at_speaker.java

自己实现的基于串口通讯发送短消息的低层协议JAVA代码

package com.jzl.sirius.at.command;

import java.nio.CharBuffer;

import com.jzl.sirius.at.ATConstants;
import com.jzl.sirius.at.util.StringMatch;
import com.jzl.sirius.at.util.StringUtils;

/**
 * @author xujian
 * @version 2.0
 * @see com.jzl.sirius.at.ATCommand
 * @see com.jzl.sirius.at.command.ATCommandBase
 */
public class AT_SPEAKER extends ATCommandBase {

	private int commandType;

	private StringBuffer command = new StringBuffer();

	private int activeConfig = -1;

	private String supportedActiveConfigs = "";

	public AT_SPEAKER() {
		this(false);
	}

	public AT_SPEAKER(boolean tested) {
        super(new StringMatch(ATConstants.CRLF + "+SPEAKER:"));
        
		commandType = tested ? COMMAND_TYPE_TEST : COMMAND_TYPE_READ;

		command.append(tested ? "AT+SPEAKER=?" : "AT+SPEAKER?");
		command.append(ATConstants.CR);
	}

	public AT_SPEAKER(int activeConfig) {
		commandType = COMMAND_TYPE_ACTION;

		command.append("AT+SPEAKER=");
		command.append(activeConfig);
		command.append(ATConstants.CR);
	}
    
    public String buildCommand() {
        return command.toString();
    }
    
    protected void decodeOkResponse(CharBuffer response) {
        if (commandType == COMMAND_TYPE_READ) {
            String activeConfigStr = StringUtils.substring(response.toString(), "+SPEAKER:", ATConstants.CRLF);
            try {
                activeConfig = Integer.parseInt(activeConfigStr.trim());
            }
            catch(Exception ex) {
            }
        } 
        else if (commandType == COMMAND_TYPE_TEST) {
            supportedActiveConfigs = StringUtils.substring(response.toString(), "+SPEAKER:", ATConstants.CRLF).trim();
        }
    }


	public int getActiveConfig() {
		return activeConfig;
	}

	public String getSupportedActiveConfigs() {
		return supportedActiveConfigs;
	}
}