| /* |
| * 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.karaf.shell.osgi; |
| |
| import java.io.IOException; |
| |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Constants; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.service.startlevel.StartLevel; |
| import org.osgi.service.command.CommandSession; |
| |
| public class Util |
| { |
| public static String getBundleName(Bundle bundle) |
| { |
| if (bundle != null) |
| { |
| String name = (String) bundle.getHeaders().get(Constants.BUNDLE_NAME); |
| return (name == null) |
| ? "Bundle " + Long.toString(bundle.getBundleId()) |
| : name + " (" + Long.toString(bundle.getBundleId()) + ")"; |
| } |
| return "[STALE BUNDLE]"; |
| } |
| |
| private static StringBuffer m_sb = new StringBuffer(); |
| |
| public static String getUnderlineString(String s) |
| { |
| synchronized (m_sb) |
| { |
| m_sb.delete(0, m_sb.length()); |
| for (int i = 0; i < s.length(); i++) |
| { |
| m_sb.append('-'); |
| } |
| return m_sb.toString(); |
| } |
| } |
| |
| public static String getValueString(Object obj) |
| { |
| synchronized (m_sb) |
| { |
| if (obj instanceof String) |
| { |
| return (String) obj; |
| } |
| else if (obj instanceof String[]) |
| { |
| String[] array = (String[]) obj; |
| m_sb.delete(0, m_sb.length()); |
| for (int i = 0; i < array.length; i++) |
| { |
| if (i != 0) |
| { |
| m_sb.append(", "); |
| } |
| m_sb.append(array[i].toString()); |
| } |
| return m_sb.toString(); |
| } |
| else if (obj instanceof Boolean) |
| { |
| return ((Boolean) obj).toString(); |
| } |
| else if (obj instanceof Long) |
| { |
| return ((Long) obj).toString(); |
| } |
| else if (obj instanceof Integer) |
| { |
| return ((Integer) obj).toString(); |
| } |
| else if (obj instanceof Short) |
| { |
| return ((Short) obj).toString(); |
| } |
| else if (obj instanceof Double) |
| { |
| return ((Double) obj).toString(); |
| } |
| else if (obj instanceof Float) |
| { |
| return ((Float) obj).toString(); |
| } |
| else if (obj == null) |
| { |
| return "null"; |
| } |
| else |
| { |
| return obj.toString(); |
| } |
| } |
| } |
| |
| /** |
| * Check if a bundle is a system bundle (start level < 50) |
| * |
| * @param bundleContext |
| * @param bundle |
| * @return true if the bundle has start level minor than 50 |
| */ |
| public static boolean isASystemBundle(BundleContext bundleContext, Bundle bundle) { |
| ServiceReference ref = bundleContext.getServiceReference(StartLevel.class.getName()); |
| if (ref != null) { |
| StartLevel sl = (StartLevel) bundleContext.getService(ref); |
| if (sl != null) { |
| int level = sl.getBundleStartLevel(bundle); |
| int sbsl = 49; |
| final String sbslProp = bundleContext.getProperty( "karaf.systemBundlesStartLevel" ); |
| if (sbslProp != null) { |
| try { |
| sbsl = Integer.valueOf( sbslProp ); |
| } |
| catch( Exception ignore ) { |
| // ignore |
| } |
| } |
| return level <= sbsl; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Ask the user to confirm the access to a system bundle |
| * |
| * @param bundleId |
| * @param session |
| * @return true if the user confirm |
| * @throws IOException |
| */ |
| public static boolean accessToSystemBundleIsAllowed(long bundleId, CommandSession session) throws IOException { |
| for (;;) { |
| StringBuffer sb = new StringBuffer(); |
| System.err.print("You are about to access system bundle " + bundleId + ". Do you want to continue (yes/no): "); |
| System.err.flush(); |
| for (;;) { |
| int c = session.getKeyboard().read(); |
| if (c < 0) { |
| return false; |
| } |
| System.err.print((char) c); |
| if (c == '\r' || c == '\n') { |
| break; |
| } |
| sb.append((char) c); |
| } |
| String str = sb.toString(); |
| if ("yes".equals(str)) { |
| return true; |
| } |
| if ("no".equals(str)) { |
| return false; |
| } |
| } |
| } |
| |
| } |