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Completed support for the fn:local-name Metapath functions.
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111 changes: 111 additions & 0 deletions
111
...src/main/java/gov/nist/secauto/metaschema/core/metapath/function/library/FnLocalName.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| /* | ||
| * SPDX-FileCopyrightText: none | ||
| * SPDX-License-Identifier: CC0-1.0 | ||
| */ | ||
|
|
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| package gov.nist.secauto.metaschema.core.metapath.function.library; | ||
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| import gov.nist.secauto.metaschema.core.metapath.DynamicContext; | ||
| import gov.nist.secauto.metaschema.core.metapath.MetapathConstants; | ||
| import gov.nist.secauto.metaschema.core.metapath.StaticContext; | ||
| import gov.nist.secauto.metaschema.core.metapath.function.FunctionUtils; | ||
| import gov.nist.secauto.metaschema.core.metapath.function.IArgument; | ||
| import gov.nist.secauto.metaschema.core.metapath.function.IFunction; | ||
| import gov.nist.secauto.metaschema.core.metapath.item.IItem; | ||
| import gov.nist.secauto.metaschema.core.metapath.item.ISequence; | ||
| import gov.nist.secauto.metaschema.core.metapath.item.atomic.IStringItem; | ||
| import gov.nist.secauto.metaschema.core.metapath.item.node.IDefinitionNodeItem; | ||
| import gov.nist.secauto.metaschema.core.metapath.item.node.INodeItem; | ||
| import gov.nist.secauto.metaschema.core.util.ObjectUtils; | ||
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| import java.util.List; | ||
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| import edu.umd.cs.findbugs.annotations.NonNull; | ||
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| /** | ||
| * /** Implements | ||
| * <a href= "https://www.w3.org/TR/xpath-functions-31/#func-name">fn:name</a> | ||
| * functions. | ||
| */ | ||
| public final class FnLocalName { | ||
| @NonNull | ||
| private static final String NAME = "local-name"; | ||
| @NonNull | ||
| static final IFunction SIGNATURE_NO_ARG = IFunction.builder() | ||
| .name(NAME) | ||
| .namespace(MetapathConstants.NS_METAPATH_FUNCTIONS) | ||
| .deterministic() | ||
| .contextDependent() | ||
| .focusDependent() | ||
| .returnType(IStringItem.type()) | ||
| .returnOne() | ||
| .functionHandler(FnLocalName::executeNoArg) | ||
| .build(); | ||
| @NonNull | ||
| static final IFunction SIGNATURE_ONE_ARG = IFunction.builder() | ||
| .name(NAME) | ||
| .namespace(MetapathConstants.NS_METAPATH_FUNCTIONS) | ||
| .deterministic() | ||
| .contextIndependent() | ||
| .focusDependent() | ||
| .argument(IArgument.builder() | ||
| .name("arg") | ||
| .type(INodeItem.type()) | ||
| .zeroOrOne() | ||
| .build()) | ||
| .returnType(IStringItem.type()) | ||
| .returnOne() | ||
| .functionHandler(FnLocalName::executeOneArg) | ||
| .build(); | ||
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| @SuppressWarnings("unused") | ||
| @NonNull | ||
| private static ISequence<IStringItem> executeNoArg(@NonNull IFunction function, | ||
| @NonNull List<ISequence<?>> arguments, | ||
| @NonNull DynamicContext dynamicContext, | ||
| IItem focus) { | ||
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| INodeItem arg = FunctionUtils.asType( | ||
| // test that the focus is an INodeItem | ||
| INodeItem.type().test(ObjectUtils.requireNonNull(focus))); | ||
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| return ISequence.of( | ||
| IStringItem.valueOf(fnLocalName(arg, dynamicContext.getStaticContext()))); | ||
| } | ||
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| @SuppressWarnings("unused") | ||
| @NonNull | ||
| private static ISequence<IStringItem> executeOneArg(@NonNull IFunction function, | ||
| @NonNull List<ISequence<?>> arguments, | ||
| @NonNull DynamicContext dynamicContext, | ||
| IItem focus) { | ||
| INodeItem arg = FunctionUtils.asTypeOrNull(ObjectUtils.requireNonNull(arguments.get(0)).getFirstItem(true)); | ||
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| return ISequence.of( | ||
| IStringItem.valueOf(arg == null ? "" : fnLocalName(arg, dynamicContext.getStaticContext()))); | ||
| } | ||
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| /** | ||
| * Get the name of the provided node item. | ||
| * <p> | ||
| * Based on the XPath 3.1 <a href= | ||
| * "https://www.w3.org/TR/xpath-functions-31/#func-local-name">fn:local-name</a> | ||
| * function. | ||
| * | ||
| * @param arg | ||
| * the node item to get the name for | ||
| * @param staticContext | ||
| * the static context used to resolve the namespace prefix | ||
| * @return the name of the node if it has one, or an empty string otherwise | ||
| */ | ||
| @NonNull | ||
| public static String fnLocalName(@NonNull INodeItem arg, @NonNull StaticContext staticContext) { | ||
| return arg instanceof IDefinitionNodeItem | ||
| ? ((IDefinitionNodeItem<?, ?>) arg).getQName().getLocalName() | ||
| : ""; | ||
| } | ||
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| private FnLocalName() { | ||
| // disable construction | ||
| } | ||
| } |
117 changes: 117 additions & 0 deletions
117
...test/java/gov/nist/secauto/metaschema/core/metapath/function/library/FnLocalNameTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| /* | ||
| * SPDX-FileCopyrightText: none | ||
| * SPDX-License-Identifier: CC0-1.0 | ||
| */ | ||
|
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| package gov.nist.secauto.metaschema.core.metapath.function.library; | ||
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| import static org.junit.jupiter.api.Assertions.assertAll; | ||
| import static org.junit.jupiter.api.Assertions.assertEquals; | ||
| import static org.junit.jupiter.api.Assertions.assertNotNull; | ||
| import static org.junit.jupiter.api.Assertions.assertThrows; | ||
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| import gov.nist.secauto.metaschema.core.metapath.DynamicContext; | ||
| import gov.nist.secauto.metaschema.core.metapath.DynamicMetapathException; | ||
| import gov.nist.secauto.metaschema.core.metapath.ExpressionTestBase; | ||
| import gov.nist.secauto.metaschema.core.metapath.IMetapathExpression; | ||
| import gov.nist.secauto.metaschema.core.metapath.MetapathException; | ||
| import gov.nist.secauto.metaschema.core.metapath.function.library.impl.MockedDocumentGenerator; | ||
| import gov.nist.secauto.metaschema.core.metapath.item.atomic.IStringItem; | ||
| import gov.nist.secauto.metaschema.core.metapath.type.InvalidTypeMetapathException; | ||
| import gov.nist.secauto.metaschema.core.metapath.type.TypeMetapathException; | ||
| import gov.nist.secauto.metaschema.core.qname.IEnhancedQName; | ||
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| import org.junit.jupiter.api.Test; | ||
| import org.junit.jupiter.params.ParameterizedTest; | ||
| import org.junit.jupiter.params.provider.Arguments; | ||
| import org.junit.jupiter.params.provider.MethodSource; | ||
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| import java.util.stream.Stream; | ||
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| import edu.umd.cs.findbugs.annotations.NonNull; | ||
| import edu.umd.cs.findbugs.annotations.Nullable; | ||
|
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| class FnLocalNameTest | ||
| extends ExpressionTestBase { | ||
|
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| private static Stream<Arguments> provideValues() { // NOPMD - false positive | ||
| return Stream.of( | ||
| Arguments.of( | ||
| null, | ||
| "local-name()"), | ||
| Arguments.of( | ||
| null, | ||
| "local-name(.)"), | ||
| Arguments.of( | ||
| MockedDocumentGenerator.ROOT_QNAME, | ||
| "local-name(/root)"), | ||
| Arguments.of( | ||
| MockedDocumentGenerator.ASSEMBLY_QNAME, | ||
| "local-name(/root/assembly)"), | ||
| Arguments.of( | ||
| MockedDocumentGenerator.ASSEMBLY_FLAG_QNAME, | ||
| "local-name(/root/assembly/@assembly-flag)"), | ||
| Arguments.of( | ||
| MockedDocumentGenerator.FIELD_QNAME, | ||
| "local-name(/root/field)"), | ||
| Arguments.of( | ||
| MockedDocumentGenerator.FIELD_FLAG_QNAME, | ||
| "local-name(/root/field/@field-flag)")); | ||
| } | ||
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| @ParameterizedTest | ||
| @MethodSource("provideValues") | ||
| void test(@Nullable IEnhancedQName expected, @NonNull String metapath) { | ||
| DynamicContext dynamicContext = newDynamicContext(); | ||
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| IStringItem result = IMetapathExpression.compile(metapath, dynamicContext.getStaticContext()) | ||
| .evaluateAs( | ||
| MockedDocumentGenerator.generateDocumentNodeItem(getContext()), | ||
| IMetapathExpression.ResultType.ITEM, | ||
| dynamicContext); | ||
| assertNotNull(result); | ||
| assertEquals( | ||
| expected == null | ||
| ? "" | ||
| : expected.getLocalName(), | ||
| result.asString()); | ||
| } | ||
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| @Test | ||
| void testContextAbsent() { | ||
| DynamicContext dynamicContext = newDynamicContext(); | ||
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| MetapathException ex = assertThrows(MetapathException.class, () -> { | ||
| IMetapathExpression.compile("local-name()", dynamicContext.getStaticContext()) | ||
| .evaluateAs(null, IMetapathExpression.ResultType.ITEM, dynamicContext); | ||
| }); | ||
| Throwable cause = ex.getCause() != null ? ex.getCause().getCause() : null; | ||
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| assertAll( | ||
| () -> assertEquals(DynamicMetapathException.class, cause == null | ||
| ? null | ||
| : cause.getClass()), | ||
| () -> assertEquals(DynamicMetapathException.DYNAMIC_CONTEXT_ABSENT, cause instanceof DynamicMetapathException | ||
| ? ((DynamicMetapathException) cause).getCode() | ||
| : null)); | ||
| } | ||
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| @Test | ||
| void testNotANode() { | ||
| DynamicContext dynamicContext = newDynamicContext(); | ||
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| MetapathException ex = assertThrows(MetapathException.class, () -> { | ||
| IMetapathExpression.compile("local-name()", dynamicContext.getStaticContext()) | ||
| .evaluateAs(IStringItem.valueOf("test"), IMetapathExpression.ResultType.ITEM, dynamicContext); | ||
| }); | ||
| Throwable cause = ex.getCause() != null ? ex.getCause().getCause() : null; | ||
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| assertAll( | ||
| () -> assertEquals(InvalidTypeMetapathException.class, cause == null | ||
| ? null | ||
| : cause.getClass()), | ||
| () -> assertEquals(TypeMetapathException.INVALID_TYPE_ERROR, cause instanceof TypeMetapathException | ||
| ? ((TypeMetapathException) cause).getCode() | ||
| : null)); | ||
| } | ||
| } |
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