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1   /*
2    * Copyright (C) 2011, Google Inc.
3    * and other copyright owners as documented in the project's IP log.
4    *
5    * This program and the accompanying materials are made available
6    * under the terms of the Eclipse Distribution License v1.0 which
7    * accompanies this distribution, is reproduced below, and is
8    * available at http://www.eclipse.org/org/documents/edl-v10.php
9    *
10   * All rights reserved.
11   *
12   * Redistribution and use in source and binary forms, with or
13   * without modification, are permitted provided that the following
14   * conditions are met:
15   *
16   * - Redistributions of source code must retain the above copyright
17   *   notice, this list of conditions and the following disclaimer.
18   *
19   * - Redistributions in binary form must reproduce the above
20   *   copyright notice, this list of conditions and the following
21   *   disclaimer in the documentation and/or other materials provided
22   *   with the distribution.
23   *
24   * - Neither the name of the Eclipse Foundation, Inc. nor the
25   *   names of its contributors may be used to endorse or promote
26   *   products derived from this software without specific prior
27   *   written permission.
28   *
29   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30   * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
38   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42   */
43  
44  package org.eclipse.jgit.transport;
45  
46  import java.util.List;
47  
48  import org.eclipse.jgit.internal.storage.pack.PackWriter;
49  
50  /**
51   * UploadPackLogger that delegates to a list of other loggers.
52   * <p>
53   * loggers are run in the order passed to the constructor.
54   *
55   * @deprecated Use {@link PostUploadHookChain} instead.
56   */
57  @Deprecated
58  public class UploadPackLoggerChain implements UploadPackLogger {
59  	private final UploadPackLogger[] loggers;
60  	private final int count;
61  
62  	/**
63  	 * Create a new logger chaining the given loggers together.
64  	 *
65  	 * @param loggers
66  	 *            loggers to execute, in order.
67  	 * @return a new logger chain of the given loggers.
68  	 */
69  	public static UploadPackLogger newChain(
70  			List<? extends UploadPackLogger> loggers) {
71  		UploadPackLogger[] newLoggers = new UploadPackLogger[loggers.size()];
72  		int i = 0;
73  		for (UploadPackLogger logger : loggers)
74  			if (logger != UploadPackLogger.NULL)
75  				newLoggers[i++] = logger;
76  		if (i == 0)
77  			return UploadPackLogger.NULL;
78  		else if (i == 1)
79  			return newLoggers[0];
80  		else
81  			return new UploadPackLoggerChain(newLoggers, i);
82  	}
83  
84  	/**
85  	 * @since 3.0
86  	 */
87  	@Override
88  	public void onPackStatistics(PackWriter.Statistics stats) {
89  		for (int i = 0; i < count; i++)
90  			loggers[i].onPackStatistics(stats);
91  	}
92  
93  	private UploadPackLoggerChain(UploadPackLogger[] loggers, int count) {
94  		this.loggers = loggers;
95  		this.count = count;
96  	}
97  }