/*
    * ====================================================================
    * 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.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  
  package org.apache.http.util;
  
  import java.util.Collection;
  
  public class Args {
  
      public static void check(final boolean expression, final String message) {
          if (!expression) {
              throw new IllegalArgumentException(message);
          }
      }
  
      public static void check(final boolean expression, final String message, final Object... args) {
          if (!expression) {
              throw new IllegalArgumentException(String.format(message, args));
          }
      }
  
      public static void check(final boolean expression, final String message, final Object arg) {
          if (!expression) {
              throw new IllegalArgumentException(String.format(message, arg));
          }
      }
  
      public static <T> T notNull(final T argument, final String name) {
          if (argument == null) {
              throw new IllegalArgumentException(name + " may not be null");
          }
          return argument;
      }
  
      public static <T extends CharSequence> T notEmpty(final T argument, final String name) {
          if (argument == null) {
              throw new IllegalArgumentException(name + " may not be null");
          }
          if (TextUtils.isEmpty(argument)) {
              throw new IllegalArgumentException(name + " may not be empty");
          }
          return argument;
      }
  
      public static <T extends CharSequence> T notBlank(final T argument, final String name) {
          if (argument == null) {
              throw new IllegalArgumentException(name + " may not be null");
          }
          if (TextUtils.isBlank(argument)) {
              throw new IllegalArgumentException(name + " may not be blank");
          }
          return argument;
      }
  
      public static <T extends CharSequence> T containsNoBlanks(final T argument, final String name) {
          if (argument == null) {
              throw new IllegalArgumentException(name + " may not be null");
          }
          if (argument.length() == 0) {
              throw new IllegalArgumentException(name + " may not be empty");
          }
          if (TextUtils.containsBlanks(argument)) {
              throw new IllegalArgumentException(name + " may not contain blanks");
          }
          return argument;
      }
  
      public static <E, T extends Collection<E>> T notEmpty(final T argument, final String name) {
          if (argument == null) {
              throw new IllegalArgumentException(name + " may not be null");
          }
          if (argument.isEmpty()) {
              throw new IllegalArgumentException(name + " may not be empty");
          }
          return argument;
     }
 
     public static int positive(final int n, final String name) {
         if (n <= 0) {
             throw new IllegalArgumentException(name + " may not be negative or zero");
         }
         return n;
     }
 
     public static long positive(final long n, final String name) {
         if (n <= 0) {
             throw new IllegalArgumentException(name + " may not be negative or zero");
         }
         return n;
     }
 
     public static int notNegative(final int n, final String name) {
         if (n < 0) {
             throw new IllegalArgumentException(name + " may not be negative");
         }
         return n;
     }
 
     public static long notNegative(final long n, final String name) {
         if (n < 0) {
             throw new IllegalArgumentException(name + " may not be negative");
         }
         return n;
     }
 
 }