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25a8bbe890
This primarily addresses issues with TMCH testing mode and email sending utils. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=143710550
76 lines
3.3 KiB
Java
76 lines
3.3 KiB
Java
// Copyright 2016 The Nomulus Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.config;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Modifier;
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import javax.annotation.concurrent.ThreadSafe;
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/**
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* System property loader of {@link RegistryConfig} instance.
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*
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* <p>This class reflectively loads the Java class defined by the system property
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* {@value #REGISTRY_CONFIG_PROPERTY} whose default value is {@value #REGISTRY_CONFIG_DEFAULT} and
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* can be set in {@code appengine-web.xml}. Once the class is loaded, its constructor is called,
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* passing the {@link RegistryEnvironment} as a single parameter.
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*/
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@ThreadSafe
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@Deprecated // will be replaced by YAML config; see b/33386530 for details
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public final class RegistryConfigLoader {
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public static final String REGISTRY_CONFIG_PROPERTY = "google.registry.config";
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public static final String REGISTRY_CONFIG_DEFAULT =
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"google.registry.config.ProductionRegistryConfigExample";
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static RegistryConfig load(RegistryEnvironment environment) {
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String className = System.getProperty(REGISTRY_CONFIG_PROPERTY, REGISTRY_CONFIG_DEFAULT);
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Class<?> clazz;
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try {
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clazz = Class.forName(className);
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} catch (ClassNotFoundException e) {
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throw new RuntimeException(String.format(
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"Failed to load '%s' as specified by system property '%s'",
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className, REGISTRY_CONFIG_PROPERTY), e);
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}
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if (!RegistryConfig.class.isAssignableFrom(clazz)) {
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throw new RuntimeException(String.format(
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"%s does not implement %s",
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clazz.getSimpleName(), RegistryConfig.class.getSimpleName()));
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}
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@SuppressWarnings("unchecked")
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Class<? extends RegistryConfig> clazzy = (Class<? extends RegistryConfig>) clazz;
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if (!Modifier.isPublic(clazzy.getModifiers())) {
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throw new RuntimeException(String.format(
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"Must be a public class: %s", clazzy.getCanonicalName()));
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}
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Constructor<? extends RegistryConfig> constructor;
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try {
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constructor = clazzy.getConstructor(RegistryEnvironment.class);
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} catch (NoSuchMethodException | SecurityException e) {
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throw new RuntimeException(String.format(
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"Must have a public constructor(RegistryEnvironment): %s", clazzy.getCanonicalName()), e);
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}
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try {
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return constructor.newInstance(environment);
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} catch (InvocationTargetException e) {
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throw new RuntimeException(
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String.format("%s constructor threw an exception", clazzy.getSimpleName()), e);
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} catch (InstantiationException | IllegalAccessException | IllegalArgumentException e) {
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throw new RuntimeException(
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String.format("Failed to instantiate: %s", clazz.getCanonicalName()), e);
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}
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}
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}
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