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/*
* Copyright (c) 2012 Isode Limited, London, England.
* All rights reserved.
*/
/*
* Copyright (c) 2010 Kevin Smith
* All rights reserved.
*/
package com.isode.stroke.serializer.payloadserializers;
import java.util.List;
import com.isode.stroke.elements.Form;
import com.isode.stroke.elements.FormField;
import com.isode.stroke.elements.FormField.BooleanFormField;
import com.isode.stroke.elements.FormField.FixedFormField;
import com.isode.stroke.elements.FormField.GenericFormField;
import com.isode.stroke.elements.FormField.HiddenFormField;
import com.isode.stroke.elements.FormField.JIDMultiFormField;
import com.isode.stroke.elements.FormField.JIDSingleFormField;
import com.isode.stroke.elements.FormField.ListMultiFormField;
import com.isode.stroke.elements.FormField.ListSingleFormField;
import com.isode.stroke.elements.FormField.Option;
import com.isode.stroke.elements.FormField.TextMultiFormField;
import com.isode.stroke.elements.FormField.TextPrivateFormField;
import com.isode.stroke.elements.FormField.TextSingleFormField;
import com.isode.stroke.jid.JID;
import com.isode.stroke.serializer.GenericPayloadSerializer;
import com.isode.stroke.serializer.xml.XMLElement;
import com.isode.stroke.serializer.xml.XMLTextNode;
/**
* Serializer for {@link Form} element.
*/
public class FormSerializer extends GenericPayloadSerializer<Form> {
/**
* Constructor
*/
public FormSerializer() {
super(Form.class);
}
public String serializePayload(Form form) {
if (form == null) {
throw new NullPointerException("'form' must not be null");
}
XMLElement formElement = new XMLElement("x", "jabber:x:data");
String type = form.getType().getStringForm();
formElement.setAttribute(Form.FORM_ATTRIBUTE_TYPE, type);
if (!form.getTitle().isEmpty()) {
multiLineify(form.getTitle(), Form.FORM_ELEMENT_TITLE, formElement);
}
if (!form.getInstructions().isEmpty()) {
multiLineify(form.getInstructions(),
Form.FORM_ELEMENT_INSTRUCTIONS, formElement);
}
for (FormField field : form.getFields()) {
formElement.addNode(fieldToXML(field));
}
return formElement.serialize();
}
private XMLElement fieldToXML(FormField field) {
if (field == null) {
throw new NullPointerException("'field' must not be null");
}
XMLElement fieldElement = new XMLElement(Form.FORM_ELEMENT_FIELD);
if (!field.getName().isEmpty()) {
fieldElement.setAttribute(FormField.FORM_FIELD_ATTRIBUTE_VAR, field
.getName());
}
if (!field.getLabel().isEmpty()) {
fieldElement.setAttribute(FormField.FORM_FIELD_ATTRIBUTE_LABEL,
field.getLabel());
}
if (field.getRequired()) {
fieldElement.addNode(new XMLElement(
FormField.FORM_FIELD_ELEMENT_REQUIRED));
}
if (!field.getDescription().isEmpty()) {
XMLElement descriptionElement = new XMLElement(
FormField.FORM_FIELD_ELEMENT_DESC);
descriptionElement.addNode(new XMLTextNode(field.getDescription()));
fieldElement.addNode(descriptionElement);
}
// Set the value and type
String fieldType = "";
if (field instanceof BooleanFormField) {
fieldType = FormField.FORM_FIELD_TYPE_BOOLEAN;
XMLElement valueElement = new XMLElement(
FormField.FORM_FIELD_ELEMENT_VALUE);
valueElement.addNode(XMLTextNode.create(((BooleanFormField) field)
.getValue() ? "1" : "0"));
fieldElement.addNode(valueElement);
} else if (field instanceof FixedFormField) {
fieldType = FormField.FORM_FIELD_TYPE_FIXED;
serializeValueAsString((FixedFormField) field, fieldElement);
} else if (field instanceof HiddenFormField) {
fieldType = FormField.FORM_FIELD_TYPE_HIDDEN;
serializeValueAsString((HiddenFormField) field, fieldElement);
} else if (field instanceof ListSingleFormField) {
fieldType = FormField.FORM_FIELD_TYPE_LIST_SINGLE;
serializeValueAsString((ListSingleFormField) field, fieldElement);
} else if (field instanceof TextPrivateFormField) {
fieldType = FormField.FORM_FIELD_TYPE_TEXT_PRIVATE;
serializeValueAsString((TextPrivateFormField) field, fieldElement);
} else if (field instanceof TextSingleFormField) {
fieldType = FormField.FORM_FIELD_TYPE_TEXT_SINGLE;
serializeValueAsString((TextSingleFormField) field, fieldElement);
} else if (field instanceof JIDMultiFormField) {
fieldType = FormField.FORM_FIELD_TYPE_JID_MULTI;
List<JID> jids = ((JIDMultiFormField) (field)).getValue();
for (JID jid : jids) {
XMLElement valueElement = new XMLElement(
FormField.FORM_FIELD_ELEMENT_VALUE);
valueElement.addNode(XMLTextNode.create(jid.toString()));
fieldElement.addNode(valueElement);
}
} else if (field instanceof JIDSingleFormField) {
fieldType = FormField.FORM_FIELD_TYPE_JID_SINGLE;
XMLElement valueElement = new XMLElement(
FormField.FORM_FIELD_ELEMENT_VALUE);
JIDSingleFormField jidSingleFormField = (JIDSingleFormField) field;
valueElement.addNode(XMLTextNode.create(jidSingleFormField
.getValue().toString()));
fieldElement.addNode(valueElement);
} else if (field instanceof ListMultiFormField) {
fieldType = FormField.FORM_FIELD_TYPE_LIST_MULTI;
List<String> lines = ((ListMultiFormField) (field)).getValue();
for (String line : lines) {
XMLElement valueElement = new XMLElement(
FormField.FORM_FIELD_ELEMENT_VALUE);
valueElement.addNode(XMLTextNode.create(line));
fieldElement.addNode(valueElement);
}
} else if (field instanceof TextMultiFormField) {
fieldType = FormField.FORM_FIELD_TYPE_TEXT_MULTI;
multiLineify(((TextMultiFormField) field).getValue(),
FormField.FORM_FIELD_ELEMENT_VALUE, fieldElement);
} else {
assert (false);
}
if (!fieldType.isEmpty()) {
fieldElement.setAttribute(FormField.FORM_FIELD_ATTRIBUTE_TYPE,
fieldType);
}
for (Option option : field.getOptions()) {
XMLElement optionElement = new XMLElement(
FormField.FORM_FIELD_ELEMENT_OPTION);
if (!option.label.isEmpty()) {
optionElement.setAttribute(
FormField.FORM_FIELD_ATTRIBUTE_OPTION_LABEL,
option.label);
}
XMLElement valueElement = new XMLElement(
FormField.FORM_FIELD_ELEMENT_OPTION_VALUE);
valueElement.addNode(XMLTextNode.create(option.value));
optionElement.addNode(valueElement);
fieldElement.addNode(optionElement);
}
return fieldElement;
}
private void multiLineify(String text, String elementName,
XMLElement element) {
if (text == null) {
throw new NullPointerException("'text' must not be null");
}
if (elementName == null) {
throw new NullPointerException("'elementName' must not be null");
}
String unRdText = text.replaceAll("\r", "");
String[] lines = unRdText.split("\n");
for (String line : lines) {
XMLElement lineElement = new XMLElement(elementName);
lineElement.addNode(new XMLTextNode(line));
element.addNode(lineElement);
}
}
private static void serializeValueAsString(GenericFormField<String> field,
XMLElement parent) {
String value = field.getValue();
// FIXME with the proper fix after Swiften is fixed: if (!value.isEmpty()) {
XMLElement valueElement = new XMLElement(
FormField.FORM_FIELD_ELEMENT_VALUE);
valueElement.addNode(XMLTextNode.create(value));
parent.addNode(valueElement);
// }
}
@Override
public String toString() {
return FormSerializer.class.getSimpleName();
}
}
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