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20 package org.apache.mina.transport.vmpipe;
21
22 import java.io.IOException;
23 import java.net.SocketAddress;
24 import java.util.HashMap;
25 import java.util.HashSet;
26 import java.util.List;
27 import java.util.Map;
28 import java.util.Set;
29 import java.util.concurrent.Executor;
30
31 import org.apache.mina.core.future.IoFuture;
32 import org.apache.mina.core.service.AbstractIoAcceptor;
33 import org.apache.mina.core.service.IoHandler;
34 import org.apache.mina.core.service.TransportMetadata;
35 import org.apache.mina.core.session.IdleStatusChecker;
36 import org.apache.mina.core.session.IoSession;
37
38
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41
42
43
44 public final class VmPipeAcceptor extends AbstractIoAcceptor {
45
46
47 private IdleStatusChecker idleChecker;
48
49 static final Map<VmPipeAddress, VmPipe> boundHandlers = new HashMap<VmPipeAddress, VmPipe>();
50
51
52
53
54 public VmPipeAcceptor() {
55 this(null);
56 }
57
58
59
60
61 public VmPipeAcceptor(Executor executor) {
62 super(new DefaultVmPipeSessionConfig(), executor);
63 idleChecker = new IdleStatusChecker();
64
65
66 executeWorker(idleChecker.getNotifyingTask(), "idleStatusChecker");
67 }
68
69 public TransportMetadata getTransportMetadata() {
70 return VmPipeSession.METADATA;
71 }
72
73 @Override
74 public VmPipeSessionConfig getSessionConfig() {
75 return (VmPipeSessionConfig) super.getSessionConfig();
76 }
77
78 @Override
79 public VmPipeAddress getLocalAddress() {
80 return (VmPipeAddress) super.getLocalAddress();
81 }
82
83 @Override
84 public VmPipeAddress getDefaultLocalAddress() {
85 return (VmPipeAddress) super.getDefaultLocalAddress();
86 }
87
88
89
90
91 public void setDefaultLocalAddress(VmPipeAddress localAddress) {
92 super.setDefaultLocalAddress(localAddress);
93 }
94
95 @Override
96 protected void dispose0() throws Exception {
97
98 idleChecker.getNotifyingTask().cancel();
99 unbind();
100 }
101
102 @Override
103 protected Set<SocketAddress> bindInternal(List<? extends SocketAddress> localAddresses) throws IOException {
104 Set<SocketAddress> newLocalAddresses = new HashSet<SocketAddress>();
105
106 synchronized (boundHandlers) {
107 for (SocketAddress a: localAddresses) {
108 VmPipeAddress localAddress = (VmPipeAddress) a;
109 if (localAddress == null || localAddress.getPort() == 0) {
110 localAddress = null;
111 for (int i = 10000; i < Integer.MAX_VALUE; i++) {
112 VmPipeAddress newLocalAddress = new VmPipeAddress(i);
113 if (!boundHandlers.containsKey(newLocalAddress) &&
114 !newLocalAddresses.contains(newLocalAddress)) {
115 localAddress = newLocalAddress;
116 break;
117 }
118 }
119
120 if (localAddress == null) {
121 throw new IOException("No port available.");
122 }
123 } else if (localAddress.getPort() < 0) {
124 throw new IOException("Bind port number must be 0 or above.");
125 } else if (boundHandlers.containsKey(localAddress)) {
126 throw new IOException("Address already bound: " + localAddress);
127 }
128
129 newLocalAddresses.add(localAddress);
130 }
131
132 for (SocketAddress a: newLocalAddresses) {
133 VmPipeAddress localAddress = (VmPipeAddress) a;
134 if (!boundHandlers.containsKey(localAddress)) {
135 boundHandlers.put(localAddress, new VmPipe(this, localAddress,
136 getHandler(), getListeners()));
137 } else {
138 for (SocketAddress a2: newLocalAddresses) {
139 boundHandlers.remove(a2);
140 }
141 throw new IOException("Duplicate local address: " + a);
142 }
143 }
144 }
145
146 return newLocalAddresses;
147 }
148
149 @Override
150 protected void unbind0(List<? extends SocketAddress> localAddresses) {
151 synchronized (boundHandlers) {
152 for (SocketAddress a: localAddresses) {
153 boundHandlers.remove(a);
154 }
155 }
156 }
157
158 public IoSession newSession(SocketAddress remoteAddress, SocketAddress localAddress) {
159 throw new UnsupportedOperationException();
160 }
161
162 void doFinishSessionInitialization(IoSession session, IoFuture future) {
163 initSession(session, future, null);
164 }
165 }