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Polish JSR-303 detection

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This commit is contained in:
Phillip Webb 2013-08-25 08:19:10 -07:00
parent a08aac6fa5
commit 0d75995aed
1 changed files with 31 additions and 19 deletions
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50
spring-boot/src/main/java/org/springframework/boot/context/properties/ConfigurationPropertiesBindingPostProcessor.java
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@ -17,7 +17,6 @@
package org.springframework.boot.context.properties;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanClassLoaderAware;
import org.springframework.beans.factory.BeanCreationException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
@ -62,12 +61,13 @@ import org.springframework.validation.beanvalidation.LocalValidatorFactoryBean;
* @author Phillip Webb
*/
public class ConfigurationPropertiesBindingPostProcessor implements BeanPostProcessor,
BeanFactoryAware, ResourceLoaderAware, EnvironmentAware, BeanClassLoaderAware,
ApplicationContextAware, InitializingBean, DisposableBean {
BeanFactoryAware, ResourceLoaderAware, EnvironmentAware, ApplicationContextAware,
InitializingBean, DisposableBean {
public static final String VALIDATOR_BEAN_NAME = "configurationPropertiesValidator";
private static final String VALIDATOR_CLASS = "javax.validation.Validator";
private static final String[] VALIDATOR_CLASSES = { "javax.validation.Validator",
"javax.validation.ValidatorFactory" };
private PropertySources propertySources;
@ -87,8 +87,6 @@ public class ConfigurationPropertiesBindingPostProcessor implements BeanPostProc
private Environment environment = new StandardEnvironment();
private ClassLoader beanClassLoader;
private ApplicationContext applicationContext;
/**
@ -127,11 +125,6 @@ public class ConfigurationPropertiesBindingPostProcessor implements BeanPostProc
this.environment = environment;
}
@Override
public void setBeanClassLoader(ClassLoader classLoader) {
this.beanClassLoader = classLoader;
}
@Override
public void setApplicationContext(ApplicationContext applicationContext) {
this.applicationContext = applicationContext;
@ -146,14 +139,9 @@ public class ConfigurationPropertiesBindingPostProcessor implements BeanPostProc
if (this.validator == null) {
this.validator = getOptionalBean(VALIDATOR_BEAN_NAME, Validator.class);
if (this.validator == null
&& ClassUtils.isPresent(VALIDATOR_CLASS, this.beanClassLoader)) {
LocalValidatorFactoryBean validatorToUse = (LocalValidatorFactoryBean) ClassUtils
.forName(LocalValidatorFactoryBean.class.getName(),
this.beanClassLoader).newInstance();
validatorToUse.setApplicationContext(this.applicationContext);
validatorToUse.afterPropertiesSet();
this.validator = validatorToUse;
if (this.validator == null && isJsr303Present()) {
this.validator = new Jsr303ValidatorFactory()
.run(this.applicationContext);
this.ownedValidator = true;
}
}
@ -165,6 +153,15 @@ public class ConfigurationPropertiesBindingPostProcessor implements BeanPostProc
}
}
private boolean isJsr303Present() {
for (String validatorClass : VALIDATOR_CLASSES) {
if (!ClassUtils.isPresent(validatorClass, null)) {
return false;
}
}
return true;
}
@Override
public void destroy() throws Exception {
if (this.ownedValidator) {
@ -331,4 +328,19 @@ public class ConfigurationPropertiesBindingPostProcessor implements BeanPostProc
return this.defaultConversionService;
}
/**
* Factory to create JSR 303 LocalValidatorFactoryBean. Inner class to prevent class
* loader issues.
*/
private static class Jsr303ValidatorFactory {
public Validator run(ApplicationContext applicationContext) {
LocalValidatorFactoryBean validator = new LocalValidatorFactoryBean();
validator.setApplicationContext(applicationContext);
validator.afterPropertiesSet();
return validator;
}
}
}