shunping commented on code in PR #38586:
URL: https://github.com/apache/beam/pull/38586#discussion_r3282475407
##########
buildSrc/src/main/groovy/org/apache/beam/gradle/Repositories.groovy:
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@@ -19,9 +19,39 @@
package org.apache.beam.gradle
import org.gradle.api.Project
+import java.net.HttpURLConnection
+import java.net.URL
class Repositories {
+ private static Boolean isMavenAccessible = null
+
+ static synchronized boolean checkMavenCentral() {
+ if (isMavenAccessible != null) {
+ return isMavenAccessible
+ }
+ def testUrl =
"https://repo.maven.apache.org/maven2/org/slf4j/slf4j-api/1.7.2/slf4j-api-1.7.2.pom";
+ try {
+ def url = new URL(testUrl)
+ def connection = (HttpURLConnection) url.openConnection()
+ connection.requestMethod = "GET"
+ connection.setRequestProperty("User-Agent", "Gradle")
+ connection.connectTimeout = 2000
+ connection.readTimeout = 2000
+ connection.useCaches = false
+ isMavenAccessible = (connection.responseCode == 200)
+ } catch (Exception e) {
+ isMavenAccessible = false
+ }
+
+ if (isMavenAccessible) {
+ println "Maven Central is accessible. Using default repositories."
+ } else {
+ println "Maven Central is not accessible. Falling back to Google Maven
Mirror."
+ }
+ return isMavenAccessible
+ }
Review Comment:
Done.
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