messageHandler.coffee
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#-------------------------------------------------------------------------------
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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.
#-------------------------------------------------------------------------------
utils = require './utils'
channelManager = require './channelManager'
serviceManager = require './serviceManager'
#-------------------------------------------------------------------------------
utils.registerClass class MessageHandler
#---------------------------------------------------------------------------
handleMessage: (channel, message) ->
@_serviceMethodInvoker(channel, message.interface, message.method, message.args)
#---------------------------------------------------------------------------
_serviceMethodInvoker: (channel, intfName, method, args) ->
methodSignature = "#{intfName}.#{method}()"
# utils.logVerbose "MessageHandler._serviceMethodInvoker(#{methodSignature})"
service = serviceManager.get(intfName)
if !service
return @_redirectToConnections(channel, intfName, method, args)
args = args.slice()
args.unshift channel
try
service[method].apply(service, args)
catch e
utils.log "error running service method #{methodSignature}: #{e}"
utils.log "stack:\n#{e.stack}"
#---------------------------------------------------------------------------
_redirectToConnections: (channel, intfName, method, args) ->
# utils.logVerbose "MessageHandler._redirectToConnections(#{channel.name}, #{intfName}, #{method})"
for connection in channel.connections
connection.sendMessage(intfName, method, args...)
#-------------------------------------------------------------------------------
module.exports = new MessageHandler