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Show a better error message when the .proto descriptor is not available #1493

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Show a better error message when the .proto descriptor is not available #1493

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7 changes: 7 additions & 0 deletions impl/grpc/src/main/java/io/serverlessworkflow/impl/executors/grpc/FileDescriptorReader.java
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Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,13 @@ static FileDescriptorContext readDescriptor(ExternalResourceHandler externalReso

try (InputStream inputStream = externalResourceHandler.open()) {

if (inputStream == null) {
throw new IllegalStateException(
"Could not read gRPC proto descriptor resource '"
+ externalResourceHandler.name()
+ "'. Verify the path is correct and that the resource is available.");
}
Comment on lines +44 to +49

Path protoFile = grpcDir.resolve(externalResourceHandler.name());
if (!Files.exists(protoFile)) {
Files.createDirectories(protoFile);
Comment on lines +49 to 53
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