1 | /* |
2 | * @(#) $Id: BaseSession.java 165120 2005-04-28 09:03:57Z trustin $ |
3 | * |
4 | * Copyright 2004 The Apache Software Foundation |
5 | * |
6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
7 | * you may not use this file except in compliance with the License. |
8 | * You may obtain a copy of the License at |
9 | * |
10 | * http://www.apache.org/licenses/LICENSE-2.0 |
11 | * |
12 | * Unless required by applicable law or agreed to in writing, software |
13 | * distributed under the License is distributed on an "AS IS" BASIS, |
14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
15 | * See the License for the specific language governing permissions and |
16 | * limitations under the License. |
17 | * |
18 | */ |
19 | package org.apache.mina.common; |
20 | |
21 | import java.util.HashMap; |
22 | import java.util.Map; |
23 | import java.util.Set; |
24 | |
25 | import org.apache.mina.common.IdleStatus; |
26 | import org.apache.mina.common.Session; |
27 | |
28 | /** |
29 | * Base implementation of {@link Session}. |
30 | * |
31 | * @author Trustin Lee (trustin@apache.org) |
32 | * @version $Rev: 165120 $, $Date: 2005-04-28 18:03:57 +0900 $ |
33 | */ |
34 | public abstract class BaseSession implements Session |
35 | { |
36 | private final Map attributes = new HashMap(); |
37 | |
38 | private long readBytes; |
39 | |
40 | private long writtenBytes; |
41 | |
42 | private long lastReadTime; |
43 | |
44 | private long lastWriteTime; |
45 | |
46 | private boolean idleForBoth; |
47 | |
48 | private boolean idleForRead; |
49 | |
50 | private boolean idleForWrite; |
51 | |
52 | |
53 | protected BaseSession() |
54 | { |
55 | } |
56 | |
57 | public void close() |
58 | { |
59 | this.close( false ); |
60 | } |
61 | |
62 | public Object getAttachment() |
63 | { |
64 | return attributes.get( "" ); |
65 | } |
66 | |
67 | public Object setAttachment( Object attachment ) |
68 | { |
69 | synchronized( attributes ) |
70 | { |
71 | return attributes.put( "", attachment ); |
72 | } |
73 | } |
74 | |
75 | public Object getAttribute( String key ) |
76 | { |
77 | return attributes.get( key ); |
78 | } |
79 | |
80 | public Object setAttribute( String key, Object value ) |
81 | { |
82 | synchronized( attributes ) |
83 | { |
84 | return attributes.put( key, value ); |
85 | } |
86 | } |
87 | |
88 | public Object removeAttribute( String key ) |
89 | { |
90 | synchronized( attributes ) |
91 | { |
92 | return attributes.remove( key ); |
93 | } |
94 | } |
95 | |
96 | public Set getAttributeKeys() { |
97 | synchronized( attributes ) |
98 | { |
99 | return attributes.keySet(); |
100 | } |
101 | } |
102 | |
103 | public long getReadBytes() |
104 | { |
105 | return readBytes; |
106 | } |
107 | |
108 | public long getWrittenBytes() |
109 | { |
110 | return writtenBytes; |
111 | } |
112 | |
113 | public void increaseReadBytes( int increment ) |
114 | { |
115 | readBytes += increment; |
116 | lastReadTime = System.currentTimeMillis(); |
117 | } |
118 | |
119 | public void increaseWrittenBytes( int increment ) |
120 | { |
121 | writtenBytes += increment; |
122 | lastWriteTime = System.currentTimeMillis(); |
123 | } |
124 | |
125 | public long getLastIoTime() |
126 | { |
127 | return Math.max( lastReadTime, lastWriteTime ); |
128 | } |
129 | |
130 | public long getLastReadTime() |
131 | { |
132 | return lastReadTime; |
133 | } |
134 | |
135 | public long getLastWriteTime() |
136 | { |
137 | return lastWriteTime; |
138 | } |
139 | |
140 | public boolean isIdle( IdleStatus status ) |
141 | { |
142 | if( status == IdleStatus.BOTH_IDLE ) |
143 | return idleForBoth; |
144 | |
145 | if( status == IdleStatus.READER_IDLE ) |
146 | return idleForRead; |
147 | |
148 | if( status == IdleStatus.WRITER_IDLE ) |
149 | return idleForWrite; |
150 | |
151 | throw new IllegalArgumentException( "Unknown idle status: " + status ); |
152 | } |
153 | |
154 | public void setIdle( IdleStatus status, boolean value ) |
155 | { |
156 | if( status == IdleStatus.BOTH_IDLE ) |
157 | idleForBoth = value; |
158 | else if( status == IdleStatus.READER_IDLE ) |
159 | idleForRead = value; |
160 | else if( status == IdleStatus.WRITER_IDLE ) |
161 | idleForWrite = value; |
162 | else |
163 | throw new IllegalArgumentException( "Unknown idle status: " |
164 | + status ); |
165 | } |
166 | } |