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https://issues.apache.org/jira/browse/AVRO-1487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16462620#comment-16462620
]
Frank Grimes commented on AVRO-1487:
------------------------------------
FWIW, I was able to work around the problem locally by applying the following
patch:
{code:java}
diff --git
a/lang/java/trevni/core/src/main/java/org/apache/trevni/OutputBuffer.java
b/lang/java/trevni/core/src/main/java/org/apache/trevni/OutputBuffer.java
index 41174fbd..d32947ee 100644
--- a/lang/java/trevni/core/src/main/java/org/apache/trevni/OutputBuffer.java
+++ b/lang/java/trevni/core/src/main/java/org/apache/trevni/OutputBuffer.java
@@ -55,7 +55,7 @@ class OutputBuffer extends ByteArrayOutputStream {
case DOUBLE:
writeDouble((Double)value); break;
case STRING:
- writeString((String)value); break;
+ writeString((String)value.toString()); break;
case BYTES:
if (value instanceof ByteBuffer)
writeBytes((ByteBuffer)value);
{code}
> avro-tools totrevni throwing 'org.apache.avro.util.Utf8 cannot be cast to
> java.lang.String'
> -------------------------------------------------------------------------------------------
>
> Key: AVRO-1487
> URL: https://issues.apache.org/jira/browse/AVRO-1487
> Project: Avro
> Issue Type: Bug
> Components: trevni
> Affects Versions: 1.7.6
> Environment: Linux 2.6.32-431.5.1.el6.x86_64, java version "1.7.0_51"
> Reporter: Mina Naguib
> Priority: Critical
>
> I'm not sure if this is expected to fail or this is a bug - I was excited to
> try trevni but got:
> $ java -jar avro-tools-1.7.6.jar totrevni part-r-00000.avro
> part-r-00000.trevni
> Mar 25, 2014 11:01:11 AM org.apache.hadoop.util.NativeCodeLoader <clinit>
> WARNING: Unable to load native-hadoop library for your platform... using
> builtin-java classes where applicable
> Exception in thread "main" java.lang.ClassCastException:
> org.apache.avro.util.Utf8 cannot be cast to java.lang.String
> at org.apache.trevni.OutputBuffer.writeValue(OutputBuffer.java:58)
> at
> org.apache.trevni.ColumnOutputBuffer.writeValue(ColumnOutputBuffer.java:64)
> at
> org.apache.trevni.ColumnFileWriter.writeValue(ColumnFileWriter.java:113)
> at
> org.apache.trevni.avro.AvroColumnWriter.write(AvroColumnWriter.java:104)
> at
> org.apache.trevni.avro.AvroColumnWriter.write(AvroColumnWriter.java:142)
> at
> org.apache.trevni.avro.AvroColumnWriter.write(AvroColumnWriter.java:111)
> at
> org.apache.trevni.avro.AvroColumnWriter.write(AvroColumnWriter.java:88)
> at org.apache.avro.tool.ToTrevniTool.run(ToTrevniTool.java:76)
> at org.apache.avro.tool.Main.run(Main.java:84)
> at org.apache.avro.tool.Main.main(Main.java:73)
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