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 }