added a working feed adapter that also maintains state using the metadata persister mechanism. INT-786

spring-integration-feed/src/test/java/org/springframework/integration/feed/TestFeedEventDelivery.java

@@ -0,0 +1,36 @@
+package org.springframework.integration.feed;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@ContextConfiguration
+@RunWith(SpringJUnit4ClassRunner.class)
+public class TestFeedEventDelivery {
+
+    @Test
+    public void testDeliveryOfFeed() throws Exception {
+        Thread.sleep(1000 * 60);
+    }
+
+    /*  public static void main(String[] args) throws Throwable {
+        String siweb = "http://twitter.com/statuses/public_timeline.atom"; //http://localhost:8080/siweb/foo.atom";
+        FeedEntryReaderMessageSource feedEntryReaderMessageSource = new FeedEntryReaderMessageSource();
+        feedEntryReaderMessageSource.setFeedUrl(siweb);
+        feedEntryReaderMessageSource.afterPropertiesSet();
+        feedEntryReaderMessageSource.start();
+
+        while (true) {
+            Message<SyndEntry> entryMessage = feedEntryReaderMessageSource.receive();
+
+            if (entryMessage != null) {
+                SyndEntry entry = entryMessage.getPayload();
+                System.out.println((entry.getTitle() + "=" + entry.getUri()));
+            }
+
+            Thread.sleep(1000);
+        }
+    }
+ */
+}