com.github.zdsiyan.maven.plugin.smartconfig.internal.JSONPathConfigurator.java Source code

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Here is the source code for com.github.zdsiyan.maven.plugin.smartconfig.internal.JSONPathConfigurator.java

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/*-
 * ========================LICENSE_START=================================
 * Smartconfig Maven Plugin
 * *
 * Copyright (C) 2016 BruceZhang
 * *
 * 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.
 * =========================LICENSE_END==================================
 */

package com.github.zdsiyan.maven.plugin.smartconfig.internal;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.Charset;
import java.util.List;

import org.apache.commons.io.IOUtils;
import com.github.zdsiyan.maven.plugin.smartconfig.Configurator;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONPath;
import com.alibaba.fastjson.parser.Feature;
import com.github.zdsiyan.maven.plugin.smartconfig.model.PointHandle;

/**
 * jsonpath?.
 *
 * @author Kevin Zou <kevinz@skfiy.org>
 */
public class JSONPathConfigurator implements Configurator {

    @Override
    public ByteArrayOutputStream execute(InputStream in, Charset charset, List<PointHandle> pointhandles)
            throws IOException {
        Object json = JSON.parse(IOUtils.toByteArray(new InputStreamReader(in), charset), Feature.OrderedField);
        //JSONObject jsonObject = JSON.parseObject(IOUtils.toString(in, charset), Feature.OrderedField);

        JSONPath path;
        for (PointHandle point : pointhandles) {
            path = JSONPath.compile(point.getExpression());
            switch (point.getMode()) {
            case insert:
                //jsonObject.put(path, point.getValue());
                path.set(json, point.getValue());
                break;
            case delete:
                //jsonObject.remove(path);
                path.set(json, "");
                break;
            case replace:
            default:
                path.set(json, point.getValue());
                //path.set(jsonObject, point.getValue());
                break;
            }

        }

        String text = JSON.toJSONString(json, true);

        ByteArrayOutputStream out = new ByteArrayOutputStream();
        //out.write(jsonObject.toString().getBytes(charset));
        out.write(text.getBytes(charset));
        return out;
    }

}