/
ModuleStreamResolver.java
1013 lines (902 loc) · 43.6 KB
/
ModuleStreamResolver.java
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/*
* This code and all components (c) Copyright 2006 - 2020, Wowza Media Systems, LLC. All rights reserved.
* This code is licensed pursuant to the Wowza Public License version 1.0, available at www.wowza.com/legal.
*/
package com.wowza.wms.plugin.streamresolver;
import com.wowza.util.JSON;
import com.wowza.util.StringUtils;
import com.wowza.util.XMLUtils;
import com.wowza.wms.application.ApplicationInstance;
import com.wowza.wms.application.IApplicationInstance;
import com.wowza.wms.application.WMSProperties;
import com.wowza.wms.bootstrap.Bootstrap;
import com.wowza.wms.client.IClient;
import com.wowza.wms.httpstreamer.cupertinostreaming.httpstreamer.HTTPStreamerSessionCupertino;
import com.wowza.wms.httpstreamer.model.HTTPStreamerItem;
import com.wowza.wms.httpstreamer.model.IHTTPStreamerSession;
import com.wowza.wms.httpstreamer.mpegdashstreaming.httpstreamer.HTTPStreamerSessionMPEGDash;
import com.wowza.wms.httpstreamer.sanjosestreaming.httpstreamer.HTTPStreamerSessionSanJose;
import com.wowza.wms.httpstreamer.smoothstreaming.httpstreamer.HTTPStreamerSessionSmoothStreamer;
import com.wowza.wms.logging.WMSLogger;
import com.wowza.wms.logging.WMSLoggerFactory;
import com.wowza.wms.logging.WMSLoggerIDs;
import com.wowza.wms.mediacaster.*;
import com.wowza.wms.mediacaster.wowza.LiveMediaStreamReceiver;
import com.wowza.wms.medialist.MediaList;
import com.wowza.wms.medialist.MediaListRendition;
import com.wowza.wms.medialist.MediaListSegment;
import com.wowza.wms.module.ModuleBase;
import com.wowza.wms.rtp.model.RTPSession;
import com.wowza.wms.stream.*;
import com.wowza.wms.util.MediaListUtils;
import com.wowza.wms.util.ModuleUtils;
import com.wowza.wms.vhost.IVHost;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.xpath.XPathFactory;
import java.io.*;
import java.util.*;
import java.util.concurrent.*;
public class ModuleStreamResolver extends ModuleBase
{
class AliasProvider extends MediaStreamNameAliasProviderBase
{
@Override
public String resolvePlayAlias(IApplicationInstance appInstance, String name)
{
if (isMediaList(name))
return name;
String ret = getStreamName(name);
// AppInstances will stay loaded until there is at least 1 valid connection.
// Increment the connection count to allow the appInstnace to shut down if there are no other connection attempts.
if (ret == null && appInstance.getClientCountTotal() <= 0)
{
appInstance.incClientCountTotal();
((ApplicationInstance) appInstance).setClientRemoveTime(System.currentTimeMillis());
}
return ret;
}
@Override
public String resolvePlayAlias(IApplicationInstance appInstance, String name, IClient client)
{
if (isMediaList(name))
return name;
String ret = getStreamName(name);
// AppInstances will stay loaded until there is at least 1 valid connection.
// Increment the connection count to allow the appInstnace to shut down if there are no other connection attempts.
if (ret == null && appInstance.getClientCountTotal() <= 0)
{
appInstance.incClientCountTotal();
((ApplicationInstance) appInstance).setClientRemoveTime(System.currentTimeMillis());
}
return ret;
}
@Override
public String resolvePlayAlias(IApplicationInstance appInstance, String name, IHTTPStreamerSession httpSession)
{
if (isMediaList(name))
{
if (!checkMediaListAvailability(appInstance, name, httpSession))
return null;
return name;
}
String packetizer = null;
String repeater = null;
if (httpSession != null && httpSession.getHTTPStreamerAdapter() != null)
{
HTTPStreamerItem item = httpSession.getHTTPStreamerAdapter().getHTTPStreamerItem();
if (item != null)
{
// TODO: rl Need to come up with a different way to do this.
packetizer = item.getLiveStreamPacketizer();
repeater = item.getLiveStreamRepeater();
}
}
if (packetizer == null)
packetizer = resolvePacketizer(httpSession);
if (repeater == null)
repeater = resolveRepeater(httpSession);
String streamName = getStreamName(name, packetizer, repeater);
// AppInstances will stay loaded until there is at least 1 valid connection.
// Increment the connection count to allow the appInstnace to shut down if there are no other connection attempts.
if (streamName == null && appInstance.getClientCountTotal() <= 0)
{
appInstance.incClientCountTotal();
((ApplicationInstance) appInstance).setClientRemoveTime(System.currentTimeMillis());
}
if (StringUtils.isEmpty(streamName))
{
if (debug)
logger.info(MODULE_NAME + ".resolvePlayAlias[HttpStreamerSession] after getSteamName [" + appInstance.getContextStr() + "/" + "[" + packetizer + "|" + repeater + "]" + name + "] returned streamName is null", WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
// if(httpSession != null)
// {
// String sessionStreamName = httpSession.getStreamName();
// if (debug)
// logger.info(MODULE_NAME + ".resolvePlayAlias[HttpStreamerSession] after getSteamName [" + appInstance.getContextStr() + "/" + "[" + packetizer + "|" + repeater + "]" + name + "] check sessionStreamName: " + sessionStreamName, WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
// if(isMediaList(sessionStreamName))
// {
// if (debug)
// logger.info(MODULE_NAME + ".resolvePlayAlias[HttpStreamerSession] after getSteamName [" + appInstance.getContextStr() + "/" + "[" + packetizer + "|" + repeater + "]" + name + "] sessionStreamName is a MediaList. return mediaList rendition name : " + name, WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
// return name;
// }
// }
return null;
}
// need to manually register players for smil
// [cupertinostreamingpacketizer|cupertinostreamingrepeater]cupertinostreamingpacketizer_myStream
String mediaCasterId = "[" + packetizer + "|" + repeater + "]" + streamName;
if (debug)
logger.info(MODULE_NAME + ".resolvePlayAlias[HttpStreamerSession] before adding player for [" + appInstance.getContextStr() + "/" + mediaCasterId + "] players: " + players.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
IMediaStream stream = httpSession.getStream();
if (stream != null && !stream.isMediaCasterPlay())
{
IMediaStreamPlay player = stream.getPlayer();
if (player != null)
{
synchronized (lock)
{
List<IMediaStreamPlay> playerList = players.get(mediaCasterId);
if (playerList == null)
{
playerList = new ArrayList<IMediaStreamPlay>();
players.put(mediaCasterId, playerList);
}
if (!playerList.contains(player))
{
playerList.add(player);
if (debug)
logger.info(MODULE_NAME + ".resolvePlayAlias[HttpStreamerSession] after adding player for [" + appInstance.getContextStr() + "/" + mediaCasterId + "] players: " + players.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
}
}
}
}
return streamName;
}
private String resolvePacketizer(IHTTPStreamerSession httpSession)
{
String ret = null;
if (httpSession instanceof HTTPStreamerSessionCupertino)
ret = "cupertinostreamingpacketizer";
else if (httpSession instanceof HTTPStreamerSessionSanJose)
ret = "sanjosestreamingpacketizer";
else if (httpSession instanceof HTTPStreamerSessionSmoothStreamer)
ret = "smoothstreamingpacketizer";
else if (httpSession instanceof HTTPStreamerSessionMPEGDash)
ret = "mpegdashstreamingpacketizer";
return ret;
}
private String resolveRepeater(IHTTPStreamerSession httpSession)
{
String ret = null;
if (httpSession instanceof HTTPStreamerSessionCupertino)
ret = "cupertinostreamingrepeater";
else if (httpSession instanceof HTTPStreamerSessionSanJose)
ret = "sanjosestreamingrepeater";
else if (httpSession instanceof HTTPStreamerSessionSmoothStreamer)
ret = "smoothstreamingrepeater";
else if (httpSession instanceof HTTPStreamerSessionMPEGDash)
ret = "mpegdashstreamingrepeater";
return ret;
}
@Override
public String resolvePlayAlias(IApplicationInstance appInstance, String name, RTPSession rtpSession)
{
if (isMediaList(name))
return name;
String ret = getStreamName(name);
// AppInstances will stay loaded until there is at least 1 valid connection.
// Increment the connection count to allow the appInstnace to shut down if there are no other connection attempts.
if (ret == null && appInstance.getClientCountTotal() <= 0)
{
appInstance.incClientCountTotal();
((ApplicationInstance) appInstance).setClientRemoveTime(System.currentTimeMillis());
}
return ret;
}
private String getStreamName(String name)
{
return getStreamName(name, null, null);
}
private String getStreamName(String name, String packetizer, String repeater)
{
name = appInstance.getProperties().getPropertyStr(MODULE_PROPERTY_PREFIX + "OriginStreamName", name);
name = ModuleUtils.decodeStreamExtension(name, null)[0];
String nameContext = /*packetizer != null ? packetizer + "_" + name :*/ name;
if (debug)
logger.info(ModuleStreamResolver.MODULE_NAME + ".getStreamName[" + nameContext + "] ");
MediaCasterStreamItem mediaCasterStreamItem = appInstance.getMediaCasterStreams().getMediaCaster(nameContext, packetizer, repeater);
IMediaCaster mediaCaster = null;
if (mediaCasterStreamItem != null)
{
mediaCaster = mediaCasterStreamItem.getMediaCaster();
if (mediaCaster != null)
{
int timeoutReason = mediaCaster.getStreamTimeoutReason();
if (timeoutReason == MediaCaster.STREAMTIMEOUTREASON_GOOD)
return nameContext;
}
}
String url = lookupURL(nameContext, false);
if (!StringUtils.isEmpty(url) && mediaCaster != null && mediaCaster instanceof LiveMediaStreamReceiver)
((LiveMediaStreamReceiver) mediaCaster).resolveURL();
return StringUtils.isEmpty(url) ? null : nameContext;
}
@Override
public String resolveStreamAlias(IApplicationInstance appInstance, String name)
{
String url = "";
if (debug)
logger.info(MODULE_NAME + ".resolveStreamAlias getting url for [" + appInstance.getContextStr() + "/" + name + "] urls: " + urls.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
if (isStreamUrl(name) || isMediaList(name))
return name;
synchronized (lock)
{
url = urls.get(name);
if (debug)
logger.info(MODULE_NAME + ".resolveStreamAlias got url for [" + appInstance.getContextStr() + "/" + name + "]: url: " + url + ", urls: " + urls.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
}
return StringUtils.isEmpty(url) ? "" : url;
}
@Override
public String resolveStreamAlias(IApplicationInstance appInstance, String name, IMediaCaster mediaCaster)
{
String url = "";
if (debug)
logger.info(MODULE_NAME + ".resolveStreamAlias2 getting url for [" + appInstance.getContextStr() + "/" + name + "] urls: " + urls.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
if (isStreamUrl(name) || isMediaList(name))
return name;
synchronized (lock)
{
url = urls.get(name);
if (debug)
logger.info(MODULE_NAME + ".resolveStreamAlias2 got url for [" + appInstance.getContextStr() + "/" + name + "]: url: " + url + ", urls: " + urls.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
}
return StringUtils.isEmpty(url) ? "" : url;
}
}
class MediaCasterShutdownRunner implements Runnable
{
final LiveMediaStreamReceiver liveMediaStreamReceiver;
MediaCasterShutdownRunner(LiveMediaStreamReceiver liveMediaStreamReceiver)
{
this.liveMediaStreamReceiver = liveMediaStreamReceiver;
}
@Override
public void run()
{
MediaCasterStreamItem item = liveMediaStreamReceiver.getMediaCasterStreamItem();
if (item != null)
{
appInstance.getMediaCasterStreams().remove(item);
item.shutdown(false);
}
}
}
class MediaCasterListener extends MediaCasterNotifyBase
{
@Override
public void onMediaCasterCreate(IMediaCaster mediaCaster)
{
// Detect missing url and shut down mediaCaster otherwise we have to wait for it to time out.
if (mediaCaster instanceof LiveMediaStreamReceiver && !((LiveMediaStreamReceiver) mediaCaster).isTryConnect())
{
if (debug)
logger.info(MODULE_NAME + ".onMediaCasterCreate shutting down mediaCaster due to no url: [" + appInstance.getContextStr() + "/" + mediaCaster.getMediaCasterId() + "]");
appInstance.getVHost().getThreadPool().execute(new MediaCasterShutdownRunner((LiveMediaStreamReceiver) mediaCaster));
}
}
@Override
public void onRegisterPlayer(IMediaCaster mediaCaster, IMediaStreamPlay player)
{
String mediaCasterId = mediaCaster.getMediaCasterId();
if (mediaCaster instanceof LiveMediaStreamReceiver)
{
if (debug)
logger.info(MODULE_NAME + ".onRegisterPlayer before adding player for [" + appInstance.getContextStr() + "/" + mediaCasterId + "] players: " + players.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
synchronized (lock)
{
List<IMediaStreamPlay> playerList = players.get(mediaCasterId);
if (playerList == null)
{
playerList = new ArrayList<IMediaStreamPlay>();
players.put(mediaCasterId, playerList);
}
playerList.add(player);
if (debug)
logger.info(MODULE_NAME + ".onRegisterPlayer after adding player for [" + appInstance.getContextStr() + "/" + mediaCasterId + "] players: " + players.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
}
}
}
@Override
public void onUnRegisterPlayer(IMediaCaster mediaCaster, IMediaStreamPlay player)
{
String mediaCasterId = mediaCaster.getMediaCasterId();
if (mediaCaster instanceof LiveMediaStreamReceiver)
{
if (debug)
logger.info(MODULE_NAME + ".onUnRegisterPlayer before removing player for [" + appInstance.getContextStr() + "/" + mediaCasterId + "] players: " + players.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
synchronized (lock)
{
List<IMediaStreamPlay> playerList = players.get(mediaCasterId);
if (playerList != null)
{
playerList.remove(player);
}
if (debug)
logger.info(MODULE_NAME + ".onUnRegisterPlayer after removing player for [" + appInstance.getContextStr() + "/" + mediaCasterId + "] players: " + players.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
}
}
}
@Override
public void onConnectSuccess(IMediaCaster mediaCaster)
{
if (mediaCaster instanceof LiveMediaStreamReceiver)
{
if (debug)
{
logger.info(ModuleStreamResolver.MODULE_NAME + "onConnectSuccess name: " + mediaCaster.getMediaCasterId());
logger.info(ModuleStreamResolver.MODULE_NAME + "onConnectSuccess isTryConnect: " + ((LiveMediaStreamReceiver) mediaCaster).isTryConnect());
logger.info(ModuleStreamResolver.MODULE_NAME + "onConnectSuccess isValid: " + mediaCaster.getMediaCasterStreamItem().isValid());
}
LiveMediaStreamReceiver liveMediaStreamReceiver = (LiveMediaStreamReceiver) mediaCaster;
int retryCount = liveMediaStreamReceiver.getProperties().getPropertyInt("connectRetryCount", 0);
if (++retryCount > maxRetries)
{
System.out.println("onConnectSuccess calling resolveMediaCasterURL: " + retryCount);
resolveMediaCasterURL(liveMediaStreamReceiver);
}
liveMediaStreamReceiver.getProperties().setProperty("connectRetryCount", retryCount);
}
}
@Override
public void onConnectFailure(final IMediaCaster mediaCaster)
{
if (mediaCaster instanceof LiveMediaStreamReceiver)
{
System.out.println("onConnectFalure calling resolveMediaCasterURL");
resolveMediaCasterURL((LiveMediaStreamReceiver) mediaCaster);
}
}
private void resolveMediaCasterURL(final LiveMediaStreamReceiver mediaCaster)
{
appInstance.getVHost().getThreadPool().execute(new Runnable()
{
@Override
public void run()
{
mediaCaster.getProperties().remove("connectRetryCount");
MediaCasterStreamId streamId = MediaCasterItem.parseIdString(mediaCaster.getMediaCasterId());
String streamName = streamId.getName();
String packetizer = streamId.getLiveStreamPacketizer();
if (debug)
logger.info(ModuleStreamResolver.MODULE_NAME + ".onMediaCasterCreate resolving stream name: [" + appInstance.getContextStr() + "/" + streamName + "]");
String newURL = lookupURL(streamName, true);
if (StringUtils.isEmpty(newURL))
{
if (debug)
logger.info(MODULE_NAME + ".onMediaCasterCreate shutting down players due to no mediaCaster url: [" + appInstance.getContextStr() + "/" + streamName + "]");
shutdownPlayers(mediaCaster);
if (debug)
logger.info(MODULE_NAME + ".onMediaCasterCreate shutting down mediaCaster due to no url: [" + appInstance.getContextStr() + "/" + mediaCaster.getMediaCasterId() + "]");
mediaCaster.setTryConnect(false);
appInstance.getVHost().getThreadPool().execute(new MediaCasterShutdownRunner((LiveMediaStreamReceiver) mediaCaster));
} else
{
mediaCaster.resolveURL();
}
}
});
}
private void shutdownPlayers(final IMediaCaster mediaCaster)
{
String mediaCasterId = mediaCaster.getMediaCasterId();
List<IMediaStreamPlay> playerList = null;
if (debug)
logger.info(MODULE_NAME + ".shutdownPlayers before removing player list for [" + appInstance.getContextStr() + "/" + mediaCasterId + "] players: " + players.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
synchronized (lock)
{
playerList = players.remove(mediaCasterId);
if (debug)
logger.info(MODULE_NAME + ".shutdownPlayers after removing player list for [" + appInstance.getContextStr() + "/" + mediaCasterId + "] players: " + players.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
}
if (playerList != null)
{
if (debug)
logger.info(MODULE_NAME + ".shutdownPlayers waiting for lock for [" + appInstance.getContextStr() + "/" + mediaCasterId + "]", WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
// WMSReadWriteLock writeLock = appInstance.getClientsLockObj();
// writeLock.writeLock().lock();
try
{
if (debug)
logger.info(MODULE_NAME + ".shutdownPlayers got lock for [" + appInstance.getContextStr() + "/" + mediaCasterId + "]", WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
for (IMediaStreamPlay player : playerList)
{
IMediaStream stream = player.getParent();
if (stream != null)
{
if (stream.getClient() != null)
{
stream.getClient().setShutdownClient(true);
}
if (stream.getRTPStream() != null)
{
appInstance.getVHost().getRTPContext().shutdownRTPSession(stream.getRTPStream().getSession());
}
if (stream.getHTTPStreamerSession() != null)
{
stream.getHTTPStreamerSession().rejectSession();
stream.getHTTPStreamerSession().setDeleteSession();
}
}
}
} catch (Exception e)
{
getLogger().error("ModuleStreamResolver.MediaCasterListener.shutdownPlayers exception: " + e.getMessage(), e);
} finally
{
// writeLock.writeLock().unlock();
if (debug)
logger.info(MODULE_NAME + ".shutdownPlayers released lock for [" + appInstance.getContextStr() + "/" + mediaCasterId + "]", WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
}
}
}
@Override
public void onMediaCasterDestroy(IMediaCaster mediaCaster)
{
String mediaCasterId = mediaCaster.getMediaCasterId();
String streamName = MediaCasterItem.parseIdString(mediaCasterId).getName();
if (mediaCaster instanceof LiveMediaStreamReceiver)
{
if (debug)
logger.info(MODULE_NAME + ".onMediaCasterDestroy before removing url and players for [" + appInstance.getContextStr() + "/(" + streamName + ":" + mediaCasterId + ")] urls: " + urls.toString() + ", players: " + players.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
synchronized (lock)
{
urls.remove(streamName);
players.remove(mediaCasterId);
if (debug)
logger.info(MODULE_NAME + ".onMediaCasterDestroy after removing url and players for [" + appInstance.getContextStr() + "/(" + streamName + ":" + mediaCasterId + ")] urls: " + urls.toString() + ", players: " + players.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
}
}
}
@Override
public void onStreamStart(IMediaCaster mediaCaster)
{
if (mediaCaster instanceof LiveMediaStreamReceiver)
{
((LiveMediaStreamReceiver) mediaCaster).getProperties().remove("connectRetryCount");
}
}
@Override
public void onStreamStop(IMediaCaster mediaCaster)
{
if (mediaCaster instanceof LiveMediaStreamReceiver && mediaCaster.getStreamTimeoutReason() != IMediaCaster.STREAMTIMEOUTREASON_GOOD)
resolveMediaCasterURL((LiveMediaStreamReceiver) mediaCaster);
}
}
class Lookup extends Thread
{
long startTime;
String streamName;
String url;
Lookup(String streamName)
{
super(MODULE_NAME + ".Lookup [" + appInstance.getContextStr() + "/" + streamName + "]");
startTime = System.currentTimeMillis();
this.streamName = streamName;
}
public void run()
{
final List<Future<String>> futures = new ArrayList<>();
final CompletionService<String> ecs = new ExecutorCompletionService<>(executor);
try
{
String hostNames = getNewURLs();
if (debug)
logger.info("**Checking hostnames ... " + hostNames);
if (!StringUtils.isEmpty(hostNames))
{
String[] hosts = hostNames.split(",");
for (String host : hosts)
{
futures.add(ecs.submit(new StreamRequest(host, streamName, defaultApplicationInstanceName, defaultApplicationName, port, timeout)));
}
// wait for first positive result to return.
while (!futures.isEmpty())
{
Future<String> result = ecs.take();
futures.remove(result);
url = result.get();
if (url != null)
{
if (!isStreamUrl(url.toLowerCase()))
{
url = protocol + "://" + url;
url = url.trim();
}
if (debug)
logger.info(MODULE_NAME + ".Lookup.run() before adding url for [" + appInstance.getContextStr() + "/" + streamName + "] Lookup.url: " + url + ", urls: " + urls.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
synchronized (lock)
{
urls.put(streamName, url);
if (debug)
logger.info(MODULE_NAME + ".Lookup.run() after adding url for [" + appInstance.getContextStr() + "/" + streamName + "] Lookup.url: " + url + ", urls: " + urls.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
}
break;
}
}
}
} catch (Exception e)
{
} finally
{
if (!futures.isEmpty())
{
for (Future<String> future : futures)
{
future.cancel(true);
}
futures.clear();
}
if (debug)
logger.info(MODULE_NAME + ".Lookup.run() before removing lookups for [" + appInstance.getContextStr() + "/" + streamName + "] lookups: " + lookups.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
synchronized (lock)
{
lookups.remove(streamName);
if (debug)
logger.info(MODULE_NAME + ".Lookup.run() after removing lookups for [" + appInstance.getContextStr() + "/" + streamName + "] lookups: " + lookups.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
}
}
}
public String toString()
{
return "Lookup: {streamName: " + streamName + ", name: " + streamName + ", startTime: " + startTime + ", url: " + url + "}";
}
}
class StreamRequest implements Callable<String>
{
private final String appName;
private final String appInstance;
private final String streamName;
private final String host;
private final int port;
private final int udpTimeout;
public StreamRequest(String host, String streamName, String appInstance, String appName, int port, int udpTimeout)
{
this.streamName = streamName;
this.appInstance = appInstance;
this.appName = appName;
this.port = port;
this.udpTimeout = udpTimeout;
this.host = host;
}
private String sendUDPMessage()
{
if (debug)
logger.info(MODULE_NAME + "[sendUDPMessage] this.host:: " + host + " :: this.port :: " + port);
UDPClient udp = new UDPClient(host, port, udpTimeout, logger, debug);
String remoteStreamName = streamName;
if (remoteStreamName.contains("/"))
{
String[] parts = remoteStreamName.split("/");
remoteStreamName = parts[parts.length - 1].trim();
}
Message message = new Message();
message.streamName = remoteStreamName;
message.appInstance = appInstance;
message.appName = appName;
String response = udp.send(message);
if (debug)
logger.info(MODULE_NAME + "[sendUDPMessage] response from host :: " + host + " :: " + response);
if (response != null && response.length() > 0)
{
try
{
JSON json = new JSON(response);
if (!json.containsKey("error"))
{
String server = json.getString("server");
return server;
}
} catch (Exception e)
{
logger.error(MODULE_NAME + "[sendUDPMessage] error parsing response from host :: " + host + " :: " + response, e);
}
}
return null;
}
@Override
public String call() throws Exception
{
return sendUDPMessage();
}
}
public static String MODULE_NAME = "ModuleStreamResolver";
public static String MODULE_PROPERTY_PREFIX = "wowzaResolver";
private static final int _UDP_PORT = 9777;
private static final int _UDP_REQUEST_TIMEOUT = 2000;
private static final String _PROTOCOL = "wowz";
private static Executor executor = Executors.newCachedThreadPool();
private Object lock = new Object();
private Map<String, Lookup> lookups = new HashMap<String, Lookup>();
private Map<String, String> urls = new HashMap<String, String>();
private Map<String, List<IMediaStreamPlay>> players = new HashMap<String, List<IMediaStreamPlay>>();
private int port;
private int timeout;
private int maxRetries = 2;
private String protocol = "";
private IApplicationInstance appInstance;
private String targetPath = null;
private boolean useExternalFile = false;
private long lastFileModification = 0L;
private String lastOriginSetting = "";
private WMSLogger logger = null;
private boolean debug = false;
private String defaultApplicationName;
private String defaultApplicationInstanceName;
public void onAppStart(IApplicationInstance appInstance)
{
this.appInstance = appInstance;
logger = WMSLoggerFactory.getLoggerObj(appInstance);
port = appInstance.getProperties().getPropertyInt(MODULE_PROPERTY_PREFIX + "UDPClientPort", _UDP_PORT);
timeout = appInstance.getProperties().getPropertyInt(MODULE_PROPERTY_PREFIX + "UDPClientTimeout", _UDP_REQUEST_TIMEOUT);
protocol = appInstance.getProperties().getPropertyStr(MODULE_PROPERTY_PREFIX + "Protocol", _PROTOCOL);
maxRetries = appInstance.getProperties().getPropertyInt(MODULE_PROPERTY_PREFIX + "ConnectMaxRetries", maxRetries);
debug = appInstance.getProperties().getPropertyBoolean(MODULE_PROPERTY_PREFIX + "DebugLog", debug);
if (logger.isDebugEnabled())
debug = true;
if (debug)
MediaCaster.debugLog = true;
if (appInstance.getProperties().containsKey(MODULE_PROPERTY_PREFIX + "ConfTargetPath"))
{
useExternalFile = true;
targetPath = appInstance.decodeStorageDir(appInstance.getProperties().getPropertyStr(MODULE_PROPERTY_PREFIX + "ConfTargetPath", null));
}
defaultApplicationName = appInstance.getProperties().getPropertyStr(MODULE_PROPERTY_PREFIX + "OriginApplicationName", appInstance.getApplication().getName());
defaultApplicationInstanceName = appInstance.getProperties().getPropertyStr(MODULE_PROPERTY_PREFIX + "OriginApplicationInstanceName", appInstance.getName());
logger.info(MODULE_NAME + ".onAppStart [" + appInstance.getContextStr() + " : build #49]");
appInstance.setStreamNameAliasProvider(new AliasProvider());
appInstance.addMediaCasterListener(new MediaCasterListener());
}
public void onStreamDestroy(IMediaStream stream)
{
if (stream != null && !stream.isMediaCasterPlay())
{
IMediaStreamPlay player = stream.getPlayer();
if (player != null)
{
synchronized (lock)
{
Iterator<String> iter = players.keySet().iterator();
while (iter.hasNext())
{
players.get(iter.next()).remove(player);
}
}
}
}
}
public void onHTTPSessionDestroy(IHTTPStreamerSession httpSession)
{
// remove players added in resolvePlayAlias methods. Other players will be removed in onUnRegisterPlayer
IMediaStream stream = httpSession.getStream();
if (stream != null && !stream.isMediaCasterPlay())
{
IMediaStreamPlay player = stream.getPlayer();
if (player != null)
{
synchronized (lock)
{
Iterator<String> iter = players.keySet().iterator();
while (iter.hasNext())
{
players.get(iter.next()).remove(player);
}
}
}
}
}
private String getNewURLs()
{
if (useExternalFile)
{
return getNewURLsFromConfig();
}
return getNewPropertyURLs();
}
private String getNewURLsFromConfig()
{
long lastModified = 0L;
try
{
if (targetPath == null || targetPath.isEmpty())
{
logger.error(ModuleStreamResolver.MODULE_NAME + ".getNewURLsFromConfig could not find valid target file " + targetPath);
return null;
}
File checkForFile = new File(targetPath);
if (!checkForFile.exists())
{
logger.error(ModuleStreamResolver.MODULE_NAME + ".getNewURLsFromConfig could not find valid target file " + targetPath);
return null;
}
lastModified = checkForFile.lastModified();
if (lastFileModification != 0L && lastFileModification == lastModified)
{
return lastOriginSetting;
}
} catch (Exception ex)
{
logger.error(ModuleStreamResolver.MODULE_NAME + ".getNewURLsFromConfig Exception", ex);
return null;
}
String urls = "";
FileInputStream in = null;
BufferedReader br = null;
try
{
in = new FileInputStream(targetPath);
br = new BufferedReader(new InputStreamReader(in));
String urlItem = "";
while ((urlItem = br.readLine()) != null)
{
urlItem = urlItem.trim();
if (!urlItem.startsWith("#") && urlItem.length() > 0)
{
urls += urlItem + ",";
}
}
urls = urls.replaceAll("[\\,\\s]+$", "");
} catch (Exception e)
{
logger.info(ModuleStreamResolver.MODULE_NAME + ".getNewURLsFromConfig Exception", e);
} finally
{
try
{
if (br != null)
br.close();
} catch (IOException e)
{
}
br = null;
try
{
if (in != null)
in.close();
} catch (IOException e)
{
}
in = null;
}
logger.info(ModuleStreamResolver.MODULE_NAME + ".getNewURLsFromConfig " + urls);
lastFileModification = lastModified;
lastOriginSetting = urls;
return urls;
}
private String getNewPropertyURLs()
{
String fileURL = Bootstrap.getServerHome(Bootstrap.CONFIGHOME) + "/conf/" + appInstance.getApplication().getName() + "/Application.xml";
if (debug)
{
logger.info(MODULE_NAME + ".getNewURLs: fileURL " + fileURL);
}
if (fileURL != null)
{
try
{
DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder domBuilder = domFactory.newDocumentBuilder();
Document doc = domBuilder.parse(fileURL);
XPathFactory factory = XMLUtils.newXPathFactory();
factory.newXPath();
if (doc != null)
{
Element root = doc.getDocumentElement();
XMLUtils.getVersion(root);
String propertiesXPath = "/Root/Application/Properties/Property";
WMSProperties properties = new WMSProperties();
XMLUtils.loadConfigProperies(root, propertiesXPath, properties);
return properties.getPropertyStr(MODULE_PROPERTY_PREFIX + "OriginServers", null);
}
} catch (Exception e)
{
logger.error(MODULE_NAME + "getNewURLs: error parsing app config file: (" + fileURL + ")", e);
}
}
return appInstance.getProperties().getPropertyStr(MODULE_PROPERTY_PREFIX + "OriginServers", null);
}
private String lookupURL(String nameContext, boolean forceNewLookup)
{
Lookup lookup = null;
if (debug)
logger.info(MODULE_NAME + ".lookupUrl Looking up url for [" + appInstance.getContextStr() + "/" + nameContext + "] lookups: " + lookups.toString() + ", urls: " + urls.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
synchronized (lock)
{
if (!forceNewLookup && urls.containsKey(nameContext))
{
String url = urls.get(nameContext);
if (debug)
logger.info(MODULE_NAME + ".lookupUrl from urls list, returning url for [" + appInstance.getContextStr() + "/" + nameContext + "] url: " + url, WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
return url;
}
lookup = lookups.get(nameContext);
if (lookup == null)
{
lookup = new Lookup(nameContext);
lookup.start();
lookups.put(nameContext, lookup);
if (debug)
logger.info(MODULE_NAME + ".lookupUrl adding new lookup url for [" + appInstance.getContextStr() + "/" + nameContext + "] lookup: " + lookup.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
}
}
try
{
if (debug)
logger.info(MODULE_NAME + ".lookupUrl joining existing lookup for [" + appInstance.getContextStr() + "/" + nameContext + "] lookup: " + lookup.toString(), WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
lookup.join(timeout);
} catch (InterruptedException e)
{
}
if (debug)
logger.info(MODULE_NAME + ".lookupUrl after lookup, returning url for [" + appInstance.getContextStr() + "/" + nameContext + "] url: " + lookup.url, WMSLoggerIDs.CAT_application, WMSLoggerIDs.EVT_comment);
return StringUtils.isEmpty(lookup.url) ? "" : lookup.url;
}
private boolean isStreamUrl(String name)
{
return name.matches("^(rtmp|wowz)[ste]*://.+$");
}
private String getStreamExt(String streamName)
{
String streamExt = MediaStream.BASE_STREAM_EXT;
if (streamName != null)
{
if (streamName.toLowerCase().endsWith(".smil") || streamName.toLowerCase().endsWith(".smi"))
streamExt = MediaStream.SMIL_STREAM_EXT;
String[] streamDecode = ModuleUtils.decodeStreamExtension(streamName, streamExt);
streamExt = streamDecode[1];
}
return streamExt;
}
private boolean isMediaList(String streamName)
{
String streamExt = getStreamExt(streamName);
return appInstance.getMediaReaderContentType(streamExt) == IMediaReader.CONTENTTYPE_MEDIALIST;
}
private boolean checkMediaListAvailability(IApplicationInstance appInstance, String streamName, IHTTPStreamerSession httpSession)
{
boolean available = false;
String streamExt = getStreamExt(streamName);
String[] streamDecode = ModuleUtils.decodeStreamExtension(streamName, streamExt);
streamName = streamDecode[0];
streamExt = streamDecode[1];
MediaList mediaList = MediaListUtils.parseMediaList(appInstance, streamName, streamExt, httpSession);
if (mediaList != null)
{
MediaListSegment segment = mediaList.getFirstSegment();
if (segment != null)
{
List<MediaListRendition> renditions = segment.getRenditions();
if (!renditions.isEmpty())
{
int renditionCount = 0;
int availableCount = 0;
for (MediaListRendition rendition : renditions)
{
if (rendition.getType() == IVHost.CONTENTTYPE_AUDIO || rendition.getType() == IVHost.CONTENTTYPE_VIDEO)
{
renditionCount++;
String renditionName = rendition.getName();