| /* |
| * 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 java.util.Map; |
| |
| import org.apache.logging.log4j.util.ReadOnlyStringMap; |
| import org.apache.logging.log4j.util.TriConsumer; |
| |
| import com.fasterxml.jackson.core.JsonGenerationException; |
| import com.fasterxml.jackson.core.JsonGenerator; |
| import com.fasterxml.jackson.databind.SerializerProvider; |
| import com.fasterxml.jackson.databind.ser.std.StdSerializer; |
| |
| /** |
| * <p> |
| * <em>Consider this class private.</em> |
| * </p> |
| */ |
| public class ContextDataSerializer extends StdSerializer<ReadOnlyStringMap> { |
| |
| private static final long serialVersionUID = 1L; |
| |
| private static final TriConsumer<String, Object, JsonGenerator> WRITE_STRING_FIELD_INTO = |
| new TriConsumer<String, Object, JsonGenerator>() { |
| |
| @Override |
| public void accept(final String key, final Object value, final JsonGenerator jsonGenerator) { |
| try { |
| jsonGenerator.writeStringField(key, String.valueOf(value)); |
| } catch (final Exception ex) { |
| throw new IllegalStateException("Problem with key " + key, ex); |
| } |
| } |
| }; |
| |
| protected ContextDataSerializer() { |
| super(Map.class, false); |
| } |
| |
| @Override |
| public void serialize(final ReadOnlyStringMap contextData, final JsonGenerator jgen, |
| final SerializerProvider provider) throws IOException, JsonGenerationException { |
| |
| jgen.writeStartObject(); |
| contextData.forEach(WRITE_STRING_FIELD_INTO, jgen); |
| jgen.writeEndObject(); |
| } |
| } |