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Revision 2822

Added by Duane Costa over 18 years ago

Eliminate hard-coding of the knb context from the advanced search code. Advanced search servlet determines the metacat context name by reading the metacat.properties file at servlet initialization.

View differences:

LoginServlet.java
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package edu.ucsb.nceas.metacat.advancedsearch;


  		




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import java.io.File;


  		




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import java.io.IOException;


  		




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import javax.servlet.RequestDispatcher;


  		




  
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import javax.servlet.ServletConfig;


  		




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import javax.servlet.ServletContext;


  		




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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.HttpSession;


  		




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import edu.ucsb.nceas.metacat.client.*;


  		




  
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import edu.ucsb.nceas.utilities.Options;


  		




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/** 


  		




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 * @author dcosta


  		




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 */


  		




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public class LoginServlet extends HttpServlet {


  		




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  // Instance Variables -- (Not used because they are not thread-safe.)


  		




  
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  /*


  		




  
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   * Class fields


  		




  
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   */


  		




  
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  private static final String CONFIG_DIR = "WEB-INF";


  		




  
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  private static final String CONFIG_NAME = "metacat.properties";


  		




  
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  // Instance Variables


  		




  
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  private String contextString = "";


  		




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  // Methods


  		




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      MetacatHelper metacatHelper = new MetacatHelper();


  		




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      String serverName = request.getServerName();


  		




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      int serverPort = request.getServerPort();


  		




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      metacatURL = metacatHelper.constructMetacatURL(serverName, serverPort);


  		




  
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      metacatURL = metacatHelper.constructMetacatURL(serverName, serverPort, "knb");


  		




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    }


  		




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    if (metacat == null) {


  		




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    dispatcher.forward(request, response);


  		




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  }


  		




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  /**


  		




  
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   * Initializes the servlet. Reads properties and initializes object fields.


  		




  
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   * 


  		




  
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   * @throws ServletException


  		




  
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   */


  		




  
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  public void init(ServletConfig config) throws ServletException {


  		




  
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	ServletContext context = null;


  		




  
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    String dirPath;


  		




  
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    Options options = null;


  		




  
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    super.init(config);


  		




  
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    context = config.getServletContext();


  		




  
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    dirPath = context.getRealPath(CONFIG_DIR);


  		




  
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    File propertyFile = new File(dirPath, CONFIG_NAME);


  		




  
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    try {


  		




  
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      options = Options.initialize(propertyFile);


  		




  
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    }


  		




  
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    catch (IOException e) {


  		




  
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      System.err.println("Error in loading options: " + e.getMessage());


  		




  
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    }


  		




  
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    this.contextString = options.getOption("context");


  		




  
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  }


  		




  
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}


  		












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