src/testcases/org/apache/poi/util/NullPrintStream.java

/* ====================================================================
   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.poi.util;

import java.io.PrintStream;
import java.util.Locale;

// need to override all methods to omit calls to UTF-handling methods
@SuppressForbidden("ignore super constructor with charset - omits declaring UnsupportedEncodingException")
public class NullPrintStream extends PrintStream {
    @SuppressWarnings("resource")
    public NullPrintStream() {
        super(new NullOutputStream(), true);
    }
    @Override
    public void write(int b) {}
    @Override
    public void write(byte[] buf, int off, int len) {}
    @Override
    public void print(boolean b) {}
    @Override
    public void print(char c) {}
    @Override
    public void print(int i) {}
    @Override
    public void print(long l) {}
    @Override
    public void print(float f) {}
    @Override
    public void print(double d) {}
    @Override
    public void print(char[] s) {}
    @Override
    public void print(String s) {}
    @Override
    public void print(Object obj) {}
    @Override
    public void println() {}
    @Override
    public void println(boolean x) {}
    @Override
    public void println(char x) {}
    @Override
    public void println(int x) {}
    @Override
    public void println(long x) {}
    @Override
    public void println(float x) {}
    @Override
    public void println(double x) {}
    @Override
    public void println(char[] x) {}
    @Override
    public void println(String x) {}
    @Override
    public void println(Object x) {}
    @Override
    public PrintStream printf(String format, Object... args) { return this; }
    @Override
    public PrintStream printf(Locale l, String format, Object... args) { return this; }
    @Override
    public PrintStream format(String format, Object... args) { return this; }
    @Override
    public PrintStream format(Locale l, String format, Object... args) { return this; }
    @Override
    public PrintStream append(CharSequence csq) { return this; }
    @Override
    public PrintStream append(CharSequence csq, int start, int end) { return this; }
    @Override
    public PrintStream append(char c) { return this; }
    @Override
    public void write(byte[] b) {}
}