Im trying to insert a keyspace into cassandra using hector and the SchemaManipulation example given from the hector wiki.
package net.zanity.live;
import java.util.Arrays;
import java.util.List;
import me.prettyprint.cassandra.model.BasicColumnDefinition;
import me.prettyprint.cassandra.model.BasicColumnFamilyDefinition;
import me.prettyprint.cassandra.serializers.StringSerializer;
import me.prettyprint.cassandra.service.ThriftCfDef;
import me.prettyprint.hector.api.Cluster;
import me.prettyprint.hector.api.ddl.*;
import me.prettyprint.hector.api.exceptions.HectorException;
import me.prettyprint.hector.api.factory.HFactory;
/**
*
* @author zznate
*
*/
public class SchemaManipulation {
private static final String DYN_KEYSPACE = "YOUWantToSeeThis";
private static final String DYN_CF = "DynamicCf";
private static final String CF_SUPER = "SuperCf";
private static StringSerializer stringSerializer = StringSerializer.get();
public static void main(String[] args) throws Exception {
Cluster cluster = HFactory.getOrCreateCluster("TestCluster", "localhost:9160");
try {
if ( cluster.describeKeyspace(DYN_KEYSPACE) != null ) {
cluster.dropKeyspace(DYN_KEYSPACE);
}
BasicColumnDefinition columnDefinition = new BasicColumnDefinition();
columnDefinition.setName(stringSerializer.toByteBuffer("birthdate"));
columnDefinition.setIndexName("birthdate_idx");
columnDefinition.setIndexType(ColumnIndexType.KEYS);
columnDefinition.setValidationClass(ComparatorType.LONGTYPE.getClassName());
BasicColumnFamilyDefinition columnFamilyDefinition = new BasicColumnFamilyDefinition();
columnFamilyDefinition.setKeyspaceName(DYN_KEYSPACE);
columnFamilyDefinition.setName(DYN_CF);
columnFamilyDefinition.addColumnDefinition(columnDefinition);
BasicColumnFamilyDefinition superCfDefinition = new BasicColumnFamilyDefinition();
superCfDefinition.setKeyspaceName(DYN_KEYSPACE);
superCfDefinition.setName(CF_SUPER);
superCfDefinition.setColumnType(ColumnType.SUPER);
ColumnFamilyDefinition cfDefStandard = new ThriftCfDef(columnFamilyDefinition);
ColumnFamilyDefinition cfDefSuper = new ThriftCfDef(superCfDefinition);
KeyspaceDefinition keyspaceDefinition =
HFactory.createKeyspaceDefinition(DYN_KEYSPACE, "org.apache.cassandra.locator.SimpleStrategy",
1, Arrays.asList(cfDefStandard, cfDefSuper));
cluster.addKeyspace(keyspaceDefinition);
// insert some data
List<KeyspaceDefinition> keyspaces = cluster.describeKeyspaces();
for (KeyspaceDefinition kd : keyspaces) {
if ( kd.getName().equals(DYN_KEYSPACE) ) {
System.out.println("Name: " +kd.getName());
System.out.println("RF: " +kd.getReplicationFactor());
System.out.println("strategy class: " +kd.getStrategyClass());
List<ColumnFamilyDefinition> cfDefs = kd.getCfDefs();
for (ColumnFamilyDefinition def : cfDefs) {
System.out.println(" CF Type: " +def.getColumnType());
System.out.println(" CF Name: " +def.getName());
System.out.println(" CF Metadata: " +def.getColumnMetadata());
}
}
}
} catch (HectorException he) {
he.printStackTrace();
}
cluster.getConnectionManager().shutdown();
}
}
The jsp code:
<%@page language="java" import="net.zanity.live.*" contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>GlassFish JSP Page</title>
</head>
<body>
<% out.println("CAKrE"); Test test = new Test(); out.println("sting displayed here: " + test.Testt()); %>
After this text loads the cassandra schema test will run and prolly crash the webapp
<% SchemaManipulation cI = new SchemaManipulation(); SchemaManipulation.main(new String [0]); %>
</body>
</html>
Im running this code in Eclipse 3.7.1 Indigo and the code when executed as a java application works and inserts into cassandra, but when i run it on the server it does not.
Cassandra is running on its default port as a local host and glasfish is also running on a local host on port 8080.
I think the issue is im not placing the hector jars in the correct place, the hector jars are already added to the buildpath but im not sure if that has added them to the server as well.
Any help would be appreciated as I’m failing to find useful documentation for cassandra.
EDIT: i have added the jar’s to the server that was not the problem, issue is still unresolved.
Stack Trace of errors:
WARNING: StandardWrapperValve[jsp]: PWC1406: Servlet.service() for servlet jsp threw exception
java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
at me.prettyprint.cassandra.service.AbstractCluster.<init>(AbstractCluster.java:44)
at me.prettyprint.cassandra.service.ThriftCluster.<init>(ThriftCluster.java:21)
at me.prettyprint.hector.api.factory.HFactory.createCluster(HFactory.java:192)
at me.prettyprint.hector.api.factory.HFactory.getOrCreateCluster(HFactory.java:139)
at me.prettyprint.hector.api.factory.HFactory.getOrCreateCluster(HFactory.java:128)
at net.zanity.live.SchemaManipulation.main(SchemaManipulation.java:36)
at org.apache.jsp.index_jsp._jspService(index_jsp.java:61)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:403)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:492)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:378)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1534)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:326)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:227)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:170)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:822)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:719)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1013)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:722)
I think you just forgot to add also the slf4j jar.
That should solve the problem.
In fact the stack trace says it cannot find the class org.slf4j.LoggerFactory which is included in the slf4j jar.
This jar is needed for hector, and indeed hector rises the exception.