Hi,
I am trying to implement the match-query-syntax either in the java-api
(through jruby) or via REST.
This works in Studio:
> MATCH {class: Industry, as: Industries} <-- {} <-- { as: Subcategories }
> RETURN Industries, Subcategories
>
"result": [
{
"@type": "d",
"@version": 0,
"Industries": "#21:3",
"Subcategories": "#28:46",
"@fieldTypes": "Industries=x,Subcategories=x"
},
{
"@type": "d",
"@version": 0,
"Industries": "#23:1",
"Subcategories": "#26:2",
"@fieldTypes": "Industries=x,Subcategories=x"
}, (...)
However "explain" gives a java.lang.NullPointerException.#
Now my problem.
When submitting the query via REST(batch) it is parsed via json
and ends up with a Timeout-Error (im my case
#
>> /home/topo/.rvm/gems/ruby-2.3.1/gems/rest-client-1.8.0/lib/restclient/request.rb:427:in
>>
>> `rescue in transmit
>
> #
>> /home/topo/.rvm/gems/ruby-2.3.1/gems/rest-client-1.8.0/lib/restclient/request.rb:350:in
>>
>> `transmit'
>
> #
>> /home/topo/.rvm/gems/ruby-2.3.1/gems/rest-client-1.8.0/lib/restclient/request.rb:176:in
>>
>> `execute'
>
> #
>> /home/topo/.rvm/gems/ruby-2.3.1/gems/rest-client-1.8.0/lib/restclient/request.rb:41:in
>>
>> `execute'
>
> #
>> /home/topo/.rvm/gems/ruby-2.3.1/gems/rest-client-1.8.0/lib/restclient/resource.rb:67:in
>>
>> `post'
>
> # /home/topo/activeorient/lib/rest_operations.rb:63:in `execute'
>
> # /home/topo/activeorient/lib/model_class.rb:353:in `query_database'
>
> # /home/topo/activeorient/lib/model_class.rb:316:in `match'
>
> # ./spec/usecase/contracts_spec.rb:87:in `block (3 levels) in <top
>> (required)>'
>
> # ------------------
>
> # --- Caused by: ---
>
> # Net::ReadTimeout:
>
> # Net::ReadTimeout
>
> #
>> /home/topo/.rvm/gems/ruby-2.3.1/gems/rest-client-1.8.0/lib/restclient/request.rb:270:in
>>
>> `net_http_do_requestt
>
>
when transmitting via the java api using the command method,
jruby-head :012 > ret= DB.execute { 'MATCH {class: Industry, as:
Industries\} <-- {} <-- { as: Subcategories } RETURN Industries,
Subcategories' }
Java::ComOrientechnologiesOrientEnterpriseChannelBinary::OResponseProcessingException:
Exception during response processing
from
com.orientechnologies.orient.client.binary.OChannelBinaryAsynchClient.throwSerializedException(com/orientechnologies/orient/client/binary/OChannelBinaryAsynchClient.java:447)
from
com.orientechnologies.orient.client.binary.OChannelBinaryAsynchClient.handleStatus(com/orientechnologies/orient/client/binary/OChannelBinaryAsynchClient.java:382)
from
com.orientechnologies.orient.client.binary.OChannelBinaryAsynchClient.beginResponse(com/orientechnologies/orient/client/binary/OChannelBinaryAsynchClient.java:264)
from
com.orientechnologies.orient.client.binary.OChannelBinaryAsynchClient.beginResponse(com/orientechnologies/orient/client/binary/OChannelBinaryAsynchClient.java:152)
from
com.orientechnologies.orient.client.remote.OStorageRemote.beginResponse(com/orientechnologies/orient/client/remote/OStorageRemote.java:2117)
from
com.orientechnologies.orient.client.remote.OStorageRemote.beginResponse(com/orientechnologies/orient/client/remote/OStorageRemote.java:2112)
from
com.orientechnologies.orient.client.remote.OStorageRemote$19.execute(com/orientechnologies/orient/client/remote/OStorageRemote.java:1154)
from
com.orientechnologies.orient.client.remote.OStorageRemote.networkOperation(com/orientechnologies/orient/client/remote/OStorageRemote.java:168)
from
com.orientechnologies.orient.client.remote.OStorageRemote.command(com/orientechnologies/orient/client/remote/OStorageRemote.java:1130)
from
com.orientechnologies.orient.core.command.OCommandRequestTextAbstract.execute(com/orientechnologies/orient/core/command/OCommandRequestTextAbstract.java:69)
from java.lang.reflect.Method.invoke(java/lang/reflect/Method.java:498)
from
org.jruby.javasupport.JavaMethod.invokeDirectWithExceptionHandling(org/jruby/javasupport/JavaMethod.java:423)
from
org.jruby.javasupport.JavaMethod.invokeDirect(org/jruby/javasupport/JavaMethod.java:290)
from RUBY.run_command(/home/topo/orientdb-jruby/lib/orientdb/database.rb:6)
from RUBY.block in execute(/home/topo/activeorient/lib/java-api.rb:306)
As there is a SerializedException-Error, I suspect, this is simply a
matter of escaping some characters.
How is this done?
Thanks
hartmut
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