| /******************************************************************************* |
| * Copyright (c) 2003, 2004 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 |
| *******************************************************************************/ |
| package org.eclipse.jsp; |
| |
| import java.io.*; |
| import java.io.File; |
| |
| public class Util { |
| |
| static char[] getChars(String s) { |
| int l= s.length(); |
| char[] cc= new char[l]; |
| if (l > 0) |
| s.getChars(0, l, cc, 0); |
| return cc; |
| } |
| |
| static char[] getFileCharContent(File file, String encoding) throws IOException { |
| System.out.println("****jdt.internal.compiler.util.Util.getFileCharContent: " + file + " " + encoding); //$NON-NLS-1$ //$NON-NLS-2$ |
| InputStream stream = null; |
| try { |
| stream = new BufferedInputStream(new FileInputStream(file)); |
| return Util.getInputStreamAsCharArray(stream, (int) file.length(), encoding); |
| } finally { |
| if (stream != null) { |
| try { |
| stream.close(); |
| } catch (IOException e) { |
| // ignore |
| } |
| } |
| } |
| } |
| |
| public static char[] getInputStreamAsCharArray(InputStream stream, int length, String encoding) throws IOException { |
| InputStreamReader reader = (encoding == null) |
| ? new InputStreamReader(stream) |
| : new InputStreamReader(stream, encoding); |
| char[] contents; |
| if (length == -1) { |
| contents = new char[0]; |
| int contentsLength = 0; |
| int amountRead = -1; |
| do { |
| int amountRequested = Math.max(stream.available(), 8192); // read at least 8K |
| |
| // resize contents if needed |
| if (contentsLength + amountRequested > contents.length) { |
| System.arraycopy( |
| contents, |
| 0, |
| contents = new char[contentsLength + amountRequested], |
| 0, |
| contentsLength); |
| } |
| |
| // read as many chars as possible |
| amountRead = reader.read(contents, contentsLength, amountRequested); |
| |
| if (amountRead > 0) { |
| // remember length of contents |
| contentsLength += amountRead; |
| } |
| } while (amountRead != -1); |
| |
| // resize contents if necessary |
| if (contentsLength < contents.length) { |
| System.arraycopy( |
| contents, |
| 0, |
| contents = new char[contentsLength], |
| 0, |
| contentsLength); |
| } |
| } else { |
| contents = new char[length]; |
| int len = 0; |
| int readSize = 0; |
| while ((readSize != -1) && (len != length)) { |
| // See PR 1FMS89U |
| // We record first the read size. In this case len is the actual read size. |
| len += readSize; |
| readSize = reader.read(contents, len, length - len); |
| } |
| // See PR 1FMS89U |
| // Now we need to resize in case the default encoding used more than one byte for each |
| // character |
| if (len != length) |
| System.arraycopy(contents, 0, (contents = new char[len]), 0, len); |
| } |
| |
| return contents; |
| } |
| } |