# prabhu pandurangan

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since May 23, 2008
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## Recent posts by prabhu pandurangan

best way to implement this??
8 years ago
Hi Team,

I have a json object as below, i have to iterate the object and get the unique list of 'label' {label1, label2} and when i select the label 'label1' i need to get the unique list of 'id' {121, 122} and when i select the id '121' i need to get the unique list of 'ip' from the 'items' and when i select the ip ''xx.xx.xx1' i need to get the unique list of 'descirption'

so when i select label1 -- id: {121, 122} -- and on selecting id - 121 -- i should display list of 'ip' for this combination { 'xx.xx.1', 'xx.xx.xx2', 'xx.xx.8'} and when i select the ip - 'xx.xx.1' i should display the list of 'desc' { 'xxxx', 'yyyy', 'aaaa'}

Let me know how i can implement this in java with high performance and scalability.

8 years ago
Hi Camphell,

What do you mean by specification here?

Here is my specification: "How to get the elements between 3 and 11? in the given array [12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0] ".

Please Ranch Hand's with proper solution or direct them in a right way; instead of giving a reply like this 'Start by writing down on paper which numbers are between start = 7 and end = 5.'

Regards,
Prabhu
8 years ago
Hi Team,

In this array: {3,1,2,1,5,6,0,9,13,7,12,11,8,-1,10} how to retrieve the numbers between two given no: startValue = 7 & endValue = 5?

is there a way to iterate using recursive function or what would be the best way to achieve this?

Regards,
Prabhu
8 years ago
Hi Team,

Below is my sample data:

Question 1: What would be the least efficient way to load the above data to memory?
Question 2: Assume if i have 1000 rows of the above table structure, how do we estimate the approx. memory size of the data structure?

8 years ago
Hi Team,

What would be the best/least expensive data structure to load the below example data to the DB?

Regards,
Prabhu
8 years ago
Hi Jeanne,

its for my self assessment. i just want to know how the database memory management works and for this particular scenario what would be the best possible least memory consumption way of DB design.

Regards,
PRabhu
8 years ago
Hi Team,

Below is some specifications for my problem: {3,1,2,1,5,6,0,9,13,7,12,11,8,-1,10}

Case 1: Start Value: 2 End value: 7
output: {2,1,5,6,9,13,7} [Note: '0' can be ignored]
Total count between no 2 & 7 (inclusive of start & end no): 7

Case 2: Start Value: -1 End Value: 2
output: {-1, 10,3,1,2}
Total Count between no -1 & 2 (inclusive of start & end no): 5

Case 1: I am clear with this

Case 2: ?? not clear on how to perform this logic
8 years ago
Hi pawel,

Topic is getting more interesting, I'm learning something new from you guys. Thank you

Case 1 will be no result found
Case 2 when there is multiple match we can have two result set one with the closest match and the second will be the last value match
Case 3 start and end value can be same

8 years ago
Hi Tushal/Campbell,

Yes, it's start and end value.

Case 1: if the start & end value (3,7) are not in array {2, 1,8,5,4} output array should be empty {} and the count will be zero

Case 2: if start & end value (3,7) in the given array {2,1,8,7,4,6,11,10,3,5} then the output array should be {3,5,2,1,8,7} and count will be 6 inclusive of start and end value

Regards,
Prabhu
8 years ago
Hi Team,

Below is my table column values:

Assume that i have 1000 rows similar to the above table structure. Here the String Key column keys can be same (repeated).

What would be the approximate memory size for constructing this database.
8 years ago
Hi Team,

I have a array of integers = [1,3,2,5,4,6, 9,1, 11, 13, 7,12, 0]
My Input is startIndex = 3 & endIndex = 11

total numbers between (3 & 11) inclusive of start and end index = [3, 2, 5,4,6,9,1,11] = 8 (total numbers)

Which data structure can perform this operation in an efficient way & how?

Regards,
Prabhu
8 years ago
Hi Team,

I am generating the web service client using wsdl in RAD 8 and trying to access the service using my ServiceManager class but I am facing the below issue. Any workaround to get this resolved??

8 years ago
Hi Team,

Because of the below exceptions we are getting thread pool error. Let me know why we get the below exception:

Exception 1:
org.xml.sax.SAXParseException: Premature end of file.
at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at org.apache.xerces.util.ErrorHandlerWrapper.fatalError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLVersionDetector.determineDocVersion(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at com.ibm.websphere.product.history.WASHistory.initialize(WASHistory.java(Compiled Code))
at com.ibm.websphere.product.history.WASHistory.<init>(WASHistory.java(Compiled Code))
at com.ibm.websphere.product.VersionInfo.setProduct(VersionInfo.java(Inlined Compiled Code))
at com.ibm.websphere.product.VersionInfo.runReport(VersionInfo.java(Compiled Code))
at com.ibm.websphere.product.VersionInfo.runReport(VersionInfo.java(Inlined Compiled Code))
at com.ibm.ws.runtime.component.ServerCollaborator.getServerVersion(ServerCollaborator.java(Inlined Compiled Code))
at sun.reflect.GeneratedMethodAccessor1317.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java(Compiled Code))
at java.lang.reflect.Method.invoke(Method.java(Compiled Code))
at javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java(Compiled Code))
at javax.management.modelmbean.RequiredModelMBean.getAttribute(RequiredModelMBean.java(Compiled Code))
at javax.management.modelmbean.RequiredModelMBean.getAttributes(RequiredModelMBean.java(Compiled Code))
at mx4j.server.interceptor.InvokerMBeanServerInterceptor.getAttributes(InvokerMBeanServerInterceptor.java(Compiled Code))
at mx4j.server.interceptor.DefaultMBeanServerInterceptor.getAttributes(DefaultMBeanServerInterceptor.java(Inlined Compiled Code))
at mx4j.server.interceptor.SecurityMBeanServerInterceptor.getAttributes(SecurityMBeanServerInterceptor.java(Compiled Code))
at mx4j.server.interceptor.DefaultMBeanServerInterceptor.getAttributes(DefaultMBeanServerInterceptor.java(Compiled Code))
at mx4j.server.interceptor.DefaultMBeanServerInterceptor.getAttributes(DefaultMBeanServerInterceptor.java(Inlined Compiled Code))
at mx4j.server.MX4JMBeanServer.getAttributes(MX4JMBeanServer.java(Compiled Code))
at sun.reflect.GeneratedMethodAccessor1303.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java(Compiled Code))
at java.lang.reflect.Method.invoke(Method.java(Compiled Code))
at com.ibm.ws.management.connector.soap.SOAPConnector.invoke(SOAPConnector.java(Compiled Code))
at com.ibm.ws.management.connector.soap.SOAPConnector.service(SOAPConnector.java(Compiled Code))
at com.ibm.ws.management.connector.soap.SOAPConnection.handleRequest(SOAPConnection.java(Compiled Code))
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java(Compiled Code))

Exception 2:

java.lang.IllegalStateException:

non-serializable app specific session data : null
serializable app specific session data : []

at com.ibm.ws.webcontainer.httpsession.SessionData.getValueGuts(SessionData.java(Compiled Code))
at com.ibm.ws.webcontainer.httpsession.SessionData.getValue(SessionData.java(Inlined Compiled Code))
at com.ibm.ws.webcontainer.httpsession.SessionData.getAttribute(SessionData.java(Inlined Compiled Code))
at com.ibm._jsp._policySearchResult._jspService(_policySearchResult.java:264)
at com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java(Compiled Code))
at javax.servlet.http.HttpServlet.service(HttpServlet.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
at com.ami.phoenix.filters.AuthorizationFilter.doFilter(AuthorizationFilter.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
at com.ami.access.TokenValidationFilter.doFilter(TokenValidationFilter.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java(Compiled Code))
at com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleRequest(GenericServletWrapper.java(Inlined Compiled Code))
at com.ibm.ws.jsp.webcontainerext.JSPExtensionServletWrapper.handleRequest(JSPExtensionServletWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java(Compiled Code))
at com.ibm.ws.tcp.channel.impl.WorkQueueManager.requestComplete(WorkQueueManager.java(Compiled Code))
at com.ibm.ws.tcp.channel.impl.WorkQueueManager.attemptIO(WorkQueueManager.java(Compiled Code))
at com.ibm.ws.tcp.channel.impl.WorkQueueManager.workerRun(WorkQueueManager.java(Compiled Code))
at com.ibm.ws.tcp.channel.impl.WorkQueueManager\$Worker.run(WorkQueueManager.java(Compiled Code))

[b]Exception 3:[/b]

O org.xml.sax.SAXParseException: XML document structures must start and end within the same entity.
at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at org.apache.xerces.util.ErrorHandlerWrapper.fatalError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLScanner.reportFatalError(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.endEntity(Unknown Source)
at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown Source)
at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown Source)
at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl\$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at com.ibm.websphere.product.history.WASHistory.initialize(WASHistory.java(Compiled Code))
at com.ibm.websphere.product.history.WASHistory.<init>(WASHistory.java(Compiled Code))
at com.ibm.websphere.product.VersionInfo.setProduct(VersionInfo.java(Inlined Compiled Code))
at com.ibm.websphere.product.VersionInfo.runReport(VersionInfo.java(Compiled Code))
at com.ibm.websphere.product.VersionInfo.runReport(VersionInfo.java(Inlined Compiled Code))
at com.ibm.ws.runtime.component.ServerCollaborator.getServerVersion(ServerCollaborator.java(Inlined Compiled Code))
at sun.reflect.GeneratedMethodAccessor1317.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java(Compiled Code))
at java.lang.reflect.Method.invoke(Method.java(Compiled Code))
at javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java(Compiled Code))
at javax.management.modelmbean.RequiredModelMBean.getAttribute(RequiredModelMBean.java(Compiled Code))
at javax.management.modelmbean.RequiredModelMBean.getAttributes(RequiredModelMBean.java(Compiled Code))
at mx4j.server.interceptor.InvokerMBeanServerInterceptor.getAttributes(InvokerMBeanServerInterceptor.java(Compiled Code))
at mx4j.server.interceptor.DefaultMBeanServerInterceptor.getAttributes(DefaultMBeanServerInterceptor.java(Inlined Compiled Code))
at mx4j.server.interceptor.SecurityMBeanServerInterceptor.getAttributes(SecurityMBeanServerInterceptor.java(Compiled Code))
at mx4j.server.interceptor.DefaultMBeanServerInterceptor.getAttributes(DefaultMBeanServerInterceptor.java(Compiled Code))
at mx4j.server.interceptor.DefaultMBeanServerInterceptor.getAttributes(DefaultMBeanServerInterceptor.java(Inlined Compiled Code))
at mx4j.server.MX4JMBeanServer.getAttributes(MX4JMBeanServer.java(Compiled Code))