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, 86 insertions, 0 deletions

diff --git a/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/GenericIntReaderTest.java b/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/GenericIntReaderTest.java
new file mode 100644
index 000000000..ef3de457f
--- /dev/null
+++ b/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/GenericIntReaderTest.java
@@ -0,0 +1,86 @@
+/*
+ * 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;
+
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyZeroInteractions;
+import static org.mockito.Mockito.when;
+
+import io.fd.honeycomb.translate.read.InitFailedException;
+import io.fd.honeycomb.translate.read.ReadFailedException;
+import io.fd.honeycomb.translate.spi.read.Initialized;
+import io.fd.honeycomb.translate.spi.read.InitializingReaderCustomizer;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
+import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+import org.opendaylight.yangtools.concepts.Builder;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+
+public class GenericIntReaderTest extends AbstractReaderTest {
+
+    @Mock
+    private DataBroker broker;
+    @Mock
+    private WriteTransaction writeTx;
+
+    public GenericIntReaderTest() {
+        super(InitializingReaderCustomizer.class);
+    }
+
+    @Override
+    protected GenericReader<DataObject, Builder<DataObject>> initReader() {
+        return new GenericInitReader<>(DATA_OBJECT_ID, getCustomizer());
+    }
+
+    @Override
+    public GenericInitReader<DataObject, Builder<DataObject>> getReader() {
+        return (GenericInitReader<DataObject, Builder<DataObject>>)super.getReader();
+    }
+
+    @Override
+    public InitializingReaderCustomizer<DataObject, Builder<DataObject>> getCustomizer() {
+        return (InitializingReaderCustomizer<DataObject, Builder<DataObject>>)super.getCustomizer();
+    }
+
+    @Test
+    public void testInit() throws Exception {
+        final Initialized<DataObject> initialized = Initialized.create(DATA_OBJECT_ID, data);
+
+        when(getCustomizer().isPresent(DATA_OBJECT_ID, data, ctx)).thenReturn(true);
+        doReturn(initialized).when(getCustomizer()).init(DATA_OBJECT_ID, data, ctx);
+        when(broker.newWriteOnlyTransaction()).thenReturn(writeTx);
+
+        getReader().init(broker, DATA_OBJECT_ID, ctx);
+
+        verify(writeTx).merge(LogicalDatastoreType.CONFIGURATION, DATA_OBJECT_ID, data, true);
+        verify(writeTx).submit();
+    }
+
+    @Test(expected = InitFailedException.class)
+    public void testInitFailed() throws Exception {
+        doThrow(new ReadFailedException(DATA_OBJECT_ID)).when(getCustomizer())
+            .readCurrentAttributes(DATA_OBJECT_ID, builder, ctx);
+
+        getReader().init(broker, DATA_OBJECT_ID, ctx);
+
+        verifyZeroInteractions(writeTx);
+    }
+}
\ No newline at end of file