java - 使用 aws lambda native 读取文本文件

Question

我有一个 quarkus lambda，需要读取几个文本文件。这在制作非 native 版本时效果很好。但是，当我尝试使用 native 版本时，如果找不到文件。我已将文本文件添加到资源和 resources/META-INF.resources 文件夹中，但没有成功。

加载它们的类是

@Component
public class ModulusWeightTableSupplier implements Supplier<List<ModulusWeightTableEntry>>{

    private static final String MODULUS_WEIGHT_TABLE = "/AccountModulus_Weight_Table.txt";

    @Override
    public List<ModulusWeightTableEntry> get(){

        final List<ModulusWeightTableEntry> modulusWeightTable = new ArrayList<>();
        try(final BufferedReader br = new BufferedReader(new InputStreamReader(getClass().getResourceAsStream(MODULUS_WEIGHT_TABLE)))){
            String line;
            while ((line = br.readLine()) != null) {
                final String[] fields = line.split("\\s+");
                modulusWeightTable.add(new ModulusWeightTableEntry(fields));
            }
        }
        catch (final IOException e) {
            throw new TableSupplierRuntimeException("An error occurred loading the modulus weight table or sort code substitution table", e);
        }
        return modulusWeightTable;
    }
}

由于某种原因， native 版本找不到这些文件。我想我缺少一些告诉它包含资源文件夹的东西？现在，在使用 native 版本时，它使用自定义运行时。

2020-06-07 13:15:21,940 ERROR [io.qua.ver.htt.run.QuarkusErrorHandler] (executor-thread-1) HTTP Request to /bank-details-validation/v1/account-validation failed, error id: fcffa89d-efaa-4a26-859d-031cfb3ddbaf-1: org.jboss.resteasy.spi.UnhandledException: java.lang.NullPointerException
        at org.jboss.resteasy.core.ExceptionHandler.handleApplicationException(ExceptionHandler.java:106)
        at org.jboss.resteasy.core.ExceptionHandler.handleException(ExceptionHandler.java:372)
        at org.jboss.resteasy.core.SynchronousDispatcher.writeException(SynchronousDispatcher.java:216)
        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:515)
        at org.jboss.resteasy.core.SynchronousDispatcher.lambda$invoke$4(SynchronousDispatcher.java:259)
        at org.jboss.resteasy.core.SynchronousDispatcher.lambda$preprocess$0(SynchronousDispatcher.java:160)
        at org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:362)
        at org.jboss.resteasy.core.SynchronousDispatcher.preprocess(SynchronousDispatcher.java:163)
        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:245)
        at io.quarkus.resteasy.runtime.standalone.RequestDispatcher.service(RequestDispatcher.java:73)
        at io.quarkus.resteasy.runtime.standalone.VertxRequestHandler.dispatch(VertxRequestHandler.java:123)
        at io.quarkus.resteasy.runtime.standalone.VertxRequestHandler.access$000(VertxRequestHandler.java:36)
        at io.quarkus.resteasy.runtime.standalone.VertxRequestHandler$1.run(VertxRequestHandler.java:87)
        at io.quarkus.runtime.CleanableExecutor$CleaningRunnable.run(CleanableExecutor.java:231)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
        at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:2046)
        at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1578)
        at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1452)
        at org.jboss.threads.DelegatingRunnable.run(DelegatingRunnable.java:29)
        at org.jboss.threads.ThreadLocalResettingRunnable.run(ThreadLocalResettingRunnable.java:29)
        at java.base/java.lang.Thread.run(Thread.java:830)
        at org.jboss.threads.JBossThread.run(JBossThread.java:479)
Caused by: java.lang.NullPointerException
        at java.base/java.io.Reader.<init>(Reader.java:167)
        at java.base/java.io.InputStreamReader.<init>(InputStreamReader.java:72)
        at bankdetailsvalidator.quarkus.supplier.ModulusWeightTableSupplier.get(ModulusWeightTableSupplier.java:32)

Answer 1

如果您要添加外部资源，则需要将它们包含到 native 镜像中。除非您明确告知，否则 native 镜像不包含资源。

在最新的 Quarkus 版本中，您可以使用:

quarkus.native.resources.includes = AccountModulus_Weight_Table.txt

甚至:

quarkus.native.resources.includes = *.txt

或(带有 glob 的**/*.txt)

在旧版本中，您必须执行以下操作:https://quarkus.io/guides/writing-native-applications-tips#including-resources .