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A versatile Java(TM) library that implements many useful container and utility classes.

There is a newer version: 1.1.12


/*
 * de.unkrig.commons - A general-purpose Java class library
 *
 * Copyright (c) 2015, Arno Unkrig
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
 * following conditions are met:
 *
 *    1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
 *       following disclaimer.
 *    2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
 *       following disclaimer in the documentation and/or other materials provided with the distribution.
 *    3. The name of the author may not be used to endorse or promote products derived from this software without
 *       specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

package de.unkrig.commons.text;

import java.io.OutputStream;
import java.io.PrintStream;

import de.unkrig.commons.nullanalysis.Nullable;

/**
 * A printer that prints its messages to two {@link OutputStream}s; by default {@code System.out} and {@code
 * System.err}.
 *
 * @see #setOut(OutputStream)
 * @see #setErr(OutputStream)
 */
public
class StreamPrinter extends AbstractPrinter {

    private PrintStream out = System.out, err = System.err;

    /**
     * Sets the output stream for {@link #error(String)} and {@link #warn(String)}. The default is {@link System#err}.
     */
    public void
    setOut(OutputStream out) { this.out = out instanceof PrintStream ? (PrintStream) out : new PrintStream(out); }

    /**
     * Sets the output stream for {@link #info(String)}, {@link #verbose(String)} and {@link #debug(String)}. The
     * default is {@link System#out}.
     */
    public void
    setErr(OutputStream err) { this.err = err instanceof PrintStream ? (PrintStream) err : new PrintStream(err); }

    @Override public void error(@Nullable String message)   { this.err.println(message); }
    @Override public void warn(@Nullable String message)    { this.err.println(message); }
    @Override public void info(@Nullable String message)    { this.out.println(message); }
    @Override public void verbose(@Nullable String message) { this.out.println(message); }
    @Override public void debug(@Nullable String message)   { this.out.println(message); }
}