| /* |
| * 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.cocoon.components.repository.impl; |
| |
| import java.io.IOException; |
| |
| import org.apache.avalon.framework.activity.Disposable; |
| import org.apache.avalon.framework.component.Component; |
| import org.apache.avalon.framework.logger.AbstractLogEnabled; |
| import org.apache.avalon.framework.service.ServiceException; |
| import org.apache.avalon.framework.service.ServiceManager; |
| import org.apache.avalon.framework.service.Serviceable; |
| import org.apache.cocoon.components.repository.helpers.CredentialsToken; |
| import org.apache.cocoon.components.repository.helpers.RepositoryTransactionHelper; |
| import org.apache.cocoon.components.webdav.WebDAVUtil; |
| import org.apache.commons.httpclient.HttpException; |
| |
| /** |
| * A transaction an locking helper class |
| * intended to be used by flowscripts or corresponding wrapper components. |
| */ |
| public class WebDAVRepositoryTransactionHelper extends AbstractLogEnabled |
| implements RepositoryTransactionHelper, Serviceable, Disposable, Component { |
| |
| /* The ServiceManager */ |
| private ServiceManager manager; |
| |
| /* The repository component */ |
| private WebDAVRepository repo; |
| |
| /* The credentials to be used against the WebDAV repository */ |
| private CredentialsToken credentials; |
| |
| /* (non-Javadoc) |
| * @see org.apache.avalon.framework.service.Serviceable#service(org.apache.avalon.framework.service.ServiceManager) |
| */ |
| public void service(ServiceManager manager) throws ServiceException { |
| this.manager = manager; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.avalon.framework.activity.Disposable#dispose() |
| */ |
| public void dispose() { |
| this.manager = null; |
| } |
| |
| /** |
| * create a WebDAVRepositoryTransactionHelper |
| * |
| * @param credentials the user credentials to be used against the WebDAV repository. |
| * @param repo a reference to the WebDAVRepository object. |
| */ |
| public WebDAVRepositoryTransactionHelper(CredentialsToken credentials, WebDAVRepository repo) { |
| this.credentials = credentials; |
| this.repo = repo; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.cocoon.components.repository.helpers.RepositoryTransactionHelper#beginTran() |
| */ |
| public boolean beginTran() { |
| //may be implemented via DeltaV activities? |
| throw new UnsupportedOperationException(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.cocoon.components.repository.helpers.RepositoryTransactionHelper#commitTran() |
| */ |
| public boolean commitTran() { |
| //may be implemented via DeltaV activities? |
| throw new UnsupportedOperationException(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.cocoon.components.repository.helpers.RepositoryTransactionHelper#rollbackTran() |
| */ |
| public boolean rollbackTran() { |
| //may be implemented via DeltaV activities? |
| throw new UnsupportedOperationException(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.cocoon.components.repository.helpers.RepositoryTransactionHelper#lock(java.lang.String) |
| */ |
| public boolean lock(String uri) { |
| |
| try { |
| return WebDAVUtil.getWebdavResource(this.repo.getAbsoluteURI(uri)).lockMethod(); |
| |
| } catch (HttpException he) { |
| this.getLogger().error("HTTP Error locking " + uri, he); |
| } catch (IOException ioe) { |
| this.getLogger().error("IO Error locking " + uri, ioe); |
| } |
| |
| return false; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.cocoon.components.repository.helpers.RepositoryTransactionHelper#lock(java.lang.String, int) |
| */ |
| public boolean lock(String uri, int timeout) { |
| |
| try { |
| return WebDAVUtil.getWebdavResource(this.repo.getAbsoluteURI(uri)) |
| .lockMethod(this.credentials.getPrincipal().getName(), timeout); |
| |
| } catch (HttpException he) { |
| this.getLogger().error("HTTP Error locking " + uri, he); |
| } catch (IOException ioe) { |
| this.getLogger().error("IO Error locking " + uri, ioe); |
| } |
| |
| return false; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.cocoon.components.repository.helpers.RepositoryTransactionHelper#unlock(java.lang.String) |
| */ |
| public boolean unlock(String uri) { |
| |
| try { |
| return WebDAVUtil.getWebdavResource(this.repo.getAbsoluteURI(uri)).unlockMethod(); |
| |
| } catch (HttpException he) { |
| this.getLogger().error("HTTP Error unlocking " + uri, he); |
| } catch (IOException ioe) { |
| this.getLogger().error("IO Error unlocking " + uri, ioe); |
| } |
| |
| return false; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.cocoon.components.repository.helpers.RepositoryTransactionHelper#supportsTransactions() |
| */ |
| public boolean supportsTransactions() { |
| //may be implemeted via DeltaV activities? --> make configurable |
| return false; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.cocoon.components.repository.helpers.RepositoryTransactionHelper#supportsLocking() |
| */ |
| public boolean supportsLocking() { |
| return true; |
| } |
| |
| } |