| /** |
| * 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 java.util.HashSet; |
| import java.util.Set; |
| |
| 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.TimelineFilter; |
| import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineKeyValuesFilter; |
| |
| /** |
| * Used for parsing relation filters. |
| */ |
| @Private |
| @Unstable |
| class TimelineParserForRelationFilters extends |
| TimelineParserForEqualityExpr { |
| private final String valueDelimiter; |
| public TimelineParserForRelationFilters(String expression, char valuesDelim, |
| String valueDelim) { |
| super(expression, "Relation Filter", valuesDelim); |
| valueDelimiter = valueDelim; |
| } |
| |
| @Override |
| protected TimelineFilter createFilter() { |
| return new TimelineKeyValuesFilter(); |
| } |
| |
| @Override |
| protected void setCompareOpToCurrentFilter(TimelineCompareOp compareOp) { |
| ((TimelineKeyValuesFilter)getCurrentFilter()).setCompareOp(compareOp); |
| } |
| |
| @Override |
| protected void setValueToCurrentFilter(String value) |
| throws TimelineParseException { |
| if (value != null) { |
| String[] pairStrs = value.split(valueDelimiter); |
| if (pairStrs.length < 2) { |
| throw new TimelineParseException("Invalid relation filter expression"); |
| } |
| String key = pairStrs[0].trim(); |
| Set<Object> values = new HashSet<Object>(); |
| for (int i = 1; i < pairStrs.length; i++) { |
| values.add(pairStrs[i].trim()); |
| } |
| ((TimelineKeyValuesFilter)getCurrentFilter()). |
| setKeyAndValues(key, values); |
| } |
| } |
| } |