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Contents
#
# Copyright 2011 Red Hat, Inc.
#
# 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 loglicable 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.
#
module Backstage
class Log
include Resource
attr_reader :file_path
LOG_GLOB = "*log"
class << self
def to_hash_attributes
super + [:name, :file_path, :size]
end
def all(log_dir = nil)
log_dir ||= Backstage.jboss_log_dir
Dir.glob("#{log_dir}/#{LOG_GLOB}").collect do |path|
Log.new( File.expand_path( path ) )
end.sort_by(&:name)
end
alias_method :find, :new
end
def initialize(file_path)
@file_path = file_path
end
alias_method :full_name, :file_path
def name
File.basename( file_path )
end
def size
File.size( file_path )
end
def tail(options)
offset = (options['offset'] || -1000).to_i
File.open(@file_path, 'r') do |file|
# Set offset to the beginning or end of the file if
# the value passed in is less than or greather than
# the min/max allowed
if offset.abs > file.stat.size
offset = offset < 0 ? 0 : file.stat.size
end
if offset < 0
file.seek(offset, IO::SEEK_END)
file.readline # Advance to the next entire line
else
file.seek(offset)
end
lines = []
until file.eof? do
lines << file.readline
end
offset = file.pos
{ :offset => offset, :lines => lines.compact }
end
end
end
end
Version data entries
25 entries across 25 versions & 1 rubygems