diff options
Diffstat (limited to 'qpid/cpp/managementgen/generate.py')
| -rwxr-xr-x | qpid/cpp/managementgen/generate.py | 164 |
1 files changed, 94 insertions, 70 deletions
diff --git a/qpid/cpp/managementgen/generate.py b/qpid/cpp/managementgen/generate.py index 1d0987e685..4c042bd3f6 100755 --- a/qpid/cpp/managementgen/generate.py +++ b/qpid/cpp/managementgen/generate.py @@ -27,13 +27,18 @@ import os import os.path import filecmp -#===================================================================================== -# -#===================================================================================== class Template: + """ + Expandable File Template - This class is instantiated each time a + template is to be expanded. It is instantiated with the "filename" + which is the full path to the template file and the "handler" which + is an object that is responsible for storing variables (setVariable) + and expanding tags (substHandler). + """ def __init__ (self, filename, handler): self.filename = filename self.handler = handler + self.handler.initExpansion () def expandLine (self, line, stream, object): cursor = 0 @@ -47,29 +52,78 @@ class Template: stream.write (line[cursor:sub]) cursor = subend + 2 - tag = line[sub:subend] - dotPos = tag.find (".") - if dotPos == -1: - raise ValueError ("Invalid tag: %s" % tag) - tagObject = tag[7:dotPos] - tagName = tag[dotPos + 1:len (tag)] - - self.handler (object, stream, tagObject, tagName) + tag = line[sub:subend] + equalPos = tag.find ("=") + if equalPos == -1: + dotPos = tag.find (".") + if dotPos == -1: + raise ValueError ("Invalid tag: %s" % tag) + tagObject = tag[7:dotPos] + tagName = tag[dotPos + 1:len (tag)] + self.handler.substHandler (object, stream, tagObject, tagName) + else: + tagKey = tag[7:equalPos] + tagVal = tag[equalPos + 1:len (tag)] + self.handler.setVariable (tagKey, tagVal) def expand (self, object): fd = open (self.filename) stream = StringIO () - + for line in fd: self.expandLine (line, stream, object) fd.close () return stream -#===================================================================================== -# -#===================================================================================== + +class Makefile: + """ Object representing a makefile fragment """ + def __init__ (self, filelists, templateFiles): + self.filelists = filelists + self.templateFiles = templateFiles + + def genGenSources (self, stream, variables): + mdir = variables["mgenDir"] + sdir = variables["specDir"] + stream.write (mdir + "/main.py \\\n") + stream.write (" " + mdir + "/generate.py \\\n") + stream.write (" " + mdir + "/schema.py \\\n") + stream.write (" " + sdir + "/management-types.xml \\\n") + stream.write (" " + sdir + "/management-schema.xml \\\n") + first = True + for template in self.templateFiles: + if first: + first = False + stream.write (" ") + else: + stream.write (" \\\n ") + stream.write (mdir + "/templates/" + template) + + def genGenCppFiles (self, stream, variables): + first = True + for file in self.filelists["cpp"]: + if first: + first = False + else: + stream.write (" \\\n ") + stream.write (file) + + def genGenHFiles (self, stream, variables): + first = True + for file in self.filelists["h"]: + if first: + first = False + else: + stream.write (" \\\n ") + stream.write (file) + + class Generator: + """ + This class manages code generation using template files. It is instantiated + once for an entire code generation session. + """ def createPath (self, path): exists = True try: @@ -99,10 +153,12 @@ class Generator: self.filelists["cpp"] = [] self.filelists["mk"] = [] self.templateFiles = [] + self.variables = {} - def genDisclaimer (self, stream): - stream.write ("// This source file was created by a code generator.\n") - stream.write ("// Please do not edit.") + def genDisclaimer (self, stream, variables): + prefix = variables["commentPrefix"] + stream.write (prefix + " This source file was created by a code generator.\n") + stream.write (prefix + " Please do not edit.") def fileExt (self, path): dot = path.rfind (".") @@ -150,29 +206,35 @@ class Generator: path = self.dest + "Args" + method.getFullName () + extension return path + def initExpansion (self): + self.variables = {} + def substHandler (self, object, stream, tagObject, tag): if tagObject == "Root": obj = "self" else: obj = "object" # MUST be the same as the 2nd formal parameter - call = obj + ".gen" + tag + "(stream)" + call = obj + ".gen" + tag + "(stream, self.variables)" eval (call) - def makeClassFiles (self, templateFile, schema): + def setVariable (self, key, value): + self.variables[key] = value + + def makeClassFiles (self, templateFile, schema, force=False): """ Generate an expanded template per schema class """ classes = schema.getClasses () - template = Template (self.input + templateFile, self.substHandler) + template = Template (self.input + templateFile, self) self.templateFiles.append (templateFile) for _class in classes: target = self.targetClassFile (_class, templateFile) stream = template.expand (_class) - self.writeIfChanged (stream, target) + self.writeIfChanged (stream, target, force) - def makeMethodFiles (self, templateFile, schema): + def makeMethodFiles (self, templateFile, schema, force=False): """ Generate an expanded template per method-with-arguments """ classes = schema.getClasses () - template = Template (self.input + templateFile, self.substHandler) + template = Template (self.input + templateFile, self) self.templateFiles.append (templateFile) for _class in classes: methods = _class.getMethods () @@ -180,50 +242,12 @@ class Generator: if method.getArgCount () > 0: target = self.targetMethodFile (method, templateFile) stream = template.expand (method) - self.writeIfChanged (stream, target) + self.writeIfChanged (stream, target, force) - def makeMakeFile (self, target): - stream = StringIO () - stream.write ("# Generated makefile fragment.\n\n") - stream.write ("mgen_generator=$(mgen_dir)/main.py \\\n") - stream.write (" $(mgen_dir)/generate.py \\\n") - stream.write (" $(mgen_dir)/schema.py \\\n") - stream.write (" $(top_srcdir)/../specs/management-types.xml \\\n") - stream.write (" $(top_srcdir)/../specs/management-schema.xml \\\n ") - first = 1 - for template in self.templateFiles: - if first == 1: - first = 0 - else: - stream.write (" \\\n ") - stream.write ("$(mgen_dir)/templates/" + template) - - stream.write ("\n\nmgen_broker_cpp=") - first = 1 - for file in self.filelists["cpp"]: - if first == 1: - first = 0 - else: - stream.write (" \\\n ") - stream.write (file.replace ("../src", ".")) - stream.write ("\n\n") - - stream.write ("# Header file install rules.\n") - stream.write ("qpid_managementdir = $(includedir)/qpid/management\n") - stream.write ("dist_qpid_management_HEADERS = ") - first = 1 - for file in self.filelists["h"]: - if first == 1: - first = 0 - else: - stream.write (" \\\n ") - stream.write (file.replace ("../src", ".")) - stream.write ("\n\n") - - stream.write ("if GENERATE\n") - stream.write ("$(srcdir)/managementgen.mk: $(mgen_generator)\n") - stream.write ("\t$(mgen_cmd)\n") - stream.write ("\n$(mgen_generator):\n") - stream.write ("endif\n") - - self.writeIfChanged (stream, target, force=True) + def makeSingleFile (self, templateFile, target, force=False): + """ Generate a single expanded template """ + makefile = Makefile (self.filelists, self.templateFiles) + template = Template (self.input + templateFile, self) + self.templateFiles.append (templateFile) + stream = template.expand (makefile) + self.writeIfChanged (stream, target, force) |