| /* |
| * 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.solr.request.json; |
| |
| import java.io.IOException; |
| import org.noggit.JSONParser; |
| |
| public class JSONUtil { |
| |
| |
| public static boolean advanceToMapKey(JSONParser parser, String key, boolean deepSearch) throws IOException { |
| for (;;) { |
| int event = parser.nextEvent(); |
| switch (event) { |
| case JSONParser.STRING: |
| if (key != null && parser.wasKey()) { |
| String val = parser.getString(); |
| if (key.equals(val)) { |
| return true; |
| } |
| } |
| break; |
| case JSONParser.OBJECT_END: |
| return false; |
| case JSONParser.OBJECT_START: |
| if (deepSearch) { |
| boolean found = advanceToMapKey(parser, key, true); |
| if (found) { |
| return true; |
| } |
| } else { |
| advanceToMapKey(parser, null, false); |
| } |
| break; |
| case JSONParser.ARRAY_START: |
| skipArray(parser, key, deepSearch); |
| break; |
| } |
| } |
| } |
| |
| public static void skipArray(JSONParser parser, String key, boolean deepSearch) throws IOException { |
| for (;;) { |
| int event = parser.nextEvent(); |
| switch (event) { |
| case JSONParser.OBJECT_START: |
| advanceToMapKey(parser, key, deepSearch); |
| break; |
| case JSONParser.ARRAY_START: |
| skipArray(parser, key, deepSearch); |
| break; |
| case JSONParser.ARRAY_END: |
| return; |
| } |
| } |
| } |
| |
| public static void expect(JSONParser parser, int parserEventType) throws IOException { |
| int event = parser.nextEvent(); |
| if (event != parserEventType) { |
| throw new IOException("JSON Parser: expected " + JSONParser.getEventString(parserEventType) + " but got " + JSONParser.getEventString(event) ); |
| } |
| } |
| |
| } |