org.apache.xbean.command.Lookup Maven / Gradle / Ivy
/**
* 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));
}
}
}