fix(impl): [#199] Add BPN validator

irs-policy-store/src/main/java/org/eclipse/tractusx/irs/policystore/controllers/PolicyStoreController.java

@@ -51,6 +51,7 @@
 import org.eclipse.tractusx.irs.policystore.models.PolicyResponse;
 import org.eclipse.tractusx.irs.policystore.models.UpdatePolicyRequest;
 import org.eclipse.tractusx.irs.policystore.services.PolicyStoreService;
+import org.eclipse.tractusx.irs.policystore.validators.BusinessPartnerNumberListValidator;
 import org.springframework.http.HttpStatus;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.DeleteMapping;
@@ -77,7 +78,7 @@
 })
 public class PolicyStoreController {
 
-    public static final String BPN_REGEX = "(BPN)[LSA][\\w\\d]{10}[\\w\\d]{2}";
+    public static final String BPN_REGEX = BusinessPartnerNumberListValidator.BPN_REGEX;
 
     private final PolicyStoreService service;
     private final EdcTransformer edcTransformer;

irs-policy-store/src/main/java/org/eclipse/tractusx/irs/policystore/validators/BusinessPartnerNumberListValidator.java

@@ -0,0 +1,53 @@
+/********************************************************************************
+ * Copyright (c) 2022,2024 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
+ * Copyright (c) 2021,2024 Contributors to the Eclipse Foundation
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information regarding copyright ownership.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License, Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ********************************************************************************/
+package org.eclipse.tractusx.irs.policystore.validators;
+
+import java.util.List;
+import java.util.regex.Pattern;
+
+import jakarta.validation.ConstraintValidator;
+import jakarta.validation.ConstraintValidatorContext;
+
+public class BusinessPartnerNumberListValidator
+        implements ConstraintValidator<ValidListOfBusinessPartnerNumbers, List<String>> {
+
+    public static final String BPN_REGEX = "(BPN)[LSA][\\w\\d]{10}[\\w\\d]{2}";
+
+    private static final Pattern PATTERN = Pattern.compile(BPN_REGEX);
+
+    @Override
+    public boolean isValid(List<String> value, ConstraintValidatorContext context) {
+        if (value == null || value.isEmpty()) {
+            return true;
+        }
+
+        for (int i = 0; i < value.size(); i++) {
+            if (!PATTERN.matcher(value.get(i)).matches()) {
+                context.disableDefaultConstraintViolation();
+                context.buildConstraintViolationWithTemplate(
+                        "The business partner number at index %d is invalid (should conform to pattern '%s')".formatted(
+                                i, BPN_REGEX)).addConstraintViolation();
+                return false;
+            }
+        }
+
+        return true;
+    }
+}

irs-policy-store/src/main/java/org/eclipse/tractusx/irs/policystore/validators/ValidListOfBusinessPartnerNumbers.java

@@ -0,0 +1,43 @@
+/********************************************************************************
+ * Copyright (c) 2022,2024 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
+ * Copyright (c) 2021,2024 Contributors to the Eclipse Foundation
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information regarding copyright ownership.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License, Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ********************************************************************************/
+package org.eclipse.tractusx.irs.policystore.validators;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import jakarta.validation.Constraint;
+import jakarta.validation.Payload;
+
+@Documented
+@Constraint(validatedBy = BusinessPartnerNumberListValidator.class)
+@Target({ ElementType.FIELD,
+          ElementType.PARAMETER
+})
+@Retention(RetentionPolicy.RUNTIME)
+public @interface ValidListOfBusinessPartnerNumbers {
+    String message() default "Invalid list of business partner numbers";
+
+    Class<?>[] groups() default { };
+
+    Class<? extends Payload>[] payload() default { };
+}

irs-policy-store/src/test/java/org/eclipse/tractusx/irs/policystore/validators/BusinessPartnerNumberListValidatorTest.java

@@ -0,0 +1,79 @@
+/********************************************************************************
+ * Copyright (c) 2022,2024 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
+ * Copyright (c) 2021,2024 Contributors to the Eclipse Foundation
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information regarding copyright ownership.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License, Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ********************************************************************************/
+package org.eclipse.tractusx.irs.policystore.validators;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.verify;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import jakarta.validation.ConstraintValidatorContext;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Answers;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Captor;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+@ExtendWith(MockitoExtension.class)
+public class BusinessPartnerNumberListValidatorTest {
+
+    public static final String VALID_BPN_1 = "BPNL1234567890AB";
+    public static final String VALID_BPN_2 = "BPNL123456789012";
+
+    @InjectMocks
+    private BusinessPartnerNumberListValidator validator;
+
+    @Captor
+    private ArgumentCaptor<String> messageCaptor;
+
+    @Mock(answer = Answers.RETURNS_DEEP_STUBS)
+    private ConstraintValidatorContext contextMock;
+
+    @Test
+    void withEmptyListOfStrings() {
+        assertThat(validator.isValid(Collections.emptyList(), contextMock)).isTrue();
+    }
+
+    @Test
+    void withNull() {
+        assertThat(validator.isValid(null, contextMock)).isTrue();
+    }
+
+    @Test
+    void withValidListOfStrings() {
+        List<String> validList = Arrays.asList(VALID_BPN_1, VALID_BPN_2);
+        assertThat(validator.isValid(validList, contextMock)).isTrue();
+    }
+
+    @Test
+    void withListContainingInvalidBPN() {
+        List<String> invalidList = Arrays.asList(VALID_BPN_1, "INVALID_BPN", VALID_BPN_2);
+        assertThat(validator.isValid(invalidList, contextMock)).isFalse();
+        //        verify(contextMock).buildConstraintViolationWithTemplate(
+        ////                startsWith("Element at index 1 does not match the pattern"));
+        verify(contextMock).buildConstraintViolationWithTemplate(messageCaptor.capture());
+        assertThat(messageCaptor.getValue()).contains("BPN").contains(" index 1 ").contains("invalid");
+    }
+}