Eclipse EMF load and save Resource

public Resource loadResource(IResource resource) throws IOException {
 ResourceSet resourceSet = new ResourceSetImpl();

 // Get the URI of the model file.
 //
 URI fileURI = URI.createPlatformResourceURI(resource.getFullPath().toString(), true);

 // Create a resource for this file.
 //
 Resource eResource = resourceSet.createResource(fileURI);

 eResource.load(new HashMap());
 return eResource;
}

public void saveResource(Resource eResource) throws IOException {
 // Save only resources that have actually changed.
 //
 Map saveOptions = new HashMap();
 saveOptions.put(Resource.OPTION_SAVE_ONLY_IF_CHANGED, Resource.OPTION_SAVE_ONLY_IF_CHANGED_MEMORY_BUFFER);
 eResource.save(saveOptions);
}