github.com/keysonZZZ/kmg@v0.0.0-20151121023212-05317bfd7d39/kmgRpc/kmgRpcJava/java/src/com/google/gson/internal/$Gson$Preconditions.java (about)

     1  /*
     2   * Copyright (C) 2008 Google Inc.
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   * http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  
    17  package com.google.gson.internal;
    18  
    19  /**
    20   * A simple utility class used to check method Preconditions.
    21   *
    22   * <pre>
    23   * public long divideBy(long value) {
    24   *   Preconditions.checkArgument(value != 0);
    25   *   return this.value / value;
    26   * }
    27   * </pre>
    28   *
    29   * @author Inderjeet Singh
    30   * @author Joel Leitch
    31   */
    32  public final class $Gson$Preconditions {
    33    public static <T> T checkNotNull(T obj) {
    34      if (obj == null) {
    35        throw new NullPointerException();
    36      }
    37      return obj;
    38    }
    39  
    40    public static void checkArgument(boolean condition) {
    41      if (!condition) {
    42        throw new IllegalArgumentException();
    43      }
    44    }
    45  }