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https://issues.apache.org/jira/browse/CAMEL-16252?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17290978#comment-17290978
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Omar Al-Safi commented on CAMEL-16252:
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Hi [~mueller110],
How do you enable the stream caching, can you please share with me DSL
code/steps that have you taken here? The way I see it in
[FileInputStreamCache|https://github.com/apache/camel/blob/e53235ba80bb6ad43e786380edb207f526b105bc/core/camel-support/src/main/java/org/apache/camel/converter/stream/FileInputStreamCache.java],
it doesn't support mark operation.
The issue is, the {{InputStream}} implementation that is required by Azure SDK
needs to implement both {{mark}} and {{reset}} and hence throwing this
exception before processing the input stream.
> camel-azure-storage-blob 3.7.0 stream caching bug
> -------------------------------------------------
>
> Key: CAMEL-16252
> URL: https://issues.apache.org/jira/browse/CAMEL-16252
> Project: Camel
> Issue Type: Bug
> Components: camel-azure
> Affects Versions: 3.7.0
> Reporter: Christian Müller
> Priority: Major
>
> Already asked the question in the mailing list. *Claus Ibsen stated that this
> is actually a bug:*
> *Ad 1)*
> *Yes that seems like a little bug. You are welcome to create a JIRA ticket.*
> Here is my description of the bug:
> <dependency>
> <groupId>org.apache.camel.springboot</groupId>
> <artifactId>camel-azure-storage-blob-starter</artifactId>
> <version>3.7.0</version>
> </dependency>
> We are currently trying to integrate azure cloud by using the
> *camel-azure-storage-blob* component. Everything works fine until we activate
> *stream caching* and camel starts to spool the payload. In this case we get
> the following error:
> Caused by: java.lang.IllegalArgumentException: InputStream of body exchange
> does not support mark/rest operations.
> at
> org.apache.camel.component.azure.storage.blob.BlobStreamAndLength.createBlobStreamAndLengthFromExchangeBody(BlobStreamAndLength.java:52)
> at
> org.apache.camel.component.azure.storage.blob.operations.BlobOperations.uploadBlockBlob(BlobOperations.java:181)
> I have looked into the source and think that the component does not load the
> stream properly from the FileInputStreamCache object.
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