JSONUtil.java Source code

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Here is the source code for JSONUtil.java

Source

import org.apache.commons.lang.StringUtils;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.json.JSONTokener;
import org.w3c.dom.Node;

import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

/*
 * Licensed to the Sakai Foundation (SF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The SF licenses this file
 * to you 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.
 */

/**
 *
 */
public class JSONUtil {
    /**
     * @param string
     * @return
     * @throws IOException
     * @throws JSONException
     */
    public static JSONObject loadJson(String file) throws IOException, JSONException {
        File f = new File(file);
        FileReader fr = new FileReader(f);
        JSONTokener j = new JSONTokener(fr);
        JSONObject in = new JSONObject(j);
        fr.close();
        return in;
    }

    /**
     * @param out
     * @param string
     * @throws IOException
     * @throws JSONException
     */
    public static void saveJson(JSONObject out, String file) throws IOException, JSONException {
        File fo = new File(file);
        FileWriter fw = new FileWriter(fo);
        fw.append(out.toString(4));
        fw.close();
    }

    /**
     * @param namedItem
     * @return
     */
    public static String safeId(String nodeName) {
        nodeName = nodeName.replace(' ', '-');
        nodeName = nodeName.replace('_', '-');
        nodeName = nodeName.replace('"', '-');
        nodeName = nodeName.replace(';', '-');
        nodeName = nodeName.replace(',', '-');
        nodeName = nodeName.replace('\'', '-');
        nodeName = nodeName.replace('(', '-');
        nodeName = nodeName.replace(')', '-');
        nodeName = nodeName.replace('.', '-');
        nodeName = nodeName.replace('/', '-');
        nodeName = nodeName.replace('?', '-');
        return nodeName;
    }

    /**
     * @param o
     * @param string
     * @throws JSONException
     */
    public static void toArray(JSONObject o, String key) throws JSONException {
        if (o.has(key)) {
            Object ob = o.get(key);
            if (ob instanceof JSONArray) {
                // no action
            } else if (ob instanceof JSONObject) {
                // no action
            } else {
                String v = o.getString(key);
                String[] values = StringUtils.split(v, ',');
                JSONArray a = new JSONArray();
                for (String value : values) {
                    a.put(value);
                }
                o.put(key, a);
            }
        } else {
            JSONArray a = new JSONArray();
            o.put(key, a);
        }

    }

}