diff options
author | Mike Lockwood <lockwood@google.com> | 2012-03-21 12:26:23 -0700 |
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committer | Mike Lockwood <lockwood@google.com> | 2012-03-21 12:26:23 -0700 |
commit | f4eb7466d5c09098f9dc54137ed3235e3c43fc9f (patch) | |
tree | 56e1bf5e433e60e3a18d5a9d08b7d55a64d8ae1d /src/javax/jmdns/impl/JmmDNSImpl.java | |
parent | 19376825c9e562c188aef9ccd09a7220bd3c0a20 (diff) | |
parent | 76f0067cea0428b683cba2f187d81e723658f964 (diff) | |
download | jmdns-1ce7c1be470e6df0fb97bd3161b2c64131331934.tar.gz |
Merge remote-tracking branch 'goog/ics-aah-exp'android-wear-n-preview-3android-wear-n-preview-2android-wear-n-preview-1android-wear-7.1.1_r1android-wear-5.1.1_r1android-wear-5.1.0_r1android-wear-5.0.0_r1android-sdk-support_r11android-sdk-4.4.2_r1.0.1android-sdk-4.4.2_r1android-n-preview-5android-n-preview-4android-n-preview-3android-n-preview-2android-n-preview-1android-n-iot-preview-2android-m-preview-2android-m-preview-1android-m-previewandroid-l-preview_r2android-cts-6.0_r9android-cts-6.0_r8android-cts-6.0_r7android-cts-6.0_r6android-cts-6.0_r5android-cts-6.0_r4android-cts-6.0_r32android-cts-6.0_r31android-cts-6.0_r30android-cts-6.0_r3android-cts-6.0_r29android-cts-6.0_r28android-cts-6.0_r27android-cts-6.0_r26android-cts-6.0_r25android-cts-6.0_r24android-cts-6.0_r23android-cts-6.0_r22android-cts-6.0_r21android-cts-6.0_r20android-cts-6.0_r2android-cts-6.0_r19android-cts-6.0_r18android-cts-6.0_r17android-cts-6.0_r16android-cts-6.0_r15android-cts-6.0_r14android-cts-6.0_r13android-cts-6.0_r12android-cts-6.0_r1android-cts-5.1_r9android-cts-5.1_r8android-cts-5.1_r7android-cts-5.1_r6android-cts-5.1_r5android-cts-5.1_r4android-cts-5.1_r3android-cts-5.1_r28android-cts-5.1_r27android-cts-5.1_r26android-cts-5.1_r25android-cts-5.1_r24android-cts-5.1_r23android-cts-5.1_r22android-cts-5.1_r21android-cts-5.1_r20android-cts-5.1_r2android-cts-5.1_r19android-cts-5.1_r18android-cts-5.1_r17android-cts-5.1_r16android-cts-5.1_r15android-cts-5.1_r14android-cts-5.1_r13android-cts-5.1_r10android-cts-5.1_r1android-cts-5.0_r9android-cts-5.0_r8android-cts-5.0_r7android-cts-5.0_r6android-cts-5.0_r5android-cts-5.0_r4android-cts-5.0_r3android-cts-4.4_r4android-cts-4.4_r1android-cts-4.2_r2android-cts-4.2_r1android-cts-4.1_r4android-cts-4.1_r2android-cts-4.1_r1android-6.0.1_r9android-6.0.1_r81android-6.0.1_r80android-6.0.1_r8android-6.0.1_r79android-6.0.1_r78android-6.0.1_r77android-6.0.1_r74android-6.0.1_r73android-6.0.1_r72android-6.0.1_r70android-6.0.1_r7android-6.0.1_r69android-6.0.1_r68android-6.0.1_r67android-6.0.1_r66android-6.0.1_r65android-6.0.1_r63android-6.0.1_r62android-6.0.1_r61android-6.0.1_r60android-6.0.1_r59android-6.0.1_r58android-6.0.1_r57android-6.0.1_r56android-6.0.1_r55android-6.0.1_r54android-6.0.1_r53android-6.0.1_r52android-6.0.1_r51android-6.0.1_r50android-6.0.1_r5android-6.0.1_r49android-6.0.1_r48android-6.0.1_r47android-6.0.1_r46android-6.0.1_r45android-6.0.1_r43android-6.0.1_r42android-6.0.1_r41android-6.0.1_r40android-6.0.1_r4android-6.0.1_r33android-6.0.1_r32android-6.0.1_r31android-6.0.1_r30android-6.0.1_r3android-6.0.1_r28android-6.0.1_r27android-6.0.1_r26android-6.0.1_r25android-6.0.1_r24android-6.0.1_r22android-6.0.1_r21android-6.0.1_r20android-6.0.1_r18android-6.0.1_r17android-6.0.1_r16android-6.0.1_r13android-6.0.1_r12android-6.0.1_r11android-6.0.1_r10android-6.0.1_r1android-6.0.0_r7android-6.0.0_r6android-6.0.0_r5android-6.0.0_r41android-6.0.0_r4android-6.0.0_r3android-6.0.0_r26android-6.0.0_r25android-6.0.0_r24android-6.0.0_r23android-6.0.0_r2android-6.0.0_r13android-6.0.0_r12android-6.0.0_r11android-6.0.0_r1android-5.1.1_r9android-5.1.1_r8android-5.1.1_r7android-5.1.1_r6android-5.1.1_r5android-5.1.1_r4android-5.1.1_r38android-5.1.1_r37android-5.1.1_r36android-5.1.1_r35android-5.1.1_r34android-5.1.1_r33android-5.1.1_r30android-5.1.1_r3android-5.1.1_r29android-5.1.1_r28android-5.1.1_r26android-5.1.1_r25android-5.1.1_r24android-5.1.1_r23android-5.1.1_r22android-5.1.1_r20android-5.1.1_r2android-5.1.1_r19android-5.1.1_r18android-5.1.1_r17android-5.1.1_r16android-5.1.1_r15android-5.1.1_r14android-5.1.1_r13android-5.1.1_r12android-5.1.1_r10android-5.1.1_r1android-5.1.0_r5android-5.1.0_r4android-5.1.0_r3android-5.1.0_r1android-5.0.2_r3android-5.0.2_r1android-5.0.1_r1android-5.0.0_r7android-5.0.0_r6android-5.0.0_r5.1android-5.0.0_r5android-5.0.0_r4android-5.0.0_r3android-5.0.0_r2android-5.0.0_r1android-4.4w_r1android-4.4_r1.2.0.1android-4.4_r1.2android-4.4_r1.1.0.1android-4.4_r1.1android-4.4_r1.0.1android-4.4_r1android-4.4_r0.9android-4.4_r0.8android-4.4_r0.7android-4.4.4_r2.0.1android-4.4.4_r2android-4.4.4_r1.0.1android-4.4.4_r1android-4.4.3_r1.1.0.1android-4.4.3_r1.1android-4.4.3_r1.0.1android-4.4.3_r1android-4.4.2_r2.0.1android-4.4.2_r2android-4.4.2_r1.0.1android-4.4.2_r1android-4.4.1_r1.0.1android-4.4.1_r1android-4.3_r3.1android-4.3_r3android-4.3_r2.3android-4.3_r2.2android-4.3_r2.1android-4.3_r2android-4.3_r1.1android-4.3_r1android-4.3_r0.9.1android-4.3_r0.9android-4.3.1_r1android-4.2_r1android-4.2.2_r1.2android-4.2.2_r1.1android-4.2.2_r1android-4.2.1_r1.2android-4.2.1_r1.1android-4.2.1_r1android-4.1.2_r2.1android-4.1.2_r2android-4.1.2_r1android-4.1.1_r6.1android-4.1.1_r6android-4.1.1_r5android-4.1.1_r4android-4.1.1_r3android-4.1.1_r2android-4.1.1_r1.1android-4.1.1_r1tools_r22.2tools_r22tools_r21nougat-mr1-wear-releasen-iot-preview-2master-soongmarshmallow-releasemarshmallow-mr3-releasemarshmallow-mr2-releasemarshmallow-mr1-releasemarshmallow-mr1-devmarshmallow-dr1.6-releasemarshmallow-dr1.5-releasemarshmallow-dr1.5-devmarshmallow-dr-releasemarshmallow-dr-dragon-releasemarshmallow-dr-devmarshmallow-devmarshmallow-cts-releaselollipop-wear-releaselollipop-releaselollipop-mr1-wfc-releaselollipop-mr1-releaselollipop-mr1-fi-releaselollipop-mr1-devlollipop-mr1-cts-releaselollipop-devlollipop-cts-releasel-previewkitkat-wearkitkat-releasekitkat-mr2.2-releasekitkat-mr2.1-releasekitkat-mr2-releasekitkat-mr1.1-releasekitkat-mr1-releasekitkat-devkitkat-cts-releasekitkat-cts-devjb-releasejb-mr2.0.0-releasejb-mr2.0-releasejb-mr2-releasejb-mr2-devjb-mr1.1-releasejb-mr1.1-dev-plus-aospjb-mr1.1-devjb-mr1-releasejb-mr1-dev-plus-aospjb-mr1-devjb-mr0-releasejb-devidea133-weekly-releaseidea133
Diffstat (limited to 'src/javax/jmdns/impl/JmmDNSImpl.java')
-rw-r--r-- | src/javax/jmdns/impl/JmmDNSImpl.java | 599 |
1 files changed, 599 insertions, 0 deletions
diff --git a/src/javax/jmdns/impl/JmmDNSImpl.java b/src/javax/jmdns/impl/JmmDNSImpl.java new file mode 100644 index 0000000..3eb78f1 --- /dev/null +++ b/src/javax/jmdns/impl/JmmDNSImpl.java @@ -0,0 +1,599 @@ +/** + * + */ +package javax.jmdns.impl; + +import java.io.IOException; +import java.net.InetAddress; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Collections; +import java.util.HashMap; +import java.util.HashSet; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.Timer; +import java.util.TimerTask; +import java.util.concurrent.ConcurrentHashMap; +import java.util.concurrent.ConcurrentMap; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Executors; +import java.util.concurrent.TimeUnit; +import java.util.logging.Level; +import java.util.logging.Logger; + +import javax.jmdns.JmDNS; +import javax.jmdns.JmmDNS; +import javax.jmdns.NetworkTopologyDiscovery; +import javax.jmdns.NetworkTopologyEvent; +import javax.jmdns.NetworkTopologyListener; +import javax.jmdns.ServiceInfo; +import javax.jmdns.ServiceListener; +import javax.jmdns.ServiceTypeListener; +import javax.jmdns.impl.constants.DNSConstants; + +/** + * This class enable multihomming mDNS. It will open a mDNS per IP address of the machine. + * + * @author Cédrik Lime, Pierre Frisch + */ +public class JmmDNSImpl implements JmmDNS, NetworkTopologyListener, ServiceInfoImpl.Delegate { + private static Logger logger = Logger.getLogger(JmmDNSImpl.class.getName()); + + private final Set<NetworkTopologyListener> _networkListeners; + + /** + * Every JmDNS created. + */ + private final ConcurrentMap<InetAddress, JmDNS> _knownMDNS; + + /** + * This enable the service info text update. + */ + private final ConcurrentMap<String, ServiceInfo> _services; + + private final ExecutorService _ListenerExecutor; + + private final ExecutorService _jmDNSExecutor; + + private final Timer _timer; + + /** + * + */ + public JmmDNSImpl() { + super(); + _networkListeners = Collections.synchronizedSet(new HashSet<NetworkTopologyListener>()); + _knownMDNS = new ConcurrentHashMap<InetAddress, JmDNS>(); + _services = new ConcurrentHashMap<String, ServiceInfo>(20); + _ListenerExecutor = Executors.newSingleThreadExecutor(); + _jmDNSExecutor = Executors.newCachedThreadPool(); + _timer = new Timer("Multihommed mDNS.Timer", true); + (new NetworkChecker(this, NetworkTopologyDiscovery.Factory.getInstance())).start(_timer); + } + + /* + * (non-Javadoc) + * @see java.io.Closeable#close() + */ + @Override + public void close() throws IOException { + if (logger.isLoggable(Level.FINER)) { + logger.finer("Cancelling JmmDNS: " + this); + } + _timer.cancel(); + _ListenerExecutor.shutdown(); + // We need to cancel all the DNS + ExecutorService executor = Executors.newCachedThreadPool(); + for (final JmDNS mDNS : _knownMDNS.values()) { + executor.submit(new Runnable() { + /** + * {@inheritDoc} + */ + @Override + public void run() { + try { + mDNS.close(); + } catch (IOException exception) { + // JmDNS never throws this is only because of the closeable interface + } + } + }); + } + executor.shutdown(); + try { + executor.awaitTermination(DNSConstants.CLOSE_TIMEOUT, TimeUnit.MILLISECONDS); + } catch (InterruptedException exception) { + logger.log(Level.WARNING, "Exception ", exception); + } + _knownMDNS.clear(); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#getNames() + */ + @Override + public String[] getNames() { + Set<String> result = new HashSet<String>(); + for (JmDNS mDNS : _knownMDNS.values()) { + result.add(mDNS.getName()); + } + return result.toArray(new String[result.size()]); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#getHostNames() + */ + @Override + public String[] getHostNames() { + Set<String> result = new HashSet<String>(); + for (JmDNS mDNS : _knownMDNS.values()) { + result.add(mDNS.getHostName()); + } + return result.toArray(new String[result.size()]); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#getInetAddresses() + */ + @Override + public InetAddress[] getInetAddresses() throws IOException { + Set<InetAddress> result = new HashSet<InetAddress>(); + for (JmDNS mDNS : _knownMDNS.values()) { + result.add(mDNS.getInetAddress()); + } + return result.toArray(new InetAddress[result.size()]); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#getInterfaces() + */ + @Override + @Deprecated + public InetAddress[] getInterfaces() throws IOException { + Set<InetAddress> result = new HashSet<InetAddress>(); + for (JmDNS mDNS : _knownMDNS.values()) { + result.add(mDNS.getInterface()); + } + return result.toArray(new InetAddress[result.size()]); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#getServiceInfos(java.lang.String, java.lang.String) + */ + @Override + public ServiceInfo[] getServiceInfos(String type, String name) { + return this.getServiceInfos(type, name, false, DNSConstants.SERVICE_INFO_TIMEOUT); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#getServiceInfos(java.lang.String, java.lang.String, long) + */ + @Override + public ServiceInfo[] getServiceInfos(String type, String name, long timeout) { + return this.getServiceInfos(type, name, false, timeout); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#getServiceInfos(java.lang.String, java.lang.String, boolean) + */ + @Override + public ServiceInfo[] getServiceInfos(String type, String name, boolean persistent) { + return this.getServiceInfos(type, name, persistent, DNSConstants.SERVICE_INFO_TIMEOUT); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#getServiceInfos(java.lang.String, java.lang.String, boolean, long) + */ + @Override + public ServiceInfo[] getServiceInfos(final String type, final String name, final boolean persistent, final long timeout) { + // We need to run this in parallel to respect the timeout. + final Set<ServiceInfo> result = Collections.synchronizedSet(new HashSet<ServiceInfo>(_knownMDNS.size())); + ExecutorService executor = Executors.newCachedThreadPool(); + for (final JmDNS mDNS : _knownMDNS.values()) { + executor.submit(new Runnable() { + /** + * {@inheritDoc} + */ + @Override + public void run() { + result.add(mDNS.getServiceInfo(type, name, persistent, timeout)); + } + }); + } + executor.shutdown(); + try { + executor.awaitTermination(timeout, TimeUnit.MILLISECONDS); + } catch (InterruptedException exception) { + logger.log(Level.WARNING, "Exception ", exception); + } + return result.toArray(new ServiceInfo[result.size()]); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#requestServiceInfo(java.lang.String, java.lang.String) + */ + @Override + public void requestServiceInfo(String type, String name) { + this.requestServiceInfo(type, name, false, DNSConstants.SERVICE_INFO_TIMEOUT); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#requestServiceInfo(java.lang.String, java.lang.String, boolean) + */ + @Override + public void requestServiceInfo(String type, String name, boolean persistent) { + this.requestServiceInfo(type, name, persistent, DNSConstants.SERVICE_INFO_TIMEOUT); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#requestServiceInfo(java.lang.String, java.lang.String, long) + */ + @Override + public void requestServiceInfo(String type, String name, long timeout) { + this.requestServiceInfo(type, name, false, timeout); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#requestServiceInfo(java.lang.String, java.lang.String, boolean, long) + */ + @Override + public void requestServiceInfo(final String type, final String name, final boolean persistent, final long timeout) { + // We need to run this in parallel to respect the timeout. + for (final JmDNS mDNS : _knownMDNS.values()) { + _jmDNSExecutor.submit(new Runnable() { + /** + * {@inheritDoc} + */ + @Override + public void run() { + mDNS.requestServiceInfo(type, name, persistent, timeout); + } + }); + } + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#addServiceTypeListener(javax.jmdns.ServiceTypeListener) + */ + @Override + public void addServiceTypeListener(ServiceTypeListener listener) throws IOException { + for (JmDNS mDNS : _knownMDNS.values()) { + mDNS.addServiceTypeListener(listener); + } + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#removeServiceTypeListener(javax.jmdns.ServiceTypeListener) + */ + @Override + public void removeServiceTypeListener(ServiceTypeListener listener) { + for (JmDNS mDNS : _knownMDNS.values()) { + mDNS.removeServiceTypeListener(listener); + } + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#addServiceListener(java.lang.String, javax.jmdns.ServiceListener) + */ + @Override + public void addServiceListener(String type, ServiceListener listener) { + for (JmDNS mDNS : _knownMDNS.values()) { + mDNS.addServiceListener(type, listener); + } + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#removeServiceListener(java.lang.String, javax.jmdns.ServiceListener) + */ + @Override + public void removeServiceListener(String type, ServiceListener listener) { + for (JmDNS mDNS : _knownMDNS.values()) { + mDNS.removeServiceListener(type, listener); + } + } + + /* + * (non-Javadoc) + * @see javax.jmdns.impl.ServiceInfoImpl.Delegate#textValueUpdated(javax.jmdns.ServiceInfo, byte[]) + */ + @Override + public void textValueUpdated(ServiceInfo target, byte[] value) { + synchronized (_services) { + for (JmDNS mDNS : _knownMDNS.values()) { + ServiceInfo info = ((JmDNSImpl) mDNS).getServices().get(target.getQualifiedName()); + if (info != null) { + info.setText(value); + } else { + logger.warning("We have a mDNS that does not know about the service info being updated."); + } + } + } + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#registerService(javax.jmdns.ServiceInfo) + */ + @Override + public void registerService(ServiceInfo info) throws IOException { + // This is really complex. We need to clone the service info for each DNS but then we loose the ability to update it. + synchronized (_services) { + for (JmDNS mDNS : _knownMDNS.values()) { + mDNS.registerService(info.clone()); + } + ((ServiceInfoImpl) info).setDelegate(this); + _services.put(info.getQualifiedName(), info); + } + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#unregisterService(javax.jmdns.ServiceInfo) + */ + @Override + public void unregisterService(ServiceInfo info) { + synchronized (_services) { + for (JmDNS mDNS : _knownMDNS.values()) { + mDNS.unregisterService(info); + } + ((ServiceInfoImpl) info).setDelegate(null); + _services.remove(info.getQualifiedName()); + } + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#unregisterAllServices() + */ + @Override + public void unregisterAllServices() { + synchronized (_services) { + for (JmDNS mDNS : _knownMDNS.values()) { + mDNS.unregisterAllServices(); + } + _services.clear(); + } + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#registerServiceType(java.lang.String) + */ + @Override + public void registerServiceType(String type) { + for (JmDNS mDNS : _knownMDNS.values()) { + mDNS.registerServiceType(type); + } + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#list(java.lang.String) + */ + @Override + public ServiceInfo[] list(String type) { + return this.list(type, DNSConstants.SERVICE_INFO_TIMEOUT); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#list(java.lang.String, long) + */ + @Override + public ServiceInfo[] list(final String type, final long timeout) { + // We need to run this in parallel to respect the timeout. + final Set<ServiceInfo> result = Collections.synchronizedSet(new HashSet<ServiceInfo>(_knownMDNS.size() * 5)); + ExecutorService executor = Executors.newCachedThreadPool(); + for (final JmDNS mDNS : _knownMDNS.values()) { + executor.submit(new Runnable() { + /** + * {@inheritDoc} + */ + @Override + public void run() { + result.addAll(Arrays.asList(mDNS.list(type, timeout))); + } + }); + } + executor.shutdown(); + try { + executor.awaitTermination(timeout, TimeUnit.MILLISECONDS); + } catch (InterruptedException exception) { + logger.log(Level.WARNING, "Exception ", exception); + } + return result.toArray(new ServiceInfo[result.size()]); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#listBySubtype(java.lang.String) + */ + @Override + public Map<String, ServiceInfo[]> listBySubtype(String type) { + return this.listBySubtype(type, DNSConstants.SERVICE_INFO_TIMEOUT); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#listBySubtype(java.lang.String, long) + */ + @Override + public Map<String, ServiceInfo[]> listBySubtype(final String type, final long timeout) { + Map<String, List<ServiceInfo>> map = new HashMap<String, List<ServiceInfo>>(5); + for (ServiceInfo info : this.list(type, timeout)) { + String subtype = info.getSubtype(); + if (!map.containsKey(subtype)) { + map.put(subtype, new ArrayList<ServiceInfo>(10)); + } + map.get(subtype).add(info); + } + + Map<String, ServiceInfo[]> result = new HashMap<String, ServiceInfo[]>(map.size()); + for (String subtype : map.keySet()) { + List<ServiceInfo> infoForSubType = map.get(subtype); + result.put(subtype, infoForSubType.toArray(new ServiceInfo[infoForSubType.size()])); + } + + return result; + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#addNetworkTopologyListener(javax.jmdns.NetworkTopologyListener) + */ + @Override + public void addNetworkTopologyListener(NetworkTopologyListener listener) { + _networkListeners.add(listener); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#removeNetworkTopologyListener(javax.jmdns.NetworkTopologyListener) + */ + @Override + public void removeNetworkTopologyListener(NetworkTopologyListener listener) { + _networkListeners.remove(listener); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.JmmDNS#networkListeners() + */ + @Override + public NetworkTopologyListener[] networkListeners() { + return _networkListeners.toArray(new NetworkTopologyListener[_networkListeners.size()]); + } + + /* + * (non-Javadoc) + * @see javax.jmdns.NetworkTopologyListener#inetAddressAdded(javax.jmdns.NetworkTopologyEvent) + */ + @Override + public void inetAddressAdded(NetworkTopologyEvent event) { + InetAddress address = event.getInetAddress(); + try { + synchronized (this) { + if (!_knownMDNS.containsKey(address)) { + _knownMDNS.put(address, JmDNS.create(address)); + final NetworkTopologyEvent jmdnsEvent = new NetworkTopologyEventImpl(_knownMDNS.get(address), address); + for (final NetworkTopologyListener listener : this.networkListeners()) { + _ListenerExecutor.submit(new Runnable() { + /** + * {@inheritDoc} + */ + @Override + public void run() { + listener.inetAddressAdded(jmdnsEvent); + } + }); + } + } + } + } catch (Exception e) { + logger.warning("Unexpected unhandled exception: " + e); + } + } + + /* + * (non-Javadoc) + * @see javax.jmdns.NetworkTopologyListener#inetAddressRemoved(javax.jmdns.NetworkTopologyEvent) + */ + @Override + public void inetAddressRemoved(NetworkTopologyEvent event) { + InetAddress address = event.getInetAddress(); + try { + synchronized (this) { + if (_knownMDNS.containsKey(address)) { + JmDNS mDNS = _knownMDNS.remove(address); + mDNS.close(); + final NetworkTopologyEvent jmdnsEvent = new NetworkTopologyEventImpl(mDNS, address); + for (final NetworkTopologyListener listener : this.networkListeners()) { + _ListenerExecutor.submit(new Runnable() { + /** + * {@inheritDoc} + */ + @Override + public void run() { + listener.inetAddressRemoved(jmdnsEvent); + } + }); + } + } + } + } catch (Exception e) { + logger.warning("Unexpected unhandled exception: " + e); + } + } + + /** + * Checks the network state.<br/> + * If the network change, this class will reconfigure the list of DNS do adapt to the new configuration. + */ + static class NetworkChecker extends TimerTask { + private static Logger logger1 = Logger.getLogger(NetworkChecker.class.getName()); + + private final NetworkTopologyListener _mmDNS; + + private final NetworkTopologyDiscovery _topology; + + private Set<InetAddress> _knownAddresses; + + public NetworkChecker(NetworkTopologyListener mmDNS, NetworkTopologyDiscovery topology) { + super(); + this._mmDNS = mmDNS; + this._topology = topology; + _knownAddresses = Collections.synchronizedSet(new HashSet<InetAddress>()); + } + + public void start(Timer timer) { + timer.schedule(this, 0, DNSConstants.NETWORK_CHECK_INTERVAL); + } + + /** + * {@inheritDoc} + */ + @Override + public void run() { + try { + InetAddress[] curentAddresses = _topology.getInetAddresses(); + Set<InetAddress> current = new HashSet<InetAddress>(curentAddresses.length); + for (InetAddress address : curentAddresses) { + current.add(address); + if (!_knownAddresses.contains(address)) { + final NetworkTopologyEvent event = new NetworkTopologyEventImpl(_mmDNS, address); + _mmDNS.inetAddressAdded(event); + } + } + for (InetAddress address : _knownAddresses) { + if (!current.contains(address)) { + final NetworkTopologyEvent event = new NetworkTopologyEventImpl(_mmDNS, address); + _mmDNS.inetAddressRemoved(event); + } + } + _knownAddresses = current; + } catch (Exception e) { + logger1.warning("Unexpected unhandled exception: " + e); + } + } + + } + +} |