com.google.appinventor.server.properties.json.ServerJsonObject.java Source code

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Here is the source code for com.google.appinventor.server.properties.json.ServerJsonObject.java

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// -*- mode: java; c-basic-offset: 2; -*-
// Copyright 2009-2011 Google, All Rights reserved
// Copyright 2011-2012 MIT, All rights reserved
// Released under the MIT License https://raw.github.com/mit-cml/app-inventor/master/mitlicense.txt

package com.google.appinventor.server.properties.json;

import com.google.common.collect.Maps;
import com.google.appinventor.shared.properties.json.JSONObject;
import com.google.appinventor.shared.properties.json.JSONValue;

import org.json.JSONException;

import java.util.Iterator;
import java.util.Map;

/**
 * Implementation of {@link JSONObject} using the json.org JSON library.
 *
 */
final class ServerJsonObject extends ServerJsonValue implements JSONObject {

    private final Map<String, JSONValue> properties;

    @SuppressWarnings("unchecked")
    public ServerJsonObject(org.json.JSONObject object) {
        properties = Maps.newHashMap();
        Iterator<String> keys = object.keys();
        while (keys.hasNext()) {
            String key = keys.next();
            try {
                properties.put(key, ServerJsonValue.convert(object.get(key)));
            } catch (JSONException e) {
                // Cannot happen!
                throw new AssertionError(e);
            }
        }
    }

    @Override
    public Map<String, JSONValue> getProperties() {
        return properties;
    }

    @Override
    public JSONValue get(String key) {
        return properties.get(key);
    }

    @Override
    public String toJson() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        String separator = "";
        for (Map.Entry<String, JSONValue> entry : properties.entrySet()) {
            sb.append(separator).append("\"").append(entry.getKey()).append("\":");
            sb.append(entry.getValue().toJson());
            separator = ",";
        }
        sb.append("}");
        return sb.toString();
    }
}