Github user jerrypeng commented on a diff in the pull request:
https://github.com/apache/storm/pull/785#discussion_r42042650
--- Diff:
storm-core/src/jvm/backtype/storm/validation/ConfigValidation.java ---
@@ -0,0 +1,518 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.
+ */
+
+package backtype.storm.validation;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.util.HashSet;
+import java.util.Map;
+
+/**
+ * Provides functionality for validating configuration fields.
+ */
+public class ConfigValidation {
+
+ private static final Class CONFIG_CLASS = backtype.storm.Config.class;
+
+ private static final Logger LOG =
LoggerFactory.getLogger(ConfigValidation.class);
+
+ public static abstract class Validator {
+ public abstract void validateField(String name, Object o);
+ }
+
+ public abstract static class TypeValidator {
+ public abstract void validateField(String name, Class type, Object
o);
+ }
+
+ /**
+ * Validator definitions
+ */
+
+ /**
+ * Validates if an object is not null
+ */
+
+ public static class NotNullValidator extends Validator {
+
+ @Override
+ public void validateField(String name, Object o) {
+ if (o == null) {
+ throw new IllegalArgumentException("Field " + name +
"cannot be null! Actual value: " + o);
+ }
+ }
+ }
+
+ /**
+ * Validates basic types
+ */
+ public static class SimpleTypeValidator extends TypeValidator {
+
+ public void validateField(String name, Class type, Object o) {
+ if (o == null) {
+ return;
+ }
+ if (type.isInstance(o)) {
+ return;
+ }
+ throw new IllegalArgumentException("Field " + name + " must be
of type " + type + ". Object: " + o + " actual type: " + o.getClass());
+ }
+ }
+
+ public static class StringValidator extends Validator {
+
+ @Override
+ public void validateField(String name, Object o) {
+ SimpleTypeValidator validator = new SimpleTypeValidator();
+ validator.validateField(name, String.class, o);
+ }
+ }
+
+ public static class BooleanValidator extends Validator {
+
+ @Override
+ public void validateField(String name, Object o) {
+ SimpleTypeValidator validator = new SimpleTypeValidator();
+ validator.validateField(name, Boolean.class, o);
+ }
+ }
+
+ public static class NumberValidator extends Validator {
+
+ @Override
+ public void validateField(String name, Object o) {
+ SimpleTypeValidator validator = new SimpleTypeValidator();
+ validator.validateField(name, Number.class, o);
+ }
+ }
+
+ public static class DoubleValidator extends Validator {
+
+ @Override
+ public void validateField(String name, Object o) {
+ SimpleTypeValidator validator = new SimpleTypeValidator();
+ validator.validateField(name, Double.class, o);
+ }
+ }
+
+ /**
+ * Validates a Integer.
+ */
+ public static class IntegerValidator extends Validator {
+
+ @Override
+ public void validateField(String name, Object o) {
+ validateInteger(name, o);
+ }
+
+ public void validateInteger(String name, Object o) {
+ if (o == null) {
+ return;
+ }
+ final long i;
+ if (o instanceof Number &&
+ (i = ((Number) o).longValue()) == ((Number)
o).doubleValue()) {
+ if (i <= Integer.MAX_VALUE && i >= Integer.MIN_VALUE) {
+ return;
+ }
+ }
+ throw new IllegalArgumentException("Field " + name + " must be
an Integer within type range.");
+ }
+ }
+
+ /**
+ * Validates a map of Strings to a map of Strings to a list.
+ * {str -> {str -> [str,str]}
+ */
+ public static class MapOfStringToMapValidator extends Validator {
+
+ @Override
+ public void validateField(String name, Object o) {
+ if (o == null) {
+ return;
+ }
+ ConfigValidationUtils.NestableFieldValidator validator =
ConfigValidationUtils.mapFv(ConfigValidationUtils.fv(String.class, false),
+
ConfigValidationUtils.mapFv(ConfigValidationUtils.fv(String.class, false),
+ ConfigValidationUtils.listFv(String.class,
false), false), true);
+ validator.validateField(name, o);
+ }
+ }
+
+ /**
+ * validates a list of has no dupicates
--- End diff --
will fix
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
