/*
* FindBugs - Find Bugs in Java programs
* Copyright (C) 2006, University of Maryland
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package edu.umd.cs.findbugs.filter;
import java.util.StringTokenizer;
/**
* @author rak
*/
public class SignatureUtil {
public static String createMethodSignature(String params, String returns) {
if (params == null) {
if (returns == null)
return null;
throw new NullPointerException("params is null but returns is nonnull");
}
if (returns == null)
throw new NullPointerException("returns is null but params is nonnull");
StringBuilder buf = new StringBuilder();
buf.append('(');
StringTokenizer tok = new StringTokenizer(params, " \t\n\r\f,");
while (tok.hasMoreTokens()) {
String param = typeToSignature(tok.nextToken());
buf.append(param);
}
buf.append(')');
buf.append(typeToSignature(returns));
return buf.toString();
}
public static String createFieldSignature(String type) {
if (type == null)
return null;
return typeToSignature(type);
}
private static String typeToSignature(String type) {
if (type.endsWith("[]")) {
return "[" + typeToSignature(type.substring(0, type.length() - 2));
} else {
return scalarTypeToSiganture(type);
}
}
private static String scalarTypeToSiganture(String type) {
if (type.equals("boolean"))
return "Z";
else if (type.equals("byte"))
return "B";
else if (type.equals("char"))
return "C";
else if (type.equals("short"))
return "S";
else if (type.equals("int"))
return "I";
else if (type.equals("long"))
return "J";
else if (type.equals("float"))
return "F";
else if (type.equals("double"))
return "D";
else if (type.equals("void"))
return "V";
else
return "L" + type.replace('.', '/') + ";";
}
}