/**
* Sets the value of this form control.
*
* <p>The bound instance data is updated and the event sequence for this control is executed.
* Event sequences are described in Chapter 4.6 of XForms 1.0 Recommendation.
*
* @param data the raw data.
* @param filename the filename of the uploaded data.
* @param mediatype the mediatype of the uploaded data.
*/
public void setValue(byte[] data, String filename, String mediatype) throws XFormsException {
if (!isBound()) {
return;
}
String value;
String name = filename;
String type = mediatype;
if (data != null && data.length > 0) {
// get model item datatype
Validator validator = this.model.getValidator();
String datatype = getDatatype();
// convert binary data according to bound datatype
if (validator.isRestricted("base64Binary", datatype)) {
value = new String(Base64.encodeBase64(data, true));
} else if (validator.isRestricted("hexBinary", datatype)) {
value = new String(Hex.encodeHex(data));
} else if (validator.isRestricted("anyURI", datatype)) {
value = new String(data);
} else {
throw new XFormsBindingException(
"datatype not supported by upload control", this.target, datatype);
}
// check mediatype
if (mediatype == null || mediatype.length() == 0) {
type = DEFAULT_MEDIATYPE;
}
} else {
value = "";
name = "";
type = "";
}
// update instance data
Instance instance = this.model.getInstance(getInstanceId());
instance.setNodeValue(getLocationPath(), value);
ModelItem item = instance.getModelItem(getLocationPath());
if (!item.isReadonly()) {
item.setFilename(name);
item.setMediatype(type);
}
// update helper elements
if (this.filenameHelper != null) {
this.filenameHelper.setValue(name);
}
if (this.mediatypeHelper != null) {
this.mediatypeHelper.setValue(type);
}
dispatchValueChangeSequence();
}
/**
* Initializes this upload.
*
* @throws XFormsException if the datatype of the bound is not supported.
*/
protected final void initializeUpload() throws XFormsException {
if (isBound()) {
Instance instance = this.model.getInstance(getInstanceId());
ModelItem item = instance.getModelItem(getLocationPath());
if (this.filenameHelper != null && !item.isReadonly()) {
item.setFilename(this.filenameHelper.getValue());
}
if (this.mediatypeHelper != null && !item.isReadonly()) {
item.setMediatype(this.mediatypeHelper.getValue());
}
}
}