From 01a6e567a20096f6033cc603667f4e900d2a44c3 Mon Sep 17 00:00:00 2001
From: Chris McDonough <chrism@agendaless.com>
Date: Fri, 26 Sep 2008 06:42:53 +0000
Subject: Move to Chameleon.

---
 repoze/bfg/template.py | 151 +++++--------------------------------------------
 1 file changed, 13 insertions(+), 138 deletions(-)

(limited to 'repoze/bfg/template.py')

diff --git a/repoze/bfg/template.py b/repoze/bfg/template.py
index e501b2592..2f3017bd6 100644
--- a/repoze/bfg/template.py
+++ b/repoze/bfg/template.py
@@ -1,138 +1,13 @@
-import os
-
-from webob import Response
-
-from zope.component import queryUtility
-from zope.component.interfaces import ComponentLookupError
-from zope.component import getSiteManager
-
-from zope.interface import classProvides
-from zope.interface import implements
-
-from repoze.bfg.path import caller_path
-from repoze.bfg.interfaces import ITemplateFactory
-from repoze.bfg.interfaces import ITemplate
-from repoze.bfg.interfaces import INodeTemplate
-from repoze.bfg.interfaces import ISettings
-
-class Z3CPTTemplateFactory(object):
-    classProvides(ITemplateFactory)
-    implements(ITemplate)
-
-    def __init__(self, path, auto_reload=False):
-        try:
-            from z3c.pt import PageTempateFile
-        except ImportError:
-            # after 1.0a7
-            from z3c.pt.pagetemplate import PageTemplateFile
-        try:
-            self.template = PageTemplateFile(path, auto_reload=auto_reload)
-        except TypeError:
-            # z3c.pt before 1.0
-            self.template = PageTemplateFile(path)
-
-    def __call__(self, **kw):
-        result = self.template.render(**kw)
-        return result
-
-class XSLTemplateFactory(object):
-    classProvides(ITemplateFactory)
-    implements(INodeTemplate)
-
-    def __init__(self, path, auto_reload=False):
-        self.path = path
-        self.auto_reload = auto_reload
-
-    def __call__(self, node, **kw):
-        processor = get_processor(self.path, self.auto_reload)
-        result = str(processor(node, **kw))
-        return result
-
-# Manage XSLT processors on a per-thread basis
-import threading
-from lxml import etree
-xslt_pool = threading.local()
-def get_processor(xslt_fn, auto_reload=False):
-    if not auto_reload:
-        try:
-            return xslt_pool.processors[xslt_fn]
-        except AttributeError:
-            xslt_pool.processors = {}
-        except KeyError:
-            pass
-
-    # Make a processor and add it to the pool
-    source = etree.ElementTree(file=xslt_fn)
-    proc = etree.XSLT(source)
-    xslt_pool.processors[xslt_fn] = proc
-    return proc
-
-def registerTemplate(type, template, path):
-    try:
-        sm = getSiteManager()
-    except ComponentLookupError:
-        pass
-    else:
-        sm.registerUtility(template, type, name=path)
-
-def _get_template(path, **kw):
-    # XXX use pkg_resources
-    template = queryUtility(ITemplate, path)
-
-    if template is None:
-        if not os.path.exists(path):
-            raise ValueError('Missing template file: %s' % path)
-        settings = queryUtility(ISettings)
-        auto_reload = settings and settings.reload_templates
-        template = Z3CPTTemplateFactory(path, auto_reload)
-        registerTemplate(ITemplate, template, path)
-
-    return template
-
-def get_template(path):
-    """ Return a z3c.pt template object at the package-relative path
-    (may also be absolute) """
-    path = caller_path(path)
-    return _get_template(path).template
-
-def render_template(path, **kw):
-    """ Render a z3c.pt (ZPT) template at the package-relative path
-    (may also be absolute) using the kwargs in ``*kw`` as top-level
-    names and return a string. """
-    path = caller_path(path)
-    template = get_template(path)
-    return template(**kw)
-
-def render_template_to_response(path, **kw):
-    """ Render a z3c.pt (ZPT) template at the package-relative path
-    (may also be absolute) using the kwargs in ``*kw`` as top-level
-    names and return a Response object. """
-    path = caller_path(path)
-    result = render_template(path, **kw)
-    return Response(result)
-
-def render_transform(path, node, **kw):
-    """ Render a XSL template at the package-relative path (may also
-    be absolute) using the kwargs in ``*kw`` as top-level names and
-    return a string."""
-    # Render using XSLT
-    path = caller_path(path)
-
-    template = queryUtility(INodeTemplate, path)
-    if template is None:
-        if not os.path.exists(path):
-            raise ValueError('Missing template file: %s' % path)
-        template = XSLTemplateFactory(path)
-        registerTemplate(INodeTemplate, template, path)
-
-    return template(node, **kw)
-
-def render_transform_to_response(path, node, **kw):
-    """ Render a XSL template at the package-relative path (may also
-    be absolute) using the kwargs in ``*kw`` as top-level names and
-    return a Response object."""
-    path = caller_path(path)
-    result = render_transform(path, node, **kw)
-    return Response(result)
-
-    
+# The definitions in this module are import aliases for backwards
+# compatibility; there are no plans to make this module itself go
+# away, but the ``get_template``, ``render_template``, and
+# ``render_template_to_response`` APIs should be imported from
+# ``repoze.bfg.chameleon_zpt`` in the future for optimum correctness,
+# while the ``render_transform`` and ``render_transform_to_response``
+# APIs should be imported from ``repoze.bfg.xsl``.
+
+from repoze.bfg.chameleon_zpt import get_template
+from repoze.bfg.chameleon_zpt import render_template
+from repoze.bfg.chameleon_zpt import render_template_to_response
+from repoze.bfg.xslt import render_transform
+from repoze.bfg.xslt import render_transform_to_response
-- 
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