/**
* A real node-function (using the node argument). Returns the next newer node of same type. Also
* a nice example on the difference between core and bridge.
*/
public Object successor() {
if (node == null) throw new IllegalArgumentException("successor is a node-function");
if (cloud != null) {
log.debug("Using bridge (security restrictions will be honoured)");
NodeManager nm = node.getNodeManager();
NodeQuery q = nm.createQuery();
StepField field = q.getStepField(nm.getField("number"));
q.setConstraint(
q.createConstraint(
field, FieldCompareConstraint.GREATER, Integer.valueOf(node.getNumber())));
q.addSortOrder(field, SortOrder.ORDER_ASCENDING);
q.setMaxNumber(1);
NodeIterator i = nm.getList(q).nodeIterator();
return i.hasNext() ? i.nextNode() : null;
} else {
log.debug("Using core.");
throw new UnsupportedOperationException("Core implementation was dropped. See source code.");
/* This is how it would go with core objects
MMObjectBuilder builder = MMBase.getMMBase().getBuilder(node.getNodeManager().getName());
NodeSearchQuery query = new NodeSearchQuery(builder);
StepField field = query.getField(builder.getField("number"));
BasicFieldValueConstraint cons = new BasicFieldValueConstraint(field, node.getNumber());
cons.setOperator(FieldCompareConstraint.GREATER);
query.setConstraint(cons);
query.addSortOrder(field);
query.setMaxNumber(1);
try {
java.util.Iterator<MMObjectNode> i = builder.getNodes(query).iterator();
return i.hasNext() ? i.next() : null;
} catch (Exception e) {
return null;
}
*/
}
}
protected String getProperty(Node node, String key) {
NodeManager properties = node.getCloud().getNodeManager("properties");
Function get = properties.getFunction("get");
Parameters params = get.createParameters();
params.set("node", node);
params.set("key", key);
return (String) get.getFunctionValue(params);
}
protected void setProperty(Node node, String key, String value) {
NodeManager properties = node.getCloud().getNodeManager("properties");
Function set = properties.getFunction("set");
Parameters params = set.createParameters();
params.set("node", node);
params.set("key", key);
if (value.length() > 255) {
value = value.substring(0, 255);
}
params.set("value", value);
set.getFunctionValue(params);
}
private Boolean sendMail(HttpServletRequest req, Node node, String email) {
boolean send = false;
Cloud cloud = node.getCloud();
String emailbuilder = "email";
try {
Module sendmail = cloud.getCloudContext().getModule("sendmail");
emailbuilder = sendmail.getProperty("emailbuilder");
} catch (NotFoundException nfe) {
log.warn("No email module " + nfe);
}
if (cloud.hasNodeManager(emailbuilder)) {
NodeManager nm = cloud.getNodeManager(emailbuilder);
Node message = nm.createNode();
String host = req.getHeader("host");
if (host == null || "".equals(host)) {
try {
host = java.net.InetAddress.getLocalHost().getHostName();
} catch (UnknownHostException uhe) {
log.warn("No host: " + uhe);
}
}
String from = "downloader@" + host;
// do a quick check if we've got something more or less valid
Pattern p = Pattern.compile(".+@.+\\.[a-z]+");
Matcher m = p.matcher(from);
if (!m.matches()) {
from = "*****@*****.**";
}
String mediaTitle = node.getStringValue("title");
String mediaUrl = getProperty(node, URL_KEY);
StringBuilder body = new StringBuilder();
body.append("*This is an automated message / Dit is een geautomatiseerd bericht*");
body.append("\n\n*English*");
body.append("\n\nDear,");
body.append("\n\nWe have received your file belonging to media item titled '")
.append(mediaTitle)
.append("'. ");
body.append("In about 1 hour, you can find your submission at: ");
body.append("http://").append(host).append("/media/").append(node.getNumber());
body.append("\n\nKind regards,");
body.append("\n\n").append(host);
body.append("\n\n\n*Nederlands*");
body.append("\n\nBeste,");
body.append("\n\nWe hebben je bestand voor het media item met de titel '")
.append(mediaTitle)
.append("' ontvangen. ");
body.append("Je kunt je bijdrage hier over circa een uur terugvinden: ");
body.append("http://").append(host).append("/media/").append(node.getNumber());
body.append("\n\nMet vriendelijke groet,");
body.append("\n\n").append(host);
message.setValue("from", from);
message.setValue("to", email);
message.setValue("subject", "Download complete / Download voltooid");
message.setValue("body", body.toString());
message.commit();
Function mail = message.getFunction("mail");
Parameters mail_params = mail.createParameters();
mail_params.set("type", "oneshot");
mail.getFunctionValue(mail_params);
if (log.isDebugEnabled()) {
log.debug("Message download ready send to: " + email);
}
send = true;
} else {
log.warn("Can not send message - no emailbuilder installed.");
}
return send;
}