
        for (int i = 0; i < 10; ++i)
        {
            lastConnect3 = new LinkedList<>(connects3).getLast();
            advice3 = lastConnect3.getAdvice();
            if (advice3 == null || !advice3.containsKey("multiple-clients"))
                break;
            Thread.sleep(timeout / 10);
        }


        lastConnect3 = new LinkedList<>(connects3).getLast();
        advice3 = lastConnect3.getAdvice();
        assertTrue(advice3 == null || !advice3.containsKey("multiple-clients"));


        disconnectBayeuxClient(client2);


        disconnectBayeuxClient(client3);

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        Assert.assertEquals(200, response.getStatus());


        JSONContext.Client jsonContext = new JettyJSONContextClient();
        Message.Mutable[] messages = jsonContext.parse(response.getContentAsString());
        Assert.assertEquals(1, messages.length);
        Message message = messages[0];
        Assert.assertFalse(message.isSuccessful());


        publish = newBayeuxRequest("[{" +
                "\"channel\": \"/service/foo\"," +
                "\"clientId\": \"" + clientId + "\"," +
                "\"data\": {}" +
                "}]");
        response = publish.send();
        Assert.assertEquals(200, response.getStatus());


        messages = jsonContext.parse(response.getContentAsString());
        Assert.assertEquals(1, messages.length);
        message = messages[0];
        Assert.assertTrue(message.isSuccessful());
    }

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        Assert.assertEquals(200, response.getStatus());


        JSONContext.Client jsonContext = new JettyJSONContextClient();
        Message.Mutable[] messages = jsonContext.parse(response.getContentAsString());
        Assert.assertEquals(1, messages.length);
        Message message = messages[0];
        Assert.assertFalse(message.isSuccessful());


        // Check that publishing to another channel does not involve authorizers
        Request grantedPublish = newBayeuxRequest("[{" +
                "\"channel\": \"/foo\"," +
                "\"clientId\": \"" + clientId + "\"," +
                "\"data\": {}" +
                "}]");
        response = grantedPublish.send();
        Assert.assertEquals(200, response.getStatus());


        messages = jsonContext.parse(response.getContentAsString());
        Assert.assertEquals(1, messages.length);
        message = messages[0];
        Assert.assertTrue(message.isSuccessful());
    }

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        Assert.assertEquals(200, response.getStatus());


        JSONContext.Client jsonContext = new JettyJSONContextClient();
        Message.Mutable[] messages = jsonContext.parse(response.getContentAsString());
        Assert.assertEquals(1, messages.length);
        Message message = messages[0];
        Assert.assertTrue(message.isSuccessful());
    }

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        Assert.assertEquals(200, response.getStatus());


        JSONContext.Client jsonContext = new JettyJSONContextClient();
        Message.Mutable[] messages = jsonContext.parse(response.getContentAsString());
        Assert.assertEquals(1, messages.length);
        Message message = messages[0];
        Assert.assertFalse(message.isSuccessful());


        // Check that publishing to another channel does not involve authorizers
        Request grantedPublish = newBayeuxRequest("[{" +
                "\"channel\": \"/foo\"," +
                "\"clientId\": \"" + clientId + "\"," +
                "\"data\": {}" +
                "}]");
        response = grantedPublish.send();
        Assert.assertEquals(200, response.getStatus());


        messages = jsonContext.parse(response.getContentAsString());
        Assert.assertEquals(1, messages.length);
        message = messages[0];
        Assert.assertTrue(message.isSuccessful());
    }

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        Assert.assertEquals(200, response.getStatus());


        JSONContext.Client jsonContext = new JettyJSONContextClient();
        Message.Mutable[] messages = jsonContext.parse(response.getContentAsString());
        Assert.assertEquals(1, messages.length);
        Message message = messages[0];
        Assert.assertTrue(message.isSuccessful());


        // Check that publishing again fails (the authorizer has been removed)
        Request grantedPublish = newBayeuxRequest("[{" +
                "\"channel\": \"" + channelName + "\"," +
                "\"clientId\": \"" + clientId + "\"," +
                "\"data\": {}" +
                "}]");
        response = grantedPublish.send();
        Assert.assertEquals(200, response.getStatus());


        messages = jsonContext.parse(response.getContentAsString());
        Assert.assertEquals(1, messages.length);
        message = messages[0];
        Assert.assertFalse(message.isSuccessful());
    }

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    private void checkResponse(ContentResponse reply, String reconnectAdvice) throws ParseException, UnsupportedEncodingException
    {
        JSONContext.Client jsonContext = new JettyJSONContextClient();
        Message.Mutable[] responses = jsonContext.parse(reply.getContentAsString());
        Assert.assertEquals(1, responses.length);
        Message response = responses[0];
        Map<String, Object> advice = response.getAdvice();
        Assert.assertNotNull(advice);
        Assert.assertEquals(reconnectAdvice, advice.get(Message.RECONNECT_FIELD));
        Map<String, Object> ext = response.getExt();
        Assert.assertNotNull(ext);
        @SuppressWarnings("unchecked")
        Map<String, Object> extra = (Map<String, Object>)ext.get("com.acme");
        Assert.assertNotNull(extra);
        Assert.assertEquals("test", extra.get("failure"));

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        response = publish.send();
        Assert.assertEquals(200, response.getStatus());


        Assert.assertTrue(service.await(5000));


        Message message = service.getMessage();
        Assert.assertNotNull(message);
        Assert.assertNotNull(message.getChannel());
        Assert.assertNotNull(message.getData());
    }

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