com.memfactory.utils.JsonUtil Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of memfactory-utils Show documentation
memfactory-utils
There is a newer version: 0.0.25
package com.memfactory.utils;

import java.io.IOException;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 
 * @author zhairp
 * createDate: 2018-09-04
 */
public class JsonUtil extends JsonFormatter {

	private static final Logger LOG = LoggerFactory.getLogger(JsonUtil.class);

	private JsonUtil() {
	}

	public static boolean getBooleanValue(Map srcMap, String key) {
		try {
			return Boolean.parseBoolean(srcMap.get(key).toString());
		} catch (Exception e) {
			LOG.error("Can not get boolean value from Map: " + srcMap + ", key: " + key);
			return false;
		}
	}

	public static int getIntValue(Map srcMap, String key) {
		try {
			return Integer.parseInt(srcMap.get(key).toString());
		} catch (Exception e) {
			LOG.error("Can not get int value from Map: " + srcMap + ", key: " + key);
			return 0;
		}
	}

	public static long getLongValue(Map srcMap, String key) {
		try {
			return Long.parseLong(srcMap.get(key).toString());
		} catch (Exception e) {
			LOG.error("Can not get long value from Map: " + srcMap + ", key: " + key);
			return 0;
		}
	}

	public static double getDoubleValue(Map srcMap, String key) {
		try {
			return Double.parseDouble(srcMap.get(key).toString());
		} catch (Exception e) {
			LOG.error("Can not get double value from Map: " + srcMap + ", key: " + key);
			return 0.0;
		}
	}

	public static String getStringValue(Map srcMap, String key) {
		try {
			return srcMap.get(key).toString();
		} catch (Exception e) {
			LOG.error("Can not get String value from Map: " + srcMap + ", key: " + key);
			return null;
		}
	}

	public static  T toBean(String src, Class clazz) {
		if (null == src) {
			return null;
		}
		try {
			return toObject(src, clazz);
		} catch (IOException e) {
			LOG.error("Can not convert String: " + src + ", to class: " + clazz, e);
			return null;
		}
	}

	public static  T toBean(String src, Class collectionClass, Class... elementClasses) {
		if (null == src) {
			return null;
		}
		try {
			return toObject(src, collectionClass, elementClasses);
		} catch (IOException e) {
			LOG.error("Can not convert String: " + src + ", to class: " + collectionClass, e);
			return null;
		}
	}

	public static String toString(Object src) {
		if (null == src) {
			return null;
		}
		if (src instanceof String) {
			return (String) src;
		}
		try {
			return toJsonAsString(src);
		} catch (IOException e) {
			LOG.error("Can not convert Object: " + src + ", to String.", e);
			return null;
		}
	}

	@SuppressWarnings("rawtypes")
	public static  List toList(String src, Class clazz) {
		if (null == src) {
			return null;
		}

		List tmpList = toBean(src, List.class);

		if (null != tmpList && tmpList.size() > 0) {
			List resultList = new LinkedList();
			for (Object obj : tmpList) {
				T t = JsonUtil.toBean(JsonUtil.toString(obj), clazz);
				if (null != t) {
					resultList.add(t);
				}
			}
			return resultList;
		}
		return null;
	}

}