HV-1541 Adding annotation processor support for ISBN constraint

- Registering new constraint in AP types.
- Adding simple tests to check if AP works correctly with a new constraint.

annotation-processor/src/main/java/org/hibernate/validator/ap/internal/util/ConstraintHelper.java

@@ -292,6 +292,7 @@ public ConstraintHelper(Types typeUtils, AnnotationApiHelper annotationApiHelper
 		registerAllowedTypesForBuiltInConstraint( HibernateValidatorTypes.DURATION_MAX, Duration.class );
 		registerAllowedTypesForBuiltInConstraint( HibernateValidatorTypes.DURATION_MIN, Duration.class );
 		registerAllowedTypesForBuiltInConstraint( HibernateValidatorTypes.EMAIL, CharSequence.class );
+		registerAllowedTypesForBuiltInConstraint( HibernateValidatorTypes.ISBN, CharSequence.class );
 		registerAllowedTypesForBuiltInConstraint( HibernateValidatorTypes.LENGTH, CharSequence.class );
 		registerAllowedTypesForBuiltInConstraint( HibernateValidatorTypes.MOD_CHECK, CharSequence.class );
 		registerAllowedTypesForBuiltInConstraint( HibernateValidatorTypes.LUHN_CHECK, CharSequence.class );

annotation-processor/src/main/java/org/hibernate/validator/ap/internal/util/TypeNames.java

@@ -69,6 +69,7 @@ public static class HibernateValidatorTypes {
 		public static final String CODE_POINT_LENGTH = ORG_HIBERNATE_VALIDATOR_CONSTRAINTS + ".CodePointLength";
 		public static final String CURRENCY = ORG_HIBERNATE_VALIDATOR_CONSTRAINTS + ".Currency";
 		public static final String EMAIL = ORG_HIBERNATE_VALIDATOR_CONSTRAINTS + ".Email";
+		public static final String ISBN = ORG_HIBERNATE_VALIDATOR_CONSTRAINTS + ".ISBN";
 		public static final String LENGTH = ORG_HIBERNATE_VALIDATOR_CONSTRAINTS + ".Length";
 		public static final String MOD_CHECK = ORG_HIBERNATE_VALIDATOR_CONSTRAINTS + ".ModCheck";
 		public static final String LUHN_CHECK = ORG_HIBERNATE_VALIDATOR_CONSTRAINTS + ".LuhnCheck";

annotation-processor/src/test/java/org/hibernate/validator/ap/ConstraintValidationProcessorTest.java

@@ -22,6 +22,7 @@
 import org.hibernate.validator.ap.testmodel.MethodLevelValidationUsingBuiltInConstraints;
 import org.hibernate.validator.ap.testmodel.ModelWithCodePointLengthConstraints;
 import org.hibernate.validator.ap.testmodel.ModelWithDateConstraints;
+import org.hibernate.validator.ap.testmodel.ModelWithISBNConstraints;
 import org.hibernate.validator.ap.testmodel.ModelWithJava8DateTime;
 import org.hibernate.validator.ap.testmodel.ModelWithJavaMoneyTypes;
 import org.hibernate.validator.ap.testmodel.ModelWithJodaTypes;
@@ -722,4 +723,20 @@ public void codePointLengthConstraints() {
 				new DiagnosticExpectation( Kind.ERROR, 23 )
 		);
 	}
+
+	@Test
+	public void isbnConstraints() {
+		File[] sourceFiles = new File[] {
+				compilerHelper.getSourceFile( ModelWithISBNConstraints.class )
+		};
+
+		boolean compilationResult =
+				compilerHelper.compile( new ConstraintValidationProcessor(), diagnostics, false, true, sourceFiles );
+
+		assertFalse( compilationResult );
+		assertThatDiagnosticsMatch(
+				diagnostics,
+				new DiagnosticExpectation( Kind.ERROR, 22 )
+		);
+	}
 }

annotation-processor/src/test/java/org/hibernate/validator/ap/testmodel/ModelWithISBNConstraints.java

@@ -0,0 +1,25 @@
+/*
+ * Hibernate Validator, declare and validate application constraints
+ *
+ * License: Apache License, Version 2.0
+ * See the license.txt file in the root directory or <http://www.apache.org/licenses/LICENSE-2.0>.
+ */
+package org.hibernate.validator.ap.testmodel;
+
+import org.hibernate.validator.constraints.ISBN;
+
+/**
+ * @author Marko Bekhta
+ */
+public class ModelWithISBNConstraints {
+
+	@ISBN
+	private String string;
+
+	@ISBN
+	private CharSequence charSequence;
+
+	@ISBN
+	private Integer integer;
+
+}