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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements. See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache license, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License. You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the license for the specific language governing permissions and
15   * limitations under the license.
16   */
17  package org.apache.logging.log4j.core.parser;
18  
19  import com.fasterxml.jackson.databind.DeserializationFeature;
20  import com.fasterxml.jackson.databind.ObjectMapper;
21  import com.fasterxml.jackson.databind.ObjectReader;
22  import org.apache.logging.log4j.core.LogEvent;
23  import org.apache.logging.log4j.core.impl.Log4jLogEvent;
24  
25  import java.io.IOException;
26  
27  class AbstractJacksonLogEventParser implements TextLogEventParser {
28      private final ObjectReader objectReader;
29  
30      AbstractJacksonLogEventParser(final ObjectMapper objectMapper) {
31          objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
32          this.objectReader = objectMapper.readerFor(Log4jLogEvent.class);
33      }
34  
35      @Override
36      public LogEvent parseFrom(final String input) throws ParseException {
37          try {
38              return objectReader.readValue(input);
39          } catch (final IOException e) {
40              throw new ParseException(e);
41          }
42      }
43  
44      @Override
45      public LogEvent parseFrom(final byte[] input) throws ParseException {
46          try {
47              return objectReader.readValue(input);
48          } catch (final IOException e) {
49              throw new ParseException(e);
50          }
51      }
52  
53      @Override
54      public LogEvent parseFrom(final byte[] input, final int offset, final int length) throws ParseException {
55          try {
56              return objectReader.readValue(input, offset, length);
57          } catch (final IOException e) {
58              throw new ParseException(e);
59          }
60      }
61  }