[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 "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),
  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, TEntryList *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"
1ca27a6f	30	#include "TEntryList.h"
1ca27a6f	31	#include "TObjArray.h"
c1b83ab9	32
	33	#include "AliXMLCollection.h"
	34
	35	ClassImp(AliXMLCollection)
	36
	37	//___________________________________________________________________________
	38	AliXMLCollection::AliXMLCollection() :
1ca27a6f	39	TGridCollection(),
	40	fXmlFile(),
	41	fEventList(0),
	42	fEventListIter(0),
	43	fCurrent(0),
fe12e09c	44	fCollectionName(),
1ca27a6f	45	fout() {
c1b83ab9	46	//Default constructor
	47	}
	48
1ca27a6f	49	//___________________________________________________________________________
	50	AliXMLCollection::AliXMLCollection(const char *localcollectionfile) {
	51	// Create Alien event collection, by reading collection for the specified
	52	// file.
	53
	54	fXmlFile = localcollectionfile;
	55	fEventList = new TList();
	56	fEventList->SetOwner(kTRUE);
	57	fEventListIter = new TIter(fEventList);
	58	fCurrent = 0;
	59	if (localcollectionfile!=0) {
	60	ParseXML();
	61	}
	62	}
	63
	64	//___________________________________________________________________________
	65	AliXMLCollection::AliXMLCollection(const AliXMLCollection& collection):
	66	TGridCollection(collection),
	67	fXmlFile(collection.fXmlFile),
1ca27a6f	68	fCollectionName(collection.fCollectionName) {
	69	//copy constructor
	70
	71	if (collection.fEventList) fEventList = new TList();
	72	if (collection.fEventListIter) fEventListIter = new TIter(fEventList);
	73	if (collection.fCurrent) fCurrent = 0;
	74	}
	75
c1b83ab9	76	//___________________________________________________________________________
	77	AliXMLCollection::~AliXMLCollection() {
	78	//Destructor
1ca27a6f	79	if(fEventList) delete fEventList;
1ca27a6f	80	if(fEventListIter) delete fEventListIter;
c1b83ab9	81	}
	82
	83	//___________________________________________________________________________
	84	Bool_t AliXMLCollection::WriteHeader() {
	85	//Creates the xml output file
	86
	87	TString xmlName = fCollectionName;
	88	xmlName += ".xml";
	89
	90	TString collectionHeader = "<collection name=";
	91	collectionHeader += "\"";
	92	collectionHeader += fCollectionName;
	93	collectionHeader += "\"";
	94	collectionHeader += ">";
	95
	96	// Open the output stream
	97	fout.open(xmlName);
	98	fout<<"<?xml version=\"1.0\"?>\n";
eb771b73	99	fout<<"<alien>\n";
c1b83ab9	100	fout<<" "<<collectionHeader<<"\n";
	101
	102	return kTRUE;
	103	}
	104
	105	//___________________________________________________________________________
5b7be856	106	Bool_t AliXMLCollection::WriteBody(Int_t counter, const char* guid, const char* lfn, const char* turl, TEntryList *list) {
c1b83ab9	107	//Writes the body of the xml collection
	108	TString listline;
	109	for(Int_t i = 0; i < list->GetN(); i++) {
	110	listline += list->GetEntry(i);
	111	listline += ",";
	112	}
	113	listline = listline(0,listline.Length()-1);
	114
	115	TString line0 = "<event name=\"";
	116	line0 += counter;
	117	line0 += "\">";
	118
	119	TString line1 = "<file name=\"AliESDs.root\" ";
	120	line1 += "guid=\"";
	121	line1 += guid;
	122	line1 += "\" ";
eb771b73	123	line1 += "lfn=\"";
	124	line1 += lfn;
	125	line1 += "\" ";
ab02b208	126	line1 += "turl=\"";
	127	line1 += turl;
	128	line1 += "\" ";
	129	line1 += "evlist=\"";
c1b83ab9	130	line1 += listline;
	131	line1 += "\"";
	132	line1 += " />";
	133
	134	fout<<" "<<line0<<"\n";
	135	fout<<" "<<line1<<"\n";
	136	fout<<" </event>\n";
	137
	138	return kTRUE;
	139	}
	140
	141	//___________________________________________________________________________
	142	Bool_t AliXMLCollection::Export() {
	143	//Closes the stream
	144	fout<<" "<<"</collection>\n";
eb771b73	145	fout<<"</alien>\n";
c1b83ab9	146
	147	fout.close();
	148
	149	return kTRUE;
	150	}
1ca27a6f	151
	152	//___________________________________________________________________________
	153	void AliXMLCollection::Reset() {
	154	// Reset file iterator.
	155
	156	fEventListIter->Reset();
	157	fCurrent = 0;
	158	}
	159
	160	//___________________________________________________________________________
	161	TMap *AliXMLCollection::Next() {
	162	// Return next event file map.
	163
	164	fCurrent = (TMap*)fEventListIter->Next();
	165	return fCurrent;
	166	}
	167
	168	//___________________________________________________________________________
	169	const char AliXMLCollection::GetTURL(const char filename) const {
	170	// Get a file's transport URL (TURL). Returns 0 in case of error.
	171
	172	if (fCurrent) {
	173	TMap obj = (TMap)fCurrent->GetValue(filename);
	174	if (obj) {
	175	if (obj->GetValue("turl")) {
	176	return ( ((TObjString*)obj->GetValue("turl"))->GetName());
	177	}
	178	}
	179	}
	180	Error("GetTURL","cannot get TURL of file %s",filename);
	181	return 0;
	182	}
	183
	184	//___________________________________________________________________________
	185	TEntryList AliXMLCollection::GetEventList(const char filename) const {
	186	// Get a file's event list. Returns 0 in case of error.
	187
	188	if (fCurrent) {
	189	TMap obj = (TMap ) fCurrent->GetValue(filename);
	190	if (obj) {
	191	if (obj->GetValue("evlist")) {
	192	return ((TEntryList *) obj->GetValue("evlist"));
	193	}
	194	}
	195	}
	196	Error("GetEvList", "cannot get evelist of file %s", filename);
	197	return 0;
	198	}
	199
	200	//___________________________________________________________________________
	201	Bool_t AliXMLCollection::Remove(TMap * map) {
	202	// Return next event file map.
	203	if (fEventList->Remove(map)) {
	204	return kTRUE;
	205	} else {
	206	return kFALSE;
	207	}
	208	}
	209
	210	//___________________________________________________________________________
	211	const char AliXMLCollection::GetLFN(const char filename) const {
	212	// Get a file's LFN. Returns 0 in case of error.
	213
	214	if (fCurrent) {
215	TMap obj = (TMap ) fCurrent->GetValue("");
216	if (obj) {
217	if (obj->GetValue("lfn")) {
218	return (((TObjString *) obj->GetValue("lfn"))->GetName());
219	}
220	}
221	}
222	Error("GetLFN", "cannot get LFN");
223	return 0;
224	}
225
226	//__________________________________________________________________________
227	Bool_t AliXMLCollection::OverlapCollection(AliXMLCollection * comparator) {
228	// return kTRUE if comparator overlaps with this
229	if ((!comparator)) return kFALSE;
230
231	loopagain:
232	// loop over col1 and try to find it in col2
233	this->Reset();
234	// loop over all elements in reference (=this)
235	TMap *overlapmap;
236	while ((overlapmap = this->Next())) {
237	comparator->Reset();
238	Bool_t found = kFALSE;
239	// try to find in the comparator collection
240	while ((comparator->Next())) {
241	TString s1 = this->GetLFN("");
242	TString s2 = comparator->GetLFN("");
243	if (s1 == s2) {
244	found = kTRUE;
245	break;
246	}
247	}
248	if (!found) {
249	this->Remove(overlapmap);
250	goto loopagain;
251	}
252	}
253	return kTRUE;
254	}
255
256	//___________________________________________________________________________
257	AliXMLCollection AliXMLCollection::Open(const char localcollectionfile) {
258	// Static method used to create an Alien event collection, by reading
259	// collection for the specified file.
260
261	AliXMLCollection *collection = new AliXMLCollection(localcollectionfile);
262	return collection;
263	}
264
265	//___________________________________________________________________________
266	void AliXMLCollection::ParseXML() {
267	// Parse event file collection XML file.
268
269	TXMLEngine xml;
270
271	XMLDocPointer_t xdoc = xml.ParseFile(fXmlFile);
272	if (!xdoc) {
273	Error("ParseXML","cannot parse the xml file %s",fXmlFile.Data());
274	return;
275	}
276
277	XMLNodePointer_t xalien = xml.DocGetRootElement(xdoc);
278	if (!xalien) {
279	Error("ParseXML","cannot find the <alien> tag in %s",fXmlFile.Data());
280	return;
281	}
282
283	XMLNodePointer_t xcollection = xml.GetChild(xalien);
284	if (!xcollection) {
285	Error("ParseXML","cannot find the <collection> tag in %s",fXmlFile.Data());
286	return;
287	}
288
289	XMLNodePointer_t xevent = xml.GetChild(xcollection);;
290	if (!xevent) {
291	Error("ParseXML","cannot find the <event> tag in %s",fXmlFile.Data());
292	return;
293	}
294	if (!xevent) return;
295
296	do {
297	if (xml.GetAttr(xevent, "name")) {
298	TMap *files = new TMap();
299
300	// files
301	XMLNodePointer_t xfile = xml.GetChild(xevent);
302	if (!xfile) continue;
303
304	Bool_t firstfile=kTRUE;
305	do {
306	// here we have an event file
307	// get the attributes;
308	xml.GetAttr(xfile, "lfn");
309	xml.GetAttr(xfile, "turl");
310
311	TMap *attributes = new TMap();
312	TObjString *oname = new TObjString(xml.GetAttr(xfile,"name"));
313	TObjString *oturl = new TObjString(xml.GetAttr(xfile,"turl"));
314	TObjString *olfn = new TObjString(xml.GetAttr(xfile,"lfn"));
315	TObjString *oguid = new TObjString(xml.GetAttr(xfile,"guid"));
316	TObjString *oevlist = new TObjString(xml.GetAttr(xfile, "evlist"));
317	printf("Collection: %s - The Eventlist is %s\n",fXmlFile.Data(),oevlist->GetName());
318	if (oevlist->GetName() != "") {
319	TEntryList *xmlevlist = new TEntryList(oturl->GetName(), oguid->GetName());
320	TString stringevlist = oevlist->GetName();
321	TObjArray *evlist = stringevlist.Tokenize(",");
322	for (Int_t n = 0; n < evlist->GetEntries(); n++) xmlevlist->Enter(atol(((TObjString *) evlist->At(n))->GetName()));
323	attributes->Add(new TObjString("evlist"), xmlevlist);
324	}
325
326	attributes->Add(new TObjString("name"),oname);
327	attributes->Add(new TObjString("turl"),oturl);
328	attributes->Add(new TObjString("lfn"),olfn);
329	attributes->Add(new TObjString("guid"),oguid);
330	files->Add(new TObjString(xml.GetAttr(xfile,"name")) , attributes);
331
332	// we add the first file always as a file without name to the map
333	if (firstfile) {
334	files->Add(new TObjString(""),attributes);
335	firstfile=kFALSE;
336	}
337	} while ((xfile = xml.GetNext(xfile)));
338	fEventList->Add(files);
339	}
340	} while ((xevent = xml.GetNext(xevent)));
341	}
342