de.uka.ilkd.key.java

Class JavaReduxFileCollection.Walker

java.lang.Object

de.uka.ilkd.key.java.JavaReduxFileCollection.Walker

All Implemented Interfaces:

FileCollection.Walker

Enclosing class:

JavaReduxFileCollection

private class JavaReduxFileCollection.Walker
extends Object
implements FileCollection.Walker

Field Summary

Fields

Modifier and Type	Field and Description
private String	current The currently open resource.
private URL	currentURL The URL of the current resource.
private Iterator<String>	iterator The iterator to wrap, it iterates the resources to open.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	Walker(Iterator<String> iterator)

Method Summary

Modifier and Type	Method and Description
DataLocation	getCurrentDataLocation() get a DataLocation object describing the current file.
String	getCurrentName() get the name of the current file in the iteration.
String	getType() return the type of the structure that is iterated.
InputStream	openCurrent() create a new InputStream for the current element of the iteration.
boolean	step() step to next element in the collection if there is another one.

Methods inherited from class java.lang.Object

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

Field Detail

iterator

private Iterator<String> iterator

The iterator to wrap, it iterates the resources to open.

current

private String current

The currently open resource. null before the first step and after the last step.

currentURL

private URL currentURL

The URL of the current resource.

Constructor Detail

Walker

private Walker(Iterator<String> iterator)

Method Detail

getCurrentDataLocation

public DataLocation getCurrentDataLocation()
                                    throws NoSuchElementException

Description copied from interface: FileCollection.Walker

get a DataLocation object describing the current file. The dynamic type of the result depends on the implementation in use.

Specified by:

getCurrentDataLocation in interface FileCollection.Walker

Returns:

a DataLocation, not null

Throws:

NoSuchElementException - if the previous call to step returned false.

getCurrentName

public String getCurrentName()
                      throws NoSuchElementException

Description copied from interface: FileCollection.Walker

get the name of the current file in the iteration. This is only the short name not including any location data.

Specified by:

getCurrentName in interface FileCollection.Walker

Returns:

a short file name, not null

Throws:

NoSuchElementException - if the previous call to step returned false.

getType

public String getType()

Description copied from interface: FileCollection.Walker

return the type of the structure that is iterated. Must return the same value for any call

Specified by:

getType in interface FileCollection.Walker

Returns:

a non-null String describing the type (e.g. "zip" or "file");

openCurrent

public InputStream openCurrent()
                        throws IOException,
                               NoSuchElementException

Description copied from interface: FileCollection.Walker

create a new InputStream for the current element of the iteration. It is in the user's obligation to close the stream after using it.

Specified by:

openCurrent in interface FileCollection.Walker

Returns:

a freshly created InputStream, the dynamic type depends on the implementation

Throws:

IOException - if the resource cannot be opened

NoSuchElementException - if the previous call to step returned false.

step

public boolean step()

Description copied from interface: FileCollection.Walker

step to next element in the collection if there is another one. The getCurrent...() functions will behave differently after a call to step().

Specified by:

step in interface FileCollection.Walker

Returns:

true iff there is another element in the collection