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Posted to user@avro.apache.org by Tim Robertson <ti...@gmail.com> on 2010/08/02 17:46:33 UTC

Undefined name: "enum"

Hi all,

I am new to avro, and using it to implement an http RPC transport
layer to allow distributed components to push to a centralised event
log.

I have the following types in my .avpr:

 "types": [
     {"name": "Event", "type": "record",
      "fields": [
          {"name": "message", "type": "string"},
          {
          	"type": "enum",
          	"name": "sourceComponentType",
          	"symbols" : ["OCCURRENCE_HARVESTER", "CHECKLIST_HARVESTER", "USER"]
          },
          {"name": "instanceId", "type": "string"},
          {"name": "sessionId", "type": "string", "default": null},
          {"name": "count", "type": "int", "default": 0},
          {"name": "sourceId", "type": "string"},
          {"name": "userId", "type": "string"},
          {
          	"type": "enum",
          	"name": "level",
          	"symbols" : ["DEBUG", "INFO", "WARN", "ERROR"]
          },
          {"name": "agentId", "type": "string"},
          {
          	"type": "enum",
          	"name": "objectType",
          	"symbols" : ["OCCURRENCE", "NAME_USAGE"]
          },
          {"name": "objectId", "type": "string"},
          {"name": "message", "type": "string"},
          {"name": "sensitive", "type": "boolean", "default": "false"}
      ]
     }

but on protocol compilation get:

org.apache.avro.SchemaParseException: Undefined name: "enum"
	at org.apache.avro.Schema.parse(Schema.java:876)
	at org.apache.avro.Schema.parse(Schema.java:912)
	at org.apache.avro.Protocol.parseTypes(Protocol.java:325)
	at org.apache.avro.Protocol.parse(Protocol.java:288)
	at org.apache.avro.Protocol.parse(Protocol.java:278)
	at org.apache.avro.Protocol.parse(Protocol.java:262)
	at org.apache.avro.specific.SpecificCompiler.compileProtocol(SpecificCompiler.java:104)
	at org.apache.avro.mojo.AvroMojo.execute(AvroMojo.java:163)
	at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:556)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
	at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
	at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
	at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
	at org.codehaus.classworlds.Launcher.main(Launcher.java:375)


Can someone spot an error please?  I'm on 1.3.3 and just copied the
example in the docs on
http://avro.apache.org/docs/1.3.3/spec.html#Enums

Thanks,
Tim

Re: Undefined name: "enum"

Posted by Tim Robertson <ti...@gmail.com>.
Thanks Doug,

My complete working definition is as below for anyone stumbling on this thread.
Tim


{"namespace": "org.gbif.portalanalytics",
 "protocol": "LogEvent",

 "types": [
     {"name": "Event", "type": "record",
      "fields": [
          {"name": "message", "type": "string"},
          {
          	"name": "sourceComponentType",
          	"type":
          	{
          		"name": "SOURCE_COMPONENT_TYPES",
          		"type": "enum",
	          	"symbols" : ["OCCURRENCE_HARVESTER", "CHECKLIST_HARVESTER", "USER"]
	         }
          },
          {"name": "instanceId", "type": "string"},
          {"name": "sessionId", "type": "string", "default": null},
          {"name": "count", "type": "int", "default": 0},
          {"name": "sourceId", "type": "string"},
          {"name": "userId", "type": "string"},
          {
          	"name": "level",
          	"type":
          	{
	          	"name": "LEVEL_TYPES",
          		"type": "enum",
	          	"symbols" : ["DEBUG", "INFO", "WARN", "ERROR"]
	        }
          },
          {"name": "agentId", "type": "string"},
          {
          	"name": "objectType",
          	"type":
          	{
	          	"name": "OBJECT_TYPES",
          		"type": "enum",
	          	"symbols" : ["OCCURRENCE", "NAME_USAGE"]
	        }
          },
          {"name": "objectId", "type": "string"},
          {"name": "message", "type": "string"},
          {"name": "sensitive", "type": "boolean", "default": "false"}
      ]
     }
 ],

 "messages": {
 	 "openSession": {
         "request": [],
         "response": "string"
 	 },

 	 "closeSession": {
         "request": [{"name": "sessionId", "type": "string"}],
         "response": []
 	 },

     "log": {
         "request": [{"name": "event", "type": "Event"}],
         "response": "string"
     }
 }
}


On Mon, Aug 2, 2010 at 5:59 PM, Doug Cutting <cu...@apache.org> wrote:
> The sourceComponentTypeField should look something like:
>
> {"name": "sourceComponentType",
>  "type": {"type": "enum", "symbols": [ ... ] }
> }
>
> This is the same error message that confused Sam in:
>
> https://issues.apache.org/jira/browse/AVRO-583
>
> Doug
>
> On 08/02/2010 08:46 AM, Tim Robertson wrote:
>>
>> Hi all,
>>
>> I am new to avro, and using it to implement an http RPC transport
>> layer to allow distributed components to push to a centralised event
>> log.
>>
>> I have the following types in my .avpr:
>>
>>  "types": [
>>      {"name": "Event", "type": "record",
>>       "fields": [
>>           {"name": "message", "type": "string"},
>>           {
>>                "type": "enum",
>>                "name": "sourceComponentType",
>>                "symbols" : ["OCCURRENCE_HARVESTER", "CHECKLIST_HARVESTER",
>> "USER"]
>>           },
>>           {"name": "instanceId", "type": "string"},
>>           {"name": "sessionId", "type": "string", "default": null},
>>           {"name": "count", "type": "int", "default": 0},
>>           {"name": "sourceId", "type": "string"},
>>           {"name": "userId", "type": "string"},
>>           {
>>                "type": "enum",
>>                "name": "level",
>>                "symbols" : ["DEBUG", "INFO", "WARN", "ERROR"]
>>           },
>>           {"name": "agentId", "type": "string"},
>>           {
>>                "type": "enum",
>>                "name": "objectType",
>>                "symbols" : ["OCCURRENCE", "NAME_USAGE"]
>>           },
>>           {"name": "objectId", "type": "string"},
>>           {"name": "message", "type": "string"},
>>           {"name": "sensitive", "type": "boolean", "default": "false"}
>>       ]
>>      }
>>
>> but on protocol compilation get:
>>
>> org.apache.avro.SchemaParseException: Undefined name: "enum"
>>        at org.apache.avro.Schema.parse(Schema.java:876)
>>        at org.apache.avro.Schema.parse(Schema.java:912)
>>        at org.apache.avro.Protocol.parseTypes(Protocol.java:325)
>>        at org.apache.avro.Protocol.parse(Protocol.java:288)
>>        at org.apache.avro.Protocol.parse(Protocol.java:278)
>>        at org.apache.avro.Protocol.parse(Protocol.java:262)
>>        at
>> org.apache.avro.specific.SpecificCompiler.compileProtocol(SpecificCompiler.java:104)
>>        at org.apache.avro.mojo.AvroMojo.execute(AvroMojo.java:163)
>>        at
>> org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
>>        at
>> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
>>        at
>> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:556)
>>        at
>> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535)
>>        at
>> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
>>        at
>> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
>>        at
>> org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
>>        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
>>        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
>>        at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
>>        at
>> org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
>>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>        at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>        at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>        at java.lang.reflect.Method.invoke(Method.java:597)
>>        at
>> org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
>>        at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
>>        at
>> org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
>>        at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
>>
>>
>> Can someone spot an error please?  I'm on 1.3.3 and just copied the
>> example in the docs on
>> http://avro.apache.org/docs/1.3.3/spec.html#Enums
>>
>> Thanks,
>> Tim
>

Re: Undefined name: "enum"

Posted by Doug Cutting <cu...@apache.org>.
The sourceComponentTypeField should look something like:

{"name": "sourceComponentType",
  "type": {"type": "enum", "symbols": [ ... ] }
}

This is the same error message that confused Sam in:

https://issues.apache.org/jira/browse/AVRO-583

Doug

On 08/02/2010 08:46 AM, Tim Robertson wrote:
> Hi all,
>
> I am new to avro, and using it to implement an http RPC transport
> layer to allow distributed components to push to a centralised event
> log.
>
> I have the following types in my .avpr:
>
>   "types": [
>       {"name": "Event", "type": "record",
>        "fields": [
>            {"name": "message", "type": "string"},
>            {
>            	"type": "enum",
>            	"name": "sourceComponentType",
>            	"symbols" : ["OCCURRENCE_HARVESTER", "CHECKLIST_HARVESTER", "USER"]
>            },
>            {"name": "instanceId", "type": "string"},
>            {"name": "sessionId", "type": "string", "default": null},
>            {"name": "count", "type": "int", "default": 0},
>            {"name": "sourceId", "type": "string"},
>            {"name": "userId", "type": "string"},
>            {
>            	"type": "enum",
>            	"name": "level",
>            	"symbols" : ["DEBUG", "INFO", "WARN", "ERROR"]
>            },
>            {"name": "agentId", "type": "string"},
>            {
>            	"type": "enum",
>            	"name": "objectType",
>            	"symbols" : ["OCCURRENCE", "NAME_USAGE"]
>            },
>            {"name": "objectId", "type": "string"},
>            {"name": "message", "type": "string"},
>            {"name": "sensitive", "type": "boolean", "default": "false"}
>        ]
>       }
>
> but on protocol compilation get:
>
> org.apache.avro.SchemaParseException: Undefined name: "enum"
> 	at org.apache.avro.Schema.parse(Schema.java:876)
> 	at org.apache.avro.Schema.parse(Schema.java:912)
> 	at org.apache.avro.Protocol.parseTypes(Protocol.java:325)
> 	at org.apache.avro.Protocol.parse(Protocol.java:288)
> 	at org.apache.avro.Protocol.parse(Protocol.java:278)
> 	at org.apache.avro.Protocol.parse(Protocol.java:262)
> 	at org.apache.avro.specific.SpecificCompiler.compileProtocol(SpecificCompiler.java:104)
> 	at org.apache.avro.mojo.AvroMojo.execute(AvroMojo.java:163)
> 	at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
> 	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
> 	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:556)
> 	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535)
> 	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
> 	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
> 	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
> 	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
> 	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
> 	at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
> 	at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
> 	at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
> 	at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
> 	at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
>
>
> Can someone spot an error please?  I'm on 1.3.3 and just copied the
> example in the docs on
> http://avro.apache.org/docs/1.3.3/spec.html#Enums
>
> Thanks,
> Tim