| // Copyright (C) 2013 The Android Open Source Project |
| // |
| // 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 com.google.gerrit.server.query.change; |
| |
| import com.google.common.collect.Lists; |
| import com.google.common.collect.Maps; |
| import com.google.gerrit.server.query.QueryParseException; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * This class is used to extract comma separated values in a predicate. |
| * <p> |
| * If tags for the values are present (e.g. "branch=jb_2.3,vote=approved") then |
| * the args are placed in a map that maps tag to value (e.g., "branch" to "jb_2.3"). |
| * If no tag is present (e.g. "jb_2.3,approved") then the args are placed into a |
| * positional list. Args may be mixed so some may appear in the map and others |
| * in the positional list (e.g. "vote=approved,jb_2.3). |
| */ |
| public class PredicateArgs { |
| public List<String> positional; |
| public Map<String, String> keyValue; |
| |
| /** |
| * Parses query arguments into {@link #keyValue} and/or {@link #positional}.. |
| * <p> |
| * Labels for these arguments should be kept in ChangeQueryBuilder |
| * as {@code ARG_ID_{argument name}}. |
| * |
| * @param args arguments to be parsed |
| * @throws QueryParseException |
| */ |
| PredicateArgs(String args) throws QueryParseException { |
| positional = Lists.newArrayList(); |
| keyValue = Maps.newHashMap(); |
| |
| String[] splitArgs = args.split(","); |
| |
| for (String arg : splitArgs) { |
| String[] splitKeyValue = arg.split("="); |
| |
| if (splitKeyValue.length == 1) { |
| positional.add(splitKeyValue[0]); |
| } else if (splitKeyValue.length == 2) { |
| if (!keyValue.containsKey(splitKeyValue[0])) { |
| keyValue.put(splitKeyValue[0], splitKeyValue[1]); |
| } else { |
| throw new QueryParseException("Duplicate key " + splitKeyValue[0]); |
| } |
| } else { |
| throw new QueryParseException("invalid arg " + arg); |
| } |
| } |
| } |
| } |