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* fix: core config validation * fix: core config validation * fix: PR comments * fix: PR comments * fix: test * fix: startup test * fix: using ConfigMapper * fix: test * fix: config mapper * fix: core config
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| /* | ||
| * Copyright (c) 2023, VRAI Labs and/or its affiliates. All rights reserved. | ||
| * | ||
| * This software is licensed under the Apache License, Version 2.0 (the | ||
| * "License") as published by the Apache Software Foundation. | ||
| * | ||
| * 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 io.supertokens.utils; | ||
|
|
||
| import com.google.gson.JsonElement; | ||
| import com.google.gson.JsonNull; | ||
| import com.google.gson.JsonObject; | ||
| import com.fasterxml.jackson.annotation.JsonProperty; | ||
| import com.fasterxml.jackson.annotation.JsonAlias; | ||
| import io.supertokens.pluginInterface.exceptions.InvalidConfigException; | ||
|
|
||
| import java.lang.annotation.Annotation; | ||
| import java.lang.reflect.Field; | ||
| import java.util.Map; | ||
|
|
||
| public class ConfigMapper { | ||
| public static <T> T mapConfig(JsonObject config, Class<T> clazz) throws InvalidConfigException { | ||
| try { | ||
| T result = clazz.newInstance(); | ||
| for (Map.Entry<String, JsonElement> entry : config.entrySet()) { | ||
| Field field = findField(clazz, entry.getKey()); | ||
| if (field != null) { | ||
| setValue(result, field, entry.getValue()); | ||
| } | ||
| } | ||
| return result; | ||
| } catch (InstantiationException | IllegalAccessException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
|
||
| private static <T> Field findField(Class<T> clazz, String key) { | ||
| Field[] fields = clazz.getDeclaredFields(); | ||
|
|
||
| for (Field field : fields) { | ||
| if (field.getName().equals(key)) { | ||
| return field; | ||
| } | ||
|
|
||
| // Check for JsonProperty annotation | ||
| JsonProperty jsonProperty = field.getAnnotation(JsonProperty.class); | ||
| if (jsonProperty != null && jsonProperty.value().equals(key)) { | ||
| return field; | ||
| } | ||
|
|
||
| // Check for JsonAlias annotation | ||
| JsonAlias jsonAlias = field.getAnnotation(JsonAlias.class); | ||
| if (jsonAlias != null) { | ||
| for (String alias : jsonAlias.value()) { | ||
| if (alias.equals(key)) { | ||
| return field; | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return null; // Field not found | ||
| } | ||
|
|
||
| private static <T> void setValue(T object, Field field, JsonElement value) throws InvalidConfigException { | ||
| boolean foundAnnotation = false; | ||
| for (Annotation a : field.getAnnotations()) { | ||
| if (a.toString().contains("JsonProperty")) { | ||
| foundAnnotation = true; | ||
| break; | ||
| } | ||
| } | ||
|
|
||
| if (!foundAnnotation) { | ||
| return; | ||
| } | ||
|
|
||
| field.setAccessible(true); | ||
| Object convertedValue = convertJsonElementToTargetType(value, field.getType(), field.getName()); | ||
| if (convertedValue != null) { | ||
| try { | ||
| field.set(object, convertedValue); | ||
| } catch (IllegalAccessException e) { | ||
| throw new IllegalStateException("should never happen"); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private static Object convertJsonElementToTargetType(JsonElement value, Class<?> targetType, String fieldName) | ||
| throws InvalidConfigException { | ||
| // If the value is JsonNull, return null for any type | ||
| if (value instanceof JsonNull || value == null) { | ||
| return null; | ||
| } | ||
|
|
||
| try { | ||
| if (targetType == String.class) { | ||
| return value.getAsString(); | ||
| } else if (targetType == Integer.class || targetType == int.class) { | ||
| if (value.getAsDouble() == (double) value.getAsInt()) { | ||
| return value.getAsInt(); | ||
| } | ||
| } else if (targetType == Long.class || targetType == long.class) { | ||
| if (value.getAsDouble() == (double) value.getAsLong()) { | ||
| return value.getAsLong(); | ||
| } | ||
| } else if (targetType == Double.class || targetType == double.class) { | ||
| return value.getAsDouble(); | ||
| } else if (targetType == Float.class || targetType == float.class) { | ||
| return value.getAsFloat(); | ||
| } else if (targetType == Boolean.class || targetType == boolean.class) { | ||
| // Handle boolean conversion from strings like "true", "false" | ||
| return handleBooleanConversion(value, fieldName); | ||
| } | ||
| } catch (NumberFormatException e) { | ||
| // do nothing, will fall into InvalidConfigException | ||
| } | ||
|
|
||
| // Throw an exception for unsupported conversions | ||
| throw new InvalidConfigException("'" + fieldName + "' must be of type " + targetType.getSimpleName()); | ||
| } | ||
|
|
||
| private static Object handleBooleanConversion(JsonElement value, String fieldName) throws InvalidConfigException { | ||
| // Handle boolean conversion from strings like "true", "false" | ||
| if (value.isJsonPrimitive() && value.getAsJsonPrimitive().isString()) { | ||
| String stringValue = value.getAsString().toLowerCase(); | ||
| if (stringValue.equals("true")) { | ||
| return true; | ||
| } else if (stringValue.equals("false")) { | ||
| return false; | ||
| } | ||
| } else if (value.isJsonPrimitive() && value.getAsJsonPrimitive().isBoolean()) { | ||
| return value.getAsBoolean(); | ||
| } | ||
|
|
||
| // Throw an exception for unsupported conversions | ||
| throw new InvalidConfigException("'" + fieldName + "' must be of type boolean"); | ||
| } | ||
| } |
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