1#!/usr/bin/env python3 2# 3# Copyright (C) 2009 The Android Open Source Project 4# 5# Licensed under the Apache License, Version 2.0 (the "License"); 6# you may not use this file except in compliance with the License. 7# You may obtain a copy of the License at 8# 9# http://www.apache.org/licenses/LICENSE-2.0 10# 11# Unless required by applicable law or agreed to in writing, software 12# distributed under the License is distributed on an "AS IS" BASIS, 13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14# See the License for the specific language governing permissions and 15# limitations under the License. 16 17""" 18Generate a java class containing constants for each of the event log 19tags in the given input file. 20""" 21 22from io import StringIO 23import argparse 24import os 25import os.path 26import re 27import sys 28 29import event_log_tags 30 31parser = argparse.ArgumentParser(description=__doc__) 32parser.add_argument('-o', dest='output_file') 33parser.add_argument('file') 34args = parser.parse_args() 35 36fn = args.file 37tagfile = event_log_tags.TagFile(fn) 38 39if "java_package" not in tagfile.options: 40 tagfile.AddError("java_package option not specified", linenum=0) 41 42hide = True 43if "javadoc_hide" in tagfile.options: 44 hide = event_log_tags.BooleanFromString(tagfile.options["javadoc_hide"][0]) 45 46if tagfile.errors: 47 for fn, ln, msg in tagfile.errors: 48 print("%s:%d: error: %s" % (fn, ln, msg), file=sys.stderr) 49 sys.exit(1) 50 51buffer = StringIO() 52buffer.write("/* This file is auto-generated. DO NOT MODIFY.\n" 53 " * Source file: %s\n" 54 " */\n\n" % (fn,)) 55 56# .rstrip(";") to avoid an empty top-level statement errorprone error 57buffer.write("package %s;\n\n" % (tagfile.options["java_package"][0].rstrip(";"),)) 58 59basename, _ = os.path.splitext(os.path.basename(fn)) 60 61if hide: 62 buffer.write("/**\n" 63 " * @hide\n" 64 " */\n") 65buffer.write("public class %s {\n" % (basename,)) 66buffer.write(" private %s() { } // don't instantiate\n" % (basename,)) 67 68for t in tagfile.tags: 69 if t.description: 70 buffer.write("\n /** %d %s %s */\n" % (t.tagnum, t.tagname, t.description)) 71 else: 72 buffer.write("\n /** %d %s */\n" % (t.tagnum, t.tagname)) 73 74 buffer.write(" public static final int %s = %d;\n" % 75 (t.tagname.upper(), t.tagnum)) 76 77keywords = frozenset(["abstract", "continue", "for", "new", "switch", "assert", 78 "default", "goto", "package", "synchronized", "boolean", 79 "do", "if", "private", "this", "break", "double", 80 "implements", "protected", "throw", "byte", "else", 81 "import", "public", "throws", "case", "enum", 82 "instanceof", "return", "transient", "catch", "extends", 83 "int", "short", "try", "char", "final", "interface", 84 "static", "void", "class", "finally", "long", "strictfp", 85 "volatile", "const", "float", "native", "super", "while"]) 86 87def javaName(name): 88 out = name[0].lower() + re.sub(r"[^A-Za-z0-9]", "", name.title())[1:] 89 if out in keywords: 90 out += "_" 91 return out 92 93javaTypes = ["ERROR", "int", "long", "String", "Object[]", "float"] 94for t in tagfile.tags: 95 methodName = javaName("write_" + t.tagname) 96 if t.description: 97 fn_args = [arg.strip("() ").split("|") for arg in t.description.split(",")] 98 else: 99 fn_args = [] 100 argTypesNames = ", ".join([javaTypes[int(arg[1])] + " " + javaName(arg[0]) for arg in fn_args]) 101 argNames = "".join([", " + javaName(arg[0]) for arg in fn_args]) 102 buffer.write("\n public static void %s(%s) {" % (methodName, argTypesNames)) 103 buffer.write("\n android.util.EventLog.writeEvent(%s%s);" % (t.tagname.upper(), argNames)) 104 buffer.write("\n }\n") 105 106 107buffer.write("}\n"); 108 109output_dir = os.path.dirname(args.output_file) 110if not os.path.exists(output_dir): 111 os.makedirs(output_dir) 112 113event_log_tags.WriteOutput(args.output_file, buffer) 114