I have a method in Struts action to deal with sending system-message,so I use Executors.newCachedThreadPool() to call a new thread run that, but when I operate sending again,the thread seemed be dead.Here is my code :
public String sendMessage(){
if(!validateSystemMessage(systemMessage)){
return ERROR;
}
systemMessage.setEnable(false);
systemMessage.setContent(systemMessage.getContent());
systemMessage.setTitle(systemMessage.getTitle());
systemMessage.setMessageTime(new Date());
systemMessageDao.saveOrUpdate(systemMessage);
**ExecutorService executor = Executors.newCachedThreadPool();
SendMessage sendMessage=new SendMessage(systemMessage.getSmId());
LOGGER.info("-- systemMessage---"+systemMessage.getSmId());
sendMessage.setSystemMessageDao(systemMessageDao);
sendMessage.setUserMessageDao(userMessageDao);
String[] ids = userIds.split(",");
LOGGER.info("-- ids.length---"+ids.length);
sendMessage.setUserIds(ids);
executor.submit(sendMessage);**
systemMessage=null;
message=SUCCESS;
return SUCCESS;
}
public class SendMessage implements Callable<Boolean>{
#Override
public Boolean call() throws Exception{
SystemMessage msg = null;
msg = this.systemMessageDao.findSystemMessageById(msgId);
List<Long> userIdsSended = this.userMessageDao.findUserIdsByMsgId(msgId);//thread seemed be dead here
List<Long> listUserIds = new ArrayList<Long>();
for (String userId : userIds) {
Long id=Long.valueOf(userId);
if (userIdsSended != null && userIdsSended.contains(id)) {
continue;
}
listUserIds.add(id);
}
if (listUserIds != null && !listUserIds.isEmpty()) {
this.userMessageDao.save(msgId, listUserIds);
}
msg.setEnable(true);
this.systemMessageDao.saveOrUpdate(msg);
return true;
}
}
public SystemMessage findSystemMessageById(Long smId) {
List<SystemMessage> list = this.getHibernateTemplate().find("from SystemMessage systemMessage where systemMessage.smId = ?", new Object[] { smId });
return list.size() != 0 ? list.get(0) : null;
}
if I send again after few minutes, it run normal, I think the difference is newCachedThreadPool run a new thread .But why in a thread it can't run again? is it the problem with hibernateTemplate or session ?
Related
I need to be able to send an email to the original requester when a PO is created from a Requisition in Acumatica 6.1.
Per Acumatica, the Notification screen cannot handle this functionality, so I have this code to extend the POOrder Entry graph, which sends an email to the Customer's contact email from the Requisition when a PO is created (along with the RQRequisitionEntryExt trigger):
public class POOrderEntryExt : PXGraphExtension<POOrderEntry>
{
private bool sendEmailNotification = false;
public bool SendEmailNotification
{
get
{
return sendEmailNotification;
}
set
{
sendEmailNotification = value;
}
}
[PXOverride]
public void Persist(Action del)
{
using (var ts = new PXTransactionScope())
{
if (del != null)
{
del();
}
if (SendEmailNotification)
{
bool sent = false;
string sError = "Failed to send E-mail.";
try
{
Notification rowNotification = PXSelect<Notification,
Where<Notification.name, Equal<Required<Notification.name>>>>
.Select(Base, "PurchaseOrderNotification");
if (rowNotification == null)
throw new PXException("Notification Template was not found.");
var order = Base.Document.Current;
var requisition = (RQRequisition)PXSelect<RQRequisition,
Where<RQRequisition.reqNbr, Equal<Current<POOrder.rQReqNbr>>>>
.SelectSingleBound(Base, new object[] { order });
if (requisition.CustomerID != null)
{
var customer = (BAccountR)PXSelectorAttribute.Select<RQRequisition.customerID>(
Base.Caches[typeof(RQRequisition)], requisition);
if (customer != null)
{
var defCustContact = (Contact)PXSelectorAttribute.Select<BAccountR.defContactID>(
Base.Caches[typeof(BAccountR)], customer);
if (String.IsNullOrEmpty(defCustContact.EMail))
throw new PXException("E-mail is not specified for Customer Contact.");
var sender = TemplateNotificationGenerator.Create(order,
rowNotification.NotificationID.Value);
sender.RefNoteID = order.NoteID;
sender.MailAccountId = rowNotification.NFrom.HasValue ?
rowNotification.NFrom.Value :
PX.Data.EP.MailAccountManager.DefaultMailAccountID;
sender.To = defCustContact.EMail;
sent |= sender.Send().Any();
}
}
}
catch (Exception Err)
{
sent = false;
sError = Err.Message;
}
if (!sent)
throw new PXException(sError);
}
ts.Complete();
}
}
}
And this to modify RQRequisitionEntry:
public class RQRequisitionEntryExt : PXGraphExtension<RQRequisitionEntry>
{
public PXAction<RQRequisition> createPOOrder;
[PXButton(ImageKey = PX.Web.UI.Sprite.Main.DataEntry)]
[PXUIField(DisplayName = Messages.CreateOrders)]
public IEnumerable CreatePOOrder(PXAdapter adapter)
{
PXGraph.InstanceCreated.AddHandler<POOrderEntry>((graph) =>
{
graph.GetExtension<POOrderEntryExt>().SendEmailNotification = true;
});
return Base.createPOOrder.Press(adapter);
}
}
In order to send an email to the Requester's (Employee) contact email from the Request, I modified the POOrderEntryExt to pull the information from the Request object and the Employee's Contact email (I left the RQRequisitionEntryExt the same and in place):
public class POOrderEntryExt : PXGraphExtension<POOrderEntry>
{
private bool sendEmailNotification = false;
public bool SendEmailNotification
{
get
{
return sendEmailNotification;
}
set
{
sendEmailNotification = value;
}
}
[PXOverride]
public void Persist(Action del)
{
using (var ts = new PXTransactionScope())
{
if (del != null)
{
del();
}
if (SendEmailNotification)
{
bool sent = false;
string sError = "Failed to send E-mail.";
try
{
Notification rowNotification = PXSelect<Notification,
Where<Notification.name, Equal<Required<Notification.name>>>>
.Select(Base, "PurchaseOrderNotification");
if (rowNotification == null)
throw new PXException("Notification Template was not found.");
var order = Base.Document.Current;
var requisition = (RQRequisition)PXSelect<RQRequisition,
Where<RQRequisition.reqNbr, Equal<Current<POOrder.rQReqNbr>>>>
.SelectSingleBound(Base, new object[] { order });
var request = (RQRequest)PXSelectJoin<RQRequest,
InnerJoin<RQRequisitionContent,
On<RQRequisitionContent.orderNbr, Equal<RQRequest.orderNbr>>>,
Where<RQRequisitionContent.reqNbr, Equal<POOrder.rQReqNbr>>>
.SelectSingleBound(Base, new object[] { order });
if (request.EmployeeID != null)
{
var employee = (BAccountR)PXSelectorAttribute.Select<RQRequest.employeeID>(
Base.Caches[typeof(RQRequest)], request);
if (employee != null)
{
var defEmpContact = (Contact)PXSelectorAttribute.Select<BAccountR.defContactID>(
Base.Caches[typeof(BAccountR)], employee);
if (String.IsNullOrEmpty(defEmpContact.EMail))
throw new PXException("E-mail is not specified for Employee Contact.");
var sender = TemplateNotificationGenerator.Create(order,
rowNotification.NotificationID.Value);
sender.RefNoteID = order.NoteID;
sender.MailAccountId = rowNotification.NFrom.HasValue ?
rowNotification.NFrom.Value :
PX.Data.EP.MailAccountManager.DefaultMailAccountID;
sender.To = defEmpContact.EMail;
sent |= sender.Send().Any();
}
else
throw new PXException("Customer not found.");
}
else
throw new PXException("Request not found.");
}
catch (Exception Err)
{
sent = false;
sError = Err.Message;
}
if (!sent)
throw new PXException(sError);
}
ts.Complete();
}
}
}
I can get the original code to send an email in my development environment, but my modified code only returns the outer "Failed to send E-mail" error.
Can anyone help point me in the right direction to get my modifications to work?
Because in Acumatica there is one-to-many relationship between RQRequisition and RQRequest, I believe the better approach is to loop through all requests linked to the current requisition and compose a list of requester's emails. After that we can go ahead and send emails to all requesters as part of the Create Orders operation:
public class POOrderEntryExt : PXGraphExtension<POOrderEntry>
{
private bool sendEmailNotification = false;
public bool SendEmailNotification
{
get
{
return sendEmailNotification;
}
set
{
sendEmailNotification = value;
}
}
[PXOverride]
public void Persist(Action del)
{
using (var ts = new PXTransactionScope())
{
if (del != null)
{
del();
}
if (SendEmailNotification)
{
bool sent = false;
string sError = "Failed to send E-mail.";
try
{
Notification rowNotification = PXSelect<Notification,
Where<Notification.name, Equal<Required<Notification.name>>>>
.Select(Base, "PONotification");
if (rowNotification == null)
throw new PXException("Notification Template was not found.");
var order = Base.Document.Current;
var emails = new List<string>();
var requests = PXSelectJoinGroupBy<RQRequest,
InnerJoin<RQRequisitionContent,
On<RQRequest.orderNbr,
Equal<RQRequisitionContent.orderNbr>>>,
Where<RQRequisitionContent.reqNbr,
Equal<Required<RQRequisition.reqNbr>>>,
Aggregate<GroupBy<RQRequest.orderNbr>>>
.Select(Base, order.RQReqNbr);
foreach (RQRequest request in requests)
{
if (request.EmployeeID != null)
{
var requestCache = Base.Caches[typeof(RQRequest)];
requestCache.Current = request;
var emplOrCust = (BAccountR)PXSelectorAttribute
.Select<RQRequest.employeeID>(requestCache, request);
if (emplOrCust != null)
{
var defEmpContact = (Contact)PXSelectorAttribute
.Select<BAccountR.defContactID>(
Base.Caches[typeof(BAccountR)], emplOrCust);
if (!String.IsNullOrEmpty(defEmpContact.EMail) &&
!emails.Contains(defEmpContact.EMail))
{
emails.Add(defEmpContact.EMail);
}
}
}
}
foreach (string email in emails)
{
var sender = TemplateNotificationGenerator.Create(order,
rowNotification.NotificationID.Value);
sender.RefNoteID = order.NoteID;
sender.MailAccountId = rowNotification.NFrom.HasValue ?
rowNotification.NFrom.Value :
PX.Data.EP.MailAccountManager.DefaultMailAccountID;
sender.To = email;
sent |= sender.Send().Any();
}
}
catch (Exception Err)
{
sent = false;
sError = Err.Message;
}
if (!sent)
throw new PXException(sError);
}
ts.Complete();
}
}
}
can someone please help me, i am relatively new in J2ME coding.... i have an API link which contains username and password (e.g. http://sunday-tech.com/chunghua/api/login.php?username=yasir&password=yasir )
i am trying to authenticate the user inputs and access the API and read the data. I am using httpconnection but i am not sure if its the right one to use.
so far the codes do access and display the contents by reading each character but how do i EXCLUDE commas and brackets as well display the data in an organized manner in the phone. Also, when the username and password inputs are wrong, it should alert Invalid Login......
I would appreciate it so much if someone can enlighten about this by providing some code snippets. here is wht i have done so far.
public class Login extends MIDlet implements CommandListener {
TextField UserName = null;
TextField Password = null;
Form authForm, mainscreen;
TextBox t = null;
StringBuffer b = new StringBuffer();
private Display myDisplay = null;
private Command okCommand = new Command("OK", Command.OK, 1);
private Command exitCommand = new Command("Exit", Command.EXIT, 2);
private Command backCommand = new Command("Back", Command.BACK, 2);
private Alert alert = null;
public Login() {
myDisplay = Display.getDisplay(this);
UserName = new TextField("Username", "", 10, TextField.ANY);
Password = new TextField("Password", "", 10, TextField.ANY);
authForm = new Form("Identification");
mainscreen = new Form("Logging IN");
mainscreen.append("Logging in....");
mainscreen.addCommand(backCommand);
authForm.append(UserName);
authForm.append(Password);
authForm.addCommand(okCommand);
authForm.addCommand(exitCommand);
authForm.setCommandListener(this);
myDisplay.setCurrent(authForm);
}
public void startApp() throws MIDletStateChangeException {
}
public void pauseApp() {
}
protected void destroyApp(boolean unconditional)
throws MIDletStateChangeException {
}
public void commandAction(Command c, Displayable d) {
if ((c == okCommand) && (d == authForm)) {
if (UserName.getString().equals("") || Password.getString().equals("")) {
alert = new Alert("Error", "You should enter Username and Password", null, AlertType.ERROR);
alert.setTimeout(Alert.FOREVER);
myDisplay.setCurrent(alert);
}
else {
//myDisplay.setCurrent(mainscreen);
login(UserName.getString(), Password.getString());
}
}
if ((c == backCommand) && (d == mainscreen)) {
myDisplay.setCurrent(authForm);
}
if ((c == exitCommand) && (d == authForm)) {
notifyDestroyed();
}
}
public void login(String UserName, String PassWord) {
HttpConnection connection = null;
DataInputStream in = null;
String base = "http://sunday-tech.com/chunghua/api/login.php";
String url = base + "?username=" + UserName + "&password=" + PassWord;
OutputStream out = null;
try {
connection = (HttpConnection) Connector.open(url);
connection.setRequestMethod(HttpConnection.POST);
connection.setRequestProperty("IF-Modified-Since", "2 Oct 2002 15:10:15 GMT");
connection.setRequestProperty("User-Agent", "Profile/MIDP-2.1 Configuration/CLDC-1.0");
connection.setRequestProperty("Content-Language", "en-CA");
connection.setRequestProperty("Content-Length", "" + (UserName.length() + PassWord.length()));
connection.setRequestProperty("UserName", UserName);
connection.setRequestProperty("PassWord", PassWord);
out = connection.openDataOutputStream();
out.flush();
in = connection.openDataInputStream();
int ch;
while ((ch = in.read()) != -1) {
b.append((char) ch);
//System.out.println((char)ch);
}
//t = new TextBox("Reply",b.toString(),1024,0);
mainscreen.append(b.toString());
if (in != null) {
in.close();
}
if (out != null) {
out.close();
}
if (connection != null) {
connection.close();
}
} catch (IOException x) {
}
myDisplay.setCurrent(mainscreen);
}
}
I'm trying write application in Jave ME with RMS. Application stores information about courier's customer.
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.rms.*;
import java.io.ByteArrayOutputStream;
import java.io.ByteArrayInputStream;
import java.io.DataOutputStream;
import java.io.DataInputStream;
public class ClientsApp extends MIDlet implements CommandListener {
// controls
private Display screen = null;
private List menu = null;
private Form addClientForm = null;
private Form showClientForm = null;
private RecordStore clients;
private ByteArrayOutputStream stream = null;
private DataOutputStream out = null;
private byte[] dates;
TextField name = null;
TextField surname = null;
TextField email = null;
TextField phone = null;
DateField date = null;
TextField price = null;
TextField description = null;
// comands
private final Command backCommand;
private final Command mainMenuCommand;
private final Command exitCommand;
private final Command addClientCommand;
public ClientsApp() {
// initializating controls and comands
menu = new List("Lista klientów", Choice.IMPLICIT);
backCommand = new Command("Cofnij", Command.BACK, 0);
mainMenuCommand = new Command("Main", Command.SCREEN, 1);
exitCommand = new Command("Koniec", Command.EXIT, 2);
addClientCommand = new Command("Zapisz", Command.OK, 3);
stream = new ByteArrayOutputStream();
out = new DataOutputStream(stream);
menu.append("Dodaj klienta", null);
menu.append("Przegladaj klientow", null);
menu.append("Usun klienta", null);
}
protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
}
protected void pauseApp() {
}
protected void startApp() throws MIDletStateChangeException {
screen = Display.getDisplay(this);
screen.setCurrent(menu);
try {
clients = RecordStore.openRecordStore("clients", false, RecordStore.AUTHMODE_PRIVATE, false);
}
catch(RecordStoreException exc) {
}
menu.addCommand(exitCommand);
menu.setCommandListener(this);
}
public void commandAction(Command cmd, Displayable dsp) {
if(cmd.getCommandType() == Command.EXIT) {
try{
destroyApp(false);
notifyDestroyed();
}
catch(Exception exc) {
exc.printStackTrace();
}
}
else if(cmd.getCommandType() == Command.BACK) {
screen.setCurrent(menu);
}
else if(cmd.getCommandType() == Command.OK) {
try {
out.writeUTF(name.getString());
out.writeUTF(surname.getString());
out.writeUTF(email.getString());
out.writeUTF(phone.getString());
out.writeUTF(date.getDate().toString());
out.writeUTF(price.getString());
out.writeUTF(description.getString());
dates = stream.toByteArray();
clients.addRecord(dates, 0, dates.length);
stream.close();
out.close();
clients.closeRecordStore();
}
catch(Exception exc) {
}
}
else {
List option = (List) screen.getCurrent();
switch(option.getSelectedIndex()) {
case 0 : {
addClients();
break;
}
case 1 : {
showClients();
break;
}
case 2 : {
deleteClients();
break;
}
}
}
}
protected void addClients() {
addClientForm = new Form("Dodaj klienta");
name = new TextField("Imię klienta", "", 10, TextField.ANY);
surname = new TextField("Nazwisko klienta", "", 15, TextField.ANY);
email = new TextField("Email klienta", "", 20, TextField.EMAILADDR);
phone = new TextField("Numer telefonu", "", 12, TextField.PHONENUMBER);
date = new DateField("Data dostarczenia", DateField.DATE);
price = new TextField("Do zapłaty", "", 6, TextField.NUMERIC);
description = new TextField("Uwagi", "", 50, TextField.ANY);
addClientForm.append(name);
addClientForm.append(surname);
addClientForm.append(email);
addClientForm.append(phone);
addClientForm.append(date);
addClientForm.append(price);
addClientForm.append(description);
screen.setCurrent(addClientForm);
addClientForm.addCommand(backCommand);
addClientForm.addCommand(addClientCommand);
addClientForm.setCommandListener(this);
}
protected void showClients() {
TextBox info = new TextBox("Klienci", null, 100, 0);
RecordEnumeration iterator = null;
String str = null;
byte[] temp = null;
try {
iterator = clients.enumerateRecords(null, null, false);
while(iterator.hasNextElement()) {
temp = iterator.nextRecord();
}
for(int i = 0; i < temp.length; i++) {
str += (char) temp[i];
}
System.out.println(str);
clients.closeRecordStore();
}
catch(Exception exc) {
}
info.setString(str);
screen.setCurrent(info);
}
}
Write/read information from RecordStore don't work. I don't have any exception throw. Could somebody help me?
PS Sorry for my bad language.
Are you sure you do not get any exception? Catch blocks are empty...
I see several issues:
Shouldn't you open the record store with createIfNecessary (2nd parameter) set to true?
In ShowClients method, you should use DataInputStream to read items from the record (the byte array 'temp'), the loop over temp is strange. And a check for null 'temp' to avoid NPE when the store is empty is missing too.
On OK command, and also in ShowClients, the store is closed, so next time it will fail with RecordStoreNotOpenException I guess.
I would also consider flushing 'out' stream before calling stream.toByteArray(), although in this case (DataOutputStrea/ByteArrayOutputStream) it is nothing but a good practice..
I'm trying to remove items from a list until its empty with multithreading.
Code:
public void testUsers() {
final List<User> users = userDao.findAll();
final int availableProcessors = Runtime.getRuntime().availableProcessors() * multiplier;
final List<String> loggingList = Lists.newArrayList();
final List<Integer> sizeChecked = Lists.newArrayList();
int totalSizeChecked = 0;
int sizeList = users.size();
ExecutorService executorService = Executors.newFixedThreadPool(availableProcessors);
for (int i = 0; i < availableProcessors; i++) {
createThread(executorService, users, loggingList, sizeChecked);
}
executorService.shutdown();
try {
// wait for all threads to die
executorService.awaitTermination(1, TimeUnit.HOURS);
} catch (InterruptedException ex) {
}
for (Integer count : sizeChecked) {
totalSizeChecked += count;
}
Assert.assertTrue(totalSizeChecked==sizeList);
}
private void createThread(ExecutorService executorService, final List<User> users,
final Collection<String> loggingList, final List<Integer> sizeChecked) {
executorService.execute(new Runnable() {
#Override
public void run() {
int totalChecked = 0;
while (!users.isEmpty()) {
User user = null;
synchronized (users) {
if (!users.isEmpty()) {
user = users.remove(0);
}
}
totalChecked++;
if (user != null) {
String reason = checkUser(user);
if (reason != null) {
loggingList.add(reason);
}
} else {
LOGGER.info("user is null");
}
}
sizeChecked.add(totalChecked);
}
});
}
Now I was thinking this couldn't be so wrong cause I made the list synchronised for removing the first item.
I'm testing with a multiplier of 6.(on prod it will be lowered to 1-2)
I get this in the email :
The batch was not correctly executed.
Size of accounts that must be checked : 28499. Size of accounts that have been checked: 25869
What do I wrong to get it threadsafe?
List<Integer> sizeChecked is not thread safe. Therefore you cannot add elements in parallel in it.
Synchronize your add operation or use a thread-safe structure. If sizeChecked is just a counter, use an AtomicLong instead and make each thread increment it.
Hi i am using Spring ldap , after execution below program It display I am here only and after that nothing is happening, program is in continue execution mode.
public class SimpleLDAPClient {
public static void main(String[] args) {
Hashtable env = new Hashtable();
System.out.println("I am here");
String principal = "uid="+"a502455"+", ou=People, o=ao, dc=com";
env.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
env.put(Context.PROVIDER_URL, "MYURL");
env.put(Context.SECURITY_AUTHENTICATION, "simple");
env.put(Context.SECURITY_PRINCIPAL, principal);
env.put(Context.SECURITY_CREDENTIALS,"PASSWORD");
DirContext ctx = null;
NamingEnumeration results = null;
try {
ctx = new InitialDirContext(env);
System.out.println(" Context" + ctx);
SearchControls controls = new SearchControls();
controls.setSearchScope(SearchControls.SUBTREE_SCOPE);
results = ctx.search("", "(objectclass=aoPerson)", controls);
while (results.hasMore()) {
SearchResult searchResult = (SearchResult) results.next();
Attributes attributes = searchResult.getAttributes();
Attribute attr = attributes.get("cn");
String cn = (String) attr.get();
System.out.println(" Person Common Name = " + cn);
}
} catch (NamingException e) {
throw new RuntimeException(e);
} finally {
if (results != null) {
try {
results.close();
} catch (Exception e) {
}
}
if (ctx != null) {
try {
ctx.close();
} catch (Exception e) {
}
}
}
}
}
Try fixing the below lines, i removed "ao" and it works fine.
results = ctx.search("", "(objectclass=Person)", controls);
You need to give search base as well
env.put(Context.PROVIDER_URL, "ldap://xx:389/DC=test,DC=enterprise,DC=xx,DC=com");
Refer this link as well http://www.adamretter.org.uk/blog/entries/LDAPTest.java