1 /* 2 * Portions of this software was developed by employees of the National Institute 3 * of Standards and Technology (NIST), an agency of the Federal Government and is 4 * being made available as a public service. Pursuant to title 17 United States 5 * Code Section 105, works of NIST employees are not subject to copyright 6 * protection in the United States. This software may be subject to foreign 7 * copyright. Permission in the United States and in foreign countries, to the 8 * extent that NIST may hold copyright, to use, copy, modify, create derivative 9 * works, and distribute this software and its documentation without fee is hereby 10 * granted on a non-exclusive basis, provided that this notice and disclaimer 11 * of warranty appears in all copies. 12 * 13 * THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER 14 * EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY 15 * THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM 17 * INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE 18 * SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE. IN NO EVENT 19 * SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT, 20 * INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM, 21 * OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY, 22 * CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR 23 * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT 24 * OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER. 25 */ 26 27 package gov.nist.secauto.metaschema.core.metapath; 28 29 import gov.nist.secauto.metaschema.core.metapath.item.ItemUtils; 30 import gov.nist.secauto.metaschema.core.metapath.item.node.IDefinitionNodeItem; 31 import gov.nist.secauto.metaschema.core.metapath.item.node.INodeItem; 32 import gov.nist.secauto.metaschema.core.util.CollectionUtil; 33 34 import java.util.List; 35 36 import edu.umd.cs.findbugs.annotations.NonNull; 37 38 class Name // NOPMD - intentional 39 implements IExpression { 40 41 private final String value; 42 43 /** 44 * Create a new literal expression. 45 * 46 * @param value 47 * the literal value 48 */ 49 protected Name(@NonNull String value) { 50 this.value = value; 51 } 52 53 public String getValue() { 54 return value; 55 } 56 57 @Override 58 public List<IExpression> getChildren() { 59 return CollectionUtil.emptyList(); 60 } 61 62 @Override 63 public Class<INodeItem> getBaseResultType() { 64 return INodeItem.class; 65 } 66 67 @Override 68 public Class<INodeItem> getStaticResultType() { 69 return getBaseResultType(); 70 } 71 72 @Override 73 public <RESULT, CONTEXT> RESULT accept(IExpressionVisitor<RESULT, CONTEXT> visitor, CONTEXT context) { 74 return visitor.visitName(this, context); 75 } 76 77 @Override 78 public ISequence<? extends INodeItem> accept( 79 DynamicContext dynamicContext, 80 ISequence<?> focus) { 81 return ISequence.of(focus.asStream() 82 .map(item -> ItemUtils.checkItemIsNodeItemForStep(item)) 83 .filter(this::match)); 84 } 85 86 private boolean match(INodeItem item) { 87 return item instanceof IDefinitionNodeItem 88 && getValue().equals(((IDefinitionNodeItem<?, ?>) item).getName()); 89 } 90 91 @SuppressWarnings("null") 92 @Override 93 public String toASTString() { 94 return String.format("%s[value=%s]", getClass().getName(), getValue()); 95 } 96 97 }