com.puppycrawl.tools.checkstyle.checks
Class ClassResolver

java.lang.Object
  com.puppycrawl.tools.checkstyle.checks.ClassResolver

public class ClassResolver

extends java.lang.Object

Utility class to resolve a class name to an actual class. Note that loaded classes are not initialized.

Limitations: this does not handle inner classes very well.

Version:

1.0

Author:

Oliver Burn

Constructor Summary

ClassResolver(java.lang.ClassLoader aLoader, java.lang.String aPkg, java.util.Set aImports)
Creates a new ClassResolver instance.

Method Summary

boolean	isLoadable(java.lang.String aName)
java.lang.Class	resolve(java.lang.String aName, java.lang.String aCurrentClass) Attempts to resolve the Class for a specified name.
java.lang.Class	safeLoad(java.lang.String aName) Will load a specified class is such a way that it will NOT be initialised.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ClassResolver

public ClassResolver(java.lang.ClassLoader aLoader,
                     java.lang.String aPkg,
                     java.util.Set aImports)

Creates a new ClassResolver instance.

Parameters:

aLoader - the ClassLoader to load classes with.

aPkg - the name of the package the class may belong to

aImports - set of imports to check if the class belongs to

Method Detail

resolve

public java.lang.Class resolve(java.lang.String aName,
                               java.lang.String aCurrentClass)
                        throws java.lang.ClassNotFoundException

Attempts to resolve the Class for a specified name. The algorithm is to check: - fully qualified name - explicit imports - enclosing package - star imports

Parameters:

aName - name of the class to resolve

aCurrentClass - name of current class (for inner classes).

Returns:

the resolved class

Throws:

java.lang.ClassNotFoundException - if unable to resolve the class

isLoadable

public boolean isLoadable(java.lang.String aName)

Parameters:

aName - name of the class to check

Returns:

whether a specified class is loadable with safeLoad().

safeLoad

public java.lang.Class safeLoad(java.lang.String aName)
                         throws java.lang.ClassNotFoundException

Will load a specified class is such a way that it will NOT be initialised.

Parameters:

aName - name of the class to load

Returns:

the Class for the specified class

Throws:

java.lang.ClassNotFoundException - if an error occurs