| /** |
| * Licensed to jclouds, Inc. (jclouds) under one or more |
| * contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. jclouds 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.jclouds.virtualbox.functions; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static com.google.common.collect.Iterables.filter; |
| import static org.jclouds.compute.options.RunScriptOptions.Builder.runAsRoot; |
| |
| import java.net.NetworkInterface; |
| import java.net.SocketException; |
| import java.util.Collections; |
| import java.util.Enumeration; |
| import java.util.List; |
| import java.util.regex.Pattern; |
| |
| import javax.annotation.Resource; |
| |
| import org.jclouds.compute.callables.RunScriptOnNode.Factory; |
| import org.jclouds.compute.domain.NodeMetadata; |
| import org.jclouds.compute.reference.ComputeServiceConstants; |
| import org.jclouds.logging.Logger; |
| import org.jclouds.scriptbuilder.domain.Statement; |
| import org.jclouds.scriptbuilder.domain.Statements; |
| |
| import com.google.common.base.Function; |
| import com.google.common.base.Predicate; |
| import com.google.common.base.Splitter; |
| import com.google.common.base.Throwables; |
| import com.google.common.collect.Iterables; |
| import com.google.common.collect.Lists; |
| import com.google.inject.Inject; |
| import com.google.inject.name.Named; |
| |
| /** |
| * @author Andrea Turli |
| */ |
| public class RetrieveActiveBridgedInterfaces implements Function<NodeMetadata, List<String>> { |
| |
| @Resource |
| @Named(ComputeServiceConstants.COMPUTE_LOGGER) |
| protected Logger logger = Logger.NULL; |
| |
| private final Factory runScriptOnNodeFactory; |
| |
| @Inject |
| public RetrieveActiveBridgedInterfaces(Factory runScriptOnNodeFactory) { |
| this.runScriptOnNodeFactory = checkNotNull(runScriptOnNodeFactory, "runScriptOnNodeFactory"); |
| } |
| |
| @Override |
| public List<String> apply(NodeMetadata host) { |
| // Bridged Network |
| Statement command = Statements.exec("vboxmanage list bridgedifs"); |
| String bridgedIfBlocks = runScriptOnNodeFactory.create(host, command, runAsRoot(false).wrapInInitScript(false)) |
| .init().call().getOutput(); |
| |
| List<String> bridgedInterfaces = retrieveBridgedInterfaceNames(bridgedIfBlocks); |
| checkNotNull(bridgedInterfaces); |
| |
| // union of bridgedNetwork with inet up and !loopback |
| List<String> activeNetworkInterfaceNames = Lists.newArrayList(); |
| try { |
| Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces(); |
| for (NetworkInterface inet : Collections.list(nets)) { |
| Iterable<String> filteredBridgedInterface = filter(bridgedInterfaces, new IsActiveBridgedInterface(inet)); |
| Iterables.addAll(activeNetworkInterfaceNames, filteredBridgedInterface); |
| } |
| } catch (SocketException e) { |
| logger.error(e, "Problem in listing network interfaces."); |
| propagate(e); |
| } |
| return activeNetworkInterfaceNames; |
| } |
| |
| protected static List<String> retrieveBridgedInterfaceNames(String bridgedIfBlocks) { |
| List<String> bridgedInterfaceNames = Lists.newArrayList(); |
| // separate the different bridge block |
| for (String bridgedIfBlock : Splitter.on(Pattern.compile("(?m)^[ \t]*\r?\n")).split(bridgedIfBlocks)) { |
| |
| Iterable<String> bridgedIfName = filter(Splitter.on("\n").split(bridgedIfBlock), new Predicate<String>() { |
| @Override |
| public boolean apply(String arg0) { |
| return arg0.startsWith("Name:"); |
| } |
| }); |
| for (String bridgedInterfaceName : bridgedIfName) { |
| for (String string : Splitter.on("Name:").split(bridgedInterfaceName)) { |
| if (!string.isEmpty()) |
| bridgedInterfaceNames.add(string.trim()); |
| } |
| } |
| } |
| return bridgedInterfaceNames; |
| } |
| |
| protected <T> T propagate(Exception e) { |
| Throwables.propagate(e); |
| assert false; |
| return null; |
| } |
| |
| private class IsActiveBridgedInterface implements Predicate<String> { |
| |
| private NetworkInterface networkInterface; |
| |
| public IsActiveBridgedInterface(NetworkInterface networkInterface) { |
| this.networkInterface = networkInterface; |
| } |
| |
| @Override |
| public boolean apply(String bridgedInterfaceName) { |
| try { |
| return (bridgedInterfaceName.startsWith(networkInterface.getDisplayName()) && networkInterface.isUp() && !networkInterface |
| .isLoopback()); |
| } catch (SocketException e) { |
| logger.error(e, "Problem in listing network interfaces."); |
| propagate(e); |
| } |
| return false; |
| } |
| } |
| } |