com.alibaba.dubbo.common.json.Jackson Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of dubbo2 Show documentation

The all in one project of dubbo2

The newest version!

package com.alibaba.dubbo.common.json;

import com.alibaba.dubbo.common.extension.ExtensionLoader;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.TimeZone;

/**
 * @author dylan
 */
public class Jackson {
    private static Logger logger = LoggerFactory.getLogger(Jackson.class);
    private static ObjectMapper objectMapper;

    private static JacksonObjectMapperProvider getJacksonProvider() {
        return ExtensionLoader.getExtensionLoader(JacksonObjectMapperProvider.class).getDefaultExtension();
    }

    /**
     * 获取object mapper
     *
     * @return
     */
    public static ObjectMapper getObjectMapper() {
        if (objectMapper == null) {
            JacksonObjectMapperProvider jacksonObjectMapperProvider = getJacksonProvider();
            if (jacksonObjectMapperProvider != null) {
                objectMapper = jacksonObjectMapperProvider.getObjectMapper();
            }
        }
        if (objectMapper == null) {
            logger.warn("load objectMapper failed, use default config.");
            buildDefaultObjectMapper();
        }
        return objectMapper;
    }

    private static synchronized void buildDefaultObjectMapper() {
        objectMapper = new ObjectMapper();
        objectMapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
//            objectMapper.disable(SerializationFeature.FLUSH_AFTER_WRITE_VALUE);
        objectMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
        objectMapper.setTimeZone(TimeZone.getDefault());
    }
}