1 files changed, 104 insertions, 0 deletions
diff --git a/v3po/translate-impl/src/main/java/io/fd/honeycomb/v3po/translate/impl/read/CompositeChildReader.java b/v3po/translate-impl/src/main/java/io/fd/honeycomb/v3po/translate/impl/read/CompositeChildReader.java
new file mode 100644
index 000000000..46a59bb90
--- /dev/null
+++ b/v3po/translate-impl/src/main/java/io/fd/honeycomb/v3po/translate/impl/read/CompositeChildReader.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2016 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.v3po.translate.impl.read;
+
+import com.google.common.annotations.Beta;
+import com.google.common.base.Optional;
+import io.fd.honeycomb.v3po.translate.read.ReadContext;
+import io.fd.honeycomb.v3po.translate.read.ReadFailedException;
+import io.fd.honeycomb.v3po.translate.util.RWUtils;
+import io.fd.honeycomb.v3po.translate.read.ChildReader;
+import io.fd.honeycomb.v3po.translate.spi.read.ChildReaderCustomizer;
+import java.util.List;
+import javax.annotation.Nonnull;
+import javax.annotation.concurrent.ThreadSafe;
+import org.opendaylight.yangtools.concepts.Builder;
+import org.opendaylight.yangtools.yang.binding.Augmentation;
+import org.opendaylight.yangtools.yang.binding.ChildOf;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+/**
+ * Composite implementation of {@link ChildReader} able to place the read result into
+ * parent builder object.
+ */
+@Beta
+@ThreadSafe
+public final class CompositeChildReader<C extends DataObject, B extends Builder<C>> extends AbstractCompositeReader<C, B>
+    implements ChildReader<C> {
+
+    private final ChildReaderCustomizer<C, B> customizer;
+
+    /**
+     * Create new {@link CompositeChildReader}
+     *
+     * @param managedDataObjectType Class object for managed data type
+     * @param childReaders Child nodes(container, list) readers
+     * @param augReaders Child augmentations readers
+     * @param customizer Customizer instance to customize this generic reader
+     *
+     */
+    public CompositeChildReader(@Nonnull final Class<C> managedDataObjectType,
+                                @Nonnull final List<ChildReader<? extends ChildOf<C>>> childReaders,
+                                @Nonnull final List<ChildReader<? extends Augmentation<C>>> augReaders,
+                                @Nonnull final ChildReaderCustomizer<C, B> customizer) {
+        super(managedDataObjectType, childReaders, augReaders);
+        this.customizer = customizer;
+    }
+
+    /**
+     * @see {@link CompositeChildReader#CompositeChildReader(Class, List, List, ChildReaderCustomizer)}
+     */
+    public CompositeChildReader(@Nonnull final Class<C> managedDataObjectType,
+                                @Nonnull final List<ChildReader<? extends ChildOf<C>>> childReaders,
+                                @Nonnull final ChildReaderCustomizer<C, B> customizer) {
+        this(managedDataObjectType, childReaders, RWUtils.<C>emptyAugReaderList(), customizer);
+    }
+
+    /**
+     * @see {@link CompositeChildReader#CompositeChildReader(Class, List, List, ChildReaderCustomizer)}
+     */
+    public CompositeChildReader(@Nonnull final Class<C> managedDataObjectType,
+                                @Nonnull final ChildReaderCustomizer<C, B> customizer) {
+        this(managedDataObjectType, RWUtils.<C>emptyChildReaderList(), RWUtils.<C>emptyAugReaderList(),
+            customizer);
+    }
+
+    @Override
+    public final void read(@Nonnull final InstanceIdentifier<? extends DataObject> parentId,
+                           @Nonnull final Builder<? extends DataObject> parentBuilder,
+                           @Nonnull final ReadContext ctx) throws ReadFailedException {
+        final Optional<C> read = readCurrent(RWUtils.appendTypeToId(parentId, getManagedDataObjectType()), ctx);
+
+        if(read.isPresent()) {
+            customizer.merge(parentBuilder, read.get());
+        }
+    }
+
+    @Override
+    protected void readCurrentAttributes(@Nonnull final InstanceIdentifier<C> id, @Nonnull final B builder,
+                                         @Nonnull final ReadContext ctx)
+            throws ReadFailedException {
+        customizer.readCurrentAttributes(id, builder, ctx.getContext());
+    }
+
+    @Override
+    protected B getBuilder(@Nonnull final InstanceIdentifier<C> id) {
+        return customizer.getBuilder(id);
+    }
+
+}