/*
* 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 java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.util.Arrays;
import java.util.Collection;
import jline.console.ConsoleReader;
import org.apache.felix.service.command.CommandSession;
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.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class Util
{
private static final Logger LOGGER = LoggerFactory.getLogger(Util.class);
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]";
}
public static String getUnderlineString(String s)
{
StringBuilder sb = new StringBuilder(s.length());
for (int i = 0; i < s.length(); i++) {
sb.append('-');
}
return sb.toString();
}
public static String getValueString(Object obj)
{
if (obj == null) {
return "null";
} else if (obj instanceof boolean[]) {
return Arrays.toString((boolean[]) obj);
} else if (obj instanceof byte[]) {
return Arrays.toString((byte[]) obj);
} else if (obj instanceof char[]) {
return Arrays.toString((char[]) obj);
} else if (obj instanceof double[]) {
return Arrays.toString((double[]) obj);
} else if (obj instanceof float[]) {
return Arrays.toString((float[]) obj);
} else if (obj instanceof int[]) {
return Arrays.toString((int[]) obj);
} else if (obj instanceof long[]) {
return Arrays.toString((long[]) obj);
} else if (obj instanceof short[]) {
return Arrays.toString((short[]) obj);
} else if (obj instanceof Collection<?>) {
Object[] array = ((Collection<?>) obj).toArray();
return getValueString(array);
} else if (obj.getClass().isArray()) {
Object[] array = (Object[]) obj;
StringBuilder sb = new StringBuilder();
sb.append("[");
for (int i = 0; i < array.length; i++) {
if (i != 0) {
sb.append(", ");
}
sb.append(getValueString(array[i]));
}
sb.append("]");
return sb.toString();
} 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 (;;) {
ConsoleReader reader = (ConsoleReader) session.get(".jline.reader");
String msg = "You are about to access system bundle " + bundleId + ". Do you wish to continue (yes/no): ";
String str = reader.readLine(msg);
if ("yes".equalsIgnoreCase(str)) {
return true;
}
if ("no".equalsIgnoreCase(str)) {
return false;
}
}
}
}