- Added new Converter conversions for StringBuffer to StringBuilder t…

…o String.

- Added new ClassUtilities API that allows you to test if one class is a wrapper for another

README.md

@@ -26,15 +26,15 @@ Both of these features ensure that our library can be seamlessly integrated into
 To include in your project:
 ##### Gradle
 ```
-implementation 'com.cedarsoftware:java-util:2.7.0'
+implementation 'com.cedarsoftware:java-util:2.8.0'
 ```
 
 ##### Maven
 ```
 <dependency>
   <groupId>com.cedarsoftware</groupId>
   <artifactId>java-util</artifactId>
-  <version>2.7.0</version>
+  <version>2.8.0</version>
 </dependency>
 ```
 ---

changelog.md

@@ -1,4 +1,7 @@
 ### Revision History
+* 2.8.0
+  * Added `ClassUtilities.doesOneWrapTheOther()` API so that it is easy to test if one class is wrapping the other.
+  * Added `StringBuilder` and `StringBuffer`  to `Strings` to the `Converter.` Eliminates special cases for `.toString()` calls where generalized `convert(src, type)` is being used.
 * 2.7.0
   * Added `ConcurrentHashList,` which implements a thread-safe `List.` Provides all API support except for `listIterator(),` however, it implements `iterator()` which returns an iterator to a snapshot copy of the `List.` 
   * Added `ConcurrentHashSet,` a true `Set` which is a bit easier to use than `ConcurrentSkipListSet,` which as a `NaviableSet` and `SortedSet,` requires each element to be `Comparable.`

pom.xml

@@ -5,7 +5,7 @@
     <groupId>com.cedarsoftware</groupId>
     <artifactId>java-util</artifactId>
     <packaging>bundle</packaging>
-    <version>2.7.0</version>
+    <version>2.8.0</version>
     <description>Java Utilities</description>
     <url>https://github.com/jdereg/java-util</url>
 

src/main/java/com/cedarsoftware/util/ClassUtilities.java

@@ -40,9 +40,9 @@
 public class ClassUtilities
 {
     private static final Set<Class<?>> prims = new HashSet<>();
-
     private static final Map<Class<?>, Class<?>> primitiveToWrapper = new HashMap<>(20, .8f);
     private static final Map<String, Class<?>> nameToClass = new HashMap<>();
+    private static final Map<Class<?>, Class<?>> wrapperMap = new HashMap<>();
 
     static
     {
@@ -76,6 +76,23 @@ public class ClassUtilities
         primitiveToWrapper.put(byte.class, Byte.class);
         primitiveToWrapper.put(short.class, Short.class);
         primitiveToWrapper.put(void.class, Void.class);
+
+        wrapperMap.put(int.class, Integer.class);
+        wrapperMap.put(Integer.class, int.class);
+        wrapperMap.put(char.class, Character.class);
+        wrapperMap.put(Character.class, char.class);
+        wrapperMap.put(byte.class, Byte.class);
+        wrapperMap.put(Byte.class, byte.class);
+        wrapperMap.put(short.class, Short.class);
+        wrapperMap.put(Short.class, short.class);
+        wrapperMap.put(long.class, Long.class);
+        wrapperMap.put(Long.class, long.class);
+        wrapperMap.put(float.class, Float.class);
+        wrapperMap.put(Float.class, float.class);
+        wrapperMap.put(double.class, Double.class);
+        wrapperMap.put(Double.class, double.class);
+        wrapperMap.put(boolean.class, Boolean.class);
+        wrapperMap.put(Boolean.class, boolean.class);
     }
 
     /**
@@ -178,7 +195,6 @@ private static int comparePrimitiveToWrapper(Class<?> source, Class<?> destinati
         }
     }
 
-
     /**
      * Given the passed in String class name, return the named JVM class.
      * @param name String name of a JVM class.
@@ -333,5 +349,7 @@ public static Class<?> toPrimitiveWrapperClass(Class<?> primitiveClass) {
         return c;
     }
 
-
+    public static boolean doesOneWrapTheOther(Class<?> x, Class<?> y) {
+        return wrapperMap.get(x) == y;
+    }
 }

src/main/java/com/cedarsoftware/util/convert/Converter.java

@@ -658,7 +658,9 @@ private static void buildFactoryConversions() {
         CONVERSION_DB.put(pair(URL.class, String.class), StringConversions::toString);
         CONVERSION_DB.put(pair(URI.class, String.class), StringConversions::toString);
         CONVERSION_DB.put(pair(TimeZone.class, String.class), TimeZoneConversions::toString);
-
+        CONVERSION_DB.put(pair(StringBuilder.class, String.class), StringBuilderConversions::toString);
+        CONVERSION_DB.put(pair(StringBuffer.class, String.class), StringBufferConversions::toString);
+
         // URL conversions
         CONVERSION_DB.put(pair(Void.class, URL.class), VoidConversions::toNull);
         CONVERSION_DB.put(pair(URL.class, URL.class), Converter::identity);

src/main/java/com/cedarsoftware/util/convert/StringBufferConversions.java

@@ -0,0 +1,27 @@
+package com.cedarsoftware.util.convert;
+
+/**
+ * @author John DeRegnaucourt ([email protected])
+ *         <br>
+ *         Copyright (c) Cedar Software LLC
+ *         <br><br>
+ *         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
+ *         <br><br>
+ *         <a href="http://www.apache.org/licenses/LICENSE-2.0">License</a>
+ *         <br><br>
+ *         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.
+ */
+final class StringBufferConversions {
+
+    private StringBufferConversions() {}
+
+    static String toString(Object from, Converter converter) {
+        return from.toString();
+    }
+}

src/main/java/com/cedarsoftware/util/convert/StringBuilderConversions.java

@@ -0,0 +1,27 @@
+package com.cedarsoftware.util.convert;
+
+/**
+ * @author John DeRegnaucourt ([email protected])
+ *         <br>
+ *         Copyright (c) Cedar Software LLC
+ *         <br><br>
+ *         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
+ *         <br><br>
+ *         <a href="http://www.apache.org/licenses/LICENSE-2.0">License</a>
+ *         <br><br>
+ *         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.
+ */
+final class StringBuilderConversions {
+
+    private StringBuilderConversions() {}
+
+    static String toString(Object from, Converter converter) {
+        return from.toString();
+    }
+}