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[C++] AVRO-4058: Allow custom attributes in arrays #3168

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merged 3 commits into from
Sep 24, 2024
Merged

[C++] AVRO-4058: Allow custom attributes in arrays #3168

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858253b
Allow custom attributes on array values
Sep 20, 2024
ce5c47a
Merge branch 'main' into allow-custom-attributes
Sep 24, 2024
235dde9
Fix merge error of undoing conversion of custom attribute to string
Sep 24, 2024
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5 changes: 4 additions & 1 deletion lang/c++/impl/Compiler.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -267,7 +267,7 @@ static const std::unordered_set<std::string> &getKnownFields() {
// return known fields
static const std::unordered_set<std::string> kKnownFields =
{"name", "type", "aliases", "default", "doc", "size", "logicalType",
"values", "precision", "scale", "namespace"};
"values", "precision", "scale", "namespace", "items"};
return kKnownFields;
}

Expand Down Expand Up @@ -424,6 +424,9 @@ static NodePtr makeArrayNode(const Entity &e, const Object &m,
if (containsField(m, "doc")) {
node->setDoc(getDocField(e, m));
}
CustomAttributes customAttributes;
getCustomAttributes(m, customAttributes);
node->addCustomAttributesForField(customAttributes);
return node;
}

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3 changes: 3 additions & 0 deletions lang/c++/impl/NodeImpl.cc
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Expand Up @@ -554,6 +554,9 @@ void NodeArray::printJson(std::ostream &os, size_t depth) const {
os << indent(depth + 1) << "\"items\": ";
leafAttributes_.get()->printJson(os, depth + 1);
os << '\n';
for (size_t i = 0; i != customAttributes_.size(); i++){
printCustomAttributes(customAttributes_.get(i), depth + 1, os);
}
os << indent(depth) << '}';
}

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4 changes: 2 additions & 2 deletions lang/c++/include/avro/NodeImpl.hh
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Expand Up @@ -234,7 +234,7 @@ using NodeImplSymbolic = NodeImpl<HasName, NoLeaves, NoLeafNames, NoAttributes,

using NodeImplRecord = NodeImpl<HasName, MultiLeaves, LeafNames, MultiAttributes, NoSize>;
using NodeImplEnum = NodeImpl<HasName, NoLeaves, LeafNames, NoAttributes, NoSize>;
using NodeImplArray = NodeImpl<NoName, SingleLeaf, NoLeafNames, NoAttributes, NoSize>;
using NodeImplArray = NodeImpl<NoName, SingleLeaf, NoLeafNames, MultiAttributes, NoSize>;
using NodeImplMap = NodeImpl<NoName, MultiLeaves, NoLeafNames, NoAttributes, NoSize>;
using NodeImplUnion = NodeImpl<NoName, MultiLeaves, NoLeafNames, NoAttributes, NoSize>;
using NodeImplFixed = NodeImpl<HasName, NoLeaves, NoLeafNames, NoAttributes, HasSize>;
Expand Down Expand Up @@ -363,7 +363,7 @@ class AVRO_DECL NodeArray : public NodeImplArray {
public:
NodeArray() : NodeImplArray(AVRO_ARRAY) {}

explicit NodeArray(const SingleLeaf &items) : NodeImplArray(AVRO_ARRAY, NoName(), items, NoLeafNames(), NoAttributes(), NoSize()) {}
explicit NodeArray(const SingleLeaf &items) : NodeImplArray(AVRO_ARRAY, NoName(), items, NoLeafNames(), {}, NoSize()) {}

SchemaResolution resolve(const Node &reader) const override;

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7 changes: 4 additions & 3 deletions lang/c++/test/SchemaTests.cc
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Expand Up @@ -355,7 +355,8 @@ const char *roundTripSchemas[] = {
{"name":"f1","type":"long","extra_field":"1"},
{"name":"f2","type":"int","extra_field1":"21","extra_field2":"22"}
]
})"
})",
R"({"type":"array","items":"long","extra":"1"})"
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There is an error:

unknown location(0): fatal error: in "Avro C__ unit tests for schemas/avro__schema__testBasic_35": avro::Exception: Invalid type. Expected "string" actual long
/home/runner/work/avro/avro/lang/c++/test/SchemaTests.cc(428): last checkpoint: {"type": "array", "items": "long", "extra attribute": 1}

Where does attribute come from in "extra attribute" ?!?

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The issue is not in the added test case but in an existing test case (line 146) in testBasic checking that custom attributes do not impact the ability to compile schemas.
The specified attribute in the test was given as a integer, which so far was no issue as it was ignored but now it is attempted to be parsed. This attempt failed as only strings are supported in custom attributes. For now I changed the attribute to a string, the original test case can be restored once non-string attributes are supported.
(This change of 1 to "1" was present in the original PR, I accidentally undid it when merging the latest main)

};

const char *malformedLogicalTypes[] = {
Expand Down Expand Up @@ -448,11 +449,11 @@ static void testRoundTrip(const char *schema) {
compiledSchema.toJson(os);
std::string result = removeWhitespaceFromSchema(os.str());
std::string trimmedSchema = removeWhitespaceFromSchema(schema);
BOOST_CHECK(result == trimmedSchema);
BOOST_CHECK_EQUAL(result, trimmedSchema);
// Verify that the compact schema from toJson has the same content as the
// schema.
std::string result2 = compiledSchema.toJson(false);
BOOST_CHECK(result2 == trimmedSchema);
BOOST_CHECK_EQUAL(result2, trimmedSchema);
}

static void testCompactSchemas() {
Expand Down
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