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/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2013 Eric Lafortune (eric@graphics.cornell.edu)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program 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 General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package proguard;
import proguard.classfile.*;
import proguard.classfile.util.*;
import proguard.classfile.visitor.*;
import java.util.List;
/**
* This class checks if the user has forgotten to fully qualify any classes
* in the configuration.
*
* @author Eric Lafortune
*/
public class FullyQualifiedClassNameChecker
extends SimplifiedVisitor
implements ClassVisitor
{
private final ClassPool programClassPool;
private final ClassPool libraryClassPool;
private final WarningPrinter notePrinter;
/**
* Creates a new FullyQualifiedClassNameChecker.
*/
public FullyQualifiedClassNameChecker(ClassPool programClassPool,
ClassPool libraryClassPool,
WarningPrinter notePrinter)
{
this.programClassPool = programClassPool;
this.libraryClassPool = libraryClassPool;
this.notePrinter = notePrinter;
}
/**
* Checks the classes mentioned in the given class specifications, printing
* notes if necessary.
*/
public void checkClassSpecifications(List classSpecifications)
{
if (classSpecifications != null)
{
for (int index = 0; index < classSpecifications.size(); index++)
{
ClassSpecification classSpecification =
(ClassSpecification)classSpecifications.get(index);
checkType(classSpecification.annotationType);
checkClassName(classSpecification.className);
checkType(classSpecification.extendsAnnotationType);
checkClassName(classSpecification.extendsClassName);
checkMemberSpecifications(classSpecification.fieldSpecifications, true);
checkMemberSpecifications(classSpecification.methodSpecifications, false);
}
}
}
/**
* Checks the classes mentioned in the given class member specifications,
* printing notes if necessary.
*/
private void checkMemberSpecifications(List memberSpecifications, boolean isField)
{
if (memberSpecifications != null)
{
for (int index = 0; index < memberSpecifications.size(); index++)
{
MemberSpecification memberSpecification =
(MemberSpecification)memberSpecifications.get(index);
checkType(memberSpecification.annotationType);
if (isField)
{
checkType(memberSpecification.descriptor);
}
else
{
checkDescriptor(memberSpecification.descriptor);
}
}
}
}
/**
* Checks the classes mentioned in the given class member descriptor,
* printing notes if necessary.
*/
private void checkDescriptor(String descriptor)
{
if (descriptor != null)
{
InternalTypeEnumeration internalTypeEnumeration =
new InternalTypeEnumeration(descriptor);
checkType(internalTypeEnumeration.returnType());
while (internalTypeEnumeration.hasMoreTypes())
{
checkType(internalTypeEnumeration.nextType());
}
}
}
/**
* Checks the class mentioned in the given type (if any),
* printing notes if necessary.
*/
private void checkType(String type)
{
if (type != null)
{
checkClassName(ClassUtil.internalClassNameFromType(type));
}
}
/**
* Checks the specified class (if any),
* printing notes if necessary.
*/
private void checkClassName(String className)
{
if (className != null &&
!containsWildCards(className) &&
programClassPool.getClass(className) == null &&
libraryClassPool.getClass(className) == null &&
notePrinter.accepts(className))
{
notePrinter.print(className,
"Note: the configuration refers to the unknown class '" +
ClassUtil.externalClassName(className) + "'");
String fullyQualifiedClassName =
"**" + ClassConstants.INTERNAL_PACKAGE_SEPARATOR +
className.substring(className.lastIndexOf(ClassConstants.INTERNAL_PACKAGE_SEPARATOR)+1);
ClassNameFilter classNameFilter =
new ClassNameFilter(fullyQualifiedClassName, this);
programClassPool.classesAccept(classNameFilter);
libraryClassPool.classesAccept(classNameFilter);
}
}
private static boolean containsWildCards(String string)
{
return string != null &&
(string.indexOf('!') >= 0 ||
string.indexOf('*') >= 0 ||
string.indexOf('?') >= 0 ||
string.indexOf(',') >= 0 ||
string.indexOf("///") >= 0);
}
// Implementations for ClassVisitor.
public void visitAnyClass(Clazz clazz)
{
System.out.println(" Maybe you meant the fully qualified name '" +
ClassUtil.externalClassName(clazz.getName()) + "'?");
}
}
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