com.sun.enterprise.universal.StringUtils Maven / Gradle / Ivy
/*
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
* [name of copyright owner]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.enterprise.universal;
/* WBN Valentine's Day, 2000 -- place for handy String utils.
*/
import java.util.ArrayList;
import java.util.Vector;
import java.sql.SQLException;
public class StringUtils
{
public static final String NEWLINE = System.getProperty("line.separator");
public static final String EOL = NEWLINE;
private StringUtils()
{
}
////////////////////////////////////////////////////////////////////////////
public static String formatSQLException(SQLException ex)
{
//Assertion.check(ex);
String s = "SQLException:\n";
do
{
s += "SQLState: " + ex.getSQLState() + "\n";
s += "Message: " + ex.getMessage() + "\n";
s += "Vendor: " + ex.getErrorCode()+ "\n";
s += "\n";
}while( (ex = ex.getNextException()) != null);
return s;
}
////////////////////////////////////////////////////////////////////////////
public static int maxWidth(Vector v)
{
// find longest String in a vector of Strings...
int max = 0;
if(v == null || v.size() <= 0 || !(v.elementAt(0) instanceof String))
return 0;
for(int i = v.size() - 1; i >= 0; i--)
{
int len = ((String)v.elementAt(i)).length();
if(len > max)
max = len;
}
return max;
}
////////////////////////////////////////////////////////////////////////////
public static boolean isHex(String s)
{
// is this the String representation of a valid hex number?
// "5", "d", "D", "F454ecbb" all return true...
// p.s. there MUST be a better and faster way of doing this...
final int slen = s.length();
for(int i = 0; i < slen; i++)
if(isHex(s.charAt(i)) == false)
return false;
return true;
}
////////////////////////////////////////////////////////////////////////////
public static boolean isHex(char c)
{
// is this the char a valid hex digit?
String hex = "0123456789abcdefABCDEF";
int hexlen = hex.length();
for(int i = 0; i < hexlen; i++)
if(hex.charAt(i) == c)
return true;
return false;
}
////////////////////////////////////////////////////////////////////////////
public static String getPenultimateDirName(String s)
{
// e.g. input: "a/b/c/d/foobar.txt" output: "d"
if(s == null || s.length() <= 0)
return s;
// must be a plain file name -- return empty string...
if( (s.indexOf('/') < 0) && (s.indexOf('\\') < 0) )
return "";
s = s.replace('\\', '/'); // make life easier for the next steps...
int index = s.lastIndexOf('/');
if(index < 0)
return ""; // can't happen!!!
s = s.substring(0, index); // this will truncate the last '/'
index = s.lastIndexOf('/');
if(index >= 0)
s = s.substring(index + 1);
return s;
}
////////////////////////////////////////////////////////////////////////////
public static String toShortClassName(String className)
{
int index = className.lastIndexOf('.');
if(index >= 0 && index < className.length() - 1)
return className.substring(index + 1);
return className;
}
////////////////////////////////////////////////////////////////////////////
public static String padRight(String s, int len)
{
if(s == null || s.length() >= len)
return s;
for(int i = len - s.length(); i > 0; --i)
s += ' ';
return s;
}
////////////////////////////////////////////////////////////////////////////
public static String padLeft(String s, int len, char c)
{
String ss = "";
if(s == null || s.length() >= len)
return s;
for(int i = len - s.length(); i > 0; --i)
ss += c;
return ss + s;
}
////////////////////////////////////////////////////////////////////////////
public static String padLeft(String s, int len)
{
return padLeft(s, len, ' ');
}
////////////////////////////////////////////////////////////////////////////
public static String[] toLines(String s)
{
if(s == null)
return new String[0];
ArrayList list = new ArrayList();
int start = 0;
int end = 0;
for(end = s.indexOf('\n', start); end >= 0 && start < s.length(); end = s.indexOf('\n', start))
{
list.add(s.substring(start, end)); // does NOT include the '\n'
start = end + 1;
}
if(start < s.length())
list.add(s.substring(start));
String[] ss = new String[list.size()];
list.toArray(ss);
return ss;
}
////////////////////////////////////////////////////////////////////////////
public static void prepend(String[] ss, String what)
{
for(int i = 0; i < ss.length; i++)
ss[i] = what + ss[i];
}
////////////////////////////////////////////////////////////////////////////
public static String UpperCaseFirstLetter(String s)
{
if(s == null || s.length() <= 0)
return s;
return s.substring(0, 1).toUpperCase() + s.substring(1);
}
////////////////////////////////////////////////////////////////////////////
public static String replace(String s, String token, String replace)
{
if(s == null || s.length() <= 0 || token == null || token.length() <= 0)
return s;
int index = s.indexOf(token);
if(index < 0)
return s;
int tokenLength = token.length();
String ret = s.substring(0, index);
ret += replace;
ret += s.substring(index + tokenLength);
return ret;
}
////////////////////////////////////////////////////////////////////////////
public static boolean isAllWhite(String s)
{
if(s == null)
return true;
int len = s.length();
for(int i = 0; i < len; i++)
{
char c = s.charAt(i);
if(!Character.isWhitespace(c))
return false;
}
return true;
}
////////////////////////////////////////////////////////////////////////////
// Test Code...
public static void main(String[] args)
{
final int len = args.length;
if((len == 1) && args[0].equalsIgnoreCase("toLine"))
testToLine();
else if((len > 1) && args[0].equalsIgnoreCase("isHex"))
testHex(args);
else
usage();
}
////////////////////////////////////////////////////////////////////////////
private static void usage()
{
System.out.println("StringUtils -- main() for testing usage:\n");
System.out.println("java netscape.blizzard.util.StringUtils toLine");
System.out.println("java netscape.blizzard.util.StringUtils isHex number1 number2 ...");
}
////////////////////////////////////////////////////////////////////////////
private static void testHex(String[] args)
{
System.out.println("StringUtils -- Testing Hex");
for(int i = 1; i < args.length; i++)
System.out.println(padRight(args[i], 16) + " " + (isHex(args[i]) ? "yesHex" : "notHex"));
}
////////////////////////////////////////////////////////////////////////////
private static void testToLine()
{
System.out.println("StringUtils -- Testing toLine()");
String[] ss =
{
null,
"",
"abc\ndef\n",
"abc\ndef",
"abc",
"abc\n",
"abc\n\n",
"q",
"\n\nk\n\nz\n\n",
"sd.adj;ld"
};
for(int k = 0; k < ss.length; k++)
{
String[] s2 = StringUtils.toLines(ss[k]);
System.out.println("String #" + k + ", Number of Lines: " + s2.length);
for(int i = 0; i < s2.length; i++)
System.out.println(s2[i]);
}
}
public static void testUpperCase()
{
String[] test = new String[] { "xyz", "HITHERE", "123aa", "aSSS", "yothere" };//NOI18N
for(int i = 0; i < test.length; i++)
{
System.out.println(test[i] + " >>> " + UpperCaseFirstLetter(test[i]));//NOI18N
}
}
public static boolean ok(String s)
{
return s != null && s.length() > 0;
}
/**
* Removes the quoting around a String.
* @param s The String that may have enclosing quotes
* @return The String resulting from removing the enclosing quotes
*/
public static String removeEnclosingQuotes(String s)
{
if(s == null)
return null;
if(isDoubleQuoted(s) || isSingleQuoted(s)) {
return s.substring(1, s.length() - 1);
}
return s;
}
private static boolean isDoubleQuoted(String s) {
return s.startsWith("\"") && s.endsWith("\"") && s.length() > 1;
}
private static boolean isSingleQuoted(String s) {
return s.startsWith("'") && s.endsWith("'") && s.length() > 1;
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy