| /* |
| * Copyright (c) 1996, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package java.io; |
| |
| |
| /** |
| * Abstract class for writing filtered character streams. |
| * The abstract class <code>FilterWriter</code> itself |
| * provides default methods that pass all requests to the |
| * contained stream. Subclasses of <code>FilterWriter</code> |
| * should override some of these methods and may also |
| * provide additional methods and fields. |
| * |
| * @author Mark Reinhold |
| * @since 1.1 |
| */ |
| |
| public abstract class FilterWriter extends Writer { |
| |
| /** |
| * The underlying character-output stream. |
| */ |
| protected Writer out; |
| |
| /** |
| * Create a new filtered writer. |
| * |
| * @param out a Writer object to provide the underlying stream. |
| * @throws NullPointerException if <code>out</code> is <code>null</code> |
| */ |
| protected FilterWriter(Writer out) { |
| super(out); |
| this.out = out; |
| } |
| |
| /** |
| * Writes a single character. |
| * |
| * @exception IOException If an I/O error occurs |
| */ |
| public void write(int c) throws IOException { |
| out.write(c); |
| } |
| |
| /** |
| * Writes a portion of an array of characters. |
| * |
| * @param cbuf Buffer of characters to be written |
| * @param off Offset from which to start reading characters |
| * @param len Number of characters to be written |
| * |
| * @throws IndexOutOfBoundsException |
| * If the values of the {@code off} and {@code len} parameters |
| * cause the corresponding method of the underlying {@code Writer} |
| * to throw an {@code IndexOutOfBoundsException} |
| * |
| * @throws IOException If an I/O error occurs |
| */ |
| public void write(char cbuf[], int off, int len) throws IOException { |
| out.write(cbuf, off, len); |
| } |
| |
| /** |
| * Writes a portion of a string. |
| * |
| * @param str String to be written |
| * @param off Offset from which to start reading characters |
| * @param len Number of characters to be written |
| * |
| * @throws IndexOutOfBoundsException |
| * If the values of the {@code off} and {@code len} parameters |
| * cause the corresponding method of the underlying {@code Writer} |
| * to throw an {@code IndexOutOfBoundsException} |
| * |
| * @throws IOException If an I/O error occurs |
| */ |
| public void write(String str, int off, int len) throws IOException { |
| out.write(str, off, len); |
| } |
| |
| /** |
| * Flushes the stream. |
| * |
| * @exception IOException If an I/O error occurs |
| */ |
| public void flush() throws IOException { |
| out.flush(); |
| } |
| |
| public void close() throws IOException { |
| out.close(); |
| } |
| |
| } |