+++ /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.dom.store.impl;
-
-import static com.google.common.base.Preconditions.checkState;
-
-import org.opendaylight.controller.md.sal.dom.store.impl.tree.DataTreeModification;
-import org.opendaylight.controller.md.sal.dom.store.impl.tree.DataTreeSnapshot;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
-import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import com.google.common.base.Objects.ToStringHelper;
-import com.google.common.base.Preconditions;
-import com.google.common.base.Throwables;
-
-/**
- * Implementation of Write transaction which is backed by
- * {@link DataTreeSnapshot} and executed according to
- * {@link TransactionReadyPrototype}.
- *
- */
-class SnapshotBackedWriteTransaction extends AbstractDOMStoreTransaction implements DOMStoreWriteTransaction {
-
- private static final Logger LOG = LoggerFactory.getLogger(SnapshotBackedWriteTransaction.class);
- private DataTreeModification mutableTree;
- private boolean ready = false;
- private TransactionReadyPrototype readyImpl;
-
- /**
- * Creates new write-only transaction.
- *
- * @param identifier
- * transaction Identifier
- * @param snapshot
- * Snapshot which will be modified.
- * @param readyImpl
- * Implementation of ready method.
- */
- public SnapshotBackedWriteTransaction(final Object identifier, final DataTreeSnapshot snapshot,
- final TransactionReadyPrototype readyImpl) {
- super(identifier);
- mutableTree = snapshot.newModification();
- this.readyImpl = Preconditions.checkNotNull(readyImpl, "readyImpl must not be null.");
- LOG.debug("Write Tx: {} allocated with snapshot {}", identifier, snapshot);
- }
-
- @Override
- public void close() {
- LOG.debug("Store transaction: {} : Closed", getIdentifier());
- this.mutableTree = null;
- this.readyImpl = null;
- }
-
- @Override
- public void write(final InstanceIdentifier path, final NormalizedNode<?, ?> data) {
- checkNotReady();
- try {
- LOG.debug("Tx: {} Write: {}:{}", getIdentifier(), path, data);
- mutableTree.write(path, data);
- // FIXME: Add checked exception
- } catch (Exception e) {
- LOG.error("Tx: {}, failed to write {}:{} in {}", getIdentifier(), path, data, mutableTree, e);
- // Rethrow original ones if they are subclasses of RuntimeException
- // or Error
- Throwables.propagateIfPossible(e);
- // FIXME: Introduce proper checked exception
- throw new IllegalArgumentException("Illegal input data.", e);
- }
- }
-
- @Override
- public void merge(final InstanceIdentifier path, final NormalizedNode<?, ?> data) {
- checkNotReady();
- try {
- LOG.debug("Tx: {} Merge: {}:{}", getIdentifier(), path, data);
- mutableTree.merge(path, data);
- // FIXME: Add checked exception
- } catch (Exception e) {
- LOG.error("Tx: {}, failed to write {}:{} in {}", getIdentifier(), path, data, mutableTree, e);
- // Rethrow original ones if they are subclasses of RuntimeException
- // or Error
- Throwables.propagateIfPossible(e);
- // FIXME: Introduce proper checked exception
- throw new IllegalArgumentException("Illegal input data.", e);
- }
- }
-
- @Override
- public void delete(final InstanceIdentifier path) {
- checkNotReady();
- try {
- LOG.debug("Tx: {} Delete: {}", getIdentifier(), path);
- mutableTree.delete(path);
- // FIXME: Add checked exception
- } catch (Exception e) {
- LOG.error("Tx: {}, failed to delete {} in {}", getIdentifier(), path, mutableTree, e);
- // Rethrow original ones if they are subclasses of RuntimeException
- // or Error
- Throwables.propagateIfPossible(e);
- // FIXME: Introduce proper checked exception
- throw new IllegalArgumentException("Illegal path to delete.", e);
- }
- }
-
- protected final boolean isReady() {
- return ready;
- }
-
- protected final void checkNotReady() {
- checkState(!ready, "Transaction %s is ready. No further modifications allowed.", getIdentifier());
- }
-
- @Override
- public synchronized DOMStoreThreePhaseCommitCohort ready() {
- checkState(!ready, "Transaction %s is already ready.", getIdentifier());
- ready = true;
- LOG.debug("Store transaction: {} : Ready", getIdentifier());
- mutableTree.ready();
- return readyImpl.ready(this);
- }
-
- protected DataTreeModification getMutatedView() {
- return mutableTree;
- }
-
- @Override
- protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
- return toStringHelper.add("ready", isReady());
- }
-
- /**
- * Prototype implementation of
- * {@link #ready(SnapshotBackedWriteTransaction)}
- *
- * This class is intended to be implemented by Transaction factories
- * responsible for allocation of {@link SnapshotBackedWriteTransaction} and
- * providing underlying logic for applying implementation.
- *
- */
- public static interface TransactionReadyPrototype {
-
- /**
- * Returns a commit coordinator associated with supplied transactions.
- *
- * This call must not fail.
- *
- * @param tx
- * Transaction on which ready was invoked.
- * @return DOMStoreThreePhaseCommitCohort associated with transaction
- */
- DOMStoreThreePhaseCommitCohort ready(SnapshotBackedWriteTransaction tx);
- }
-}
\ No newline at end of file
Code Review / controller.git / blobdiff