| /* |
| * 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.felix.deploymentadmin.spi; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.ListIterator; |
| |
| import org.osgi.service.deploymentadmin.DeploymentException; |
| import org.osgi.service.deploymentadmin.spi.ResourceProcessor; |
| import org.osgi.service.deploymentadmin.spi.ResourceProcessorException; |
| import org.osgi.service.log.LogService; |
| |
| /** |
| * Command that commits all the resource processors that were added to the |
| * command. |
| */ |
| public class CommitResourceCommand extends Command { |
| |
| private final List m_processors = new ArrayList(); |
| |
| protected void doExecute(DeploymentSessionImpl session) throws Exception { |
| for (ListIterator i = m_processors.listIterator(m_processors.size()); i.hasPrevious();) { |
| ResourceProcessor processor = (ResourceProcessor) i.previous(); |
| try { |
| processor.prepare(); |
| } |
| catch (ResourceProcessorException e) { |
| session.getLog().log(LogService.LOG_ERROR, "Preparing commit for resource processor failed", e); |
| // Check what error code we got... |
| if (e.getCode() == ResourceProcessorException.CODE_PREPARE) { |
| throw new DeploymentException(CODE_COMMIT_ERROR, "Preparing commit for resource processor failed!", e); |
| } |
| throw new DeploymentException(e.getCode(), "Preparing commit for resource processor failed!", e); |
| } |
| catch (Exception e) { |
| session.getLog().log(LogService.LOG_ERROR, "Preparing commit for resource processor failed", e); |
| throw new DeploymentException(CODE_OTHER_ERROR, "Preparing commit for resource processor failed", e); |
| } |
| } |
| for (ListIterator i = m_processors.listIterator(m_processors.size()); i.hasPrevious();) { |
| ResourceProcessor processor = (ResourceProcessor) i.previous(); |
| try { |
| processor.commit(); |
| } |
| catch (Exception e) { |
| // We cannot throw an exception, see OSGi spec. |
| session.getLog().log(LogService.LOG_ERROR, "Committing resource processor '" + processor + "' failed", e); |
| } |
| } |
| m_processors.clear(); |
| } |
| |
| protected void rollback(DeploymentSessionImpl session) { |
| for (ListIterator i = m_processors.listIterator(m_processors.size()); i.hasPrevious();) { |
| ResourceProcessor processor = (ResourceProcessor) i.previous(); |
| try { |
| processor.rollback(); |
| } |
| catch (Exception e) { |
| // We cannot throw an exception, see OSGi spec. |
| session.getLog().log(LogService.LOG_ERROR, "Rollback of resource processor '" + processor + "' failed", e); |
| } |
| finally { |
| i.remove(); |
| } |
| } |
| } |
| |
| /** |
| * Add a resource processor, all resource processors that are added will be |
| * committed when the command is executed. |
| * |
| * @param processor The resource processor to add. |
| * @return true if the resource processor was added, false if it was already |
| * added. |
| */ |
| public boolean addResourceProcessor(ResourceProcessor processor) { |
| for (Iterator i = m_processors.iterator(); i.hasNext();) { |
| ResourceProcessor proc = (ResourceProcessor) i.next(); |
| if (proc == processor) { |
| return false; |
| } |
| } |
| m_processors.add(processor); |
| return true; |
| } |
| } |