/*
 *  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
 *
 *      https://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.tools.ant.taskdefs;

import java.io.IOException;
import java.io.OutputStream;

import org.apache.tools.ant.Task;

Redirects text written to a stream through the standard
Ant logging mechanism. This class is useful for integrating
with tools that write to System.out and System.err. For example,
the following will cause all text written to System.out to be
logged with "info" priority:
System.setOut(new PrintStream(new TaskOutputStream(project, Project.MSG_INFO)));
As of Ant 1.2, this class is considered to be dead code
by the Ant developers and is unmaintained.  Don't use
it.
Deprecated:
since 1.2.x.
Use LogOutputStream instead./**
 * Redirects text written to a stream through the standard
 * Ant logging mechanism. This class is useful for integrating
 * with tools that write to System.out and System.err. For example,
 * the following will cause all text written to System.out to be
 * logged with "info" priority:
 * <pre>System.setOut(new PrintStream(new TaskOutputStream(project, Project.MSG_INFO)));</pre>
 *
 * <p><strong>As of Ant 1.2, this class is considered to be dead code
 * by the Ant developers and is unmaintained.  Don't use
 * it.</strong></p>
 *
 * @deprecated since 1.2.x.
 * Use LogOutputStream instead.
 */
@Deprecated
public class TaskOutputStream extends OutputStream {

    private Task task;
    private StringBuffer line;
    private int msgOutputLevel;

    
Constructs a new JavacOutputStream with the given project
as the output source for messages.
/**
     * Constructs a new JavacOutputStream with the given project
     * as the output source for messages.
     */

    TaskOutputStream(Task task, int msgOutputLevel) {
        System.err.println("As of Ant 1.2 released in October 2000, the "
            + "TaskOutputStream class");
        System.err.println("is considered to be dead code by the Ant "
            + "developers and is unmaintained.");
        System.err.println("Don\'t use it!");

        this.task = task;
        this.msgOutputLevel = msgOutputLevel;

        line = new StringBuffer();
    }

    
Write a character to the output stream. This method looks
to make sure that there isn't an error being reported and
will flush each line of input out to the project's log stream.
Params:
c – the character to write
Throws:
IOException – on error/**
     * Write a character to the output stream. This method looks
     * to make sure that there isn't an error being reported and
     * will flush each line of input out to the project's log stream.
     * @param c the character to write
     * @throws IOException on error
     */

    public void write(int c) throws IOException {
        char cc = (char) c;
        if (cc == '\r' || cc == '\n') {
            // line feed
            if (line.length() > 0) {
                processLine();
            }
        } else {
            line.append(cc);
        }
    }

    
Processes a line of input and determines if an error occurred.
/**
     * Processes a line of input and determines if an error occurred.
     */

    private void processLine() {
        String s = line.toString();
        task.log(s, msgOutputLevel);
        line = new StringBuffer();
    }
}