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Cattle framework utils component pom
There is a newer version: 1.0.1-M3
/*
 * Copyright (C) 2018 the original author or 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 org.cattleframework.utils.auxiliary;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.Type;

import org.cattleframework.exception.ExceptionWrapUtils;

import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ObjectWriter;

/**
 * Jackson工具
 * 
 * @author orange
 *
 */
public final class JacksonUtils {

    private static final ObjectMapper MAPPER = new ObjectMapper();

    private JacksonUtils() {
    }

    static {
	MAPPER.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
	MAPPER.setSerializationInclusion(Include.NON_NULL);
    }

    public static  String toJson(T object) {
	return toJson(object, false);
    }

    public static  String toJson(T object, boolean pretty) {
	try {
	    if (pretty) {
		ObjectWriter objectWriter = MAPPER.writerWithDefaultPrettyPrinter();
		return objectWriter.writeValueAsString(object);
	    } else {
		return MAPPER.writeValueAsString(object);
	    }
	} catch (JsonProcessingException e) {
	    throw ExceptionWrapUtils.wrap(e);
	}
    }

    public static  byte[] toJsonBytes(T object) {
	return toJsonBytes(object, false);
    }

    public static  byte[] toJsonBytes(T object, boolean pretty) {
	try {
	    if (pretty) {
		ObjectWriter objectWriter = MAPPER.writerWithDefaultPrettyPrinter();
		return objectWriter.writeValueAsBytes(object);
	    } else {
		return MAPPER.writeValueAsBytes(object);
	    }
	} catch (JsonProcessingException e) {
	    throw ExceptionWrapUtils.wrap(e);
	}
    }

    public static  void toJsonOutputStream(T object, OutputStream outputStream) {
	toJsonOutputStream(object, outputStream, false);
    }

    public static  void toJsonOutputStream(T object, OutputStream outputStream, boolean pretty) {
	try {
	    if (pretty) {
		ObjectWriter objectWriter = MAPPER.writerWithDefaultPrettyPrinter();
		objectWriter.writeValue(outputStream, object);
	    } else {
		MAPPER.writeValue(outputStream, object);
	    }
	} catch (IOException e) {
	    throw ExceptionWrapUtils.wrap(e);
	}
    }

    public static  T toObject(String json, Class type) {
	try {
	    return MAPPER.readValue(json, type);
	} catch (JsonProcessingException e) {
	    throw ExceptionWrapUtils.wrap(e);
	}
    }

    public static  T toObject(String json, Type type) {
	try {
	    return MAPPER.readValue(json, MAPPER.constructType(type));
	} catch (JsonProcessingException e) {
	    throw ExceptionWrapUtils.wrap(e);
	}
    }

    public static  T toObject(String json, TypeReference typeReference) {
	try {
	    return MAPPER.readValue(json, typeReference);
	} catch (JsonProcessingException e) {
	    throw ExceptionWrapUtils.wrap(e);
	}
    }

    public static  T toObject(byte[] jsonBytes, Class type) {
	try {
	    return MAPPER.readValue(jsonBytes, type);
	} catch (IOException e) {
	    throw ExceptionWrapUtils.wrap(e);
	}
    }

    public static  T toObject(byte[] jsonBytes, Type type) {
	try {
	    return MAPPER.readValue(jsonBytes, MAPPER.constructType(type));
	} catch (IOException e) {
	    throw ExceptionWrapUtils.wrap(e);
	}
    }

    public static  T toObject(byte[] jsonBytes, TypeReference typeReference) {
	try {
	    return MAPPER.readValue(jsonBytes, typeReference);
	} catch (IOException e) {
	    throw ExceptionWrapUtils.wrap(e);
	}
    }

    public static  T toObject(InputStream inputStream, Class type) {
	try {
	    return MAPPER.readValue(inputStream, type);
	} catch (IOException e) {
	    throw ExceptionWrapUtils.wrap(e);
	}
    }

    public static  T toObject(InputStream inputStream, Type type) {
	try {
	    return MAPPER.readValue(inputStream, MAPPER.constructType(type));
	} catch (IOException e) {
	    throw ExceptionWrapUtils.wrap(e);
	}
    }

    public static  T toObject(InputStream inputStream, TypeReference typeReference) {
	try {
	    return MAPPER.readValue(inputStream, typeReference);
	} catch (IOException e) {
	    throw ExceptionWrapUtils.wrap(e);
	}
    }
}