com.tencent.bkrepo.common.service.message.PathMatchingResourceBundleMessageSource.kt Maven / Gradle / Ivy
/*
* Tencent is pleased to support the open source community by making BK-CI 蓝鲸持续集成平台 available.
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package com.tencent.bkrepo.common.service.message
import java.io.IOException
import java.util.Properties
import org.springframework.context.support.ReloadableResourceBundleMessageSource
import org.springframework.core.io.support.PathMatchingResourcePatternResolver
/**
* SpringBoot默认使用基于JDK{@link java.util.ResourceBundle}实现的ResourceBundleMessageSource
* Spring还提供另外一种基于{@link java.util.Properties}实现的ReloadableResourceBundleMessageSource
* 以上两种实现方式从classpath加载properties时，都不支持多个同名文件同时加载，即classpath*方式，因为这种特性属于Spring，JDK本身不支持
* 所以该类实现了支持classpath*方式加载的MessageSource
*/
class PathMatchingResourceBundleMessageSource : ReloadableResourceBundleMessageSource() {
private val resolver = PathMatchingResourcePatternResolver()
override fun refreshProperties(filename: String, propHolder: PropertiesHolder?): PropertiesHolder {
return if (filename.startsWith(PathMatchingResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX)) {
refreshClassPathProperties(filename, propHolder)
} else {
super.refreshProperties(filename, propHolder)
}
}
private fun refreshClassPathProperties(filename: String, propHolder: PropertiesHolder?): PropertiesHolder {
val properties = Properties()
var lastModified: Long = -1
try {
val resources = resolver.getResources(filename + PROPERTIES_SUFFIX)
for (resource in resources) {
val sourcePath: String = resource.uri.toString().replace(PROPERTIES_SUFFIX, "")
val holder = super.refreshProperties(sourcePath, propHolder)
holder.properties?.let { properties.putAll(it) }
if (lastModified < resource.lastModified()) {
lastModified = resource.lastModified()
}
}
} catch (ignored: IOException) {
}
return PropertiesHolder(properties, lastModified)
}
companion object {
private const val PROPERTIES_SUFFIX = ".properties"
}
}