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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.hc2vpp.docs.core;
import com.google.common.collect.ImmutableSet;
import io.fd.honeycomb.translate.ModifiableSubtreeManagerRegistryBuilder;
import io.fd.honeycomb.translate.write.Writer;
import io.fd.honeycomb.translate.write.registry.ModifiableWriterRegistryBuilder;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
import javax.annotation.Nonnull;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
/**
* Implementations of builder that collects handlers as they are bind
*/
public class CollectingWriterBuilder implements ModifiableWriterRegistryBuilder {
private final List<WriteHandler> writeHandlers;
public CollectingWriterBuilder() {
writeHandlers = new LinkedList<>();
}
private void addHandler(final Writer<? extends DataObject> handler) {
writeHandlers.add(new WriteHandler(handler));
}
private void addHandler(final Writer<? extends DataObject> handler,
final Set<InstanceIdentifier<?>> handledChildren) {
writeHandlers.add(new WriteHandler(handler, handledChildren));
}
@Override
public ModifiableSubtreeManagerRegistryBuilder<Writer<? extends DataObject>> add(
@Nonnull Writer<? extends DataObject> handler) {
addHandler(handler);
return this;
}
@Override
public ModifiableSubtreeManagerRegistryBuilder<Writer<? extends DataObject>> subtreeAdd(
@Nonnull Set<InstanceIdentifier<?>> handledChildren, @Nonnull Writer<? extends DataObject> handler) {
addHandler(handler, handledChildren);
return this;
}
@Override
public ModifiableSubtreeManagerRegistryBuilder<Writer<? extends DataObject>> addBefore(
@Nonnull Writer<? extends DataObject> handler, @Nonnull InstanceIdentifier<?> relatedType) {
addHandler(handler, Collections.singleton(relatedType));
return this;
}
@Override
public ModifiableSubtreeManagerRegistryBuilder<Writer<? extends DataObject>> addBefore(
@Nonnull Writer<? extends DataObject> handler, @Nonnull Collection<InstanceIdentifier<?>> relatedTypes) {
addHandler(handler);
return this;
}
@Override
public ModifiableSubtreeManagerRegistryBuilder<Writer<? extends DataObject>> subtreeAddBefore(
@Nonnull Set<InstanceIdentifier<?>> handledChildren, @Nonnull Writer<? extends DataObject> handler,
@Nonnull InstanceIdentifier<?> relatedType) {
addHandler(handler, handledChildren);
return null;
}
@Override
public ModifiableSubtreeManagerRegistryBuilder<Writer<? extends DataObject>> subtreeAddBefore(
@Nonnull Set<InstanceIdentifier<?>> handledChildren, @Nonnull Writer<? extends DataObject> handler,
@Nonnull Collection<InstanceIdentifier<?>> relatedTypes) {
addHandler(handler, handledChildren);
return this;
}
@Override
public ModifiableSubtreeManagerRegistryBuilder<Writer<? extends DataObject>> addAfter(
@Nonnull Writer<? extends DataObject> handler, @Nonnull InstanceIdentifier<?> relatedType) {
addHandler(handler);
return this;
}
@Override
public ModifiableSubtreeManagerRegistryBuilder<Writer<? extends DataObject>> addAfter(
@Nonnull Writer<? extends DataObject> handler, @Nonnull Collection<InstanceIdentifier<?>> relatedTypes) {
addHandler(handler);
return this;
}
@Override
public ModifiableSubtreeManagerRegistryBuilder<Writer<? extends DataObject>> subtreeAddAfter(
@Nonnull Set<InstanceIdentifier<?>> handledChildren, @Nonnull Writer<? extends DataObject> handler,
@Nonnull InstanceIdentifier<?> relatedType) {
addHandler(handler, handledChildren);
return this;
}
@Override
public ModifiableSubtreeManagerRegistryBuilder<Writer<? extends DataObject>> subtreeAddAfter(
@Nonnull Set<InstanceIdentifier<?>> handledChildren, @Nonnull Writer<? extends DataObject> handler,
@Nonnull Collection<InstanceIdentifier<?>> relatedTypes) {
addHandler(handler, handledChildren);
return this;
}
public List<WriteHandler> getWriteHandlers() {
return writeHandlers;
}
public static class WriteHandler {
private final Writer<? extends DataObject> writer;
private final Set<String> handledNodes;
public WriteHandler(Writer<? extends DataObject> writer, Set<InstanceIdentifier<?>> handledChildren) {
this.writer = writer;
this.handledNodes = ImmutableSet.<String>builder()
// add node managed by writer
.add(writer.getManagedDataObjectType().getTargetType().getName())
// and set of handled children (may be empty in case of non subtree writers)
.addAll(handledChildren.stream()
.map(InstanceIdentifier::getTargetType)
.map(Class::getName)
.collect(Collectors.toSet()))
.build();
}
public WriteHandler(final Writer<? extends DataObject> writer) {
this(writer, Collections.emptySet());
}
public Writer<? extends DataObject> getWriter() {
return writer;
}
public Set<String> getHandledNodes() {
return handledNodes;
}
}
}
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