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.item.atomic; 28 29 import gov.nist.secauto.metaschema.core.datatype.adapter.MetaschemaDataTypeProvider; 30 import gov.nist.secauto.metaschema.core.metapath.function.InvalidValueForCastFunctionException; 31 32 import edu.umd.cs.findbugs.annotations.NonNull; 33 34 public interface IBooleanItem extends IAnyAtomicItem { 35 @NonNull 36 IBooleanItem TRUE = new BooleanItemImpl(true); 37 @NonNull 38 IBooleanItem FALSE = new BooleanItemImpl(false); 39 40 @NonNull 41 static IBooleanItem valueOf(boolean value) { 42 return value ? TRUE : FALSE; 43 } 44 45 @NonNull 46 static IBooleanItem valueOf(@NonNull Boolean value) { 47 return value ? TRUE : FALSE; 48 } 49 50 @NonNull 51 static IBooleanItem valueOf(@NonNull String value) { 52 IBooleanItem retval; 53 if ("1".equals(value)) { 54 retval = TRUE; 55 } else { 56 try { 57 Boolean bool = MetaschemaDataTypeProvider.BOOLEAN.parse(value); 58 retval = valueOf(bool); 59 } catch (IllegalArgumentException ex) { 60 throw new InvalidValueForCastFunctionException(String.format("Unable to parse string value '%s'", value), 61 ex); 62 } 63 } 64 return retval; 65 } 66 67 @NonNull 68 static IBooleanItem cast(@NonNull IAnyAtomicItem item) throws InvalidValueForCastFunctionException { 69 return MetaschemaDataTypeProvider.BOOLEAN.cast(item); 70 } 71 72 boolean toBoolean(); 73 74 @NonNull 75 default IBooleanItem negate() { 76 return this.toBoolean() ? FALSE : TRUE; 77 } 78 }