    001    /*
    002     * Copyright (c) 2007-2014 Concurrent, Inc. All Rights Reserved.
    003     *
    004     * Project and contact information: http://www.cascading.org/
    005     *
    006     * This file is part of the Cascading project.
    007     *
    008     * Licensed under the Apache License, Version 2.0 (the "License");
    009     * you may not use this file except in compliance with the License.
    010     * You may obtain a copy of the License at
    011     *
    012     *     http://www.apache.org/licenses/LICENSE-2.0
    013     *
    014     * Unless required by applicable law or agreed to in writing, software
    015     * distributed under the License is distributed on an "AS IS" BASIS,
    016     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    017     * See the License for the specific language governing permissions and
    018     * limitations under the License.
    019     */
    020
    021    package cascading.management;
    022
    023    import cascading.provider.CascadingService;
    024
    025    /** Interface MetricsService provides fine grained hooks for managing various metrics. */
    026    public interface MetricsService extends CascadingService
    027      {
    028      String METRICS_SERVICE_CLASS_PROPERTY = "cascading.management.metrics.service.classname";
    029
    030      void increment( String[] context, int amount );
    031
    032      void set( String[] context, String value );
    033
    034      void set( String[] context, int value );
    035
    036      void set( String[] context, long value );
    037
    038      String getString( String[] context );
    039
    040      int getInt( String[] context );
    041
    042      long getLong( String[] context );
    043
    044      boolean compareSet( String[] context, String isValue, String toValue );
    045
    046      boolean compareSet( String[] context, int isValue, int toValue );
    047
    048      boolean compareSet( String[] context, long isValue, long toValue );
    049      }