无法使用自定义端点配置从 S3 进行轮询

Question

我尝试使用 spring-integration-aws 从 S3 存储桶中轮询以触发 spring-batch 作业。我的 S3 存储桶没有托管在 Amazon 上，而是在本地 minio 服务器上，所以我得到了一个自定义配置：

    @Bean
    public AmazonS3 amazonS3(ConfigProperties configProperties) {

        return AmazonS3ClientBuilder.standard()
                .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration("http://localhost:9001","eu-west-0")) // Region matches with minio region
                .withPathStyleAccessEnabled(configProperties.getS3().isPathStyle())
                .withCredentials(new AWSStaticCredentialsProvider(new BasicAWSCredentials(
                        configProperties.getS3().getAccessKey(), configProperties.getS3().getSecretKey()
                ))).build();
    }

我是这样定义 IntegrationFlow 的：

  @Bean
    public IntegrationFlow s3InboundFlow() {

        S3RemoteFileTemplate template = new S3RemoteFileTemplate(new S3SessionFactory(amazonS3));
        S3StreamingMessageSource s3StreamingMessageSource = new S3StreamingMessageSource(template);
        s3StreamingMessageSource.setRemoteDirectory(String.format("%s/OUT/", configProperties.getS3().getBucketDataPath()));

        return IntegrationFlows.from(s3StreamingMessageSource, configurer -> configurer
                .id("s3InboundAdapter")
                .autoStartup(true)
                .poller(Pollers.fixedDelay(POLL, TimeUnit.SECONDS)))
                .handle(jobLaunchingGateway(jobRepository)) // Launch a spring-batch job
                .get();
    }

问题是，当轮询发生时，我收到以下错误：

2020-03-30 19:05:21,008 ERROR [scheduling-1] org.springframework.integration.handler.LoggingHandler:  org.springframework.messaging.MessagingException: nested exception is java.lang.IllegalStateException: S3 client with invalid S3 endpoint configured: localhost:9001
    at org.springframework.integration.endpoint.AbstractPollingEndpoint.pollForMessage(AbstractPollingEndpoint.java:342)
    at org.springframework.integration.endpoint.AbstractPollingEndpoint.lambda$null(AbstractPollingEndpoint.java:275)
    at org.springframework.integration.util.ErrorHandlingTaskExecutor.lambda$execute[=12=](ErrorHandlingTaskExecutor.java:57)
    at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:50)
    at org.springframework.integration.util.ErrorHandlingTaskExecutor.execute(ErrorHandlingTaskExecutor.java:55)
    at org.springframework.integration.endpoint.AbstractPollingEndpoint.lambda$createPoller(AbstractPollingEndpoint.java:272)
    at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
    at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:93)
    at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.IllegalStateException: S3 client with invalid S3 endpoint configured: localhost:9001
    at com.amazonaws.services.s3.AmazonS3Client.getRegion(AmazonS3Client.java:4270)
    at org.springframework.integration.aws.support.S3Session.getHostPort(S3Session.java:228)
    at org.springframework.integration.file.remote.AbstractRemoteFileStreamingMessageSource.doReceive(AbstractRemoteFileStreamingMessageSource.java:214)
    at org.springframework.integration.endpoint.AbstractMessageSource.receive(AbstractMessageSource.java:167)
    at org.springframework.integration.endpoint.SourcePollingChannelAdapter.receiveMessage(SourcePollingChannelAdapter.java:250)
    at org.springframework.integration.endpoint.AbstractPollingEndpoint.doPoll(AbstractPollingEndpoint.java:359)
    at org.springframework.integration.endpoint.AbstractPollingEndpoint.pollForMessage(AbstractPollingEndpoint.java:328)

发生这种情况是因为在接收文件时，spring-integration-aws 中设置了一些 header :

AbstractRemoteFileStreamingMessageSource.java

return getMessageBuilderFactory()
            .withPayload(session.readRaw(remotePath))
            .setHeader(IntegrationMessageHeaderAccessor.CLOSEABLE_RESOURCE, session)
            .setHeader(FileHeaders.REMOTE_DIRECTORY, file.getRemoteDirectory())
            .setHeader(FileHeaders.REMOTE_FILE, file.getFilename())
            .setHeader(FileHeaders.REMOTE_HOST_PORT, session.getHostPort())
            .setHeader(FileHeaders.REMOTE_FILE_INFO,
                                    this.fileInfoJson ? file.toJson() : file);

REMOTE_HOST_PORT header 设置感谢 getHostPort() 方法。 S3Session.java中的getHostPort()调用getRegion()方法

AmazonS3Client 中的 getRegion() 方法不检查用户是否在 signing region 字段中设置了值。它只检查主机是否匹配 "amazonaws.com" 模式。

@Override
    public String getHostPort() {
        Region region = this.amazonS3.getRegion().toAWSRegion();
        return String.format("%s.%s.%s:%d", AmazonS3.ENDPOINT_PREFIX, region.getName(), region.getDomain(), 443);
    }

   @Override
    public synchronized Region getRegion() {
        String authority = super.endpoint.getAuthority();
        if (Constants.S3_HOSTNAME.equals(authority)) {
            return Region.US_Standard;
        } else {
            Matcher m = Region.S3_REGIONAL_ENDPOINT_PATTERN.matcher(authority);
            if (m.matches()) {
                return Region.fromValue(m.group(1));
            } else {
                throw new IllegalStateException(
                    "S3 client with invalid S3 endpoint configured: " + authority);
            }
        }
    }

如何使用自定义端点配置从 S3 进行轮询？为什么 getHostPort() 方法不检查 signing region 值？是否可以解决此问题？

Answer 1

是的，可以解决。您只需将 S3SessionFactory 扩展到 return S3Session 的扩展，并为您的自定义端点覆盖 getHostPort() 方法。

public class MyS3SessionFactory extends S3SessionFactory {

    private MyS3Session s3Session;

    @Override
    public S3Session getSession() {
        return s3Session;
    }

    public MyS3SessionFactory(AmazonS3 amazonS3) {
        super(amazonS3);
        Assert.notNull(amazonS3, "'amazonS3' must not be null.");
        this.s3Session = new MyS3Session(amazonS3);
    }
}

public class MyS3Session extends S3Session {

    public MyS3Session(AmazonS3 amazonS3) {
        super(amazonS3);
    }

    @Override
    public String getHostPort() {
        return "";
    }
}

让我们讨论一下您提出的问题的可能解决方案：https://github.com/spring-projects/spring-integration-aws/issues/160 !

无法使用自定义端点配置从 S3 进行轮询

Can't poll from S3 with a custom endpoint configuration

java

amazon-s3

spring-integration

minio

spring-integration-aws