| /******************************************************************************* |
| * Copyright (c) 2007, 2010 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| * Sonatype, Inc. - transport split |
| *******************************************************************************/ |
| package org.eclipse.equinox.internal.p2.repository; |
| |
| import java.io.*; |
| import java.net.URI; |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.equinox.internal.provisional.p2.repository.IStateful; |
| |
| public abstract class Transport { |
| |
| public static final String SERVICE_NAME = Transport.class.getName(); |
| |
| /** |
| * Perform a download, writing into the target output stream. Progress is reported on the |
| * monitor. If the <code>target</code> is an instance of {@link IStateful} the resulting status |
| * is also set on the target. An IStateful target is updated with status even if this methods |
| * throws {@link OperationCanceledException}. |
| * |
| * @returns IStatus, that is a {@link DownloadStatus} on success. |
| * @param toDownload URI of file to download |
| * @param target OutputStream where result is written |
| * @param startPos the starting position of the download, or -1 for from start |
| * @param monitor where progress should be reported |
| * @throws OperationCanceledException if the operation was canceled. |
| */ |
| public abstract IStatus download(URI toDownload, OutputStream target, long startPos, IProgressMonitor monitor); |
| |
| /** |
| * Perform a download, writing into the target output stream. Progress is reported on the |
| * monitor. If the <code>target</code> is an instance of {@link IStateful} the resulting status |
| * is also set on the target. |
| * |
| * @returns IStatus, that is a {@link DownloadStatus} on success. |
| * @param toDownload URI of file to download |
| * @param target OutputStream where result is written |
| * @param monitor where progress should be reported |
| * @throws OperationCanceledException if the operation was canceled. |
| */ |
| public abstract IStatus download(URI toDownload, OutputStream target, IProgressMonitor monitor); |
| |
| /** |
| * Perform a stream download, writing into an InputStream that is returned. Performs authentication if needed. |
| * |
| * @returns InputStream a stream with the content from the toDownload URI, or null |
| * @param toDownload URI of file to download |
| * @param monitor monitor checked for cancellation |
| * @throws OperationCanceledException if the operation was canceled. |
| * @throws AuthenticationFailedException if authentication failed, or too many attempt were made |
| * @throws FileNotFoundException if the toDownload was reported as non existing |
| * @throws CoreException on errors |
| */ |
| public abstract InputStream stream(URI toDownload, IProgressMonitor monitor) throws FileNotFoundException, CoreException, AuthenticationFailedException; |
| |
| /** |
| * Returns the last modified date for a URI. A last modified of 0 typically indicates that |
| * the server response is wrong, but should not be interpreted as a file not found. |
| * @param toDownload |
| * @param monitor |
| * @throws OperationCanceledException if the operation was canceled by the user. |
| * @return last modified date (possibly 0) |
| */ |
| public abstract long getLastModified(URI toDownload, IProgressMonitor monitor) throws CoreException, FileNotFoundException, AuthenticationFailedException; |
| |
| } |