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/*
* Jitsi, the OpenSource Java VoIP and Instant Messaging client.
*
* Copyright @ 2015 Atlassian Pty Ltd
*
* 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.
*/
package net.java.sip.communicator.plugin.update;
import java.io.*;
import java.util.*;
import net.java.sip.communicator.util.*;
import org.jitsi.service.resources.*;
/**
* Implements methods to facilitate dealing with resources in the update
* plug-in.
*
* @author Yana Stamcheva
* @author Lyubomir Marinov
*/
public class Resources
{
/**
* The <tt>Logger</tt> used by the <tt>Resources</tt> class for logging
* output.
*/
private static Logger logger = Logger.getLogger(Resources.class);
/**
* The name of the configuration file of the update plug-in.
*/
private static final String UPDATE_CONFIGURATION_FILE
= "update-location.properties";
/**
* The <tt>ResourceManagementService</tt> registered in the
* <tt>BundleContext</tt> of the update plug-in.
*/
private static ResourceManagementService resources;
/**
* The properties found in the configuration file of the update plug-in.
*/
private static Properties updateConfiguration;
/**
* Gets the <tt>ResourceManagementService</tt> registered in the
* <tt>BundleContext</tt> of the update plug-in.
*
* @return the <tt>ResourceManagementService</tt> (if any) registered in the
* <tt>BundleContext</tt> of the update plug-in
*/
public static ResourceManagementService getResources()
{
if (resources == null)
{
resources
= ServiceUtils.getService(
UpdateActivator.bundleContext,
ResourceManagementService.class);
}
return resources;
}
/**
* Gets a <tt>String</tt> value associated with a specific key in the
* configuration file of the update plug-in.
*
* @param key the key to get the associated <tt>String</tt> value of
* @return the <tt>String</tt> value (if any) associated with the specified
* <tt>key</tt> in the configuration file of the update plug-in
*/
public static String getUpdateConfigurationString(String key)
{
if (updateConfiguration == null)
{
updateConfiguration = new Properties();
File updateConfigurationFile = new File(UPDATE_CONFIGURATION_FILE);
if (updateConfigurationFile.exists())
{
InputStream updateConfigurationInputStream = null;
try
{
updateConfigurationInputStream
= new FileInputStream(updateConfigurationFile);
updateConfiguration.load(updateConfigurationInputStream);
}
catch (IOException ioe)
{
logger.error(
"Could not load the configuration file of the update"
+ " plug-in.",
ioe);
}
finally
{
if (updateConfigurationInputStream != null)
{
try
{
updateConfigurationInputStream.close();
}
catch (IOException ioe)
{
/*
* Ignore it because there is nothing really to be
* done in such a scenario.
*/
}
}
}
}
else
{
if (logger.isInfoEnabled())
logger.info(
"No configuration file specified for the update"
+ " plug-in.");
}
}
return updateConfiguration.getProperty(key);
}
}
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