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

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Here is the source code for com.google.appinventor.server.properties.json.ServerJsonArray.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.Lists;
import com.google.appinventor.shared.properties.json.JSONArray;
import com.google.appinventor.shared.properties.json.JSONValue;

import org.json.JSONException;

import java.util.List;

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

    private final List<JSONValue> elements;

    public ServerJsonArray(org.json.JSONArray array) {
        int size = array.length();
        elements = Lists.newArrayListWithCapacity(size);
        for (int i = 0; i < size; i++) {
            try {
                elements.add(ServerJsonValue.convert(array.get(i)));
            } catch (JSONException e) {
                // Cannot happen
                throw new AssertionError(e);
            }
        }
    }

    @Override
    public List<JSONValue> getElements() {
        return elements;
    }

    @Override
    public int size() {
        return elements.size();
    }

    @Override
    public JSONValue get(int index) {
        return elements.get(index);
    }

    @Override
    public String toJson() {
        StringBuilder sb = new StringBuilder();
        sb.append("[");
        String separator = "";
        for (JSONValue value : elements) {
            sb.append(separator).append(value.toJson());
            separator = ",";
        }
        sb.append("]");
        return sb.toString();
    }
}