content: /*
   * Original work Copyright (c) 2005-2008, The Android Open Source Project
   * Modified work Copyright (c) 2013, rovo89 and Tungstwenty
   * Modified work Copyright (c) 2015, Alibaba Mobile Infrastructure (Android) Team
   *
   * 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.
   */
  
  package com.taobao.android.dexposed;
  
  import com.taobao.android.dexposed.HookArt.utils.HookLog;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.LinkedHashSet;
  import java.util.List;
  import java.util.Map;
  
  
  /**
   * <p>Operates on classes without using reflection.</p>
   * <p>
   * <p>This class handles invalid {@code null} inputs as best it can.
   * Each method documents its behaviour in more detail.</p>
   * <p>
   * <p>The notion of a {@code canonical name} includes the human
   * readable name for the type, for example {@code int[]}. The
   * non-canonical method variants work with the JVM names, such as
   * {@code [I}. </p>
   *
   * @version $Id: ClassUtils.java 1199894 2011-11-09 17:53:59Z ggregory $
   * @since 2.0
   */
  public class ClassUtils {
  
      /**
       * <p>The package separator character: <code>'&#x2e;' == {@value}</code>.</p>
       */
      public static final char PACKAGE_SEPARATOR_CHAR = '.';
  
      /**
       * <p>The package separator String: {@code "&#x2e;"}.</p>
       */
      public static final String PACKAGE_SEPARATOR = String.valueOf(PACKAGE_SEPARATOR_CHAR);
  
      /**
       * <p>The inner class separator character: <code>'$' == {@value}</code>.</p>
       */
      public static final char INNER_CLASS_SEPARATOR_CHAR = '$';
  
      /**
       * <p>The inner class separator String: {@code "$"}.</p>
       */
      public static final String INNER_CLASS_SEPARATOR = String.valueOf(INNER_CLASS_SEPARATOR_CHAR);
  
      /**
       * <p>Empty string.</p>
       */
      public static final String STRING_EMPTY = "";
  
      /**
       * Maps primitive {@code Class}es to their corresponding wrapper {@code Class}.
       */
      private static final Map<Class<?>, Class<?>> primitiveWrapperMap = new HashMap<Class<?>, Class<?>>();
  
      static {
          primitiveWrapperMap.put(Boolean.TYPE, Boolean.class);
          primitiveWrapperMap.put(Byte.TYPE, Byte.class);
          primitiveWrapperMap.put(Character.TYPE, Character.class);
          primitiveWrapperMap.put(Short.TYPE, Short.class);
          primitiveWrapperMap.put(Integer.TYPE, Integer.class);
          primitiveWrapperMap.put(Long.TYPE, Long.class);
          primitiveWrapperMap.put(Double.TYPE, Double.class);
          primitiveWrapperMap.put(Float.TYPE, Float.class);
          primitiveWrapperMap.put(Void.TYPE, Void.TYPE);
      }
  
      /**
       * Maps wrapper {@code Class}es to their corresponding primitive types.
       */
      private static final Map<Class<?>, Class<?>> wrapperPrimitiveMap = new HashMap<Class<?>, Class<?>>();
  
      static {
          for (Class<?> primitiveClass : primitiveWrapperMap.keySet()) {
              Class<?> wrapperClass = primitiveWrapperMap.get(primitiveClass);
              if (!primitiveClass.equals(wrapperClass)) {
                  wrapperPrimitiveMap.put(wrapperClass, primitiveClass);
              }
          }
      }
  
      /**
       * Maps a primitive class name to its corresponding abbreviation used in array class names.
       */
      private static final Map<String, String> abbreviationMap = new HashMap<String, String>();
  
      /**
       * Maps an abbreviation used in array class names to corresponding primitive class name.
       */
      private static final Map<String, String> reverseAbbreviationMap = new HashMap<String, String>();
  
      /**
       * Add primitive type abbreviation to maps of abbreviations.
       *
       * @param primitive    Canonical name of primitive type
       * @param abbreviation Corresponding abbreviation of primitive type
       */
      private static void addAbbreviation(String primitive, String abbreviation) {
          abbreviationMap.put(primitive, abbreviation);
          reverseAbbreviationMap.put(abbreviation, primitive);
      }
  
      /**
       * Feed abbreviation maps
       */
      static {
          addAbbreviation("int", "I");
          addAbbreviation("boolean", "Z");
          addAbbreviation("float", "F");
          addAbbreviation("long", "J");
          addAbbreviation("short", "S");
          addAbbreviation("byte", "B");
          addAbbreviation("double", "D");
          addAbbreviation("char", "C");
      }
  
      /**
       * <p>ClassUtils instances should NOT be constructed in standard programming.
       * Instead, the class should be used as
       * {@code ClassUtils.getShortClassName(cls)}.</p>
       * <p>
       * <p>This constructor is public to permit tools that require a JavaBean
       * instance to operate.</p>
       */
      public ClassUtils() {
          super();
      }
  
      // Short class name
      // ----------------------------------------------------------------------
  
      /**
       * <p>Gets the class name minus the package name for an {@code Object}.</p>
       *
       * @param object      the class to get the short name for, may be null
       * @param valueIfNull the value to return if null
       * @return the class name of the object without the package name, or the null value
       */
      public static String getShortClassName(Object object, String valueIfNull) {
          if (object == null) {
              return valueIfNull;
          }
          return getShortClassName(object.getClass());
      }
  
      /**
       * <p>Gets the class name minus the package name from a {@code Class}.</p>
       * <p>
       * <p>Consider using the Java 5 API {@link Class#getSimpleName()} instead.
       * The one known difference is that this code will return {@code "Map.Entry"} while
       * the {@code java.lang.Class} variant will simply return {@code "Entry"}. </p>
       *
       * @param cls the class to get the short name for.
       * @return the class name without the package name or an empty string
       */
      public static String getShortClassName(Class<?> cls) {
          if (cls == null) {
              return "";
          }
          return getShortClassName(cls.getName());
      }
  
      /**
       * <p>Gets the class name minus the package name from a String.</p>
       * <p>
       * <p>The string passed in is assumed to be a class name - it is not checked.</p>
       * <p>
       * <p>Note that this method differs from Class.getSimpleName() in that this will
       * return {@code "Map.Entry"} whilst the {@code java.lang.Class} variant will simply
       * return {@code "Entry"}. </p>
       *
       * @param className the className to get the short name for
       * @return the class name of the class without the package name or an empty string
       */
      public static String getShortClassName(String className) {
          if (className == null) {
              return STRING_EMPTY;
          }
          if (className.length() == 0) {
              return STRING_EMPTY;
          }
          StringBuilder arrayPrefix = new StringBuilder();
          // Handle array encoding
          if (className.startsWith("[")) {
              while (className.charAt(0) == '[') {
                  className = className.substring(1);
                  arrayPrefix.append("[]");
              }
              // Strip Object type encoding
              if (className.charAt(0) == 'L' && className.charAt(className.length() - 1) == ';') {
                  className = className.substring(1, className.length() - 1);
              }
          }
          if (reverseAbbreviationMap.containsKey(className)) {
              className = reverseAbbreviationMap.get(className);
          }
          int lastDotIdx = className.lastIndexOf(PACKAGE_SEPARATOR_CHAR);
          int innerIdx = className.indexOf(
                  INNER_CLASS_SEPARATOR_CHAR, lastDotIdx == -1 ? 0 : lastDotIdx + 1);
          String out = className.substring(lastDotIdx + 1);
          if (innerIdx != -1) {
              out = out.replace(INNER_CLASS_SEPARATOR_CHAR, PACKAGE_SEPARATOR_CHAR);
          }
          return out + arrayPrefix;
      }
  
      /**
       * <p>Null-safe version of <code>aClass.getSimpleName()</code></p>
       *
       * @param cls the class for which to get the simple name.
       * @return the simple class name.
       * @see Class#getSimpleName()
       * @since 3.0
       */
      public static String getSimpleName(Class<?> cls) {
          if (cls == null) {
              return STRING_EMPTY;
          }
          return cls.getSimpleName();
      }
  
      /**
       * <p>Null-safe version of <code>aClass.getSimpleName()</code></p>
       *
       * @param object      the object for which to get the simple class name.
       * @param valueIfNull the value to return if <code>object</code> is <code>null</code>
       * @return the simple class name.
       * @see Class#getSimpleName()
       * @since 3.0
       */
      public static String getSimpleName(Object object, String valueIfNull) {
          if (object == null) {
              return valueIfNull;
          }
          return getSimpleName(object.getClass());
      }
  
      // Package name
      // ----------------------------------------------------------------------
  
      /**
       * <p>Gets the package name of an {@code Object}.</p>
       *
       * @param object      the class to get the package name for, may be null
       * @param valueIfNull the value to return if null
       * @return the package name of the object, or the null value
       */
      public static String getPackageName(Object object, String valueIfNull) {
          if (object == null) {
              return valueIfNull;
          }
          return getPackageName(object.getClass());
      }
  
      /**
       * <p>Gets the package name of a {@code Class}.</p>
       *
       * @param cls the class to get the package name for, may be {@code null}.
       * @return the package name or an empty string
       */
      public static String getPackageName(Class<?> cls) {
          if (cls == null) {
              return STRING_EMPTY;
          }
          return getPackageName(cls.getName());
      }
  
      /**
       * <p>Gets the package name from a {@code String}.</p>
       * <p>
       * <p>The string passed in is assumed to be a class name - it is not checked.</p>
       * <p>If the class is unpackaged, return an empty string.</p>
       *
       * @param className the className to get the package name for, may be {@code null}
       * @return the package name or an empty string
       */
      public static String getPackageName(String className) {
          if (className == null || className.length() == 0) {
              return STRING_EMPTY;
          }
          // Strip array encoding
          while (className.charAt(0) == '[') {
              className = className.substring(1);
          }
          // Strip Object type encoding
          if (className.charAt(0) == 'L' && className.charAt(className.length() - 1) == ';') {
              className = className.substring(1);
          }
          int i = className.lastIndexOf(PACKAGE_SEPARATOR_CHAR);
          if (i == -1) {
              return STRING_EMPTY;
          }
          return className.substring(0, i);
      }
  
      // Superclasses/Superinterfaces
      // ----------------------------------------------------------------------
  
      /**
       * <p>Gets a {@code List} of superclasses for the given class.</p>
       *
       * @param cls the class to look up, may be {@code null}
       * @return the {@code List} of superclasses in order going up from this one
       * {@code null} if null input
       */
      public static List<Class<?>> getAllSuperclasses(Class<?> cls) {
          if (cls == null) {
              return null;
          }
          List<Class<?>> classes = new ArrayList<Class<?>>();
          Class<?> superclass = cls.getSuperclass();
          while (superclass != null) {
              classes.add(superclass);
              superclass = superclass.getSuperclass();
          }
          return classes;
      }
  
      /**
       * <p>Gets a {@code List} of all interfaces implemented by the given
       * class and its superclasses.</p>
       * <p>
       * <p>The order is determined by looking through each interface in turn as
       * declared in the source file and following its hierarchy up. Then each
       * superclass is considered in the same way. Later duplicates are ignored,
       * so the order is maintained.</p>
       *
       * @param cls the class to look up, may be {@code null}
       * @return the {@code List} of interfaces in order,
       * {@code null} if null input
       */
      public static List<Class<?>> getAllInterfaces(Class<?> cls) {
          if (cls == null) {
              return null;
          }
  
          LinkedHashSet<Class<?>> interfacesFound = new LinkedHashSet<Class<?>>();
          getAllInterfaces(cls, interfacesFound);
  
          return new ArrayList<Class<?>>(interfacesFound);
      }
  
      /**
       * Get the interfaces for the specified class.
       *
       * @param cls             the class to look up, may be {@code null}
       * @param interfacesFound the {@code Set} of interfaces for the class
       */
      private static void getAllInterfaces(Class<?> cls, HashSet<Class<?>> interfacesFound) {
          while (cls != null) {
              Class<?>[] interfaces = cls.getInterfaces();
  
              for (Class<?> i : interfaces) {
                  if (interfacesFound.add(i)) {
                      getAllInterfaces(i, interfacesFound);
                  }
              }
  
              cls = cls.getSuperclass();
          }
      }
  
      // Convert list
      // ----------------------------------------------------------------------
  
      /**
       * <p>Given a {@code List} of class names, this method converts them into classes.</p>
       * <p>
       * <p>A new {@code List} is returned. If the class name cannot be found, {@code null}
       * is stored in the {@code List}. If the class name in the {@code List} is
       * {@code null}, {@code null} is stored in the output {@code List}.</p>
       *
       * @param classNames the classNames to change
       * @return a {@code List} of Class objects corresponding to the class names,
       * {@code null} if null input
       * @throws ClassCastException if classNames contains a non String entry
       */
      public static List<Class<?>> convertClassNamesToClasses(List<String> classNames) {
          if (classNames == null) {
              return null;
          }
          List<Class<?>> classes = new ArrayList<Class<?>>(classNames.size());
          for (String className : classNames) {
              try {
                  classes.add(Class.forName(className));
              } catch (Exception ex) {
                  classes.add(null);
              }
          }
          return classes;
      }
  
      /**
       * <p>Given a {@code List} of {@code Class} objects, this method converts
       * them into class names.</p>
       * <p>
       * <p>A new {@code List} is returned. {@code null} objects will be copied into
       * the returned list as {@code null}.</p>
       *
       * @param classes the classes to change
       * @return a {@code List} of class names corresponding to the Class objects,
       * {@code null} if null input
       * @throws ClassCastException if {@code classes} contains a non-{@code Class} entry
       */
      public static List<String> convertClassesToClassNames(List<Class<?>> classes) {
          if (classes == null) {
              return null;
          }
          List<String> classNames = new ArrayList<String>(classes.size());
          for (Class<?> cls : classes) {
              if (cls == null) {
                  classNames.add(null);
              } else {
                  classNames.add(cls.getName());
              }
          }
          return classNames;
      }
  
      // Class loading
      // ----------------------------------------------------------------------
  
      /**
       * Returns the class represented by {@code className} using the
       * {@code classLoader}.  This implementation supports the syntaxes
       * "{@code java.util.Map.Entry[]}", "{@code java.util.Map$Entry[]}",
       * "{@code [Ljava.util.Map.Entry;}", and "{@code [Ljava.util.Map$Entry;}".
       *
       * @param classLoader the class loader to use to load the class
       * @param className   the class name
       * @param initialize  whether the class must be initialized
       * @return the class represented by {@code className} using the {@code classLoader}
       * @throws ClassNotFoundException if the class is not found
       */
      public static Class<?> getClass(
              ClassLoader classLoader, String className, boolean initialize) throws ClassNotFoundException {
          try {
              Class<?> clazz;
              if (abbreviationMap.containsKey(className)) {
                  String clsName = "[" + abbreviationMap.get(className);
                  clazz = Class.forName(clsName, initialize, classLoader).getComponentType();
              } else {
                  clazz = Class.forName(toCanonicalName(className), initialize, classLoader);
              }
              return clazz;
          } catch (ClassNotFoundException ex) {
              // allow path separators (.) as inner class name separators
              int lastDotIndex = className.lastIndexOf(PACKAGE_SEPARATOR_CHAR);
  
              if (lastDotIndex != -1) {
                  try {
                      return getClass(classLoader, className.substring(0, lastDotIndex) +
                                      INNER_CLASS_SEPARATOR_CHAR + className.substring(lastDotIndex + 1),
                              initialize);
                  } catch (ClassNotFoundException ex2) { // NOPMD
                      // ignore exception
                  }
              }
  
              throw ex;
          }
      }
  
      public static String getClassString(String classNamee) {
          return toCanonicalNames(classNamee);
      }
  
      /**
       * Returns the (initialized) class represented by {@code className}
       * using the {@code classLoader}.  This implementation supports
       * the syntaxes "{@code java.util.Map.Entry[]}",
       * "{@code java.util.Map$Entry[]}", "{@code [Ljava.util.Map.Entry;}",
       * and "{@code [Ljava.util.Map$Entry;}".
       *
       * @param classLoader the class loader to use to load the class
       * @param className   the class name
       * @return the class represented by {@code className} using the {@code classLoader}
       * @throws ClassNotFoundException if the class is not found
       */
      public static Class<?> getClass(ClassLoader classLoader, String className) throws ClassNotFoundException {
          return getClass(classLoader, className, true);
      }
  
      /**
       * Returns the (initialized) class represented by {@code className}
       * using the current thread's context class loader. This implementation
       * supports the syntaxes "{@code java.util.Map.Entry[]}",
       * "{@code java.util.Map$Entry[]}", "{@code [Ljava.util.Map.Entry;}",
       * and "{@code [Ljava.util.Map$Entry;}".
       *
       * @param className the class name
       * @return the class represented by {@code className} using the current thread's context class loader
       * @throws ClassNotFoundException if the class is not found
       */
      public static Class<?> getClass(String className) throws ClassNotFoundException {
          return getClass(className, true);
      }
  
      /**
       * Returns the class represented by {@code className} using the
       * current thread's context class loader. This implementation supports the
       * syntaxes "{@code java.util.Map.Entry[]}", "{@code java.util.Map$Entry[]}",
       * "{@code [Ljava.util.Map.Entry;}", and "{@code [Ljava.util.Map$Entry;}".
       *
       * @param className  the class name
       * @param initialize whether the class must be initialized
       * @return the class represented by {@code className} using the current thread's context class loader
       * @throws ClassNotFoundException if the class is not found
       */
      public static Class<?> getClass(String className, boolean initialize) throws ClassNotFoundException {
          ClassLoader contextCL = Thread.currentThread().getContextClassLoader();
          ClassLoader loader = contextCL == null ? ClassUtils.class.getClassLoader() : contextCL;
          return getClass(loader, className, initialize);
      }
  
      // ----------------------------------------------------------------------
  
      /**
       * Converts a class name to a JLS style class name.
       *
       * @param className the class name
       * @return the converted name
       */
      private static String toCanonicalName(String className) {
          className = deleteWhitespace(className);
          if (className == null) {
              throw new NullPointerException("className must not be null.");
          } else if (className.endsWith("[]")) {
              StringBuilder classNameBuffer = new StringBuilder();
              while (className.endsWith("[]")) {
                  className = className.substring(0, className.length() - 2);
                  classNameBuffer.append("[");
              }
              String abbreviation = abbreviationMap.get(className);
              if (abbreviation != null) {
                  classNameBuffer.append(abbreviation);
              } else {
                  classNameBuffer.append("L").append(className).append(";");
              }
              className = classNameBuffer.toString();
          }
          return className;
      }
  
      private static String toCanonicalNames(String className) {
          className = deleteWhitespace(className);
          StringBuilder classNameBuffer = new StringBuilder();
          if (className == null) {
              throw new NullPointerException("className must not be null.");
          } else if (className.endsWith("[]")) {
              while (className.endsWith("[]")) {
                  className = className.substring(0, className.length() - 2);
                  classNameBuffer.append("[");
              }
              String abbreviation = abbreviationMap.get(className);
              if (abbreviation != null) {
                  classNameBuffer.append(abbreviation);
              } else {
                  classNameBuffer.append("L").append(className).append(";");
              }
              return classNameBuffer.toString().replace(".", "/");
          } else {
              String abbreviation = abbreviationMap.get(className);
              if (abbreviation != null) {
                  classNameBuffer.append(abbreviation);
              } else {
                  if (className.startsWith("[")) {
                      classNameBuffer.append(className);
                  } else {
                      classNameBuffer.append("L").append(className).append(";");
                  }
              }
          }
          return classNameBuffer.toString().replace(".", "/");
      }
  
      /**
       * <p>Converts an array of {@code Object} in to an array of {@code Class} objects.
       * If any of these objects is null, a null element will be inserted into the array.</p>
       * <p>
       * <p>This method returns {@code null} for a {@code null} input array.</p>
       *
       * @param array an {@code Object} array
       * @return a {@code Class} array, {@code null} if null array input
       * @since 2.4
       */
      public static Class<?>[] toClass(Object... array) {
          if (array == null) {
              return null;
          } else if (array.length == 0) {
              return new Class[0];
          }
          Class<?>[] classes = new Class[array.length];
          for (int i = 0; i < array.length; i++) {
              classes[i] = array[i] == null ? null : array[i].getClass();
          }
          return classes;
      }
  
      // Delete
      //-----------------------------------------------------------------------
  
      /**
       * <p>Deletes all whitespaces from a String as defined by
       * {@link Character#isWhitespace(char)}.</p>
       * <p>
       * <pre>
       * StringUtils.deleteWhitespace(null)         = null
       * StringUtils.deleteWhitespace("")           = ""
       * StringUtils.deleteWhitespace("abc")        = "abc"
       * StringUtils.deleteWhitespace("   ab  c  ") = "abc"
       * </pre>
       *
       * @param str the String to delete whitespace from, may be null
       * @return the String without whitespaces, {@code null} if null String input
       */
      public static String deleteWhitespace(String str) {
          if (isEmpty(str)) {
              return str;
          }
          int sz = str.length();
          char[] chs = new char[sz];
          int count = 0;
          for (int i = 0; i < sz; i++) {
              if (!Character.isWhitespace(str.charAt(i))) {
                  chs[count++] = str.charAt(i);
              }
          }
          if (count == sz) {
              return str;
          }
          return new String(chs, 0, count);
      }
  
      // Empty checks
      //-----------------------------------------------------------------------
  
      /**
       * <p>Checks if a CharSequence is empty ("") or null.</p>
       * <p>
       * <pre>
       * StringUtils.isEmpty(null)      = true
       * StringUtils.isEmpty("")        = true
       * StringUtils.isEmpty(" ")       = false
       * StringUtils.isEmpty("bob")     = false
       * StringUtils.isEmpty("  bob  ") = false
       * </pre>
       * <p>
       * <p>NOTE: This method changed in Lang version 2.0.
       * It no longer trims the CharSequence.
       * That functionality is available in isBlank().</p>
       *
       * @param cs the CharSequence to check, may be null
       * @return {@code true} if the CharSequence is empty or null
       * @since 3.0 Changed signature from isEmpty(String) to isEmpty(CharSequence)
       */
      public static boolean isEmpty(CharSequence cs) {
          return cs == null || cs.length() == 0;
      }
  
  }
  