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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.container.standalone;
import com.google.inject.Binder;
import com.google.inject.Guice;
import com.google.inject.Module;
import com.google.inject.util.Modules;
import com.yahoo.jdisc.application.ContainerActivator;
import com.yahoo.jdisc.application.ContainerBuilder;
import com.yahoo.jdisc.application.DeactivatedContainer;
import com.yahoo.jdisc.application.OsgiFramework;
import com.yahoo.jdisc.http.ConnectorConfig;
import com.yahoo.vespa.model.VespaModel;
import com.yahoo.vespa.model.container.Container;
import com.yahoo.vespa.model.container.http.ConnectorFactory;
import com.yahoo.vespa.model.container.http.Http;
import com.yahoo.vespa.model.container.http.JettyHttpServer;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.channels.FileChannel;
import java.nio.channels.ServerSocketChannel;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import static java.util.stream.Collectors.toMap;
/**
* @author Einar M R Rosenvinge
*/
public class StandaloneContainerActivator implements BundleActivator {
@Override
public void start(BundleContext bundleContext) throws Exception {
Container container = getContainer();
List<ConnectorConfig> connectorConfigs = getConnectorConfigs(container);
Stream<Path> keyStorePaths = getKeyStorePaths(connectorConfigs);
Map<Path, FileChannel> fileChannels = openFiles(keyStorePaths);
registerKeyStoreFileChannels(bundleContext, fileChannels);
for (ConnectorConfig config: connectorConfigs) {
ServerSocketChannel socketChannel = bindChannel(config);
registerChannels(bundleContext, config.listenPort(), socketChannel);
}
}
private void registerKeyStoreFileChannels(BundleContext bundleContext, Map<Path, FileChannel> fileChannels) {
Hashtable<String, Object> properties = new Hashtable<>();
properties.put("role", "com.yahoo.container.standalone.StandaloneContainerActivator.KeyStoreFileChannels");
//Since Standalone container and jdisc http service don't have a suitable common module for placing a wrapper class for fileChannels,
//we register it with the type map. In the future, we should wrap this.
bundleContext.registerService(Map.class,
Collections.unmodifiableMap(fileChannels),
properties);
}
private Map<Path, FileChannel> openFiles(Stream<Path> keyStorePaths) {
return keyStorePaths.collect(toMap(
Function.<Path>identity(),
StandaloneContainerActivator::getFileChannel));
}
private static FileChannel getFileChannel(Path path) {
try {
FileInputStream inputStream = new FileInputStream(path.toFile());
//don't close the inputStream, as that will close the underlying channel.
return inputStream.getChannel();
} catch (IOException e) {
throw new RuntimeException("Failed opening path " + path, e);
}
}
private Stream<Path> getKeyStorePaths(List<ConnectorConfig> connectorConfigs) {
return connectorConfigs.stream().
map(ConnectorConfig::ssl).
flatMap(StandaloneContainerActivator::getKeyStorePaths);
}
private static Stream<Path> getKeyStorePaths(ConnectorConfig.Ssl ssl) {
Stream<String> paths = Stream.of(
ssl.keyStorePath(),
ssl.pemKeyStore().certificatePath(),
ssl.pemKeyStore().keyPath());
return paths.
filter(path -> !path.isEmpty()).
map(Paths::get);
}
void registerChannels(BundleContext bundleContext, int listenPort, ServerSocketChannel boundChannel) {
Hashtable<String, Integer> properties = new Hashtable<>();
properties.put("port", listenPort);
bundleContext.registerService(ServerSocketChannel.class, boundChannel, properties);
}
ServerSocketChannel bindChannel(ConnectorConfig channelInfo) throws IOException {
ServerSocketChannel serverChannel = ServerSocketChannel.open();
InetSocketAddress bindAddress = new InetSocketAddress(channelInfo.listenPort());
serverChannel.socket().bind(bindAddress, channelInfo.acceptQueueSize());
return serverChannel;
}
@Override
public void stop(BundleContext bundleContext) throws Exception { }
Container getContainer(Module... modules) {
Module activatorModule = new ActivatorModule();
List<Module> allModules = new ArrayList<>();
allModules.addAll(Arrays.asList(modules));
allModules.add(activatorModule);
StandaloneContainerApplication app = new StandaloneContainerApplication(Guice.createInjector(Modules.combine(allModules)));
return app.container();
}
List<ConnectorConfig> getConnectorConfigs(Container container) {
Http http = container.getHttp();
return (http == null) ?
getConnectorConfigs(container.getDefaultHttpServer()) :
getConnectorConfigs(http.getHttpServer());
}
private static List<ConnectorConfig> getConnectorConfigs(JettyHttpServer jettyHttpServer) {
if (jettyHttpServer == null)
return Collections.emptyList();
return jettyHttpServer.getConnectorFactories().stream().
map(StandaloneContainerActivator::getConnectorConfig).
collect(Collectors.toList());
}
private static ConnectorConfig getConnectorConfig(ConnectorFactory connectorFactory) {
return VespaModel.getConfig(ConnectorConfig.class, connectorFactory);
}
private static class ActivatorModule implements Module {
@Override
public void configure(Binder binder) {
binder.bind(OsgiFramework.class).toInstance(new DummyOsgiFramework());
binder.bind(ContainerActivator.class).toInstance(new DummyActivatorForStandaloneContainerApp());
}
}
private static class DummyActivatorForStandaloneContainerApp implements ContainerActivator {
@Override
public ContainerBuilder newContainerBuilder() {
return new ContainerBuilder(new ArrayList<Module>());
}
@Override
public DeactivatedContainer activateContainer(ContainerBuilder builder) {
return new DeactivatedContainer() {
@Override
public Object appContext() {
return new Object();
}
@Override
public void notifyTermination(Runnable task) {
}
};
}
}
public static class DummyOsgiFramework implements OsgiFramework {
@Override
public List<Bundle> installBundle(String bundleLocation) {
throw new UnsupportedOperationException();
}
@Override
public void startBundles(List<Bundle> bundles, boolean privileged) {
throw new UnsupportedOperationException();
}
@Override
public void refreshPackages() {
throw new UnsupportedOperationException();
}
@Override
public BundleContext bundleContext() {
return null;
}
@Override
public List<Bundle> bundles() {
return Collections.emptyList();
}
@Override
public void start() {
}
@Override
public void stop() {
}
}
}
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