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jsync.io is a non-blocking, event-driven networking framework for Java

There is a newer version: 1.10.13

/*
 * Copyright (c) 2011-2013 The original author or authors
 * ------------------------------------------------------
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Apache License v2.0 which accompanies this distribution.
 *
 *     The Eclipse Public License is available at
 *     http://www.eclipse.org/legal/epl-v10.html
 *
 *     The Apache License v2.0 is available at
 *     http://www.opensource.org/licenses/apache2.0.php
 *
 * You may elect to redistribute this code under either of these licenses.
 */

package io.jsync.json.impl;


import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import io.jsync.json.DecodeException;
import io.jsync.json.EncodeException;

/**
 * @author Tim Fox
 */
public class Json {

    private final static ObjectMapper mapper = new ObjectMapper();
    private final static ObjectMapper prettyMapper = new ObjectMapper();

    static {
        // Non-standard JSON but we allow C style comments in our JSON
        mapper.configure(JsonParser.Feature.ALLOW_COMMENTS, true);
    }

    static {
        prettyMapper.configure(SerializationFeature.INDENT_OUTPUT, true);
    }

    public static String encode(Object obj) throws EncodeException {
        try {
            return mapper.writeValueAsString(obj);
        } catch (Exception e) {
            throw new EncodeException("Failed to encode as JSON: " + e.getMessage());
        }
    }

    public static String encodePrettily(Object obj) throws EncodeException {
        try {
            return prettyMapper.writeValueAsString(obj);
        } catch (Exception e) {
            throw new EncodeException("Failed to encode as JSON: " + e.getMessage());
        }
    }

    @SuppressWarnings("unchecked")
    public static  T decodeValue(String str, Class clazz) throws DecodeException {
        try {
            return (T) mapper.readValue(str, clazz);
        } catch (Exception e) {
            throw new DecodeException("Failed to decode:" + e.getMessage());
        }
    }

}