kpeck-north opened a new issue, #801:
URL: https://github.com/apache/arrow-java/issues/801
### Describe the bug, including details regarding any error messages,
version, and platform.
I have all the dependencies in place, code compiles just fine but when I run
it and attempt to parse from an arrow stream like this (or using any of the
parsers like from a file)
val df = DataFrame.readArrowFeather(channel.toInputStream(null))
I always get
Caused by: java.lang.RuntimeException: No DefaultAllocationManager found on
classpath. Can't allocate Arrow buffers. Please consider adding
arrow-memory-netty or arrow-memory-unsafe as a dependency.
Same for
val rootAllocator = RootAllocator()
val fileInputStream = FileInputStream(File(filepath))
val arrowReader = ArrowStreamReader(fileInputStream, rootAllocator)
Asking Gradle for my arrow dependencies I see
| +--- org.jetbrains.kotlinx:dataframe-arrow:1.0.0-dev-7570
| | +--- org.apache.arrow:arrow-vector:18.1.0
| | | +--- org.apache.arrow:arrow-format:18.1.0
| | | +--- org.apache.arrow:arrow-memory-core:18.1.0
| | +--- org.apache.arrow:arrow-format:18.1.0 (*)
| | +--- org.apache.arrow:arrow-memory-unsafe:18.1.0
| | | \--- org.apache.arrow:arrow-memory-core:18.1.0 (*)
+--- org.jetbrains.kotlinx:dataframe-arrow:1.0.0-dev-7570 (*)
+--- org.apache.arrow:arrow-memory-unsafe:18.1.0 (*)
This happens even if I don't use org.jetbrains.kotlinx.dataframe and just
call the Apache Arrow parser directly as seen in second code example above.
I have tried adding both arrow-memory-unsage and arrow-memory-netty with the
same result. I have been beating my head against a wall for the last few days.
Is Android supported with this library? The data from the server comes to me in
arrow-stream format so I need to be able to parse it to shows charts.
I have been able to parse the data just fine with Python and the web team is
parsing it as well. I need to do this for Native Android and Native iOS.
### Component(s)
Integration
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