/
DefaultSelectorProvider.java
54 lines (48 loc) · 1.85 KB
/
DefaultSelectorProvider.java
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/*
* Copyright (c) 2015, 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.nio.ch;
import java.security.AccessController;
import java.security.PrivilegedAction;
/**
* Creates this platform's default SelectorProvider
*/
@SuppressWarnings("removal")
public class DefaultSelectorProvider {
private static final SelectorProviderImpl INSTANCE;
static {
PrivilegedAction<SelectorProviderImpl> pa = PollSelectorProvider::new;
INSTANCE = AccessController.doPrivileged(pa);
}
/**
* Prevent instantiation.
*/
private DefaultSelectorProvider() { }
/**
* Returns the default SelectorProvider implementation.
*/
public static SelectorProviderImpl get() {
return INSTANCE;
}
}