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https://github.com/Alfresco/alfresco-community-repo.git
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e1e6508fec
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2005 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
123 lines
3.7 KiB
Java
123 lines
3.7 KiB
Java
/*
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* Copyright (C) 2005 Alfresco, Inc.
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*
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* Licensed under the Mozilla Public License version 1.1
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* with a permitted attribution clause. You may obtain a
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* copy of the License at
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*
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* http://www.alfresco.org/legal/license.txt
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific
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* language governing permissions and limitations under the
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* License.
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*/
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package org.alfresco.filesys.smb.mailslot;
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import org.alfresco.filesys.netbios.NetBIOSName;
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import org.alfresco.filesys.netbios.win32.NetBIOS;
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import org.alfresco.filesys.netbios.win32.NetBIOSSocket;
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import org.alfresco.filesys.netbios.win32.Win32NetBIOS;
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import org.alfresco.filesys.smb.server.win32.Win32NetBIOSSessionSocketHandler;
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/**
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* Winsock NetBIOS Host Announcer Class
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*
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* <p>
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* The host announcer class periodically broadcasts a host announcement datagram to inform other
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* Windows networking hosts of the local hosts existence and capabilities.
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*
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* <p>
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* The Win32 NetBIOS host announcer sends out the announcements using datagrams sent via Winsock calls.
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*/
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public class WinsockNetBIOSHostAnnouncer extends HostAnnouncer
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{
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// Associated session handler
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private Win32NetBIOSSessionSocketHandler m_handler;
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// Winsock NetBIOS datagram socket
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private NetBIOSSocket m_dgramSocket;
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/**
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* Create a host announcer.
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*
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* @param sessHandler Win32NetBIOSSessionSocketHandler
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* @param domain Domain name to announce to
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* @param intval Announcement interval, in minutes
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*/
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public WinsockNetBIOSHostAnnouncer(Win32NetBIOSSessionSocketHandler handler, String domain, int intval)
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{
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// Save the handler
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m_handler = handler;
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// Add the host to the list of names to announce
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addHostName(handler.getServerName());
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setDomain(domain);
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setInterval(intval);
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}
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/**
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* Return the LANA
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*
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* @return int
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*/
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public final int getLana()
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{
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return m_handler.getLANANumber();
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}
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/**
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* Initialize the host announcer.
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*
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* @exception Exception
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*/
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protected void initialize() throws Exception
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{
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// Set the thread name
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setName("WinsockHostAnnouncer_L" + getLana());
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// Create the Winsock NetBIOS datagram socket
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m_dgramSocket = NetBIOSSocket.createDatagramSocket(getLana());
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}
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/**
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* Determine if the network connection used for the host announcement is valid
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*
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* @return boolean
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*/
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public boolean isNetworkEnabled()
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{
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return m_handler.isLANAValid();
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}
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/**
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* Send an announcement broadcast.
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*
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* @param hostName Host name being announced
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* @param buf Buffer containing the host announcement mailslot message.
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* @param offset Offset to the start of the host announcement message.
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* @param len Host announcement message length.
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*/
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protected void sendAnnouncement(String hostName, byte[] buf, int offset, int len) throws Exception
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{
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// Build the destination NetBIOS name using the domain/workgroup name
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NetBIOSName destNbName = new NetBIOSName(getDomain(), NetBIOSName.MasterBrowser, false);
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// Send the host announce datagram via the Win32 Netbios() API call
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int sts = m_dgramSocket.sendDatagram(destNbName, buf, 0, len);
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if ( sts != len)
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logger.debug("WinsockNetBIOS host announce error");
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}
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} |