org.opendaylight.mdsal.binding.dom.adapter.BindingDOMDataBrokerAdapter Maven / Gradle / Ivy
/*
* Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.mdsal.binding.dom.adapter;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.collect.ClassToInstanceMap;
import com.google.common.collect.ImmutableSet;
import java.util.Set;
import org.eclipse.jdt.annotation.NonNull;
import org.opendaylight.mdsal.binding.api.DataBroker;
import org.opendaylight.mdsal.binding.api.DataTreeChangeListener;
import org.opendaylight.mdsal.binding.api.DataTreeChangeService;
import org.opendaylight.mdsal.binding.api.ReadTransaction;
import org.opendaylight.mdsal.binding.api.ReadWriteTransaction;
import org.opendaylight.mdsal.binding.api.TransactionChain;
import org.opendaylight.mdsal.binding.api.WriteTransaction;
import org.opendaylight.mdsal.binding.dom.adapter.BindingDOMAdapterBuilder.Factory;
import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
import org.opendaylight.mdsal.dom.api.DOMDataBroker;
import org.opendaylight.mdsal.dom.api.DOMDataBroker.DataTreeChangeExtension;
import org.opendaylight.mdsal.dom.api.DOMService;
import org.opendaylight.yangtools.binding.DataObject;
import org.opendaylight.yangtools.binding.DataObjectReference;
import org.opendaylight.yangtools.concepts.Registration;
/**
* The DataBrokerImpl simply defers to the DOMDataBroker for all its operations. All transactions and listener
* registrations are wrapped by the DataBrokerImpl to allow binding aware components to use the DataBroker
* transparently.
*
*
* Besides this the DataBrokerImpl and it's collaborators also cache data that is already transformed from the binding
* independent to binding aware format.
*/
@VisibleForTesting
public class BindingDOMDataBrokerAdapter extends AbstractBindingAdapter<@NonNull DOMDataBroker> implements DataBroker {
static final Factory BUILDER_FACTORY = Builder::new;
private final DataTreeChangeService treeChangeService;
public BindingDOMDataBrokerAdapter(final AdapterContext adapterContext, final DOMDataBroker domDataBroker) {
super(adapterContext, domDataBroker);
final var domTreeChange = domDataBroker.extension(DataTreeChangeExtension.class);
treeChangeService = domTreeChange == null ? null
: new BindingDOMDataTreeChangeServiceAdapter(adapterContext, domTreeChange);
}
@Override
public ReadTransaction newReadOnlyTransaction() {
return new BindingDOMReadTransactionAdapter(adapterContext(), getDelegate().newReadOnlyTransaction());
}
@Override
public WriteTransaction newWriteOnlyTransaction() {
return new BindingDOMWriteTransactionAdapter<>(adapterContext(), getDelegate().newWriteOnlyTransaction());
}
@Override
public ReadWriteTransaction newReadWriteTransaction() {
return new BindingDOMReadWriteTransactionAdapter(adapterContext(), getDelegate().newReadWriteTransaction());
}
@Override
public TransactionChain createTransactionChain() {
return new BindingDOMTransactionChainAdapter(getDelegate().createTransactionChain(), adapterContext());
}
@Override
public TransactionChain createMergingTransactionChain() {
return new BindingDOMTransactionChainAdapter(getDelegate().createMergingTransactionChain(), adapterContext());
}
@Override
public Registration registerTreeChangeListener(final LogicalDatastoreType datastore,
final DataObjectReference subtrees, final DataTreeChangeListener listener) {
return getTreeChangeService().registerTreeChangeListener(datastore, subtrees, listener);
}
@Override
@Deprecated(since = "13.0.0", forRemoval = true)
public Registration registerLegacyTreeChangeListener(final LogicalDatastoreType datastore,
final DataObjectReference subtrees, final DataTreeChangeListener listener) {
return getTreeChangeService().registerLegacyTreeChangeListener(datastore, subtrees, listener);
}
private @NonNull DataTreeChangeService getTreeChangeService() {
final var local = treeChangeService;
if (local == null) {
throw new UnsupportedOperationException("Underlying data broker does not expose DOMDataTreeChangeService.");
}
return local;
}
private static class Builder extends BindingDOMAdapterBuilder {
Builder(final AdapterContext adapterContext) {
super(adapterContext);
}
@Override
public Set>> getRequiredDelegates() {
return ImmutableSet.of(DOMDataBroker.class);
}
@Override
protected DataBroker createInstance(final ClassToInstanceMap> delegates) {
return new BindingDOMDataBrokerAdapter(adapterContext(), delegates.getInstance(DOMDataBroker.class));
}
}
}