adding issue type using plugin

[manoharv]

I am trying to add issue type using plugin i am very much new to jira plugin development could not get much support from online
This is my java class

import com.atlassian.jira.config.IssueTypeManager;
import com.atlassian.jira.issue.issuetype.IssueType;
import com.atlassian.plugin.spring.scanner.annotation.export.ExportAsService;
import com.atlassian.plugin.spring.scanner.annotation.imports.ComponentImport;
import com.atlassian.sal.api.ApplicationProperties;
import com.testcase.plugin.api.MyPluginComponent;

import javax.inject.Inject;
import javax.inject.Named;

@ExportAsService ({MyPluginComponent.class})
@Named ("myPluginComponent")
public class MyPluginComponentImpl implements MyPluginComponent
{
IssueTypeManager issueTypeManager;
@ComponentImport
private final ApplicationProperties applicationProperties;
// Create issue type:
IssueType myIssueType = this.issueTypeManager.createIssueType("Test Case", "Test case managment issue type", (long)1);

@Inject
public MyPluginComponentImpl(final ApplicationProperties applicationProperties)
{
this.applicationProperties = applicationProperties;
}

public String getName()
{
if(null != applicationProperties)
{
return "myComponent:" + applicationProperties.getDisplayName();
}

return "myComponent";
}
}

and an entry in plugin.xml

<component-import key="applicationProperties" interface="com.atlassian.sal.api.ApplicationProperties" />

do we need to configure the java class "MyPluginComponentImpl " entry in plugin.xml ?

Please help me to address this issue

[RambanamP]

before asnswering your question, would like to understand,

why you want create issue type using api?  why can't you create manually?

when you want to create new issue type using api?

[manoharv]

I am planning to develop test case managment plugin as part of this i want to create issue type+screens+ work flows 

i dont want to do customizations in jira prefred to develop plugin