[u/mrichter/AliRoot.git] / HLT / BASE / AliHLTHOMERProxyHandler.cxx

//-*- Mode: C++ -*-
// $Id: AliHLTHOMERProxyHandler.cxx  $
//**************************************************************************
//* This file is property of and copyright by the ALICE HLT Project        * 
//* ALICE Experiment at CERN, All rights reserved.                         *
//*                                                                        *
//* Primary Authors: Jochen Thaeder <thaeder@kip.uni-heidelberg.de>        *
//*                  for The ALICE HLT Project.                            *
//*                                                                        *
//* Permission to use, copy, modify and distribute this software and its   *
//* documentation strictly for non-commercial purposes is hereby granted   *
//* without fee, provided that the above copyright notice appears in all   *
//* copies and that both the copyright notice and this permission notice   *
//* appear in the supporting documentation. The authors make no claims     *
//* about the suitability of this software for any purpose. It is          *
//* provided "as is" without express or implied warranty.                  *
//**************************************************************************

/** @file   AliHLTHOMERProxyHandler.cxx
    @author Jochen Thaeder
    @date
    @brief  HOMER proxy handler for HomerManger
*/

// see header file for class documentation
// or
// refer to README to build package
// or
// visit http://web.ift.uib.no/~kjeks/doc/alice-hlt

#if __GNUC__>= 3
   using namespace std;
#endif

#include "TDOMParser.h"
#include "TSocket.h"
#include "TSystem.h"
// -- -- -- -- -- -- -- 
#include "AliHLTHOMERProxyHandler.h"
// -- -- -- -- -- -- -- 
#include "AliLog.h"

ClassImp(AliHLTHOMERProxyHandler)

/*
 * ---------------------------------------------------------------------------------
 *                            Constructor / Destructor
 * ---------------------------------------------------------------------------------
 */

//##################################################################################
AliHLTHOMERProxyHandler::AliHLTHOMERProxyHandler() :
  fRealm(kHLT),
  fXmlRpcResponse(""),
  fSourceList(NULL) {
  // see header file for class documentation
  // or
  // refer to README to build package
  // or
  // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
}

//##################################################################################
AliHLTHOMERProxyHandler::~AliHLTHOMERProxyHandler() {
  // see header file for class documentation

}

//##################################################################################
Int_t AliHLTHOMERProxyHandler::Initialize() {
  // see header file for class documentation

  Int_t iResult = 0 ;

  IdentifyRealm();

  return iResult;
}

/*
 * ---------------------------------------------------------------------------------
 *                             Source List - public
 * ---------------------------------------------------------------------------------
 */

//##################################################################################
Int_t AliHLTHOMERProxyHandler::FillSourceList(TList *srcList) {
  // see header file for class documentation

  Int_t iResult = 0;

  fSourceList = srcList;

  iResult = RequestXmlRpcResponse();

  if (!iResult)
    iResult = ProcessXmlRpcResponse();

  if (iResult < 0) {
    AliError(Form("Filling SourceList failed."));
  }

  return iResult;
}

/*
 * ---------------------------------------------------------------------------------
 *                        Realms - private
 * ---------------------------------------------------------------------------------
 */

//##################################################################################
const Char_t *AliHLTHOMERProxyHandler::fgkHOMERProxyNode[] = { 
  "portal-dcs0.internal", 
  "alihlt-dcs0.cern.ch",
  "alihlt-vobox0.cern.ch",
  "alihlt-gw0.kip.uni-heidelberg.de",
  "portal-dcs1.internal", 
  "alihlt-dcs1.cern.ch",
  "alihlt-vobox1.cern.ch",
  "alihlt-gw1.kip.uni-heidelberg.de"
};

//##################################################################################
void AliHLTHOMERProxyHandler::IdentifyRealm() {
  // see header file for class documentation

  TString hostIP(gSystem->GetHostByName(gSystem->HostName()).GetHostAddress());

  if ( hostIP.Contains("10.162.") )
    fRealm = kHLT;
  else if ( hostIP.Contains("10.160.") || hostIP.Contains("10.161.") )
    fRealm = kACR;
  else if ( hostIP.Contains("129.206.") )
    fRealm = kKIP;
  else 
    fRealm = kGPN;
  
  return;
}

/*
 * ---------------------------------------------------------------------------------
 *                        Proxy Communication - private
 * ---------------------------------------------------------------------------------
 */

//##################################################################################
Int_t AliHLTHOMERProxyHandler::RequestXmlRpcResponse() {
  // see header file for class documentation

  Int_t iResult = 0;

  // -- open socket
  // ----------------

  Int_t proxyPort = 19999;

  TSocket *socket = new TSocket(fgkHOMERProxyNode[fRealm], proxyPort);
  if ( ! socket->IsValid() ) {
    AliWarning(Form("Failed to create socket to %s:%d,",fgkHOMERProxyNode[fRealm], proxyPort));
    AliWarning(Form("trying %s:%d now.", fgkHOMERProxyNode[fRealm+kHOMERRealmsMax],proxyPort));

    socket = new TSocket(fgkHOMERProxyNode[fRealm+kHOMERRealmsMax], proxyPort);
    if ( ! socket->IsValid() ) {
      AliError(Form("Failed to create socket to %s:%d and %s:%d.",
		    fgkHOMERProxyNode[fRealm], proxyPort,
		    fgkHOMERProxyNode[fRealm+kHOMERRealmsMax],proxyPort));

      fRealm = -1;
      return -1;
    }
    else
      fRealm = fRealm+kHOMERRealmsMax;
  }

  // -- send request
  // -----------------

  Char_t reqMsg[] = "PUT / HTTP/1.1\r\n\
User-Agent: curl/7.18.0 (x86_64-pc-linux-gnu) libcurl/7.18.0 OpenSSL/0.9.8g zlib/1.2.3.3 libidn/1.1\r\n\
Host: localhost:10000\r\n\
Accept: */*\r\n\
Content-type: text/xml\r\n\
Content-Length: 68\r\n\
\r\n<methodCall><methodName>getTcpDumpServices</methodName></methodCall>\r\n";

  iResult = socket->SendRaw( reqMsg, strlen(reqMsg) );
  if ( iResult < 1 || 
       iResult !=  static_cast<Int_t>(strlen(reqMsg))) {
    AliError(Form("Error sending! -- send length %d  -- msg length %d.", iResult, static_cast<Int_t>(strlen(reqMsg)) ));
    socket->Close();
    return iResult;
  }
  
  // -- receive answer
  // -------------------

  const Int_t bufferSize = 1024;
  Char_t buffer[bufferSize];

  Bool_t isXmlRpc = kFALSE;

  fXmlRpcResponse = "";

  // -- loop for getting full xmlRPC response
  while(1) {

    Int_t bufferLength = 0;
    
    // -- loop for reading until end of line
    while (1) {

      iResult = socket->RecvRaw(&buffer[bufferLength], 1);
      if ( iResult < 0) {
	AliError(Form("Error reading form socket."));
	socket->Close();
	return iResult;
      }
            
      // -- Checking for  end of line
      if ( buffer[bufferLength] == 10 ) {
	buffer[bufferLength] = 0;
	break;
      }
      
      ++bufferLength;
    }

    TString bufferString(buffer);

    // -- Checking for start of XML response
    if ( bufferString.BeginsWith("<?xml") )
      isXmlRpc = kTRUE;

    // -- Append the xml response
    if (isXmlRpc) {
      fXmlRpcResponse.Append(bufferString);
    }

    // -- Checking for end of XML response
    if( ! bufferString.CompareTo("</methodResponse>") ) 
      break;
  }
  
  // -- close socket
  socket->Close();

  return 0;
}

//##################################################################################
Int_t AliHLTHOMERProxyHandler::ProcessXmlRpcResponse() {
  // see header file for class documentation

  Int_t iResult = 0;

  // -- Parse XML RPC Response
  // ---------------------------

  TDOMParser xmlParser;
  xmlParser.SetValidate(kFALSE);

  AliInfo(Form("XMLResponse: %s",fXmlRpcResponse.Data()));

  iResult = xmlParser.ParseBuffer(fXmlRpcResponse.Data(), fXmlRpcResponse.Length());
  if ( iResult < 0 ) {
    AliError(Form("Parsing buffer with error: %s", 
		  xmlParser.GetParseCodeMessage(xmlParser.GetParseCode()) ));
    

    return iResult;
  }

  TXMLNode * node = xmlParser.GetXMLDocument()->GetRootNode()->
    GetChildren()->GetChildren()->GetChildren()->GetChildren();
  
  if ( strcmp( node->GetNodeName(), "string" ) ) {
    AliError(Form("No node 'string' in XmlRpcResponse."));
    return -1;
  }

  // -- Parse Content
  // ------------------

  // -- Get Content
  TString xmlContent(node->GetText() );

  AliInfo(Form("XMLContent: %s",xmlContent.Data()));

  iResult = xmlParser.ParseBuffer(xmlContent.Data(), xmlContent.Length());
  if ( iResult < 0 ) {
    AliError(Form("Parsing buffer with error: %s", 
		  xmlParser.GetParseCodeMessage(xmlParser.GetParseCode()) ));

    return iResult;
  }
  

  if ( !xmlParser.GetXMLDocument()->GetRootNode()->HasChildren() ) {
    AliWarning(Form("No Services active."));
    return 1;
  }

  // -- Loop over all service nodes
  TXMLNode* serviceNode = xmlParser.GetXMLDocument()->GetRootNode()->GetChildren();
  TXMLNode* prevServiceNode = NULL;
  
  do {
    prevServiceNode = serviceNode;

    // -- Add service to list
    iResult = AddService( serviceNode->GetChildren() );
    if ( iResult > 0 ) {
      AliWarning(Form("Incomplete Service not added."));
      iResult = 0;
    }
  } while ( ( serviceNode = prevServiceNode->GetNextNode() ) && !iResult );


  return iResult;
}

/*
 * ---------------------------------------------------------------------------------
 *                            Source Resolving - private
 * ---------------------------------------------------------------------------------
 */

//##################################################################################
Int_t AliHLTHOMERProxyHandler::AddService(TXMLNode *innerNode) {
  // see header file for class documentation

  Int_t iResult = 0;

  AliInfo(Form(">> New service"));    

  // -- Loop over all service properties and 
  //    read them from the service tag
  // -----------------------------------------

  TString hostname          = "";
  Int_t   port              = 0;
  TString dataType          = "";
  TString dataOrigin        = "";
  TString dataSpecification = "";

  TXMLNode* prevInnerNode = NULL;

  do {
    prevInnerNode = innerNode;
    
    if ( ! strcmp(innerNode->GetNodeName(), "text" ) )
      continue;
    
    AliInfo(Form(" %s ++ %s", innerNode->GetNodeName(), innerNode->GetText() ));
    
    // -- hostname
    if ( ! strcmp( innerNode->GetNodeName(), "address") )
      hostname = innerNode->GetText();
    else if ( ! strcmp( innerNode->GetNodeName(), "port") ) {
      TString portS(innerNode->GetText());
      if ( portS.IsDigit() )
	port = portS.Atoi();
      else {
	AliError(Form("Port %s is not a digit.", portS.Data()));
	iResult = -1;
      }
    }
    else if ( ! strcmp( innerNode->GetNodeName(), "dataorigin") )
      dataOrigin = innerNode->GetText();
    else if ( ! strcmp( innerNode->GetNodeName(), "datatype") )
      dataType = innerNode->GetText();
    else if ( ! strcmp( innerNode->GetNodeName(), "dataspecification") )
      dataSpecification = innerNode->GetText();    
  
  } while ( ( innerNode = prevInnerNode->GetNextNode() ) && !iResult );

  // -- Check the service properties
  // ---------------------------------

  // -- Change hostame from service with proxy, if outside HLT
  if ( fRealm != kHLT || fRealm != kHLT+kHOMERRealmsMax )
    hostname = fgkHOMERProxyNode[fRealm];

  // -- Check for completeness of the source properties
  if ( hostname.IsNull() || !port || dataOrigin.IsNull() ||
       dataType.IsNull() || dataSpecification.IsNull() ) {
    AliWarning(Form("Service provides not all values:\n\thostname\t\t %s\n\tport\t\t\t %d\n\tdataorigin\t\t %s\n\tdatatype\t\t %s\n\tdataspecification\t %s", 
		  hostname.Data(), port, dataOrigin.Data(), dataType.Data(), dataSpecification.Data()));

    return 1;
  }

  // -- Create new source
  // ----------------------

  AliHLTHOMERSourceDesc * source = new AliHLTHOMERSourceDesc();
  source->SetService( hostname, port, dataOrigin, dataType, dataSpecification );

  fSourceList->Add( source );

  AliInfo(Form( "New Source added : %s", source->GetSourceName().Data()));
  
  return iResult;
}
Commit	Line	Data
06272c83	1	//-- Mode: C++ --
	2	// $Id: AliHLTHOMERProxyHandler.cxx $
	3	//**************************************************************************
	4	//* This file is property of and copyright by the ALICE HLT Project *
	5	//* ALICE Experiment at CERN, All rights reserved. *
	6	//* *
	7	//* Primary Authors: Jochen Thaeder <thaeder@kip.uni-heidelberg.de> *
	8	//* for The ALICE HLT Project. *
	9	//* *
	10	//* Permission to use, copy, modify and distribute this software and its *
	11	//* documentation strictly for non-commercial purposes is hereby granted *
	12	//* without fee, provided that the above copyright notice appears in all *
	13	//* copies and that both the copyright notice and this permission notice *
	14	//* appear in the supporting documentation. The authors make no claims *
	15	//* about the suitability of this software for any purpose. It is *
	16	//* provided "as is" without express or implied warranty. *
	17	//**************************************************************************
	18
	19	/** @file AliHLTHOMERProxyHandler.cxx
	20	@author Jochen Thaeder
	21	@date
	22	@brief HOMER proxy handler for HomerManger
	23	*/
	24
	25	// see header file for class documentation
	26	// or
	27	// refer to README to build package
	28	// or
	29	// visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
	30
	31	#if __GNUC__>= 3
	32	using namespace std;
	33	#endif
	34
	35	#include "TDOMParser.h"
	36	#include "TSocket.h"
	37	#include "TSystem.h"
	38	// -- -- -- -- -- -- --
	39	#include "AliHLTHOMERProxyHandler.h"
e728e5ba	40	// -- -- -- -- -- -- --
e728e5ba	41	#include "AliLog.h"
06272c83	42
	43	ClassImp(AliHLTHOMERProxyHandler)
	44
	45	/*
	46	* ---------------------------------------------------------------------------------
	47	* Constructor / Destructor
	48	* ---------------------------------------------------------------------------------
	49	*/
	50
	51	//##################################################################################
	52	AliHLTHOMERProxyHandler::AliHLTHOMERProxyHandler() :
	53	fRealm(kHLT),
	54	fXmlRpcResponse(""),
	55	fSourceList(NULL) {
	56	// see header file for class documentation
	57	// or
	58	// refer to README to build package
	59	// or
	60	// visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
	61	}
	62
	63	//##################################################################################
	64	AliHLTHOMERProxyHandler::~AliHLTHOMERProxyHandler() {
	65	// see header file for class documentation
	66
	67	}
	68
	69	//##################################################################################
	70	Int_t AliHLTHOMERProxyHandler::Initialize() {
	71	// see header file for class documentation
	72
	73	Int_t iResult = 0 ;
	74
	75	IdentifyRealm();
	76
	77	return iResult;
	78	}
	79
	80	/*
	81	* ---------------------------------------------------------------------------------
	82	* Source List - public
	83	* ---------------------------------------------------------------------------------
	84	*/
	85
	86	//##################################################################################
	87	Int_t AliHLTHOMERProxyHandler::FillSourceList(TList *srcList) {
	88	// see header file for class documentation
	89
	90	Int_t iResult = 0;
	91
	92	fSourceList = srcList;
	93
	94	iResult = RequestXmlRpcResponse();
	95
	96	if (!iResult)
	97	iResult = ProcessXmlRpcResponse();
	98
ae17e63c	99	if (iResult < 0) {
e728e5ba	100	AliError(Form("Filling SourceList failed."));
ae17e63c	101	}
06272c83	102
	103	return iResult;
	104	}
	105
	106	/*
	107	* ---------------------------------------------------------------------------------
	108	* Realms - private
	109	* ---------------------------------------------------------------------------------
	110	*/
	111
	112	//##################################################################################
	113	const Char_t *AliHLTHOMERProxyHandler::fgkHOMERProxyNode[] = {
	114	"portal-dcs0.internal",
	115	"alihlt-dcs0.cern.ch",
	116	"alihlt-vobox0.cern.ch",
	117	"alihlt-gw0.kip.uni-heidelberg.de",
	118	"portal-dcs1.internal",
	119	"alihlt-dcs1.cern.ch",
	120	"alihlt-vobox1.cern.ch",
	121	"alihlt-gw1.kip.uni-heidelberg.de"
	122	};
	123
	124	//##################################################################################
	125	void AliHLTHOMERProxyHandler::IdentifyRealm() {
	126	// see header file for class documentation
	127
	128	TString hostIP(gSystem->GetHostByName(gSystem->HostName()).GetHostAddress());
	129
	130	if ( hostIP.Contains("10.162.") )
	131	fRealm = kHLT;
	132	else if ( hostIP.Contains("10.160.") \|\| hostIP.Contains("10.161.") )
	133	fRealm = kACR;
	134	else if ( hostIP.Contains("129.206.") )
	135	fRealm = kKIP;
	136	else
	137	fRealm = kGPN;
	138
	139	return;
	140	}
	141
	142	/*
	143	* ---------------------------------------------------------------------------------
	144	* Proxy Communication - private
	145	* ---------------------------------------------------------------------------------
	146	*/
	147
	148	//##################################################################################
	149	Int_t AliHLTHOMERProxyHandler::RequestXmlRpcResponse() {
	150	// see header file for class documentation
	151
	152	Int_t iResult = 0;
	153
	154	// -- open socket
	155	// ----------------
	156
	157	Int_t proxyPort = 19999;
	158
	159	TSocket *socket = new TSocket(fgkHOMERProxyNode[fRealm], proxyPort);
	160	if ( ! socket->IsValid() ) {
e728e5ba	161	AliWarning(Form("Failed to create socket to %s:%d,",fgkHOMERProxyNode[fRealm], proxyPort));
e728e5ba	162	AliWarning(Form("trying %s:%d now.", fgkHOMERProxyNode[fRealm+kHOMERRealmsMax],proxyPort));
06272c83	163
	164	socket = new TSocket(fgkHOMERProxyNode[fRealm+kHOMERRealmsMax], proxyPort);
	165	if ( ! socket->IsValid() ) {
e728e5ba	166	AliError(Form("Failed to create socket to %s:%d and %s:%d.",
	167	fgkHOMERProxyNode[fRealm], proxyPort,
	168	fgkHOMERProxyNode[fRealm+kHOMERRealmsMax],proxyPort));
	169
06272c83	170	fRealm = -1;
	171	return -1;
	172	}
	173	else
	174	fRealm = fRealm+kHOMERRealmsMax;
	175	}
	176
	177	// -- send request
	178	// -----------------
	179
	180	Char_t reqMsg[] = "PUT / HTTP/1.1\r\n\
	181	User-Agent: curl/7.18.0 (x86_64-pc-linux-gnu) libcurl/7.18.0 OpenSSL/0.9.8g zlib/1.2.3.3 libidn/1.1\r\n\
	182	Host: localhost:10000\r\n\
	183	Accept: /\r\n\
	184	Content-type: text/xml\r\n\
	185	Content-Length: 68\r\n\
	186	\r\n<methodCall><methodName>getTcpDumpServices</methodName></methodCall>\r\n";
	187
	188	iResult = socket->SendRaw( reqMsg, strlen(reqMsg) );
	189	if ( iResult < 1 \|\|
	190	iResult != static_cast<Int_t>(strlen(reqMsg))) {
e728e5ba	191	AliError(Form("Error sending! -- send length %d -- msg length %d.", iResult, static_cast<Int_t>(strlen(reqMsg)) ));
06272c83	192	socket->Close();
	193	return iResult;
	194	}
	195
	196	// -- receive answer
	197	// -------------------
	198
	199	const Int_t bufferSize = 1024;
	200	Char_t buffer[bufferSize];
	201
	202	Bool_t isXmlRpc = kFALSE;
	203
	204	fXmlRpcResponse = "";
	205
	206	// -- loop for getting full xmlRPC response
	207	while(1) {
	208
	209	Int_t bufferLength = 0;
	210
	211	// -- loop for reading until end of line
	212	while (1) {
	213
	214	iResult = socket->RecvRaw(&buffer[bufferLength], 1);
	215	if ( iResult < 0) {
e728e5ba	216	AliError(Form("Error reading form socket."));
06272c83	217	socket->Close();
	218	return iResult;
	219	}
	220
	221	// -- Checking for end of line
	222	if ( buffer[bufferLength] == 10 ) {
	223	buffer[bufferLength] = 0;
	224	break;
	225	}
	226
	227	++bufferLength;
	228	}
	229
	230	TString bufferString(buffer);
	231
	232	// -- Checking for start of XML response
	233	if ( bufferString.BeginsWith("<?xml") )
	234	isXmlRpc = kTRUE;
	235
	236	// -- Append the xml response
	237	if (isXmlRpc) {
	238	fXmlRpcResponse.Append(bufferString);
	239	}
	240
	241	// -- Checking for end of XML response
	242	if( ! bufferString.CompareTo("</methodResponse>") )
	243	break;
	244	}
	245
	246	// -- close socket
	247	socket->Close();
	248
	249	return 0;
	250	}
	251
	252	//##################################################################################
	253	Int_t AliHLTHOMERProxyHandler::ProcessXmlRpcResponse() {
	254	// see header file for class documentation
	255
	256	Int_t iResult = 0;
	257
	258	// -- Parse XML RPC Response
	259	// ---------------------------
	260
	261	TDOMParser xmlParser;
	262	xmlParser.SetValidate(kFALSE);
	263
e728e5ba	264	AliInfo(Form("XMLResponse: %s",fXmlRpcResponse.Data()));
06272c83	265
	266	iResult = xmlParser.ParseBuffer(fXmlRpcResponse.Data(), fXmlRpcResponse.Length());
	267	if ( iResult < 0 ) {
e728e5ba	268	AliError(Form("Parsing buffer with error: %s",
	269	xmlParser.GetParseCodeMessage(xmlParser.GetParseCode()) ));
	270
	271
06272c83	272	return iResult;
	273	}
	274
	275	TXMLNode * node = xmlParser.GetXMLDocument()->GetRootNode()->
	276	GetChildren()->GetChildren()->GetChildren()->GetChildren();
	277
	278	if ( strcmp( node->GetNodeName(), "string" ) ) {
e728e5ba	279	AliError(Form("No node 'string' in XmlRpcResponse."));
06272c83	280	return -1;
	281	}
	282
	283	// -- Parse Content
	284	// ------------------
	285
	286	// -- Get Content
	287	TString xmlContent(node->GetText() );
	288
e728e5ba	289	AliInfo(Form("XMLContent: %s",xmlContent.Data()));
06272c83	290
	291	iResult = xmlParser.ParseBuffer(xmlContent.Data(), xmlContent.Length());
	292	if ( iResult < 0 ) {
e728e5ba	293	AliError(Form("Parsing buffer with error: %s",
	294	xmlParser.GetParseCodeMessage(xmlParser.GetParseCode()) ));
	295
06272c83	296	return iResult;
	297	}
	298
	299
	300	if ( !xmlParser.GetXMLDocument()->GetRootNode()->HasChildren() ) {
e728e5ba	301	AliWarning(Form("No Services active."));
ae17e63c	302	return 1;
06272c83	303	}
	304
	305	// -- Loop over all service nodes
	306	TXMLNode* serviceNode = xmlParser.GetXMLDocument()->GetRootNode()->GetChildren();
	307	TXMLNode* prevServiceNode = NULL;
	308
	309	do {
	310	prevServiceNode = serviceNode;
	311
	312	// -- Add service to list
	313	iResult = AddService( serviceNode->GetChildren() );
74682ab7	314	if ( iResult > 0 ) {
	315	AliWarning(Form("Incomplete Service not added."));
	316	iResult = 0;
	317	}
06272c83	318	} while ( ( serviceNode = prevServiceNode->GetNextNode() ) && !iResult );
06272c83	319
74682ab7	320
74682ab7	321
06272c83	322	return iResult;
	323	}
	324
	325	/*
	326	* ---------------------------------------------------------------------------------
	327	* Source Resolving - private
	328	* ---------------------------------------------------------------------------------
	329	*/
	330
	331	//##################################################################################
	332	Int_t AliHLTHOMERProxyHandler::AddService(TXMLNode *innerNode) {
	333	// see header file for class documentation
	334
	335	Int_t iResult = 0;
	336
e728e5ba	337	AliInfo(Form(">> New service"));
06272c83	338
	339	// -- Loop over all service properties and
	340	// read them from the service tag
	341	// -----------------------------------------
	342
	343	TString hostname = "";
	344	Int_t port = 0;
	345	TString dataType = "";
	346	TString dataOrigin = "";
	347	TString dataSpecification = "";
	348
	349	TXMLNode* prevInnerNode = NULL;
	350
	351	do {
	352	prevInnerNode = innerNode;
	353
	354	if ( ! strcmp(innerNode->GetNodeName(), "text" ) )
	355	continue;
	356
e728e5ba	357	AliInfo(Form(" %s ++ %s", innerNode->GetNodeName(), innerNode->GetText() ));
06272c83	358
	359	// -- hostname
	360	if ( ! strcmp( innerNode->GetNodeName(), "address") )
	361	hostname = innerNode->GetText();
	362	else if ( ! strcmp( innerNode->GetNodeName(), "port") ) {
	363	TString portS(innerNode->GetText());
	364	if ( portS.IsDigit() )
	365	port = portS.Atoi();
	366	else {
e728e5ba	367	AliError(Form("Port %s is not a digit.", portS.Data()));
06272c83	368	iResult = -1;
	369	}
	370	}
	371	else if ( ! strcmp( innerNode->GetNodeName(), "dataorigin") )
	372	dataOrigin = innerNode->GetText();
	373	else if ( ! strcmp( innerNode->GetNodeName(), "datatype") )
	374	dataType = innerNode->GetText();
	375	else if ( ! strcmp( innerNode->GetNodeName(), "dataspecification") )
	376	dataSpecification = innerNode->GetText();
	377
	378	} while ( ( innerNode = prevInnerNode->GetNextNode() ) && !iResult );
	379
	380	// -- Check the service properties
	381	// ---------------------------------
	382
	383	// -- Change hostame from service with proxy, if outside HLT
	384	if ( fRealm != kHLT \|\| fRealm != kHLT+kHOMERRealmsMax )
	385	hostname = fgkHOMERProxyNode[fRealm];
	386
	387	// -- Check for completeness of the source properties
	388	if ( hostname.IsNull() \|\| !port \|\| dataOrigin.IsNull() \|\|
e728e5ba	389	dataType.IsNull() \|\| dataSpecification.IsNull() ) {
74682ab7	390	AliWarning(Form("Service provides not all values:\n\thostname\t\t %s\n\tport\t\t\t %d\n\tdataorigin\t\t %s\n\tdatatype\t\t %s\n\tdataspecification\t %s",
e728e5ba	391	hostname.Data(), port, dataOrigin.Data(), dataType.Data(), dataSpecification.Data()));
e728e5ba	392
74682ab7	393	return 1;
06272c83	394	}
	395
	396	// -- Create new source
	397	// ----------------------
	398
	399	AliHLTHOMERSourceDesc * source = new AliHLTHOMERSourceDesc();
4faff50e	400	source->SetService( hostname, port, dataOrigin, dataType, dataSpecification );
06272c83	401
	402	fSourceList->Add( source );
	403
e728e5ba	404	AliInfo(Form( "New Source added : %s", source->GetSourceName().Data()));
06272c83	405
	406	return iResult;
	407	}
	408
	409