INT-1603 added SearchReceivingMessageSource

spring-integration-twitter/src/main/java/org/springframework/integration/twitter/core/Twitter4jTemplate.java

@@ -70,7 +70,12 @@ public class Twitter4jTemplate implements TwitterOperations{
 	@Override
 	public String getProfileId() {
 		try {
-			return twitter.getScreenName();
+			if (twitter.isOAuthEnabled()){
+				return twitter.getScreenName();
+			}
+			else {
+				return "twitter-anonymous";
+			}
 		} 
 		catch (Exception e) {
 			throw new TwitterOperationException("Failed to obtain Profile ID. ", e);

spring-integration-twitter/src/main/java/org/springframework/integration/twitter/inbound/SearchReceivingMessageSource.java

@@ -0,0 +1,93 @@
+/*
+ * Copyright 2002-2010 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.integration.twitter.inbound;
+
+import java.util.List;
+
+import org.springframework.integration.MessagingException;
+import org.springframework.integration.twitter.core.SearchResults;
+import org.springframework.integration.twitter.core.Tweet;
+import org.springframework.integration.twitter.core.TwitterOperations;
+import org.springframework.util.Assert;
+
+/**
+ *
+ * @author Oleg Zhurakousky
+ * @since 2.0
+ */
+public class SearchReceivingMessageSource extends AbstractTwitterMessageSource<Tweet> {
+	/* since Twitter return 15 entries per page we need to be able to manage
+	 * how many pages deep are we willing to go. Not sure yet about exposing this attribute via namespace
+	 * but setting default to 10.
+	 */
+	private volatile int pageDepth = 10; 
+	
+	private volatile int currentPage = 1;
+	private volatile String query;
+	
+	public SearchReceivingMessageSource(TwitterOperations twitter){
+		super(twitter);
+	}
+	
+	public void setQuery(String query) {
+		Assert.hasText(query, "'query' must no be null");
+		this.query = query;
+	}
+	
+	@Override
+	 public String getComponentType() {
+		return "twitter:search-inbound-channel-adapter";  
+	}
+
+	@Override
+	Runnable getApiCallback() {
+		Runnable apiCallback = new Runnable() {	
+			public void run() {
+				try {
+					if (tweets.size() <= prefetchThreshold){
+						if (currentPage == pageDepth){
+							currentPage = 1;
+						}
+						SearchResults results = twitter.search(query, currentPage, 0);
+						List<Tweet> twetList = results.getTweets();
+						if (currentPage == 1){
+							forwardAll(twetList);
+						}
+						else {
+							for (Tweet tweet : twetList) {
+								tweets.add(tweet);
+							}
+						}
+						if (twetList != null && twetList.size() > 0){
+							currentPage++;
+						}
+						else {
+							currentPage = 1;
+						}
+					}	
+				} catch (Exception e) {
+					if (e instanceof RuntimeException){
+						throw (RuntimeException)e;
+					}
+					else {
+						throw new MessagingException("Failed to poll for Twitter mentions updates", e);
+					}
+				}
+			}
+		};
+		return apiCallback;
+	}
+}

spring-integration-twitter/src/test/java/org/springframework/integration/twitter/core/Twitter4jTemplateTests.java

@@ -135,6 +135,6 @@ public class Twitter4jTemplateTests {
 		assertTrue(tweets.get(0) instanceof Tweet);
 		assertTrue(tweets.get(1) instanceof Tweet);
 		assertTrue(tweets.get(2) instanceof Tweet);
-		
 	}
+	
 }

spring-integration-twitter/src/test/java/org/springframework/integration/twitter/inbound/SearchReceivingMessageSourceTests.java

@@ -0,0 +1,58 @@
+/**
+ * 
+ */
+package org.springframework.integration.twitter.inbound;
+
+import org.junit.Ignore;
+import org.junit.Test;
+
+import org.springframework.beans.factory.support.DefaultListableBeanFactory;
+import org.springframework.integration.Message;
+import org.springframework.integration.MessageChannel;
+import org.springframework.integration.MessagingException;
+import org.springframework.integration.channel.DirectChannel;
+import org.springframework.integration.core.MessageHandler;
+import org.springframework.integration.endpoint.SourcePollingChannelAdapter;
+import org.springframework.integration.twitter.core.Tweet;
+import org.springframework.integration.twitter.core.Twitter4jTemplate;
+import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
+
+/**
+ * @author ozhurakousky
+ *
+ */
+public class SearchReceivingMessageSourceTests {
+
+	@Test
+	@Ignore
+	public void testSearchReceiving() throws Exception{
+		DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
+		ThreadPoolTaskScheduler scheduler =  new ThreadPoolTaskScheduler();
+		scheduler.afterPropertiesSet();
+		bf.registerSingleton("taskScheduler", scheduler);
+		
+		SearchReceivingMessageSource ms = new SearchReceivingMessageSource(new Twitter4jTemplate());
+		
+		DirectChannel channel = new DirectChannel(); 
+		channel.subscribe(new MessageHandler() {
+			public void handleMessage(Message<?> message) throws MessagingException {
+				System.out.println("Message: " + ((Tweet)message.getPayload()).getCreatedAt() + " - " + ((Tweet)message.getPayload()).getText());
+			}
+		});
+		SourcePollingChannelAdapter adapter = new SourcePollingChannelAdapter();
+		adapter.setSource(ms);
+		adapter.setBeanFactory(bf);
+		adapter.setOutputChannel(channel);
+		adapter.afterPropertiesSet();
+		adapter.start();
+		
+		ms.setBeanFactory(bf);
+		ms.setQuery("#springintegration");
+
+		ms.setTaskScheduler(scheduler);
+		ms.afterPropertiesSet();
+		ms.start();
+		
+		System.in.read();
+	}
+}