#1747 - Refactor tidy remove unused ParamTypeUtil

src/main/java/io/ebeaninternal/server/deploy/ParamTypeUtil.java

@@ -1,79 +0,0 @@
-package io.ebeaninternal.server.deploy;
-
-import java.lang.reflect.ParameterizedType;
-import java.lang.reflect.Type;
-
-/**
- * Helper object to find generic parameter types for a given class.
- */
-class ParamTypeUtil {
-
-  /**
-   * Find and return the parameter type given a generic interface or class.
-   * <p>
-   * This assumes there is only one generic parameter.
-   * </p>
-   * <p>
-   * Returns null if no match was found.
-   * </p>
-   *
-   * @param cls       the class to search for the parameter type
-   * @param matchType the type which has the generic parameter
-   */
-  public static Class<?> findParamType(Class<?> cls, Class<?> matchType) {
-
-    // search for: implementing a generic interface
-    Type paramType = matchByInterfaces(cls, matchType);
-    if (paramType == null) {
-      // search for: extending a generic class
-      Type genericSuperclass = cls.getGenericSuperclass();
-      if (genericSuperclass != null) {
-        paramType = matchParamType(genericSuperclass, matchType);
-      }
-    }
-
-    if (paramType instanceof Class<?>) {
-      // only interested in classes
-      return (Class<?>) paramType;
-    } else {
-      return null;
-    }
-  }
-
-  /**
-   * Check if the type is a generic one with parameters and of the correct type we are
-   * searching for. Return the parameter type if this matches otherwise return null.
-   */
-  private static Type matchParamType(Type type, Class<?> matchType) {
-    if (type instanceof ParameterizedType) {
-      ParameterizedType pt = (ParameterizedType) type;
-      Type rawType = pt.getRawType();
-      boolean isAssignable = matchType.isAssignableFrom((Class<?>) rawType);
-      if (isAssignable) {
-        // assume there is only one parameter type
-        Type[] typeArguments = pt.getActualTypeArguments();
-        if (typeArguments.length != 1) {
-          String m = "Expecting only 1 generic paramater but got " + typeArguments.length + " for " + type;
-          throw new RuntimeException(m);
-        }
-        return typeArguments[0];
-      }
-    }
-    return null;
-  }
-
-  /**
-   * Search the interfaces this class implements.
-   */
-  private static Type matchByInterfaces(Class<?> cls, Class<?> matchType) {
-
-    Type[] gis = cls.getGenericInterfaces();
-    for (Type gi : gis) {
-      Type match = matchParamType(gi, matchType);
-      if (match != null) {
-        return match;
-      }
-    }
-    return null;
-  }
-}