Terracotta

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<li>Unzip Terracotta</li>
 
<li>Unzip Terracotta</li>
 
<li>Create the Mule webapp directory structure:
 
<li>Create the Mule webapp directory structure:
<pre>mkdir -p /usr/local/share/resin/webapps/terracotta/WEB-INF/lib/
+
<pre>mkdir -p /usr/local/share/resin/webapps/terracotta/WEB-INF/classes/example/
mkdir -p /usr/local/share/resin/webapps/terracotta/WEB-INF/classes/example/
+
 
</pre>
 
</pre>
 
</li>
 
</li>

Revision as of 02:26, 18 February 2008

Terracotta and Resin

WARNING: THE FOLLOWING IS INCOMPLETE AND IN PROGRESS!


  1. Download Resin from http://www.caucho.com/download
  2. Unzip Resin into /usr/local/share/resin
  3. Download Terracotta from http://www.terracotta.org
  4. Unzip Terracotta
  5. Create the Mule webapp directory structure:
    mkdir -p /usr/local/share/resin/webapps/terracotta/WEB-INF/classes/example/
    
  6. Create the configuration file /usr/local/share/resin/webapps/mule/WEB-INF/resin-web.xml
    <?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns="http://caucho.com/ns/resin">
      <servlet servlet-name="hello-servlet"
               servlet-class="example.HelloWorldServlet"/>
    
      <servlet-mapping url-pattern="/*" servlet-name="hello-servlet"/>
    </web-app>
    
  7. Create the configuration file /usr/local/share/resin/tc-config.xml
    <?xml version="1.0" encoding="UTF-8"?>
    <tc:tc-config xmlns:tc="http://www.terracotta.org/config">
      <clients>
        <dso>
           <debugging>
            <instrumentation-logging>
              <class>true</class>
              <hierarchy>true</hierarchy>
              <locks>true</locks>
              <transient-root>true</transient-root>
              <roots>true</roots>
              <distributed-methods>true</distributed-methods>
            </instrumentation-logging>
            <runtime-logging>
              <lock-debug>true</lock-debug>  
              <field-change-debug>true</field-change-debug>  
              <wait-notify-debug>true</wait-notify-debug>
              <distributed-method-debug>true</distributed-method-debug>
              <new-object-debug>true</new-object-debug>
            </runtime-logging>
          </debugging>
        </dso>
      </clients>
    
      <application>
        <dso>
          <roots>
            <root>
              <field-name>example.HelloWorldServlet._accessTimes</field-name>
            </root>
          </roots>
          <locks>
            <autolock>
              <method-expression>* example.HelloWorldServlet*.*(..)</method-expression>
              <lock-level>write</lock-level>
            </autolock>
          </locks>
          <instrumented-classes>
            <include><class-expression>example..*</class-expression></include>
          </instrumented-classes>
          <additional-boot-jar-classes>
            <include>java.util.TimeZone</include>
            <include>sun.util.calendar.ZoneInfo</include>
           </additional-boot-jar-classes>
        </dso>
      </application>
    </tc:tc-config>
    
  8. Create the HelloWorld Servlet /usr/local/share/resin/webapps/terracotta/WEB-INF/classes/example/HelloWorldServlet.java
    package example;
    
    import java.io.*;
    import java.text.*;
    import java.util.*;
    import javax.servlet.*;
    import javax.servlet.http.*;
    
    public class HelloWorldServlet extends HttpServlet {
      // this is the variable that Terracotta will distribute
      private ArrayList<Calendar> _accessTimes = new ArrayList<Calendar>();
    
      @Override
      public void doGet(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, IOException
      {
        Calendar now = Calendar.getInstance();
    
        synchronized(_accessTimes) {
          _accessTimes.add((Calendar) now.clone());
          DateFormat format = new SimpleDateFormat("yyyy.MM.dd G 'at' HH:mm:ss z");
    
          resp.setContentType("text/html");
    
          PrintWriter out = resp.getWriter();
    
          out.println("<html>");
          out.println("<body>");
    
          for (Calendar calendar : _accessTimes) {
            out.println("<br/>" + format.format(calendar.getTime()));
          }
    
          out.println("</body>");
          out.println("</html>");
        }
      }
    }
  9. Create two copies of resin.conf, with different ports for the server and http. Add these lines to both versions of resin.conf
    <jvm-arg>-Dcom.sun.management.jmxremote</jvm-arg>
    <jvm-arg>-Xbootclasspath/p:<path-to-terracotta>/lib/dso-boot/<dso-boot-jar></jvm-arg>
    <jvm-arg>-Dtc.install-root=<path-to-terracotta></jvm-arg>
    <jvm-arg>-Dtc.config=localhost:9510</jvm-arg>
    
  10. Invoke two Resin instances, using the two different resin.confs
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