Utils.java

/*
    Android Asynchronous Http Client
    Copyright (c) 2011 James Smith <james@loopj.com>
    http://loopj.com

    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.loopj.android.http;

/**
 * Provides general assert utils, which are stripped by Android SDK on
 * compile/runtime, to work on release builds
 */
class Utils {

    private Utils() {
    }

    /**
     * Will throw AssertionError, if expression is not true
     *
     * @param expression    result of your asserted condition
     * @param failedMessage message to be included in error log
     * @throws java.lang.AssertionError
     */
    public static void asserts(final boolean expression, final String failedMessage) {
        if (!expression) {
            throw new AssertionError(failedMessage);
        }
    }

    /**
     * Will throw IllegalArgumentException if provided object is null on runtime
     *
     * @param argument object that should be asserted as not null
     * @param name     name of the object asserted
     * @throws java.lang.IllegalArgumentException
     */
    public static <T> T notNull(final T argument, final String name) {
        if (argument == null) {
            throw new IllegalArgumentException(name + " should not be null!");
        }
        return argument;
    }
}