X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-distributed-datastore%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatabroker%2FAbstractDOMBrokerWriteTransaction.java;h=39703f0f67b9168d5d400c223b0f59fe939ad50f;hp=5058fbe75f5a53b4f13d7a15632dc7d93d26889d;hb=HEAD;hpb=18991f44b807ab6f06fcec76216b7f70b900b0f4

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/AbstractDOMBrokerWriteTransaction.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/AbstractDOMBrokerWriteTransaction.java
deleted file mode 100644
index 5058fbe75f..0000000000
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/AbstractDOMBrokerWriteTransaction.java
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
- * Copyright (c) 2015 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.cluster.databroker;
-
-import static com.google.common.base.Preconditions.checkArgument;
-import static com.google.common.base.Preconditions.checkState;
-import static java.util.Objects.requireNonNull;
-import static org.opendaylight.yangtools.util.concurrent.FluentFutures.immediateFailedFluentFuture;
-
-import com.google.common.base.MoreObjects.ToStringHelper;
-import com.google.common.util.concurrent.FluentFuture;
-import com.google.common.util.concurrent.Futures;
-import java.util.Map;
-import java.util.concurrent.Future;
-import java.util.concurrent.atomic.AtomicReferenceFieldUpdater;
-import org.opendaylight.mdsal.common.api.CommitInfo;
-import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
-import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteTransaction;
-import org.opendaylight.mdsal.dom.broker.TransactionCommitFailedExceptionMapper;
-import org.opendaylight.mdsal.dom.spi.store.DOMStoreTransactionFactory;
-import org.opendaylight.mdsal.dom.spi.store.DOMStoreWriteTransaction;
-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.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public abstract class AbstractDOMBrokerWriteTransaction<T extends DOMStoreWriteTransaction>
-        extends AbstractDOMBrokerTransaction<T> implements DOMDataTreeWriteTransaction {
-
-    @SuppressWarnings("rawtypes")
-    private static final AtomicReferenceFieldUpdater<AbstractDOMBrokerWriteTransaction, AbstractDOMTransactionFactory>
-            IMPL_UPDATER = AtomicReferenceFieldUpdater.newUpdater(AbstractDOMBrokerWriteTransaction.class,
-                    AbstractDOMTransactionFactory.class, "commitImpl");
-    @SuppressWarnings("rawtypes")
-    private static final AtomicReferenceFieldUpdater<AbstractDOMBrokerWriteTransaction, Future> FUTURE_UPDATER =
-            AtomicReferenceFieldUpdater.newUpdater(AbstractDOMBrokerWriteTransaction.class, Future.class,
-                    "commitFuture");
-    private static final Logger LOG = LoggerFactory.getLogger(AbstractDOMBrokerWriteTransaction.class);
-    private static final Future<?> CANCELLED_FUTURE = Futures.immediateCancelledFuture();
-
-    /**
-     * Implementation of real commit. It also acts as an indication that
-     * the transaction is running -- which we flip atomically using
-     * {@link #IMPL_UPDATER}.
-     */
-    private volatile AbstractDOMTransactionFactory<?> commitImpl;
-
-    /**
-     * Future task of transaction commit. It starts off as null, but is
-     * set appropriately on {@link #submit()} and {@link #cancel()} via
-     * {@link AtomicReferenceFieldUpdater#lazySet(Object, Object)}.
-     * <p/>
-     * Lazy set is safe for use because it is only referenced to in the
-     * {@link #cancel()} slow path, where we will busy-wait for it. The
-     * fast path gets the benefit of a store-store barrier instead of the
-     * usual store-load barrier.
-     */
-    private volatile Future<?> commitFuture;
-
-    protected AbstractDOMBrokerWriteTransaction(final Object identifier,
-            final Map<LogicalDatastoreType, ? extends DOMStoreTransactionFactory> storeTxFactories,
-            final AbstractDOMTransactionFactory<?> commitImpl) {
-        super(identifier, storeTxFactories);
-        this.commitImpl = requireNonNull(commitImpl, "commitImpl must not be null.");
-    }
-
-    @Override
-    public void put(final LogicalDatastoreType store, final YangInstanceIdentifier path, final NormalizedNode data) {
-        checkRunning(commitImpl);
-        checkInstanceIdentifierReferencesData(path,data);
-        getSubtransaction(store).write(path, data);
-    }
-
-    private static void checkInstanceIdentifierReferencesData(final YangInstanceIdentifier path,
-            final NormalizedNode data) {
-        checkArgument(data != null, "Attempted to store null data at %s", path);
-        final PathArgument lastArg = path.getLastPathArgument();
-        if (lastArg != null) {
-            checkArgument(lastArg.equals(data.getIdentifier()),
-                "Instance identifier references %s but data identifier is %s", lastArg, data);
-        }
-    }
-
-    @Override
-    public void delete(final LogicalDatastoreType store, final YangInstanceIdentifier path) {
-        checkRunning(commitImpl);
-        getSubtransaction(store).delete(path);
-    }
-
-    @Override
-    public void merge(final LogicalDatastoreType store, final YangInstanceIdentifier path, final NormalizedNode data) {
-        checkRunning(commitImpl);
-        checkInstanceIdentifierReferencesData(path, data);
-        getSubtransaction(store).merge(path, data);
-    }
-
-    @Override
-    public boolean cancel() {
-        final AbstractDOMTransactionFactory<?> impl = IMPL_UPDATER.getAndSet(this, null);
-        if (impl != null) {
-            LOG.trace("Transaction {} cancelled before submit", getIdentifier());
-            FUTURE_UPDATER.lazySet(this, CANCELLED_FUTURE);
-            closeSubtransaction();
-            return true;
-        }
-
-        // The transaction is in process of being submitted or cancelled. Busy-wait
-        // for the corresponding future.
-        Future<?> future;
-        do {
-            future = commitFuture;
-        }
-        while (future == null);
-
-        return future.cancel(false);
-    }
-
-    @Override
-    @SuppressWarnings("checkstyle:IllegalCatch")
-    public FluentFuture<? extends CommitInfo> commit() {
-        final AbstractDOMTransactionFactory<?> impl = IMPL_UPDATER.getAndSet(this, null);
-        checkRunning(impl);
-
-        FluentFuture<? extends CommitInfo> ret;
-        final var tx = getSubtransaction();
-        if (tx == null) {
-            ret = CommitInfo.emptyFluentFuture();
-        } else {
-            try {
-                ret = impl.commit(this, tx.ready());
-            } catch (RuntimeException e) {
-                ret = immediateFailedFluentFuture(TransactionCommitFailedExceptionMapper.COMMIT_ERROR_MAPPER.apply(e));
-            }
-        }
-
-        FUTURE_UPDATER.lazySet(this, ret);
-        return ret;
-    }
-
-    private void checkRunning(final AbstractDOMTransactionFactory<?> impl) {
-        checkState(impl != null, "Transaction %s is no longer running", getIdentifier());
-    }
-
-    @Override
-    protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
-        return super.addToStringAttributes(toStringHelper).add("running", commitImpl == null);
-    }
-}