A.2. Editing OSGi Config Admin Properties
Overview
This section explains how to use the built-in text editor to edit the property settings associated with a specific persistent ID.
Persistent ID
In the context of the OSGi Config Admin service, a persistent ID (PID) refers to and identifies a set of related properties. In particular, when defining PID property settings in a profile, the properties associated with the
PID persistent ID are defined in the PID.properties resource.
Open the Config Admin properties resource
To start editing the properties associated with the
PID persistent ID, enter the following console command:
JBossFuse:karaf@root> profile-edit --pid PID Profile [Version]
Note
It is also possible to edit PID properties by specifying
--resource PID.properties in the profile-edit command, instead of using the --pid PID option.
Specifying OSGi config admin properties
The text editor opens, showing the contents of the specified profile's
PID.properties resource (which is actually stored in the ZooKeeper registry). To edit the properties, add, modify, or delete lines of the following form:
Property=Value
Example
To edit the properties for the
io.fabric8.hadoop PID in the hadoop-base profile, enter the following console command:
JBossFuse:karaf@root> profile-edit --resource io.fabric8.hadoop.properties hadoop-base 1.0
The text editor starts up, and you should see the following screen in the console window:
Profile:hadoop-base 1.0 L:1 C:1
#
# Copyright (C) Red Hat, Inc.
# http://redhat.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.
#
fs.default.name=hdfs\://localhost\:9000
dfs.replication=1
mapred.job.tracker=localhost\:9001
dfs.name.dir=${karaf.data}/hadoop/dfs/name
dfs.http.address=0.0.0.0\:9002
dfs.data.dir=${karaf.data}/hadoop/dfs/data
dfs.name.edits.dir=${karaf.data}/hadoop/dfs/name
^X Quit ^S Save ^Z Undo ^R Redo ^G Go To ^F Find ^N Next ^P Previous
You might notice that colon characters are escaped in this example (as in
\:). Strictly speaking, it is only necessary to escape a colon if it appears as part of a property name (left hand side of the equals sign), but the profile-edit command automatically escapes all colons when it writes to a resource. When manually editing resources using the text editor, however, you do not need to escape colons in URLs appearing on the right hand side of the equals sign.
Type
^X to quit the text editor and get back to the console prompt.
