| /******************************************************************************* |
| * Copyright (c) 2000, 2006 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.team.internal.ccvs.core.client; |
| |
| import java.io.*; |
| |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.osgi.util.NLS; |
| import org.eclipse.team.internal.ccvs.core.*; |
| |
| /** |
| * Stream which detects CRLF in text file contents recieved from the server |
| */ |
| public class CRLFDetectInputStream extends FilterInputStream { |
| |
| private boolean previousCR; |
| private String filename; |
| private boolean reported = false; |
| |
| protected CRLFDetectInputStream(InputStream in, ICVSStorage file) { |
| super(in); |
| try { |
| this.filename = getFileName(file); |
| } catch (CVSException e) { |
| this.filename = file.getName(); |
| } |
| } |
| |
| private String getFileName(ICVSStorage storage) throws CVSException { |
| String fileName; |
| if (storage instanceof ICVSFile) { |
| ICVSFile file = (ICVSFile)storage; |
| fileName = file.getRepositoryRelativePath(); |
| if (fileName == null) { |
| IResource resource = file.getIResource(); |
| if (resource == null) { |
| fileName = file.getName(); |
| } else { |
| // Use the resource path if there is one since the remote pat |
| fileName = file.getIResource().getFullPath().toString(); |
| } |
| } |
| } else { |
| fileName = storage.getName(); |
| } |
| return fileName; |
| } |
| |
| /** |
| * Wraps the underlying stream's method. |
| * Translates CR/LF sequences to LFs transparently. |
| * @throws InterruptedIOException if the operation was interrupted before all of the |
| * bytes specified have been skipped, bytesTransferred will be zero |
| * @throws IOException if an i/o error occurs |
| */ |
| public int read() throws IOException { |
| int next = in.read(); |
| if (next != -1) { |
| testForCRLF((byte)next); |
| } |
| return next; |
| } |
| |
| /** |
| * Wraps the underlying stream's method. |
| * Translates CR/LF sequences to LFs transparently. |
| * @throws InterruptedIOException if the operation was interrupted before all of the |
| * bytes specified have been skipped, bytesTransferred may be non-zero |
| * @throws IOException if an i/o error occurs |
| */ |
| public int read(byte[] buffer, int off, int len) throws IOException { |
| int count = super.read(buffer, off, len); |
| for (int i = off; i < count; i++) { |
| testForCRLF(buffer[i]); |
| } |
| return count; |
| } |
| |
| /** |
| * Test the byte to see if a CRLF sequence was read |
| */ |
| private void testForCRLF(byte next) { |
| if (reported) return; |
| if (previousCR && next == '\n') { |
| CVSProviderPlugin.log(IStatus.WARNING, NLS.bind(CVSMessages.CRLFDetectInputStream_0, new String[] { filename }), null); |
| reported = true; |
| } |
| previousCR = (next == '\r'); |
| } |
| } |