01: /*
02: * $HeadURL: https://svn.apache.org/repos/asf/httpcomponents/httpcore/tags/4.0-beta1/module-main/src/main/java/org/apache/http/HttpConnectionMetrics.java $
03: * $Revision: 548035 $
04: * $Date: 2007-06-17 14:17:03 +0200 (Sun, 17 Jun 2007) $
05: *
06: * ====================================================================
07: * Licensed to the Apache Software Foundation (ASF) under one
08: * or more contributor license agreements. See the NOTICE file
09: * distributed with this work for additional information
10: * regarding copyright ownership. The ASF licenses this file
11: * to you under the Apache License, Version 2.0 (the
12: * "License"); you may not use this file except in compliance
13: * with the License. You may obtain a copy of the License at
14: *
15: * http://www.apache.org/licenses/LICENSE-2.0
16: *
17: * Unless required by applicable law or agreed to in writing,
18: * software distributed under the License is distributed on an
19: * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
20: * KIND, either express or implied. See the License for the
21: * specific language governing permissions and limitations
22: * under the License.
23: * ====================================================================
24: *
25: * This software consists of voluntary contributions made by many
26: * individuals on behalf of the Apache Software Foundation. For more
27: * information on the Apache Software Foundation, please see
28: * <http://www.apache.org/>.
29: *
30: */
31:
32: package org.apache.http;
33:
34: /**
35: * The point of access to the statistics of an {@link HttpConnection}.
36: */
37: public interface HttpConnectionMetrics {
38:
39: /**
40: * Returns the number of requests transferred over the connection,
41: * 0 if not available.
42: */
43: long getRequestCount();
44:
45: /**
46: * Returns the number of responses transferred over the connection,
47: * 0 if not available.
48: */
49: long getResponseCount();
50:
51: /**
52: * Returns the number of bytes transferred over the connection,
53: * 0 if not available.
54: */
55: long getSentBytesCount();
56:
57: /**
58: * Returns the number of bytes transferred over the connection,
59: * 0 if not available.
60: */
61: long getReceivedBytesCount();
62:
63: /**
64: * Return the value for the specified metric.
65: *
66: *@param metricName the name of the metric to query.
67: *
68: *@return the object representing the metric requested,
69: * <code>null</code> if the metric cannot not found.
70: */
71: Object getMetric(String metricName);
72:
73: /**
74: * Resets the counts
75: *
76: */
77: void reset();
78:
79: }
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