edu.umd.cs.findbugs.detect

Class StaticFieldLoadStreamFactory

java.lang.Object

edu.umd.cs.findbugs.detect.StaticFieldLoadStreamFactory

All Implemented Interfaces:

StreamFactory

public class StaticFieldLoadStreamFactory
extends java.lang.Object
implements StreamFactory

Stream factory for streams created by loading a value from a static field. This is mainly to handle System.in, System.out, and System.err.

Field Summary

Fields

Modifier and Type	Field and Description
java.lang.String	className
java.lang.String	fieldName
java.lang.String	fieldSig
java.lang.String	streamBaseClass

Constructor Summary

Constructors

Constructor and Description
StaticFieldLoadStreamFactory(java.lang.String streamBaseClass, java.lang.String className, java.lang.String fieldName, java.lang.String fieldSig) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
Stream	createStream(Location location, org.apache.bcel.generic.ObjectType type, org.apache.bcel.generic.ConstantPoolGen cpg, RepositoryLookupFailureCallback lookupFailureCallback) Determine if a Stream is created at given location.

Methods inherited from class java.lang.Object

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

Field Detail

streamBaseClass

public java.lang.String streamBaseClass

className

public java.lang.String className

fieldName

public java.lang.String fieldName

fieldSig

public java.lang.String fieldSig

Constructor Detail

StaticFieldLoadStreamFactory

public StaticFieldLoadStreamFactory(java.lang.String streamBaseClass,
                            java.lang.String className,
                            java.lang.String fieldName,
                            java.lang.String fieldSig)

Constructor. Created Stream objects will be marked as uninteresting.

Parameters:

streamBaseClass - the base class of the stream objects created by the factory

className - name of the class containing the static field

fieldName - name of the static field

fieldSig - signature of the static field

Method Detail

createStream

public Stream createStream(Location location,
                  org.apache.bcel.generic.ObjectType type,
                  org.apache.bcel.generic.ConstantPoolGen cpg,
                  RepositoryLookupFailureCallback lookupFailureCallback)

Description copied from interface: StreamFactory

Determine if a Stream is created at given location.

Specified by:

createStream in interface StreamFactory

Parameters:

location - the Location

type - the ObjectType associated with the instruction at the location; the StreamResourceTracker prescreens for TypedInstructions that are associated with ObjectTypes, since they are the only instructions that could conceivably create a stream object

cpg - the ConstantPoolGen for the method

lookupFailureCallback - used to report missing classes in the class hierarchy

Returns:

a Stream created at the Location, or null if no stream is created there