| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.hadoop.yarn.server.timelineservice.reader; |
| |
| import org.apache.hadoop.classification.InterfaceAudience.Private; |
| import org.apache.hadoop.classification.InterfaceStability.Unstable; |
| import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineCompareOp; |
| import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineExistsFilter; |
| import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineFilter; |
| |
| /** |
| * Used for parsing existence filters such as event filters. These filters |
| * check for existence of a value. For example, in case of event filters, they |
| * check if an event exists or not and accordingly return an entity. |
| */ |
| @Private |
| @Unstable |
| class TimelineParserForExistFilters extends TimelineParserForEqualityExpr { |
| |
| public TimelineParserForExistFilters(String expression, char delimiter) { |
| super(expression, "Event Filter", delimiter); |
| } |
| |
| protected TimelineFilter createFilter() { |
| return new TimelineExistsFilter(); |
| } |
| |
| protected void setValueToCurrentFilter(String value) { |
| ((TimelineExistsFilter)getCurrentFilter()).setValue(value); |
| } |
| |
| protected void setCompareOpToCurrentFilter(TimelineCompareOp compareOp) { |
| ((TimelineExistsFilter)getCurrentFilter()).setCompareOp(compareOp); |
| } |
| } |