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#!/usr/bin/env python
#
# Copyright (C) 2009 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Usage: java-event-log-tags.py [-o output_file] <input_file> <merged_tags_file>
Generate a java class containing constants for each of the event log
tags in the given input file.
-h to display this usage message and exit.
"""
import cStringIO
import getopt
import os
import os.path
import re
import sys
import event_log_tags
output_file = None
try:
opts, args = getopt.getopt(sys.argv[1:], "ho:")
except getopt.GetoptError, err:
print str(err)
print __doc__
sys.exit(2)
for o, a in opts:
if o == "-h":
print __doc__
sys.exit(2)
elif o == "-o":
output_file = a
else:
print >> sys.stderr, "unhandled option %s" % (o,)
sys.exit(1)
if len(args) != 2:
print "need exactly two input files, not %d" % (len(args),)
print __doc__
sys.exit(1)
fn = args[0]
tagfile = event_log_tags.TagFile(fn)
# Load the merged tag file (which should have numbers assigned for all
# tags. Use the numbers from the merged file to fill in any missing
# numbers from the input file.
merged_fn = args[1]
merged_tagfile = event_log_tags.TagFile(merged_fn)
merged_by_name = dict([(t.tagname, t) for t in merged_tagfile.tags])
for t in tagfile.tags:
if t.tagnum is None:
if t.tagname in merged_by_name:
t.tagnum = merged_by_name[t.tagname].tagnum
else:
# We're building something that's not being included in the
# product, so its tags don't appear in the merged file. Assign
# them all an arbitrary number so we can emit the java and
# compile the (unused) package.
t.tagnum = 999999
if "java_package" not in tagfile.options:
tagfile.AddError("java_package option not specified", linenum=0)
hide = True
if "javadoc_hide" in tagfile.options:
hide = event_log_tags.BooleanFromString(tagfile.options["javadoc_hide"][0])
if tagfile.errors:
for fn, ln, msg in tagfile.errors:
print >> sys.stderr, "%s:%d: error: %s" % (fn, ln, msg)
sys.exit(1)
buffer = cStringIO.StringIO()
buffer.write("/* This file is auto-generated. DO NOT MODIFY.\n"
" * Source file: %s\n"
" */\n\n" % (fn,))
buffer.write("package %s;\n\n" % (tagfile.options["java_package"][0],))
basename, _ = os.path.splitext(os.path.basename(fn))
if hide:
buffer.write("/**\n"
" * @hide\n"
" */\n")
buffer.write("public class %s {\n" % (basename,))
buffer.write(" private %s() { } // don't instantiate\n" % (basename,))
for t in tagfile.tags:
if t.description:
buffer.write("\n /** %d %s %s */\n" % (t.tagnum, t.tagname, t.description))
else:
buffer.write("\n /** %d %s */\n" % (t.tagnum, t.tagname))
buffer.write(" public static final int %s = %d;\n" %
(t.tagname.upper(), t.tagnum))
keywords = frozenset(["abstract", "continue", "for", "new", "switch", "assert",
"default", "goto", "package", "synchronized", "boolean",
"do", "if", "private", "this", "break", "double",
"implements", "protected", "throw", "byte", "else",
"import", "public", "throws", "case", "enum",
"instanceof", "return", "transient", "catch", "extends",
"int", "short", "try", "char", "final", "interface",
"static", "void", "class", "finally", "long", "strictfp",
"volatile", "const", "float", "native", "super", "while"])
def javaName(name):
out = name[0].lower() + re.sub(r"[^A-Za-z0-9]", "", name.title())[1:]
if out in keywords:
out += "_"
return out
javaTypes = ["ERROR", "int", "long", "String", "Object[]"]
for t in tagfile.tags:
methodName = javaName("write_" + t.tagname)
if t.description:
args = [arg.strip("() ").split("|") for arg in t.description.split(",")]
else:
args = []
argTypesNames = ", ".join([javaTypes[int(arg[1])] + " " + javaName(arg[0]) for arg in args])
argNames = "".join([", " + javaName(arg[0]) for arg in args])
buffer.write("\n public static void %s(%s) {" % (methodName, argTypesNames))
buffer.write("\n android.util.EventLog.writeEvent(%s%s);" % (t.tagname.upper(), argNames))
buffer.write("\n }\n")
buffer.write("}\n");
output_dir = os.path.dirname(output_file)
if not os.path.exists(output_dir):
os.makedirs(output_dir)
event_log_tags.WriteOutput(output_file, buffer)
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