Moving 2.x branches

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@835133 13f79535-47bb-0310-9956-ffa450edef68

4 files changed, 330 insertions, 0 deletions

diff --git a/sca-java-2.x/branches/sca-equinox/samples/feed-aggregator/src/main/java/feed/AggregatorImpl.java b/sca-java-2.x/branches/sca-equinox/samples/feed-aggregator/src/main/java/feed/AggregatorImpl.java
new file mode 100644
index 0000000000..70e05b3bb3
--- /dev/null
+++ b/sca-java-2.x/branches/sca-equinox/samples/feed-aggregator/src/main/java/feed/AggregatorImpl.java
@@ -0,0 +1,188 @@
+/*
+ * 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.Date;
+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://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 updated date
+        if (sort != null) {
+            entries = sort.sort(entries);
+        }
+        
+        // Add the entries to the new feed
+        // Also synthesize a feed id and updated field base on entries
+        Date feedUpdated = new Date( 0 );
+        for (Entry entry: entries) {
+        	Date entryUpdated = entry.getUpdated();
+        	if (( entryUpdated != null ) && ( entryUpdated.compareTo( feedUpdated ) > 0 )) {
+        		feedUpdated = entryUpdated;
+        	}
+            feed.addEntry(entry);
+        }
+        feed.setUpdated( feedUpdated );
+        // Note that feed id should be permanent, immutable, and unique
+        // in order to support proper ETag creation.
+        // Tough to do when the feed is regenerated with each get.
+        feed.setId( "http://tuscany.apache.org/feed", true );
+        
+        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/sca-java-2.x/branches/sca-equinox/samples/feed-aggregator/src/main/java/feed/Sort.java b/sca-java-2.x/branches/sca-equinox/samples/feed-aggregator/src/main/java/feed/Sort.java
new file mode 100644
index 0000000000..dec073c36b
--- /dev/null
+++ b/sca-java-2.x/branches/sca-equinox/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/sca-java-2.x/branches/sca-equinox/samples/feed-aggregator/src/main/java/feed/SortImpl.java b/sca-java-2.x/branches/sca-equinox/samples/feed-aggregator/src/main/java/feed/SortImpl.java
new file mode 100644
index 0000000000..f7ead126a7
--- /dev/null
+++ b/sca-java-2.x/branches/sca-equinox/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).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/sca-java-2.x/branches/sca-equinox/samples/feed-aggregator/src/main/java/launch/LaunchFeedServer.java b/sca-java-2.x/branches/sca-equinox/samples/feed-aggregator/src/main/java/launch/LaunchFeedServer.java
new file mode 100644
index 0000000000..1c549f7cd2
--- /dev/null
+++ b/sca-java-2.x/branches/sca-equinox/samples/feed-aggregator/src/main/java/launch/LaunchFeedServer.java
@@ -0,0 +1,47 @@
+/*
+ * 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 launch;
+
+import java.io.IOException;
+
+import org.apache.tuscany.sca.host.embedded.SCADomain;
+
+public class LaunchFeedServer {
+    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();
+        }
+
+
+        scaDomain.close();
+        System.out.println("Sample Feed server stopped");
+    }
+}