[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"
// -- -- -- -- -- -- -- 

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) {
    HLTError(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",
  "localhost",
  "portal-dcs1.internal", 
  "alihlt-dcs1.cern.ch",
  "alihlt-vobox1.cern.ch",
  "alihlt-gw1.kip.uni-heidelberg.de",
  "localhost"
};

//##################################################################################
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  if ( hostIP.Contains("137.138") 
	     || hostIP.Contains("128.141") 
	     || hostIP.Contains("127.0.") 
	     )
    fRealm = kGPN;
  else {
    fRealm = kLoc;
  }

  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() ) {
    HLTWarning(Form("Failed to create socket to %s:%d,",fgkHOMERProxyNode[fRealm], proxyPort));
    HLTWarning(Form("trying %s:%d now.", fgkHOMERProxyNode[fRealm+kHOMERRealmsMax],proxyPort));

    socket = new TSocket(fgkHOMERProxyNode[fRealm+kHOMERRealmsMax], proxyPort);
    if ( ! socket->IsValid() ) {
      HLTError(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))) {
    HLTError(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) {
	HLTError(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);

  HLTDebug(Form("XMLResponse: %s",fXmlRpcResponse.Data()));
  
  iResult = xmlParser.ParseBuffer(fXmlRpcResponse.Data(), fXmlRpcResponse.Length());
  if ( iResult < 0 ) {
    HLTError(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" ) ) {
    HLTError(Form("No node 'string' in XmlRpcResponse."));
    return -1;
  }

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

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

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

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

    return iResult;
  }
  
  if ( !xmlParser.GetXMLDocument()->GetRootNode()->HasChildren() ) {
    HLTWarning(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 ) {
      HLTWarning(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;

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

  TXMLNode* serviceNode = innerNode;

  // -- 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;

  // -- Retrieve hostname and port
  // -------------------------------

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


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


  // -- Get Data Specifications from blocks
  // ----------------------------------------

  do {
    prevInnerNode = serviceNode;

    if ( strcmp( serviceNode->GetNodeName(), "blocks") )
      continue;
 
    TXMLNode* blocks = serviceNode->GetChildren();

    if ( ! blocks ) {
      HLTError(Form("No blocks present"));
      return 1;
    }
      
    TXMLNode* blockNode = blocks->GetNextNode();
    TXMLNode* prevBlockNode = NULL;

    if ( ! blockNode ) {
      HLTError(Form("No block present in the blocks tag"));
      return 1;
    }
      
    // -- blocks loop 
    
    do {
      prevBlockNode = blockNode;
      
      if ( strcmp( blockNode->GetNodeName(), "block") )
	continue;

      TXMLNode *dataNode = blockNode->GetChildren();
      TXMLNode *prevDataNode = NULL;

      if ( ! dataNode ) {
	HLTError(Form("No data specification tags present in block tag."));
	return 1;
      }
      // -- data spec loop
      
      do {
	prevDataNode = dataNode;

	if ( ! strcmp(dataNode->GetNodeName(), "text" ) )
	  continue;

	HLTInfo(Form(" %s ++ %s", dataNode->GetNodeName(), dataNode->GetText() ));	

	if ( ! strcmp( dataNode->GetNodeName(), "dataorigin") ) {
	  dataOrigin = dataNode->GetText();
	}
	else if ( ! strcmp( dataNode->GetNodeName(), "datatype") ) {
	  dataType = dataNode->GetText();
	}
	else if ( ! strcmp( dataNode->GetNodeName(), "dataspecification") ) {
	  dataSpecification = dataNode->GetText();    
	}
      } while ( ( dataNode = prevDataNode->GetNextNode() ) && !iResult );
      
      // -- data spec loop

      // -- Check the service properties
      // ---------------------------------
      
      // -- Check for completeness of the source properties
      if ( hostname.IsNull() || !port || dataOrigin.IsNull() ||
	   dataType.IsNull() || dataSpecification.IsNull() ) {
	HLTWarning(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 0x%08X", 
			hostname.Data(), port, dataOrigin.Data(), dataType.Data(), dataSpecification.Atoi()));
	
	return 1;
      }

      // -- Create new source
      // ----------------------
      
      AliHLTHOMERSourceDesc * source = new AliHLTHOMERSourceDesc();
      source->SetService( hostname, port, dataOrigin, dataType, dataSpecification );
      
      fSourceList->Add( source );
      
      HLTInfo(Form( "New Source added : %s", source->GetSourceName().Data()));

    } while ( ( blockNode = prevBlockNode->GetNextNode() ) && !iResult );


    // -- blocks loop
    
  } while ( ( serviceNode = prevInnerNode->GetNextNode() ) && !iResult );
  
  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	// -- -- -- -- -- -- --
06272c83	41
	42	ClassImp(AliHLTHOMERProxyHandler)
	43
	44	/*
	45	* ---------------------------------------------------------------------------------
	46	* Constructor / Destructor
	47	* ---------------------------------------------------------------------------------
	48	*/
	49
	50	//##################################################################################
	51	AliHLTHOMERProxyHandler::AliHLTHOMERProxyHandler() :
	52	fRealm(kHLT),
	53	fXmlRpcResponse(""),
	54	fSourceList(NULL) {
	55	// see header file for class documentation
	56	// or
	57	// refer to README to build package
	58	// or
	59	// visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
	60	}
	61
	62	//##################################################################################
	63	AliHLTHOMERProxyHandler::~AliHLTHOMERProxyHandler() {
	64	// see header file for class documentation
	65
	66	}
	67
	68	//##################################################################################
	69	Int_t AliHLTHOMERProxyHandler::Initialize() {
	70	// see header file for class documentation
	71
	72	Int_t iResult = 0 ;
	73
	74	IdentifyRealm();
	75
	76	return iResult;
	77	}
	78
	79	/*
	80	* ---------------------------------------------------------------------------------
	81	* Source List - public
	82	* ---------------------------------------------------------------------------------
	83	*/
	84
	85	//##################################################################################
	86	Int_t AliHLTHOMERProxyHandler::FillSourceList(TList *srcList) {
	87	// see header file for class documentation
	88
	89	Int_t iResult = 0;
	90
	91	fSourceList = srcList;
	92
	93	iResult = RequestXmlRpcResponse();
	94
	95	if (!iResult)
	96	iResult = ProcessXmlRpcResponse();
	97
ae17e63c	98	if (iResult < 0) {
b6bb7ca3	99	HLTError(Form("Filling SourceList failed."));
ae17e63c	100	}
06272c83	101
	102	return iResult;
	103	}
	104
	105	/*
	106	* ---------------------------------------------------------------------------------
	107	* Realms - private
	108	* ---------------------------------------------------------------------------------
	109	*/
	110
	111	//##################################################################################
	112	const Char_t *AliHLTHOMERProxyHandler::fgkHOMERProxyNode[] = {
	113	"portal-dcs0.internal",
	114	"alihlt-dcs0.cern.ch",
	115	"alihlt-vobox0.cern.ch",
	116	"alihlt-gw0.kip.uni-heidelberg.de",
af7671cd	117	"localhost",
06272c83	118	"portal-dcs1.internal",
	119	"alihlt-dcs1.cern.ch",
	120	"alihlt-vobox1.cern.ch",
cfa641b1	121	"alihlt-gw1.kip.uni-heidelberg.de",
cfa641b1	122	"localhost"
06272c83	123	};
	124
	125	//##################################################################################
	126	void AliHLTHOMERProxyHandler::IdentifyRealm() {
	127	// see header file for class documentation
	128
	129	TString hostIP(gSystem->GetHostByName(gSystem->HostName()).GetHostAddress());
	130
	131	if ( hostIP.Contains("10.162.") )
	132	fRealm = kHLT;
	133	else if ( hostIP.Contains("10.160.") \|\| hostIP.Contains("10.161.") )
	134	fRealm = kACR;
	135	else if ( hostIP.Contains("129.206.") )
	136	fRealm = kKIP;
af7671cd	137	else if ( hostIP.Contains("137.138")
	138	\|\| hostIP.Contains("128.141")
	139	\|\| hostIP.Contains("127.0.")
cfa641b1	140	)
06272c83	141	fRealm = kGPN;
cfa641b1	142	else {
	143	fRealm = kLoc;
	144	}
	145
06272c83	146	return;
	147	}
	148
	149	/*
	150	* ---------------------------------------------------------------------------------
	151	* Proxy Communication - private
	152	* ---------------------------------------------------------------------------------
	153	*/
	154
	155	//##################################################################################
	156	Int_t AliHLTHOMERProxyHandler::RequestXmlRpcResponse() {
	157	// see header file for class documentation
	158
	159	Int_t iResult = 0;
	160
	161	// -- open socket
	162	// ----------------
	163
	164	Int_t proxyPort = 19999;
	165
	166	TSocket *socket = new TSocket(fgkHOMERProxyNode[fRealm], proxyPort);
	167	if ( ! socket->IsValid() ) {
b6bb7ca3	168	HLTWarning(Form("Failed to create socket to %s:%d,",fgkHOMERProxyNode[fRealm], proxyPort));
b6bb7ca3	169	HLTWarning(Form("trying %s:%d now.", fgkHOMERProxyNode[fRealm+kHOMERRealmsMax],proxyPort));
06272c83	170
	171	socket = new TSocket(fgkHOMERProxyNode[fRealm+kHOMERRealmsMax], proxyPort);
	172	if ( ! socket->IsValid() ) {
b6bb7ca3	173	HLTError(Form("Failed to create socket to %s:%d and %s:%d.",
e728e5ba	174	fgkHOMERProxyNode[fRealm], proxyPort,
	175	fgkHOMERProxyNode[fRealm+kHOMERRealmsMax],proxyPort));
	176
06272c83	177	fRealm = -1;
	178	return -1;
	179	}
	180	else
	181	fRealm = fRealm+kHOMERRealmsMax;
	182	}
	183
	184	// -- send request
	185	// -----------------
	186
	187	Char_t reqMsg[] = "PUT / HTTP/1.1\r\n\
	188	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\
	189	Host: localhost:10000\r\n\
	190	Accept: /\r\n\
	191	Content-type: text/xml\r\n\
	192	Content-Length: 68\r\n\
	193	\r\n<methodCall><methodName>getTcpDumpServices</methodName></methodCall>\r\n";
	194
	195	iResult = socket->SendRaw( reqMsg, strlen(reqMsg) );
	196	if ( iResult < 1 \|\|
	197	iResult != static_cast<Int_t>(strlen(reqMsg))) {
b6bb7ca3	198	HLTError(Form("Error sending! -- send length %d -- msg length %d.", iResult, static_cast<Int_t>(strlen(reqMsg)) ));
06272c83	199	socket->Close();
	200	return iResult;
	201	}
	202
	203	// -- receive answer
	204	// -------------------
	205
	206	const Int_t bufferSize = 1024;
	207	Char_t buffer[bufferSize];
	208
	209	Bool_t isXmlRpc = kFALSE;
	210
	211	fXmlRpcResponse = "";
	212
	213	// -- loop for getting full xmlRPC response
	214	while(1) {
	215
	216	Int_t bufferLength = 0;
	217
	218	// -- loop for reading until end of line
	219	while (1) {
	220
	221	iResult = socket->RecvRaw(&buffer[bufferLength], 1);
	222	if ( iResult < 0) {
b6bb7ca3	223	HLTError(Form("Error reading form socket."));
06272c83	224	socket->Close();
	225	return iResult;
	226	}
	227
	228	// -- Checking for end of line
	229	if ( buffer[bufferLength] == 10 ) {
	230	buffer[bufferLength] = 0;
	231	break;
	232	}
	233
	234	++bufferLength;
	235	}
	236
	237	TString bufferString(buffer);
	238
	239	// -- Checking for start of XML response
	240	if ( bufferString.BeginsWith("<?xml") )
	241	isXmlRpc = kTRUE;
	242
	243	// -- Append the xml response
	244	if (isXmlRpc) {
	245	fXmlRpcResponse.Append(bufferString);
	246	}
	247
	248	// -- Checking for end of XML response
	249	if( ! bufferString.CompareTo("</methodResponse>") )
	250	break;
	251	}
	252
	253	// -- close socket
	254	socket->Close();
	255
	256	return 0;
	257	}
	258
	259	//##################################################################################
	260	Int_t AliHLTHOMERProxyHandler::ProcessXmlRpcResponse() {
	261	// see header file for class documentation
	262
	263	Int_t iResult = 0;
	264
	265	// -- Parse XML RPC Response
	266	// ---------------------------
	267
	268	TDOMParser xmlParser;
	269	xmlParser.SetValidate(kFALSE);
	270
a82a31af	271	HLTDebug(Form("XMLResponse: %s",fXmlRpcResponse.Data()));
a82a31af	272
06272c83	273	iResult = xmlParser.ParseBuffer(fXmlRpcResponse.Data(), fXmlRpcResponse.Length());
06272c83	274	if ( iResult < 0 ) {
b6bb7ca3	275	HLTError(Form("Parsing buffer with error: %s",
e728e5ba	276	xmlParser.GetParseCodeMessage(xmlParser.GetParseCode()) ));
	277
	278
06272c83	279	return iResult;
	280	}
	281
	282	TXMLNode * node = xmlParser.GetXMLDocument()->GetRootNode()->
	283	GetChildren()->GetChildren()->GetChildren()->GetChildren();
	284
	285	if ( strcmp( node->GetNodeName(), "string" ) ) {
b6bb7ca3	286	HLTError(Form("No node 'string' in XmlRpcResponse."));
06272c83	287	return -1;
	288	}
	289
	290	// -- Parse Content
	291	// ------------------
	292
	293	// -- Get Content
	294	TString xmlContent(node->GetText() );
	295
9e78371d	296	HLTDebug(Form("XMLContent: %s",xmlContent.Data()));
06272c83	297
	298	iResult = xmlParser.ParseBuffer(xmlContent.Data(), xmlContent.Length());
	299	if ( iResult < 0 ) {
b6bb7ca3	300	HLTError(Form("Parsing buffer with error: %s",
e728e5ba	301	xmlParser.GetParseCodeMessage(xmlParser.GetParseCode()) ));
e728e5ba	302
06272c83	303	return iResult;
	304	}
	305
06272c83	306	if ( !xmlParser.GetXMLDocument()->GetRootNode()->HasChildren() ) {
b6bb7ca3	307	HLTWarning(Form("No Services active."));
ae17e63c	308	return 1;
06272c83	309	}
	310
	311	// -- Loop over all service nodes
	312	TXMLNode* serviceNode = xmlParser.GetXMLDocument()->GetRootNode()->GetChildren();
	313	TXMLNode* prevServiceNode = NULL;
	314
	315	do {
	316	prevServiceNode = serviceNode;
	317
	318	// -- Add service to list
	319	iResult = AddService( serviceNode->GetChildren() );
74682ab7	320	if ( iResult > 0 ) {
b6bb7ca3	321	HLTWarning(Form("Incomplete Service not added."));
74682ab7	322	iResult = 0;
74682ab7	323	}
06272c83	324	} while ( ( serviceNode = prevServiceNode->GetNextNode() ) && !iResult );
06272c83	325
74682ab7	326
74682ab7	327
06272c83	328	return iResult;
	329	}
	330
	331	/*
	332	* ---------------------------------------------------------------------------------
	333	* Source Resolving - private
	334	* ---------------------------------------------------------------------------------
	335	*/
	336
	337	//##################################################################################
	338	Int_t AliHLTHOMERProxyHandler::AddService(TXMLNode *innerNode) {
	339	// see header file for class documentation
	340
	341	Int_t iResult = 0;
	342
b6bb7ca3	343	HLTInfo(Form(">> New service"));
06272c83	344
69f2a104	345	TXMLNode* serviceNode = innerNode;
69f2a104	346
06272c83	347	// -- Loop over all service properties and
	348	// read them from the service tag
	349	// -----------------------------------------
	350
	351	TString hostname = "";
	352	Int_t port = 0;
	353	TString dataType = "";
	354	TString dataOrigin = "";
	355	TString dataSpecification = "";
	356
	357	TXMLNode* prevInnerNode = NULL;
	358
69f2a104	359	// -- Retrieve hostname and port
	360	// -------------------------------
	361
06272c83	362	do {
	363	prevInnerNode = innerNode;
	364
	365	if ( ! strcmp(innerNode->GetNodeName(), "text" ) )
	366	continue;
69f2a104	367
06272c83	368	// -- hostname
69f2a104	369	if ( ! strcmp( innerNode->GetNodeName(), "address") ) {
69f2a104	370	HLTInfo(Form(" > %s ++ %s", innerNode->GetNodeName(), innerNode->GetText() ));
06272c83	371	hostname = innerNode->GetText();
69f2a104	372	}
06272c83	373	else if ( ! strcmp( innerNode->GetNodeName(), "port") ) {
69f2a104	374	HLTInfo(Form(" > %s ++ %s", innerNode->GetNodeName(), innerNode->GetText() ));
06272c83	375	TString portS(innerNode->GetText());
	376	if ( portS.IsDigit() )
	377	port = portS.Atoi();
	378	else {
b6bb7ca3	379	HLTError(Form("Port %s is not a digit.", portS.Data()));
06272c83	380	iResult = -1;
	381	}
	382	}
06272c83	383	} while ( ( innerNode = prevInnerNode->GetNextNode() ) && !iResult );
06272c83	384
06272c83	385
06272c83	386	// -- Change hostame from service with proxy, if outside HLT
b325d632	387	if ( fRealm != kHLT && fRealm != kHLT+kHOMERRealmsMax )
06272c83	388	hostname = fgkHOMERProxyNode[fRealm];
06272c83	389
e728e5ba	390
69f2a104	391	// -- Get Data Specifications from blocks
	392	// ----------------------------------------
	393
	394	do {
	395	prevInnerNode = serviceNode;
	396
	397	if ( strcmp( serviceNode->GetNodeName(), "blocks") )
	398	continue;
	399
	400	TXMLNode* blocks = serviceNode->GetChildren();
	401
	402	if ( ! blocks ) {
	403	HLTError(Form("No blocks present"));
	404	return 1;
	405	}
	406
	407	TXMLNode* blockNode = blocks->GetNextNode();
	408	TXMLNode* prevBlockNode = NULL;
	409
	410	if ( ! blockNode ) {
	411	HLTError(Form("No block present in the blocks tag"));
	412	return 1;
	413	}
	414
	415	// -- blocks loop
	416
	417	do {
	418	prevBlockNode = blockNode;
	419
	420	if ( strcmp( blockNode->GetNodeName(), "block") )
	421	continue;
	422
	423	TXMLNode *dataNode = blockNode->GetChildren();
	424	TXMLNode *prevDataNode = NULL;
	425
	426	if ( ! dataNode ) {
	427	HLTError(Form("No data specification tags present in block tag."));
	428	return 1;
	429	}
	430	// -- data spec loop
	431
	432	do {
	433	prevDataNode = dataNode;
	434
	435	if ( ! strcmp(dataNode->GetNodeName(), "text" ) )
	436	continue;
	437
	438	HLTInfo(Form(" %s ++ %s", dataNode->GetNodeName(), dataNode->GetText() ));
	439
	440	if ( ! strcmp( dataNode->GetNodeName(), "dataorigin") ) {
	441	dataOrigin = dataNode->GetText();
	442	}
	443	else if ( ! strcmp( dataNode->GetNodeName(), "datatype") ) {
	444	dataType = dataNode->GetText();
	445	}
	446	else if ( ! strcmp( dataNode->GetNodeName(), "dataspecification") ) {
	447	dataSpecification = dataNode->GetText();
	448	}
	449	} while ( ( dataNode = prevDataNode->GetNextNode() ) && !iResult );
	450
	451	// -- data spec loop
	452
	453	// -- Check the service properties
	454	// ---------------------------------
455
456	// -- Check for completeness of the source properties
457	if ( hostname.IsNull() \|\| !port \|\| dataOrigin.IsNull() \|\|
458	dataType.IsNull() \|\| dataSpecification.IsNull() ) {
459	HLTWarning(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 0x%08X",
460	hostname.Data(), port, dataOrigin.Data(), dataType.Data(), dataSpecification.Atoi()));
461
462	return 1;
463	}
06272c83	464
69f2a104	465	// -- Create new source
	466	// ----------------------
	467
	468	AliHLTHOMERSourceDesc * source = new AliHLTHOMERSourceDesc();
	469	source->SetService( hostname, port, dataOrigin, dataType, dataSpecification );
	470
	471	fSourceList->Add( source );
	472
	473	HLTInfo(Form( "New Source added : %s", source->GetSourceName().Data()));
06272c83	474
69f2a104	475	} while ( ( blockNode = prevBlockNode->GetNextNode() ) && !iResult );
06272c83	476
06272c83	477
69f2a104	478	// -- blocks loop
	479
	480	} while ( ( serviceNode = prevInnerNode->GetNextNode() ) && !iResult );
06272c83	481
	482	return iResult;
	483	}
	484
	485