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Diffstat (limited to 'sandbox/sebastien/java/sca-node/samples/feed-aggregator')
10 files changed, 1000 insertions, 0 deletions
diff --git a/sandbox/sebastien/java/sca-node/samples/feed-aggregator/README b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/README new file mode 100644 index 0000000000..5dfe430b83 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/README @@ -0,0 +1,97 @@ +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 feed.SampleServer + +and on *nix do + +java -cp ../../lib/tuscany-sca-manifest.jar:target/sample-feed-aggregator.jar feed.SampleServer + +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/ + FeedAggregatorImpl.java - implementation of the Feed + aggregator component + SampleServer.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 + +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 + diff --git a/sandbox/sebastien/java/sca-node/samples/feed-aggregator/build.xml b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/build.xml new file mode 100644 index 0000000000..2118e13db7 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/build.xml @@ -0,0 +1,72 @@ +<!-- + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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. +--> +<project name="feed-aggregator" default="compile"> + <property name="test.class" value="feed.SampleServer" /> + <property name="test.jar" value="sample-feed-aggregator.jar" /> + + <target name="init"> + <mkdir dir="target/classes"/> + </target> + + <target name="compile" depends="init"> + <javac srcdir="src/main/java" + destdir="target/classes" + debug="on" + source="1.5" + target="1.5"> + <classpath> + <pathelement location="../../lib/tuscany-sca-manifest.jar"/> + </classpath> + </javac> + <copy todir="target/classes"> + <fileset dir="src/main/resources"/> + </copy> + <jar destfile="target/${test.jar}" basedir="target/classes"> + <manifest> + <attribute name="Main-Class" value="${test.class}" /> + </manifest> + </jar> + </target> + + <target name="run-classes"> + <java classname="${test.class}" + fork="true"> + <classpath> + <pathelement path="target/classes"/> + <pathelement location="../../lib/tuscany-sca-manifest.jar"/> + </classpath> + </java> + </target> + + <target name="run"> + <java classname="${test.class}" + fork="true"> + <classpath> + <pathelement path="target/${test.jar}"/> + <pathelement location="../../lib/tuscany-sca-manifest.jar"/> + </classpath> + </java> + </target> + + <target name="clean"> + <delete quiet="true" includeemptydirs="true"> + <fileset dir="target"/> + </delete> + </target> +</project> diff --git a/sandbox/sebastien/java/sca-node/samples/feed-aggregator/feed-aggregator.png b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/feed-aggregator.png Binary files differnew file mode 100644 index 0000000000..c8fea8a7b8 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/feed-aggregator.png diff --git a/sandbox/sebastien/java/sca-node/samples/feed-aggregator/feed-aggregator.svg b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/feed-aggregator.svg new file mode 100644 index 0000000000..72fe6a00ac --- /dev/null +++ b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/feed-aggregator.svg @@ -0,0 +1,364 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!-- + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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. 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/></flowRegion><flowPara + id="flowPara5072">Atom</flowPara></flowRoot> </g> +</svg> diff --git a/sandbox/sebastien/java/sca-node/samples/feed-aggregator/pom.xml b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/pom.xml new file mode 100644 index 0000000000..3fb6494d67 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/pom.xml @@ -0,0 +1,84 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!-- + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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. +--> +<project> + <modelVersion>4.0.0</modelVersion> + <parent> + <groupId>org.apache.tuscany.sca</groupId> + <artifactId>tuscany-sca</artifactId> + <version>2.0-incubating-SNAPSHOT</version> + <relativePath>../pom.xml</relativePath> + </parent> + <artifactId>sample-feed-aggregator</artifactId> + <name>Apache Tuscany SCA Atom+RSS Feed Aggregator Sample</name> + + <repositories> + <repository> + <id>apache.incubator</id> + <url>http://people.apache.org/repo/m2-incubating-repository</url> + </repository> + </repositories> + + <dependencies> + <dependency> + <groupId>org.apache.tuscany.sca</groupId> + <artifactId>tuscany-host-embedded</artifactId> + <version>2.0-incubating-SNAPSHOT</version> + </dependency> + + <dependency> + <groupId>org.apache.tuscany.sca</groupId> + <artifactId>tuscany-binding-rss-rome</artifactId> + <version>2.0-incubating-SNAPSHOT</version> + </dependency> + + <dependency> + <groupId>org.apache.tuscany.sca</groupId> + <artifactId>tuscany-binding-atom-abdera</artifactId> + <version>2.0-incubating-SNAPSHOT</version> + </dependency> + + <dependency> + <groupId>org.apache.tuscany.sca</groupId> + <artifactId>tuscany-implementation-java-runtime</artifactId> + <version>2.0-incubating-SNAPSHOT</version> + <scope>runtime</scope> + </dependency> + + <dependency> + <groupId>org.apache.tuscany.sca</groupId> + <artifactId>tuscany-host-tomcat</artifactId> + <version>2.0-incubating-SNAPSHOT</version> + <scope>runtime</scope> + </dependency> + + <dependency> + <groupId>junit</groupId> + <artifactId>junit</artifactId> + <version>4.2</version> + <scope>test</scope> + </dependency> + + </dependencies> + + <build> + <finalName>${artifactId}</finalName> + </build> + +</project> diff --git a/sandbox/sebastien/java/sca-node/samples/feed-aggregator/src/main/java/feed/AggregatorImpl.java b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/src/main/java/feed/AggregatorImpl.java new file mode 100644 index 0000000000..5c713f9ca4 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/src/main/java/feed/AggregatorImpl.java @@ -0,0 +1,176 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 feed; + +import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; +import java.io.OutputStreamWriter; +import java.util.ArrayList; +import java.util.List; + +import org.apache.abdera.Abdera; +import org.apache.abdera.factory.Factory; +import org.apache.abdera.model.Document; +import org.apache.abdera.model.Entry; +import org.apache.abdera.model.Feed; +import org.apache.abdera.model.Person; +import org.apache.abdera.parser.Parser; +import org.apache.tuscany.sca.binding.atom.collection.Collection; +import org.apache.tuscany.sca.binding.atom.collection.NotFoundException; +import org.osoa.sca.annotations.Property; +import org.osoa.sca.annotations.Reference; + +import com.sun.syndication.feed.synd.SyndFeed; +import com.sun.syndication.io.SyndFeedOutput; + +/** + * Implementation of an SCA component that aggregates several + * Atom and RSS feeds. + * + * @version $Rev$ $Date$ + */ +public class AggregatorImpl implements org.apache.tuscany.sca.binding.atom.collection.Collection { + + @Reference(required = false) + public Collection atomFeed1; + @Reference(required = false) + public Collection atomFeed2; + + @Reference(required = false) + public org.apache.tuscany.sca.binding.rss.collection.Collection rssFeed1; + @Reference(required = false) + public org.apache.tuscany.sca.binding.rss.collection.Collection rssFeed2; + + @Reference(required = false) + public Sort sort; + + @Property + public String feedTitle = "Aggregated Feed"; + @Property + public String feedDescription = "Anonymous Aggregated Feed"; + @Property + public String feedAuthor = "anonymous"; + + public Feed getFeed() { + + // Create a new Feed + Factory factory = Abdera.getNewFactory(); + Feed feed = factory.newFeed(); + feed.setTitle(feedTitle); + feed.setSubtitle(feedDescription); + Person author = factory.newAuthor(); + author.setName(feedAuthor); + feed.addAuthor(author); + feed.addLink("http://incubator.apache.org/tuscany", "alternate"); + + // Aggregate entries from atomFeed1, atomFeed2, rssFeed1 and rssFeed2 + List<Entry> entries = new ArrayList<Entry>(); + if (atomFeed1 != null) { + try { + entries.addAll(atomFeed1.getFeed().getEntries()); + } catch (Exception e) {} + } + if (atomFeed2 != null) { + try { + entries.addAll(atomFeed2.getFeed().getEntries()); + } catch (Exception e) {} + } + if (rssFeed1 != null) { + try { + entries.addAll(atomFeed(rssFeed1.getFeed()).getEntries()); + } catch (Exception e) {} + } + if (rssFeed2 != null) { + try { + entries.addAll(atomFeed(rssFeed2.getFeed()).getEntries()); + } catch (Exception e) {} + } + + // Sort entries by published date + if (sort != null) { + entries = sort.sort(entries); + } + + // Add the entries to the new feed + for (Entry entry: entries) { + feed.addEntry(entry); + } + + return feed; + } + + public Feed query(String queryString) { + Factory factory = Abdera.getNewFactory(); + Feed feed = factory.newFeed(); + feed.setTitle(feedTitle); + feed.setSubtitle(feedDescription); + Person author = factory.newAuthor(); + author.setName(feedAuthor); + feed.addAuthor(author); + feed.addLink("http://incubator.apache.org/tuscany", "alternate"); + + Feed allFeed = getFeed(); + if (queryString.startsWith("title=")) { + String title = queryString.substring(6); + + for (Entry entry: allFeed.getEntries()) { + if (entry.getTitle().contains(title)) { + feed.addEntry(entry); + } + } + } + return feed; + } + + public void delete(String id) throws NotFoundException { + } + + public Entry get(String id) throws NotFoundException { + return null; + } + + public Entry post(Entry entry) { + return null; + } + + public void put(String id, Entry entry) throws NotFoundException { + } + + /** + * Convert a ROME feed to an Abdera feed. + * + * @param romeFeed + * @return + */ + private static Feed atomFeed(SyndFeed syndFeed) { + ByteArrayOutputStream bos = new ByteArrayOutputStream(); + + syndFeed.setFeedType("atom_1.0"); + SyndFeedOutput syndOutput = new SyndFeedOutput(); + try { + syndOutput.output(syndFeed, new OutputStreamWriter(bos)); + } catch (Exception e) { + throw new RuntimeException(e); + } + Parser parser = Abdera.getNewParser(); + Document<Feed> document = parser.parse(new ByteArrayInputStream(bos.toByteArray())); + + return document.getRoot(); + } +} diff --git a/sandbox/sebastien/java/sca-node/samples/feed-aggregator/src/main/java/feed/SampleServer.java b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/src/main/java/feed/SampleServer.java new file mode 100644 index 0000000000..2aace3daf7 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/src/main/java/feed/SampleServer.java @@ -0,0 +1,52 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 feed; + +import java.io.IOException; + +import org.apache.tuscany.sca.host.embedded.SCADomain; + +public class SampleServer { + public static void main(String[] args) throws Exception { + + SCADomain scaDomain = SCADomain.newInstance("FeedAggregator.composite"); + + try { + System.out.println("Sample Feed server started (press enter to shutdown)"); + System.out.println(); + System.out.println("To read the aggregated feeds, point your Web browser to the following addresses:"); + System.out.println("http://localhost:8083/atomAggregator"); + System.out.println("http://localhost:8083/atomAggregator/atomsvc (for the Atom service document)"); + System.out.println("http://localhost:8083/rssAggregator"); + System.out.println(); + System.in.read(); + } catch (IOException e) { + e.printStackTrace(); + } + + // RssFeed feedService = scaDomain.getService(RssFeed.class, + // "RssAggregatorComponent"); + // SyndFeed syndFeed = feedService.get(); + // SyndFeedOutput output = new SyndFeedOutput(); + // output.output(syndFeed,new PrintWriter(System.out)); + + scaDomain.close(); + System.out.println("Sample Feed server stopped"); + } +} diff --git a/sandbox/sebastien/java/sca-node/samples/feed-aggregator/src/main/java/feed/Sort.java b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/src/main/java/feed/Sort.java new file mode 100644 index 0000000000..dec073c36b --- /dev/null +++ b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/src/main/java/feed/Sort.java @@ -0,0 +1,38 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 feed; + +import java.util.List; + +import org.apache.abdera.model.Entry; + +/** + * The Sort service business interface. + * + * @version $Rev$ $Date$ + */ +public interface Sort { + + /** + * Sort feed entries by published date. + * @param entries + * @return + */ + List<Entry> sort(List<Entry> entries); +} diff --git a/sandbox/sebastien/java/sca-node/samples/feed-aggregator/src/main/java/feed/SortImpl.java b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/src/main/java/feed/SortImpl.java new file mode 100644 index 0000000000..ea7d252ed4 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/src/main/java/feed/SortImpl.java @@ -0,0 +1,57 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 feed; + +import java.util.Arrays; +import java.util.Comparator; +import java.util.Date; +import java.util.List; + +import org.apache.abdera.model.Entry; +import org.osoa.sca.annotations.Property; + +/** + * Implementation of a Feed Sort service component. + * + * @version $Rev$ $Date$ + */ +public class SortImpl implements Sort { + + @Property + public boolean newFirst = true; + + @SuppressWarnings("unchecked") + public List<Entry> sort(List<Entry> entries) { + Entry[] entriesArray = new Entry[entries.size()]; + entriesArray = (Entry[])entries.toArray(entriesArray); + Arrays.sort(entriesArray, new Comparator() { + public int compare(final Object xObj, final Object yObj) { + Date xDate = ((Entry)xObj).getPublished(); + Date yDate = ((Entry)yObj).getPublished(); + if (xDate == null) + return -1; + if (newFirst) + return yDate.compareTo(xDate); + else + return xDate.compareTo(yDate); + } + }); + return Arrays.asList(entriesArray); + } +} diff --git a/sandbox/sebastien/java/sca-node/samples/feed-aggregator/src/main/resources/FeedAggregator.composite b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/src/main/resources/FeedAggregator.composite new file mode 100644 index 0000000000..836499e58f --- /dev/null +++ b/sandbox/sebastien/java/sca-node/samples/feed-aggregator/src/main/resources/FeedAggregator.composite @@ -0,0 +1,60 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!-- + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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. +--> +<composite xmlns="http://www.osoa.org/xmlns/sca/1.0" + xmlns:tuscany="http://tuscany.apache.org/xmlns/sca/1.0" + targetNamespace="http://aggregator" + name="FeedAggregator"> + + <service name="rssSample" promote="RssAggregator"> + <tuscany:binding.atom uri="http://localhost:8083/rssAggregator"/> + </service> + <service name="atomSample" promote="AtomAggregator"> + <tuscany:binding.atom uri="http://localhost:8083/atomAggregator"/> + </service> + + <component name="RssAggregator"> + <implementation.java class="feed.AggregatorImpl"/> + <reference name="rssfeed1"> + <tuscany:binding.rss uri="http://newsrss.bbc.co.uk/rss/newsonline_uk_edition/world/rss.xml"/> + </reference> + <reference name="rssFeed2"> + <tuscany:binding.rss uri="http://www.engadget.com/rss.xml"/> + </reference> + <reference name="sort" target="Sort"/> + <property name="feedTitle">RSS Aggregator Sample</property> + </component> + <component name="Sort"> + <implementation.java class="feed.SortImpl"/> + <property name="newFirst">true</property> + </component> + + <component name="AtomAggregator"> + <implementation.java class="feed.AggregatorImpl"/> + <reference name="sort" target="Sort"/>
+ <reference name="atomFeed1"> + <tuscany:binding.atom uri="http://www.oreillynet.com/pub/feed/1"/> + </reference> + <reference name="atomFeed2"> + <tuscany:binding.atom uri="http://feeds.feedburner.com/blogspot/Dcni?format=xml"/> + </reference> + <property name="feedTitle">Atom Aggregator Sample</property> + </component> + +</composite> |
