Re: Merlin 3.2.5 --Trying to use http proxy for downloading repositor y...( Behind the firewall)

Mon, 12 Jan 2004 09:56:28 -0800

[EMAIL PROTECTED] wrote:

Hello,

In Merlin 3.2.5, I have proxy information ( to download the repository jars)
defined in the "avalon.properties" file. There is a copy of this file in
AVALON_HOME directory, and the file looks like below:

avalon.repository.cache=E:\download\maven\repository
avalon.repository.hosts=http://www.ibiblio.org/maven,
http://www.ibiblio.org/merlin,http://phoenixjms.sourceforge.net/repository/,
http://surendrapc.internal.gxs.com/download/maven/repository/,http://bennett
pc.internal.gxs.com:8080/repository
avalon.repository.proxy.host=ghqproxy1.is.ge.com
avalon.repository.proxy.port=80

Some points to take into consideration concerning the repository bootstrap process ...

  1. repository has a micro bootstrap repository impl without
     proxy support - this repository is defined by
     avalon.repository.cache and avalon.repository.hosts

The important thing to remember here is that cache and hosts are specific to the loading of the resources needed to establish the full repository implementation. Within Merlin, the system uses this bootstrapping cache to locate the merlin system resources. Normally these resources are locally available and as such you don't need to declare a hosts property. Alternatively you can declare a host using a file url.

  2. the repository bootstrapper loads the full repository
     implementation as assigns this to the initial context supplied
     to any factory (e.g. the merlin bootstrapping system)

  3. merlin creates a second application repository using the
     <repository> tag contained in the kernel.xml file. This
     repository implementation will be configured in accordance
     with the proxy setting declared within the <repository>
     element

  4. however, the JVM uses system properties to configure proxy
     settings - so setting the initial repository proxy settings
     together with proxy setting in the kernel is potentially
     problematic

I would recommend setting avalon.repository.hosts to nothing, and remove the proxy setting in the property file.

E.g.:

avalon.repository.hosts =

The declare any proxy setting at the level of the kernel.

I am running the application behind the firewall hence I must go through
proxy to download some jars. I can access repository sites via browser (
means proxy server is working) fine. I am afraid somehow, merlin is not
picking up the proxy information from the "avalon.properties" file. In the
3.0 version of merlin, I used to specify the "proxy" information in
"kernel.xml" and it used to work fine but apparently that has changed and
now proxy information needs to stored in the "avalon.properties" file.


Yep.

We moved the repository system from an internal facility to an external facility that loads merlin.

Here is what I see when I Merlin command ( to me it appears like proxy
related error":


<snip>


Am I missing something, Is "avalon.properties" file not being picked up or
is there any syntax error?

Make sure you use the -info command line switch and check the following:

  ${avalon.repository.cache} <------ the local bootstrap cache
  ${avalon.repository.hosts} <------ the bootstrap hosts

Here is an example of running the hello remotely with the hosts disabled on the bootstrap phase:

[INFO ] (kernel): Merlin Kernel Environment Listing

  ${user.dir} == D:\dev\3.4\avalon\merlin\platform\tutorials\hello
  ${user.home} == C:\WINNT\Profiles\mcconnell
  ${avalon.repository.cache} == D:\merlin\system
  ${avalon.repository.hosts} ==
  ${merlin.repository} == C:\WINNT\Profiles\mcconnell\.avalon\repository

And at the end of the listing we see:

${merlin.deployment} == http://dpml.net/merlin/tutorial/blocks/hello.block

This works because the kernel is configuration with the remote repository which are assigned to the application repository.

Hope this helps.

Stephen.


Any help would be highly appreciated.

Surendra


--
Surendra Kashyap
Application Component Engineering
Global Exchange Services, Inc.
7101, Executive Center Drive
Brentwood, TN - 37027




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