cvs commit: jakarta-commons/dbcp/doc abandon.jsp

[di...@apache.org]

dirkv       2003/10/26 10:19:39

  Added:       dbcp/doc abandon.jsp
  Log:
  jsp page used to test the abandoned connection feature of BaseicDataSource
  
  Revision  Changes    Path
  1.1                  jakarta-commons/dbcp/doc/abandon.jsp
  
  Index: abandon.jsp
  ===================================================================
  <?xml version="1.0"?>
  <jsp:root xmlns="http://java.sun.com/JSP/Page" version="1.2">
  <jsp:directive.page contentType="text/html"/>
  <jsp:directive.page import="java.io.*"/>
  <jsp:directive.page import="java.sql.*"/>
  <jsp:directive.page import="javax.sql.*"/>
  <jsp:directive.page import="javax.naming.*"/>
  
  <!--
    This jsp is used to test the abandoned connection feature of BaseicDataSource.
    Add the following configuration to server.xml and load the jsp page.
    The connections aren't closed and are logged to stdout/stderr. 
  
      <Resource name="jdbc/abandoned" auth="Container" type="javax.sql.DataSource"/>
      <ResourceParams name="jdbc/abandoned">
        <parameter><name>username</name><value>sa</value></parameter>
        <parameter><name>password</name><value></value></parameter>
        <parameter><name>driverClassName</name><value>org.hsqldb.jdbcDriver</value></parameter>
        <parameter><name>url</name><value>jdbc:hsqldb:database</value></parameter>
  
        <parameter><name>removeAbandoned</name><value>true</value></parameter>
        <parameter><name>removeAbandonedTimeout</name><value>0</value></parameter>
        <parameter><name>logAbandoned</name><value>true</value></parameter>
  
        <parameter><name>maxActive</name><value>1</value></parameter>
      </ResourceParams>
  -->
  
  <jsp:declaration>
  <![CDATA[
      public DataSource getDataSource(JspWriter out) throws Exception {
          Context ctx = null;
          
          try {
              ctx = new InitialContext();
          } catch (NamingException e) {
              out.println("<br/>Couldn't build an initial context : " + e);
              return null;
          }
  
          try {
              Object value = ctx.lookup("java:/comp/env/jdbc/abandoned");
              out.println("<br/>DataSource lookup");
              out.println("<br/>jdbc value : " + value);
              out.println("<br/>jdbc class : " + value.getClass().getName());
              out.println("<hr/>");
  
              if (value instanceof DataSource) {
                  return (DataSource) value;
              }
              else {
                  return null;
              }
  
          } catch (NamingException e) {
              out.println("<br/>JNDI lookup failed : " + e);
              return null;
          }
      }
  
      private void getConnection1(DataSource ds, JspWriter out) throws Exception {
          System.err.println("BEGIN getConnection1()");
          out.println("<br/>BEGIN getConnection1()");
  
          Connection conn = ds.getConnection();
          System.err.println("conn: " + conn);
          out.println("<br/>conn: " + conn);
  
          System.err.println("END getConnection1()");
          out.println("<br/>END getConnection1()");
      }
  
      private void getConnection2(DataSource ds, JspWriter out) throws Exception {
          System.err.println("BEGIN getConnection2()");
          out.println("<br/>BEGIN getConnection2()");
  
          Connection conn = ds.getConnection();
          System.err.println("conn: " + conn);
          out.println("<br/>conn: " + conn);
  
          System.err.println("END getConnection2()");
          out.println("<br/>END getConnection2()");
      }
  
      private void getConnection3(DataSource ds, JspWriter out) throws Exception {
          System.err.println("BEGIN getConnection3()");
          out.println("<br/>BEGIN getConnection3()");
  
          Connection conn = ds.getConnection();
          System.err.println("conn: " + conn);
          out.println("<br/>conn: " + conn);
  
          System.err.println("END getConnection3()");
          out.println("<br/>END getConnection3()");
      }
  ]]>
  </jsp:declaration>
  
  <html>
  <head>
    <title>DBCP Abandoned Connection Test</title>
  </head>
  <body>
  <h1>DBCP Abandoned Connection Test</h1>
  <hr/>
  <jsp:scriptlet>
      DataSource ds = getDataSource(out);
      if (ds != null) {
          getConnection1(ds, out);
          getConnection2(ds, out);
          getConnection3(ds, out);
      }
  </jsp:scriptlet>
  <hr/>
  <br/>
  OK
  </body>
  </html>
  </jsp:root>
  
  
  

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