org.chromium.sdk.tests.internal.JsonBuilderUtil.java Source code

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Here is the source code for org.chromium.sdk.tests.internal.JsonBuilderUtil.java

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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

package org.chromium.sdk.tests.internal;

import java.util.Arrays;

import org.chromium.sdk.internal.JsonUtil;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.ParseException;

/**
 * Helper class for creating JSON object in functional style. Introduces
 * "pseudo-json" notation, which is normal JSON with single quotes instead of
 * double quotes -- such notation is easier to be used from Java.
 */
public class JsonBuilderUtil {
    public static JsonPropertyTemp jsonProperty(String name, String value) {
        return new JsonPropertyTemp(name, value);
    }

    public static JsonPropertyTemp jsonProperty(String name, Number value) {
        return new JsonPropertyTemp(name, value);
    }

    public static JsonPropertyTemp jsonProperty(String name, Boolean value) {
        return new JsonPropertyTemp(name, value);
    }

    public static JsonPropertyTemp jsonProperty(String name, JSONObject value) {
        return new JsonPropertyTemp(name, value);
    }

    public static JsonPropertyTemp jsonProperty(String name, JSONArray value) {
        return new JsonPropertyTemp(name, value);
    }

    @SuppressWarnings("unchecked")
    public static JSONObject jsonObject(JsonPropertyTemp... properties) {
        JSONObject object = new JSONObject();
        for (JsonPropertyTemp pr1 : properties) {
            object.put(pr1.getName(), pr1.getValue());
        }
        return object;
    }

    /**
     * Constructs json object from pseudo-json text
     */
    public static JSONObject jsonObject(String pseudoJsonText) {
        String jsonText = "{" + convertToRealJson(pseudoJsonText) + "}";
        try {
            return JsonUtil.jsonObjectFromJson(jsonText);
        } catch (ParseException e) {
            throw new RuntimeException("Failed to parse json", e);
        }
    }

    @SuppressWarnings("unchecked")
    public static JSONArray jsonArray(JSONObject... objects) {
        JSONArray array = new JSONArray();
        array.addAll(Arrays.asList(objects));
        return array;
    }

    /**
     * Converts pseudo-json notation to normal json notation.
     * 
     * @param pseudoJson
     *            json notation with single quotes in place of double quotes
     * @return regular json notation
     */
    public static String convertToRealJson(String pseudoJson) {
        return pseudoJson.replace('\'', '"');
    }

    /**
     * Temporary class that represents JavaScript property. User is not supposed
     * to use it in any way, but simply to pass it back to
     * {@link JsonBuilderUtil}.
     */
    public static class JsonPropertyTemp {
        JsonPropertyTemp(String name, Object value) {
            this.name = name;
            this.value = value;
        }

        String getName() {
            return name;
        }

        Object getValue() {
            return value;
        }

        private final String name;
        private final Object value;
    }

}