3 * * Copyright (C) 2014 EBay Software Foundation
5 * * This program and the accompanying materials are made available under the
6 * * terms of the Eclipse Public License v1.0 which accompanies this distribution,
7 * * and is available at http://www.eclipse.org/legal/epl-v10.html
9 * * Authors : Ashwin Raveendran
13 package org.opendaylight.ovsdb.lib;
15 import java.util.List;
17 import org.opendaylight.ovsdb.lib.message.MonitorRequest;
18 import org.opendaylight.ovsdb.lib.operations.Operation;
19 import org.opendaylight.ovsdb.lib.operations.OperationResult;
20 import org.opendaylight.ovsdb.lib.operations.TransactionBuilder;
21 import org.opendaylight.ovsdb.lib.schema.DatabaseSchema;
22 import org.opendaylight.ovsdb.lib.schema.TableSchema;
24 import com.google.common.util.concurrent.ListenableFuture;
27 * The main interface to interact with a device speaking ovsdb protocol in an asynchronous fashion and hence most
28 * operations return a Future object representing the eventual response data from the remote.
30 public interface OvsDBClient {
33 * Gets the list of database names exposed by this ovsdb capable device
34 * @return list of database names
36 ListenableFuture<List<String>> getDatabases();
39 * Asynchronously returns the schema object for a specific database
40 * @param database name of the database schema
41 * @param cacheResult if the results be cached by this instance
42 * @return DatabaseSchema future
44 ListenableFuture<DatabaseSchema> getSchema(String database, boolean cacheResult);
47 * Allows for a mini DSL way of collecting the transactions to be executed against the ovsdb instance.
48 * @return TransactionBuilder
50 TransactionBuilder transactBuilder();
53 * Execute the list of operations in a single Transactions. Similar to the transactBuilder() method
54 * @param operations List of operations that needs to be part of a transact call
55 * @return Future object representing the result of the transaction. Calling
56 * cancel on the Future would cause OVSDB cancel operation to be fired against
59 ListenableFuture<List<OperationResult>> transact(List<Operation> operations);
63 * ovsdb <a href="http://tools.ietf.org/html/draft-pfaff-ovsdb-proto-04#section-4.1.5">monitor</a> operation.
64 * @param monitorRequests represents what needs to be monitored including a client specified monitor handle. This
65 * handle is used to later cancel ({@link #cancelMonitor(MonitorHandle)}) the monitor.
66 * @param callback receives the monitor response
68 public <E extends TableSchema<E>> MonitorHandle monitor(DatabaseSchema schema, List<MonitorRequest<E>> monitorRequests,
69 MonitorCallBack callback);
72 * Cancels an existing monitor method.
73 * @param handler Handle identifying a specific monitor request that is being cancelled.
74 * @throws java.lang.IllegalStateException if there is no outstanding monitor request for this handle
76 public void cancelMonitor(MonitorHandle handler);
79 * ovsdb <a href="http://tools.ietf.org/html/draft-pfaff-ovsdb-proto-04#section-4.1.8">lock</a> operation.
80 * @param lockId a client specified id for the lock; this can be used for unlocking ({@link #unLock(String)})
81 * @param lockedCallBack Callback to nofify when the lock is acquired
82 * @param stolenCallback Callback to notify when an acquired lock is stolen by another client
84 public void lock(String lockId, LockAquisitionCallback lockedCallBack, LockStolenCallback stolenCallback);
87 * ovsdb steal operation, see {@link #lock(String, LockAquisitionCallback, LockStolenCallback)}
91 public ListenableFuture<Boolean> steal(String lockId);
94 * ovsdb unlock operaiton, see {@link #unLock(String)}
98 public ListenableFuture<Boolean> unLock(String lockId);
101 * Starts the echo service. The {@code callbackFilters} can be used to get notified on the absence of echo
102 * notifications from the remote device and control the frequency of such notifications.
103 * @param callbackFilters callbacks for notifying the client of missing echo calls from remote.
105 public void startEchoService(EchoServiceCallbackFilters callbackFilters);
108 * Stops the echo service, i.e echo requests from the remote would not be acknowledged after this call.
110 public void stopEchoService();