#!/usr/bin/env ruby
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require 'fileutils'
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#
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# Automate code replacements using regular expressions
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#
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# To define a new replacement, add a new constant like VALIDATOR.
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#
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# It should be a ruby Hash with three mandatory keys and one optional key:
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#
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# :dirs => a list of directory to run replacements. All subdirs are processed.
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# :extensions => a list of file extensions. Only file with these extensions are processed.
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# :replacements => a list of replacements, lines are processed 2 by 2
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# - first line gives the pattern to replace, as a ruby regexp (see http://rubular.com/ for help and tool)
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# - second line gives the replacement string, using \1, \2, ... to insert matching groups. This is a string,
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# use simple quote if no special char is inserted, or use double quote if using special char like \n
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# Don't forget to put a comma at end of each line, this is the array element separator.
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# It is ok to leave a new line to separate each pair of line for readability.
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# It is ok to use a comment in the array (use # as first non blank character of line).
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#
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# The optional key is :stopwords => a list of stopword. If any word in this list appears in a file name, the file
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# is not processed. Use it to exclude some files or directory that must not be processed.
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#
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# Once you have define your replacement, add the constant in REPLACEMENTS array. it will be taken into account when
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# running the program (run it at root of project) with command: ./replace.rb
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#
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class Replace
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# All directories that contains java code
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JAVA_DIRS = ["src/server", "src/quicksetup", "src/ads", "src/guitools", "tests/unit-tests-testng/src"]
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# Replacement for Validator
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# Modify 88 files, for a total of 227 replacements - leaves 21 compilation errors
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VALIDATOR = {
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:dirs => JAVA_DIRS,
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:extensions => ["java"],
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:replacements =>
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[
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/import org.opends.server.util.\*;/,
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"import org.opends.server.util.*;\nimport org.forgerock.util.Reject;",
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/import static org.opends.server.util.Validator.ensureNotNull;/,
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'import static org.forgerock.util.Reject.ifNull;',
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/import static org.opends.server.util.Validator.ensureTrue;/,
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'import static org.forgerock.util.Reject.ifFalse;',
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/import static org.opends.server.util.Validator.\*;/,
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'import static org.forgerock.util.Reject.*;',
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/import org.opends.server.util.Validator;/,
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'import org.forgerock.util.Reject;',
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/(Validator\.| )ensureNotNull\((.*)$/,
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'\1ifNull(\2',
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/(Validator\.| )ensureTrue\((.*)$/,
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'\1ifFalse(\2',
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/ Validator\./,
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' Reject.'
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]
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}
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# Replacement for messages
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# Modify 1052 files, for a total of 2366 replacements - leaves 10274 compilation errors mostly due to generated messages
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MESSAGES = {
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:dirs => JAVA_DIRS,
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:extensions => ["java"],
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:replacements =>
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[
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/import org.opends.messages.Message;/,
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'import org.forgerock.i18n.LocalizableMessage;',
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/([ <(])Message([ >)(.]|$)/,
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'\1LocalizableMessage\2',
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/import org.opends.messages.MessageBuilder;/,
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'import org.forgerock.i18n.LocalizableMessageBuilder;',
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/([ <(])MessageBuilder([ >)(.]|$)/,
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'\1LocalizableMessageBuilder\2'
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]
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}
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# Replacement for types
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# Modify 688 files, for a total of 783 replacements - leaves 7605 compilation errors
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TYPES = {
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:dirs => JAVA_DIRS,
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:extensions => ["java"],
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:replacements =>
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[
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/import org.opends.server.types.(DN|RDN|Attribute|ByteString|Entry|ResultCode);/,
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'import org.forgerock.opendj.ldap.\1;',
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/import org.opends.server.(types|api).(AttributeType|MatchingRule);/,
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'import org.forgerock.opendj.ldap.schema.\2;',
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]
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}
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# Replacement for exceptions
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# Modify 36 files, for a total of 134 replacements - leaves 1277 compilation errors but mostly from generated config
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EXCEPTIONS = {
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:dirs => JAVA_DIRS,
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:extensions => ["java"],
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:replacements =>
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[
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/import org.opends.server.admin.client.AuthorizationException;/,
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'import org.forgerock.opendj.ldap.ErrorResultException;',
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/\bAuthorizationException\b/,
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'ErrorResultException',
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/import org.opends.server.admin.client.CommunicationException;\n/,
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'',
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/throws CommunicationException\b, /,
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'throws ',
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/, CommunicationException\b(, )?/,
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'\1',
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/\bCommunicationException\b/,
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'ErrorResultException',
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]
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}
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# Replacement for loggers
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# Modify 454 files, for a total of 2427 replacements - leaves 72 compilation errors
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# TODO: add I18N loggers
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LOGGERS = {
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:dirs => JAVA_DIRS,
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:stopwords => ['src/server/org/opends/server/loggers', 'DebugLogPublisher'],
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:extensions => ["java"],
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:replacements =>
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[
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/import org.opends.server.loggers.debug.DebugTracer;/,
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"import org.slf4j.Logger;\nimport org.slf4j.LoggerFactory;",
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/import java.util.logging.Logger;/,
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"import org.slf4j.Logger;\nimport org.slf4j.LoggerFactory;",
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/import java.util.logging.Level;\n/,
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'',
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/import org.opends.server.types.DebugLogLevel;\n/,
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'',
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/import (static )?org.opends.server.loggers.debug.DebugLogger.*;\n/,
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'',
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/DebugTracer TRACER = (DebugLogger.)?getTracer\(\)/,
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"Logger debugLogger = LoggerFactory.getLogger({CLASSNAME}.class)",
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/^\s*\/\*\*\n.*The tracer object for the debug logger.\n\s*\*\/$\n/,
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'',
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/^\s*\/\/\s*The tracer object for the debug logger.$\n/,
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'',
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/if \(debugEnabled\(\)\)\s*{\s* TRACER.debugCaught\(DebugLogLevel.ERROR, (\b.*\b)\);\s*\n\s*}$/,
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'debugLogger.trace("Error", \1);',
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/TRACER\.debugCaught\(DebugLogLevel.ERROR, (\b.*\b)\);/,
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'debugLogger.trace("Error", \1);',
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/TRACER.debug[^(]+\(/,
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'debugLogger.trace(',
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/debugLogger.trace\(DebugLogLevel.\b\w+\b, ?/,
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'debugLogger.trace(',
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/debugLogger.trace\(e\)/,
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'debugLogger.trace("Error", e)',
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/(DebugLogger\.|\b)debugEnabled\(\)/,
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'debugLogger.isTraceEnabled()',
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/(LOG|logger).log\((Level.)?WARNING, ?/,
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'\1.warn(',
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/(LOG|logger).log\((Level.)?CONFIG, ?/,
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'\1.info(',
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/(LOG|logger).log\((Level.)?INFO, ?/,
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'\1.debug(',
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/(LOG|logger).log\((Level.)?SEVERE, ?/,
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'\1.error(',
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/(LOG|logger).log\((Level.)?FINE, ?/,
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'\1.trace(',
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/Logger.getLogger\((\n\s+)?(\b\w+\b).class.getName\(\)\);/,
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'LoggerFactory.getLogger(\2.class);',
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]
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}
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# List of replacements to run
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REPLACEMENTS = [ VALIDATOR ]
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#REPLACEMENTS = [ VALIDATOR, MESSAGES, TYPES, EXCEPTIONS, LOGGERS ]
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# Run replacements
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def run
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REPLACEMENTS.each { |repl|
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puts "Replacing " + Replace.constants.find{ |name| Replace.const_get(name)==repl }.to_s
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stopwords = repl[:stopwords] || ["--nostopword--"]
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replace_dirs(repl[:replacements], repl[:dirs], stopwords, repl[:extensions])
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}
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end
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def replace_dirs(replacements, dirs, stopwords, extensions)
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count_files = 0
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count_total = 0
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dirs.each { |directory|
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files = files_under_directory(directory, extensions)
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files.each { |file|
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exclude_file = stopwords.any? { |stopword| file.include?(stopword) }
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next if exclude_file
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count = replace_file(file, replacements)
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if count > 0
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count_files += 1
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count_total += count
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end
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}
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}
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puts "Replaced in #{count_files} files, for a total of #{count_total} replacements"
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end
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def replace_file(file, replacements)
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count = 0
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File.open(file) { |source|
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contents = source.read
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(0..replacements.size-1).step(2).each { |index|
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pattern, replace = replacements[index], replacements[index+1]
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replace = replace.gsub('{CLASSNAME}', classname(file))
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is_replaced = contents.gsub!(pattern, replace)
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if is_replaced then count += 1 end
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}
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File.open(file + ".copy", "w+") { |f| f.write(contents) }
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}
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FileUtils.mv(file + ".copy", file, :verbose => false)
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count
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end
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def classname(file)
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name = file.gsub(/.*\/(.*).java$/, '\1')
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if name.nil? then '' else name end
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end
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def files_under_directory(directory, extensions)
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Dir[directory + '/**/*.{' + extensions.join(",") + '}']
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end
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end
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# Launch replacement
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Replace.new.run
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