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package com.sun.enterprise.admin.common;
//Admin imports
import com.sun.enterprise.admin.util.IPatternMatcher;
import com.sun.enterprise.admin.util.RegExpMatcher;
import com.sun.enterprise.admin.util.GeneralPatternMatcher;
import com.sun.enterprise.admin.util.Logger;
// i18n import
import com.sun.enterprise.admin.util.SOMLocalStringsManager;
public class CombinedPatternMatcher implements IPatternMatcher
{
private String mPattern = null;
private String mTestString = null;
private IPatternMatcher mRealMatcher = null;
// i18n SOMLocalStringsManager
private static SOMLocalStringsManager localizedStrMgr =
SOMLocalStringsManager.getManager( CombinedPatternMatcher.class );
/**
Creates new CombinedPatternMatcher with pattern string and
string on which the patten has to be matched. None of the
strings may be null.
@param patternString the Pattern string.
@param testString the string on which pattern should be applied.
*/
public CombinedPatternMatcher(String patternString, String testString)
{
if (patternString == null || testString == null)
{
String msg = localizedStrMgr.getString( "admin.common.combinedpattermatcher_null_arg" );
throw new IllegalArgumentException( msg );
}
mPattern = patternString;
mTestString = testString;
if (isJDK14())
{
// Logger.log("using the jdk 1.4 regular expression facility");
mPattern = translateFromJMXToJDK14(patternString);
mRealMatcher = new RegExpMatcher(mPattern, testString);
}
else
{
// Logger.log("using pattern matcher without jdk 1.4");
mRealMatcher = new GeneralPatternMatcher(patternString, testString);
}
}
public boolean matches()
{
return ( mRealMatcher.matches() );
}
public boolean isJDK14()
{
String javaSpecVersion = System.getProperty("java.specification.version");
return ( javaSpecVersion.startsWith("1.4") );
}
private String translateFromJMXToJDK14(String aString)
{
String dotEscpapedString = escapeDots(aString);
String starReplacedString = insertDotBeforeStar(dotEscpapedString);
String qmReplacedString = insertDotBeforeQM(starReplacedString);
return ( qmReplacedString );
}
private String escapeDots(String aString)
{
char escape = Tokens.kEscapeChar;
char dot = Tokens.kDelimiterChar;
return ( insertCharBefore(aString, escape, dot) );
}
private String insertDotBeforeStar(String aString)
{
char dot = Tokens.kDelimiterChar;
char star = Tokens.kWildCardChar;
return ( insertCharBefore(aString, dot, star) );
}
private String insertDotBeforeQM(String aString)
{
char dot = Tokens.kDelimiterChar;
char qm = ObjectNames.kSingleMatchChar;
return ( insertCharBefore(aString, dot, qm) );
}
private String insertCharBefore(String aString, char insChar, char beforeChar)
{
StringBuffer destBuffer = new StringBuffer();
char[] srcArray = aString.toCharArray();
for (int i = 0 ; i < srcArray.length ; i++)
{
char ch = srcArray[i];
if (ch == beforeChar)
{
destBuffer.append(insChar);
}
destBuffer.append(ch);
}
return ( destBuffer.toString() );
}
}