/* Copyright (c) 2002-2011 by XMLVM.org
*
* Project Info: http://www.xmlvm.org
*
* This program 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
package org.xmlvm.util.skeleton;
import java.io.FileWriter;
import java.io.IOException;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
public class ClassSkeleton
{
private static final String COPYRIGHT= "/*\n" + " * Copyright (c) 2002-2011 by XMLVM.org\n" + " *\n" + " * Project Info: http://www.xmlvm.org\n" + " *\n" + " * This program is free software; you can redistribute it and/or modify it\n" + " * under the terms of the GNU Lesser General Public License as published by\n" + " * the Free Software Foundation; either version 2.1 of the License, or\n" + " * (at your option) any later version.\n" + " *\n" + " * This library is distributed in the hope that it will be useful, but\n" + " * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\n" + " * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public\n" + " * License for more details.\n" + " *\n" + " * You should have received a copy of the GNU Lesser General Public\n" + " * License along with this library; if not, write to the Free Software\n" + " * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,\n" + " * USA.\n" + " */\n\n";
private static final String LINE= "// ----------------------------------------------------------------------------\n";
private static final String INIT= "__init_";
private static final char DOT= '_';
private static final String PARAM= "___";
/* */
private StringBuilder hfile;
private StringBuilder mfile;
private StringBuilder test;
private final Class c;
public ClassSkeleton(Class c)
{
this.c= c;
hfile= new StringBuilder();
mfile= new StringBuilder();
test= new StringBuilder();
String jclass= c.getName();
String classname= fixName(jclass);
String shortname= getShort();
/* Create .h header */
hfile.append(COPYRIGHT);
hfile.append("// ").append(shortname).append('\n');
hfile.append(LINE);
hfile.append("typedef ").append(shortname).append(' ').append(classname).append(";\n\n");
hfile.append("@interface ").append(shortname).append(" (cat_").append(classname).append(");\n");
/* Create .m header */
mfile.append(COPYRIGHT);
mfile.append("#import \"").append(classname).append(".h\"\n\n");
mfile.append("// ").append(shortname).append('\n');
mfile.append(LINE);
mfile.append("@implementation ").append(shortname).append(" (cat_").append(classname).append(");\n\n");
/* Create .h * .m body */
for (Constructor constr : c.getConstructors())
buildMethod(INIT + classname, constr.getParameterTypes(), null, c.getModifiers());
for (Method meth : c.getMethods())
if (meth.getDeclaringClass().getName().equals(jclass))
buildMethod(meth.getName(), meth.getParameterTypes(), meth.getReturnType(), meth.getModifiers());
/* Create footers */
hfile.append("@end\n");
mfile.append("@end\n");
storeBuffer("out/" + classname + ".h", hfile);
storeBuffer("out/" + classname + ".m", mfile);
}
private void buildMethod(String method, Class[] parameters, Class returntype, int type)
{
if ((type & Modifier.PUBLIC) == 0)
return; // Only public elements!
String decl= getMethodDecleration(method, parameters, returntype, type);
hfile.append(decl).append(";\n");
mfile.append(decl).append("\n{\n // TODO: implement code\n}\n\n");
}
private String getMethodDecleration(String method, Class[] parameters, Class returntype, int type)
{
StringBuilder name= new StringBuilder();
StringBuilder params= new StringBuilder();
name.append((type & Modifier.STATIC) == 0 ? "- (" : "+ (");
name.append(getTypeRef(returntype)).append(") ");
name.append(fixName(method));
for (int i= 0; i < parameters.length; i++)
{
Class cc= parameters[i];
String pname= fixName(cc.getName());
name.append(PARAM).append(pname);
params.append(" :").append("(").append(getTypeRef(cc)).append(")").append("a").append(i + 1);
}
name.append(params);
return name.toString();
}
private String getTypeRef(Class type)
{
if (type == null)
return "void";
if (type.isPrimitive())
return type.toString();
else
return fixName(type.getName()) + "*";
}
private String fixName(String oldname)
{
return oldname.replace('.', DOT);
}
private String getShort()
{
String classname= c.getName();
int lastdot= classname.lastIndexOf('.');
return classname.substring(lastdot + 1, classname.length());
}
private boolean storeBuffer(String filename, StringBuilder buffer)
{
FileWriter out= null;
try
{
out= new FileWriter(filename);
out.append(buffer);
out.close();
return true;
}
catch (IOException ex)
{
}
finally
{
try
{
out.close();
}
catch (IOException ex)
{
}
}
return false;
}
}