Develop Reference

Drools Function unable to resolve method using strict-mode

I have a Drools file that I'm using for business logic on a Tomcat6 server running Java 1.7.0_131 inside a Docker container. When I run the code bellow:
package org.fosstrak.capturingapp
import org.fosstrak.capturingapp.util.Util;
import org.fosstrak.ale.xsd.ale.epcglobal.ECReport;
import org.fosstrak.ale.xsd.ale.epcglobal.ECReports;
import org.fosstrak.ale.xsd.ale.epcglobal.ECReportGroupListMember;
import org.fosstrak.ale.xsd.epcglobal.EPC;
import org.fosstrak.capturingapp.util.SimpleEPCISDocument;
import org.fosstrak.epcis.model.ActionType;
import java.util.List;
import java.util.LinkedList;
import function org.fosstrak.capturingapp.util.Util.extractEPC;
import function org.fosstrak.capturingapp.util.Util.extractReportMembers;
// the global collector for all the EPCIS documents for further processing.
global java.util.List epcisResults
function List warehouseReportHandler(List reports, String reportName){
// List of ECReports
List epcs = new LinkedList();
for(Object rs : reports){
if(rs instanceof ECReports){
ECReports rsc = (ECReports) rs;
for(ECReport report : rsc.getReports().getReport()){
if(report.getReportName() == reportName){
ecps.addAll(extractEPC(Util.selectTag, report));
}
}
}
}
return epcs;
}
rule "ADDITIONS Rule Tags from reader 'Reader_Warehouse_Shelve1' from the specName 'ECSpec'"
dialect "java"
when
$reports : ECReports( reports != null)
$epcs : LinkedList( size > 0 ) from collect (
EPC() from warehouseReportHandler($reports, "additions")
)
then
SimpleEPCISDocument simpleDocument = new SimpleEPCISDocument();
simpleDocument.addObjectEvent(
$epcs,
ActionType.OBSERVE,
"urn:epcglobal:cbv:bizstep:storing",
"urn:epcglobal:cbv:disp:sellable_not_accessible",
"urn:epc:id:sgln:76300544.00000.1",
"urn:epc:id:sgln:76300544.00000.0"
);
System.out.println("\n=====================================================");
System.out.println("Additions tags seen:");
for (Object o : $epcs) System.out.println(((EPC)o).getValue());
System.out.println("=====================================================\n");
epcisResults.add(simpleDocument.getDocument());
end
I get the following error message:
21146 [Thread-2] DEBUG org.fosstrak.capturingapp.ECReportsHandler - Unable to build expression for 'from' : Failed to compile: 1 compilation error(s):
capture | - (1,45) unable to resolve method using strict-mode: java.lang.Object.warehouseReportHandler(org.fosstrak.ale.xsd.ale.epcglobal.ECReports, java.lang.String) 'warehouseReportHandler($reports, "additions")' : [Rule name='ADDITIONS Rule Tags from reader 'Reader_Warehouse_Shelve1' from the specName 'ECSpec'']
capture | Error importing : 'org.fosstrak.capturingapp.WarehouseReportHandler.warehouseReportHandler'[ warehouseReportHandler : Function Compilation error
capture | warehouseReportHandler (line:28): ecps cannot be resolved
capture | ][ warehouseReportHandler : Function Compilation error
capture | warehouseReportHandler (line:28): ecps cannot be resolved
capture | ]Rule Compilation error : [Rule name='ADDITIONS Rule Tags from reader 'Reader_Warehouse_Shelve1' from the specName 'ECSpec'']
capture | org/fosstrak/capturingapp/Rule_ADDITIONS_Rule_Tags_from_reader__Reader_Warehouse_Shelve1__from_the_specName__ECSpec__0.java (2:489) : The import org.fosstrak.capturingapp.WarehouseReportHandler cannot be resolved
I'm new to Drools. I am not sure if it's a syntax problem.
Update: I've removed the generics I had previously and tried to follow the examples given in the project, without success. (https://github.com/Fosstrak/fosstrak/tree/master/capturingapp/trunk/src/main/resources/drools)
Thank you everyone for your time

This line
function List warehouseReportHandler(List reports, String reportName){
defines the function with the parameter as a list. However the invocation
$reports : ECReports( reports != null)
$epcs : LinkedList( size > 0 ) from collect (
EPC() from warehouseReportHandler($reports, "additions")
)
shows a parameter of type ECReports is being sent in to the method. Can you fix this and try?

Trying to retrieve a userCertificate from Windows Active directory using java CertStore but no success

I am trying to retrive a userCertificate associated with a domain name from Windows Active Directory but having difficulties by using Java API
for example when I use 'ldapsearch' command tool, I am able to retrieve the certificate as you can see below
ldapsearch -h 192.xx.2.xx -D "CN=Administrator,CN=Users,DC=mmo,DC=co,DC=ca" -w Password -b "CN=rsa0,CN=Users,DC=mmo,DC=co,DC=ca" "userCertificate"
# extended LDIF
#
# LDAPv3
# base <CN=rsa0,CN=Users,DC=mmo,DC=co,DC=ca> with scope subtree
# filter: (objectclass=*)
# requesting: userCertificate
#
# rsa0, Users, mmo.co.ca
dn: CN=rsa0,CN=Users,DC=mmo,DC=co,DC=ca
userCertificate:: MIIDbTCCAlWgAwIBAgIEFbvHazANBgkqhkiG9w0BAQsFADBnMQswCQYDVQQG
EwJ1azEQMA4GA1UECBMHVW5rbm93bjEWMBQGA1UEBxMNcmlja21hbnN3b3J0aDERMA8GA1UEChMId
m9jYWxpbmsxDDAKBgNVBAsTA2lwczENMAsGA1UEAxMEcnNhMDAeFw0xOTExMjExNDUwNDNaFw0yOT
ExMTgxNDUwNDNaMGcxCzAJBgNVBAYTAnVrMRAwDgYDVQQIEwdVbmtub3duMRYwFAYDVQQHEw1yaWN
rbWFuc3dvcnRoMREwDwYDVQQKEwh2b2NhbGluazEMMAoGA1UECxMDaXBzMQ0wCwYDVQQDEwRyc2Ew
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0R0yCr0uU80oFG3Zg0vTbR4NSR2St+w4f
DOmoHQ27z1Q2JwhiNh1XkwC8MtVeGzRJw0pe+jXc2fMVbIqONHImOZuX6p1UMWof7fxMAIEfWq98u
OqVbvbXVLeCE9+BJGsOaiJ70Q76e8tDNTH3vg1orXAvb0O7R0Vz9I0iXjJKzUtmFEBju/m3eoa+WI
6OaBr64hJw7oz1CzPIKj0OcapFypFjr4+QKpRsHA4Nn21XrYSsT00Dk9SVK3NTjHm661crvTR6jSx
j1GrCpVdQGCQ25a2RrHIi0cmclNJmy81PngW0cpdO3p9ZsZ2vPUy5/CNbVwqPEPSlIjJtVa0Xf9O1
QIDAQABoyEwHzAdBgNVHQ4EFgQU1U7VOM/vAHL0pqZgi6TS1f0SAt8wDQYJKoZIhvcNAQELBQADgg
EBAC7fK81BHDbF8PSQO2YznZtnzCMs46TwCezyqIFzQljwYA5wxKIytV7GtV4aEUrfIFIeQIMW812
pMol9xIotULSl1I/2WI18QTIJfRAnkCZZPJIa9MU6nEGCouF1LwW9bzQzHOeI07NgCIyBryojXaxc
L/epJtVxYialdI9mBWB8KDytINrylOcP9sXYaUtkOOiU7h0sBF9XBfzXgtTkF8pB7ObX9YJnyvzTn
y2zVfeZD8Q7BtDL7AvIDcUjoHtYx5B0oD86aCNTSShmtB/ZEyqt8Kynqf+QUYQIWA3wVFjgZjCCwc
NxiXuf6H8KGW8hP+ETKnc7u9XP9GCHINf9K0I=
# search result
search: 2
result: 0 Success
# numResponses: 2
# numEntries: 1
however when I try to use the Java program, I am unable to retrive it, below is the sample java program
package CertStore;
import javax.naming.AuthenticationException;
import javax.naming.AuthenticationNotSupportedException;
import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
import javax.security.auth.x500.X500Principal;
import java.security.cert.*;
import java.util.*;
import java.io.*;
class CertStoreTest {
CertStoreTest() {
try {
LDAPCertStoreParameters lcsp =
new LDAPCertStoreParameters("192.xx.2.xx", 389);
String referenceID = "CN=rsa0,CN=Users,DC=bmo,DC=co,DC=ca";
X509CertSelector xcs = new X509CertSelector();
xcs.setSubject(referenceID);
CertStore cs = CertStore.getInstance("LDAP", lcsp);
Collection certificates = cs.getCertificates((CertSelector)xcs);
System.out.println("size: "+ certificates.size());
Iterator certificate = certificates.iterator();
while(certificate.hasNext()) {
System.out.println(certificate.next());
}
} catch(Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
System.out.println("main() called.");
CertStoreTest test = new CertStoreTest();
}
}
When I run this program, I get the size as 0 where I am expecting as 1.
main() called.
size: 0
I also have openldap running on a linux system, and in the above java program if I point to that server and with appropriate domain name information, java is able to pull the certificate associated with that domain name.
Not sure what I am missing when I try to retrive certificate from Windows Active Directory.
Can anyone shed some light on this as I have been stuck for few days now.

How can I remove the output layer of pre-trained model with TensorFlow java api?

I have the pre-trained model like Inception-v3. I want to remove the output layer and use it in image cognition. Here is the example given by tensorflow:
Just like the python framework Keras, it has a method like model.layers.pop(). I tried do it with tensorflow java api. First I tried to use dl4j, but when I imported the keras model, I got an error like this:
2017-06-15 21:15:43 INFO KerasInceptionV3Net:52 - Importing Inception model from data/inception-model.json
2017-06-15 21:15:43 INFO KerasInceptionV3Net:53 - Importing Weights model from data/inception_v3_complete
Exception in thread "main" java.lang.RuntimeException: Unknown exception.
at org.bytedeco.javacpp.hdf5$H5File.allocate(Native Method)
at org.bytedeco.javacpp.hdf5$H5File.<init>(hdf5.java:12713)
at org.deeplearning4j.nn.modelimport.keras.Hdf5Archive.<init>(Hdf5Archive.java:61)
at org.deeplearning4j.nn.modelimport.keras.KerasModel$ModelBuilder.weightsHdf5Filename(KerasModel.java:603)
at org.deeplearning4j.nn.modelimport.keras.KerasModelImport.importKerasModelAndWeights(KerasModelImport.java:176)
at edu.usc.irds.dl.dl4j.examples.KerasInceptionV3Net.<init>(KerasInceptionV3Net.java:55)
at edu.usc.irds.dl.dl4j.examples.KerasInceptionV3Net.main(KerasInceptionV3Net.java:108)
HDF5-DIAG: Error detected in HDF5 (1.10.0-patch1) thread 0:
#000: C:\autotest\HDF5110ReleaseRWDITAR\src\H5F.c line 579 in H5Fopen(): unable to open file
major: File accessibilty
minor: Unable to open file
#001: C:\autotest\HDF5110ReleaseRWDITAR\src\H5Fint.c line 1100 in H5F_open(): unable to open file: time = Thu Jun 15 21:15:44 2017,name = 'data/inception_v3_complete', tent_flags = 0
major: File accessibilty
minor: Unable to open file
#002: C:\autotest\HDF5110ReleaseRWDITAR\src\H5FD.c line 812 in H5FD_open(): open failed
major: Virtual File Layer
minor: Unable to initialize object
#003: C:\autotest\HDF5110ReleaseRWDITAR\src\H5FDsec2.c line 348 in H5FD_sec2_open(): unable to open file: name = 'data/inception_v3_complete', errno = 2, error message = 'No such file or directory', flags = 0, o_flags = 0
major: File accessibilty
minor: Unable to open file
So I went back to tensorflow. I'm going to modify the model in keras and convert the model to tensor. Here is my conversion script:
input_fld = './'
output_node_names_of_input_network = ["pred0"]
write_graph_def_ascii_flag = True
output_node_names_of_final_network = 'output_node'
output_graph_name = 'test2.pb'
from keras.models import load_model
import tensorflow as tf
import os
import os.path as osp
from keras.applications.inception_v3 import InceptionV3
from keras.applications.vgg16 import VGG16
from keras.models import Sequential
from keras.layers.core import Flatten, Dense, Dropout
from keras.layers.convolutional import Convolution2D, MaxPooling2D, ZeroPadding2D
from keras.optimizers import SGD
output_fld = input_fld + 'tensorflow_model/'
if not os.path.isdir(output_fld):
os.mkdir(output_fld)
net_model = InceptionV3(weights='imagenet', include_top=True)
num_output = len(output_node_names_of_input_network)
pred = [None]*num_output
pred_node_names = [None]*num_output
for i in range(num_output):
pred_node_names[i] = output_node_names_of_final_network+str(i)
pred[i] = tf.identity(net_model.output[i], name=pred_node_names[i])
print('output nodes names are: ', pred_node_names)
from keras import backend as K
sess = K.get_session()
if write_graph_def_ascii_flag:
f = 'only_the_graph_def.pb.ascii'
tf.train.write_graph(sess.graph.as_graph_def(), output_fld, f, as_text=True)
print('saved the graph definition in ascii format at: ', osp.join(output_fld, f))
from tensorflow.python.framework import graph_util
from tensorflow.python.framework import graph_io
constant_graph = graph_util.convert_variables_to_constants(sess, sess.graph.as_graph_def(), pred_node_names)
graph_io.write_graph(constant_graph, output_fld, output_graph_name, as_t ext=False)
print('saved the constant graph (ready for inference) at: ', osp.join(output_fld, output_graph_name))
I got the model as .pb file, but when I put it into the tensor example, The LabelImage example, I got this error:
Exception in thread "main" java.lang.IllegalArgumentException: You must feed a value for placeholder tensor 'batch_normalization_1/keras_learning_phase' with dtype bool
[[Node: batch_normalization_1/keras_learning_phase = Placeholder[dtype=DT_BOOL, shape=<unknown>, _device="/job:localhost/replica:0/task:0/cpu:0"]()]]
at org.tensorflow.Session.run(Native Method)
at org.tensorflow.Session.access$100(Session.java:48)
at org.tensorflow.Session$Runner.runHelper(Session.java:285)
at org.tensorflow.Session$Runner.run(Session.java:235)
at com.dlut.cmh.sheng.LabelImage.executeInceptionGraph(LabelImage.java:98)
at com.dlut.cmh.sheng.LabelImage.main(LabelImage.java:51)
I don't know how to solve this. Can anyone help me? Or you have another way to do this?

The error message you get from the TensorFlow Java API:
Exception in thread "main" java.lang.IllegalArgumentException: You must feed a value for placeholder tensor 'batch_normalization_1/keras_learning_phase' with dtype bool
[[Node: batch_normalization_1/keras_learning_phase = Placeholder[dtype=DT_BOOL, shape=<unknown>, _device="/job:localhost/replica:0/task:0/cpu:0"]()]]
suggests that the model is constructed in a way that requires you to feed a boolean value for the tensor named batch_normalization_1/keras_learning_phase.
So, you'd have to include that in your call to run by changing:
try (Session s = new Session(g);
Tensor result = s.runner().feed("input",image).fetch("output").run().get(0)) {
to something like:
try (Session s = new Session(g);
Tensor learning_phase = Tensor.create(false);
Tensor result = s.runner().feed("input", image).feed("batch_normalization_1/keras_learning_phase", learning_phase).fetch("output").run().get(0)) {
The names of nodes you feed and fetch depend on the model, so it's possible that the names of the 'input' and 'output' nodes are different as well.
You might also want to consider using the TensorFlow SavedModel format (see also https://github.com/tensorflow/serving/issues/310#issuecomment-297015251)
Hope that helps

HBase Java Client does not work (MasterNotRunningException exception )

I'm trying to write a remote HBase client using Java. Here is the code for reference :
package ttumdt.app.connector;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.MasterNotRunningException;
import org.apache.hadoop.hbase.ZooKeeperConnectionException;
import org.apache.hadoop.hbase.client.HBaseAdmin;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.filter.BinaryComparator;
import org.apache.hadoop.hbase.filter.CompareFilter;
import org.apache.hadoop.hbase.filter.Filter;
import org.apache.hadoop.hbase.filter.FilterList;
import org.apache.hadoop.hbase.filter.RowFilter;
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;
import org.apache.hadoop.hbase.util.Bytes;
import java.io.IOException;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
public class HBaseClusterConnector {
private final String MASTER_IP = "10.138.168.185";
private final String ZOOKEEPER_PORT = "2181";
final String TRAFFIC_INFO_TABLE_NAME = "TrafficLog";
final String TRAFFIC_INFO_COLUMN_FAMILY = "TimeStampIMSI";
final String KEY_TRAFFIC_INFO_TABLE_BTS_ID = "BTS_ID";
final String KEY_TRAFFIC_INFO_TABLE_DATE = "DATE";
final String COLUMN_IMSI = "IMSI";
final String COLUMN_TIMESTAMP = "TIME_STAMP";
private final byte[] columnFamily = Bytes.toBytes(TRAFFIC_INFO_COLUMN_FAMILY);
private final byte[] qualifier= Bytes.toBytes(COLUMN_IMSI);
private Configuration conf = null;
public HBaseClusterConnector () throws MasterNotRunningException, ZooKeeperConnectionException {
conf = HBaseConfiguration.create();
conf.set("hbase.zookeeper.quorum",MASTER_IP);
conf.set("hbase.zookeeper.property.clientPort",ZOOKEEPER_PORT);
HBaseAdmin.checkHBaseAvailable(conf);
}
/**
* This filter will return list of IMSIs for a given btsId and ime interval
* #param btsId : btsId for which the query has to run
* #param startTime : start time for which the query has to run
* #param endTime : end time for which the query has to run
* #return returns IMSIs as set of Strings
* #throws IOException
*/
public Set<String> getInfoPerBTSID(String btsId, String date,
String startTime, String endTime)
throws IOException {
Set<String> imsis = new HashSet<String>();
//ToDo : better exception handling
HTable table = new HTable(conf, TRAFFIC_INFO_TABLE_NAME);
Scan scan = new Scan();
scan.addColumn(columnFamily,qualifier);
scan.setFilter(prepFilter(btsId, date, startTime, endTime));
// filter to build where timestamp
Result result = null;
ResultScanner resultScanner = table.getScanner(scan);
while ((result = resultScanner.next())!= null) {
byte[] obtainedColumn = result.getValue(columnFamily,qualifier);
imsis.add(Bytes.toString(obtainedColumn));
}
resultScanner.close();
return imsis;
}
//ToDo : Figure out how valid is this filter code?? How comparison happens
// with eqaul or grater than equal etc
private Filter prepFilter (String btsId, String date,
String startTime, String endTime)
{
byte[] tableKey = Bytes.toBytes(KEY_TRAFFIC_INFO_TABLE_BTS_ID);
byte[] timeStamp = Bytes.toBytes(COLUMN_TIMESTAMP);
// filter to build -> where BTS_ID = <<btsId>> and Date = <<date>>
RowFilter keyFilter = new RowFilter(CompareFilter.CompareOp.EQUAL,
new BinaryComparator(Bytes.toBytes(btsId+date)));
// filter to build -> where timeStamp >= startTime
SingleColumnValueFilter singleColumnValueFilterStartTime =
new SingleColumnValueFilter(columnFamily, timeStamp,
CompareFilter.CompareOp.GREATER_OR_EQUAL,Bytes.toBytes(startTime));
// filter to build -> where timeStamp <= endTime
SingleColumnValueFilter singleColumnValueFilterEndTime =
new SingleColumnValueFilter(columnFamily, timeStamp,
CompareFilter.CompareOp.LESS_OR_EQUAL,Bytes.toBytes(endTime));
FilterList filterList = new FilterList(FilterList.Operator.MUST_PASS_ALL, Arrays
.asList((Filter) keyFilter,
singleColumnValueFilterStartTime, singleColumnValueFilterEndTime));
return filterList;
}
public static void main(String[] args) throws IOException {
HBaseClusterConnector flt = new HBaseClusterConnector();
Set<String> imsis= flt.getInfoPerBTSID("AMCD000784", "26082013","104092","104095");
System.out.println(imsis.toString());
}
}
I'm currently using Cloudera quick start VM to test this.
The problem is; if i run this very code on VM it works absolutely fine. But it fails with below error if it is run from outside. And I'm suspecting it has something to do with the VM setting rather than anything else. Please note that I've already checked if I can connect to the node manager / job tracker of the VM from host machine and it works absolutely fine. When I run the code from my host OS instead of running it on VM; I get the below error :
2013-10-15 18:16:04.185 java[652:1903] Unable to load realm info from SCDynamicStore
Exception in thread "main" org.apache.hadoop.hbase.MasterNotRunningException: Retried 1 times
at org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:138)
at org.apache.hadoop.hbase.client.HBaseAdmin.checkHBaseAvailable(HBaseAdmin.java:1774)
at ttumdt.app.connector.HBaseClusterConnector.<init>(HBaseClusterConnector.java:47)
at ttumdt.app.connector.HBaseClusterConnector.main(HBaseClusterConnector.java:117)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Process finished with exit code 1
Please note that; the master node is actually running. The zookeper log shows that it has established connection with the host OS :
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
6:16:03.274 PM INFO org.apache.zookeeper.server.ZooKeeperServer
Client attempting to establish new session at /10.138.169.81:50567
6:16:03.314 PM INFO org.apache.zookeeper.server.ZooKeeperServer
Established session 0x141bc2487440004 with negotiated timeout 60000 for client /10.138.169.81:50567
6:16:03.964 PM INFO org.apache.zookeeper.server.PrepRequestProcessor
Processed session termination for sessionid: 0x141bc2487440004
6:16:03.996 PM INFO org.apache.zookeeper.server.NIOServerCnxn
Closed socket connection for client /10.138.169.81:50567 which had sessionid 0x141bc2487440004
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
But I see no trace of any activity in Master or RegionServer log.
Please note that my host OS is Mac OSX 10.7.5
As per the resource available; this should work fine; though some suggest the simple HBase java client never works. I'm confused; and eagerly waiting for pointers !!! Please reply

start your hiveserver2 on different port and then try connecting
command to connect hiveserver2 on different port (make sure hive is in path ) :
hive --service hiveserver2 --hiveconf hive.server2.thrift.port=13000

The HBase Java client certainly does work!
The most likely explanation is that your client can't see the machine that the master is running on for some reason.
One possible explanation is that, although you are connecting to Zookeeper using an IP address, the HBase client is attempting to connect to the master using its hostname.
So, if you ensure that you have entries in your hosts file (on the client) that match the hostname of the machine running the master, this may resolve the problem.
Check that you can access the master Web UI at <hostname>:60010 from your client machine.

How to send attribute from Database to dJ to make Report

/*
* DynamicJasper: A library for creating reports dynamically by specifying
* columns, groups, styles, etc. at runtime. It also saves a lot of development
* time in many cases! (http://sourceforge.net/projects/dynamicjasper)
*
* Copyright (C) 2008 FDV Solutions (http://www.fdvsolutions.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
*
* License as published by the Free Software Foundation; either
*
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
*
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
*
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
*
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*
*/
package ar.com.fdvs.dj.test;
import java.sql.*;
import java.awt.Color;
import java.util.Date;
import java.util.Locale;
import net.sf.jasperreports.view.*;
import ar.com.fdvs.dj.domain.AutoText;
import ar.com.fdvs.dj.domain.DynamicReport;
import ar.com.fdvs.dj.domain.Style;
import ar.com.fdvs.dj.domain.builders.FastReportBuilder;
import ar.com.fdvs.dj.domain.builders.StyleBuilder;
import ar.com.fdvs.dj.domain.constants.Font;
import ar.com.fdvs.dj.core.DJConstants;
// import ar.com.fdvs.dj.test.*;
public class Main extends BaseDjReportTest {
public DynamicReport buildReport() throws Exception {
// Connection C = new Connection();
// C.Con();
CConnection C= new CConnection();
C.Connection();
Statement stmt;
ResultSet rs = null;
String SQL = "SELECT * FROM student";
stmt = C.Con().createStatement();
rs = stmt.executeQuery(SQL);
String res= "";
FastReportBuilder drb = new FastReportBuilder();
drb.setQuery(SQL, DJConstants.QUERY_LANGUAGE_SQL);
while (rs.next()){
res= rs.getString("Name");
**drb.addColumn("Name","Name", String.class.getName(),30);**
// drb.addc
}
//.addColumn("Branch", "branch", String.class.getName(),30)
// .addColumn("Item", "item", String.class.getName(),50)
// .addColumn("Item Code", "id", Long.class.getName(),30,true)
// .addColumn("Quantity", "quantity", Long.class.getName(),60,true)
// .addColumn("Amount", "amount", Float.class.getName(),70,true)
drb.addGroups(2);
DynamicReport sa =drb.build();
drb.setSubtitle("This report was generated at " + new Date())
.setTemplateFile("templates/TemplateReportTest.jrxml")
.setUseFullPageWidth(true);
Style atStyle = new StyleBuilder(true).setFont(Font.COMIC_SANS_SMALL).setTextColor(Color.red).build();
Style atStyle2 = new StyleBuilder(true).setFont(new Font(9, Font._FONT_TIMES_NEW_ROMAN, false, true, false)).setTextColor(Color.BLUE).build();
/***
* Adding many autotexts in the same position (header/footer and aligment) makes them to be one on top of the other
*/
//First add in the FOOTER
drb.addAutoText(AutoText.AUTOTEXT_PAGE_X, AutoText.POSITION_HEADER, AutoText.ALIGNMENT_LEFT,200,40, atStyle);
drb.addAutoText("Autotext below Page counter", AutoText.POSITION_FOOTER, AutoText.ALIGNMENT_LEFT);
//Note the styled text: <b>msimone</b>, valid tags are: <b>, <i> and <u>
drb.addAutoText("Created by <b>msimone</b>", AutoText.POSITION_FOOTER, AutoText.ALIGNMENT_RIGHT,200);
drb.addAutoText(AutoText.AUTOTEXT_PAGE_X_SLASH_Y, AutoText.POSITION_FOOTER, AutoText.ALIGNMENT_RIGHT,30,30,atStyle2);
drb.addAutoText(AutoText.AUTOTEXT_CREATED_ON, AutoText.POSITION_FOOTER, AutoText.ALIGNMENT_LEFT,AutoText.PATTERN_DATE_DATE_TIME);
//Now in HEADER
drb.addAutoText(AutoText.AUTOTEXT_PAGE_X_OF_Y, AutoText.POSITION_HEADER, AutoText.ALIGNMENT_LEFT,100,40);
drb.addAutoText("Autotext at top-left", AutoText.POSITION_HEADER, AutoText.ALIGNMENT_LEFT,200);
drb.addAutoText("Autotext at top-left (2)", AutoText.POSITION_HEADER, AutoText.ALIGNMENT_LEFT,200);
drb.addAutoText("Autotext at top-center", AutoText.POSITION_HEADER, AutoText.ALIGNMENT_CENTER,200,atStyle);
// DynamicReport dr = drb.build();
//i18N, you can set a Locale, different tha n the default in the VM
drb.setReportLocale(new Locale("es","AR"));
drb.setReportLocale(new Locale("pt","BR"));
drb.setReportLocale(new Locale("fr","FR"));
return sa;
}
public static void main(String[] args) throws Exception {
**Main test = new Main();
test.testReport();**
JasperViewer.viewReport(test.jp);
JasperDesignViewer.viewReportDesign(test.jr);
//JasperDesignViewer.viewReportDesign(DynamicJasperHelper.generateJasperReport(test.dr, test.getLayoutManager(),new HashMap()));
}
}
Writing this code i m getting following exception and i really cant figure out the reason
Exception in thread "main" net.sf.jasperreports.engine.JRException: Error retrieving field value from bean : varchar at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getBeanProperty(JRAbstractBeanDataSource.java:123)
at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getFieldValue(JRAbstractBeanDataSource.java:96)
at net.sf.jasperreports.engine.data.JRBeanCollectionDataSource.getFieldValue(JRBeanCollectionDataSource.java:100)
at net.sf.jasperreports.engine.fill.JRFillDataset.setOldValues(JRFillDataset.java:818)
at net.sf.jasperreports.engine.fill.JRFillDataset.next(JRFillDataset.java:782)
at net.sf.jasperreports.engine.fill.JRBaseFiller.next(JRBaseFiller.java:1448)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:108)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:923)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:845)
at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:85)
at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:624)
at ar.com.fdvs.dj.test.BaseDjReportTest.testReport(BaseDjReportTest.java:93)
at ar.com.fdvs.dj.test.Main.main(Main.java:121)
Caused by: java.lang.NoSuchMethodException: Unknown property 'varchar' on class 'class ar.com.fdvs.dj.test.domain.Product'
at org.apache.commons.beanutils.PropertyUtilsBean.getSimpleProperty(PropertyUtilsBean.java:1322)
at org.apache.commons.beanutils.PropertyUtilsBean.getNestedProperty(PropertyUtilsBean.java:770)
at org.apache.commons.beanutils.PropertyUtilsBean.getProperty(PropertyUtilsBean.java:846)
at org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:426)
at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getBeanProperty(JRAbstractBeanDataSource.java:111)
... 12 more
Java Result: 1

You may be aware of this already, but it appears that somewhere, the code is trying to access a property called "varchar" on the Product object:
Caused by: java.lang.NoSuchMethodException: Unknown property 'varchar' on class 'class ar.com.fdvs.dj.test.domain.Product' at .....
I don't see where this is happening in your example. It may be that there is a place where name is expected and you are instead passing in type. Or somewhere in your configuration, you've got name and type switched around, so it's looking for a field named "varchar". Does that make sense?
In general, I find that the "Caused by" portion of the error log is the most informative.