| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package freemarker.template.utility; |
| |
| import java.io.IOException; |
| import java.io.Writer; |
| |
| /** |
| * A {@link Writer} that simply drops what it gets. |
| * |
| * @since 2.3.20 |
| */ |
| public final class NullWriter extends Writer { |
| |
| public static final NullWriter INSTANCE = new NullWriter(); |
| |
| /** Can't be instantiated; use {@link #INSTANCE}. */ |
| private NullWriter() { } |
| |
| @Override |
| public void write(char[] cbuf, int off, int len) throws IOException { |
| // Do nothing |
| } |
| |
| @Override |
| public void flush() throws IOException { |
| // Do nothing |
| } |
| |
| @Override |
| public void close() throws IOException { |
| // Do nothing |
| } |
| |
| @Override |
| public void write(int c) throws IOException { |
| // Do nothing |
| } |
| |
| @Override |
| public void write(char[] cbuf) throws IOException { |
| // Do nothing |
| } |
| |
| @Override |
| public void write(String str) throws IOException { |
| // Do nothing |
| } |
| |
| @Override |
| public void write(String str, int off, int len) throws IOException { |
| // Do nothing |
| } |
| |
| @Override |
| public Writer append(CharSequence csq) throws IOException { |
| // Do nothing |
| return this; |
| } |
| |
| @Override |
| public Writer append(CharSequence csq, int start, int end) throws IOException { |
| // Do nothing |
| return this; |
| } |
| |
| @Override |
| public Writer append(char c) throws IOException { |
| // Do nothing |
| return this; |
| } |
| |
| } |