JsonUtil.java

package com.sequenceiq.cloudbreak.util;

import java.io.IOException;
import java.io.Reader;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.TreeNode;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

public class JsonUtil {

    private static final ObjectMapper MAPPER = new ObjectMapper();

    private JsonUtil() {
    }

    public static <T> T readValue(Reader reader, Class<T> valueType) throws IOException {
        return MAPPER.readValue(reader, valueType);
    }

    public static <T> T readValue(String content, Class<T> valueType) throws IOException {
        return MAPPER.readValue(content, valueType);
    }

    public static String writeValueAsString(Object object) throws JsonProcessingException {
        return MAPPER.writeValueAsString(object);
    }

    public static JsonNode readTree(String content) throws IOException {
        return MAPPER.readTree(content);
    }

    public static String minify(String content) {
        try {
            return readTree(content).toString();
        } catch (IOException e) {
            return "INVALID_JSON_CONTENT";
        }
    }

    public static <T> T treeToValue(TreeNode n, Class<T> valueType) throws JsonProcessingException {
        return MAPPER.treeToValue(n, valueType);
    }

}