1 | /* | |
2 | * Copyright OpenSearch Contributors | |
3 | * SPDX-License-Identifier: Apache-2.0 | |
4 | */ | |
5 | ||
6 | ||
7 | package org.opensearch.sql.analysis; | |
8 | ||
9 | import java.util.Arrays; | |
10 | import java.util.Optional; | |
11 | import lombok.RequiredArgsConstructor; | |
12 | import org.opensearch.sql.analysis.symbol.Namespace; | |
13 | import org.opensearch.sql.analysis.symbol.Symbol; | |
14 | import org.opensearch.sql.ast.expression.QualifiedName; | |
15 | import org.opensearch.sql.common.antlr.SyntaxCheckException; | |
16 | import org.opensearch.sql.exception.SemanticCheckException; | |
17 | ||
18 | /** | |
19 | * Analyzer that analyzes qualifier(s) in a full field name. | |
20 | */ | |
21 | @RequiredArgsConstructor | |
22 | public class QualifierAnalyzer { | |
23 | ||
24 | private final AnalysisContext context; | |
25 | ||
26 | public String unqualified(String... parts) { | |
27 |
1
1. unqualified : replaced return value with "" for org/opensearch/sql/analysis/QualifierAnalyzer::unqualified → KILLED |
return unqualified(QualifiedName.of(Arrays.asList(parts))); |
28 | } | |
29 | ||
30 | /** | |
31 | * Get unqualified name if its qualifier symbol found is in index namespace | |
32 | * on type environment. Unqualified name means name with qualifier removed. | |
33 | * For example, unqualified name of "accounts.age" or "acc.age" is "age". | |
34 | * | |
35 | * @return unqualified name if criteria met above, otherwise original name | |
36 | */ | |
37 | public String unqualified(QualifiedName fullName) { | |
38 |
2
1. unqualified : negated conditional → KILLED 2. unqualified : replaced return value with "" for org/opensearch/sql/analysis/QualifierAnalyzer::unqualified → KILLED |
return isQualifierIndexOrAlias(fullName) ? fullName.rest().toString() : fullName.toString(); |
39 | } | |
40 | ||
41 | private boolean isQualifierIndexOrAlias(QualifiedName fullName) { | |
42 | Optional<String> qualifier = fullName.first(); | |
43 |
1
1. isQualifierIndexOrAlias : negated conditional → KILLED |
if (qualifier.isPresent()) { |
44 |
1
1. isQualifierIndexOrAlias : negated conditional → KILLED |
if (isFieldName(qualifier.get())) { |
45 |
1
1. isQualifierIndexOrAlias : replaced boolean return with true for org/opensearch/sql/analysis/QualifierAnalyzer::isQualifierIndexOrAlias → KILLED |
return false; |
46 | } | |
47 |
1
1. isQualifierIndexOrAlias : removed call to org/opensearch/sql/analysis/QualifierAnalyzer::resolveQualifierSymbol → KILLED |
resolveQualifierSymbol(fullName, qualifier.get()); |
48 |
1
1. isQualifierIndexOrAlias : replaced boolean return with false for org/opensearch/sql/analysis/QualifierAnalyzer::isQualifierIndexOrAlias → KILLED |
return true; |
49 | } | |
50 |
1
1. isQualifierIndexOrAlias : replaced boolean return with true for org/opensearch/sql/analysis/QualifierAnalyzer::isQualifierIndexOrAlias → KILLED |
return false; |
51 | } | |
52 | ||
53 | private boolean isFieldName(String qualifier) { | |
54 | try { | |
55 | // Resolve the qualifier in Namespace.FIELD_NAME | |
56 | context.peek().resolve(new Symbol(Namespace.FIELD_NAME, qualifier)); | |
57 |
1
1. isFieldName : replaced boolean return with false for org/opensearch/sql/analysis/QualifierAnalyzer::isFieldName → KILLED |
return true; |
58 | } catch (SemanticCheckException e2) { | |
59 |
1
1. isFieldName : replaced boolean return with true for org/opensearch/sql/analysis/QualifierAnalyzer::isFieldName → KILLED |
return false; |
60 | } | |
61 | } | |
62 | ||
63 | private void resolveQualifierSymbol(QualifiedName fullName, String qualifier) { | |
64 | try { | |
65 | context.peek().resolve(new Symbol(Namespace.INDEX_NAME, qualifier)); | |
66 | } catch (SemanticCheckException e) { | |
67 | // Throw syntax check intentionally to indicate fall back to old engine. | |
68 | // Need change to semantic check exception in future. | |
69 | throw new SyntaxCheckException(String.format( | |
70 | "The qualifier [%s] of qualified name [%s] must be an field name, index name or its " | |
71 | + "alias", qualifier, fullName)); | |
72 | } | |
73 | } | |
74 | ||
75 | } | |
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