Hi
I have implemented TServlet for the java sample given the Thrift
website).
But I am getting the below exception when I call from client:
java.lang.InstantiationException: com.cts.course.thrift.CourseServlet
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.jav
a:1104)
at
org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:8
06)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
e.java:129)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
e.java:175)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:2
86)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:84
4)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(
Http11Protocol.java:583)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Unknown Source)
Source Code:
package com.cts.course.thrift;
import java.util.List;
import org.apache.thrift.TException;
import org.apache.thrift.TProcessor;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TProtocolFactory;
import org.apache.thrift.server.TServlet;
import com.cts.course.thrift.gen.Course;
import com.cts.course.thrift.gen.CourseNotFound;
import com.cts.course.thrift.gen.CourseService;
import com.cts.course.thrift.gen.UnacceptableCourse;
import com.ociweb.jnb.db.Database;
public class CourseServlet extends TServlet {
/**
*
*/
private static final long serialVersionUID =
-6700299292172345870L;
public CourseServlet(TProcessor processor,
TProtocolFactory inProtocolFactory,
TProtocolFactory outProtocolFactory) {
super(new CourseService.Processor(new CourseHandler()),
new TBinaryProtocol.Factory(), new
TBinaryProtocol.Factory());
}
public CourseServlet(TProcessor processor, TProtocolFactory
protocolFactory) {
super(new CourseService.Processor(new CourseHandler()),
new TBinaryProtocol.Factory());
}
public static class CourseHandler implements CourseService.Iface {
public Database db = new Database();
@Override
public List<String> getCourseInventory() throws TException {
return db.getCourseList();
}
@Override
public Course getCourse(String courseNumber) throws
CourseNotFound,
TException {
final com.ociweb.jnb.db.Course dbCourse = db
.getCourse(courseNumber);
if (dbCourse != null) {
return ConversionHelper.fromDbCourse(dbCourse);
}
return null;
}
@Override
public void addCourse(Course course) throws
UnacceptableCourse,
TException {
com.ociweb.jnb.db.Course dbCourse = ConversionHelper
.toDbCourse(course);
db.addCourse(dbCourse);
}
@Override
public void deleteCourse(String courseNumber) throws
CourseNotFound,
TException {
if (db.getCourse(courseNumber) != null) {
db.deleteCourse(courseNumber);
}
}
}
}
Thanks and Regards
Prabakaran.N
Architect - Technology, GTO - SOA CoE
Cognizant Technology Solutions, BTP, Bangalore
Mobile:+91-9739386923; Vnet: 58157; Direct: +91-80-30748157
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