at_creg.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_CREG extends ATCommandBase {

	private int commandType;

	private StringBuffer command = new StringBuffer();

	private int mode = -1;

	private int stat;

	private String lac;

	private String cid;

	private String rejectCause;

	private String supportedModes = "";

	public AT_CREG() {
		this(false);
	}

	public AT_CREG(boolean tested) {
        super(new StringMatch(ATConstants.CRLF + "+CREG:"));

		commandType = tested ? COMMAND_TYPE_TEST : COMMAND_TYPE_READ;

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

	public AT_CREG(int mode) {
		commandType = COMMAND_TYPE_ACTION;

		command.append("AT+CREG=");
		command.append(mode);
        command.append(ATConstants.CR);
	}
    
    public String buildCommand() {
        return command.toString();
    }

    protected void decodeOkResponse(CharBuffer response) {
        String str = response.toString();
        try {
            if (commandType == COMMAND_TYPE_READ) {
                // format:<CR><LF>+CREG: <mode>,<stat>[,<lac>,<cid>]<CR><LF><CR><LF>OK<CR><LF>
                str = StringUtils.substring(str, "+CREG:", ATConstants.CRLF);
                
                if (str == null || str.trim().length() == 0) 
                    return;
    
                String[] arry = str.split(",");
                mode = Integer.parseInt(arry[0].trim());
                stat = Integer.parseInt(arry[1].trim());
    
                if (mode == 3) {
                    if (arry.length == 3)
                        rejectCause = arry[2];
                } else {
                    if (arry.length == 4) {
                        lac = arry[2];
                        cid = arry[3];
                    }
                }
    
            } else if (commandType == COMMAND_TYPE_TEST) {
                supportedModes = StringUtils.substring(str, "+CREG:", ATConstants.CRLF);
            }
        }
        catch(Exception ex) {
            ex.printStackTrace();
        }
    }
	

	public String getSupportedModes() {
		return supportedModes;
	}

	public String getCid() {
		return cid;
	}

	public String getLac() {
		return lac;
	}

	public int getMode() {
		return mode;
	}

	public String getRejectCause() {
		return rejectCause;
	}

	public int getStat() {
		return stat;
	}

}