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/*
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* Example of using memcached from java - in this case using spymemcached client library from http://code.google.com/p/spymemcached/
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*/
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.io.Serializable;
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import java.net.InetSocketAddress;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import net.spy.memcached.MemcachedClient;
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/**
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* Servlet implementation class Memcached
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*/
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public class Memcached extends HttpServlet {
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// data stored in memcached must be serializable
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class DataBean implements Serializable {
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public DataBean(int i, String n) {id = i; name = n;}
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public int id;
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public String name;
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}
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private static final long serialVersionUID = 1L;
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public Memcached() {
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super();
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}
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protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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MemcachedClient c=new MemcachedClient(new InetSocketAddress("localhost", 11211));
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PrintWriter out = response.getWriter();
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String key = "memcached:myKey";
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DataBean data = (DataBean) c.get(key);
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if (data == null) {
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data = new DataBean(10,"Test");
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c.set(key, 30, data);
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out.write("created new");
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} else {
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out.write("from memcached: id=" + data.id + " name=" + data.name);
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}
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}
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}
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