GelfMessageLevel.java

/*
 * Copyright 2014 TORCH GmbH
 *
 * 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 org.graylog2.gelfclient;

/**
 * The log level of a {@link GelfMessage}.
 */
public enum GelfMessageLevel {
    EMERGENCY(0),
    ALERT(1),
    CRITICAL(2),
    ERROR(3),
    WARNING(4),
    NOTICE(5),
    INFO(6),
    DEBUG(7);

    private final int numericLevel;

    GelfMessageLevel(final int numericLevel) {
        this.numericLevel = numericLevel;
    }

    /**
     * Get the numerical level of a {@link GelfMessage}.
     *
     * @return the numerical level
     */
    public int getNumericLevel() {
        return numericLevel;
    }

    public static GelfMessageLevel fromNumericLevel(final int level) {
        for (final GelfMessageLevel gelfMessageLevel : GelfMessageLevel.values()) {
            if (level == gelfMessageLevel.getNumericLevel()) {
                return gelfMessageLevel;
            }
        }

        throw new IllegalArgumentException("Unknown GELF message level: " + level);
    }

    public String toString() {
        return name() + "(" + numericLevel + ")";
    }
}