package com.oreilly.jent.jndi;
/**
* In general, you may use the code in this book in your programs and
* documentation. You do not need to contact us for permission unless
* you're reproducing a significant portion of the code. For example,
* writing a program that uses several chunks of code from this book does
* not require permission. Selling or distributing a CD-ROM of examples
* from O'Reilly books does require permission. Answering a question by
* citing this book and quoting example code does not require permission.
* Incorporating a significant amount of example code from this book into
* your product's documentation does require permission.
*
* We appreciate, but do not require, attribution. An attribution usually
* includes the title, author, publisher, and ISBN. For example:
*
* "Java Enterprise in a Nutshell, Third Edition,
* by Jim Farley and William Crawford
* with Prakash Malani, John G. Norman, and Justin Gehtland.
* Copyright 2006 O'Reilly Media, Inc., 0-596-10142-2."
*
* If you feel your use of code examples falls outside fair use or the
* permission given above, feel free to contact us at
* permissions@oreilly.com.
*/
/**
* initctx: Command to initialize the JNDI context.
*/
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Properties;
import java.util.Vector;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
public class initctx implements Command {
public void execute(Context c, Vector v) {
String jndiPropsFilename = null;
// Check for a properties filename
if (!v.isEmpty())
jndiPropsFilename = (String)v.firstElement();
System.out.println("file = " + jndiPropsFilename);
try {
// If no properties file is specified, let JNDI get its properties from
// the default jndi.properties file on the CLASSPATH. Otherwise, use the
// specified properties file.
if (jndiPropsFilename != null) {
Properties props = new Properties();
File jndiProps = new File(jndiPropsFilename);
props.load(new FileInputStream(jndiProps));
NamingShell.setInitialContext(new InitialContext(props));
}
else {
NamingShell.setInitialContext(new InitialContext());
}
NamingShell.setInitialName("/");
NamingShell.setCurrentContext(NamingShell.getInitialContext());
NamingShell.setCurrentName(NamingShell.getInitialName());
System.out.print("Created initial context using ");
if (jndiPropsFilename != null) {
System.out.println(jndiPropsFilename);
}
else {
System.out.println("jndi.properties.");
}
}
catch (NamingException ne) {
System.out.println("Couldn't create the initial context");
}
catch (FileNotFoundException fnfe) {
System.out.print("Couldn't find properties file: ");
System.out.println(jndiPropsFilename);
}
catch (IOException ioe) {
System.out.print("Problem loading the properties file: ");
System.out.println(jndiPropsFilename);
}
catch (Exception e) {
System.out.println("There was a problem starting the shell");
}
}
public void help() { System.out.println("Usage: initctx [filename]"); }
}
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