/**

  * Licensed to the Apache Software Foundation (ASF) under one or more

  * contributor license agreements.  See the NOTICE file distributed with

  * this work for additional information regarding copyright ownership.

  * The ASF licenses this file to You under the Apache License, Version 2.0

  * (the "License"); you may not use this file except in compliance with

  * the License.  You may obtain a copy of the License at

  *

  *      http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 package org.apache.xbean.command;

 import javax.naming.Context;

 import javax.naming.InitialContext;

 import javax.naming.NameClassPair;

 import javax.naming.NameNotFoundException;

 import javax.naming.NamingEnumeration;

 import java.io.IOException;

 import java.io.InputStream;

 import java.io.PrintStream;

 public class Lookup implements Command {

     private final javax.naming.Context ctx;

     public Lookup() throws Exception {

         this(new InitialContext());

     }

     public Lookup(Context ctx) {

         this.ctx = ctx;

     }

     public static void register() {

         try {

             Lookup cmd = new Lookup();

             CommandRegistry.register("lookup", cmd);

         } catch (Exception e) {

         }

     }

     private static String PWD = "";

     // execute jndi lookups

     public int main(String[] args, InputStream in, PrintStream out) {

         try {

             String name = "";

             if (args == null || args.length == 0) {

                 name = PWD;

             } else {

                 name = args[0];

             }

             Object obj = null;

             try {

                 obj = ctx.lookup(name);

             } catch (NameNotFoundException e) {

                 out.print("lookup: ");

                 out.print(name);

                 out.println(": No such object or subcontext");

                 return -1;

             } catch (Throwable e) {

                 out.print("lookup: error: ");

                 e.printStackTrace(new PrintStream(out));

                 return -1;

             }

             if (obj instanceof Context) {

                 list(name, in, out);

                 return 0;

             }

             // TODO:1: Output the different data types differently

             out.println("" + obj);

             return 0;

         } catch (Exception e) {

             e.printStackTrace(new PrintStream(out));

             return -2;

         }

     }

     public void list(String name, InputStream in, PrintStream out) throws IOException {

         try {

             NamingEnumeration names = null;

             try {

                 names = ctx.list(name);

             } catch (NameNotFoundException e) {

                 out.print("lookup: ");

                 out.print(name);

                 out.println(": No such object or subcontext");

                 return;

             } catch (Throwable e) {

                 out.print("lookup: error: ");

                 e.printStackTrace(new PrintStream(out));

                 return;

             }

             if (names == null) {

                 return;

             }

             while (names.hasMore()) {

                 NameClassPair entry = (NameClassPair) names.next();

                 out.println(entry.getName());

             }

         } catch (Exception e) {

             e.printStackTrace(new PrintStream(out));

         }

     }

 }