There is some big chunk of code on old server(java 1.6.025). It builds sql query. It has too many dependencies with other classes, and I can't just take it out and test standalone.
So I decided to just run it AS-IS on server except inject some "send.Email()" code and just see what it does.
sb.append("</key>");
}
sb.append("</" + st.tableName + ">");
sb.append("</" + s + ">");
}
sb.append("</" + this.select.selectName + ">");
// XMLFunctions.addInfo("sb before os.write " + sb.toString());
this.os.write(sb.toString().getBytes("utf-8"));
//CODE HERE
}
catch (UnsupportedEncodingException e) {
XMLFunctions.addWarning((String)(String.valueOf(e.getClass().getCanonicalName()) + ": " + e.getMessage()));
}
What code would work on java6?
EDIT: my class does not have main() where I can initialize email properties..
Related
I am using BaseX (XML based datastore) for its performance benchmarking. For testing it with ,
TestBeds
I) 10,000 users, 10 friends, 10 resources
II) 100,000 users , 10 friends, 10 resources
I faced below issues:
1) Loading of data is too slow. Gets slowed with eh increase in the number of threads.
2) Plus point - Reading/retriving values from BaseX is faster (17k operation per second)
3) Updating the data in BaseX is very slow. Throughput is ~10 operations per second.
Am I correct to say BaseX is 'TOO' slow for write/update operations (20/sec) compared to read/retrieve (10k/sec)?
Please advice me to make it more efficient for the write and update :
I have a function insertEntity (update or insert function) in to the BaseX datastore as follows -
public int insertEntity(String entitySet, String entityPK,
HashMap<String, ByteIterator> values, boolean insertImage) {
String parentTag ="",childTag ="", key="", entryTag="";
StringBuffer insertData = new StringBuffer();
Set<String> keys = values.keySet();
Iterator<String> iterator = keys.iterator();
while(iterator.hasNext()) {
String entryKey = iterator.next();
if(!(entryKey.equalsIgnoreCase("pic") || entryKey.equalsIgnoreCase("tpic")))
insertData.append("element " + entryKey + " {\"" + StringEscapeUtils.escapeXml(values.get(entryKey).toString()) + "\"},");
}
if(entitySet.equalsIgnoreCase("users")&& insertImage){
byte[] profileImage = ((ObjectByteIterator)values.get("pic")).toArray();
String encodedpImage = DatatypeConverter.printBase64Binary(profileImage);
insertData.append(" element pic {\"" + encodedpImage + "\"},");
profileImage = ((ObjectByteIterator)values.get("tpic")).toArray();
encodedpImage = DatatypeConverter.printBase64Binary(profileImage);
insertData.append(" element tpic {\"" + encodedpImage + "\"},");
}
if(entitySet.equalsIgnoreCase("users"))
{
parentTag = "users";
childTag = "members";
entryTag = "member";
key = "mem_id";
insertData.append("element confirmed_friends {}, element pending_friends {}");
}
if(entitySet.equalsIgnoreCase("resources"))
{
parentTag = "resources";
childTag = "resources";
entryTag = "resource";
key = "rid";
insertData.append("element manipulations {}");
}
try {
session.execute(new XQuery(
"insert node element " + entryTag
+ "{ attribute " + key + "{"
+ entityPK + "}, "
+ insertData.toString()
+ "} "
+ "into doc('" + databaseName + "/" + parentTag +".xml')/" + childTag
));
String q1 = "insert node element " + entryTag
+ "{ attribute " + key + "{"
+ entityPK + "}, "
+ insertData.toString()
+ "} "
+ "into doc('" + databaseName + "/" + parentTag +".xml')/" + childTag;
System.out.println(q1);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return 0;
}
And the below function is acceptFriendship (update function)
public int acceptFriend(int inviterID, int inviteeID) {
// TODO Auto-generated method stub
String acceptFriendQuery1 = "insert node <confirmed_friend id = '"
+ inviterID + "'>"
+ " </confirmed_friend>"
+ "into doc('"+databaseName+"/users.xml')/members/member[#mem_id = '"+inviteeID+"']/confirmed_friends";
String acceptFriendQuery2 = "insert node <confirmed_friend id = '"
+ inviteeID + "'>"
+ " </confirmed_friend>"
+ "into doc('"+databaseName+"/users.xml')/members/member[#mem_id = '"+inviterID+"']/confirmed_friends";
String acceptFriendQuery3 = "delete node doc('"+databaseName+"/users.xml')/members/member[#mem_id = '"
+ inviteeID + "']/pending_friends/pending_friend[#id = '"+ inviterID +"']";
try {
session.execute(new XQuery(acceptFriendQuery1));
session.execute(new XQuery(acceptFriendQuery2));
session.execute(new XQuery(acceptFriendQuery3));
System.out.println("Inviter: "+inviterID +" AND Invitee: "+inviteeID);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return 0;
}
Okay, I guess I'm stuck here. Can't get the values from the file to show in JOptionPane's message dialog box where it's enclosed within a while loop.
Right now I don't know which method of Input/Output stream to use to display all the data on this file which I believed to be serialized as UTF8??
Please tell me what to do and what things I missed since I'm new to java.io classes.
Also, the file StudentData.feu was just given to me. It's not that I don't want to research on my own because I already did, I'm just stuck. I read the Javadoc but I'm clueless right now.
import java.io.*;
import javax.swing.JOptionPane;
public class MyProj {
public void showMenu() {
String choice = JOptionPane.showInputDialog
(null, "Please enter a number: " + "\n[1] All Students" + "\n[2] BSCS Students" + "\n[3] BSIT Students"
+ "\n[4] BSA Students" + "\n[5] First Year Students" + "\n[6] Second Year Students" + "\n[7] Third Year Students"
+ "\n[8] Passed Students" + "\n[9] Failed Students" + "\n[0] Exit");
int choiceConvertedString = Integer.parseInt(choice);
switch(choiceConvertedString){
case 0:
JOptionPane.showMessageDialog(null, "Program closed!");
System.exit(1);
break;
}
}
DataInputStream myInputStream;
OutputStream myOutputStream;
int endOfFile = -1;
double grades;
int studentNo;
int counter;
String studentName;
String studentCourse;
public void readFile()
{
try
{
myInputStream = new DataInputStream
(new FileInputStream("C:\\Users\\Jordan's Pc\\Documents\\NetBeansProjects\\MyProj\\StudentData.feu"));
try{
while((counter=myInputStream.read()) != endOfFile)
{
studentName = myInputStream.readUTF();
studentCourse = myInputStream.readUTF();
grades = myInputStream.readDouble();
JOptionPane.showMessageDialog
(null, "StdNo: " + studentNo + "\n"
+ "Student Name: " + studentName + "\n"
+ "Student Course: " + studentCourse + "\n"
+ "Grades: " + grades);
}
}
catch(FileNotFoundException fnf){
JOptionPane.showMessageDialog(null, "File Not Found");
}
}/* end of try */
catch(EOFException ex)
{
JOptionPane.showMessageDialog(null, "Processing Complete");
}
catch(Exception e)
{
JOptionPane.showMessageDialog(null, "An error occured");
}
}
}
while((counter=myInputStream.read()) != endOfFile)
The problem is probably here. You're reading a byte and then throwing it away. It isn't likely that the file contains extra bytes like this that are intended to be thrown away. The correct loop would go like this:
try
{
for (;;)
{
// .... readUTF() etc
}
}
catch (EOFException exc)
{
// You've read to end of file.
}
// catch IOException etc.
I have a Spring MVC REST service that accepts two #RequestParams called from and to. These are parsed as java.util.Date and passed to the following method in my DAO class.
#Override
public List<ErrorsDTOEntity> getAllErrors(Date from, Date to) {
try {
Query query = getSession().createQuery(
"SELECT NEW com.mydomain.esb.jpa.dto.ErrorsDTOEntity(ee, ec.message) "
+ "FROM ErrorsEntity ee, EventCodeEntity ec "
+ "WHERE ee.responseTime > " + from.getTime() + " "
+ "AND ee.responseTime < " + to.getTime() + " "
+ "AND ee.serviceResponseCode = ec.code "
+ "GROUP BY ee.domainName, ee.serviceName, ec.message, ee.serviceErrorCount, ee.errorTimestamp, "
+ "ee.deviceName, ee.servErrId, ee.serviceResponseCode, ee.elapsedTime, ee.forwardTime, "
+ "ee.responseCompletionTime, ee.responseSizeAverage, ee.requestSizeAverage, ee.responseTime "
+ "ORDER BY ee.domainName, ee.serviceName, ec.message, ee.errorTimestamp");
#SuppressWarnings("unchecked")
List<ErrorsDTOEntity> services = (List<ErrorsDTOEntity>) query.list();
return services;
} catch (HibernateException hex) {
hex.printStackTrace();
}
return null;
}
This is throwing the following SQL error:
org.hibernate.exception.SQLGrammarException: ORA-00932: inconsistent datatypes: expected TIMESTAMP got NUMBER
What's the proper way to structure this query so I can only fetch results between the from and to dates?
I figured it out, this works:
#Override
public List<ErrorsDTOEntity> getAllErrors(Date from, Date to) {
try {
Query query = getSession().createQuery(
"SELECT NEW com.mydomain.esb.jpa.dto.ErrorsDTOEntity(ee, ec.message) "
+ "FROM ErrorsEntity ee, EventCodeEntity ec "
+ "WHERE ee.responseTime > :from "
+ "AND ee.responseTime < :to "
+ "AND ee.serviceResponseCode = ec.code "
+ "GROUP BY ee.domainName, ee.serviceName, ec.message, ee.serviceErrorCount, ee.errorTimestamp, "
+ "ee.deviceName, ee.servErrId, ee.serviceResponseCode, ee.elapsedTime, ee.forwardTime, "
+ "ee.responseCompletionTime, ee.responseSizeAverage, ee.requestSizeAverage, ee.responseTime "
+ "ORDER BY ee.domainName, ee.serviceName, ec.message, ee.errorTimestamp");
query.setTimestamp("from", from);
query.setTimestamp("to", to);
#SuppressWarnings("unchecked")
List<ErrorsDTOEntity> services = (List<ErrorsDTOEntity>) query.list();
return services;
} catch (HibernateException hex) {
hex.printStackTrace();
}
return null;
}
I'am trying convert my Java EE 5 (GlassFish v2, Metro 2.1.1) application to Java EE 6 (GlassFish 3.1.2, Metro 2.2.1-1). I have problem with webservice client, which security is based on JAXRPCSecuirty. JAXRPCSecurity configuration:
private final static String SECURITY_CONFIG =
"<?xml version=\"1.0\" encoding=\"UTF-8\"?> "+
"<xwss:JAXRPCSecurity xmlns:xwss=\"http://java.sun.com/xml/ns/xwss/config\"> " +
" <xwss:Service> " +
" <xwss:SecurityConfiguration dumpMessages=\"true\"> " +
" <xwss:Sign includeTimestamp=\"false\"> " +
" <xwss:X509Token certificateAlias=\"certificate_alias\" /> " +
" <xwss:CanonicalizationMethod disableInclusivePrefix=\"true\" /> " +
" <xwss:SignatureTarget type=\"xpath\" value=\"//SOAP-ENV:Body\"> " +
" <xwss:Transform algorithm=\"http://www.w3.org/2001/10/xml-exc-c14n#\" " +
" disableInclusivePrefix=\"true\" /> " +
" </xwss:SignatureTarget> " +
" </xwss:Sign> " +
" </xwss:SecurityConfiguration> " +
" </xwss:Service> " +
" <xwss:SecurityEnvironmentHandler> " +
" SecurityCallbackHandler " +
" </xwss:SecurityEnvironmentHandler> " +
"</xwss:JAXRPCSecurity>";
And how I set this configuration to webservice client:
public void configureSecurity() throws SITAWebServiceException {
String JAXRPCSecurityXML = completeJAXRPCSecurityXML(alias, keyStore, callbackHandler, dumpMessage);
byte[] JAXRPCSecurityXMLBytes = convertJAXRPSecurityXMLToBytes(JAXRPCSecurityXML);
XWSSecurityConfiguration sc = createXWSSecurityConfiguration(JAXRPCSecurityXMLBytes);
((BindingProvider) port).getRequestContext().put(XWSSecurityConfiguration.MESSAGE_SECURITY_CONFIGURATION, sc);
}
private XWSSecurityConfiguration createXWSSecurityConfiguration(final byte[] JAXRPCSecurityXML) throws SITAWebServiceException {
InputStream is = new ByteArrayInputStream(JAXRPCSecurityXML);
try {
return new SecurityConfiguration(is);
} catch (XWSSecurityException e) {
throw new SITAWebServiceException("XWSSecurityConfiguration problem.", e);
} finally {
closeInputStream(is);
}
}
With GlassFish v2 and Metro 2.1.1, everything works fine. But GlassFish 3 uses OSGi based Metro (webservices-api-osgi and webservice-osgi) and classes from package com.sun.xml.xwss are no longer visible (isn't exproted) so I constantly get this Exception:
java.lang.NoClassDefFoundError: com/sun/xml/xwss/XWSSecurityConfiguration
Is there some solution how export package com.sun.xml.xwss or way how to change JAXRPCSecurity to something other/better?
Thanks.
This is a weird situation and I normally would never do it but our system has unfortunately now required this kind of scenario.
The System
We are running a Spring/Hibernate applications that is using OpenSessionInView and TransactionInterceptor to manage our transactions. For the most part it works great. However, we have recently required the need to spawn a number of threads to make some concurrent HTTP requests to providers.
The Problem
We need the entity that is passed into the thread to have all of the data that we have updated in our current transaction. The problem is we spawn the thread deep down in the guts of our service layer and it's very difficult to make a smaller transaction to allow this work. We tried originally just passing the entity to the thread and just calling:
leadDao.update(lead);
The problem is that we than get the error about the entity living in two sessions. Next we try to commit the original transaction and reopen as soon as the threads are complete.
This is what I have listed here.
try {
logger.info("------- BEGIN MULTITHREAD PING for leadId:" + lead.getId());
start = new Date();
leadDao.commitTransaction();
List<Future<T>> futures = pool.invokeAll(buyerClientThreads, lead.getAffiliate().getPingTimeout(), TimeUnit.SECONDS);
for (int i = 0; i < futures.size(); i++) {
Future<T> future = futures.get(i);
T leadStatus = null;
try {
leadStatus = future.get();
if (logger.isDebugEnabled())
logger.debug("Retrieved results from thread buyer" + leadStatus.getLeadBuyer().getName() + " leadId:" + leadStatus.getLead().getId() + " time:" + DateUtils.formatDate(start, "HH:mm:ss"));
} catch (CancellationException e) {
leadStatus = extractErrorPingLeadStatus(lead, "Timeout - CancellationException", buyerClientThreads.get(i).getBuyerClient().getLeadBuyer(), buyerClientThreads.get(i).getBuyerClient().constructPingLeadStatusInstance());
leadStatus.setTimeout(true);
leadStatus.setResponseTime(new Date().getTime() - start.getTime());
logger.debug("We had a ping that didn't make it in time");
}
if (leadStatus != null) {
completed.add(leadStatus);
}
}
} catch (InterruptedException e) {
logger.debug("There was a problem calling the pool of pings", e);
} catch (ExecutionException e) {
logger.error("There was a problem calling the pool of pings", e);
}
leadDao.beginNewTransaction();
The begin transaction looks like this:
public void beginNewTransaction() {
if (getCurrentSession().isConnected()) {
logger.info("Session is not connected");
getCurrentSession().reconnect();
if (getCurrentSession().isConnected()) {
logger.info("Now connected!");
} else {
logger.info("STill not connected---------------");
}
} else if (getCurrentSession().isOpen()) {
logger.info("Session is not open");
}
getCurrentSession().beginTransaction();
logger.info("BEGINNING TRANSAACTION - " + getCurrentSession().getTransaction().isActive());
}
The threads are using TransactionTemplates since my buyerClient object is not managed by spring (long involved requirements).
Here is that code:
#SuppressWarnings("unchecked")
private T processPing(Lead lead) {
Date now = new Date();
if (logger.isDebugEnabled()) {
logger.debug("BEGIN PINGING BUYER " + getLeadBuyer().getName() + " for leadId:" + lead.getId() + " time:" + DateUtils.formatDate(now, "HH:mm:ss:Z"));
}
Object leadStatus = transaction(lead);
if (logger.isDebugEnabled()) {
logger.debug("PING COMPLETE FOR BUYER " + getLeadBuyer().getName() + " for leadId:" + lead.getId() + " time:" + DateUtils.formatDate(now, "HH:mm:ss:Z"));
}
return (T) leadStatus;
}
public T transaction(final Lead incomingLead) {
final T pingLeadStatus = this.constructPingLeadStatusInstance();
Lead lead = leadDao.fetchLeadById(incomingLead.getId());
T object = transactionTemplate.execute(new TransactionCallback<T>() {
#Override
public T doInTransaction(TransactionStatus status) {
Date startTime = null, endTime = null;
logger.info("incomingLead obfid:" + incomingLead.getObfuscatedAffiliateId() + " affiliateId:" + incomingLead.getAffiliate().getId());
T leadStatus = null;
if (leadStatus == null) {
leadStatus = filterLead(incomingLead);
}
if (leadStatus == null) {
leadStatus = pingLeadStatus;
leadStatus.setLead(incomingLead);
...LOTS OF CODE
}
if (logger.isDebugEnabled())
logger.debug("RETURNING LEADSTATUS FOR BUYER " + getLeadBuyer().getName() + " for leadId:" + incomingLead.getId() + " time:" + DateUtils.formatDate(new Date(), "HH:mm:ss:Z"));
return leadStatus;
}
});
if (logger.isDebugEnabled()) {
logger.debug("Transaction complete for buyer:" + getLeadBuyer().getName() + " leadId:" + incomingLead.getId() + " time:" + DateUtils.formatDate(new Date(), "HH:mm:ss:Z"));
}
return object;
}
However, when we begin our new transaction we get this error:
org.springframework.transaction.TransactionSystemException: Could not commit Hibernate transaction; nested exception is org.hibernate.TransactionException: Transaction not successfully started
at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:660)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:754)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:723)
at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:393)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:120)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:90)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
My Goal
My goal is to be able to have that entity fully initalized on the other side or Does anyone have any ideas on how I can commit the data to the database so the thread can have a fully populated object. Or, have a way to query for a full object?
Thanks I know this is really involved. I apologize if I haven't been clear enough.
I have tried
Hibernate.initialize()
saveWithFlush()
update(lead)
I didn't follow everything - you can try one of this to workaround the issue that you get about the same object being associated with two sessions.
// do this in the main thread to detach the object
// from the current session
// if it has associations that also need to be handled the cascade=evict should
// be specified. Other option is to do flush & clear on the session.
session.evict(object);
// pass the object to the other thread
// in the other thread - use merge
session.merge(object)
Second approach - create a deep copy of the object and pass the copy. This can be easily achieved if your entity classes are serializable - just serialize the object and deserialize.
Thanks #gkamal for your help.
For everyone living in posterity. The answer to my dilemma was a left over call to hibernateTemplate instead of getCurrentSession(). I made the move about a year and a half ago and for some reason missed a few key places. This was generating a second transaction. After that I was able to use #gkamal suggestion and evict the object and grab it again.
This post helped me figure it out:
http://forum.springsource.org/showthread.php?26782-Illegal-attempt-to-associate-a-collection-with-two-open-sessions