2 * Copyright (c) 2015 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
9 package org.opendaylight.controller.netconf.confignetconfconnector.transactions;
11 import com.google.common.base.Optional;
12 import com.google.common.base.Preconditions;
13 import java.util.ArrayList;
14 import java.util.Collections;
15 import java.util.List;
17 import javax.management.InstanceNotFoundException;
18 import javax.management.ObjectName;
19 import org.opendaylight.controller.config.api.ConflictingVersionException;
20 import org.opendaylight.controller.config.api.ValidationException;
21 import org.opendaylight.controller.config.api.jmx.CommitStatus;
22 import org.opendaylight.controller.config.util.ConfigRegistryClient;
23 import org.opendaylight.controller.config.util.ConfigTransactionClient;
24 import org.slf4j.Logger;
25 import org.slf4j.LoggerFactory;
27 public class TransactionProvider implements AutoCloseable {
28 private static final Logger LOG = LoggerFactory.getLogger(TransactionProvider.class);
30 private final ConfigRegistryClient configRegistryClient;
32 private final String netconfSessionIdForReporting;
33 private ObjectName candidateTx;
34 private ObjectName readTx;
35 private final List<ObjectName> allOpenedTransactions = new ArrayList<>();
36 private static final String NO_TRANSACTION_FOUND_FOR_SESSION = "No transaction found for session ";
38 public TransactionProvider(ConfigRegistryClient configRegistryClient, String netconfSessionIdForReporting) {
39 this.configRegistryClient = configRegistryClient;
40 this.netconfSessionIdForReporting = netconfSessionIdForReporting;
44 public synchronized void close() {
45 for (ObjectName tx : allOpenedTransactions) {
47 if (isStillOpenTransaction(tx)) {
48 configRegistryClient.getConfigTransactionClient(tx).abortConfig();
50 } catch (Exception e) {
51 LOG.debug("Ignoring exception while closing transaction {}", tx, e);
54 allOpenedTransactions.clear();
57 public synchronized Optional<ObjectName> getTransaction() {
59 if (candidateTx == null){
60 return Optional.absent();
63 // Transaction was already closed somehow
64 if (!isStillOpenTransaction(candidateTx)) {
65 LOG.warn("Fixing illegal state: transaction {} was closed in {}", candidateTx,
66 netconfSessionIdForReporting);
68 return Optional.absent();
70 return Optional.of(candidateTx);
73 public synchronized Optional<ObjectName> getReadTransaction() {
76 return Optional.absent();
79 // Transaction was already closed somehow
80 if (!isStillOpenTransaction(readTx)) {
81 LOG.warn("Fixing illegal state: transaction {} was closed in {}", readTx,
82 netconfSessionIdForReporting);
84 return Optional.absent();
86 return Optional.of(readTx);
89 private boolean isStillOpenTransaction(ObjectName transaction) {
90 return configRegistryClient.getOpenConfigs().contains(transaction);
93 public synchronized ObjectName getOrCreateTransaction() {
94 Optional<ObjectName> ta = getTransaction();
99 candidateTx = configRegistryClient.beginConfig();
100 allOpenedTransactions.add(candidateTx);
104 public synchronized ObjectName getOrCreateReadTransaction() {
105 Optional<ObjectName> ta = getReadTransaction();
107 if (ta.isPresent()) {
110 readTx = configRegistryClient.beginConfig();
111 allOpenedTransactions.add(readTx);
116 * Used for editConfig test option
118 public synchronized ObjectName getTestTransaction() {
119 ObjectName testTx = configRegistryClient.beginConfig();
120 allOpenedTransactions.add(testTx);
125 * Commit and notification send must be atomic
127 public CommitStatus commitTransaction() throws ValidationException, ConflictingVersionException {
128 return commitTransaction(configRegistryClient);
132 * Commit and notification send must be atomic
133 * @param configRegistryClient
135 public synchronized CommitStatus commitTransaction(final ConfigRegistryClient configRegistryClient) throws ValidationException, ConflictingVersionException {
136 if (!getTransaction().isPresent()){
137 //making empty commit without prior opened transaction, just return commit status with empty lists
138 LOG.debug("Making commit without open candidate transaction for session {}", netconfSessionIdForReporting);
139 return new CommitStatus(Collections.EMPTY_LIST, Collections.EMPTY_LIST, Collections.EMPTY_LIST);
141 final Optional<ObjectName> maybeTaON = getTransaction();
142 ObjectName taON = maybeTaON.get();
144 CommitStatus status = configRegistryClient.commitConfig(taON);
146 allOpenedTransactions.remove(candidateTx);
149 } catch (ValidationException validationException) {
150 // no clean up: user can reconfigure and recover this transaction
151 LOG.warn("Transaction {} failed on {}", taON, validationException.toString());
152 throw validationException;
153 } catch (ConflictingVersionException e) {
154 LOG.error("Exception while commit of {}, aborting transaction", taON, e);
161 public synchronized void abortTransaction() {
162 LOG.debug("Aborting current transaction");
163 Optional<ObjectName> taON = getTransaction();
164 Preconditions.checkState(taON.isPresent(), NO_TRANSACTION_FOUND_FOR_SESSION + netconfSessionIdForReporting);
166 ConfigTransactionClient transactionClient = configRegistryClient.getConfigTransactionClient(taON.get());
167 transactionClient.abortConfig();
168 allOpenedTransactions.remove(candidateTx);
172 public synchronized void closeReadTransaction() {
173 LOG.debug("Closing read transaction");
174 Optional<ObjectName> taON = getReadTransaction();
175 Preconditions.checkState(taON.isPresent(), NO_TRANSACTION_FOUND_FOR_SESSION + netconfSessionIdForReporting);
177 ConfigTransactionClient transactionClient = configRegistryClient.getConfigTransactionClient(taON.get());
178 transactionClient.abortConfig();
179 allOpenedTransactions.remove(readTx);
183 public synchronized void abortTestTransaction(ObjectName testTx) {
184 LOG.debug("Aborting transaction {}", testTx);
185 ConfigTransactionClient transactionClient = configRegistryClient.getConfigTransactionClient(testTx);
186 allOpenedTransactions.remove(testTx);
187 transactionClient.abortConfig();
190 public void validateTransaction() throws ValidationException {
191 Optional<ObjectName> taON = getTransaction();
192 Preconditions.checkState(taON.isPresent(), NO_TRANSACTION_FOUND_FOR_SESSION + netconfSessionIdForReporting);
194 ConfigTransactionClient transactionClient = configRegistryClient.getConfigTransactionClient(taON.get());
195 transactionClient.validateConfig();
198 public void validateTestTransaction(ObjectName taON) throws ValidationException {
199 ConfigTransactionClient transactionClient = configRegistryClient.getConfigTransactionClient(taON);
200 transactionClient.validateConfig();
203 public void wipeTestTransaction(ObjectName taON) {
204 wipeInternal(taON, true);
208 * Wiping means removing all module instances keeping the transaction open + service references.
210 synchronized void wipeInternal(ObjectName taON, boolean isTest) {
211 ConfigTransactionClient transactionClient = configRegistryClient.getConfigTransactionClient(taON);
213 Set<ObjectName> lookupConfigBeans = transactionClient.lookupConfigBeans();
214 int i = lookupConfigBeans.size();
215 for (ObjectName instance : lookupConfigBeans) {
217 transactionClient.destroyModule(instance);
218 } catch (InstanceNotFoundException e) {
220 LOG.debug("Unable to clean configuration in transactiom {}", taON, e);
222 LOG.warn("Unable to clean configuration in transactiom {}", taON, e);
225 throw new IllegalStateException("Unable to clean configuration in transactiom " + taON, e);
228 LOG.debug("Transaction {} wiped clean of {} config beans", taON, i);
230 transactionClient.removeAllServiceReferences();
231 LOG.debug("Transaction {} wiped clean of all service references", taON);
234 public void wipeTransaction() {
235 Optional<ObjectName> taON = getTransaction();
236 Preconditions.checkState(taON.isPresent(), NO_TRANSACTION_FOUND_FOR_SESSION + netconfSessionIdForReporting);
237 wipeInternal(taON.get(), false);