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Added support for FnConcat and associated unit tests.
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107 changes: 107 additions & 0 deletions
107
core/src/main/java/gov/nist/secauto/metaschema/core/metapath/function/library/FnConcat.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,107 @@ | ||
| /* | ||
| * Portions of this software was developed by employees of the National Institute | ||
| * of Standards and Technology (NIST), an agency of the Federal Government and is | ||
| * being made available as a public service. Pursuant to title 17 United States | ||
| * Code Section 105, works of NIST employees are not subject to copyright | ||
| * protection in the United States. This software may be subject to foreign | ||
| * copyright. Permission in the United States and in foreign countries, to the | ||
| * extent that NIST may hold copyright, to use, copy, modify, create derivative | ||
| * works, and distribute this software and its documentation without fee is hereby | ||
| * granted on a non-exclusive basis, provided that this notice and disclaimer | ||
| * of warranty appears in all copies. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER | ||
| * EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY | ||
| * THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF | ||
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM | ||
| * INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE | ||
| * SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE. IN NO EVENT | ||
| * SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT, | ||
| * INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM, | ||
| * OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY, | ||
| * CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR | ||
| * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT | ||
| * OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER. | ||
| */ | ||
|
|
||
| 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.ISequence; | ||
| import gov.nist.secauto.metaschema.core.metapath.MetapathConstants; | ||
| 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.atomic.IAnyAtomicItem; | ||
| import gov.nist.secauto.metaschema.core.metapath.item.atomic.IStringItem; | ||
| import gov.nist.secauto.metaschema.core.util.ObjectUtils; | ||
|
|
||
| import java.util.Arrays; | ||
| import java.util.List; | ||
| import java.util.stream.Collectors; | ||
| import java.util.stream.Stream; | ||
|
|
||
| import edu.umd.cs.findbugs.annotations.NonNull; | ||
|
|
||
| public final class FnConcat { | ||
| @NonNull | ||
| static final IFunction SIGNATURE = IFunction.builder() | ||
| .name("concat") | ||
| .namespace(MetapathConstants.NS_METAPATH_FUNCTIONS) | ||
| .deterministic() | ||
| .contextIndependent() | ||
| .focusIndependent() | ||
| .argument(IArgument.builder() | ||
| .name("arg1") | ||
| .type(IAnyAtomicItem.class) | ||
| .zeroOrOne() | ||
| .build()) | ||
| .argument(IArgument.builder() | ||
| .name("arg2") | ||
| .type(IAnyAtomicItem.class) | ||
| .zeroOrOne() | ||
| .build()) | ||
| .allowUnboundedArity(true) | ||
| .returnType(IStringItem.class) | ||
| .returnOne() | ||
| .functionHandler(FnConcat::execute) | ||
| .build(); | ||
|
|
||
| private FnConcat() { | ||
| // disable construction | ||
| } | ||
|
|
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| @NonNull | ||
| private static ISequence<IStringItem> execute( | ||
| @NonNull IFunction function, | ||
| @NonNull List<ISequence<?>> arguments, | ||
| @NonNull DynamicContext dynamicContext, | ||
| IItem focus) { | ||
|
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| return ISequence.of(concat(ObjectUtils.notNull(arguments.stream() | ||
| .map(arg -> { | ||
| assert arg != null; | ||
| return (IAnyAtomicItem) FunctionUtils.getFirstItem(arg, true); | ||
| })))); | ||
| } | ||
|
|
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| @NonNull | ||
| public static IStringItem concat(IAnyAtomicItem... items) { | ||
| return concat(ObjectUtils.notNull(Arrays.asList(items))); | ||
| } | ||
|
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||
| @NonNull | ||
| public static IStringItem concat(@NonNull List<? extends IAnyAtomicItem> items) { | ||
| return concat(ObjectUtils.notNull(items.stream())); | ||
| } | ||
|
|
||
| @NonNull | ||
| public static IStringItem concat(@NonNull Stream<? extends IAnyAtomicItem> items) { | ||
| return IStringItem.valueOf(ObjectUtils.notNull(items | ||
| .map(item -> { | ||
| return item == null ? "" : IStringItem.cast(item).asString(); | ||
| }) | ||
| .collect(Collectors.joining()))); | ||
| } | ||
| } |
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77 changes: 77 additions & 0 deletions
77
...rc/test/java/gov/nist/secauto/metaschema/core/metapath/function/library/FnConcatTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| /* | ||
| * Portions of this software was developed by employees of the National Institute | ||
| * of Standards and Technology (NIST), an agency of the Federal Government and is | ||
| * being made available as a public service. Pursuant to title 17 United States | ||
| * Code Section 105, works of NIST employees are not subject to copyright | ||
| * protection in the United States. This software may be subject to foreign | ||
| * copyright. Permission in the United States and in foreign countries, to the | ||
| * extent that NIST may hold copyright, to use, copy, modify, create derivative | ||
| * works, and distribute this software and its documentation without fee is hereby | ||
| * granted on a non-exclusive basis, provided that this notice and disclaimer | ||
| * of warranty appears in all copies. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER | ||
| * EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY | ||
| * THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF | ||
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM | ||
| * INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE | ||
| * SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE. IN NO EVENT | ||
| * SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT, | ||
| * INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM, | ||
| * OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY, | ||
| * CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR | ||
| * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT | ||
| * OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER. | ||
| */ | ||
|
|
||
| package gov.nist.secauto.metaschema.core.metapath.function.library; | ||
|
|
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| import static gov.nist.secauto.metaschema.core.metapath.TestUtils.*; | ||
| import static org.junit.jupiter.api.Assertions.assertEquals; | ||
|
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| import gov.nist.secauto.metaschema.core.metapath.ExpressionTestBase; | ||
| import gov.nist.secauto.metaschema.core.metapath.ISequence; | ||
| import gov.nist.secauto.metaschema.core.metapath.MetapathExpression; | ||
|
|
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| 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; | ||
|
|
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| class FnConcatTest | ||
| extends ExpressionTestBase { | ||
| private static Stream<Arguments> provideValues() { // NOPMD - false positive | ||
| return Stream.of( | ||
| Arguments.of( | ||
| ISequence.of(string("ungrateful")), | ||
| "concat('un','grateful')"), | ||
| Arguments.of( | ||
| ISequence.of(string("Thy old groans ring yet in my ancient ears.")), | ||
| "concat('Thy ', (), 'old ', \"groans\", \"\", ' ring', ' yet', ' in', ' my', ' ancient',' ears.')"), | ||
| Arguments.of( | ||
| ISequence.of(string("Ciao!")), | ||
| "concat('Ciao!',())"), | ||
| Arguments.of( | ||
| ISequence.of(string("Ingratitude, thou marble-hearted fiend!")), | ||
| "concat('Ingratitude, ', 'thou ', 'marble-hearted', ' fiend!')"), | ||
| Arguments.of( | ||
| ISequence.of(string("1234true")), | ||
| "concat(01, 02, 03, 04, true())"), | ||
| Arguments.of( | ||
| ISequence.of(string("10/6")), | ||
| "10 || '/' || 6")); | ||
| } | ||
|
|
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| @ParameterizedTest | ||
| @MethodSource("provideValues") | ||
| void testExpression(@NonNull ISequence<?> expected, @NonNull String metapath) { | ||
| assertEquals( | ||
| expected, | ||
| MetapathExpression.compile(metapath) | ||
| .evaluateAs(null, MetapathExpression.ResultType.SEQUENCE, newDynamicContext())); | ||
| } | ||
|
|
||
| } |