org.eclipse.emf.mwe.core
Class WorkflowComponentHelper

java.lang.Object
  org.eclipse.emf.mwe.core.WorkflowComponentHelper

public class WorkflowComponentHelper
extends java.lang.Object

Helper class that provides some utility methods for workflow components.

Constructor Summary

WorkflowComponentHelper()

Method Summary

static boolean	isLegalDir(java.lang.String dirname) Proves if the argument points to a existent directory (not file!).
static boolean	isLegalFile(java.lang.String filename) Proves if the filename points to a existent file (not directory!).
static boolean	isLegalURL(java.lang.String url) Proves if the given string is a valid URL.
static boolean	isLoadableClass(java.lang.String classname) Proves that a class could be loaded.
static boolean	isParamSet(java.lang.String param) Convenience method that proves if a parameter is set.
static boolean	isResource(java.lang.String uri) Proves if the given name is a valid resource.
static boolean	isResource(java.lang.String uri, java.lang.String contextClassName) Proves if the given name is a valid resource.

Methods inherited from class java.lang.Object

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

Constructor Detail

WorkflowComponentHelper

public WorkflowComponentHelper()

Method Detail

isLegalFile

public static boolean isLegalFile(java.lang.String filename)

Proves if the filename points to a existent file (not directory!).

Parameters:

filename - Path to a file

Returns:

true if the path points to a file, false if the file does not exist or is a directory.

isLegalDir

public static boolean isLegalDir(java.lang.String dirname)

Proves if the argument points to a existent directory (not file!).

Parameters:

dirname - Path to a directory

Returns:

true if the path points to a directory, false if the directory does not exist or is a file.

isLegalURL

public static boolean isLegalURL(java.lang.String url)

Proves if the given string is a valid URL. This method tries to open the URL to check its validity.

Parameters:

url - An URL as String

Returns:

true if the string is a valid URL, otherwise false.

isResource

public static boolean isResource(java.lang.String uri)

Proves if the given name is a valid resource. This method tries to open a URL connection to the resource. The resource is located via the Thread Context ClassLoader.

Parameters:

uri - A resource identifier

Returns:

true if the given URI points to a valid resource, otherwise false.

isResource

public static boolean isResource(java.lang.String uri,
                                 java.lang.String contextClassName)

Proves if the given name is a valid resource. This method tries to open a URL connection to the resource. The resource is located as a class resource.

Parameters:

uri - A resource identifier

contextClassName - The class whose resource is tested

Returns:

true if the given URI points to a valid resource, otherwise false.

isParamSet

public static boolean isParamSet(java.lang.String param)

Convenience method that proves if a parameter is set.

Parameters:

param - The parameter

Returns:

true if the given parameter string is not null.

isLoadableClass

public static boolean isLoadableClass(java.lang.String classname)

Proves that a class could be loaded.

Parameters:

classname - The classname to check

Returns:

true if the class was successfully loaded