Minor modification related to the new CASTOR stager
[u/mrichter/AliRoot.git] / RAW / AliRawEvent.cxx
1 // @(#)alimdc:$Name$:$Id$
2 // Author: Fons Rademakers  26/11/99
3
4 /**************************************************************************
5  * Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. *
6  *                                                                        *
7  * Author: The ALICE Off-line Project.                                    *
8  * Contributors are mentioned in the code where appropriate.              *
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 //////////////////////////////////////////////////////////////////////////
20 //                                                                      //
21 // AliRawEvent                                                          //
22 //                                                                      //
23 // Set of classes defining the ALICE RAW event format. The AliRawEvent  //
24 // class defines a RAW event. It consists of an AliEventHeader object   //
25 // an AliEquipmentHeader object, an AliRawData object and an array of   //
26 // sub-events, themselves also being AliRawEvents. The number of        //
27 // sub-events depends on the number of DATE LDC's.                      //
28 // The AliRawEvent objects are written to a ROOT file using different   //
29 // technologies, i.e. to local disk via AliRawDB or via rfiod using     //
30 // AliRawRFIODB or via rootd using AliRawRootdDB or to CASTOR via       //
31 // rootd using AliRawCastorDB (and for performance testing there is     //
32 // also AliRawNullDB).                                                  //
33 // The AliRunDB class provides the interface to the run and file        //
34 // catalogues (AliEn or plain MySQL).                                   //
35 // The AliStats class provides statics information that is added as     //
36 // a single keyed object to each raw file.                              //
37 // The AliTagDB provides an interface to a TAG database.                //
38 // The AliMDC class is usid by the "alimdc" stand-alone program         //
39 // that reads data directly from DATE.                                  //
40 //                                                                      //
41 //////////////////////////////////////////////////////////////////////////
42
43 #include <TObjArray.h>
44
45 #include "AliRawEventHeader.h"
46 #include "AliRawEquipment.h"
47
48 #include "AliRawEvent.h"
49
50
51 ClassImp(AliRawEvent)
52
53
54 //______________________________________________________________________________
55 AliRawEvent::AliRawEvent()
56 {
57    // Create ALICE event object. If ownData is kFALSE we will use a static
58    // raw data object, otherwise a private copy will be made.
59
60    fNEquipments = 0;
61    fNSubEvents  = 0;
62    fEvtHdr      = 0;
63    fEquipments  = 0;
64    fSubEvents   = 0;
65 }
66
67 //______________________________________________________________________________
68 AliRawEvent::AliRawEvent(const AliRawEvent& rawEvent): TObject(rawEvent)
69 {
70 // copy constructor
71
72   Fatal("AliRawEvent", "copy constructor not implemented");
73 }
74
75 //______________________________________________________________________________
76 AliRawEvent& AliRawEvent::operator = (const AliRawEvent& /*rawEvent*/)
77 {
78 // assignment operator
79
80   Fatal("operator =", "assignment operator not implemented");
81   return *this;
82 }
83
84 //______________________________________________________________________________
85 AliRawEventHeader *AliRawEvent::GetHeader()
86 {
87    // Get event header part of AliRawEvent.
88
89    if (!fEvtHdr)
90       fEvtHdr = new AliRawEventHeader;
91
92    return fEvtHdr;
93 }
94
95 //______________________________________________________________________________
96 AliRawEquipment *AliRawEvent::NextEquipment()
97 {
98    // Returns next equipment object.
99
100    if (!fEquipments)
101       fEquipments = new TObjArray(100); // arbitrary, probably enough to prevent resizing
102
103    if (fEquipments->GetSize() <= fNEquipments) {
104       fEquipments->Expand(fNEquipments+10);
105       Warning("NextEquipment", "expanded fEquipments by 10 to %d",
106               fEquipments->GetSize());
107    }
108
109    AliRawEquipment *eq;
110    if (!(eq = (AliRawEquipment *)fEquipments->At(fNEquipments))) {
111       eq = new AliRawEquipment;
112       fEquipments->AddAt(eq, fNEquipments);
113    }
114
115    fNEquipments++;
116
117    return eq;
118 }
119
120 //______________________________________________________________________________
121 AliRawEquipment *AliRawEvent::GetEquipment(Int_t index) const
122 {
123    // Get specified equipment. Returns 0 if equipment does not exist.
124
125    if (!fEquipments)
126       return 0;
127
128    return (AliRawEquipment *) fEquipments->At(index);
129 }
130
131 //______________________________________________________________________________
132 AliRawEvent *AliRawEvent::NextSubEvent()
133 {
134    // Returns next sub-event object.
135
136    if (!fSubEvents)
137       fSubEvents = new TObjArray(100); // arbitrary, probably enough to prevent resizing
138
139    if (fSubEvents->GetSize() <= fNSubEvents) {
140       fSubEvents->Expand(fNSubEvents+10);
141       Warning("NextSubEvent", "expanded fSubEvents by 10 to %d",
142               fSubEvents->GetSize());
143    }
144
145    AliRawEvent *ev;
146    if (!(ev = (AliRawEvent *)fSubEvents->At(fNSubEvents))) {
147       ev = new AliRawEvent;
148       fSubEvents->AddAt(ev, fNSubEvents);
149    }
150
151    fNSubEvents++;
152
153    return ev;
154 }
155
156 //______________________________________________________________________________
157 AliRawEvent *AliRawEvent::GetSubEvent(Int_t index) const
158 {
159    // Get specified sub event. Returns 0 if sub event does not exist.
160
161    if (!fSubEvents)
162       return 0;
163
164    return (AliRawEvent *) fSubEvents->At(index);
165 }
166
167 //______________________________________________________________________________
168 void AliRawEvent::Reset()
169 {
170    // Reset the event in case it needs to be re-used (avoiding costly
171    // new/delete cycle). We reset the size marker for the AliRawData
172    // objects and the sub event counter.
173
174    for (int i = 0; i < fNEquipments; i++) {
175       AliRawEquipment *eq = (AliRawEquipment *)fEquipments->At(i);
176       eq->Reset();
177    }
178    fNEquipments = 0;
179    for (int i = 0; i < fNSubEvents; i++) {
180       AliRawEvent *ev = (AliRawEvent *)fSubEvents->At(i);
181       ev->Reset();
182    }
183    fNSubEvents = 0;
184 }
185
186 //______________________________________________________________________________
187 AliRawEvent::~AliRawEvent()
188 {
189    // Clean up event object. Delete also, possible, private raw data.
190
191    delete fEvtHdr;
192    if (fEquipments)
193       fEquipments->Delete();
194    delete fEquipments;
195    if (fSubEvents)
196       fSubEvents->Delete();
197    delete fSubEvents;
198 }