001/* 002 * Portions of this software was developed by employees of the National Institute 003 * of Standards and Technology (NIST), an agency of the Federal Government and is 004 * being made available as a public service. Pursuant to title 17 United States 005 * Code Section 105, works of NIST employees are not subject to copyright 006 * protection in the United States. This software may be subject to foreign 007 * copyright. Permission in the United States and in foreign countries, to the 008 * extent that NIST may hold copyright, to use, copy, modify, create derivative 009 * works, and distribute this software and its documentation without fee is hereby 010 * granted on a non-exclusive basis, provided that this notice and disclaimer 011 * of warranty appears in all copies. 012 * 013 * THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER 014 * EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY 015 * THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF 016 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM 017 * INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE 018 * SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE. IN NO EVENT 019 * SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT, 020 * INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM, 021 * OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY, 022 * CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR 023 * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT 024 * OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER. 025 */ 026 027package gov.nist.secauto.metaschema.core.metapath.item.atomic; 028 029import gov.nist.secauto.metaschema.core.datatype.adapter.MetaschemaDataTypeProvider; 030import gov.nist.secauto.metaschema.core.metapath.function.InvalidValueForCastFunctionException; 031 032import edu.umd.cs.findbugs.annotations.NonNull; 033 034public interface IBooleanItem extends IAnyAtomicItem { 035 @NonNull 036 IBooleanItem TRUE = new BooleanItemImpl(true); 037 @NonNull 038 IBooleanItem FALSE = new BooleanItemImpl(false); 039 040 @NonNull 041 static IBooleanItem valueOf(boolean value) { 042 return value ? TRUE : FALSE; 043 } 044 045 @NonNull 046 static IBooleanItem valueOf(@NonNull Boolean value) { 047 return value ? TRUE : FALSE; 048 } 049 050 @NonNull 051 static IBooleanItem valueOf(@NonNull String value) { 052 IBooleanItem retval; 053 if ("1".equals(value)) { 054 retval = TRUE; 055 } else { 056 try { 057 Boolean bool = MetaschemaDataTypeProvider.BOOLEAN.parse(value); 058 retval = valueOf(bool); 059 } catch (IllegalArgumentException ex) { 060 throw new InvalidValueForCastFunctionException(String.format("Unable to parse string value '%s'", value), 061 ex); 062 } 063 } 064 return retval; 065 } 066 067 @NonNull 068 static IBooleanItem cast(@NonNull IAnyAtomicItem item) throws InvalidValueForCastFunctionException { 069 return MetaschemaDataTypeProvider.BOOLEAN.cast(item); 070 } 071 072 boolean toBoolean(); 073 074 @NonNull 075 default IBooleanItem negate() { 076 return this.toBoolean() ? FALSE : TRUE; 077 } 078}