added custom validators for use with openpojo

Change-Id: I7c9fdeb6bccddb1b7ec6bf845351731c3043aafa
Issue-ID: SO-510
Signed-off-by: Benjamin, Max (mb388a) <mb388a@us.att.com>

7 files changed, 513 insertions, 0 deletions

diff --git a/common/src/main/java/org/openecomp/mso/openpojo/rules/CustomSetterMustExistRule.java b/common/src/main/java/org/openecomp/mso/openpojo/rules/CustomSetterMustExistRule.java
new file mode 100644
index 0000000000..fa24662d69
--- /dev/null
+++ b/common/src/main/java/org/openecomp/mso/openpojo/rules/CustomSetterMustExistRule.java
@@ -0,0 +1,58 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.mso.openpojo.rules;
+
+import static org.hamcrest.CoreMatchers.anyOf;
+import static org.hamcrest.CoreMatchers.anything;
+import static org.hamcrest.CoreMatchers.not;
+
+import org.hamcrest.Matcher;
+
+import com.openpojo.reflection.PojoClass;
+import com.openpojo.reflection.PojoField;
+import com.openpojo.validation.affirm.Affirm;
+import com.openpojo.validation.rule.Rule;
+
+public class CustomSetterMustExistRule implements Rule {
+
+	private Matcher<PojoField>[] excludeMatchers = new Matcher[]{not(anything())};
+	private Matcher<PojoField>[] includeMatchers = new Matcher[]{anything()};
+	public CustomSetterMustExistRule() {
+	}
+	@Override
+	public void evaluate(final PojoClass pojoClass) {
+		for (PojoField fieldEntry : pojoClass.getPojoFields()) {
+			if (!anyOf(excludeMatchers).matches(fieldEntry) && anyOf(includeMatchers).matches(fieldEntry) && !fieldEntry.isFinal() && !fieldEntry.hasSetter()) {
+				Affirm.fail(String.format("[%s] is missing a setter", fieldEntry));
+			}
+		}
+	}
+	public CustomSetterMustExistRule exclude(Matcher<PojoField>... excludeMatchers) {
+		this.excludeMatchers = excludeMatchers;
+		return this;
+	}
+
+	public CustomSetterMustExistRule include(Matcher<PojoField>... includeMatchers) {
+		this.includeMatchers = includeMatchers;
+		return this;
+	}
+
+}
diff --git a/common/src/main/java/org/openecomp/mso/openpojo/rules/EqualsAndHashCodeTester.java b/common/src/main/java/org/openecomp/mso/openpojo/rules/EqualsAndHashCodeTester.java
new file mode 100644
index 0000000000..f4192e6cc8
--- /dev/null
+++ b/common/src/main/java/org/openecomp/mso/openpojo/rules/EqualsAndHashCodeTester.java
@@ -0,0 +1,103 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.mso.openpojo.rules;
+
+import static org.hamcrest.CoreMatchers.anyOf;
+import static org.hamcrest.CoreMatchers.anything;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import javax.persistence.Id;
+
+import org.hamcrest.Matcher;
+
+import com.openpojo.business.annotation.BusinessKey;
+import com.openpojo.random.RandomFactory;
+import com.openpojo.reflection.PojoClass;
+import com.openpojo.reflection.PojoField;
+import com.openpojo.validation.affirm.Affirm;
+import com.openpojo.validation.test.Tester;
+import com.openpojo.validation.utils.ValidationHelper;
+
+public class EqualsAndHashCodeTester implements Tester {
+
+	
+	private final Matcher m;
+	public EqualsAndHashCodeTester() {
+		m = anything();
+	}
+	
+	public EqualsAndHashCodeTester(Matcher m) {
+		this.m = m;
+	}
+	@Override
+	public void run(PojoClass pojoClass) {
+		Class<?> clazz = pojoClass.getClazz();
+		if (anyOf(m).matches(clazz)) {
+			final Object classInstanceOne = ValidationHelper.getBasicInstance(pojoClass);
+			final Object classInstanceTwo = ValidationHelper.getBasicInstance(pojoClass);
+			Set<PojoField> identityFields = hasIdOrBusinessKey(pojoClass);
+			List<PojoField> otherFields = new ArrayList<>(pojoClass.getPojoFields());
+			otherFields.removeAll(identityFields);
+			
+			for (PojoField field : identityFields) {
+				final Object value  = RandomFactory.getRandomValue(field);
+	
+				field.invokeSetter(classInstanceOne, value);
+				field.invokeSetter(classInstanceTwo, value);
+			}
+			
+			for (PojoField field : otherFields) {
+				if (field.hasSetter()) {
+					final Object valueOne  = RandomFactory.getRandomValue(field);
+					final Object valueTwo  = RandomFactory.getRandomValue(field);
+					
+					field.invokeSetter(classInstanceOne, valueOne);
+					field.invokeSetter(classInstanceTwo, valueTwo);
+				}
+			}
+			
+			Affirm.affirmTrue("Equals test failed for [" + classInstanceOne.getClass().getName() + "]", classInstanceOne.equals(classInstanceTwo));
+			
+			Affirm.affirmTrue("Equals test failed for [" + classInstanceOne.getClass().getName() + "]", classInstanceOne.equals(
+					classInstanceOne));
+			
+			Affirm.affirmTrue("HashCode test failed for [" + classInstanceOne.getClass().getName() + "]", classInstanceOne.hashCode() == classInstanceTwo.hashCode());
+			
+			Affirm.affirmFalse("Expected false for comparison of two unlike objects", classInstanceOne.equals("test"));
+		}
+	}
+	
+	
+	private Set<PojoField> hasIdOrBusinessKey(PojoClass pojoClass) {
+		final Set<PojoField> fields = new HashSet<>();
+		
+		fields.addAll(pojoClass.getPojoFieldsAnnotatedWith(BusinessKey.class));
+		fields.addAll(pojoClass.getPojoFieldsAnnotatedWith(Id.class));
+		
+		return fields;
+		
+	}
+
+}
diff --git a/common/src/main/java/org/openecomp/mso/openpojo/rules/HasAnnotationMatcher.java b/common/src/main/java/org/openecomp/mso/openpojo/rules/HasAnnotationMatcher.java
new file mode 100644
index 0000000000..fdfb9695e7
--- /dev/null
+++ b/common/src/main/java/org/openecomp/mso/openpojo/rules/HasAnnotationMatcher.java
@@ -0,0 +1,69 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.mso.openpojo.rules;
+
+import static org.hamcrest.CoreMatchers.anything;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.AnnotatedElement;
+
+import org.hamcrest.Description;
+import org.hamcrest.Matcher;
+import org.hamcrest.TypeSafeDiagnosingMatcher;
+
+public class HasAnnotationMatcher<T extends Annotation> extends TypeSafeDiagnosingMatcher<AnnotatedElement> {
+	private final Class<T> annotationType;
+	private final Matcher<? super T> annotationMatcher;
+
+	public HasAnnotationMatcher(final Class<T> annotationType, final Matcher<? super T> annotationMatcher) {
+		this.annotationType = annotationType;
+		this.annotationMatcher = annotationMatcher;
+	}
+
+	@Override
+	protected boolean matchesSafely(final AnnotatedElement item, final Description mismatchDescription) {
+		final T annotation = item.getAnnotation(this.annotationType);
+		if (annotation == null) {
+			mismatchDescription.appendText("does not have annotation ").appendText(this.annotationType.getName());
+			return false;
+		}
+
+		if (!this.annotationMatcher.matches(annotation)) {
+			this.annotationMatcher.describeMismatch(annotation, mismatchDescription);
+			return false;
+		}
+
+		return true;
+	}
+
+	@Override
+	public void describeTo(final Description description) {
+		// Intentionally left blank.
+	}
+
+	public static Matcher<AnnotatedElement> hasAnnotation(final Class<? extends Annotation> annotationType) {
+		return hasAnnotation(annotationType, anything(""));
+	}
+
+	public static <T extends Annotation> Matcher<AnnotatedElement> hasAnnotation(final Class<T> annotationType, final Matcher<? super T> annotationMatcher) {
+		return new HasAnnotationMatcher<T>(annotationType, annotationMatcher);
+	}
+}
diff --git a/common/src/main/java/org/openecomp/mso/openpojo/rules/HasAnnotationPropertyWithValueMatcher.java b/common/src/main/java/org/openecomp/mso/openpojo/rules/HasAnnotationPropertyWithValueMatcher.java
new file mode 100644
index 0000000000..f0c1b18df2
--- /dev/null
+++ b/common/src/main/java/org/openecomp/mso/openpojo/rules/HasAnnotationPropertyWithValueMatcher.java
@@ -0,0 +1,75 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.mso.openpojo.rules;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import org.hamcrest.Description;
+import org.hamcrest.Matcher;
+import org.hamcrest.TypeSafeDiagnosingMatcher;
+
+import com.openpojo.reflection.PojoField;
+
+public class HasAnnotationPropertyWithValueMatcher<T extends PojoField> extends TypeSafeDiagnosingMatcher<T> {
+	private final String attribute;
+	private final Matcher<?> annotationMatcher;
+	private final Class<? extends Annotation> annotationClass;
+	public HasAnnotationPropertyWithValueMatcher(Class<? extends Annotation> clazz, String attribute, final Matcher<?> annotationMatcher) {
+		this.attribute = attribute;
+		this.annotationMatcher = annotationMatcher;
+		this.annotationClass = clazz;
+	}
+
+	@Override
+	protected boolean matchesSafely(T obj, final Description mismatchDescription) {
+		final PojoField temp = (PojoField)obj;
+		final Method method;
+		try {
+			Annotation a = temp.getAnnotation(this.annotationClass);
+			if (a == null) {
+				mismatchDescription.appendText("does not have annotation ").appendText(this.annotationClass.getSimpleName());
+				return false;
+			}
+			method = a.getClass().getMethod(attribute);
+			final Object result = method.invoke(a);
+			if (!this.annotationMatcher.matches(result)) {
+				this.annotationMatcher.describeMismatch(result, mismatchDescription);
+				return false;
+			}
+		} catch (NoSuchMethodException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
+			mismatchDescription.appendText("does not have property ").appendText(attribute);
+			return false;
+		}
+		return true;
+	}
+
+	@Override
+	public void describeTo(final Description description) {
+		// Intentionally left blank.
+	}
+
+	public static <T extends PojoField> Matcher<T> hasAnnotationPropertyWithValue(Class<? extends Annotation> clazz, String attribute, final Matcher<?> annotationMatcher) {
+		return new HasAnnotationPropertyWithValueMatcher<T>(clazz, attribute, annotationMatcher);
+	}
+}
diff --git a/common/src/main/java/org/openecomp/mso/openpojo/rules/HasEqualsAndHashCodeRule.java b/common/src/main/java/org/openecomp/mso/openpojo/rules/HasEqualsAndHashCodeRule.java
new file mode 100644
index 0000000000..4ef560721f
--- /dev/null
+++ b/common/src/main/java/org/openecomp/mso/openpojo/rules/HasEqualsAndHashCodeRule.java
@@ -0,0 +1,81 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.mso.openpojo.rules;
+
+import static org.hamcrest.CoreMatchers.anyOf;
+import static org.hamcrest.CoreMatchers.anything;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.Parameter;
+
+import org.hamcrest.Matcher;
+
+import com.openpojo.reflection.PojoClass;
+import com.openpojo.validation.affirm.Affirm;
+import com.openpojo.validation.rule.Rule;
+
+/**
+ * This rule ensures that classes have overriden the default equals and hashCode methods from Object
+ */
+public class HasEqualsAndHashCodeRule implements Rule {
+
+	private final Matcher m;
+	public HasEqualsAndHashCodeRule() {
+		m = anything();
+	}
+	
+	public HasEqualsAndHashCodeRule(Matcher m) {
+		this.m = m;
+	}
+	@Override
+	public void evaluate(PojoClass pojoClass) {
+		Class<?> clazz = pojoClass.getClazz();
+		if (anyOf(m).matches(clazz)) { 
+			boolean hasEquals = false;
+			boolean hasHashCode = false;
+			final String name = clazz.getSimpleName();
+			final Method[] methods;
+			if (clazz.getSuperclass().equals(Object.class)) {
+				methods = clazz.getDeclaredMethods();
+			} else {
+				methods = clazz.getMethods();
+			}
+			for (Method method : methods) {
+				Parameter[] parameters = method.getParameters();
+				if ("equals".equals(method.getName()) && boolean.class.equals(method.getReturnType()) && parameters.length == 1 && Object.class.equals(parameters[0].getType())) {
+					hasEquals = true;
+				} else if ("hashCode".equals(method.getName()) && int.class.equals(method.getReturnType())) {
+					hasHashCode = true;
+				}
+			}
+			
+			if (!hasEquals) {
+				Affirm.fail(String.format(
+						"[%s] does not override equals", name));
+			}
+			if (!hasHashCode) {
+				Affirm.fail(String.format(
+						"[%s] does not override hashCode", name));
+			}
+		}
+	}
+
+}
diff --git a/common/src/main/java/org/openecomp/mso/openpojo/rules/HasToStringRule.java b/common/src/main/java/org/openecomp/mso/openpojo/rules/HasToStringRule.java
new file mode 100644
index 0000000000..f866650d66
--- /dev/null
+++ b/common/src/main/java/org/openecomp/mso/openpojo/rules/HasToStringRule.java
@@ -0,0 +1,72 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.mso.openpojo.rules;
+
+import static org.hamcrest.CoreMatchers.anyOf;
+import static org.hamcrest.CoreMatchers.anything;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.Parameter;
+
+import org.hamcrest.Matcher;
+
+import com.openpojo.reflection.PojoClass;
+import com.openpojo.validation.affirm.Affirm;
+import com.openpojo.validation.rule.Rule;
+
+public class HasToStringRule implements Rule {
+	
+	private final Matcher m;
+	public HasToStringRule() {
+		m = anything();
+	}
+	
+	public HasToStringRule(Matcher m) {
+		this.m = m;
+	}
+	@Override
+	public void evaluate(PojoClass pojoClass) {
+		Class<?> clazz = pojoClass.getClazz();
+		if (anyOf(m).matches(clazz)) { 
+			boolean hasToString = false;
+			final String name = clazz.getSimpleName();
+			final Method[] methods;
+			if (clazz.getSuperclass().equals(Object.class)) {
+				methods = clazz.getDeclaredMethods();
+			} else {
+				methods = clazz.getMethods();
+			}
+			for (Method method : methods) {
+				Parameter[] parameters = method.getParameters();
+				if ("toString".equals(method.getName()) && String.class.equals(method.getReturnType()) && parameters.length == 0) {
+					hasToString = true;
+					break;
+				}
+			}
+			
+			if (!hasToString) {
+				Affirm.fail(String.format(
+						"[%s] does not override toString", name));
+			}
+		}
+	}
+
+}
diff --git a/common/src/main/java/org/openecomp/mso/openpojo/rules/ToStringTester.java b/common/src/main/java/org/openecomp/mso/openpojo/rules/ToStringTester.java
new file mode 100644
index 0000000000..bd582d45dc
--- /dev/null
+++ b/common/src/main/java/org/openecomp/mso/openpojo/rules/ToStringTester.java
@@ -0,0 +1,55 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.mso.openpojo.rules;
+
+import static org.hamcrest.CoreMatchers.anyOf;
+import static org.hamcrest.CoreMatchers.anything;
+
+import org.hamcrest.Matcher;
+
+import com.openpojo.reflection.PojoClass;
+import com.openpojo.validation.affirm.Affirm;
+import com.openpojo.validation.test.Tester;
+import com.openpojo.validation.utils.ValidationHelper;
+
+public class ToStringTester implements Tester {
+
+	private final Matcher m;
+	public ToStringTester() {
+		m = anything();
+	}
+	
+	public ToStringTester(Matcher m) {
+		this.m = m;
+	}
+	
+	@Override
+	public void run(PojoClass pojoClass) {
+		Class<?> clazz = pojoClass.getClazz();
+		if (anyOf(m).matches(clazz)) {
+			final Object classInstance = ValidationHelper.getBasicInstance(pojoClass);
+			
+			Affirm.affirmFalse("Found default toString output", classInstance.toString().matches(Object.class.getName() + "@" + "\\w+"));
+		}
+		
+	}
+
+}