components/cronet/android/java/src/org/chromium/net/impl/Preconditions.java

// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

package org.chromium.net.impl;

import java.nio.ByteBuffer;

/**
 * Utility class to check preconditions.
 */
public final class Preconditions {
    private Preconditions() {}

    public static void checkDirect(ByteBuffer buffer) {
        if (!buffer.isDirect()) {
            throw new IllegalArgumentException("byteBuffer must be a direct ByteBuffer.");
        }
    }

    public static void checkHasRemaining(ByteBuffer buffer) {
        if (!buffer.hasRemaining()) {
            throw new IllegalArgumentException("ByteBuffer is already full.");
        }
    }
}