2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.controller.md.sal.dom.broker.impl;
10 import com.google.common.base.Preconditions;
11 import com.google.common.collect.ImmutableMap;
12 import java.util.EnumMap;
14 import java.util.Map.Entry;
15 import javax.annotation.concurrent.GuardedBy;
16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
17 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
18 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
19 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
20 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
21 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
22 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionFactory;
23 import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
27 * Abstract composite transaction factory.
29 * Provides an convenience common implementation for composite DOM Transactions,
30 * where subtransaction is identified by {@link LogicalDatastoreType} type and
31 * implementation of subtransaction is provided by
32 * {@link DOMStoreTransactionFactory}.
34 * <b>Note:</b>This class does not have thread-safe implementation of {@link #close()},
35 * implementation may allow accessing and allocating new transactions during closing
39 * Type of {@link DOMStoreTransactionFactory} factory.
41 public abstract class AbstractDOMForwardedTransactionFactory<T extends DOMStoreTransactionFactory> implements DOMDataCommitImplementation, AutoCloseable {
43 private final Map<LogicalDatastoreType, T> storeTxFactories;
45 private boolean closed;
47 protected AbstractDOMForwardedTransactionFactory(final Map<LogicalDatastoreType, ? extends T> txFactories) {
48 this.storeTxFactories = ImmutableMap.copyOf(txFactories);
52 * Implementations must return unique identifier for each and every call of
55 * @return new Unique transaction identifier.
57 protected abstract Object newTransactionIdentifier();
60 * Creates a new composite read-only transaction
62 * Creates a new composite read-only transaction backed by one transaction
63 * per factory in {@link #getTxFactories()}.
65 * Subtransaction for reading is selected by supplied
66 * {@link LogicalDatastoreType} as parameter for
67 * {@link DOMDataReadOnlyTransaction#read(LogicalDatastoreType,org.opendaylight.yangtools.yang.data.api.InstanceIdentifier)}
70 * Id of returned transaction is retrieved via
71 * {@link #newTransactionIdentifier()}.
73 * @return New composite read-only transaction.
75 public DOMDataReadOnlyTransaction newReadOnlyTransaction() {
78 final Map<LogicalDatastoreType, DOMStoreReadTransaction> txns = new EnumMap<>(LogicalDatastoreType.class);
79 for (Entry<LogicalDatastoreType, T> store : storeTxFactories.entrySet()) {
80 txns.put(store.getKey(), store.getValue().newReadOnlyTransaction());
82 return new DOMForwardedReadOnlyTransaction(newTransactionIdentifier(), txns);
88 * Creates a new composite write-only transaction
91 * Creates a new composite write-only transaction backed by one write-only
92 * transaction per factory in {@link #getTxFactories()}.
95 * Implementation of composite Write-only transaction is following:
99 * {@link DOMDataWriteTransaction#put(LogicalDatastoreType, org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode)}
100 * - backing subtransaction is selected by {@link LogicalDatastoreType},
101 * {@link DOMStoreWriteTransaction#write(org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode)}
102 * is invoked on selected subtransaction.
104 * {@link DOMDataWriteTransaction#merge(LogicalDatastoreType, org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode)}
105 * - backing subtransaction is selected by {@link LogicalDatastoreType},
106 * {@link DOMStoreWriteTransaction#merge(org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode)}
107 * is invoked on selected subtransaction.
109 * {@link DOMDataWriteTransaction#delete(LogicalDatastoreType, org.opendaylight.yangtools.yang.data.api.InstanceIdentifier)
110 * - backing subtransaction is selected by {@link LogicalDatastoreType},
111 * {@link DOMStoreWriteTransaction#delete(org.opendaylight.yangtools.yang.data.api.InstanceIdentifier)} is invoked on
112 * selected subtransaction.
113 * <li> {@link DOMDataWriteTransaction#commit()} - results in invoking
114 * {@link DOMStoreWriteTransaction#ready()}, gathering all resulting cohorts
115 * and then invoking finalized implementation callback
116 * {@link #submit(DOMDataWriteTransaction, Iterable)} with transaction which
117 * was commited and gathered results.
120 * Id of returned transaction is generated via
121 * {@link #newTransactionIdentifier()}.
123 * @return New composite write-only transaction associated with this
126 public DOMDataWriteTransaction newWriteOnlyTransaction() {
129 final Map<LogicalDatastoreType, DOMStoreWriteTransaction> txns = new EnumMap<>(LogicalDatastoreType.class);
130 for (Entry<LogicalDatastoreType, T> store : storeTxFactories.entrySet()) {
131 txns.put(store.getKey(), store.getValue().newWriteOnlyTransaction());
133 return new DOMForwardedWriteTransaction<DOMStoreWriteTransaction>(newTransactionIdentifier(), txns, this);
137 * Creates a new composite write-only transaction
140 * Creates a new composite write-only transaction backed by one write-only
141 * transaction per factory in {@link #getTxFactories()}.
143 * Implementation of composite Write-only transaction is following:
147 * {@link DOMDataWriteTransaction#read(LogicalDatastoreType, org.opendaylight.yangtools.yang.data.api.InstanceIdentifier)}
148 * - backing subtransaction is selected by {@link LogicalDatastoreType},
149 * {@link DOMStoreWriteTransaction#read(org.opendaylight.yangtools.yang.data.api.InstanceIdentifier)} is invoked on
150 * selected subtransaction.
152 * {@link DOMDataWriteTransaction#put(LogicalDatastoreType, org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode)}
153 * - backing subtransaction is selected by {@link LogicalDatastoreType},
154 * {@link DOMStoreWriteTransaction#write(org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode)}
155 * is invoked on selected subtransaction.
157 * {@link DOMDataWriteTransaction#merge(LogicalDatastoreType, org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode)}
158 * - backing subtransaction is selected by {@link LogicalDatastoreType},
159 * {@link DOMStoreWriteTransaction#merge(org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode)}
160 * is invoked on selected subtransaction.
162 * {@link DOMDataWriteTransaction#delete(LogicalDatastoreType, org.opendaylight.yangtools.yang.data.api.InstanceIdentifier)
163 * - backing subtransaction is selected by {@link LogicalDatastoreType},
164 * {@link DOMStoreWriteTransaction#delete(org.opendaylight.yangtools.yang.data.api.InstanceIdentifier)} is invoked on
165 * selected subtransaction.
166 * <li> {@link DOMDataWriteTransaction#commit()} - results in invoking
167 * {@link DOMStoreWriteTransaction#ready()}, gathering all resulting cohorts
168 * and then invoking finalized implementation callback
169 * {@link #submit(DOMDataWriteTransaction, Iterable)} with transaction which
170 * was commited and gathered results.
174 * Id of returned transaction is generated via
175 * {@link #newTransactionIdentifier()}.
177 * @return New composite read-write transaction associated with this
181 public DOMDataReadWriteTransaction newReadWriteTransaction() {
184 final Map<LogicalDatastoreType, DOMStoreReadWriteTransaction> txns = new EnumMap<>(LogicalDatastoreType.class);
185 for (Entry<LogicalDatastoreType, T> store : storeTxFactories.entrySet()) {
186 txns.put(store.getKey(), store.getValue().newReadWriteTransaction());
188 return new DOMForwardedReadWriteTransaction(newTransactionIdentifier(), txns, this);
192 * Convenience accessor of backing factories intended to be used only by
193 * finalization of this class.
196 * Finalization of this class may want to access other functionality of
197 * supplied Transaction factories.
199 * @return Map of backing transaction factories.
201 protected final Map<LogicalDatastoreType, T> getTxFactories() {
202 return storeTxFactories;
207 * Checks if instance is not closed.
209 * @throws IllegalStateException If instance of this class was closed.
213 protected synchronized void checkNotClosed() {
214 Preconditions.checkState(!closed,"Transaction factory was closed. No further operations allowed.");
219 public synchronized void close() {