Changes between Version 4 and Version 5 of TopDl

Timestamp:

Oct 4, 2012 5:50:20 PM (12 years ago)

Author:

faber

Comment:

--

TopDl

@@ -73 +73 @@
 
 }}}
+
+That file is [attachment:two.xml attached] to this page.
 
 === Substrates ===
@@ -237 +239 @@
 The topdl library is a set of python classes and function s that are [TopdlLibrary fully documented elsewhere].  This section gives a few examples that gives the feel for the library.  Each entity is represented by a class with attributes named and broken down as described above.  There are routines to import and export topologies in topdl as well as to translate between several formats, including ns2 and GENI Rspecs.
 
-The following python generates the example topdl above:
+The following python prints the example topdl above:
 
 {{{
@@ -278 +280 @@
 }}}
 
-
+There are also routines for changing existing topologies.  The following example numbers the computers in a topology by adding a "computer_number" attribute to them and prints the topology in topdl. 
+
+{{{
+#!/usr/bin/env python
+
+import sys
+from deter import topdl
+
+if len(sys.argv) < 2:
+    sys.exit('Usage: %s topdl_file' % sys.argv[0])
+    
+top = topdl.topology_from_xml(filename=sys.argv[1], top='experiment')
+
+for i, e in enumerate(top.elements):
+    if not isinstance(e, topdl.Computer): continue
+    e.set_attribute('computer_number', '%s' % i)
+    
+
+print topdl.topology_to_xml(top, top='experiment')
+
+}}}
+