Do not allow multi-datastore transactions

[mdsal.git] / dom / mdsal-dom-broker / src / main / java / org / opendaylight / mdsal / dom / broker / AbstractDOMForwardedCompositeTransaction.java

diff --git a/dom/mdsal-dom-broker/src/main/java/org/opendaylight/mdsal/dom/broker/AbstractDOMForwardedCompositeTransaction.java b/dom/mdsal-dom-broker/src/main/java/org/opendaylight/mdsal/dom/broker/AbstractDOMForwardedCompositeTransaction.java
deleted file mode 100644 (file)
index 83d3d3c..0000000
--- a/dom/mdsal-dom-broker/src/main/java/org/opendaylight/mdsal/dom/broker/AbstractDOMForwardedCompositeTransaction.java
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * 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.mdsal.dom.broker;
-
-import static com.google.common.base.Preconditions.checkArgument;
-import static java.util.Objects.requireNonNull;
-
-import java.util.Collection;
-import java.util.Map;
-import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
-import org.opendaylight.mdsal.dom.api.DOMDataTreeTransaction;
-import org.opendaylight.mdsal.dom.spi.store.DOMStoreTransaction;
-
-/**
- * Composite DOM Transaction backed by {@link DOMStoreTransaction}.
- *
- *<p>
- * Abstract base for composite transaction, which provides access only to common
- * functionality as retrieval of subtransaction, close method and retrieval of
- * identifier.
- *
- * @param <T> Subtransaction type
- */
-abstract class AbstractDOMForwardedCompositeTransaction<T extends DOMStoreTransaction>
-        implements DOMDataTreeTransaction {
-    private final Map<LogicalDatastoreType, T> backingTxs;
-    private final Object identifier;
-
-    /**
-     * Creates new composite Transactions.
-     *
-     * @param identifier
-     *            Identifier of transaction.
-     * @param backingTxs
-     *            Key,value map of backing transactions.
-     */
-    protected AbstractDOMForwardedCompositeTransaction(final Object identifier,
-            final Map<LogicalDatastoreType, T> backingTxs) {
-        this.identifier = requireNonNull(identifier, "Identifier should not be null");
-        this.backingTxs = requireNonNull(backingTxs, "Backing transactions should not be null");
-    }
-
-    /**
-     * Returns subtransaction associated with supplied key.
-     *
-     * @param key is used to retrieve subtransaction object
-     * @return the subtransaction object
-     * @throws NullPointerException
-     *             if key is null
-     * @throws IllegalArgumentException
-     *             if no subtransaction is associated with key.
-     */
-    protected final T getSubtransaction(final LogicalDatastoreType key) {
-        requireNonNull(key, "key must not be null.");
-
-        final T ret = backingTxs.get(key);
-        checkArgument(ret != null, "No subtransaction associated with %s", key);
-        return ret;
-    }
-
-    /**
-     * Returns immutable Iterable of all subtransactions.
-     *
-     */
-    protected Collection<T> getSubtransactions() {
-        return backingTxs.values();
-    }
-
-    @Override
-    public Object getIdentifier() {
-        return identifier;
-    }
-
-    @SuppressWarnings("checkstyle:IllegalCatch")
-    protected void closeSubtransactions() {
-        /*
-         * We share one exception for all failures, which are added
-         * as supressedExceptions to it.
-         */
-        IllegalStateException failure = null;
-        for (T subtransaction : backingTxs.values()) {
-            try {
-                subtransaction.close();
-            } catch (Exception e) {
-                // If we did not allocate failure we allocate it
-                if (failure == null) {
-                    failure = new IllegalStateException("Uncaught exception occurred during closing transaction", e);
-                } else {
-                    // We update it with additional exceptions, which occurred during error.
-                    failure.addSuppressed(e);
-                }
-            }
-        }
-        // If we have failure, we throw it at after all attempts to close.
-        if (failure != null) {
-            throw failure;
-        }
-    }
-}