/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.ace.deployment.task;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import org.osgi.framework.Version;
import org.osgi.service.log.LogService;
/**
* Implementation of the <code>Updater</code> interface that updates software configurations by using the
* <code>DeploymentService</code> to determine the current local version and to actually install new versions.
*/
public class DeploymentUpdateTask extends DeploymentTaskBase implements Runnable {
/**
* When run a check is made if a higher version is available on the remote. If so, an attempt is made to install
* this new version.
*/
public void run() {
try {
String gatewayID = m_identification.getID();
URL host = m_discovery.discover();
Version highestLocalVersion = getHighestLocalVersion();
if (host == null) {
//expected if there's no discovered
//ps or relay server
m_log.log(LogService.LOG_INFO, "Highest remote: unknown / Highest local: " + highestLocalVersion);
return;
}
URL url = new URL(host, "deployment/" + gatewayID + "/versions/");
Version highestRemoteVersion = getHighestRemoteVersion(url);
m_log.log(LogService.LOG_INFO, "Highest remote: " + highestRemoteVersion + " / Highest local: " + highestLocalVersion);
if ((highestRemoteVersion != null) && ((highestLocalVersion == null) || (highestRemoteVersion.compareTo(highestLocalVersion) > 0))) {
// no local version or local version lower than remote, install the update
installVersion(url, highestRemoteVersion, highestLocalVersion);
}
}
catch (MalformedURLException e) {
m_log.log(LogService.LOG_ERROR, "Error creating endpoint url", e);
}
catch (IOException e) {
m_log.log(LogService.LOG_ERROR, "Error accessing resources", e);
}
catch (Exception e) {
m_log.log(LogService.LOG_ERROR, "Error installing update", e);
}
}
}