PointerOrLocalIdEncoder.java

/*
 * Copyright (c) 2015-present, Parse, LLC.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */
package com.parse;

import org.json.JSONException;
import org.json.JSONObject;

/**
 * Encodes {@link ParseObjects} as pointers. If the object does not have an objectId, uses a
 * local id.
 */
/** package */ class PointerOrLocalIdEncoder extends ParseEncoder {

  // This class isn't really a Singleton, but since it has no state, it's more efficient to get the
  // default instance.
  private static final PointerOrLocalIdEncoder INSTANCE = new PointerOrLocalIdEncoder();
  public static PointerOrLocalIdEncoder get() {
    return INSTANCE;
  }

  @Override
  public JSONObject encodeRelatedObject(ParseObject object) {
    JSONObject json = new JSONObject();
    try {
      if (object.getObjectId() != null) {
        json.put("__type", "Pointer");
        json.put("className", object.getClassName());
        json.put("objectId", object.getObjectId());
      } else {
        json.put("__type", "Pointer");
        json.put("className", object.getClassName());
        json.put("localId", object.getOrCreateLocalId());
      }
    } catch (JSONException e) {
      // This should not happen
      throw new RuntimeException(e);
    }
    return json;
  }
}