I'm getting weird NullPointerExceptions as soon as I try to use a script
with a for-loop over nested values. Through some tests I am sure that the
variable "doc[...].values" I'm retrieving is of type "Longs". Adding any
kind of null-checks did not fix this problem so I suppose it's a bug in
elasticsearch...
Mapping:
{
"ppint" : {
"mappings" : {
"version" : {
"_meta" : {
"model" : "...."
},
"properties" : {
"classes" : { "type" : "string" },
"codeTags" : {
"type" : "nested",
"properties" : {
"count" : { "type" : "integer" },
"name" : { "type" : "string" }
}
},
"languages" : { "type" : "string" },
"name" : { "type" : "string" },
"namespaces" : { "type" : "string" },
"package" : {
"properties" : {
"description" : { "type" : "string" },
"id" : { "type" : "string" },
"name" : { "type" : "string" }
}
}
}
}
}
}
}
Query:
{
"query": {
"function_score": {
"score_mode": "first",
"functions": [
{
"script_score": {
"script": "for (tag : doc['codeTags.count'].values)
{ _score + tag; }"
}
}
]
}
}
}
Error:
{
[aF4-pJ4-RuuqrYV9SCHmnQ][ppint][4]: QueryPhaseExecutionException [
[ppint][4]: query [
filtered (
function score (
ConstantScore(:),
functions: [
{
filter(:),
function [
script [
for (tag : doc['codeTags.count'].values)
{ _score + tag; }
],
params [
null
]
]
}
]
)
)->cache(_type:version)
],
from[0],
size[10]: Query Failed [Failed to execute main query]
];
nested: NullPointerException;
}
I hope you can help me with that problem.
I really need the score to be dependent based on tag-count , or I would
have to move to some other system than elasticsearch.
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