| /* |
| * 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 org.apache.ace.deployment.service.DeploymentService; |
| import org.osgi.framework.Version; |
| import org.osgi.service.log.LogService; |
| |
| /** |
| * Implementation of the <code>Runnable</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 implements Runnable { |
| |
| private volatile DeploymentService m_service; |
| private volatile LogService m_log; |
| |
| /** |
| * 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 { |
| Version highestLocalVersion = m_service.getHighestLocalVersion(); |
| Version highestRemoteVersion = m_service.getHighestRemoteVersion(); |
| |
| if (highestRemoteVersion == null) { |
| // expected if there's no discovered ps or relay server |
| // ACE-220: lower log level; not of real interest... |
| m_log.log(LogService.LOG_DEBUG, "Highest remote: unknown / Highest local: " + highestLocalVersion); |
| return; |
| } |
| // ACE-220: lower log level; not of real interest... |
| m_log.log(LogService.LOG_DEBUG, "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 |
| m_service.installVersion(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); |
| } |
| } |
| } |