/*
 * Copyright (c) 2008-2014 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;

import java.util.logging.Logger;

import static org.bson.util.Assertions.notNull;

final class Loggers {
    /**
     * The prefix for all logger names.
     */
    public static final String PREFIX = "com.mongodb.driver";

    /**
     * Gets a logger with the given suffix appended on to {@code PREFIX}, separated by a '.'.
     *
     * @param suffix the sufix for the logger
     * @return the logger
     * @see Loggers#PREFIX
     */
    public static Logger getLogger(final String suffix) {
        notNull("suffix", suffix);
        if (suffix.startsWith(".") || suffix.endsWith(".")) {
            throw new IllegalArgumentException("The suffix can not start or end with a '.'");
        }
        return Logger.getLogger(PREFIX + ":" + suffix);
    }

    private Loggers() {
    }
}

/*
 * Copyright (c) 2008-2014 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;

import java.util.logging.Logger;

import static org.bson.util.Assertions.notNull;

final class Loggers {
    /**
     * The prefix for all logger names.
     */
    public static final String PREFIX = "com.mongodb.driver";

    /**
     * Gets a logger with the given suffix appended on to {@code PREFIX}, separated by a '.'.
     *
     * @param suffix the sufix for the logger
     * @return the logger
     * @see Loggers#PREFIX
     */
    public static Logger getLogger(final String suffix) {
        notNull("suffix", suffix);
        if (suffix.startsWith(".") || suffix.endsWith(".")) {
            throw new IllegalArgumentException("The suffix can not start or end with a '.'");
        }
        return Logger.getLogger(PREFIX + "." + suffix);
    }

    private Loggers() {
    }
}

Use . instead of : for final separator in Loggers.