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Posted to dev@felix.apache.org by "Sahoo (JIRA)" <ji...@apache.org> on 2010/12/12 06:56:00 UTC
[jira] Created: (FELIX-2724) loadclass command not available until
some other command is added
loadclass command not available until some other command is added
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Key: FELIX-2724
URL: https://issues.apache.org/jira/browse/FELIX-2724
Project: Felix
Issue Type: Bug
Components: Gogo Shell
Affects Versions: gogo-0.6.1
Reporter: Sahoo
ss141213@Sahoo:~/software/felix-framework-3.0.6$ java -jar bin/felix.jar
____________________________
Welcome to Apache Felix Gogo
g! loadclass
gogo: CommandNotFoundException: Command not found: loadclass
g! addcommand b (bundle 0)
g! loadclass
gogo: IllegalArgumentException: Cannot coerce loadclass() to any of [(String)]
As you can see from the above output, first time I tried loadclass command, it was not available, but second time it was. I have only default felix bundles installed.
g! lb
START LEVEL 1
ID|State |Level|Name
0|Active | 0|System Bundle (3.0.6)
1|Active | 1|Apache Felix Bundle Repository (1.6.2)
2|Active | 1|Apache Felix Gogo Command (0.6.1)
3|Active | 1|Apache Felix Gogo Runtime (0.6.1)
4|Active | 1|Apache Felix Gogo Shell (0.6.1)
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[jira] Closed: (FELIX-2724) loadclass command not available until
some other command is added
Posted by "Richard S. Hall (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/FELIX-2724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Richard S. Hall closed FELIX-2724.
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Resolution: Not A Problem
Closing this bug, since I don't think we want Bundle as a standard command in Gogo. Besides, what bundle would loadClass use?
There is a command, called "which" that allows you to see from where a bundle will load a class. Perhaps that will be of interest to you.
> loadclass command not available until some other command is added
> -----------------------------------------------------------------
>
> Key: FELIX-2724
> URL: https://issues.apache.org/jira/browse/FELIX-2724
> Project: Felix
> Issue Type: Bug
> Components: Gogo Shell
> Affects Versions: gogo-0.6.1
> Reporter: Sahoo
>
> ss141213@Sahoo:~/software/felix-framework-3.0.6$ java -jar bin/felix.jar
> ____________________________
> Welcome to Apache Felix Gogo
> g! loadclass
> gogo: CommandNotFoundException: Command not found: loadclass
> g! addcommand b (bundle 0)
> g! loadclass
> gogo: IllegalArgumentException: Cannot coerce loadclass() to any of [(String)]
> As you can see from the above output, first time I tried loadclass command, it was not available, but second time it was. I have only default felix bundles installed.
> g! lb
> START LEVEL 1
> ID|State |Level|Name
> 0|Active | 0|System Bundle (3.0.6)
> 1|Active | 1|Apache Felix Bundle Repository (1.6.2)
> 2|Active | 1|Apache Felix Gogo Command (0.6.1)
> 3|Active | 1|Apache Felix Gogo Runtime (0.6.1)
> 4|Active | 1|Apache Felix Gogo Shell (0.6.1)
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[jira] Commented: (FELIX-2724) loadclass command not available
until some other command is added
Posted by "Derek Baum (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/FELIX-2724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12970591#action_12970591 ]
Derek Baum commented on FELIX-2724:
-----------------------------------
This is the expected behaviour for gogo.
loadClass is a method on Bundle, which is not installed by default.
The 'type' command shows this:
g! type loadclass
type: loadclass not found.
false
The command:
addcommand b (bundle 0)
creates a new command group 'b' and adds all the methods on the System bundle - including loadClass
which explicitly makes the loadclass available, as shown by the 'type' command:
g! type loadclass
loadclass is Class b:loadclass(String)
true
If you want these commands available by default, you can add your own gosh_profile - the default one is embedded in the gogo.shell bundle:
# default gosh_profile
# only read if etc/gosh_profile doesn't exist relative to the System property
# gosh.home or failing that the current directory.
# catch all exceptions from this script to avoid it aborting startup
try {
# ensure gogo commands are found first
SCOPE = gogo:*
# add methods on BundleContext object as commands
#addcommand context ${.context} (${.context} class)
# bug: above invokes (String, Object, String) instead of (String, Object, Class)
addcommand context ${.context}
# add methods on System object as commands
addcommand system ((${.context} bundle 0) loadclass java.lang.System)
# alias to print full stack trace
e = { $exception printStackTrace }
## disable console auto-formatting of each result
# you will then need to explicitly use the 'format' command
# to print the result of commands that don't write to stdout.
#.Gogo.format = false
## disable printing the formatted result of a command into pipelines
#.Format.Pipe = false
# set prompt
prompt = 'g! '
# print welcome message
cat ($0 resolve motd)
} {
echo "$0: ERROR: $exception"
}
You can see this script adds methods on the BundleContext to the context: scope and methods on the System class to the system: scope.
To add your own gosh_profile, put in in etc/gosh_profile relative to the current directory, or set the System property gosh.home and put it in ${posh.home}/etc. I need to improve profile handling, so that something like ~/.gosh/goshrc is read automatically (if it exists) like in bash.
> loadclass command not available until some other command is added
> -----------------------------------------------------------------
>
> Key: FELIX-2724
> URL: https://issues.apache.org/jira/browse/FELIX-2724
> Project: Felix
> Issue Type: Bug
> Components: Gogo Shell
> Affects Versions: gogo-0.6.1
> Reporter: Sahoo
>
> ss141213@Sahoo:~/software/felix-framework-3.0.6$ java -jar bin/felix.jar
> ____________________________
> Welcome to Apache Felix Gogo
> g! loadclass
> gogo: CommandNotFoundException: Command not found: loadclass
> g! addcommand b (bundle 0)
> g! loadclass
> gogo: IllegalArgumentException: Cannot coerce loadclass() to any of [(String)]
> As you can see from the above output, first time I tried loadclass command, it was not available, but second time it was. I have only default felix bundles installed.
> g! lb
> START LEVEL 1
> ID|State |Level|Name
> 0|Active | 0|System Bundle (3.0.6)
> 1|Active | 1|Apache Felix Bundle Repository (1.6.2)
> 2|Active | 1|Apache Felix Gogo Command (0.6.1)
> 3|Active | 1|Apache Felix Gogo Runtime (0.6.1)
> 4|Active | 1|Apache Felix Gogo Shell (0.6.1)
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