Repository: crunch Updated Branches: refs/heads/master 96ef2d679 -> 9898ee92f
CRUNCH-421 Write Avro PTable from MemPipeline Remove artificial incompatibility for writing Avro PTables from within a MemPipeline. Test case provided by Tom White. Signed-off-by: Tom White <[email protected]> Project: http://git-wip-us.apache.org/repos/asf/crunch/repo Commit: http://git-wip-us.apache.org/repos/asf/crunch/commit/9898ee92 Tree: http://git-wip-us.apache.org/repos/asf/crunch/tree/9898ee92 Diff: http://git-wip-us.apache.org/repos/asf/crunch/diff/9898ee92 Branch: refs/heads/master Commit: 9898ee92fc36fed739201fa0b2593175519b2ab4 Parents: 96ef2d6 Author: Gabriel Reid <[email protected]> Authored: Mon Jun 16 16:42:44 2014 +0200 Committer: Tom White <[email protected]> Committed: Mon Jun 16 15:59:44 2014 +0100 ---------------------------------------------------------------------- .../crunch/io/avro/AvroMemPipelineIT.java | 38 +++++++++++++++++--- .../org/apache/crunch/impl/mem/MemPipeline.java | 2 +- 2 files changed, 34 insertions(+), 6 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/crunch/blob/9898ee92/crunch-core/src/it/java/org/apache/crunch/io/avro/AvroMemPipelineIT.java ---------------------------------------------------------------------- diff --git a/crunch-core/src/it/java/org/apache/crunch/io/avro/AvroMemPipelineIT.java b/crunch-core/src/it/java/org/apache/crunch/io/avro/AvroMemPipelineIT.java index 40224e7..e501373 100644 --- a/crunch-core/src/it/java/org/apache/crunch/io/avro/AvroMemPipelineIT.java +++ b/crunch-core/src/it/java/org/apache/crunch/io/avro/AvroMemPipelineIT.java @@ -21,17 +21,22 @@ import static org.junit.Assert.assertEquals; import java.io.File; import java.io.IOException; import java.io.Serializable; -import java.util.Collections; import java.util.List; +import java.util.Map; import java.util.Set; +import com.google.common.collect.Lists; +import com.google.common.collect.Sets; import org.apache.avro.generic.GenericData; import org.apache.avro.generic.GenericData.Record; -import org.apache.avro.generic.GenericRecord; +import org.apache.crunch.MapFn; import org.apache.crunch.PCollection; +import org.apache.crunch.PTable; +import org.apache.crunch.Pair; import org.apache.crunch.impl.mem.MemPipeline; import org.apache.crunch.io.At; import org.apache.crunch.io.To; +import org.apache.crunch.lib.PTables; import org.apache.crunch.test.Person; import org.apache.crunch.test.TemporaryPath; import org.apache.crunch.test.TemporaryPaths; @@ -42,9 +47,6 @@ import org.junit.Before; import org.junit.Rule; import org.junit.Test; -import com.google.common.collect.Lists; -import com.google.common.collect.Sets; - public class AvroMemPipelineIT implements Serializable { private transient File avroFile; @@ -157,4 +159,30 @@ public class AvroMemPipelineIT implements Serializable { return savedRecord; } + @Test + public void testMemPipelineWithPTable() { + + String writeRecord = "John Doe"; + + final PCollection<String> collection = MemPipeline.typedCollectionOf( + Avros.strings(), + writeRecord); + + PTable<Integer, String> writeCollection = collection.by(new MapFn<String, Integer>() { + @Override + public Integer map(String input) { + return input.length(); + } + }, Avros.ints()); + + writeCollection.write(To.avroFile(avroFile.getAbsolutePath())); + + PCollection<Pair<Integer, String>> readCollection = MemPipeline.getInstance().read( + At.avroFile(avroFile.getAbsolutePath(), + Avros.tableOf(Avros.ints(), Avros.strings()))); + + Map<Integer, String> map = PTables.asPTable(readCollection).asMap().getValue(); + assertEquals(writeRecord, map.get(writeRecord.length())); + } + } http://git-wip-us.apache.org/repos/asf/crunch/blob/9898ee92/crunch-core/src/main/java/org/apache/crunch/impl/mem/MemPipeline.java ---------------------------------------------------------------------- diff --git a/crunch-core/src/main/java/org/apache/crunch/impl/mem/MemPipeline.java b/crunch-core/src/main/java/org/apache/crunch/impl/mem/MemPipeline.java index b3e9c54..42d1ca8 100644 --- a/crunch-core/src/main/java/org/apache/crunch/impl/mem/MemPipeline.java +++ b/crunch-core/src/main/java/org/apache/crunch/impl/mem/MemPipeline.java @@ -203,7 +203,7 @@ public class MemPipeline implements Pipeline { writeSequenceFileFromPCollection(fs, outputPath, collection); } } else { - if (target instanceof AvroFileTarget && !(collection instanceof PTable)) { + if (target instanceof AvroFileTarget){ Path outputPath = new Path(path, "out" + outputIndex + ".avro"); FSDataOutputStream os = fs.create(outputPath); writeAvroFile(os, collection);
