/*****************************************************************************
* *
* This file is part of the tna framework distribution. *
* Documentation and updates may be get from biaoping.yin the author of *
* this framework *
* *
* Sun Public License Notice: *
* *
* The contents of this file are subject to the Sun Public License Version *
* 1.0 (the "License"); you may not use this file except in compliance with *
* the License. A copy of the License is available at http://www.sun.com *
* *
* The Original Code is tag. The Initial Developer of the Original *
* Code is biaoping yin. Portions created by biaoping yin are Copyright *
* (C) 2000. All Rights Reserved. *
* *
* GNU Public License Notice: *
* *
* Alternatively, the contents of this file may be used under the terms of *
* the GNU Lesser General Public License (the "LGPL"), in which case the *
* provisions of LGPL are applicable instead of those above. If you wish to *
* allow use of your version of this file only under the terms of the LGPL *
* and not to allow others to use your version of this file under the SPL, *
* indicate your decision by deleting the provisions above and replace *
* them with the notice and other provisions required by the LGPL. If you *
* do not delete the provisions above, a recipient may use your version of *
* this file under either the SPL or the LGPL. *
* *
* biaoping.yin (yin-bp@163.com) *
* *
*****************************************************************************/
package com.frameworkset.util;
/**
* @author biaoping.yin
*
* To change the template for this generated type comment go to
* Window>Preferences>Java>Code Generation>Code and Comments
*/
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Serializable;
import java.io.StringWriter;
import java.util.Enumeration;
import java.util.Hashtable;
public class Util implements Serializable{
public Util()
{
}
public static String getLastToken(String str, String tokenSeparator)
{
return str.substring(str.lastIndexOf(tokenSeparator) + 1, str.length());
}
public static boolean isNull(String s)
{
return s == null || s.length() < 1;
}
public static boolean isNull(String s, String val)
{
return isNull(s) || s.compareTo(val) == 0;
}
public static String stackTrace(Throwable t)
{
StringWriter sw = new StringWriter();
t.printStackTrace(new PrintWriter(sw));
String s = sw.toString();
try
{
sw.close();
}
catch(IOException e)
{
//cat.error("::stackTrace - cannot close the StringWriter object", e);
}
return s;
}
public static String dbString(String v)
{
StringBuffer sb = new StringBuffer();
return isNull(v) ? "" : sb.append("'").append(v).append("'").toString();
}
public static String dumpHashTable(Hashtable table, boolean html)
{
Enumeration keys = table.keys();
Enumeration values = table.elements();
StringBuffer sb = new StringBuffer();
String eof = "\n";
if(html)
eof = "<br>\n";
for(; keys.hasMoreElements(); sb.append(" key [").append(keys.nextElement().toString()).append("] = [").append(values.nextElement().toString()).append("]").append(eof));
return sb.toString();
}
public static String addURLParameter(String URL, String paramName, String paramValue)
{
String param = paramName + "=" + paramValue;
return addURLParameter(URL, param);
}
public static String addURLParameter(String URL, String parameter)
{
StringBuffer sb = new StringBuffer(URL);
if(URL.lastIndexOf('?') == -1)
sb.append("?");
else
sb.append("&");
sb.append(parameter);
return sb.toString();
}
public static String remove(String str, String until)
{
String val = null;
int indx = str.indexOf(until);
if(indx != -1)
val = str.substring(indx + until.length(), str.length());
return val;
}
static Class _mthclass$(String x0)
{
try
{
return Class.forName(x0);
}
catch(ClassNotFoundException x1)
{
throw new NoClassDefFoundError(x1.getMessage());
}
}
/**
* determine the OS name
*
* @return The name of the OS
*/
public static final String getOS() {
return System.getProperty("os.name");
}
/**
* @return True if the OS is a Windows derivate.
*/
public static final boolean isWindows() {
return getOS().contains("Windows");
}
/**
* @return True if the OS is a Linux derivate.
*/
public static final boolean isLinux() {
return getOS().contains("Linux");
}
/**
* @return True if the OS is a Linux derivate.
*/
public static final boolean isUnix() {
return getOS().contains("Unix");
}
/**
* @return True if the OS is a Windows derivate.
*/
public static final boolean isWindows(String osname) {
return osname.contains("Windows");
}
/**
* @return True if the OS is a Linux derivate.
*/
public static final boolean isLinux(String osname) {
return osname.contains("Linux");
}
/**
* @return True if the OS is a Linux derivate.
*/
public static final boolean isUnix(String osname) {
return osname.contains("Unix");
}
}