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From aadamc...@apache.org
Subject svn commit: r479265 - in /incubator/cayenne/main/trunk/integration-test/itest-common/src/main/java/org/apache/cayenne/itest/pojo: BlockingDataChannel.java ItestSetup.java PojoContextCase.java
Date Sun, 26 Nov 2006 03:50:53 GMT
Author: aadamchik
Date: Sat Nov 25 19:50:52 2006
New Revision: 479265

URL: http://svn.apache.org/viewvc?view=rev&rev=479265
Log:
support for blocking a DataChannel queries for an ObjectContext

Added:
    incubator/cayenne/main/trunk/integration-test/itest-common/src/main/java/org/apache/cayenne/itest/pojo/BlockingDataChannel.java
Modified:
    incubator/cayenne/main/trunk/integration-test/itest-common/src/main/java/org/apache/cayenne/itest/pojo/ItestSetup.java
    incubator/cayenne/main/trunk/integration-test/itest-common/src/main/java/org/apache/cayenne/itest/pojo/PojoContextCase.java

Added: incubator/cayenne/main/trunk/integration-test/itest-common/src/main/java/org/apache/cayenne/itest/pojo/BlockingDataChannel.java
URL: http://svn.apache.org/viewvc/incubator/cayenne/main/trunk/integration-test/itest-common/src/main/java/org/apache/cayenne/itest/pojo/BlockingDataChannel.java?view=auto&rev=479265
==============================================================================
--- incubator/cayenne/main/trunk/integration-test/itest-common/src/main/java/org/apache/cayenne/itest/pojo/BlockingDataChannel.java
(added)
+++ incubator/cayenne/main/trunk/integration-test/itest-common/src/main/java/org/apache/cayenne/itest/pojo/BlockingDataChannel.java
Sat Nov 25 19:50:52 2006
@@ -0,0 +1,71 @@
+/*****************************************************************
+ *   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 org.apache.cayenne.itest.pojo;
+
+import org.apache.cayenne.CayenneRuntimeException;
+import org.apache.cayenne.DataChannel;
+import org.apache.cayenne.ObjectContext;
+import org.apache.cayenne.QueryResponse;
+import org.apache.cayenne.event.EventManager;
+import org.apache.cayenne.graph.GraphDiff;
+import org.apache.cayenne.map.EntityResolver;
+import org.apache.cayenne.query.Query;
+
+/**
+ * A DataChannel that throws on all query or update attempts.
+ * 
+ * @author Andrus Adamchik
+ */
+class BlockingDataChannel implements DataChannel {
+
+    protected DataChannel channel;
+
+    BlockingDataChannel(DataChannel channel) {
+        this.channel = channel;
+    }
+
+    /**
+     * Returns the first DataChannel that is not a blocking DataChannel in the channel
+     * chain.
+     */
+    public DataChannel getChannel() {
+        return (channel instanceof BlockingDataChannel) ? ((BlockingDataChannel) channel)
+                .getChannel() : channel;
+    }
+
+    public EntityResolver getEntityResolver() {
+        return channel.getEntityResolver();
+    }
+
+    public EventManager getEventManager() {
+        return channel.getEventManager();
+    }
+
+    public QueryResponse onQuery(ObjectContext originatingContext, Query query) {
+        throw new CayenneRuntimeException("Queries are not allowed. Attempted query: "
+                + query);
+    }
+
+    public GraphDiff onSync(
+            ObjectContext originatingContext,
+            GraphDiff changes,
+            int syncType) {
+        throw new CayenneRuntimeException("Commits are not allowed.");
+    }
+}

Modified: incubator/cayenne/main/trunk/integration-test/itest-common/src/main/java/org/apache/cayenne/itest/pojo/ItestSetup.java
URL: http://svn.apache.org/viewvc/incubator/cayenne/main/trunk/integration-test/itest-common/src/main/java/org/apache/cayenne/itest/pojo/ItestSetup.java?view=diff&rev=479265&r1=479264&r2=479265
==============================================================================
--- incubator/cayenne/main/trunk/integration-test/itest-common/src/main/java/org/apache/cayenne/itest/pojo/ItestSetup.java
(original)
+++ incubator/cayenne/main/trunk/integration-test/itest-common/src/main/java/org/apache/cayenne/itest/pojo/ItestSetup.java
Sat Nov 25 19:50:52 2006
@@ -24,7 +24,7 @@
 
 import org.apache.cayenne.CayenneRuntimeException;
 import org.apache.cayenne.DataChannel;
-import org.apache.cayenne.ObjectContext;
+import org.apache.cayenne.access.DataContext;
 import org.apache.cayenne.access.DataDomain;
 import org.apache.cayenne.access.DataNode;
 import org.apache.cayenne.access.DbGenerator;
@@ -77,7 +77,7 @@
         return domain;
     }
 
-    public ObjectContext createObjectContext() {
+    public DataContext createDataContext() {
         return domain.createDataContext();
     }
 

Modified: incubator/cayenne/main/trunk/integration-test/itest-common/src/main/java/org/apache/cayenne/itest/pojo/PojoContextCase.java
URL: http://svn.apache.org/viewvc/incubator/cayenne/main/trunk/integration-test/itest-common/src/main/java/org/apache/cayenne/itest/pojo/PojoContextCase.java?view=diff&rev=479265&r1=479264&r2=479265
==============================================================================
--- incubator/cayenne/main/trunk/integration-test/itest-common/src/main/java/org/apache/cayenne/itest/pojo/PojoContextCase.java
(original)
+++ incubator/cayenne/main/trunk/integration-test/itest-common/src/main/java/org/apache/cayenne/itest/pojo/PojoContextCase.java
Sat Nov 25 19:50:52 2006
@@ -18,22 +18,34 @@
  ****************************************************************/
 package org.apache.cayenne.itest.pojo;
 
+import org.apache.cayenne.DataChannel;
 import org.apache.cayenne.ObjectContext;
+import org.apache.cayenne.access.DataContext;
 
 public class PojoContextCase extends PojoTestCase {
 
-    protected ObjectContext context;
+    protected DataContext context;
 
     @Override
     protected void setUp() throws Exception {
-        this.context = ItestSetup.getInstance().createObjectContext();
+        this.context = ItestSetup.getInstance().createDataContext();
     }
 
     public ObjectContext getContext() {
         return context;
     }
 
-    public void setContext(ObjectContext context) {
-        this.context = context;
+    /**
+     * Ensure that context can't send any queries doesn the channel.
+     */
+    protected void blockContextQueries() {
+        context.setChannel(new BlockingDataChannel(context.getChannel()));
+    }
+
+    protected void unblockContextQueries() {
+        DataChannel channel = context.getChannel();
+        if (channel instanceof BlockingDataChannel) {
+            context.setChannel(((BlockingDataChannel) channel).getChannel());
+        }
     }
 }



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