+++ /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.md.sal.binding.impl;
-
-import java.util.ArrayList;
-import java.util.EnumMap;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map.Entry;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.TimeUnit;
-
-import javax.annotation.Nullable;
-
-import org.opendaylight.controller.md.sal.common.api.TransactionStatus;
-import org.opendaylight.controller.md.sal.common.api.data.AsyncTransaction;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizationException;
-import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizationOperation;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataReadTransaction;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
-import org.opendaylight.yangtools.concepts.Delegator;
-import org.opendaylight.yangtools.yang.binding.DataObject;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.common.RpcResult;
-import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.PathArgument;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.impl.codec.DeserializationException;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import com.google.common.base.Function;
-import com.google.common.base.Optional;
-import com.google.common.cache.Cache;
-import com.google.common.cache.CacheBuilder;
-import com.google.common.util.concurrent.Futures;
-import com.google.common.util.concurrent.ListenableFuture;
-
-public class AbstractForwardedTransaction<T extends AsyncTransaction<org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, NormalizedNode<?, ?>>>
- implements Delegator<T> {
-
- private static final Logger LOG = LoggerFactory.getLogger(AbstractForwardedTransaction.class);
- private final T delegate;
- private final static CacheBuilder<Object, Object> CACHE_BUILDER = CacheBuilder.newBuilder()
- .expireAfterWrite(10, TimeUnit.MILLISECONDS).maximumSize(100);
- private final BindingToNormalizedNodeCodec codec;
- private final EnumMap<LogicalDatastoreType, Cache<InstanceIdentifier<?>, DataObject>> cacheMap;
-
- protected AbstractForwardedTransaction(final T delegate, final BindingToNormalizedNodeCodec codec) {
- super();
- this.delegate = delegate;
- this.codec = codec;
-
- this.cacheMap = new EnumMap<>(LogicalDatastoreType.class);
- cacheMap.put(LogicalDatastoreType.OPERATIONAL, CACHE_BUILDER.<InstanceIdentifier<?>, DataObject> build());
- cacheMap.put(LogicalDatastoreType.CONFIGURATION, CACHE_BUILDER.<InstanceIdentifier<?>, DataObject> build());
-
- }
-
- @Override
- public T getDelegate() {
- return delegate;
- }
-
- protected final BindingToNormalizedNodeCodec getCodec() {
- return codec;
- }
-
- protected ListenableFuture<Optional<DataObject>> transformFuture(final LogicalDatastoreType store,
- final InstanceIdentifier<?> path, final ListenableFuture<Optional<NormalizedNode<?, ?>>> future) {
- return Futures.transform(future, new Function<Optional<NormalizedNode<?, ?>>, Optional<DataObject>>() {
- @Nullable
- @Override
- public Optional<DataObject> apply(@Nullable final Optional<NormalizedNode<?, ?>> normalizedNode) {
- if (normalizedNode.isPresent()) {
- final DataObject dataObject;
- try {
- dataObject = codec.toBinding(path, normalizedNode.get());
- } catch (DeserializationException e) {
- LOG.warn("Failed to create dataobject from node {}", normalizedNode.get(), e);
- throw new IllegalStateException("Failed to create dataobject", e);
- }
-
- if (dataObject != null) {
- updateCache(store, path, dataObject);
- return Optional.of(dataObject);
- }
- }
- return Optional.absent();
- }
- });
- }
-
- protected void doPut(final DOMDataWriteTransaction writeTransaction, final LogicalDatastoreType store,
- final InstanceIdentifier<?> path, final DataObject data) {
- invalidateCache(store, path);
- final Entry<org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, NormalizedNode<?, ?>> normalized = codec
- .toNormalizedNode(path, data);
- writeTransaction.put(store, normalized.getKey(), normalized.getValue());
- }
-
- protected void doPutWithEnsureParents(final DOMDataReadWriteTransaction writeTransaction,
- final LogicalDatastoreType store, final InstanceIdentifier<?> path, final DataObject data) {
- invalidateCache(store, path);
- final Entry<org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, NormalizedNode<?, ?>> normalized = codec
- .toNormalizedNode(path, data);
-
- final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier normalizedPath = normalized.getKey();
- ensureParentsByMerge(writeTransaction, store, normalizedPath, path);
- LOG.debug("Tx: {} : Putting data {}", getDelegate().getIdentifier(), normalizedPath);
- writeTransaction.put(store, normalizedPath, normalized.getValue());
- }
-
- protected void doMergeWithEnsureParents(final DOMDataReadWriteTransaction writeTransaction,
- final LogicalDatastoreType store, final InstanceIdentifier<?> path, final DataObject data) {
- invalidateCache(store, path);
- final Entry<org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, NormalizedNode<?, ?>> normalized = codec
- .toNormalizedNode(path, data);
-
- final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier normalizedPath = normalized.getKey();
- ensureParentsByMerge(writeTransaction, store, normalizedPath, path);
- LOG.debug("Tx: {} : Merge data {}",getDelegate().getIdentifier(),normalizedPath);
- writeTransaction.merge(store, normalizedPath, normalized.getValue());
- }
-
- private void ensureParentsByMerge(final DOMDataReadWriteTransaction writeTransaction,
- final LogicalDatastoreType store,
- final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier normalizedPath,
- final InstanceIdentifier<?> path) {
- List<PathArgument> currentArguments = new ArrayList<>();
- DataNormalizationOperation<?> currentOp = codec.getDataNormalizer().getRootOperation();
- Iterator<PathArgument> iterator = normalizedPath.getPath().iterator();
- while (iterator.hasNext()) {
- PathArgument currentArg = iterator.next();
- try {
- currentOp = currentOp.getChild(currentArg);
- } catch (DataNormalizationException e) {
- throw new IllegalArgumentException(String.format("Invalid child encountered in path %s", path), e);
- }
- currentArguments.add(currentArg);
- org.opendaylight.yangtools.yang.data.api.InstanceIdentifier currentPath = new org.opendaylight.yangtools.yang.data.api.InstanceIdentifier(
- currentArguments);
-
- final Optional<NormalizedNode<?, ?>> d;
- try {
- d = writeTransaction.read(store, currentPath).get();
- } catch (InterruptedException | ExecutionException e) {
- LOG.error("Failed to read pre-existing data from store {} path {}", store, currentPath, e);
- throw new IllegalStateException("Failed to read pre-existing data", e);
- }
-
- if (!d.isPresent() && iterator.hasNext()) {
- writeTransaction.merge(store, currentPath, currentOp.createDefault(currentArg));
- }
- }
- }
-
- protected void doMerge(final DOMDataWriteTransaction writeTransaction, final LogicalDatastoreType store,
- final InstanceIdentifier<?> path, final DataObject data) {
- invalidateCache(store, path);
- final Entry<org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, NormalizedNode<?, ?>> normalized = codec
- .toNormalizedNode(path, data);
- writeTransaction.merge(store, normalized.getKey(), normalized.getValue());
- }
-
- protected void doDelete(final DOMDataWriteTransaction writeTransaction, final LogicalDatastoreType store,
- final InstanceIdentifier<?> path) {
- invalidateCache(store, path);
- final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier normalized = codec.toNormalized(path);
- writeTransaction.delete(store, normalized);
- }
-
- protected ListenableFuture<RpcResult<TransactionStatus>> doCommit(final DOMDataWriteTransaction writeTransaction) {
- return writeTransaction.commit();
- }
-
- protected void doCancel(final DOMDataWriteTransaction writeTransaction) {
- writeTransaction.cancel();
- }
-
- protected ListenableFuture<Optional<DataObject>> doRead(final DOMDataReadTransaction readTransaction,
- final LogicalDatastoreType store, final InstanceIdentifier<?> path) {
- final DataObject dataObject = getFromCache(store, path);
- if (dataObject == null) {
- final ListenableFuture<Optional<NormalizedNode<?, ?>>> future = readTransaction.read(store,
- codec.toNormalized(path));
- return transformFuture(store, path, future);
- } else {
- return Futures.immediateFuture(Optional.of(dataObject));
- }
- }
-
- private DataObject getFromCache(final LogicalDatastoreType store, final InstanceIdentifier<?> path) {
- Cache<InstanceIdentifier<?>, DataObject> cache = cacheMap.get(store);
- if (cache != null) {
- return cache.getIfPresent(path);
- }
- return null;
- }
-
- private void updateCache(final LogicalDatastoreType store, final InstanceIdentifier<?> path,
- final DataObject dataObject) {
- // Check if cache exists. If not create one.
- Cache<InstanceIdentifier<?>, DataObject> cache = cacheMap.get(store);
- if (cache == null) {
- cache = CacheBuilder.newBuilder().maximumSize(1000).expireAfterWrite(1, TimeUnit.MINUTES).build();
-
- }
-
- cache.put(path, dataObject);
- }
-
- private void invalidateCache(final LogicalDatastoreType store, final InstanceIdentifier<?> path) {
- // FIXME: Optimization: invalidate only parents and children of path
- Cache<InstanceIdentifier<?>, DataObject> cache = cacheMap.get(store);
- cache.invalidateAll();
- LOG.trace("Cache invalidated");
- }
-
-}
Code Review / controller.git / blobdiff