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A.3. Editing Other Resources

Overview
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In addition to agent properties and PID properties, the built-in text editor makes it possible for you edit any resource associated with a profile. This is particularly useful, if you need to store additional configuration files in a profile. The extra configuration files can be stored as profile resources (which are stored in a Fabric server's built-in Git repository) and then can be accessed by your applications at run time.

Creating and editing an arbitrary resource
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You can create and edit arbitrary profile resources using the following command syntax: 
JBossFuse:karaf@root> profile-edit --resource Resource Profile [Version]
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Where Resource is the name of the profile resource you want to edit. If Resource does not already exist, it will be created.

broker.xml example
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For example, the mq-base profile has the broker.xml resource, which stores the contents of an Apache ActiveMQ broker configuration file. To edit the broker.xml resource, enter the following console command: 
JBossFuse:karaf@root> profile-edit --resource broker.xml mq-base 1.0
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The text editor starts up, and you should see the following screen in the console window: 
Profile:mq-base 1.0                                                                       L:1 C:1
<!--
  Copyright (C) FuseSource, Inc.
  http://fusesource.com

  Licensed 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.
  -->
<beans
  xmlns="http://www.springframework.org/schema/beans"
  xmlns:amq="http://activemq.apache.org/schema/core"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
  http://activemq.apache.org/schema/core http://activemq.apache.org/schema/core/activemq-core.xsd">

    <!-- Allows us to use system properties and fabric as variables in this configuration file -->
    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="properties">
            <bean class="io.fabric8.mq.fabric.ConfigurationProperties"/>
        </property>

      ^X Quit    ^S Save    ^Z Undo    ^R Redo    ^G Go To    ^F Find    ^N Next    ^P Previous
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Any changes you make to this file will take effect whenever the broker restarts.
Type ^X to quit the text editor and get back to the console prompt.

Referencing a profile resource
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In order to use an arbitrary profile resource, you must be able to reference it. You can use the profile URL to access resources stored under the current profile or parent profile. It has the following format: profile:ResourceName A key characteristic of the profile URL is that the location of a resource can change dynamically at run time, as follows:
  • The profile URL handler first tries to find the named resource,ResourceName, in the current version of the current profile (where the current version is a property of the container in which the profile is running).
  • If the specified resource is not found under the current profile, the profile URL tries to find the resource in the current version of the parent profile.
For example, the default profile provides the jetty.xml resource and this resource is accessed by setting the 
org.ops4j.pax.web.config.url=${profile:jetty.xml}
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