/*
* Copyright (C) 2014 SCVNGR, Inc. d/b/a LevelUp
*
* Licensed 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.
*/
package com.scvngr.levelup.core.model.factory.json;
import android.support.annotation.NonNull;
import com.scvngr.levelup.core.annotation.JsonValueType;
import com.scvngr.levelup.core.annotation.JsonValueType.JsonType;
import com.scvngr.levelup.core.annotation.LevelUpApi;
import com.scvngr.levelup.core.annotation.LevelUpApi.Contract;
import com.scvngr.levelup.core.annotation.VisibleForTesting;
import com.scvngr.levelup.core.annotation.VisibleForTesting.Visibility;
import com.scvngr.levelup.core.model.Error;
import com.scvngr.levelup.core.model.util.JsonUtils;
import net.jcip.annotations.Immutable;
import org.json.JSONException;
import org.json.JSONObject;
/**
* Class that creates {@link Error}s from JSON.
*/
@LevelUpApi(contract = Contract.DRAFT)
public final class ErrorJsonFactory extends AbstractJsonModelFactory<Error> {
/**
* Constructor.
*/
public ErrorJsonFactory() {
super(JsonKeys.MODEL_ROOT);
}
@Override
@NonNull
protected Error createFrom(@NonNull final JSONObject json) throws JSONException {
final String code = JsonUtils.optString(json, JsonKeys.CODE);
final String message = json.getString(JsonKeys.MESSAGE);
final String object = JsonUtils.optString(json, JsonKeys.OBJECT);
final String property = JsonUtils.optString(json, JsonKeys.PROPERTY);
return new Error(code, message, object, property);
}
/**
* All of the keys in the JSON representation of this model.
*/
@VisibleForTesting(visibility = Visibility.PRIVATE)
@Immutable
public static final class JsonKeys {
/**
* The key under which this model can be nested.
*/
@JsonValueType(JsonType.JSON_OBJECT)
@NonNull
public static final String MODEL_ROOT = "error";
/**
* The key in JSON where the error code can be parsed.
*/
@JsonValueType(JsonType.STRING)
@NonNull
public static final String CODE = "code";
/**
* The key in JSON where the error message can be parsed.
*/
@JsonValueType(JsonType.STRING)
@NonNull
public static final String MESSAGE = "message";
/**
* The key in JSON where the error object can be parsed.
*/
@JsonValueType(JsonType.STRING)
@NonNull
public static final String OBJECT = "object";
/**
* The key in JSON where the error object property can be parsed.
*/
@JsonValueType(JsonType.STRING)
@NonNull
public static final String PROPERTY = "property";
/**
* Private constructor prevents instantiation.
*
*
* @throws UnsupportedOperationException because this class cannot be instantiated.
*/
private JsonKeys() {
throw new UnsupportedOperationException("This class is non-instantiable");
}
}
}