CAMEL-22686 Add handling of a GenericFile body to DoclingProducer.getInputPath()

[cunningt]

Description

Add handling of a GenericFile case to DoclingProducer.getInputPath - it would allow going directly from camel-file to camel-docling.

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[davsclaus]

You dont need to add camel-file as dependency, but you can check for wrapped file ala

        if (obj instanceof WrappedFile<?> wf) {
            obj = wf.getFile();
        }
        if (obj instanceof File f) {
            filePayload = f;
            inputStream = new FileInputStream(f);
            contentLength = f.length();

You can see how this is done elsewhere such as above from aws, or do a git grep WrappedFile to find code samples.

[davsclaus]

see my comments

[cunningt]

You dont need to add camel-file as dependency, but you can check for wrapped file ala

        if (obj instanceof WrappedFile<?> wf) {
            obj = wf.getFile();
        }
        if (obj instanceof File f) {
            filePayload = f;
            inputStream = new FileInputStream(f);
            contentLength = f.length();

You can see how this is done elsewhere such as above from aws, or do a git grep WrappedFile to find code samples.

Sorry about that - removed the camel-file dependency and used WrappedFile.

[davsclaus]

You cannot type cast directly to File, as WrappedFile can also come from FTP and then its another kind, or azure file that is also type etc. So you need to do
Object f = wf.getFile
if (f instanceof File file) ...