class Trinidad::Lifecycle::Host::RollingReload
Rolls a new context that replaces the current one on reloads.
Public Class Methods
logger()
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# File lib/trinidad/lifecycle/host/rolling_reload.rb, line 52 def self.logger # log into the same location as context.reload does : Trinidad::Logging::LogFactory.getLog('org.apache.catalina.core.StandardContext') end
new(server)
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# File lib/trinidad/lifecycle/host/rolling_reload.rb, line 8 def initialize(server) @server = server end
Public Instance Methods
reload!(app_holder)
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# File lib/trinidad/lifecycle/host/rolling_reload.rb, line 12 def reload!(app_holder) web_app, old_context = app_holder.web_app, app_holder.context logger = self.class.logger logger.info "Context with name [#{old_context.name}] has started rolling" web_app.reset! # force a new class loader + re-read state (from config) no_host = org.apache.catalina.Host.impl {} # do not add to parent yet new_context = @server.add_web_app(web_app, no_host, false) # Tomcat requires us to have unique names for its containers : new_context.name = "#{old_context.name}-#{java.lang.System.currentTimeMillis}" new_context.add_lifecycle_listener(takeover = Takeover.new(old_context)) app_holder.context = new_context Thread.new do begin logger.debug "Starting a new Context for [#{new_context.path}]" old_context.parent.add_child new_context # NOTE: likely starts! new_context.start unless new_context.state_name =~ /START|STOP|FAILED/i if new_context.state_name =~ /STOP|FAILED/i logger.error("Context with name [#{old_context.name}] failed rolling") takeover.failed!(new_context) else logger.info "Context with name [#{old_context.name}] has completed rolling" end rescue => error e = org.jruby.exceptions.RaiseException.new(error) logger.error("Context with name [#{old_context.name}] failed rolling", e) takeover.failed!(new_context) rescue java.lang.Exception => e logger.error("Context with name [#{old_context.name}] failed rolling", e) takeover.failed!(new_context) ensure app_holder.unlock end end false # not yet reloaded do not release lock end