JB,
Thank you for the help.
Below is the resulting Blueprint.xml. Note: The reference is optional so the
command will exist even if the service is not running. The command will need to
check for null when using the service.
<command-bundle xmlns="http://karaf.apache.org/xmlns/shell/v1.0.0";>
<command name=“command/doSomething”>
<action class=“com.foo.MyCommand”>
<property name=“myService” ref=“Service”/>
</action>
</command>
</command-bundle>
<reference id=“Service” interface=“com.foo.MyService”
availability="optional"/>
Paul Spencer
On Jan 14, 2014, at 12:04 PM, Jean-Baptiste Onofré <[email protected]> wrote:
> Sorry Paul,
>
> I missed part of your question.
>
> The action class is like a bean, so you use property set on it.
>
> Regards
> JB
>
> On 01/14/2014 05:54 PM, Paul Spencer wrote:
>> Karaf 2.3.3
>>
>> Karaf 2.3.3
>>
>> What is the Blueprint syntax to instantiate and initialize object properties
>> when the command is executed?
>>
>> The XML below will define the command and contains a reference to the
>> interface of the service the command will use. I would like the syntax to
>> instantiate and initialize the property MyService for an MyCommand object
>> when the command is executed by a user.
>>
>> ***
>> * blueprint.xml
>> ***
>> <command-bundle xmlns="http://karaf.apache.org/xmlns/shell/v1.0.0";>
>> <command name=“command/doSomething”>
>> <action class=“com.foo.MyCommand" />
>>
>> </command>
>> </command-bundle>
>>
>> <reference id=“Service” interface=“com.foo.MyService” />
>>
>> ***
>> * MyCommand.java
>> ***
>> package com.foo;
>>
>> import org.apache.felix.gogo.commands.Command;
>> import org.apache.karaf.shell.console.OsgiCommandSupport;
>> import org.slf4j.Logger;
>> import org.slf4j.LoggerFactory;
>>
>> @Command(scope = “command”, name = “doSomething”, description = "Example
>> Command")
>> public class MyCommand extends OsgiCommandSupport {
>> private MyService _myService;
>> private static Logger _logger = LoggerFactory.getLogger(MyCommand.class);
>>
>> protected Object doExecute() throws Exception {
>> _logger.info(“Command ‘command:doSomething’ executed and returned “ +
>> _myService.doSomething());
>> return void;
>> }
>>
>> MyService getMyService() {
>> return _myService;
>> }
>> void setMyService( MyService service) {
>> _myService = service;
>> }
>>
>>
>>
>>
>
> --
> Jean-Baptiste Onofré
> [email protected]
> http://blog.nanthrax.net
> Talend - http://www.talend.com
