Java tutorial
/* * Copyright 2008-present MongoDB, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.mongodb.event; import com.mongodb.connection.ConnectionDescription; import org.bson.BsonDocument; import java.util.concurrent.TimeUnit; import static com.mongodb.assertions.Assertions.isTrueArgument; /** * An event representing the completion of a MongoDB database command. * * @since 3.1 */ public final class CommandSucceededEvent extends CommandEvent { private final BsonDocument response; private final long elapsedTimeNanos; /** * Construct an instance. * @param requestId the request id * @param connectionDescription the connection description * @param commandName the command name * @param response the command response * @param elapsedTimeNanos the non-negative elapsed time in nanoseconds for the operation to complete */ public CommandSucceededEvent(final int requestId, final ConnectionDescription connectionDescription, final String commandName, final BsonDocument response, final long elapsedTimeNanos) { super(requestId, connectionDescription, commandName); this.response = response; isTrueArgument("elapsed time is not negative", elapsedTimeNanos >= 0); this.elapsedTimeNanos = elapsedTimeNanos; } /** * Gets the elapsed time in the given unit of time. * * @param timeUnit the time unit in which to get the elapsed time * @return the elapsed time */ public long getElapsedTime(final TimeUnit timeUnit) { return timeUnit.convert(elapsedTimeNanos, TimeUnit.NANOSECONDS); } /** * Gets the response document. The document is only usable within the method that delivered the event. If it's needed for longer, it * must be cloned via {@link Object#clone()}. * * @return the response document */ public BsonDocument getResponse() { return response; } }