HONEYCOMB-331: unify initialization handling

Due to incorrect instance of check, InitSubtreeReader was never created
in CompositeReaderRegistryBuilder.getSubtreeHandler().

As a consequence, initializers registered by subtreeAdd*, were not invoked.

The patch:
- fixes mentioned check,
- makes readers implement InitReader instead of directly
  implementing Initializer
- includes missing unit tests for GenericReaders.

Change-Id: I93be59fafddb60dce00191958b5c8c62e7c2d289
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>

1 files changed, 94 insertions, 0 deletions

diff --git a/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/registry/InitSubtreeReaderTest.java b/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/registry/InitSubtreeReaderTest.java
new file mode 100644
index 000000000..a9b15ad32
--- /dev/null
+++ b/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/registry/InitSubtreeReaderTest.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ *
+ * Licensed 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 io.fd.honeycomb.translate.impl.read.registry;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.verify;
+
+import com.google.common.collect.Sets;
+import io.fd.honeycomb.translate.read.InitListReader;
+import io.fd.honeycomb.translate.read.InitReader;
+import io.fd.honeycomb.translate.read.ListReader;
+import io.fd.honeycomb.translate.read.ReadContext;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+import org.opendaylight.yangtools.concepts.Builder;
+import org.opendaylight.yangtools.yang.binding.ChildOf;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.Identifiable;
+import org.opendaylight.yangtools.yang.binding.Identifier;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+public class InitSubtreeReaderTest {
+
+    @Mock
+    private DataBroker broker;
+    @Mock
+    private InitReader<DataObject1, Builder<DataObject1>> delegate;
+    @Mock
+    private InitListReader<DataObject2, DataObject2.DataObject2Key, Builder<DataObject2>> listDelegate;
+    @Mock
+    private ReadContext ctx;
+
+    @Before
+    public void setUp() throws Exception {
+        MockitoAnnotations.initMocks(this);
+        doReturn(DataObject1.IID).when(delegate).getManagedDataObjectType();
+        doReturn(DataObject2.IID).when(listDelegate).getManagedDataObjectType();
+    }
+
+    @Test
+    public void testInit() throws Exception {
+        final InitReader<DataObject1, Builder<DataObject1>> initSubReader =
+            InitSubtreeReader.createForReader(Sets.newHashSet(DataObject1.DataObject11.IID), delegate);
+        assertFalse(initSubReader instanceof ListReader);
+
+        initSubReader.init(broker, DataObject1.IID, ctx);
+        verify(delegate).init(broker, DataObject1.IID, ctx);
+    }
+
+    @Test
+    public void testInitList() throws Exception {
+        final InitReader<DataObject2, Builder<DataObject2>> initSubReader =
+            InitSubtreeReader.createForReader(Sets.newHashSet(DataObject2.DataObject22.IID), listDelegate);
+        assertTrue(initSubReader instanceof ListReader);
+
+        initSubReader.init(broker, DataObject2.IID, ctx);
+        verify(listDelegate).init(broker, DataObject2.IID, ctx);
+    }
+
+    private abstract static class DataObject1 implements DataObject {
+        private static InstanceIdentifier<DataObject1> IID = InstanceIdentifier.create(DataObject1.class);
+        private abstract static class DataObject11 implements DataObject, ChildOf<DataObject1> {
+            private static InstanceIdentifier<DataObject11> IID = DataObject1.IID.child(DataObject11.class);
+        }
+    }
+
+    private abstract static class DataObject2 implements Identifiable<DataObject2.DataObject2Key>, DataObject {
+        private static InstanceIdentifier<DataObject2> IID = InstanceIdentifier.create(DataObject2.class);
+        abstract static class DataObject2Key implements Identifier<DataObject2> {
+        }
+        private abstract static class DataObject22 implements DataObject, ChildOf<DataObject2> {
+            public static InstanceIdentifier<DataObject22> IID = DataObject2.IID.child(DataObject22.class);
+        }
+    }
+}
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