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chore: better code reuse in callback #145

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chore: better code reuse in callback #145

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0fe6c96
better code reuse in callback
alexradzin Jun 30, 2024
b8f333d
fixed indentation
alexradzin Jun 30, 2024
7b45358
Merge branch 'main' into improve-callback-in-DefaultDataFrame
caicancai Nov 1, 2024
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42 changes: 21 additions & 21 deletions datafusion-java/src/main/java/org/apache/arrow/datafusion/DefaultDataFrame.java
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@

import java.nio.file.Path;
import java.util.concurrent.CompletableFuture;
import java.util.function.Consumer;
import org.apache.arrow.memory.BufferAllocator;
import org.apache.arrow.vector.ipc.ArrowFileReader;
import org.apache.arrow.vector.ipc.ArrowReader;
Expand Down Expand Up @@ -69,13 +70,7 @@ public CompletableFuture<Void> show() {
DataFrames.showDataframe(
runtimePointer,
dataframe,
(String errString) -> {
if (ErrorUtil.containsError(errString)) {
future.completeExceptionally(new RuntimeException(errString));
} else {
future.complete(null);
}
});
new RuntimeExceptionCallback(future));
return future;
}

Expand All @@ -89,13 +84,7 @@ public CompletableFuture<Void> writeParquet(Path path) {
runtimePointer,
dataframe,
path.toAbsolutePath().toString(),
(String errString) -> {
if (ErrorUtil.containsError(errString)) {
future.completeExceptionally(new RuntimeException(errString));
} else {
future.complete(null);
}
});
new RuntimeExceptionCallback(future));
return future;
}

Expand All @@ -109,13 +98,7 @@ public CompletableFuture<Void> writeCsv(Path path) {
runtimePointer,
dataframe,
path.toAbsolutePath().toString(),
(String errString) -> {
if (ErrorUtil.containsError(errString)) {
future.completeExceptionally(new RuntimeException(errString));
} else {
future.complete(null);
}
});
new RuntimeExceptionCallback(future));
return future;
}

Expand All @@ -130,4 +113,21 @@ public TableProvider intoView() {
void doClose(long pointer) {
DataFrames.destroyDataFrame(pointer);
}

private static class RuntimeExceptionCallback implements Consumer<String> {
private final CompletableFuture<?> future;

private RuntimeExceptionCallback(CompletableFuture<?> future) {
this.future = future;
}

@Override
public void accept(String errString) {
if (ErrorUtil.containsError(errString)) {
future.completeExceptionally(new RuntimeException(errString));
} else {
future.complete(null);
}
}
}
}
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