1 files changed, 358 insertions, 0 deletions
diff --git a/tags/java/sca/1.5.1/samples/feed-aggregator/src/test/java/feed/FeedAggregatorTestCase.java b/tags/java/sca/1.5.1/samples/feed-aggregator/src/test/java/feed/FeedAggregatorTestCase.java
new file mode 100644
index 0000000000..7eb52d95f1
--- /dev/null
+++ b/tags/java/sca/1.5.1/samples/feed-aggregator/src/test/java/feed/FeedAggregatorTestCase.java
@@ -0,0 +1,358 @@
+/*
+ * 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 java.io.Reader;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Date;
+import java.util.List;
+
+import junit.framework.Assert;
+
+import org.apache.abdera.Abdera;
+import org.apache.abdera.model.Base;
+import org.apache.abdera.model.Collection;
+import org.apache.abdera.model.Document;
+import org.apache.abdera.model.Entry;
+import org.apache.abdera.model.Feed;
+import org.apache.abdera.parser.Parser;
+import org.apache.abdera.protocol.Response.ResponseType;
+import org.apache.abdera.protocol.client.AbderaClient;
+import org.apache.abdera.protocol.client.ClientResponse;
+import org.apache.abdera.protocol.client.RequestOptions;
+import org.apache.abdera.writer.Writer;
+import org.apache.abdera.writer.WriterFactory;
+import org.apache.tuscany.sca.host.embedded.SCADomain;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/**
+ * Tests use of server provided feed entity tags for Atom binding in Tuscany.
+ * Tests conditional gets (e.g. get if-none-match) or conditional posts (post
+ * if-match) using entity tags and last modified entries in headers. Uses the
+ * SCA provided Provider composite to act as a server. Uses the Abdera provided
+ * Client to act as a client.
+ */
+public class FeedAggregatorTestCase {
+    public final static String providerURI = "http://localhost:8083/atomAggregator";
+    protected static SCADomain scaProviderDomain;
+    protected static Abdera abdera;
+    protected static AbderaClient client;
+    protected static Parser abderaParser;
+    protected static String eTag;
+    protected static Date lastModified;
+    protected static long contentLength;
+    protected static int numberEntries;
+    protected static final SimpleDateFormat dateFormat = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss Z"); // RFC822 date time
+
+    @BeforeClass
+    public static void init() throws Exception {
+        try {
+            System.out.println(">>>FeedAggregatorTest.init");
+            scaProviderDomain = SCADomain.newInstance("FeedAggregator.composite");
+            abdera = new Abdera();
+            client = new AbderaClient(abdera);
+            abderaParser = Abdera.getNewParser();
+        } catch (Throwable e) {
+            System.out.println(e);
+            e.printStackTrace();
+        }
+    }
+
+    @AfterClass
+    public static void destroy() throws Exception {
+        System.out.println(">>>FeedAggregatorTest.destroy");
+        scaProviderDomain.close();
+    }
+
+    @Test
+    public void testPrelim() throws Exception {
+        Assert.assertNotNull(scaProviderDomain);
+        Assert.assertNotNull(client);
+    }
+
+    @Test
+    public void testFeedBasics() throws Exception {
+        System.out.println(">>>FeedAggregatorTest.testFeedBasics");
+        RequestOptions opts = new RequestOptions();
+        // Normal feed request
+        ClientResponse res = client.get(providerURI, opts);
+        Assert.assertNotNull(res);
+        try {
+            // Assert feed provided since no predicates
+            Assert.assertEquals(200, res.getStatus());
+            Assert.assertEquals(ResponseType.SUCCESS, res.getType());
+            // AtomTestCaseUtils.printResponseHeaders( "Feed response headers:",
+            // "   ", res );
+
+            // Perform other tests on feed.
+            contentLength = getContentLength(res);
+            System.out.println("FeedAggregatorTest.testFeedBasics full contentLength=" + contentLength);
+
+            Document<Feed> doc = res.getDocument();
+            Assert.assertNotNull(doc);
+            Feed feed = doc.getRoot();
+            Assert.assertNotNull(feed);
+
+            // printFeed( "Feed values", "   ", feed );
+            // RFC 4287 requires non-null id, title, updated elements
+            Assert.assertNotNull(feed.getId());
+            Assert.assertNotNull(feed.getTitle());
+            Assert.assertNotNull(feed.getUpdated());
+
+            eTag = res.getHeader("ETag");
+            Assert.assertNotNull(eTag);
+            lastModified = res.getLastModified();
+            Assert.assertNotNull(lastModified);
+
+            numberEntries = getEntryCount(feed);
+            System.out.println("FeedAggregatorTest.testFeedBasics number entries=" + numberEntries);
+
+            // printFeed( "Aggregated Feed Contents:", "   ", feed );
+            // System.out.println( "FeedAggregatorTest.testFeedBasics feed=" +
+            // feed );
+            // printResponseHeaders( "Aggregated Feed response headers:", "   ",
+            // res );
+            // System.out.println("Aggregated Feed response body:");
+            // prettyPrint(abdera, res.getDocument());
+            // printEntryUpdates( "Aggregated Feed feed updates", "   ", feed );
+        } finally {
+            res.release();
+        }
+    }
+
+    @Test
+    public void testUnmodifiedGetIfModified() throws Exception {
+        System.out.println(">>>FeedAggregatorTest.testFeedUnmodifiedGetIfModified");
+        // Feed request with predicates
+        RequestOptions opts = new RequestOptions();
+        final String contentType = "application/atom+xml";
+        opts.setContentType(contentType);
+        opts.setHeader("If-Modified-Since", dateFormat.format(new Date(0)));
+
+        ClientResponse res = client.get(providerURI, opts);
+        Assert.assertNotNull(res);
+        try {
+            // Should return 200 - Feed provided since feed is changed.
+            Assert.assertEquals(200, res.getStatus());
+            Assert.assertEquals(ResponseType.SUCCESS, res.getType());
+
+            String thisETag = res.getHeader("ETag");
+            Assert.assertNotNull(thisETag);
+            Date thisLastModified = res.getLastModified();
+            Assert.assertNotNull(thisLastModified);
+
+            // Entry count and body size should be equal to basic request
+            long thisContentLength = getContentLength(res);
+
+            Document<Feed> doc = res.getDocument();
+            Assert.assertNotNull(doc);
+            Feed feed = doc.getRoot();
+            Assert.assertNotNull(feed);
+            int thisNumberEntries = getEntryCount(feed);
+            // System.out.println(
+            // "FeedAggregatorTest.UnmodifiedGetIfModified number entries=" +
+            // numberEntries + ", this number entries=" + thisNumberEntries ) ;
+        } finally {
+            res.release();
+        }
+    }
+
+    @Test
+    public void testUnmodifiedGetIfUnModified() throws Exception {
+        System.out.println(">>>FeedAggregatorTest.testFeedUnmodifiedGetIfUnModified");
+        // Feed request with predicates
+        RequestOptions opts = new RequestOptions();
+        final String contentType = "application/atom+xml";
+        opts.setContentType(contentType);
+        opts.setHeader("If-Unmodified-Since", dateFormat.format(new Date(0)));
+
+        ClientResponse res = client.get(providerURI, opts);
+        Assert.assertNotNull(res);
+        try {
+            // Should return 304 - Feed not provided since feed is modified
+            // since.
+            Assert.assertEquals(304, res.getStatus());
+
+            // Entry count and body size should be equal to basic request
+            long thisContentLength = getContentLength(res);
+            System.out
+                .println("FeedAggregatorTest.UnModifiedGetIfUnModified saved " + (contentLength - thisContentLength)
+                    + " bytes of network traffic due to caching.");
+        } finally {
+            res.release();
+        }
+    }
+
+    /** Print feed vital fields. */
+    public static void printFeed(String title, String indent, Feed feed) {
+        if (feed == null) {
+            System.out.println(title + " feed is null");
+            return;
+        }
+
+        System.out.println(title);
+        System.out.println(indent + "id=" + feed.getId());
+        System.out.println(indent + "title=" + feed.getTitle());
+        System.out.println(indent + "updated=" + feed.getUpdated());
+        System.out.println(indent + "author=" + feed.getAuthor());
+        System.out.println(indent + "self link=" + feed.getSelfLink());
+        Collection collection = feed.getCollection();
+        if (collection == null) {
+            System.out.println(indent + "collection=null");
+        } else {
+            System.out.println(indent + "collection=" + collection);
+        }
+    }
+
+    /* Print headers of request. */
+    public static void printRequestHeaders(String title, String indent, RequestOptions request) {
+        System.out.println(title);
+        if (request == null) {
+            System.out.println(indent + " request is null");
+            return;
+        }
+        String[] headerNames = request.getHeaderNames();
+        for (String headerName : headerNames) {
+            String header = request.getHeader(headerName);
+            System.out.println(indent + " header name,value=" + headerName + "," + header);
+        }
+    }
+
+    /* Print headers of response. */
+    public static void printResponseHeaders(String title, String indent, ClientResponse response) {
+        System.out.println(title);
+        if (response == null) {
+            System.out.println(indent + " response is null");
+            return;
+        }
+        String[] headerNames = response.getHeaderNames();
+        for (String headerName : headerNames) {
+            String header = response.getHeader(headerName);
+            System.out.println(indent + " header name,value=" + headerName + "," + header);
+        }
+
+    }
+
+    /** Pretty print the document body. */
+    public static void prettyPrint(Abdera abdera, Base doc) throws IOException {
+        WriterFactory factory = abdera.getWriterFactory();
+        Writer writer = factory.getWriter("prettyxml");
+        writer.writeTo(doc, System.out);
+        System.out.println();
+    }
+
+    /** Print the updated elements of the feed entries. */
+    public static void printEntryUpdates(String title, String indent, Feed feed) {
+        if (feed == null) {
+            System.out.println(title + " feed is null");
+            return;
+        }
+
+        System.out.println(title);
+        List<Entry> entries = feed.getEntries();
+        if (entries == null) {
+            System.out.println(indent + " null entries");
+        }
+        System.out.println(indent + "entries size=" + entries.size());
+
+        int i = 0;
+        for (Entry entry : entries) {
+            String entryTitle = entry.getTitle();
+            if ((entryTitle != null) && (entryTitle.length() > 20))
+                entryTitle = entryTitle.substring(0, 20);
+            // System.out.println( indent + i++ + ": title=\"" + entryTitle +
+            // "\", updated=" + entry.getUpdated() + ", published=" +
+            // entry.getPublished() );
+            System.out.println(indent + i++ + ": title=\"" + entryTitle + "\", updated=" + entry.getUpdated());
+        }
+    }
+
+    /** Get the length of the response body content. */
+    public static long getContentLength(ClientResponse response) {
+        // getContentLenght returns -1
+        // contentLength = response.getContentLength();
+        try {
+            Reader reader = response.getReader();
+            long actualSkip = reader.skip(Long.MAX_VALUE);
+            return actualSkip;
+        } catch (IOException e) {
+        }
+        return -1L;
+    }
+
+    /** Get a count of entries in the feed. */
+    public static int getEntryCount(Feed feed) {
+        if (feed == null) {
+            return 0;
+        }
+
+        List<Entry> entries = feed.getEntries();
+        if (entries == null) {
+            return 0;
+        }
+        return entries.size();
+    }
+
+    /**
+     * Given a feed, determine the median point of the entries. Use the updated
+     * field of the entries to determine median.
+     * 
+     * @param feed
+     * @return
+     */
+    public static Date getUpdatedMedian(Feed feed) {
+        Date sentinal = null;
+        if (feed == null) {
+            return sentinal;
+        }
+
+        List<Entry> entries = feed.getEntries();
+        if (entries == null) {
+            return sentinal;
+        }
+        int size = entries.size();
+        if (size == 0) {
+            return sentinal;
+        }
+        // System.out.println( "getUpdatedMedian entries size=" +
+        // entries.size());
+        ArrayList<Date> updates = new ArrayList<Date>(size);
+
+        for (Entry entry : entries) {
+            Date entryUpdated = entry.getUpdated();
+            if (entryUpdated == null) {
+                entryUpdated = new Date(0);
+            }
+            updates.add(entryUpdated);
+        }
+        Collections.sort(updates);
+        // System.out.println( "getUpdatedMedian entry min update=" +
+        // updates.get( 0 ));
+        // System.out.println( "getUpdatedMedian entry max update=" +
+        // updates.get( size - 1 ));
+        Date median = updates.get(size / 2);
+        // System.out.println( "getUpdatedMedian entry max median=" + median );
+        return median;
+    }
+}