001/** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.xbean.command; 018 019import javax.naming.Context; 020import javax.naming.InitialContext; 021import javax.naming.NameClassPair; 022import javax.naming.NameNotFoundException; 023import javax.naming.NamingEnumeration; 024import java.io.IOException; 025import java.io.InputStream; 026import java.io.PrintStream; 027 028public class Lookup implements Command { 029 030 private final javax.naming.Context ctx; 031 032 public Lookup() throws Exception { 033 this(new InitialContext()); 034 } 035 036 public Lookup(Context ctx) { 037 this.ctx = ctx; 038 } 039 040 public static void register() { 041 try { 042 Lookup cmd = new Lookup(); 043 CommandRegistry.register("lookup", cmd); 044 } catch (Exception e) { 045 } 046 } 047 048 private static String PWD = ""; 049 050 // execute jndi lookups 051 public int main(String[] args, InputStream in, PrintStream out) { 052 try { 053 String name = ""; 054 if (args == null || args.length == 0) { 055 name = PWD; 056 } else { 057 name = args[0]; 058 } 059 Object obj = null; 060 try { 061 obj = ctx.lookup(name); 062 } catch (NameNotFoundException e) { 063 out.print("lookup: "); 064 out.print(name); 065 out.println(": No such object or subcontext"); 066 return -1; 067 } catch (Throwable e) { 068 out.print("lookup: error: "); 069 e.printStackTrace(new PrintStream(out)); 070 return -1; 071 } 072 if (obj instanceof Context) { 073 list(name, in, out); 074 return 0; 075 } 076 // TODO:1: Output the different data types differently 077 out.println("" + obj); 078 return 0; 079 080 } catch (Exception e) { 081 e.printStackTrace(new PrintStream(out)); 082 return -2; 083 } 084 } 085 086 public void list(String name, InputStream in, PrintStream out) throws IOException { 087 try { 088 NamingEnumeration names = null; 089 try { 090 names = ctx.list(name); 091 } catch (NameNotFoundException e) { 092 out.print("lookup: "); 093 out.print(name); 094 out.println(": No such object or subcontext"); 095 return; 096 } catch (Throwable e) { 097 out.print("lookup: error: "); 098 e.printStackTrace(new PrintStream(out)); 099 return; 100 } 101 if (names == null) { 102 return; 103 } 104 while (names.hasMore()) { 105 NameClassPair entry = (NameClassPair) names.next(); 106 out.println(entry.getName()); 107 } 108 } catch (Exception e) { 109 e.printStackTrace(new PrintStream(out)); 110 } 111 } 112}