/**
* Take a node list of communities and build the structure from them, delegating to the relevant
* methods in this class for sub-communities and collections
*
* @param context the context of the request
* @param communities a nodelist of communities to create along with their sub-structures
* @param parent the parent community of the nodelist of communities to create
* @return an element array containing additional information regarding the created communities
* (e.g. the handles they have been assigned)
*/
private static Element[] handleCommunities(
Context context, NodeList communities, Community parent) throws Exception {
Element[] elements = new Element[communities.getLength()];
for (int i = 0; i < communities.getLength(); i++) {
Community community;
Element element = new Element("community");
// create the community or sub community
if (parent != null) {
community = parent.createSubcommunity();
} else {
community = Community.create(null, context);
}
// default the short description to be an empty string
community.setMetadata("short_description", " ");
// now update the metadata
Node tn = communities.item(i);
for (Map.Entry<String, String> entry : communityMap.entrySet()) {
NodeList nl = XPathAPI.selectNodeList(tn, entry.getKey());
if (nl.getLength() == 1) {
community.setMetadata(entry.getValue(), getStringValue(nl.item(0)));
}
}
// FIXME: at the moment, if the community already exists by name
// then this will throw a PSQLException on a duplicate key
// violation
// Ideally we'd skip this row and continue to create sub
// communities
// and so forth where they don't exist, but it's proving
// difficult
// to isolate the community that already exists without hitting
// the database directly.
community.update();
// build the element with the handle that identifies the new
// community
// along with all the information that we imported here
// This looks like a lot of repetition of getting information
// from above
// but it's here to keep it separate from the create process in
// case
// we want to move it or make it switchable later
element.setAttribute("identifier", community.getHandle());
Element nameElement = new Element("name");
nameElement.setText(community.getMetadata("name"));
element.addContent(nameElement);
if (community.getMetadata("short_description") != null) {
Element descriptionElement = new Element("description");
descriptionElement.setText(community.getMetadata("short_description"));
element.addContent(descriptionElement);
}
if (community.getMetadata("introductory_text") != null) {
Element introElement = new Element("intro");
introElement.setText(community.getMetadata("introductory_text"));
element.addContent(introElement);
}
if (community.getMetadata("copyright_text") != null) {
Element copyrightElement = new Element("copyright");
copyrightElement.setText(community.getMetadata("copyright_text"));
element.addContent(copyrightElement);
}
if (community.getMetadata("side_bar_text") != null) {
Element sidebarElement = new Element("sidebar");
sidebarElement.setText(community.getMetadata("side_bar_text"));
element.addContent(sidebarElement);
}
// handle sub communities
NodeList subCommunities = XPathAPI.selectNodeList(tn, "community");
Element[] subCommunityElements = handleCommunities(context, subCommunities, community);
// handle collections
NodeList collections = XPathAPI.selectNodeList(tn, "collection");
Element[] collectionElements = handleCollections(context, collections, community);
int j;
for (j = 0; j < subCommunityElements.length; j++) {
element.addContent(subCommunityElements[j]);
}
for (j = 0; j < collectionElements.length; j++) {
element.addContent(collectionElements[j]);
}
elements[i] = element;
}
return elements;
}
/**
* Create a new community
*
* @param context The current DSpace context.
* @param communityID The id of the parent community (-1 for a top-level community).
* @return A process result's object.
*/
public static FlowResult processCreateCommunity(Context context, int communityID, Request request)
throws AuthorizeException, IOException, SQLException {
FlowResult result = new FlowResult();
Community parent = Community.find(context, communityID);
Community newCommunity;
if (parent != null) {
newCommunity = parent.createSubcommunity();
} else {
newCommunity = Community.create(null, context);
}
String name = request.getParameter("name");
String shortDescription = request.getParameter("short_description");
String introductoryText = request.getParameter("introductory_text");
String copyrightText = request.getParameter("copyright_text");
String sideBarText = request.getParameter("side_bar_text");
// If they don't have a name then make it untitled.
if (name == null || name.length() == 0) {
name = "Untitled";
}
// If empty, make it null.
if (shortDescription != null && shortDescription.length() == 0) {
shortDescription = null;
}
if (introductoryText != null && introductoryText.length() == 0) {
introductoryText = null;
}
if (copyrightText != null && copyrightText.length() == 0) {
copyrightText = null;
}
if (sideBarText != null && sideBarText.length() == 0) {
sideBarText = null;
}
newCommunity.setMetadata("name", name);
newCommunity.setMetadata("short_description", shortDescription);
newCommunity.setMetadata("introductory_text", introductoryText);
newCommunity.setMetadata("copyright_text", copyrightText);
newCommunity.setMetadata("side_bar_text", sideBarText);
// Upload the logo
Object object = request.get("logo");
Part filePart = null;
if (object instanceof Part) {
filePart = (Part) object;
}
if (filePart != null && filePart.getSize() > 0) {
InputStream is = filePart.getInputStream();
newCommunity.setLogo(is);
}
// Save everything
newCommunity.update();
context.commit();
// success
result.setContinue(true);
result.setOutcome(true);
result.setMessage(new Message("default", "The community was successfully created."));
result.setParameter("communityID", newCommunity.getID());
return result;
}