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java-simple-serial-connector
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Added private getUnixBasedPortNames() method. It it a universal method for Linux, Solaris and MacOS X. Also added precompiled RegExp patterns

This commit is contained in:
Alexey Sokolov 2013-04-10 16:11:22 +03:00
parent c0727b8dc9
commit 2819f0ceaf
1 changed files with 70 additions and 2 deletions
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72
src/java/jssc/SerialPortList.java
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@ -32,6 +32,7 @@ import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.TreeSet;
import java.util.regex.Pattern;
/**
*
@ -40,9 +41,33 @@ import java.util.TreeSet;
public class SerialPortList {
private static SerialNativeInterface serialInterface;
private static final Pattern PORTNAMES_REGEXP;
private static final String PORTNAMES_PATH;
static {
serialInterface = new SerialNativeInterface();
switch (SerialNativeInterface.getOsType()) {
case SerialNativeInterface.OS_LINUX: {
PORTNAMES_REGEXP = Pattern.compile("(ttyS|ttyUSB|ttyACM|ttyAMA)[0-9]{1,3}");
PORTNAMES_PATH = "/dev/";
break;
}
case SerialNativeInterface.OS_SOLARIS: {
PORTNAMES_REGEXP = Pattern.compile("[0-9]*|[a-z]*");
PORTNAMES_PATH = "/dev/term/";
break;
}
case SerialNativeInterface.OS_MAC_OS_X: {
PORTNAMES_REGEXP = Pattern.compile("tty.(serial|usbserial|usbmodem).*");
PORTNAMES_PATH = "/dev/";
break;
}
default: {
PORTNAMES_REGEXP = null;
PORTNAMES_PATH = null;
break;
}
}
}
//since 2.1.0 -> Fully rewrited port name comparator
@ -138,7 +163,12 @@ public class SerialPortList {
* with <b>zero</b> length will be returned (since jSSC-0.8 in previous versions null will be returned)
*/
public static String[] getPortNames() {
if(SerialNativeInterface.getOsType() == SerialNativeInterface.OS_LINUX){
//since 2.1.0 ->
if(PORTNAMES_PATH != null){
return getUnixBasedPortNames();
}
//<- since 2.1.0
/*if(SerialNativeInterface.getOsType() == SerialNativeInterface.OS_LINUX){
return getLinuxPortNames();
}
else if(SerialNativeInterface.getOsType() == SerialNativeInterface.OS_SOLARIS){//since 0.9.0 ->
@ -146,7 +176,7 @@ public class SerialPortList {
}
else if(SerialNativeInterface.getOsType() == SerialNativeInterface.OS_MAC_OS_X){
return getMacOSXPortNames();
}//<-since 0.9.0
}//<-since 0.9.0*/
String[] portNames = serialInterface.getSerialPortNames();
if(portNames == null){
return new String[]{};
@ -156,6 +186,44 @@ public class SerialPortList {
return ports.toArray(new String[ports.size()]);
}
/**
* Universal method for getting port names of _nix based systems
*
* @return
*/
private static String[] getUnixBasedPortNames() {
String[] returnArray = new String[]{};
File dir = new File(PORTNAMES_PATH);
if(dir.exists() && dir.isDirectory()){
File[] files = dir.listFiles();
if(files.length > 0){
TreeSet<String> portsTree = new TreeSet<String>(comparator);
for(File file : files){
String fileName = file.getName();
if(!file.isDirectory() && !file.isFile() && PORTNAMES_REGEXP.matcher(fileName).find()){
String portName = PORTNAMES_PATH + fileName;
if(SerialNativeInterface.getOsType() == SerialNativeInterface.OS_LINUX){
SerialPort serialPort = new SerialPort(portName);
try {
serialPort.openPort();
}
catch (SerialPortException ex) {
if(!ex.getExceptionType().equals(SerialPortException.TYPE_PORT_BUSY)){
continue;
}
}
}
portsTree.add(portName);
}
}
returnArray = portsTree.toArray(returnArray);
}
}
return returnArray;
}
/**
* Get serial port names in Linux OS (This method was completely rewrited in 0.8-tb4)
*