X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-distributed-datastore%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatastore%2Futils%2FPruningDataTreeModification.java;h=029b5f1c6a38dc8f9f6685d6556fc47a4f19fc09;hb=refs%2Fchanges%2F02%2F99502%2F13;hp=0e9726373aadcaf71d0cbd2c691f02cccb97d89f;hpb=561058be77594a026abbdbe82616fc65c7f58f48;p=controller.git diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/utils/PruningDataTreeModification.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/utils/PruningDataTreeModification.java index 0e9726373a..029b5f1c6a 100644 --- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/utils/PruningDataTreeModification.java +++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/utils/PruningDataTreeModification.java @@ -5,106 +5,157 @@ * 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.cluster.datastore.utils; +import static java.util.Objects.requireNonNull; + import com.google.common.annotations.VisibleForTesting; -import com.google.common.base.Optional; -import com.google.common.base.Preconditions; +import com.google.common.collect.ForwardingObject; import java.io.IOException; -import java.util.ArrayDeque; -import java.util.Deque; -import javax.annotation.Nonnull; -import org.opendaylight.controller.cluster.datastore.node.utils.transformer.NormalizedNodePruner; +import java.util.Optional; +import org.opendaylight.controller.cluster.datastore.node.utils.transformer.ReusableNormalizedNodePruner; +import org.opendaylight.controller.cluster.datastore.util.AbstractDataTreeModificationCursor; import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier; import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument; import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode; import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeWriter; -import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree; -import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification; -import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModificationCursor; -import org.opendaylight.yangtools.yang.data.impl.schema.tree.SchemaValidationFailedException; -import org.opendaylight.yangtools.yang.model.api.SchemaContext; +import org.opendaylight.yangtools.yang.data.tree.api.DataTree; +import org.opendaylight.yangtools.yang.data.tree.api.DataTreeModification; +import org.opendaylight.yangtools.yang.data.tree.api.DataTreeModificationCursor; +import org.opendaylight.yangtools.yang.data.tree.api.SchemaValidationFailedException; +import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * The PruningDataTreeModification first removes all entries from the data which do not belong in the schemaContext - * before delegating it to the actual DataTreeModification + * before delegating it to the actual DataTreeModification. */ -public class PruningDataTreeModification implements DataTreeModification { +public abstract class PruningDataTreeModification extends ForwardingObject implements DataTreeModification { + /** + * A PruningDataTreeModification which always performs pruning before attempting an operation. This sacrifices + * performance to ensure all data has passed through the pruner -- such that data adaptations are performed. + */ + public static final class Proactive extends PruningDataTreeModification { + public Proactive(final DataTreeModification delegate, final DataTree dataTree, + final ReusableNormalizedNodePruner pruner) { + super(delegate, dataTree, pruner); + } - private static final Logger LOG = LoggerFactory.getLogger(PruningDataTreeModification.class); - private DataTreeModification delegate; - private final SchemaContext schemaContext; - private final DataTree dataTree; + @Override + public void merge(final YangInstanceIdentifier path, final NormalizedNode data) { + pruneAndMergeNode(path, data); + } - public PruningDataTreeModification(DataTreeModification delegate, DataTree dataTree, SchemaContext schemaContext) { - this.delegate = delegate; - this.dataTree = dataTree; - this.schemaContext = schemaContext; - } + @Override + public void write(final YangInstanceIdentifier path, final NormalizedNode data) { + pruneAndWriteNode(path, data); + } - @Override - public void delete(YangInstanceIdentifier yangInstanceIdentifier) { - try { - delegate.delete(yangInstanceIdentifier); - } catch(SchemaValidationFailedException e){ - LOG.warn("Node at path : {} does not exist ignoring delete", yangInstanceIdentifier); + @Override + PruningDataTreeModification createNew(final DataTreeModification delegate, final DataTree dataTree, + final ReusableNormalizedNodePruner pruner) { + return new Proactive(delegate, dataTree, pruner); } } - @Override - public void merge(YangInstanceIdentifier yangInstanceIdentifier, NormalizedNode normalizedNode) { - try { - if(YangInstanceIdentifier.EMPTY.equals(yangInstanceIdentifier)){ - pruneAndMergeNode(yangInstanceIdentifier, normalizedNode); - } else { - delegate.merge(yangInstanceIdentifier, normalizedNode); + /** + * A PruningDataTreeModification which performs pruning only when an operation results in an + * {@link SchemaValidationFailedException}. This offers superior performance in the normal case of not needing + * pruning. + */ + public static final class Reactive extends PruningDataTreeModification { + public Reactive(final DataTreeModification delegate, final DataTree dataTree, + final ReusableNormalizedNodePruner pruner) { + super(delegate, dataTree, pruner); + } + + @Override + public void merge(final YangInstanceIdentifier path, final NormalizedNode data) { + if (path.isEmpty()) { + pruneAndMergeNode(path, data); + return; } - } catch (SchemaValidationFailedException e){ - LOG.warn("Node at path {} was pruned during merge due to validation error: {}", - yangInstanceIdentifier, e.getMessage()); - pruneAndMergeNode(yangInstanceIdentifier, normalizedNode); + try { + delegate().merge(path, data); + } catch (SchemaValidationFailedException e) { + LOG.warn("Node at path {} was pruned during merge due to validation error: {}", path, e.getMessage()); + pruneAndMergeNode(path, data); + } } - } + @Override + public void write(final YangInstanceIdentifier path, final NormalizedNode data) { + if (path.isEmpty()) { + pruneAndWriteNode(path, data); + return; + } - private void pruneAndMergeNode(YangInstanceIdentifier yangInstanceIdentifier, NormalizedNode normalizedNode) { - NormalizedNode pruned = pruneNormalizedNode(yangInstanceIdentifier, normalizedNode); + try { + delegate().write(path, data); + } catch (SchemaValidationFailedException e) { + LOG.warn("Node at path : {} was pruned during write due to validation error: {}", path, e.getMessage()); + pruneAndWriteNode(path, data); + } + } - if(pruned != null) { - delegate.merge(yangInstanceIdentifier, pruned); + @Override + PruningDataTreeModification createNew(final DataTreeModification delegate, final DataTree dataTree, + final ReusableNormalizedNodePruner pruner) { + return new Reactive(delegate, dataTree, pruner); } } + private static final Logger LOG = LoggerFactory.getLogger(PruningDataTreeModification.class); + + private final ReusableNormalizedNodePruner pruner; + private final DataTree dataTree; + + private DataTreeModification delegate; + + PruningDataTreeModification(final DataTreeModification delegate, final DataTree dataTree, + final ReusableNormalizedNodePruner pruner) { + this.delegate = requireNonNull(delegate); + this.dataTree = requireNonNull(dataTree); + this.pruner = requireNonNull(pruner); + } + @Override - public void write(YangInstanceIdentifier yangInstanceIdentifier, NormalizedNode normalizedNode) { - try { - if(YangInstanceIdentifier.EMPTY.equals(yangInstanceIdentifier)){ - pruneAndWriteNode(yangInstanceIdentifier, normalizedNode); - } else { - delegate.write(yangInstanceIdentifier, normalizedNode); - } - } catch (SchemaValidationFailedException e){ - LOG.warn("Node at path : {} was pruned during write due to validation error: {}", - yangInstanceIdentifier, e.getMessage()); + protected final DataTreeModification delegate() { + return delegate; + } + + @Override + public final EffectiveModelContext getEffectiveModelContext() { + return delegate.getEffectiveModelContext(); + } - pruneAndWriteNode(yangInstanceIdentifier, normalizedNode); + @Override + public final void delete(final YangInstanceIdentifier path) { + try { + delegate.delete(path); + } catch (SchemaValidationFailedException e) { + LOG.warn("Node at path : {} does not exist ignoring delete", path); } } - private void pruneAndWriteNode(YangInstanceIdentifier yangInstanceIdentifier, NormalizedNode normalizedNode) { - NormalizedNode pruned = pruneNormalizedNode(yangInstanceIdentifier, normalizedNode); + final void pruneAndMergeNode(final YangInstanceIdentifier path, final NormalizedNode data) { + final NormalizedNode pruned = pruneNormalizedNode(path, data); + if (pruned != null) { + delegate.merge(path, pruned); + } + } - if(pruned != null) { - delegate.write(yangInstanceIdentifier, pruned); + final void pruneAndWriteNode(final YangInstanceIdentifier path, final NormalizedNode data) { + final NormalizedNode pruned = pruneNormalizedNode(path, data); + if (pruned != null) { + delegate.write(path, pruned); } } @Override - public void ready() { + public final void ready() { try { delegate.ready(); } catch (SchemaValidationFailedException e) { @@ -117,114 +168,71 @@ public class PruningDataTreeModification implements DataTreeModification { } @Override - public void applyToCursor(DataTreeModificationCursor dataTreeModificationCursor) { + public final void applyToCursor(final DataTreeModificationCursor dataTreeModificationCursor) { delegate.applyToCursor(dataTreeModificationCursor); } @Override - public Optional> readNode(YangInstanceIdentifier yangInstanceIdentifier) { + public final Optional readNode(final YangInstanceIdentifier yangInstanceIdentifier) { return delegate.readNode(yangInstanceIdentifier); } @Override - public DataTreeModification newModification() { - return new PruningDataTreeModification(delegate.newModification(), dataTree, schemaContext); + public final DataTreeModification newModification() { + return createNew(delegate.newModification(), dataTree, pruner.duplicate()); } @VisibleForTesting - NormalizedNode pruneNormalizedNode(YangInstanceIdentifier path, NormalizedNode input) { - NormalizedNodePruner pruner = new NormalizedNodePruner(path, schemaContext); + final NormalizedNode pruneNormalizedNode(final YangInstanceIdentifier path, final NormalizedNode input) { + pruner.initializeForPath(path); try { NormalizedNodeWriter.forStreamWriter(pruner).write(input); } catch (IOException ioe) { LOG.error("Unexpected IOException when pruning normalizedNode", ioe); + return null; } - return pruner.normalizedNode(); + return pruner.getResult().orElse(null); } - public DataTreeModification getResultingModification(){ - return delegate; - } + abstract PruningDataTreeModification createNew(DataTreeModification delegate, DataTree dataTree, + ReusableNormalizedNodePruner pruner); - private static class PruningDataTreeModificationCursor implements DataTreeModificationCursor { - private final Deque stack = new ArrayDeque<>(); + private static final class PruningDataTreeModificationCursor extends AbstractDataTreeModificationCursor { private final DataTreeModification toModification; private final PruningDataTreeModification pruningModification; - PruningDataTreeModificationCursor(DataTreeModification toModification, - PruningDataTreeModification pruningModification) { + PruningDataTreeModificationCursor(final DataTreeModification toModification, + final PruningDataTreeModification pruningModification) { this.toModification = toModification; this.pruningModification = pruningModification; - stack.push(YangInstanceIdentifier.EMPTY); } @Override - public void write(PathArgument child, NormalizedNode data) { - YangInstanceIdentifier path = stack.peek().node(child); - NormalizedNode prunedNode = pruningModification.pruneNormalizedNode(path, data); - if(prunedNode != null) { + public void write(final PathArgument child, final NormalizedNode data) { + final YangInstanceIdentifier path = current().node(child); + final NormalizedNode prunedNode = pruningModification.pruneNormalizedNode(path, data); + if (prunedNode != null) { toModification.write(path, prunedNode); } } @Override - public void merge(PathArgument child, NormalizedNode data) { - YangInstanceIdentifier path = stack.peek().node(child); - NormalizedNode prunedNode = pruningModification.pruneNormalizedNode(path, data); - if(prunedNode != null) { + public void merge(final PathArgument child, final NormalizedNode data) { + final YangInstanceIdentifier path = current().node(child); + final NormalizedNode prunedNode = pruningModification.pruneNormalizedNode(path, data); + if (prunedNode != null) { toModification.merge(path, prunedNode); } } @Override - public void delete(PathArgument child) { + public void delete(final PathArgument child) { try { - toModification.delete(stack.peek().node(child)); - } catch(SchemaValidationFailedException e) { + toModification.delete(current().node(child)); + } catch (SchemaValidationFailedException e) { // Ignoring since we would've already logged this in the call to the original modification. } } - - @Override - public void enter(@Nonnull final PathArgument child) { - stack.push(stack.peek().node(child)); - } - - @Override - public void enter(@Nonnull final PathArgument... path) { - for (PathArgument arg : path) { - enter(arg); - } - } - - @Override - public void enter(@Nonnull final Iterable path) { - for (PathArgument arg : path) { - enter(arg); - } - } - - @Override - public void exit() { - stack.pop(); - } - - @Override - public void exit(final int depth) { - Preconditions.checkArgument(depth < stack.size(), "Stack holds only %s elements, cannot exit %s levels", stack.size(), depth); - for (int i = 0; i < depth; ++i) { - stack.pop(); - } - } - - @Override - public Optional> readNode(@Nonnull final PathArgument child) { - throw new UnsupportedOperationException("Not implemented"); - } - - @Override - public void close() { - } } }