RESTful WebService using RestEasy

StudentResource.java

package com.mjtoolbox.ws;

import java.util.ArrayList;
import java.util.List;

import javax.ws.rs.GET;
import javax.ws.rs.HeaderParam;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;

@Path("/json")
public class StudentResource {

	List<Student> students = new ArrayList<Student>();
	//Custom utility class extends from ParamConverter
	StringListConverter converter = new StringListConverter();

	public StudentResource() {
		// Populate test data. Later each WS method will retrieve data from DB.
		students.add(new Student(12344, "Mike", 17));
		students.add(new Student(12345, "Jane", 19));
		students.add(new Student(12346, "Bob", 19));
		students.add(new Student(12347, "Susan", 22));
		students.add(new Student(12348, "Daniel", 25));
		students.add(new Student(12349, "John", 26));
		students.add(new Student(12350, "Debbie", 28));
	}

	@GET
	@Path("students")
	@Produces("application/json")
	public Response getStudentList() {
		StudentWrapper wrapper = new StudentWrapper();

		wrapper.setList(students);

		return Response.status(200).entity(wrapper).build();
	}

	@GET
	@Path("overAge/{age}")
	@Produces("application/json")
	public Response getStudentOverAgeList(@PathParam("age") String anAge) {
		StudentWrapper wrapper = new StudentWrapper();

		List<Student> newList = new ArrayList<Student>();
		for (Student student : students) {
			if (student.getAge() > Integer.parseInt(anAge)) {
				newList.add(student);
			}
		}
		wrapper.setList(newList);
		return Response.status(200).entity(wrapper).build();
	}

	/**
	 * Pass concatenated names as a single string
	 * 
	 * @param namesString
	 * @return
	 */
	@GET
	@Path("studentsByName")
	@Produces("application/json")
	public Response getStudentsByNames(@QueryParam("names") String namesString) {
		StudentWrapper wrapper = new StudentWrapper();

		List<String> nameList = converter.fromString(namesString);
		List<Student> newList = new ArrayList<Student>();

		for (Student student : students) {
			if (nameList.contains(student.getName())) {
				newList.add(student);
			}
		}
		wrapper.setList(newList);
		return Response.status(200).entity(wrapper).build();
	}

	/**
	 * Pass concatenated names as a single string
	 * 
	 * @param namesString
	 * @return
	 */
	@PUT
	@Path("studentsByNameJson")
	@Produces("application/json")
	public Response getStudentsByNamesJson(String namesJson) {
		StudentWrapper wrapper = new StudentWrapper();

		List<String> nameList = converter.fromJson(namesJson);
		List<Student> newList = new ArrayList<Student>();

		for (Student student : students) {
			if (nameList.contains(student.getName())) {
				newList.add(student);
			}
		}
		wrapper.setList(newList);
		return Response.status(200).entity(wrapper).build();
	}

}