Package org.apache.camel

Examples of org.apache.camel.PollingConsumer

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    }

    public Exchange receive(Endpoint endpoint) {
        LOG.debug("<<<< {}", endpoint);

        PollingConsumer consumer = getConsumer(endpoint);
        return consumer.receive();
    }
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    }

    public Exchange receive(Endpoint endpoint, long timeout) {
        LOG.debug("<<<< {}", endpoint);

        PollingConsumer consumer = getConsumer(endpoint);
        return consumer.receive(timeout);
    }
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    }

    public Exchange receiveNoWait(Endpoint endpoint) {
        LOG.debug("<<<< {}", endpoint);

        PollingConsumer consumer = getConsumer(endpoint);
        return consumer.receiveNoWait();
    }
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    public void testFilePollingConsumer() throws Exception {
        deleteDirectory("target/fpc");
        template.sendBodyAndHeader("file://target/fpc", "Hello World", Exchange.FILE_NAME, "hello.txt");

        Endpoint endpoint = context.getEndpoint("file://target/fpc?fileName=hello.txt");
        PollingConsumer consumer = endpoint.createPollingConsumer();
        consumer.start();
        Exchange exchange = consumer.receive(5000);
        assertNotNull(exchange);

        assertEquals("hello.txt", exchange.getIn().getHeader(Exchange.FILE_NAME, String.class));
        assertEquals("Hello World", exchange.getIn().getBody(String.class));

        consumer.stop();
    }
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        assertEquals("Size should be 0", 0, cache.size());

        // test that we cache at most 1000 consumers to avoid it eating to much memory
        for (int i = 0; i < 1003; i++) {
            Endpoint e = context.getEndpoint("direct:queue:" + i);
            PollingConsumer p = cache.getConsumer(e);
            assertNotNull("the polling consumer should not be null", p);
        }

        assertEquals("Size should be 1000", 1000, cache.size());
        cache.stop();
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    public void testPollingConsumer() throws Exception {
        deleteDirectory("target/enrich");
        template.sendBodyAndHeader("file:target/enrich", "Hello World", Exchange.FILE_NAME, "hello.txt");

        PollingConsumer consumer = context.getEndpoint("file:target/enrich").createPollingConsumer();
        consumer.start();
        Exchange exchange = consumer.receive(5000);
        assertNotNull(exchange);
        assertEquals("Hello World", exchange.getIn().getBody(String.class));

        // sleep a bit to ensure polling consumer would be suspended after we have used it
        Thread.sleep(500);

        // drop a new file which should not be picked up by the consumer
        template.sendBodyAndHeader("file:target/enrich", "Bye World", Exchange.FILE_NAME, "bye.txt");

        // sleep a bit to ensure polling consumer would not have picked up that file
        Thread.sleep(1000);

        File file = new File("target/enrich/bye.txt").getAbsoluteFile();
        assertTrue("File should exist " + file, file.exists());

        consumer.stop();
    }
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     * Creates a {@link PollingConsumer} and polls all pending messages on the endpoint
     * and invokes the given {@link Processor} to process each {@link Exchange} and then closes
     * down the consumer and throws any exceptions thrown.
     */
    public static void pollEndpoint(Endpoint endpoint, Processor processor, long timeout) throws Exception {
        PollingConsumer consumer = endpoint.createPollingConsumer();
        try {
            consumer.start();

            while (true) {
                Exchange exchange = consumer.receive(timeout);
                if (exchange == null) {
                    break;
                } else {
                    processor.process(exchange);
                }
            }
        } finally {
            try {
                consumer.stop();
            } catch (Exception e) {
                LOG.warn("Failed to stop PollingConsumer: " + e, e);
            }
        }
    }
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     * Creates a {@link PollingConsumer} and polls all pending messages on the endpoint
     * and invokes the given {@link Processor} to process each {@link Exchange} and then closes
     * down the consumer and throws any exceptions thrown.
     */
    public static void pollEndpoint(Endpoint endpoint, Processor processor, long timeout) throws Exception {
        PollingConsumer consumer = endpoint.createPollingConsumer();
        try {
            consumer.start();

            while (true) {
                Exchange exchange = consumer.receive(timeout);
                if (exchange == null) {
                    break;
                } else {
                    processor.process(exchange);
                }
            }
        } finally {
            try {
                consumer.stop();
            } catch (Exception e) {
                LOG.warn("Failed to stop PollingConsumer: " + e, e);
            }
        }
    }
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    @Test
    public void testPollingConsumer() throws Exception {
        template.sendBodyAndHeader(getFtpUrl(), "Hello World", Exchange.FILE_NAME, "hello.txt");

        PollingConsumer consumer = context.getEndpoint(getFtpUrl()).createPollingConsumer();
        consumer.start();
        Exchange exchange = consumer.receive(5000);
        assertNotNull(exchange);
        assertEquals("Hello World", exchange.getIn().getBody(String.class));

        // sleep a bit to ensure polling consumer would be suspended after we have used it
        Thread.sleep(1000);

        // drop a new file which should not be picked up by the consumer
        template.sendBodyAndHeader(getFtpUrl(), "Bye World", Exchange.FILE_NAME, "bye.txt");

        // sleep a bit to ensure polling consumer would not have picked up that file
        Thread.sleep(1000);

        File file = new File(FTP_ROOT_DIR + "polling/bye.txt").getAbsoluteFile();
        assertTrue("File should exist " + file, file.exists());

        // and no exchange on consumer as
        exchange = consumer.receiveNoWait();
        assertNull(exchange);

        consumer.stop();
    }
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    public void testPollingConsumer() throws Exception {
        deleteDirectory("target/enrich");
        template.sendBodyAndHeader("file:target/enrich", "Hello World", Exchange.FILE_NAME, "hello.txt");

        PollingConsumer consumer = context.getEndpoint("file:target/enrich").createPollingConsumer();
        consumer.start();
        Exchange exchange = consumer.receive(5000);
        assertNotNull(exchange);
        assertEquals("Hello World", exchange.getIn().getBody(String.class));

        // sleep a bit to ensure polling consumer would be suspended after we have used it
        Thread.sleep(1000);

        // drop a new file which should not be picked up by the consumer
        template.sendBodyAndHeader("file:target/enrich", "Bye World", Exchange.FILE_NAME, "bye.txt");

        // sleep a bit to ensure polling consumer would not have picked up that file
        Thread.sleep(1000);

        File file = new File("target/enrich/bye.txt").getAbsoluteFile();
        assertTrue("File should exist " + file, file.exists());

        // and no exchange on consumer as
        exchange = consumer.receiveNoWait();
        assertNull(exchange);

        consumer.stop();
    }
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Related Classes of org.apache.camel.PollingConsumer

  • org.apache.camel.component.file.FilePollingConsumerTest
  • org.apache.camel.component.file.remote.FromQueueThenConsumeFtpToMockTest
  • org.apache.camel.component.file.remote.FtpConsumerDeleteNoWritePermissionTest
  • org.apache.camel.component.file.remote.FtpPollingConsumerTest
  • org.apache.camel.component.jms.JmsPollingConsumerTest
  • org.apache.camel.component.jms.JmsProducerWithJMSHeaderTest
  • org.apache.camel.component.jt400.Jt400CustomPollStrategyTest
  • org.apache.camel.component.mail.InvalidConfigurationTest
  • org.apache.camel.component.rss.RssUriEncodingIssueTest
  • org.apache.camel.impl.CamelPostProcessorHelper
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