+++ /dev/null
-/**
- * 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.controller.sal.compatibility;
-
-import java.util.Collections;
-import java.util.Map;
-import java.util.Set;
-
-import org.opendaylight.controller.md.sal.binding.api.DataBroker;
-import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
-import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
-import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.yangtools.concepts.ListenerRegistration;
-import org.opendaylight.yangtools.yang.binding.DataObject;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import com.google.common.base.Optional;
-import com.google.common.base.Preconditions;
-
-public abstract class AbstractDataChangeListener <T extends DataObject> implements AutoCloseable,DataChangeListener{
-
- private static final Logger LOG = LoggerFactory.getLogger(AbstractDataChangeListener.class);
- protected InventoryAndReadAdapter adapter;
- protected final Class<T> clazz;
- protected ListenerRegistration<DataChangeListener> listenerRegistration;
-
- public AbstractDataChangeListener(final InventoryAndReadAdapter adapter, DataBroker db, final Class<T> clazz) {
- this.adapter = Preconditions.checkNotNull(adapter, "InventoryAndReadAdapter can not be null!");
- this.clazz = Preconditions.checkNotNull(clazz, "Class can not be null!");
- Preconditions.checkNotNull(db, "DataBroker can not be null!");
- registrationListener(db, 5);
- }
-
- @Override
- public void onDataChanged(AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> changeEvent) {
- Preconditions.checkNotNull(changeEvent,"Async ChangeEvent can not be null!");
- /* All DataObjects for create */
- final Map<InstanceIdentifier<?>, DataObject> createdData = changeEvent.getCreatedData() != null
- ? changeEvent.getCreatedData() : Collections.<InstanceIdentifier<?>, DataObject> emptyMap();
- /* All DataObjects for remove */
- final Set<InstanceIdentifier<?>> removeData = changeEvent.getRemovedPaths() != null
- ? changeEvent.getRemovedPaths() : Collections.<InstanceIdentifier<?>> emptySet();
- /* All DataObjects for updates */
- final Map<InstanceIdentifier<?>, DataObject> updateData = changeEvent.getUpdatedData() != null
- ? changeEvent.getUpdatedData() : Collections.<InstanceIdentifier<?>, DataObject> emptyMap();
- /* All Original DataObjects */
- final Map<InstanceIdentifier<?>, DataObject> originalData = changeEvent.getOriginalData() != null
- ? changeEvent.getOriginalData() : Collections.<InstanceIdentifier<?>, DataObject> emptyMap();
- this.createData(createdData);
- this.updateData(updateData, originalData);
- this.removeData(removeData, originalData);
- }
-
- @SuppressWarnings("unchecked")
- private void createData(final Map<InstanceIdentifier<?>, DataObject> createdData) {
- final Set<InstanceIdentifier<?>> keys = createdData.keySet() != null
- ? createdData.keySet() : Collections.<InstanceIdentifier<?>> emptySet();
- for (InstanceIdentifier<?> key : keys) {
- if (clazz.equals(key.getTargetType())) {
- InstanceIdentifier<T> createKeyIdent = key.firstIdentifierOf(clazz);
- final Optional<DataObject> value = Optional.of(createdData.get(key));
- if (value.isPresent()) {
- this.add(createKeyIdent, (T)value.get());
- }
- }
- }
- }
-
- abstract protected void add(InstanceIdentifier<T> createKeyIdent, T node);
-
- @SuppressWarnings("unchecked")
- private void updateData(final Map<InstanceIdentifier<?>, DataObject> updateData, final Map<InstanceIdentifier<?>, DataObject> originalData) {
-
- final Set<InstanceIdentifier<?>> keys = updateData.keySet() != null
- ? updateData.keySet() : Collections.<InstanceIdentifier<?>> emptySet();
- for (InstanceIdentifier<?> key : keys) {
- if (clazz.equals(key.getTargetType())) {
- InstanceIdentifier<T> updateKeyIdent = key.firstIdentifierOf(clazz);
- final Optional<DataObject> value = Optional.of(updateData.get(key));
- final Optional<DataObject> original = Optional.of(originalData.get(key));
- if (value.isPresent() && original.isPresent()) {
- this.update(updateKeyIdent, (T)original.get(), (T)value.get());
- }
- }
- }
- }
-
- abstract protected void update(InstanceIdentifier<T> updateKeyIdent, T node,
- T node2);
-
- @SuppressWarnings("unchecked")
- private void removeData(final Set<InstanceIdentifier<?>> removeData, final Map<InstanceIdentifier<?>, DataObject> originalData) {
-
- for (InstanceIdentifier<?> key : removeData) {
- if (clazz.equals(key.getTargetType())) {
- final InstanceIdentifier<T> ident = key.firstIdentifierOf(clazz);
- final DataObject removeValue = originalData.get(key);
- this.remove(ident, (T)removeValue);
- }
- }
- }
-
- abstract protected void remove(InstanceIdentifier<T> ident, T removeValue);
-
- protected void registrationListener(final DataBroker db, int i) {
- try {
- listenerRegistration = db.registerDataChangeListener(LogicalDatastoreType.OPERATIONAL,
- getWildCardPath(), this, DataChangeScope.BASE);
- } catch (final Exception e) {
- if (i >= 1) {
- try {
- Thread.sleep(100);
- } catch (InterruptedException e1) {
- LOG.error("Thread interrupted '{}'", e1);
- Thread.currentThread().interrupt();
- }
- registrationListener(db, --i);
- } else {
- LOG.error("AbstractDataChangeListener registration fail!", e);
- throw new IllegalStateException("AbstractDataChangeListener registration Listener fail! System needs restart.", e);
- }
- }
- }
-
- protected abstract InstanceIdentifier<?> getWildCardPath();
-
- @Override
- public void close() {
- if (listenerRegistration != null) {
- try {
- listenerRegistration.close();
- } catch (final Exception e) {
- LOG.error("Error by stop AbstractDataChangeListener.", e);
- }
- listenerRegistration = null;
- }
- }
-}
\ No newline at end of file
Code Review / controller.git / blobdiff