initial commit

src/main/java/com/commafeed/backend/feeds/FeedFetcher.java

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+package com.commafeed.backend.feeds;
+
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+
+import javax.ejb.AccessTimeout;
+import javax.ejb.AsyncResult;
+import javax.ejb.Asynchronous;
+import javax.ejb.Lock;
+import javax.ejb.LockType;
+import javax.ejb.Singleton;
+import javax.inject.Inject;
+
+import org.apache.http.client.HttpClient;
+import org.apache.http.client.ResponseHandler;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.impl.client.BasicResponseHandler;
+import org.apache.http.impl.client.DefaultHttpClient;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.commafeed.model.Feed;
+
+@Singleton
+public class FeedFetcher {
+
+	private static Logger log = LoggerFactory.getLogger(FeedFetcher.class);
+
+	@Inject
+	FeedParser parser;
+
+	@Asynchronous
+	@Lock(LockType.READ)
+	@AccessTimeout(value = 15, unit = TimeUnit.SECONDS)
+	public Future<Feed> fetch(String feedUrl) {
+		log.debug("Fetching feed {}", feedUrl);
+		Feed feed = null;
+
+		HttpClient httpclient = new DefaultHttpClient();
+		try {
+			HttpGet httpget = new HttpGet(feedUrl);
+			ResponseHandler<String> responseHandler = new BasicResponseHandler();
+			String responseBody = httpclient.execute(httpget, responseHandler);
+			feed = parser.parse(feedUrl, responseBody);
+		} catch (Exception e) {
+			e.printStackTrace();
+		} finally {
+			httpclient.getConnectionManager().shutdown();
+		}
+		return new AsyncResult<Feed>(feed);
+	}
+
+}