com.vilt.minium.app.json.ConsoleObjectMapper Maven / Gradle / Ivy

Go to download
/*
 * Copyright (C) 2013 The Minium Authors
 *
 * 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.vilt.minium.app.json;

import java.io.IOException;

import com.fasterxml.jackson.core.JsonGenerationException;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.google.common.base.Throwables;
import com.vilt.minium.app.controller.EvalException;

public class ConsoleObjectMapper extends ObjectMapper {

    private static final long serialVersionUID = -4748586342393419901L;

    public static class ThrowableJsonSerializer extends JsonSerializer {

        @Override
        public void serialize(T value, JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonProcessingException {
            jgen.writeStartObject();
            jgen.writeStringField("class", value.getClass().getName());
            jgen.writeStringField("message", value.getMessage());
            jgen.writeStringField("fullStackTrace", Throwables.getStackTraceAsString(value));
            writeAdditionalFields(value, jgen, provider);
            jgen.writeEndObject();
        }

        protected void writeAdditionalFields(T value, JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonProcessingException {
        }
    }

    public static class EvalExceptionJsonSerializer extends ThrowableJsonSerializer {

        @Override
        protected void writeAdditionalFields(EvalException value, JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonGenerationException {
            jgen.writeStringField("sourceName", value.getSourceName());
            jgen.writeNumberField("lineNumber", value.getLineNumber());
        }
    }

    public static final class ThrowableModule extends SimpleModule {

        private static final long serialVersionUID = 4961661605352445721L;

        public ThrowableModule() {
            addSerializer(EvalException.class, new EvalExceptionJsonSerializer());
            addSerializer(Exception.class, new ThrowableJsonSerializer());
        }
    }

    public ConsoleObjectMapper() {
        super();
        registerModule(new ThrowableModule());
    }

}