diff options
Diffstat (limited to 'branches/sca-java-1.4/samples/feed-aggregator/README')
| -rw-r--r-- | branches/sca-java-1.4/samples/feed-aggregator/README | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/branches/sca-java-1.4/samples/feed-aggregator/README b/branches/sca-java-1.4/samples/feed-aggregator/README new file mode 100644 index 0000000000..f73baec2fd --- /dev/null +++ b/branches/sca-java-1.4/samples/feed-aggregator/README @@ -0,0 +1,110 @@ +Feed Aggregator Sample +====================================== +This sample demonstrates using the Feed binding to aggregate ATOM and RSS +feeds and publish a new aggregated feed. + +The README in the samples directory (the directory above this) provides +general instructions about building and running samples. Take a look there +first. + +If you run the sample using ant, navigate to this sample directory and do: + +ant run + +OR if you don't have ant, on Windows do + +java -cp ..\..\lib\tuscany-sca-manifest.jar;target\sample-feed-aggregator.jar launch.LaunchFeedServer + +and on *nix do + +java -cp ../../lib/tuscany-sca-manifest.jar:target/sample-feed-aggregator.jar launch.LaunchFeedServer + +You should see the following output on the screen. + +run: + [java] Added Servlet mapping: http://localhost:8083/rssAggregator + [java] Added Servlet mapping: http://localhost:8083/atomAggregator/* + [java] Sample Feed server started (press enter to shutdown) + + [java] To read the aggregated feeds, point your Web browser to the following addresses: + [java] http://localhost:8083/atomAggregator + [java] http://localhost:8083/atomAggregator/atomsvc (for the Atom service document) + [java] http://localhost:8083/rssAggregator + +As this point the aggregated Feeds are exposed by a web server started +automatically by the SCA runtime. You can later stop the server by pressing enter. + +Now that the server is started you can point your Web browser to each URL of the +aggregated feeds to see the information in your broswer. These URLs are: + +http://localhost:8083/atomAggregator +http://localhost:8083/atomAggregator/atomsvc +http://localhost:8083/rssAggregator + +** Please note that if your browser is not configured correctly to receive +feed information, you will be prompted to open each file that contains the feed +information in xml. + +Sample Overview +--------------- +The sample provides a single component exposing a Web resource. + +web-resource/ + src/ + main/ + java/ + feed/ + AggregatorImpl.java - implementation of the Feed + aggregator component + Sort.java - utilty interface + SortImpl.java - implementation of the Sort component + launch + LaunchFeedServer.java - starts the SCA Runtime and + publishes the aggregated feeds + resources/ + FeedAggregator.composite - the SCA assembly for this sample + feed-aggregator.png - a pictorial representation of the + sample .composite file + build.xml - the Ant build file + pom.xml - the Maven build file + + +Details of how this sample works +-------------------------------- +1. AggregatorImpl is used to implement the two main components here (RSSAggregator & AtomAggregator). +2. AggregatorImpl directly implements the Tuscany Atom Collection interface. It is a component + that provides an Atom feed to respond (see tuscany/modules/binding-atom-abdera) +3. The AggregatorImpl component is not explicitly configured using nested <service> element nor its + implementation class is annotated with @Service annotation. Instead, the Tuscany Atom Collection interface + defines its services using @Remotable annotation. + +Building And Running The Sample Using Ant +----------------------------------------- +With the binary distribution the sample can be built and run using Ant using the +following commands + +cd feed-aggregator +ant compile +ant run + +You should see the following output from the run target. + +run: + [java] Added Servlet mapping: http://localhost:8083/rssAggregator + [java] Added Servlet mapping: http://localhost:8083/atomAggregator/* + [java] Sample Feed server started (press enter to shutdown) + + [java] To read the aggregated feeds, point your Web browser to the following addresses: + [java] http://localhost:8083/atomAggregator + [java] http://localhost:8083/atomAggregator/atomsvc (for the Atom service document) + [java] http://localhost:8083/rssAggregator + + +Building The Sample Using Maven +------------------------------------------- +With either the binary or source distributions the sample can be built using +Maven as follows. + +cd feed-aggregator +mvn + |