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Fix problem accessing array-indexed fields.

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This change fixes accessing fields of the form [list][0][key], where
[list] is an array, [0] is the numeric index into the array, and [key]
is the hash key into one of the items in the array.
This commit is contained in:
Van Eenwyk, Jonathan 2014-04-01 08:22:57 -06:00
parent e1bd6a1365
commit 82650a21ba
2 changed files with 8 additions and 1 deletions
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2
lib/logstash/util/accessors.rb
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@ -57,7 +57,7 @@ module LogStash::Util
def store_path(accessor)
key, path = PathCache.get(accessor)
target = path.inject(@store) {|r, k| r[k] ||= {}}
target = path.inject(@store) {|r, k| r[r.is_a?(Array) ? k.to_i : k] ||= {}}
[target, key]
end

7
spec/util/accessors_spec.rb
View file

@ -146,6 +146,13 @@ describe LogStash::Util::Accessors, :if => true do
insist { accessors.get("[hello][world][0]") } == data["hello"]["world"][0]
insist { accessors.get("[hello][world][1]") } == data["hello"]["world"][1]
end
it "should retrieve array item containing hash" do
data = { "hello" => { "world" => [ { "a" => 123 }, { "b" => 345 } ], "bar" => "baz" } }
accessors = LogStash::Util::Accessors.new(data)
insist { accessors.get("[hello][world][0][a]") } == data["hello"]["world"][0]["a"]
insist { accessors.get("[hello][world][1][b]") } == data["hello"]["world"][1]["b"]
end
end
context "using invalid encoding" do