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diff --git a/branches/sca-equinox/samples/feed-aggregator-webapp/README b/branches/sca-equinox/samples/feed-aggregator-webapp/README new file mode 100644 index 0000000000..3668a7705e --- /dev/null +++ b/branches/sca-equinox/samples/feed-aggregator-webapp/README @@ -0,0 +1,55 @@ +Feed-aggregator-webapp Sample +============================= +This sample demonstrates using the Feed binding to aggregate ATOM and RSS +feeds and publish a new aggregated feed in a webapp. + +The README in the samples directory (the directory above this) provides +general instructions about building and running samples. Take a look there +first. + +As this sample provides a web app there is a manual step where the WAR file +that contains the sample is copied to your web app container. If you just want +to give this sample a go deploy the WAR file +(target/sample-feed-aggregator-webapp.war) to your web application server. + +Once the web app is deployed use your browser to visit the following URL: + +http://localhost:8080/sample-feed-aggregator-webapp + +You will then see the following displayed in your Web browser. + +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. + + +Building And Running The Sample Using Ant +------------------------------------------- +With the binary distribution the sample can be built using Ant as +follows + +cd feed-aggregator-webapp +ant package + +This should result in a war file (sample-feed-aggregator-webapp.war) in the +target directory. Copy this war file to your web app deployment directory and +follow instructions at the begining of this README. + + +Building And Running The Sample Using Maven +------------------------------------------- +With either the binary or source distributions the sample can be built and run +using Maven as follows. + +cd feed-aggregator-webapp +mvn + +This should result in a war file (sample-feed-aggregator-webapp.war) in the +target directory. Follow the steps described in the previous section for +running the web app and for the expected results. + + diff --git a/branches/sca-equinox/samples/feed-aggregator-webapp/feed-aggregator-webapp.png b/branches/sca-equinox/samples/feed-aggregator-webapp/feed-aggregator-webapp.png Binary files differnew file mode 100644 index 0000000000..1af95a5eff --- /dev/null +++ b/branches/sca-equinox/samples/feed-aggregator-webapp/feed-aggregator-webapp.png diff --git a/branches/sca-equinox/samples/feed-aggregator-webapp/feed-aggregator-webapp.svg b/branches/sca-equinox/samples/feed-aggregator-webapp/feed-aggregator-webapp.svg new file mode 100644 index 0000000000..a861a5c50f --- /dev/null +++ b/branches/sca-equinox/samples/feed-aggregator-webapp/feed-aggregator-webapp.svg @@ -0,0 +1,382 @@ +<?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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a/branches/sca-equinox/samples/feed-aggregator-webapp/pom.xml b/branches/sca-equinox/samples/feed-aggregator-webapp/pom.xml new file mode 100644 index 0000000000..3176489de1 --- /dev/null +++ b/branches/sca-equinox/samples/feed-aggregator-webapp/pom.xml @@ -0,0 +1,108 @@ +<?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>1.4-SNAPSHOT</version> + <relativePath>../../pom.xml</relativePath> + </parent> + <artifactId>sample-feed-aggregator-webapp</artifactId> + <packaging>war</packaging> + <name>Apache Tuscany SCA Atom+RSS Feed Aggregator Sample Webapp</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-webapp</artifactId> + <version>1.4-SNAPSHOT</version> + </dependency> + + <dependency> + <groupId>org.apache.tuscany.sca</groupId> + <artifactId>tuscany-binding-rss-rome</artifactId> + <version>1.4-SNAPSHOT</version> + </dependency> + + <dependency> + <groupId>org.apache.tuscany.sca</groupId> + <artifactId>tuscany-binding-atom-abdera</artifactId> + <version>1.4-SNAPSHOT</version> + </dependency> + + <dependency> + <groupId>org.apache.tuscany.sca</groupId> + <artifactId>tuscany-implementation-java-runtime</artifactId> + <version>1.4-SNAPSHOT</version> + <scope>runtime</scope> + </dependency> + + <!-- exclude stax 1.0.1 as we're also pulling in javax\xml\stream\stax-api\1.0-2 --> + <dependency> + <groupId>stax</groupId> + <artifactId>stax-api</artifactId> + <version>1.0.1</version> + <scope>provided</scope> + </dependency> + + <!-- marking dependency as provided to exclude from war file --> + <dependency> + <groupId>javax.servlet</groupId> + <artifactId>servlet-api</artifactId> + <version>2.3</version> + <scope>provided</scope> + </dependency> + + <dependency> + <groupId>junit</groupId> + <artifactId>junit</artifactId> + <version>4.2</version> + <scope>test</scope> + </dependency> + + </dependencies> + + <build> + <finalName>${artifactId}</finalName> + <plugins> + <plugin> + <groupId>org.apache.tuscany.sca</groupId> + <artifactId>tuscany-maven-ant-generator</artifactId> + <version>1.4-SNAPSHOT</version> + <executions> + <execution> + <goals> + <goal>generate</goal> + </goals> + </execution> + </executions> + </plugin> + </plugins> + </build> + +</project> diff --git a/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/java/feed/AggregatorImpl.java b/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/java/feed/AggregatorImpl.java new file mode 100644 index 0000000000..d4adf03851 --- /dev/null +++ b/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/java/feed/AggregatorImpl.java @@ -0,0 +1,178 @@ +/* + * 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.Iterator; +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.feed.synd.SyndFeedImpl; +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://tuscany.apache.org", "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://tuscany.apache.org", "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/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/java/feed/Sort.java b/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/java/feed/Sort.java new file mode 100644 index 0000000000..dec073c36b --- /dev/null +++ b/branches/sca-equinox/samples/feed-aggregator-webapp/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/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/java/feed/SortImpl.java b/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/java/feed/SortImpl.java new file mode 100644 index 0000000000..f7ead126a7 --- /dev/null +++ b/branches/sca-equinox/samples/feed-aggregator-webapp/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).getUpdated(); + Date yDate = ((Entry)yObj).getUpdated(); + if (xDate == null) + return -1; + if (newFirst) + return yDate.compareTo(xDate); + else + return xDate.compareTo(yDate); + } + }); + return Arrays.asList(entriesArray); + } +} diff --git a/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/resources/FeedAggregator.composite b/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/resources/FeedAggregator.composite new file mode 100644 index 0000000000..736563098f --- /dev/null +++ b/branches/sca-equinox/samples/feed-aggregator-webapp/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/35"/> + </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>
\ No newline at end of file diff --git a/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/webapp/META-INF/sca-contribution.xml b/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/webapp/META-INF/sca-contribution.xml new file mode 100644 index 0000000000..b67fe843ca --- /dev/null +++ b/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/webapp/META-INF/sca-contribution.xml @@ -0,0 +1,26 @@ +<?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. +--> + +<contribution xmlns="http://www.osoa.org/xmlns/sca/1.0" + targetNamespace="http://aggregator" + xmlns:a="http://aggregator"> + <deployable composite="a:FeedAggregator"/> +</contribution> + diff --git a/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/webapp/WEB-INF/web.xml b/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/webapp/WEB-INF/web.xml new file mode 100644 index 0000000000..dea3980e4d --- /dev/null +++ b/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/webapp/WEB-INF/web.xml @@ -0,0 +1,41 @@ +<?xml version="1.0" encoding="ISO-8859-1"?> +<!-- + * 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. +--> + +<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web +Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd"> +<web-app> + + <display-name>Apache Tuscany Feed Aggregator Sample</display-name> + + <filter> + <filter-name>tuscany</filter-name> + <filter-class>org.apache.tuscany.sca.host.webapp.TuscanyServletFilter</filter-class> + </filter> + + <filter-mapping> + <filter-name>tuscany</filter-name> + <url-pattern>/*</url-pattern> + </filter-mapping> + + <welcome-file-list id="WelcomeFileList"> + <welcome-file>index.html</welcome-file> + </welcome-file-list> + +</web-app> diff --git a/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/webapp/index.html b/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/webapp/index.html new file mode 100644 index 0000000000..7b33391a87 --- /dev/null +++ b/branches/sca-equinox/samples/feed-aggregator-webapp/src/main/webapp/index.html @@ -0,0 +1,32 @@ +<html> +<!-- + * 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. + --> + <head> + <title>Apache Tuscany Feed Aggregator Sample</title> + </head> + <body> + + <h2>Apache Tuscany Feed Aggregator Sample</h2> + <p>To read the aggregated feeds, point your Web browser to the following addresses:</p> + <br/><a href="atomAggregator">http://localhost:8083/sample-feed-aggregator-webapp/atomAggregator</a> + <br/><a href="atomAggregator/atomsvc">http://localhost:8083/sample-feed-aggregator-webapp/atomAggregator/atomsvc (for the Atom service document)</a> + <br/><a href="rssAggregator">http://localhost:8083/sample-feed-aggregator-webapp/rssAggregator</a> + + </body> +</html> |
