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/*
* 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.test.tools;
import org.opendaylight.controller.md.sal.binding.impl.BindingToNormalizedNodeCodec;
import org.opendaylight.yangtools.yang.binding.Augmentation;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.Identifiable;
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
import org.opendaylight.yangtools.yang.model.api.SchemaContext;
import org.opendaylight.yangtools.yang.model.api.SchemaNode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.annotation.Nonnull;
import java.io.InputStream;
import static com.google.common.base.Preconditions.checkState;
import static io.fd.honeycomb.translate.util.JsonUtils.readContainerEntryJson;
import static io.fd.honeycomb.translate.util.JsonUtils.readJson;
final class ContainerNodeDataProcessor extends AbstractYangContextHolder implements YangDataProcessor {
private static final Logger LOG = LoggerFactory.getLogger(ContainerNodeDataProcessor.class);
ContainerNodeDataProcessor(@Nonnull SchemaContext schemaContext, @Nonnull BindingToNormalizedNodeCodec serializer) {
super(schemaContext, serializer);
}
@Nonnull
@Override
public DataObject getNodeData(@Nonnull YangInstanceIdentifier yangInstanceIdentifier, @Nonnull String resourcePath) {
final InputStream resourceStream = this.getClass().getResourceAsStream(resourcePath);
final YangInstanceIdentifier nodeParent = getNodeParent(yangInstanceIdentifier).orElse(null);
final SchemaNode parentSchema = parentSchema(schemaContext(), serializer(), nodeParent, () -> LOG);
// to be able to process containers in root of model
if (isRoot(yangInstanceIdentifier)) {
// if root ,read as root
final ContainerNode data = readJson(schemaContext(), resourceStream, parentSchema);
checkState(data.getValue().size() == 1, "Single root expected in %s", resourcePath);
//then extracts first child
final QName rootNodeType = data.getValue().iterator().next().getNodeType();
final YangInstanceIdentifier realIdentifier = YangInstanceIdentifier.of(rootNodeType);
return nodeBinding(serializer(), realIdentifier, data).getValue();
} else {
// reads just container
final YangInstanceIdentifier.NodeIdentifier nodeIdentifier = containerNodeIdentifier(yangInstanceIdentifier);
final ContainerNode data = readContainerEntryJson(schemaContext(), resourceStream, parentSchema, nodeIdentifier);
return nodeBinding(serializer(), yangInstanceIdentifier, data.getValue().iterator().next()).getValue();
}
}
@Override
public boolean canProcess(@Nonnull YangInstanceIdentifier identifier) {
return isRoot(identifier) ||
isContainer(identifierBinding(serializer(), identifier).getTargetType());
}
private static boolean isContainer(final Class targetType) {
return !Identifiable.class.isAssignableFrom(targetType)
&& !Augmentation.class.isAssignableFrom(targetType);
}
private static YangInstanceIdentifier.NodeIdentifier containerNodeIdentifier(@Nonnull final YangInstanceIdentifier nodeIdentifier) {
return java.util.Optional.ofNullable(nodeIdentifier.getLastPathArgument())
.filter(pathArgument -> pathArgument instanceof YangInstanceIdentifier.NodeIdentifier)
.map(YangInstanceIdentifier.NodeIdentifier.class::cast)
.orElseThrow(() -> new IllegalArgumentException(
String.format("Unable to create container node identifier from %s", nodeIdentifier)));
}
}
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