Changeset 5160 for trunk/MagicSoft/Mars/mfileio

Timestamp:

10/01/04 19:02:30 (20 years ago)

Author:

tbretz

Message:

*** empty log message ***

Location:

trunk/MagicSoft/Mars/mfileio

Files:

• MRead.cc (modified) (2 diffs)
• MRead.h (modified) (1 diff)
• MReadMarsFile.cc (modified) (3 diffs)
• MReadMarsFile.h (modified) (1 diff)
• MReadTree.cc (modified) (1 diff)
• MReadTree.h (modified) (1 diff)

trunk/MagicSoft/Mars/mfileio/MRead.cc

@@ -24 +24 @@
 
 /////////////////////////////////////////////////////////////////////////////
-//                                                                         //
-// MRead                                                                   //
-//                                                                         //
-// Base class for all reading tasks                                        //
-//                                                                         //
-// You can set a selector. Depending on the impelementation in the derived //
-// class it can be used to skip events, if the filter return kFALSE.       //
-// Make sure that the selector (filter) doesn't need information which     //
-// doesn't exist before reading an event!                                  //
-//                                                                         //
+//
+// MRead
+//
+// Base class for all reading tasks
+//
+// You can set a selector. Depending on the impelementation in the derived
+// class it can be used to skip events, if the filter return kFALSE.
+// Make sure that the selector (filter) doesn't need information which
+// doesn't exist before reading an event!
+//
 /////////////////////////////////////////////////////////////////////////////
 #include "MRead.h"
+
+#include <TSystem.h>
 
 #include "MLog.h"
@@ -119 +121 @@
     return i!=0;
 }
+
+// --------------------------------------------------------------------------
+//
+// Check if the file exists and has read permission. Derived classes
+// should also check whether its file type is correct.
+//
+// Returning 0 means: file doesn't exist.
+// A returned number corresponds to different file types (1 if only
+// one exists)
+//
+Byte_t MRead::IsFileValid(const char *name)
+{
+    return !gSystem->AccessPathName(name, kFileExists) ? 1 : 0;
+}

trunk/MagicSoft/Mars/mfileio/MRead.h

@@ -21 +21 @@
     virtual Bool_t  Rewind();
 
+    static Byte_t IsFileValid(const char *name);
+
     void SetSelector(MFilter *f) { fSelector = f; }
     MFilter *GetSelector() { return fSelector; }

trunk/MagicSoft/Mars/mfileio/MReadMarsFile.cc

@@ -18 +18 @@
 !   Author(s): Thomas Bretz, 12/2000 <mailto:tbretz@astro.uni-wuerzburg.de>
 !
-!   Copyright: MAGIC Software Development, 2000-2003
+!   Copyright: MAGIC Software Development, 2000-2004
 !
 !
@@ -24 +24 @@
 
 /////////////////////////////////////////////////////////////////////////////
-//                                                                         //
-// MReadMarsFile                                                           //
-//                                                                         //
-// This task works more or less like MReadTree, but in addition PreProcess //
-// reads all the information from the 'RunHeader' tree.                    //
-//                                                                         //
-// Warning: Until now this works only for 'one run header per file'        //
-//                                                                         //
+//
+// MReadMarsFile
+//
+// This task works more or less like MReadTree, but in addition PreProcess
+// reads all the information from the 'RunHeader' tree.
+//
+// Warning: Until now this works only for 'one run header per file'
+//
 /////////////////////////////////////////////////////////////////////////////
 #include "MReadMarsFile.h"
+
+#include <fstream>
+
+#include <TFile.h>
+#include <TTree.h>
 
 #include "MLog.h"
@@ -92 +97 @@
 {
     delete fRun;
+}
+
+Byte_t MReadMarsFile::IsFileValid(const char *name)
+{
+    ifstream fin(name);
+    if (!fin)
+        return 0;
+
+    Char_t c[4];
+    fin.read(c, 4);
+    if (!fin)
+        return 0;
+
+    if (!(c[0]=='r'&& c[1]=='o' && c[2]=='o' && c[3]=='t'))
+        return 0;
+
+    TFile f(name, "READ");
+
+    TTree *t = (TTree*)f.Get("Events");
+    if (!t)
+        return 0;
+
+    // FIXME: Replace numbers by enum! Maybe use bits?
+    if (t->FindBranch("MRawEvtData."))
+        return t->FindBranch("MMcEvt.") ? 2 : 1;
+
+    if (t->FindBranch("MCerPhotEvt."))
+        return t->FindBranch("MMcEvt.") ? 4 : 3;
+
+    return 0;
 }
 

trunk/MagicSoft/Mars/mfileio/MReadMarsFile.h

@@ -24 +24 @@
     ~MReadMarsFile();
 
+    static Byte_t IsFileValid(const char *name);
+
     void SortFiles();
 

trunk/MagicSoft/Mars/mfileio/MReadTree.cc

@@ -157 +157 @@
 }
 
+Byte_t MReadTree::IsFileValid(const char *name)
+{
+    ifstream fin(name);
+    if (!fin)
+        return 0;
+
+    Char_t c[4];
+    fin.read(c, 4);
+    if (!fin)
+        return 0;
+
+    return c[0]=='r'&& c[1]=='o' && c[2]=='o' && c[3]=='t' ? 1 : 0;
+}
+
 // --------------------------------------------------------------------------
 //

trunk/MagicSoft/Mars/mfileio/MReadTree.h

@@ -51 +51 @@
     ~MReadTree();
 
+    static Byte_t IsFileValid(const char *name);
+
     virtual void SortFiles();