| /* |
| * 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 org.apache.freemarker.generator.base.util; |
| |
| import java.io.IOException; |
| import java.io.Writer; |
| |
| import static java.util.Objects.requireNonNull; |
| |
| /** |
| * Wraps a writer (usually the internal FreeMarker's writer instance |
| * and avoids closing it since this would crash FreeMarker. E.g. the |
| * Commons CSV integration uses the FreeMarker writer directly but |
| * some implementation could call "CSVPrinter#close" |
| */ |
| public class NonClosableWriterWrapper extends Writer { |
| |
| private final Writer delegate; |
| |
| public NonClosableWriterWrapper(Writer delegate) { |
| this.delegate = requireNonNull(delegate); |
| } |
| |
| @Override |
| public void write(int c) throws IOException { |
| delegate.write(c); |
| } |
| |
| @Override |
| public void write(char[] cbuf) throws IOException { |
| delegate.write(cbuf); |
| } |
| |
| @Override |
| public void write(char[] cbuf, int off, int len) throws IOException { |
| delegate.write(cbuf, off, len); |
| } |
| |
| @Override |
| public void write(String str) throws IOException { |
| delegate.write(str); |
| } |
| |
| @Override |
| public void write(String str, int off, int len) throws IOException { |
| delegate.write(str, off, len); |
| } |
| |
| @Override |
| public Writer append(CharSequence csq) throws IOException { |
| return delegate.append(csq); |
| } |
| |
| @Override |
| public Writer append(CharSequence csq, int start, int end) throws IOException { |
| return delegate.append(csq, start, end); |
| } |
| |
| @Override |
| public Writer append(char c) throws IOException { |
| return delegate.append(c); |
| } |
| |
| @Override |
| public void flush() throws IOException { |
| delegate.flush(); |
| } |
| |
| @Override |
| public void close() { |
| // ignore |
| } |
| |
| @Override |
| public String toString() { |
| return delegate.toString(); |
| } |
| |
| public Writer getDelegate() { |
| return delegate; |
| } |
| } |