1 /*
   2  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 
  27 package sun.util.logger;
  28 
  29 import java.util.Objects;
  30 import java.lang.System.Logger;
  31 import sun.util.logging.PlatformLoggerBridge;
  32 
  33 /**
  34  * An implementation of {@link Logger} that redirects all calls to a wrapped
  35  instance of Logger.
  36  *
  37  * @param <L> Type of the wrapped Logger: {@code Logger} or an
  38  *            extension of that interface.
  39  * @since 1.9
  40  */
  41 public class LoggerWrapper<L extends Logger> extends AbstractLoggerWrapper<L>
  42     implements Logger, PlatformLoggerBridge {
  43 
  44     final L wrapped;
  45     final PlatformLoggerBridge platformProxy;
  46 
  47     public LoggerWrapper(L wrapped) {
  48         this(Objects.requireNonNull(wrapped), (Void)null);
  49     }
  50 
  51     LoggerWrapper(L wrapped, Void unused) {
  52         this.wrapped = wrapped;
  53         this.platformProxy = (wrapped instanceof PlatformLoggerBridge) ?
  54             (PlatformLoggerBridge) wrapped : null;
  55     }
  56 
  57     @Override
  58     public final L wrapped() {
  59         return wrapped;
  60     }
  61 
  62     @Override
  63     public final PlatformLoggerBridge platformProxy() {
  64         return platformProxy;
  65     }
  66 
  67 }