Andy Wilkinson
2 years ago
parent
bde06a3115
commit
4f3180540c
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/*
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* Copyright 2012-2022 the original author or authors.
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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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* https://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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*/
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package org.springframework.boot.testsupport.mock;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.concurrent.atomic.AtomicInteger;
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import org.springframework.core.io.support.SpringFactoriesLoader;
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/**
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* Simple mock {@link SpringFactoriesLoader} implementation that can be used for testing
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* purposes.
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*
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* @author Phillip Webb
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* @since 3.0.0
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*/
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public class MockSpringFactoriesLoader extends SpringFactoriesLoader {
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private final AtomicInteger sequence = new AtomicInteger();
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private final Map<String, List<String>> factories;
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private final Map<String, Object> implementations = new HashMap<>();
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/**
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* Create a new {@link MockSpringFactoriesLoader} instance with the default
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* classloader.
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*/
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public MockSpringFactoriesLoader() {
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this(null);
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}
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/**
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* Create a new {@link MockSpringFactoriesLoader} instance with the given classloader.
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* @param classLoader the classloader to use
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*/
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public MockSpringFactoriesLoader(ClassLoader classLoader) {
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this(classLoader, new LinkedHashMap<>());
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}
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protected MockSpringFactoriesLoader(ClassLoader classLoader, Map<String, List<String>> factories) {
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super(classLoader, factories);
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this.factories = factories;
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}
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@Override
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@SuppressWarnings("unchecked")
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protected <T> T instantiateFactory(String implementationName, Class<T> type, ArgumentResolver argumentResolver,
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FailureHandler failureHandler) {
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if (implementationName.startsWith("!")) {
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Object implementation = this.implementations.get(implementationName);
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if (implementation != null) {
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return (T) implementation;
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}
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}
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return super.instantiateFactory(implementationName, type, argumentResolver, failureHandler);
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}
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/**
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* Add factory implementations to this instance.
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* @param factoryType the factory type class
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* @param factoryImplementations the implementation classes
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* @param <T> the factory type
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* @return {@code this}, to facilitate method chaining
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*/
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@SafeVarargs
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public final <T> MockSpringFactoriesLoader add(Class<T> factoryType, Class<? extends T>... factoryImplementations) {
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for (Class<? extends T> factoryImplementation : factoryImplementations) {
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add(factoryType.getName(), factoryImplementation.getName());
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}
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return this;
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}
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/**
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* Add factory implementations to this instance.
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* @param factoryType the factory type class name
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* @param factoryImplementations the implementation class names
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* @return {@code this}, to facilitate method chaining
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*/
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public MockSpringFactoriesLoader add(String factoryType, String... factoryImplementations) {
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List<String> implementations = this.factories.computeIfAbsent(factoryType, (key) -> new ArrayList<>());
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for (String factoryImplementation : factoryImplementations) {
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implementations.add(factoryImplementation);
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}
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return this;
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}
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/**
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* Add factory instances to this instance.
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* @param factoryType the factory type class
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* @param factoryInstances the implementation instances to add
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* @param <T> the factory type
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* @return {@code this}, to facilitate method chaining
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*/
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@SuppressWarnings("unchecked")
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public <T> MockSpringFactoriesLoader addInstance(Class<T> factoryType, T... factoryInstances) {
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return addInstance(factoryType.getName(), factoryInstances);
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}
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/**
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* Add factory instances to this instance.
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* @param factoryType the factory type class name
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* @param factoryInstance the implementation instances to add
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* @param <T> the factory instance type
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* @return {@code this}, to facilitate method chaining
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*/
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@SuppressWarnings("unchecked")
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public <T> MockSpringFactoriesLoader addInstance(String factoryType, T... factoryInstance) {
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List<String> implementations = this.factories.computeIfAbsent(factoryType, (key) -> new ArrayList<>());
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for (T factoryImplementation : factoryInstance) {
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String reference = "!" + factoryType + ":" + factoryImplementation.getClass().getName()
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+ this.sequence.getAndIncrement();
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implementations.add(reference);
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this.implementations.put(reference, factoryImplementation);
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}
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return this;
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}
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}
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@ -1,20 +0,0 @@
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/*
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* Copyright 2012-2022 the original author or authors.
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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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* https://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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*/
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/**
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* Mock implementations of commonly used classes.
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*/
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package org.springframework.boot.testsupport.mock;
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