org.springframework.test.annotation.ProfileValueUtils Maven / Gradle / Ivy
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/*
* Copyright 2002-2018 the original author or authors.
*
* 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 org.springframework.test.annotation;
import java.lang.reflect.Method;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.core.annotation.AnnotatedElementUtils;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
import org.springframework.util.ObjectUtils;
import org.springframework.util.ReflectionUtils;
import org.springframework.util.StringUtils;
/**
* General utility methods for working with profile values.
*
* @author Sam Brannen
* @author Juergen Hoeller
* @since 2.5
* @see ProfileValueSource
* @see ProfileValueSourceConfiguration
* @see IfProfileValue
*/
public abstract class ProfileValueUtils {
private static final Log logger = LogFactory.getLog(ProfileValueUtils.class);
/**
* Retrieves the {@link ProfileValueSource} type for the specified
* {@link Class test class} as configured via the
* {@link ProfileValueSourceConfiguration
* @ProfileValueSourceConfiguration} annotation and instantiates a new
* instance of that type.
* If {@link ProfileValueSourceConfiguration
* @ProfileValueSourceConfiguration} is not present on the specified
* class or if a custom {@link ProfileValueSource} is not declared, the
* default {@link SystemProfileValueSource} will be returned instead.
* @param testClass the test class for which the ProfileValueSource should
* be retrieved
* @return the configured (or default) ProfileValueSource for the specified
* class
* @see SystemProfileValueSource
*/
@SuppressWarnings("unchecked")
public static ProfileValueSource retrieveProfileValueSource(Class testClass) {
Assert.notNull(testClass, "testClass must not be null");
Class annotationType = ProfileValueSourceConfiguration.class;
ProfileValueSourceConfiguration config = AnnotatedElementUtils.findMergedAnnotation(testClass, annotationType);
if (logger.isDebugEnabled()) {
logger.debug("Retrieved @ProfileValueSourceConfiguration [" + config + "] for test class [" +
testClass.getName() + "]");
}
Class profileValueSourceType;
if (config != null) {
profileValueSourceType = config.value();
}
else {
profileValueSourceType = (Class) AnnotationUtils.getDefaultValue(annotationType);
Assert.state(profileValueSourceType != null, "No default ProfileValueSource class");
}
if (logger.isDebugEnabled()) {
logger.debug("Retrieved ProfileValueSource type [" + profileValueSourceType + "] for class [" +
testClass.getName() + "]");
}
ProfileValueSource profileValueSource;
if (SystemProfileValueSource.class == profileValueSourceType) {
profileValueSource = SystemProfileValueSource.getInstance();
}
else {
try {
profileValueSource = ReflectionUtils.accessibleConstructor(profileValueSourceType).newInstance();
}
catch (Exception ex) {
if (logger.isWarnEnabled()) {
logger.warn("Could not instantiate a ProfileValueSource of type [" + profileValueSourceType +
"] for class [" + testClass.getName() + "]: using default.", ex);
}
profileValueSource = SystemProfileValueSource.getInstance();
}
}
return profileValueSource;
}
/**
* Determine if the supplied {@code testClass} is enabled in
* the current environment, as specified by the {@link IfProfileValue
* @IfProfileValue} annotation at the class level.
* Defaults to {@code true} if no {@link IfProfileValue
* @IfProfileValue} annotation is declared.
* @param testClass the test class
* @return {@code true} if the test is enabled in the current
* environment
*/
public static boolean isTestEnabledInThisEnvironment(Class testClass) {
IfProfileValue ifProfileValue = AnnotatedElementUtils.findMergedAnnotation(testClass, IfProfileValue.class);
return isTestEnabledInThisEnvironment(retrieveProfileValueSource(testClass), ifProfileValue);
}
/**
* Determine if the supplied {@code testMethod} is enabled in
* the current environment, as specified by the {@link IfProfileValue
* @IfProfileValue} annotation, which may be declared on the test
* method itself or at the class level. Class-level usage overrides
* method-level usage.
*
Defaults to {@code true} if no {@link IfProfileValue
* @IfProfileValue} annotation is declared.
* @param testMethod the test method
* @param testClass the test class
* @return {@code true} if the test is enabled in the current
* environment
*/
public static boolean isTestEnabledInThisEnvironment(Method testMethod, Class testClass) {
return isTestEnabledInThisEnvironment(retrieveProfileValueSource(testClass), testMethod, testClass);
}
/**
* Determine if the supplied {@code testMethod} is enabled in
* the current environment, as specified by the {@link IfProfileValue
* @IfProfileValue} annotation, which may be declared on the test
* method itself or at the class level. Class-level usage overrides
* method-level usage.
*
Defaults to {@code true} if no {@link IfProfileValue
* @IfProfileValue} annotation is declared.
* @param profileValueSource the ProfileValueSource to use to determine if
* the test is enabled
* @param testMethod the test method
* @param testClass the test class
* @return {@code true} if the test is enabled in the current
* environment
*/
public static boolean isTestEnabledInThisEnvironment(ProfileValueSource profileValueSource, Method testMethod,
Class testClass) {
IfProfileValue ifProfileValue = AnnotatedElementUtils.findMergedAnnotation(testClass, IfProfileValue.class);
boolean classLevelEnabled = isTestEnabledInThisEnvironment(profileValueSource, ifProfileValue);
if (classLevelEnabled) {
ifProfileValue = AnnotatedElementUtils.findMergedAnnotation(testMethod, IfProfileValue.class);
return isTestEnabledInThisEnvironment(profileValueSource, ifProfileValue);
}
return false;
}
/**
* Determine if the {@code value} (or one of the {@code values})
* in the supplied {@link IfProfileValue @IfProfileValue} annotation is
* enabled in the current environment.
* @param profileValueSource the ProfileValueSource to use to determine if
* the test is enabled
* @param ifProfileValue the annotation to introspect; may be
* {@code null}
* @return {@code true} if the test is enabled in the current
* environment or if the supplied {@code ifProfileValue} is
* {@code null}
*/
private static boolean isTestEnabledInThisEnvironment(ProfileValueSource profileValueSource,
@Nullable IfProfileValue ifProfileValue) {
if (ifProfileValue == null) {
return true;
}
String environmentValue = profileValueSource.get(ifProfileValue.name());
String[] annotatedValues = ifProfileValue.values();
if (StringUtils.hasLength(ifProfileValue.value())) {
Assert.isTrue(annotatedValues.length == 0, () -> "Setting both the 'value' and 'values' attributes " +
"of @IfProfileValue is not allowed: choose one or the other.");
annotatedValues = new String[] { ifProfileValue.value() };
}
for (String value : annotatedValues) {
if (ObjectUtils.nullSafeEquals(value, environmentValue)) {
return true;
}
}
return false;
}
}