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1   /*
2    * Copyright (C) 2016, 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 org.eclipse.jgit.lib.Constants;
47  
48  /**
49   * Statistics about {@link org.eclipse.jgit.transport.PackParser}.
50   *
51   * @since 4.6
52   */
53  public class ReceivedPackStatistics {
54  	private long numBytesRead;
55  
56  	private long numWholeCommit;
57  	private long numWholeTree;
58  	private long numWholeBlob;
59  	private long numWholeTag;
60  	private long numOfsDelta;
61  	private long numRefDelta;
62  
63  	private long numDeltaCommit;
64  	private long numDeltaTree;
65  	private long numDeltaBlob;
66  	private long numDeltaTag;
67  
68  	/**
69  	 * Get number of bytes read from the input stream
70  	 *
71  	 * @return number of bytes read from the input stream
72  	 */
73  	public long getNumBytesRead() {
74  		return numBytesRead;
75  	}
76  
77  	/**
78  	 * Get number of whole commit objects in the pack
79  	 *
80  	 * @return number of whole commit objects in the pack
81  	 */
82  	public long getNumWholeCommit() {
83  		return numWholeCommit;
84  	}
85  
86  	/**
87  	 * Get number of whole tree objects in the pack
88  	 *
89  	 * @return number of whole tree objects in the pack
90  	 */
91  	public long getNumWholeTree() {
92  		return numWholeTree;
93  	}
94  
95  	/**
96  	 * Get number of whole blob objects in the pack
97  	 *
98  	 * @return number of whole blob objects in the pack
99  	 */
100 	public long getNumWholeBlob() {
101 		return numWholeBlob;
102 	}
103 
104 	/**
105 	 * Get number of whole tag objects in the pack
106 	 *
107 	 * @return number of whole tag objects in the pack
108 	 */
109 	public long getNumWholeTag() {
110 		return numWholeTag;
111 	}
112 
113 	/**
114 	 * Get number of offset delta objects in the pack
115 	 *
116 	 * @return number of offset delta objects in the pack
117 	 */
118 	public long getNumOfsDelta() {
119 		return numOfsDelta;
120 	}
121 
122 	/**
123 	 * Get number of ref delta objects in the pack
124 	 *
125 	 * @return number of ref delta objects in the pack
126 	 */
127 	public long getNumRefDelta() {
128 		return numRefDelta;
129 	}
130 
131 	/**
132 	 * Get number of delta commit objects in the pack
133 	 *
134 	 * @return number of delta commit objects in the pack
135 	 */
136 	public long getNumDeltaCommit() {
137 		return numDeltaCommit;
138 	}
139 
140 	/**
141 	 * Get number of delta tree objects in the pack
142 	 *
143 	 * @return number of delta tree objects in the pack
144 	 */
145 	public long getNumDeltaTree() {
146 		return numDeltaTree;
147 	}
148 
149 	/**
150 	 * Get number of delta blob objects in the pack
151 	 *
152 	 * @return number of delta blob objects in the pack
153 	 */
154 	public long getNumDeltaBlob() {
155 		return numDeltaBlob;
156 	}
157 
158 	/**
159 	 * Get number of delta tag objects in the pack
160 	 *
161 	 * @return number of delta tag objects in the pack
162 	 */
163 	public long getNumDeltaTag() {
164 		return numDeltaTag;
165 	}
166 
167 	/** A builder for {@link ReceivedPackStatistics}. */
168 	public static class Builder {
169 		private long numBytesRead;
170 
171 		private long numWholeCommit;
172 		private long numWholeTree;
173 		private long numWholeBlob;
174 		private long numWholeTag;
175 		private long numOfsDelta;
176 		private long numRefDelta;
177 
178 		private long numDeltaCommit;
179 		private long numDeltaTree;
180 		private long numDeltaBlob;
181 		private long numDeltaTag;
182 
183 		/**
184 		 * @param numBytesRead number of bytes read from the input stream
185 		 * @return this
186 		 */
187 		public Builder setNumBytesRead(long numBytesRead) {
188 			this.numBytesRead = numBytesRead;
189 			return this;
190 		}
191 
192 		/**
193 		 * Increment a whole object count.
194 		 *
195 		 * @param type OBJ_COMMIT, OBJ_TREE, OBJ_BLOB, or OBJ_TAG
196 		 * @return this
197 		 */
198 		public Builder addWholeObject(int type) {
199 			switch (type) {
200 				case Constants.OBJ_COMMIT:
201 					numWholeCommit++;
202 					break;
203 				case Constants.OBJ_TREE:
204 					numWholeTree++;
205 					break;
206 				case Constants.OBJ_BLOB:
207 					numWholeBlob++;
208 					break;
209 				case Constants.OBJ_TAG:
210 					numWholeTag++;
211 					break;
212 				default:
213 					throw new IllegalArgumentException(
214 							type + " cannot be a whole object"); //$NON-NLS-1$
215 			}
216 			return this;
217 		}
218 
219 		/** @return this */
220 		public Builder addOffsetDelta() {
221 			numOfsDelta++;
222 			return this;
223 		}
224 
225 		/** @return this */
226 		public Builder addRefDelta() {
227 			numRefDelta++;
228 			return this;
229 		}
230 
231 		/**
232 		 * Increment a delta object count.
233 		 *
234 		 * @param type OBJ_COMMIT, OBJ_TREE, OBJ_BLOB, or OBJ_TAG
235 		 * @return this
236 		 */
237 		public Builder addDeltaObject(int type) {
238 			switch (type) {
239 				case Constants.OBJ_COMMIT:
240 					numDeltaCommit++;
241 					break;
242 				case Constants.OBJ_TREE:
243 					numDeltaTree++;
244 					break;
245 				case Constants.OBJ_BLOB:
246 					numDeltaBlob++;
247 					break;
248 				case Constants.OBJ_TAG:
249 					numDeltaTag++;
250 					break;
251 				default:
252 					throw new IllegalArgumentException(
253 							"delta should be a delta to a whole object. " + //$NON-NLS-1$
254 							type + " cannot be a whole object"); //$NON-NLS-1$
255 			}
256 			return this;
257 		}
258 
259 		ReceivedPackStatistics build() {
260 			ReceivedPackStatistics s = new ReceivedPackStatistics();
261 			s.numBytesRead = numBytesRead;
262 			s.numWholeCommit = numWholeCommit;
263 			s.numWholeTree = numWholeTree;
264 			s.numWholeBlob = numWholeBlob;
265 			s.numWholeTag = numWholeTag;
266 			s.numOfsDelta = numOfsDelta;
267 			s.numRefDelta = numRefDelta;
268 			s.numDeltaCommit = numDeltaCommit;
269 			s.numDeltaTree = numDeltaTree;
270 			s.numDeltaBlob = numDeltaBlob;
271 			s.numDeltaTag = numDeltaTag;
272 			return s;
273 		}
274 	}
275 }