soundrecorder.java

高质量Java程序设计 源代码

package net.betterjava.design.sideeffect;

/**
 * A Class represent a Winows sound recorder
 */
public class SoundRecorder {
	private byte[] audio; //当前打开的声音文件
	private long currentPosition; //当前声音文件播放的位置
	private int currentCommand; //当前执行的命令：停止，播放或录音

	private final static int STOP = 0; //用于currentCommand，停止
	private final static int PLAY = 1; //用于currentCommand，播放
	private final static int RECORD = 2; //用于currentCommand，录音
	//用于currentCommand，回退至开头
	private final static int SEEK_TO_START = 3;
	//用于currentCommand，前进至末尾
	private final static int SEEK_TO_END = 4;

	public void play() {
		//play a sound file		
	}

	public void stop() {
		//stop play or recorder
	}

	public void seekToStart() {
		//back to the start of the audio file
	}

	public void seekToEnd() {
		//forward to the end of the audio file
	}

	public void record() {
		//record sound to a audio file
	}

	public long getPosition() {
		return currentPosition;
	}

	public long getLength() {
		return audio.length;
	}

	public void setPosition(long pos) {
		currentPosition = pos;
	}
}