| /* |
| * 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.logging.log4j.jackson; |
| |
| import java.io.IOException; |
| |
| import com.fasterxml.jackson.core.JsonParser; |
| import com.fasterxml.jackson.core.JsonProcessingException; |
| import com.fasterxml.jackson.core.JsonToken; |
| import com.fasterxml.jackson.databind.DeserializationContext; |
| import com.fasterxml.jackson.databind.JsonMappingException; |
| import com.fasterxml.jackson.databind.deser.std.StdScalarDeserializer; |
| |
| /** |
| * Copy and edit the Jackson (Apache License 2.0) class to use Log4j attribute names. Does not work as of Jackson 2.3.2. |
| * <p> |
| * <em>Consider this class private.</em> |
| * </p> |
| */ |
| public final class Log4jStackTraceElementDeserializer extends StdScalarDeserializer<StackTraceElement> { |
| private static final long serialVersionUID = 1L; |
| |
| /** |
| * Constructs a new initialized instance. |
| */ |
| public Log4jStackTraceElementDeserializer() { |
| super(StackTraceElement.class); |
| } |
| |
| @Override |
| public StackTraceElement deserialize(final JsonParser jp, final DeserializationContext ctxt) throws IOException, |
| JsonProcessingException { |
| JsonToken t = jp.getCurrentToken(); |
| // Must get an Object |
| if (t == JsonToken.START_OBJECT) { |
| String className = null, methodName = null, fileName = null; |
| int lineNumber = -1; |
| |
| while ((t = jp.nextValue()) != JsonToken.END_OBJECT) { |
| final String propName = jp.getCurrentName(); |
| if ("class".equals(propName)) { |
| className = jp.getText(); |
| } else if ("file".equals(propName)) { |
| fileName = jp.getText(); |
| } else if ("line".equals(propName)) { |
| if (t.isNumeric()) { |
| lineNumber = jp.getIntValue(); |
| } else { |
| // An XML number always comes in a string since there is no syntax help as with JSON. |
| try { |
| lineNumber = Integer.parseInt(jp.getText().trim()); |
| } catch (final NumberFormatException e) { |
| throw JsonMappingException.from(jp, "Non-numeric token (" + t + ") for property 'line'", e); |
| } |
| } |
| } else if ("method".equals(propName)) { |
| methodName = jp.getText(); |
| } else if ("nativeMethod".equals(propName)) { |
| // no setter, not passed via constructor: ignore |
| } else { |
| this.handleUnknownProperty(jp, ctxt, this._valueClass, propName); |
| } |
| } |
| return new StackTraceElement(className, methodName, fileName, lineNumber); |
| } |
| throw ctxt.mappingException(this._valueClass, t); |
| } |
| } |