| /******************************************************************************* |
| * Copyright (c) 2010, 2011 Tasktop Technologies and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Tasktop Technologies - initial API and implementation |
| * Eike Stepper - fixes for bug 323568 |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.commons.net.http; |
| |
| import java.io.IOException; |
| |
| import org.apache.commons.httpclient.HttpMethod; |
| import org.apache.commons.httpclient.HttpMethodBase; |
| import org.eclipse.mylyn.commons.core.operations.IOperationMonitor; |
| import org.eclipse.mylyn.commons.core.operations.OperationUtil; |
| import org.eclipse.mylyn.commons.net.AuthenticationCredentials; |
| import org.eclipse.mylyn.commons.net.WebUtil; |
| import org.eclipse.mylyn.internal.commons.net.http.CommonGetMethod3; |
| import org.eclipse.mylyn.internal.commons.net.http.CommonHeadMethod3; |
| import org.eclipse.mylyn.internal.commons.net.http.CommonPostMethod3; |
| |
| /** |
| * @author Steffen Pingel |
| * @since 3.7 |
| */ |
| public abstract class HttpOperation3<T> { |
| |
| private final CommonHttpClient3 client; |
| |
| public HttpOperation3(CommonHttpClient3 client) { |
| this.client = client; |
| } |
| |
| protected CommonHttpMethod3 createGetMethod(String requestPath) { |
| return new CommonGetMethod3(requestPath); |
| } |
| |
| protected CommonHttpMethod3 createPostMethod(String requestPath) { |
| return new CommonPostMethod3(requestPath); |
| } |
| |
| protected CommonHttpMethod3 createHeadMethod(String requestPath) { |
| return new CommonHeadMethod3(requestPath); |
| } |
| |
| protected int execute(HttpMethod method, IOperationMonitor monitor) throws IOException { |
| monitor = OperationUtil.convert(monitor); |
| |
| // force authentication |
| if (needsAuthentication()) { |
| client.authenticate(monitor); |
| } |
| |
| // first attempt |
| int code = executeInternal(method, monitor); |
| if (needsReauthentication(code, monitor)) { |
| WebUtil.releaseConnection((HttpMethodBase) method, monitor); |
| client.authenticate(monitor); |
| |
| // second attempt |
| return executeInternal(method, monitor); |
| } else { |
| return code; |
| } |
| } |
| |
| private int executeInternal(HttpMethod method, IOperationMonitor monitor) throws IOException { |
| int code; |
| try { |
| code = WebUtil.execute(client.getHttpClient(), client.getHostConfiguration(monitor), method, monitor); |
| } catch (IOException e) { |
| WebUtil.releaseConnection((HttpMethodBase) method, monitor); |
| throw e; |
| } catch (RuntimeException e) { |
| WebUtil.releaseConnection((HttpMethodBase) method, monitor); |
| throw e; |
| } |
| return code; |
| } |
| |
| protected final CommonHttpClient3 getClient() { |
| return client; |
| } |
| |
| protected boolean hasCredentials(AuthenticationCredentials credentials) { |
| return credentials != null; |
| } |
| |
| protected boolean needsAuthentication() { |
| return false; |
| } |
| |
| private boolean needsReauthentication(int code, IOperationMonitor monitor) throws IOException { |
| return client.needsReauthentication(code, monitor); |
| } |
| |
| } |