InProgressTrackingCommandListener.java

/*
 * Copyright (c) 2008 - 2013 10gen, Inc. <http://10gen.com>
 *
 * 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.
 *
 */

import com.mongodb.connection.ConnectionId;
import com.mongodb.event.CommandFailedEvent;
import com.mongodb.event.CommandListener;
import com.mongodb.event.CommandStartedEvent;
import com.mongodb.event.CommandSucceededEvent;
import org.bson.BsonDocument;

import java.util.ArrayList;
import java.util.Collection;
import java.util.concurrent.ConcurrentHashMap;

public class InProgressTrackingCommandListener implements CommandListener {

    public static class TrackingData {

        private final long requestId;
        private final ConnectionId connectionId;
        private final String databaseName;
        private final String commandName;
        private final BsonDocument command;

        TrackingData(CommandStartedEvent event) {
             requestId = event.getRequestId();
             connectionId = event.getConnectionDescription().getConnectionId();
             databaseName = event.getDatabaseName();
             commandName = event.getCommandName();
             command = event.getCommand().clone();
        }

        public long getRequestId() {
            return requestId;
        }

        public ConnectionId getConnectionId() {
            return connectionId;
        }

        public String getDatabaseName() {
            return databaseName;
        }

        public String getCommandName() {
            return commandName;
        }

        public BsonDocument getCommand() {
            return command;
        }
    }

    private final ConcurrentHashMap<Integer, TrackingData> inProgressCommands = new ConcurrentHashMap<>();

    public Collection<TrackingData> getInProgressCommandsTrackingData() {
        return new ArrayList<>(inProgressCommands.values());
    }

    @Override
    public void commandStarted(CommandStartedEvent event) {
        inProgressCommands.put(event.getRequestId(), new TrackingData(event));
    }

    @Override
    public void commandSucceeded(CommandSucceededEvent event) {
       inProgressCommands.remove(event.getRequestId());
    }

    @Override
    public void commandFailed(CommandFailedEvent event) {
        inProgressCommands.remove(event.getRequestId());
    }
}