[u/mrichter/AliRoot.git] / STEER / AliXMLCollection.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * 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.                  *
 **************************************************************************/

/* $Id$ */

//-----------------------------------------------------------------
//           Implementation of the AliXMLCollection class
//   This is the class that creates XML collections after querying the tags
//   Origin: Panos Christakoglou, UOA-CERN, Panos.Christakoglou@cern.ch
//-----------------------------------------------------------------

//ROOT
#include "Riostream.h"
#include "TString.h"
#include "TMap.h"
#include "TObjString.h"
#include "TXMLEngine.h"
#include "TEventList.h"
#include "TEntryList.h"
#include "TObjArray.h"

#include "AliXMLCollection.h"

ClassImp(AliXMLCollection)

//___________________________________________________________________________
  AliXMLCollection::AliXMLCollection() :
    TGridCollection(),
    fXmlFile(),
    fEventList(0),
    fEventListIter(0),
    fCurrent(0),
    fCollectionName(),
    fout() {
  //Default constructor
}

//___________________________________________________________________________
AliXMLCollection::AliXMLCollection(const char *localcollectionfile) {
   // Create Alien event collection, by reading collection for the specified
   // file.

   fXmlFile = localcollectionfile;
   fEventList = new TList();
   fEventList->SetOwner(kTRUE);
   fEventListIter = new TIter(fEventList);
   fCurrent = 0;
   if (localcollectionfile!=0) {
     ParseXML();
   }
}

//___________________________________________________________________________
AliXMLCollection::AliXMLCollection(const AliXMLCollection& collection):
  TGridCollection(collection),
  fXmlFile(collection.fXmlFile),
  //fEventList(0),
  //fEventListIter(0),
  //fCurrent(0),
  fCollectionName(collection.fCollectionName) {
  //copy constructor

  if (collection.fEventList) fEventList = new TList();
  if (collection.fEventListIter) fEventListIter = new TIter(fEventList);
  if (collection.fCurrent) fCurrent = 0;
}

//___________________________________________________________________________
AliXMLCollection::~AliXMLCollection() {
  //Destructor
  if(fEventList) delete fEventList;
  if(fEventListIter) delete fEventListIter;
}

//___________________________________________________________________________
Bool_t AliXMLCollection::WriteHeader() {
  //Creates the xml output file

  TString xmlName = fCollectionName;
  xmlName += ".xml";

  TString collectionHeader = "<collection name=";
  collectionHeader += "\"";
  collectionHeader += fCollectionName;
  collectionHeader += "\"";
  collectionHeader += ">";
  
  // Open the output stream
  fout.open(xmlName);
  fout<<"<?xml version=\"1.0\"?>\n";
  fout<<"<alien>\n";
  fout<<"  "<<collectionHeader<<"\n";  

  return kTRUE;
}

//___________________________________________________________________________
Bool_t AliXMLCollection::WriteBody(Int_t counter, const char* guid, const char* lfn, const char* turl, TEventList *list) {
  //Writes the body of the xml collection
  TString listline;
  for(Int_t i = 0; i < list->GetN(); i++) {
    listline += list->GetEntry(i);
    listline += ",";
  }  
  listline = listline(0,listline.Length()-1);

  TString line0 = "<event name=\"";
  line0 += counter;
  line0 += "\">";
  
  TString line1 = "<file name=\"AliESDs.root\" ";
  line1 += "guid=\"";
  line1 += guid;
  line1 += "\" ";
  line1 += "lfn=\"";
  line1 += lfn;
  line1 += "\" ";
  line1 += "turl=\"";
  line1 += turl;
  line1 += "\" ";
  line1 += "evlist=\"";
  line1 += listline;
  line1 += "\"";
  line1 += " />";
  
  fout<<"    "<<line0<<"\n";
  fout<<"      "<<line1<<"\n";
  fout<<"    </event>\n";
  
  return kTRUE;
}

//___________________________________________________________________________
Bool_t AliXMLCollection::Export() {
  //Closes the stream
  fout<<"  "<<"</collection>\n";
  fout<<"</alien>\n";

  fout.close();

  return kTRUE;
}

//___________________________________________________________________________
void AliXMLCollection::Reset() {
  // Reset file iterator.
  
  fEventListIter->Reset();
  fCurrent = 0;
}

//___________________________________________________________________________
TMap *AliXMLCollection::Next() {
  // Return next event file map.
  
  fCurrent = (TMap*)fEventListIter->Next();
  return fCurrent;
}

//___________________________________________________________________________
const char *AliXMLCollection::GetTURL(const char* filename) const {
  // Get a file's transport URL (TURL). Returns 0 in case of error.
  
  if (fCurrent) {
    TMap *obj = (TMap*)fCurrent->GetValue(filename);
    if (obj) {
      if (obj->GetValue("turl")) {
	return ( ((TObjString*)obj->GetValue("turl"))->GetName());
      }
    }
  }
  Error("GetTURL","cannot get TURL of file %s",filename);
  return 0;
}

//___________________________________________________________________________
TEntryList *AliXMLCollection::GetEventList(const char *filename) const {
  // Get a file's event list. Returns 0 in case of error.

  if (fCurrent) {
    TMap *obj = (TMap *) fCurrent->GetValue(filename);
    if (obj) {
      if (obj->GetValue("evlist")) {
	return ((TEntryList *) obj->GetValue("evlist"));
      }
    }
  }
  Error("GetEvList", "cannot get evelist of file %s", filename);
  return 0;
}

//___________________________________________________________________________
Bool_t AliXMLCollection::Remove(TMap * map) {
  // Return next event file map.
  if (fEventList->Remove(map)) {
    return kTRUE;
  } else {
    return kFALSE;
  }
}

//___________________________________________________________________________
const char *AliXMLCollection::GetLFN(const char* filename) const {
  // Get a file's LFN. Returns 0 in case of error.
  
  if (fCurrent) {
    TMap *obj = (TMap *) fCurrent->GetValue("");
    if (obj) {
      if (obj->GetValue("lfn")) {
	return (((TObjString *) obj->GetValue("lfn"))->GetName());
      }
    }
  }
  Error("GetLFN", "cannot get LFN");
  return 0;
}

//__________________________________________________________________________
Bool_t AliXMLCollection::OverlapCollection(AliXMLCollection * comparator) {
  // return kTRUE if comparator overlaps with this
  if ((!comparator)) return kFALSE;
  
 loopagain:
  // loop over col1 and try to find it in col2
  this->Reset();
  // loop over all elements in reference (=this)
  TMap *overlapmap;
  while ((overlapmap = this->Next())) {
    comparator->Reset();
    Bool_t found = kFALSE;
    // try to find in the comparator collection
    while ((comparator->Next())) {
      TString s1 = this->GetLFN("");
      TString s2 = comparator->GetLFN("");
      if (s1 == s2) {
	found = kTRUE;
	break;
      }
    }
    if (!found) {
      this->Remove(overlapmap);
      goto loopagain;
    }
  }
  return kTRUE;
}

//___________________________________________________________________________
AliXMLCollection *AliXMLCollection::Open(const char *localcollectionfile) {
  // Static method used to create an Alien event collection, by reading
  // collection for the specified file.
  
  AliXMLCollection *collection = new AliXMLCollection(localcollectionfile);
  return collection;
}

//___________________________________________________________________________
void AliXMLCollection::ParseXML() {
  // Parse event file collection XML file.
  
  TXMLEngine xml;
  
  XMLDocPointer_t xdoc = xml.ParseFile(fXmlFile);
  if (!xdoc) {
    Error("ParseXML","cannot parse the xml file %s",fXmlFile.Data());
    return;
  }

  XMLNodePointer_t xalien = xml.DocGetRootElement(xdoc);
  if (!xalien) {
    Error("ParseXML","cannot find the <alien> tag in %s",fXmlFile.Data());
    return;
  }
  
  XMLNodePointer_t xcollection = xml.GetChild(xalien);
  if (!xcollection) {
    Error("ParseXML","cannot find the <collection> tag in %s",fXmlFile.Data());
    return;
  }
  
  XMLNodePointer_t xevent = xml.GetChild(xcollection);;
  if (!xevent) {
    Error("ParseXML","cannot find the <event> tag in %s",fXmlFile.Data());
    return;
  }
  if (!xevent) return;
  
  do {
    if (xml.GetAttr(xevent, "name")) {
      TMap *files = new TMap();
            
      // files
      XMLNodePointer_t xfile = xml.GetChild(xevent);
      if (!xfile) continue;
      
      Bool_t firstfile=kTRUE;
      do {
	// here we have an event file
	// get the attributes;
	xml.GetAttr(xfile, "lfn");
	xml.GetAttr(xfile, "turl");
	
	TMap *attributes = new TMap();
	TObjString *oname = new TObjString(xml.GetAttr(xfile,"name"));
	TObjString *oturl = new TObjString(xml.GetAttr(xfile,"turl"));
	TObjString *olfn  = new TObjString(xml.GetAttr(xfile,"lfn"));
	TObjString *oguid = new TObjString(xml.GetAttr(xfile,"guid"));
	TObjString *oevlist = new TObjString(xml.GetAttr(xfile, "evlist"));
	printf("Collection: %s - The Eventlist is %s\n",fXmlFile.Data(),oevlist->GetName());
	if (oevlist->GetName() != "") {
	  TEntryList *xmlevlist = new TEntryList(oturl->GetName(), oguid->GetName());
	  TString stringevlist = oevlist->GetName();
	  TObjArray *evlist = stringevlist.Tokenize(",");
	  for (Int_t n = 0; n < evlist->GetEntries(); n++)  xmlevlist->Enter(atol(((TObjString *) evlist->At(n))->GetName()));
	  attributes->Add(new TObjString("evlist"), xmlevlist);
	}
	
	attributes->Add(new TObjString("name"),oname);
	attributes->Add(new TObjString("turl"),oturl);
	attributes->Add(new TObjString("lfn"),olfn);
	attributes->Add(new TObjString("guid"),oguid);
	files->Add(new TObjString(xml.GetAttr(xfile,"name")) , attributes);
	
	// we add the first file always as a file without name to the map
	if (firstfile) {
	  files->Add(new TObjString(""),attributes);
	  firstfile=kFALSE;
	}
      } while ((xfile = xml.GetNext(xfile)));
      fEventList->Add(files);
    }
  } while ((xevent =  xml.GetNext(xevent)));
}
Commit	Line	Data
c1b83ab9	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	6	* *
	7	* Permission to use, copy, modify and distribute this software and its *
	8	* documentation strictly for non-commercial purposes is hereby granted *
	9	* without fee, provided that the above copyright notice appears in all *
	10	* copies and that both the copyright notice and this permission notice *
	11	* appear in the supporting documentation. The authors make no claims *
	12	* about the suitability of this software for any purpose. It is *
	13	* provided "as is" without express or implied warranty. *
	14	**************************************************************************/
	15
	16	/* $Id$ */
	17
	18	//-----------------------------------------------------------------
	19	// Implementation of the AliXMLCollection class
	20	// This is the class that creates XML collections after querying the tags
	21	// Origin: Panos Christakoglou, UOA-CERN, Panos.Christakoglou@cern.ch
	22	//-----------------------------------------------------------------
	23
	24	//ROOT
1ca27a6f	25	#include "Riostream.h"
	26	#include "TString.h"
	27	#include "TMap.h"
	28	#include "TObjString.h"
	29	#include "TXMLEngine.h"
	30	#include "TEventList.h"
	31	#include "TEntryList.h"
	32	#include "TObjArray.h"
c1b83ab9	33
	34	#include "AliXMLCollection.h"
	35
	36	ClassImp(AliXMLCollection)
	37
	38	//___________________________________________________________________________
	39	AliXMLCollection::AliXMLCollection() :
1ca27a6f	40	TGridCollection(),
	41	fXmlFile(),
	42	fEventList(0),
	43	fEventListIter(0),
	44	fCurrent(0),
fe12e09c	45	fCollectionName(),
1ca27a6f	46	fout() {
c1b83ab9	47	//Default constructor
	48	}
	49
1ca27a6f	50	//___________________________________________________________________________
	51	AliXMLCollection::AliXMLCollection(const char *localcollectionfile) {
	52	// Create Alien event collection, by reading collection for the specified
	53	// file.
	54
	55	fXmlFile = localcollectionfile;
	56	fEventList = new TList();
	57	fEventList->SetOwner(kTRUE);
	58	fEventListIter = new TIter(fEventList);
	59	fCurrent = 0;
	60	if (localcollectionfile!=0) {
	61	ParseXML();
	62	}
	63	}
	64
	65	//___________________________________________________________________________
	66	AliXMLCollection::AliXMLCollection(const AliXMLCollection& collection):
	67	TGridCollection(collection),
	68	fXmlFile(collection.fXmlFile),
	69	//fEventList(0),
	70	//fEventListIter(0),
	71	//fCurrent(0),
	72	fCollectionName(collection.fCollectionName) {
	73	//copy constructor
	74
	75	if (collection.fEventList) fEventList = new TList();
	76	if (collection.fEventListIter) fEventListIter = new TIter(fEventList);
	77	if (collection.fCurrent) fCurrent = 0;
	78	}
	79
c1b83ab9	80	//___________________________________________________________________________
	81	AliXMLCollection::~AliXMLCollection() {
	82	//Destructor
1ca27a6f	83	if(fEventList) delete fEventList;
1ca27a6f	84	if(fEventListIter) delete fEventListIter;
c1b83ab9	85	}
	86
	87	//___________________________________________________________________________
	88	Bool_t AliXMLCollection::WriteHeader() {
	89	//Creates the xml output file
	90
	91	TString xmlName = fCollectionName;
	92	xmlName += ".xml";
	93
	94	TString collectionHeader = "<collection name=";
	95	collectionHeader += "\"";
	96	collectionHeader += fCollectionName;
	97	collectionHeader += "\"";
	98	collectionHeader += ">";
	99
	100	// Open the output stream
	101	fout.open(xmlName);
	102	fout<<"<?xml version=\"1.0\"?>\n";
eb771b73	103	fout<<"<alien>\n";
c1b83ab9	104	fout<<" "<<collectionHeader<<"\n";
	105
	106	return kTRUE;
	107	}
	108
	109	//___________________________________________________________________________
eb771b73	110	Bool_t AliXMLCollection::WriteBody(Int_t counter, const char* guid, const char* lfn, const char* turl, TEventList *list) {
c1b83ab9	111	//Writes the body of the xml collection
	112	TString listline;
	113	for(Int_t i = 0; i < list->GetN(); i++) {
	114	listline += list->GetEntry(i);
	115	listline += ",";
	116	}
	117	listline = listline(0,listline.Length()-1);
	118
	119	TString line0 = "<event name=\"";
	120	line0 += counter;
	121	line0 += "\">";
	122
	123	TString line1 = "<file name=\"AliESDs.root\" ";
	124	line1 += "guid=\"";
	125	line1 += guid;
	126	line1 += "\" ";
eb771b73	127	line1 += "lfn=\"";
	128	line1 += lfn;
	129	line1 += "\" ";
ab02b208	130	line1 += "turl=\"";
	131	line1 += turl;
	132	line1 += "\" ";
	133	line1 += "evlist=\"";
c1b83ab9	134	line1 += listline;
	135	line1 += "\"";
	136	line1 += " />";
	137
	138	fout<<" "<<line0<<"\n";
	139	fout<<" "<<line1<<"\n";
	140	fout<<" </event>\n";
	141
	142	return kTRUE;
	143	}
	144
	145	//___________________________________________________________________________
	146	Bool_t AliXMLCollection::Export() {
	147	//Closes the stream
	148	fout<<" "<<"</collection>\n";
eb771b73	149	fout<<"</alien>\n";
c1b83ab9	150
	151	fout.close();
	152
	153	return kTRUE;
	154	}
1ca27a6f	155
	156	//___________________________________________________________________________
	157	void AliXMLCollection::Reset() {
	158	// Reset file iterator.
	159
	160	fEventListIter->Reset();
	161	fCurrent = 0;
	162	}
	163
	164	//___________________________________________________________________________
	165	TMap *AliXMLCollection::Next() {
	166	// Return next event file map.
	167
	168	fCurrent = (TMap*)fEventListIter->Next();
	169	return fCurrent;
	170	}
	171
	172	//___________________________________________________________________________
	173	const char AliXMLCollection::GetTURL(const char filename) const {
	174	// Get a file's transport URL (TURL). Returns 0 in case of error.
	175
	176	if (fCurrent) {
	177	TMap obj = (TMap)fCurrent->GetValue(filename);
	178	if (obj) {
	179	if (obj->GetValue("turl")) {
	180	return ( ((TObjString*)obj->GetValue("turl"))->GetName());
	181	}
	182	}
	183	}
	184	Error("GetTURL","cannot get TURL of file %s",filename);
	185	return 0;
	186	}
	187
	188	//___________________________________________________________________________
	189	TEntryList AliXMLCollection::GetEventList(const char filename) const {
	190	// Get a file's event list. Returns 0 in case of error.
	191
	192	if (fCurrent) {
	193	TMap obj = (TMap ) fCurrent->GetValue(filename);
	194	if (obj) {
	195	if (obj->GetValue("evlist")) {
	196	return ((TEntryList *) obj->GetValue("evlist"));
	197	}
	198	}
	199	}
	200	Error("GetEvList", "cannot get evelist of file %s", filename);
	201	return 0;
	202	}
	203
	204	//___________________________________________________________________________
	205	Bool_t AliXMLCollection::Remove(TMap * map) {
	206	// Return next event file map.
	207	if (fEventList->Remove(map)) {
	208	return kTRUE;
	209	} else {
	210	return kFALSE;
	211	}
	212	}
	213
	214	//___________________________________________________________________________
	215	const char AliXMLCollection::GetLFN(const char filename) const {
	216	// Get a file's LFN. Returns 0 in case of error.
	217
	218	if (fCurrent) {
219	TMap obj = (TMap ) fCurrent->GetValue("");
220	if (obj) {
221	if (obj->GetValue("lfn")) {
222	return (((TObjString *) obj->GetValue("lfn"))->GetName());
223	}
224	}
225	}
226	Error("GetLFN", "cannot get LFN");
227	return 0;
228	}
229
230	//__________________________________________________________________________
231	Bool_t AliXMLCollection::OverlapCollection(AliXMLCollection * comparator) {
232	// return kTRUE if comparator overlaps with this
233	if ((!comparator)) return kFALSE;
234
235	loopagain:
236	// loop over col1 and try to find it in col2
237	this->Reset();
238	// loop over all elements in reference (=this)
239	TMap *overlapmap;
240	while ((overlapmap = this->Next())) {
241	comparator->Reset();
242	Bool_t found = kFALSE;
243	// try to find in the comparator collection
244	while ((comparator->Next())) {
245	TString s1 = this->GetLFN("");
246	TString s2 = comparator->GetLFN("");
247	if (s1 == s2) {
248	found = kTRUE;
249	break;
250	}
251	}
252	if (!found) {
253	this->Remove(overlapmap);
254	goto loopagain;
255	}
256	}
257	return kTRUE;
258	}
259
260	//___________________________________________________________________________
261	AliXMLCollection AliXMLCollection::Open(const char localcollectionfile) {
262	// Static method used to create an Alien event collection, by reading
263	// collection for the specified file.
264
265	AliXMLCollection *collection = new AliXMLCollection(localcollectionfile);
266	return collection;
267	}
268
269	//___________________________________________________________________________
270	void AliXMLCollection::ParseXML() {
271	// Parse event file collection XML file.
272
273	TXMLEngine xml;
274
275	XMLDocPointer_t xdoc = xml.ParseFile(fXmlFile);
276	if (!xdoc) {
277	Error("ParseXML","cannot parse the xml file %s",fXmlFile.Data());
278	return;
279	}
280
281	XMLNodePointer_t xalien = xml.DocGetRootElement(xdoc);
282	if (!xalien) {
283	Error("ParseXML","cannot find the <alien> tag in %s",fXmlFile.Data());
284	return;
285	}
286
287	XMLNodePointer_t xcollection = xml.GetChild(xalien);
288	if (!xcollection) {
289	Error("ParseXML","cannot find the <collection> tag in %s",fXmlFile.Data());
290	return;
291	}
292
293	XMLNodePointer_t xevent = xml.GetChild(xcollection);;
294	if (!xevent) {
295	Error("ParseXML","cannot find the <event> tag in %s",fXmlFile.Data());
296	return;
297	}
298	if (!xevent) return;
299
300	do {
301	if (xml.GetAttr(xevent, "name")) {
302	TMap *files = new TMap();
303
304	// files
305	XMLNodePointer_t xfile = xml.GetChild(xevent);
306	if (!xfile) continue;
307
308	Bool_t firstfile=kTRUE;
309	do {
310	// here we have an event file
311	// get the attributes;
312	xml.GetAttr(xfile, "lfn");
313	xml.GetAttr(xfile, "turl");
314
315	TMap *attributes = new TMap();
316	TObjString *oname = new TObjString(xml.GetAttr(xfile,"name"));
317	TObjString *oturl = new TObjString(xml.GetAttr(xfile,"turl"));
318	TObjString *olfn = new TObjString(xml.GetAttr(xfile,"lfn"));
319	TObjString *oguid = new TObjString(xml.GetAttr(xfile,"guid"));
320	TObjString *oevlist = new TObjString(xml.GetAttr(xfile, "evlist"));
321	printf("Collection: %s - The Eventlist is %s\n",fXmlFile.Data(),oevlist->GetName());
322	if (oevlist->GetName() != "") {
323	TEntryList *xmlevlist = new TEntryList(oturl->GetName(), oguid->GetName());
324	TString stringevlist = oevlist->GetName();
325	TObjArray *evlist = stringevlist.Tokenize(",");
326	for (Int_t n = 0; n < evlist->GetEntries(); n++) xmlevlist->Enter(atol(((TObjString *) evlist->At(n))->GetName()));
327	attributes->Add(new TObjString("evlist"), xmlevlist);
328	}
329
330	attributes->Add(new TObjString("name"),oname);
331	attributes->Add(new TObjString("turl"),oturl);
332	attributes->Add(new TObjString("lfn"),olfn);
333	attributes->Add(new TObjString("guid"),oguid);
334	files->Add(new TObjString(xml.GetAttr(xfile,"name")) , attributes);
335
336	// we add the first file always as a file without name to the map
337	if (firstfile) {
338	files->Add(new TObjString(""),attributes);
339	firstfile=kFALSE;
340	}
341	} while ((xfile = xml.GetNext(xfile)));
342	fEventList->Add(files);
343	}
344	} while ((xevent = xml.GetNext(xevent)));
345	}
346