diff options
Diffstat (limited to 'sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org')
10 files changed, 1341 insertions, 0 deletions
diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/launcher/NodeImplementationDaemonBootstrap.java b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/launcher/NodeImplementationDaemonBootstrap.java new file mode 100644 index 0000000000..edf2aefdde --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/launcher/NodeImplementationDaemonBootstrap.java @@ -0,0 +1,84 @@ +/* + * 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.tuscany.sca.implementation.node.launcher; + +import org.apache.tuscany.sca.host.embedded.SCADomain; +import org.apache.tuscany.sca.node.SCANode2; + +/** + * Bootstrap class for the SCA node daemon. + * + * @version $Rev$ $Date$ + */ +public class NodeImplementationDaemonBootstrap { + private SCANode2 node; + + /** + * A node wrappering an instance of a node daemon. + */ + public static class NodeFacade implements SCANode2 { + private ClassLoader threadContextClassLoader; + private ClassLoader runtimeClassLoader; + private SCADomain daemon; + + private NodeFacade() { + runtimeClassLoader = Thread.currentThread().getContextClassLoader(); + } + + public void start() { + threadContextClassLoader = Thread.currentThread().getContextClassLoader(); + boolean started = false; + try { + Thread.currentThread().setContextClassLoader(runtimeClassLoader); + daemon = SCADomain.newInstance("NodeDaemon.composite"); + started = true; + } finally { + if (!started) { + Thread.currentThread().setContextClassLoader(threadContextClassLoader); + } + } + } + + public void stop() { + try { + Thread.currentThread().setContextClassLoader(runtimeClassLoader); + daemon.close(); + } finally { + Thread.currentThread().setContextClassLoader(threadContextClassLoader); + } + } + } + + /** + * Constructs a new daemon bootstrap. + */ + public NodeImplementationDaemonBootstrap() throws Exception { + node = new NodeFacade(); + } + + /** + * Returns the node representing the daemon. + * @return + */ + public SCANode2 getNode() { + return node; + } + +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/launcher/NodeImplementationLauncherBootstrap.java b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/launcher/NodeImplementationLauncherBootstrap.java new file mode 100644 index 0000000000..397dcba433 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/launcher/NodeImplementationLauncherBootstrap.java @@ -0,0 +1,138 @@ +/* + * 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.tuscany.sca.implementation.node.launcher; + +import org.apache.tuscany.sca.node.SCAClient; +import org.apache.tuscany.sca.node.SCANode2; +import org.apache.tuscany.sca.node.SCANode2Factory; +import org.apache.tuscany.sca.node.SCANode2Factory.SCAContribution; +import org.osoa.sca.CallableReference; +import org.osoa.sca.ServiceReference; + +/** + * Bootstrap class for standalone SCA nodes. + * + * @version $Rev$ $Date$ + */ +public class NodeImplementationLauncherBootstrap { + + private SCANode2 node; + + /** + * A node facade. + */ + public static class NodeFacade implements SCANode2, SCAClient { + private ClassLoader threadContextClassLoader; + private ClassLoader runtimeClassLoader; + private SCANode2 delegate; + + private NodeFacade(SCANode2 delegate) { + runtimeClassLoader = Thread.currentThread().getContextClassLoader(); + this.delegate = delegate; + } + + public void start() { + threadContextClassLoader = Thread.currentThread().getContextClassLoader(); + boolean started = false; + try { + Thread.currentThread().setContextClassLoader(runtimeClassLoader); + delegate.start(); + started = true; + } finally { + if (!started) { + Thread.currentThread().setContextClassLoader(threadContextClassLoader); + } + } + } + + public void stop() { + try { + Thread.currentThread().setContextClassLoader(runtimeClassLoader); + delegate.stop(); + } finally { + Thread.currentThread().setContextClassLoader(threadContextClassLoader); + } + } + + public <B, R extends CallableReference<B>> R cast(B target) throws IllegalArgumentException { + return (R)((SCAClient)delegate).cast(target); + } + + public <B> B getService(Class<B> businessInterface, String serviceName) { + return (B)((SCAClient)delegate).getService(businessInterface, serviceName); + } + + public <B> ServiceReference<B> getServiceReference(Class<B> businessInterface, String referenceName) { + return (ServiceReference<B>)((SCAClient)delegate).getServiceReference(businessInterface, referenceName); + } + } + + /** + * Bootstrap a new SCA node. + * + * @param configurationURI + */ + public NodeImplementationLauncherBootstrap(String configurationURI) throws Exception { + SCANode2Factory nodeFactory = SCANode2Factory.newInstance(); + node = new NodeFacade(nodeFactory.createSCANode(configurationURI)); + } + + /** + * Bootstrap a new SCA node. + * + * @param compositeURI + * @param uris + * @param locations + */ + public NodeImplementationLauncherBootstrap(String compositeURI, String[] uris, String[] locations) throws Exception { + SCANode2Factory nodeFactory = SCANode2Factory.newInstance(); + SCAContribution[] contributions = new SCAContribution[uris.length]; + for (int i = 0; i < uris.length; i++) { + contributions[i] = new SCAContribution(uris[i], locations[i]); + } + node = new NodeFacade(nodeFactory.createSCANode(compositeURI, contributions)); + } + + /** + * Bootstrap a new SCA node. + * + * @param compositeURI + * @param uris + * @param locations + */ + public NodeImplementationLauncherBootstrap(String compositeURI, String compositeContent, String[] uris, String[] locations) throws Exception { + SCANode2Factory nodeFactory = SCANode2Factory.newInstance(); + SCAContribution[] contributions = new SCAContribution[uris.length]; + for (int i = 0; i < uris.length; i++) { + contributions[i] = new SCAContribution(uris[i], locations[i]); + } + node = new NodeFacade(nodeFactory.createSCANode(compositeURI, compositeContent, contributions)); + } + + /** + * Returns the SCA node. + * + * @return + */ + public SCANode2 getNode() { + return node; + } + +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/launcher/NodeImplementationLauncherUtil.java b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/launcher/NodeImplementationLauncherUtil.java new file mode 100644 index 0000000000..62a822a85e --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/launcher/NodeImplementationLauncherUtil.java @@ -0,0 +1,51 @@ +/* + * 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.tuscany.sca.implementation.node.launcher; + +/** + * Utility methods for node implementation launchers. + * + * @version $Rev$ $Date$ + */ +public class NodeImplementationLauncherUtil { + + private static final String TUSCANY_DOMAIN = "TUSCANY_DOMAIN"; + private static final String DEFAULT_DOMAIN = "http://localhost:9990"; + + /** + * Determine the URI of a node configuration. The domain URI can be configured + * using a TUSCANY_DOMAIN system property or environment variable. + * + * @param nodeName + * @return + */ + public static String nodeConfigurationURI(String nodeName) { + String domain = System.getProperty(TUSCANY_DOMAIN); + if (domain == null || domain.length() == 0) { + domain = System.getenv(TUSCANY_DOMAIN); + } + if (domain == null || domain.length() ==0) { + domain = DEFAULT_DOMAIN; + } + String nodeConfiguration = domain + "/node-config/" + nodeName; + return nodeConfiguration; + } + +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/launcher/NodeProcessCollectionImpl.java b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/launcher/NodeProcessCollectionImpl.java new file mode 100644 index 0000000000..ee94996ddc --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/launcher/NodeProcessCollectionImpl.java @@ -0,0 +1,341 @@ +/* + * 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.tuscany.sca.implementation.node.launcher; + +import java.io.BufferedReader; +import java.io.IOException; +import java.io.InputStreamReader; +import java.util.ArrayList; +import java.util.List; +import java.util.Properties; +import java.util.logging.Logger; + +import org.apache.tuscany.sca.data.collection.Entry; +import org.apache.tuscany.sca.data.collection.Item; +import org.apache.tuscany.sca.data.collection.ItemCollection; +import org.apache.tuscany.sca.data.collection.LocalItemCollection; +import org.apache.tuscany.sca.data.collection.NotFoundException; +import org.apache.tuscany.sca.node.launcher.NodeLauncher; +import org.osoa.sca.ServiceRuntimeException; +import org.osoa.sca.annotations.Init; +import org.osoa.sca.annotations.Scope; +import org.osoa.sca.annotations.Service; + +/** + * Implementation of a node process collection service. + * + * @version $Rev$ $Date$ + */ +@Scope("COMPOSITE") +@Service(interfaces={ItemCollection.class, LocalItemCollection.class}) +public class NodeProcessCollectionImpl implements ItemCollection, LocalItemCollection { + + private static final Logger logger = Logger.getLogger(NodeProcessCollectionImpl.class.getName()); + + private List<SCANodeVM> nodeVMs = new ArrayList<SCANodeVM>(); + + /** + * Initialize the component. + */ + @Init + public void initialize() { + } + + public Entry<String, Item>[] getAll() { + logger.fine("getAll"); + + // Return all the running VMs + List<Entry<String, Item>> entries = new ArrayList<Entry<String, Item>>(); + for (SCANodeVM vm: nodeVMs) { + entries.add(entry(vm)); + } + return entries.toArray(new Entry[entries.size()]); + } + + public Item get(String key) throws NotFoundException { + logger.fine("get " + key); + + // Return the specified VM + SCANodeVM vm = vm(key); + if (vm == null) { + throw new NotFoundException(); + } + + return item(vm); + } + + public String post(String key, Item item) { + logger.fine("post " + key); + + // If the VM is already running just return it + SCANodeVM vm = vm(key); + if (vm != null) { + if (vm.isAlive()) { + return key; + } else { + // Remove dead VM entry + try { + vm.stop(); + } catch (InterruptedException e) { + throw new ServiceRuntimeException(e); + } + nodeVMs.remove(vm); + } + } + + // Start a new VM and add it to the collection + vm = new SCANodeVM(key); + nodeVMs.add(0, vm); + try { + vm.start(); + } catch (IOException e) { + throw new ServiceRuntimeException(e); + } + + return key; + } + + public void put(String key, Item item) throws NotFoundException { + throw new UnsupportedOperationException(); + } + + public void delete(String key) throws NotFoundException { + logger.fine("delete " + key); + + // Stop a VM and remove it from the collection + SCANodeVM vm = vm(key); + if (vm != null) { + try { + vm.stop(); + } catch (InterruptedException e) { + throw new ServiceRuntimeException(e); + } + nodeVMs.remove(vm); + } else { + //throw new NotFoundException(); + } + } + + public Entry<String, Item>[] query(String queryString) { + logger.fine("query " + queryString); + + if (queryString.startsWith("node=")) { + + // Return the log for the specified VM + String key = queryString.substring(queryString.indexOf('=') + 1); + List<Entry<String, Item>> entries = new ArrayList<Entry<String, Item>>(); + for (SCANodeVM vm: nodeVMs) { + if (vm.getNodeName().equals(key)) { + entries.add(entry(vm)); + } + } + return entries.toArray(new Entry[entries.size()]); + + } else { + throw new UnsupportedOperationException(); + } + } + + /** + * Returns the specified VM. + * + * @param key + * @return + */ + private SCANodeVM vm(String key) { + for (SCANodeVM vm: nodeVMs) { + if (key.equals(vm.getNodeName())) { + return vm; + } + } + return null; + } + + /** + * Returns an entry representing a VM. + * + * @param vm + * @return + */ + private static Entry<String, Item> entry(SCANodeVM vm) { + Entry<String, Item> entry = new Entry<String, Item>(); + entry.setKey(vm.getNodeName()); + entry.setData(item(vm)); + return entry; + } + + /** + * Returns an item representing a VM. + * + * @param vm + * @return + */ + private static Item item(SCANodeVM vm) { + Item item = new Item(); + String key = vm.getNodeName(); + item.setTitle(title(key)); + item.setLink("/node-config/" + vm.getNodeName()); + item.setContents("<span id=\"log\" style=\"white-space: nowrap; font-size: small\">" + vm.getLog().toString() + "</span>"); + return item; + } + + /** + * Represent a child Java VM running an SCA node. + */ + private static class SCANodeVM { + private static final String TUSCANY_PATH = "TUSCANY_PATH"; + + private String nodeName; + private StringBuffer log; + private Process process; + private Thread monitor; + private int status; + + SCANodeVM(String nodeName) { + log = new StringBuffer(); + this.nodeName =nodeName; + } + + /** + * Starts a node in a new VM. + */ + private void start() throws IOException { + + // Determine the node configuration URI + String nodeConfigurationURI = NodeImplementationLauncherUtil.nodeConfigurationURI(nodeName); + + // Build the Java VM command line + Properties props = System.getProperties(); + String java = props.getProperty("java.home") + "/bin/java"; + String cp = props.getProperty("java.class.path"); + String path = System.getenv(TUSCANY_PATH); + if (path == null) { + path = props.getProperty(TUSCANY_PATH); + } + String main = NodeLauncher.class.getName(); + + final List<String> command = new ArrayList<String>(); + command.add(java); + command.add("-cp"); + command.add(cp); + if (path != null) { + command.add("-D" + TUSCANY_PATH + "=" + path); + } + command.add(main); + command.add(nodeConfigurationURI); + + StringBuffer buffer = new StringBuffer(); + for (String c: command) { + buffer.append(' '); + buffer.append(c); + } + logger.info("Starting" + log); + + // Start the VM + ProcessBuilder builder = new ProcessBuilder(command); + builder.redirectErrorStream(true); + process = builder.start(); + + logger.info("Started " + process); + + // Start a thread to monitor the process + final BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream())); + monitor = new Thread(new Runnable() { + public void run() { + try { + for (;;) { + String s = reader.readLine(); + if (s != null) { + logger.info(s); + log.append(s + "<br>"); + } else { + break; + } + } + status = process.waitFor(); + } catch (IOException e) { + } catch (Exception e) { + throw new RuntimeException(e); + } + } + }); + monitor.start(); + } + + /** + * Returns the composite used to start this VM. + * @return + */ + String getNodeName() { + return nodeName; + } + + /** + * Returns the log for this VM. + * + * @return + */ + StringBuffer getLog() { + return log; + } + + /** + * Returns true if the VM is alive + * + * @return + */ + private boolean isAlive() { + return monitor.isAlive(); + } + + /** + * Returns the VM status code. + * @return + */ + int getStatus() { + return status; + } + + /** + * Stops the VM. + * + * @throws InterruptedException + */ + private void stop() throws InterruptedException { + logger.info("Stopping " + process); + + process.destroy(); + monitor.join(); + + logger.info("Stopped " + process); + } + } + + /** + * Returns a node title. + * + * @param key + * @return + */ + private static String title(String key) { + return key; + } + +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/launcher/PingServiceImpl.java b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/launcher/PingServiceImpl.java new file mode 100644 index 0000000000..7abb1335cf --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/launcher/PingServiceImpl.java @@ -0,0 +1,61 @@ +/* + * 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.tuscany.sca.implementation.node.launcher; + +import java.io.IOException; +import java.util.logging.Logger; + +import javax.servlet.Servlet; +import javax.servlet.ServletException; +import javax.servlet.http.HttpServlet; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import javax.xml.parsers.ParserConfigurationException; + +import org.osoa.sca.annotations.Init; +import org.osoa.sca.annotations.Scope; +import org.osoa.sca.annotations.Service; + +/** + * Implementation of a ping service component. + * + * @version $Rev$ $Date$ + */ +@Scope("COMPOSITE") +@Service(interfaces={Servlet.class}) +public class PingServiceImpl extends HttpServlet { + private static final long serialVersionUID = -3477992129462720901L; + + private static final Logger logger = Logger.getLogger(PingServiceImpl.class.getName()); + + /** + * Initialize the component. + */ + @Init + public void initialize() throws ParserConfigurationException { + } + + @Override + protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { + logger.fine("ping"); + response.getWriter().print("<html><body><span id=\"ping\">OK</span></body></html>"); + } + +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/provider/NodeImplementationInvoker.java b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/provider/NodeImplementationInvoker.java new file mode 100644 index 0000000000..5895a8614d --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/provider/NodeImplementationInvoker.java @@ -0,0 +1,44 @@ +/* + * 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.tuscany.sca.implementation.node.provider; + +import org.apache.tuscany.sca.assembly.Composite; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.invocation.Message; + +/** + * Implements an invoker for node component implementations. + * + * @version $Rev$ $Date$ + */ +class NodeImplementationInvoker implements Invoker { + private Composite composite; + + NodeImplementationInvoker(Composite composite) { + this.composite = composite; + } + + public Message invoke(Message msg) { + //FIXME Implement later + msg.setBody(composite); + return msg; + } + +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/provider/NodeImplementationProvider.java b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/provider/NodeImplementationProvider.java new file mode 100644 index 0000000000..6cdb18938e --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/provider/NodeImplementationProvider.java @@ -0,0 +1,62 @@ +/* + * 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.tuscany.sca.implementation.node.provider; + +import org.apache.tuscany.sca.implementation.node.NodeImplementation; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.provider.ImplementationProvider; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; + +/** + * An implementation provider for node component implementations. + * + * @version $Rev$ $Date$ + */ +class NodeImplementationProvider implements ImplementationProvider { + + private NodeImplementation implementation; + + /** + * Constructs a new node implementation provider. + * + * @param component + * @param implementation + */ + NodeImplementationProvider(RuntimeComponent component, NodeImplementation implementation) { + this.implementation = implementation; + } + + public Invoker createInvoker(RuntimeComponentService service, Operation operation) { + NodeImplementationInvoker invoker = new NodeImplementationInvoker(implementation.getComposite()); + return invoker; + } + + public boolean supportsOneWayInvocation() { + return false; + } + + public void start() { + } + + public void stop() { + } + +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/provider/NodeImplementationProviderFactory.java b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/provider/NodeImplementationProviderFactory.java new file mode 100644 index 0000000000..e2a3e4df92 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/provider/NodeImplementationProviderFactory.java @@ -0,0 +1,49 @@ +/* + * 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.tuscany.sca.implementation.node.provider; + +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.implementation.node.NodeImplementation; +import org.apache.tuscany.sca.provider.ImplementationProvider; +import org.apache.tuscany.sca.provider.ImplementationProviderFactory; +import org.apache.tuscany.sca.runtime.RuntimeComponent; + +/** + * Factory for node component implementation providers. + * + * @version $Rev$ $Date$ + */ +public class NodeImplementationProviderFactory implements ImplementationProviderFactory<NodeImplementation> { + + /** + * Constructs a new factory. + * + * @param extensionPoints + */ + public NodeImplementationProviderFactory(ExtensionPointRegistry extensionPoints) { + } + + public ImplementationProvider createImplementationProvider(RuntimeComponent component, NodeImplementation implementation) { + return new NodeImplementationProvider(component, implementation); + } + + public Class<NodeImplementation> getModelType() { + return NodeImplementation.class; + } +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/webapp/NodeWebAppRequestDispatcher.java b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/webapp/NodeWebAppRequestDispatcher.java new file mode 100644 index 0000000000..f6a601a3cd --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/webapp/NodeWebAppRequestDispatcher.java @@ -0,0 +1,119 @@ +/* + * 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.tuscany.sca.implementation.node.webapp; + +import java.io.IOException; +import java.util.StringTokenizer; + +import javax.servlet.RequestDispatcher; +import javax.servlet.Servlet; +import javax.servlet.ServletException; +import javax.servlet.ServletRequest; +import javax.servlet.ServletResponse; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletRequestWrapper; + +/** + * A Servlet request dispatcher that can be used to delegate requests to a + * Serlvet registered with the Webapp Servlet host. + * + * @version $Rev$ $Date$ + */ +class NodeWebAppRequestDispatcher implements RequestDispatcher { + private String servletPath; + private Servlet servlet; + + /** + * Constructs a new request dispatcher. + * + * @param mapping + * @param servlet + */ + public NodeWebAppRequestDispatcher(String mapping, Servlet servlet) { + if (mapping.endsWith("*")) { + mapping = mapping.substring(0, mapping.length()-1); + } + if (mapping.endsWith("/")) { + mapping = mapping.substring(0, mapping.length()-1); + } + this.servletPath = mapping; + this.servlet = servlet; + } + + /** + * Returns a request wrapper which will return the correct Servlet path + * and path info. + * + * @param request + * @return + */ + private HttpServletRequest createRequestWrapper(ServletRequest request) { + HttpServletRequest requestWrapper = new HttpServletRequestWrapper((HttpServletRequest)request) { + + @Override + public String getServletPath() { + return servletPath; + } + + @Override + public String getPathInfo() { + String path = super.getServletPath(); + if (path.length() == 0) { + path = super.getPathInfo(); + } + + // TODO: another context path hack, revisit when context path is sorted out + path = fiddlePath(path, servletPath); + + return path; + } + }; + return requestWrapper; + } + + /** + * Remove any path suffix thats part of the Servlet context path. + * + * @param path + * @param servletPath + */ + private static String fiddlePath(String path, String servletPath) { + StringTokenizer st = new StringTokenizer(path, "/"); + String root = ""; + while (st.hasMoreTokens()){ + String s = st.nextToken(); + if (servletPath.endsWith((root + "/" + s))) { + root += "/" + s; + } else { + break; + } + } + String fiddlePath = path.substring(root.length()); + return fiddlePath; + } + + public void forward(ServletRequest request, ServletResponse response) throws ServletException, IOException { + servlet.service(createRequestWrapper(request), response); + } + + public void include(ServletRequest request, ServletResponse response) throws ServletException, IOException { + servlet.service(createRequestWrapper(request), response); + } +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/webapp/NodeWebAppServletHost.java b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/webapp/NodeWebAppServletHost.java new file mode 100644 index 0000000000..7902866aa0 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-node-runtime/src/main/java/org/apache/tuscany/sca/implementation/node/webapp/NodeWebAppServletHost.java @@ -0,0 +1,392 @@ +/* + * 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.tuscany.sca.implementation.node.webapp; + +import java.io.IOException; +import java.lang.reflect.Method; +import java.net.InetAddress; +import java.net.MalformedURLException; +import java.net.URI; +import java.net.URL; +import java.net.UnknownHostException; +import java.util.Enumeration; +import java.util.HashMap; +import java.util.Map; +import java.util.logging.Logger; + +import javax.servlet.Filter; +import javax.servlet.FilterConfig; +import javax.servlet.RequestDispatcher; +import javax.servlet.Servlet; +import javax.servlet.ServletConfig; +import javax.servlet.ServletContext; +import javax.servlet.ServletException; +import javax.servlet.ServletRequest; +import javax.servlet.ServletResponse; +import javax.servlet.http.HttpServletRequest; + +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.host.http.ServletHost; +import org.apache.tuscany.sca.host.http.ServletHostExtensionPoint; +import org.apache.tuscany.sca.host.http.ServletMappingException; +import org.apache.tuscany.sca.implementation.node.launcher.NodeImplementationLauncherUtil; +import org.apache.tuscany.sca.node.SCAClient; +import org.apache.tuscany.sca.node.SCANode2; +import org.apache.tuscany.sca.node.SCANode2Factory; + +/** + * ServletHost implementation for use in a Webapp Node environment. + * + * @version $Rev$ $Date$ + */ +public class NodeWebAppServletHost implements ServletHost, Filter { + private static final Logger logger = Logger.getLogger(NodeWebAppServletHost.class.getName()); + + private static final NodeWebAppServletHost servletHost = new NodeWebAppServletHost(); + + private Map<String, Servlet> servlets = new HashMap<String, Servlet>(); + private SCANode2 node; + + private String contextPath = "/"; + private int defaultPort = 8080; + + /** + * Constructs a new NodeWebAppServletHost. + */ + private NodeWebAppServletHost() { + } + + /** + * Returns the Servlet host for the current Web app. + * + * @return + */ + public static NodeWebAppServletHost servletHost() { + return servletHost; + } + + /** + * Initialize the Servlet host. + * + * @param filterConfig + * @throws ServletException + */ + public void init(final FilterConfig filterConfig) throws ServletException { + + // Create a Servlet config wrapping the given filter config + ServletConfig servletConfig = servletConfig(filterConfig); + + // Get the Servlet context + ServletContext servletContext = servletConfig.getServletContext(); + + // Initialize the context path + contextPath = contextPath(servletContext); + + // Derive the node name from the Webapp context path + String nodeName = contextPath; + if (nodeName.startsWith("/")) { + nodeName = nodeName.substring(1); + } + if (nodeName.endsWith("/")) { + nodeName = nodeName.substring(0, nodeName.length() - 1); + } + + // Determine the node configuration URI + String nodeConfiguration = NodeImplementationLauncherUtil.nodeConfigurationURI(nodeName); + + // Create the SCA node + SCANode2Factory nodeFactory = SCANode2Factory.newInstance(); + node = nodeFactory.createSCANode(nodeConfiguration); + + // Register the Servlet host + ServletHostExtensionPoint servletHosts = servletHosts(node); + servletHosts.getServletHosts().clear(); + servletHosts.addServletHost(servletHost); + + // Save the node in the Servlet context + servletContext.setAttribute(SCAClient.class.getName(), node); + + // Start the node + node.start(); + + // Initialize the registered Servlets + for (Servlet servlet : servlets.values()) { + servlet.init(servletConfig); + } + } + + public void addServletMapping(String suri, Servlet servlet) throws ServletMappingException { + URI pathURI = URI.create(suri); + + // Make sure that the path starts with a / + suri = pathURI.getPath(); + if (!suri.startsWith("/")) { + suri = '/' + suri; + } + + if (!suri.startsWith(contextPath)) { + suri = contextPath + suri; + } + + // In a webapp just use the given path and ignore the host and port + // as they are fixed by the Web container + servlets.put(suri, servlet); + + logger.info("Added Servlet mapping: " + suri); + } + + public Servlet removeServletMapping(String suri) throws ServletMappingException { + URI pathURI = URI.create(suri); + + // Make sure that the path starts with a / + suri = pathURI.getPath(); + if (!suri.startsWith("/")) { + suri = '/' + suri; + } + + if (!suri.startsWith(contextPath)) { + suri = contextPath + suri; + } + + // In a webapp just use the given path and ignore the host and port + // as they are fixed by the Web container + return servlets.remove(suri); + } + + public Servlet getServletMapping(String suri) throws ServletMappingException { + if (!suri.startsWith("/")) { + suri = '/' + suri; + } + + if (!suri.startsWith(contextPath)) { + suri = contextPath + suri; + } + + // Get the Servlet mapped to the given path + Servlet servlet = servlets.get(suri); + return servlet; + } + + public URL getURLMapping(String suri) throws ServletMappingException { + URI uri = URI.create(suri); + + // Get the URI scheme and port + String scheme = uri.getScheme(); + if (scheme == null) { + scheme = "http"; + } + int portNumber = uri.getPort(); + if (portNumber == -1) { + portNumber = defaultPort; + } + + // Get the host + String host; + try { + host = InetAddress.getLocalHost().getHostName(); + } catch (UnknownHostException e) { + host = "localhost"; + } + + // Construct the URL + String path = uri.getPath(); + if (!path.startsWith("/")) { + path = '/' + path; + } + + if (contextPath != null && !path.startsWith(contextPath)) { + path = contextPath + path; + } + + URL url; + try { + url = new URL(scheme, host, portNumber, path); + } catch (MalformedURLException e) { + throw new ServletMappingException(e); + } + return url; + } + + public RequestDispatcher getRequestDispatcher(String suri) throws ServletMappingException { + + // Make sure that the path starts with a / + if (!suri.startsWith("/")) { + suri = '/' + suri; + } + + suri = contextPath + suri; + + // Get the Servlet mapped to the given path + Servlet servlet = servlets.get(suri); + if (servlet != null) { + return new NodeWebAppRequestDispatcher(suri, servlet); + } + + for (Map.Entry<String, Servlet> entry : servlets.entrySet()) { + String servletPath = entry.getKey(); + if (servletPath.endsWith("*")) { + servletPath = servletPath.substring(0, servletPath.length() - 1); + if (suri.startsWith(servletPath)) { + return new NodeWebAppRequestDispatcher(entry.getKey(), entry.getValue()); + } else { + if ((suri + "/").startsWith(servletPath)) { + return new NodeWebAppRequestDispatcher(entry.getKey(), entry.getValue()); + } + } + } + } + + // No Servlet found + return null; + } + + /** + * Destroy the Servlet host. + * + * @throws ServletException + */ + public void destroy() { + + // Destroy the registered Servlets + for (Servlet servlet : servlets.values()) { + servlet.destroy(); + } + + // Stop the node + if (node != null) { + node.stop(); + } + } + + public void doFilter(ServletRequest request, ServletResponse response, javax.servlet.FilterChain chain) + throws IOException, ServletException { + + // Get the Servlet path + HttpServletRequest httpRequest = (HttpServletRequest)request; + String path = httpRequest.getPathInfo(); + if (path == null) { + path = httpRequest.getServletPath(); + } + if (path == null) { + path = "/"; + } + + // Get a request dispatcher for the Servlet mapped to that path + RequestDispatcher dispatcher = getRequestDispatcher(path); + if (dispatcher != null) { + + // Let the dispatcher forward the request to the Servlet + dispatcher.forward(request, response); + + } else { + + // Proceed down the filter chain + chain.doFilter(request, response); + } + } + + public void setDefaultPort(int port) { + defaultPort = port; + } + + public int getDefaultPort() { + return defaultPort; + } + + public String getContextPath() { + return contextPath; + } + + public void setContextPath(String path) { + //this.contextPath = path; + } + + /** + * Initializes the contextPath + * The 2.5 Servlet API has a getter for this, for pre 2.5 Servlet + * containers use an init parameter. + */ + private static String contextPath(ServletContext context) { + String contextPath = "/"; + + // The getContextPath() is introduced since Servlet 2.5 + Method m; + try { + // Try to get the method anyway since some ServletContext impl has this method even before 2.5 + m = context.getClass().getMethod("getContextPath", new Class[] {}); + contextPath = (String)m.invoke(context, new Object[] {}); + } catch (Exception e) { + contextPath = context.getInitParameter("contextPath"); + if (contextPath == null) { + logger.warning("Servlet level is: " + context.getMajorVersion() + "." + context.getMinorVersion()); + throw new IllegalStateException( + "'contextPath' init parameter must be set for pre-2.5 servlet container"); + } + } + + logger.info("ContextPath: " + contextPath); + return contextPath; + } + + /** + * Returns the Servlet host extension point used by the given node. + * + * @return + */ + private static ServletHostExtensionPoint servletHosts(SCANode2 node) { + //FIXME Need a clean way to get the extension point registry + // from the node + ExtensionPointRegistry registry; + try { + registry = (ExtensionPointRegistry)node.getClass().getMethod("getExtensionPointRegistry").invoke(node); + } catch (Exception e) { + throw new RuntimeException(e); + } + ServletHostExtensionPoint servletHosts = registry.getExtensionPoint(ServletHostExtensionPoint.class); + return servletHosts; + } + + /** + * Returns a Servlet config wrapping a filter config. + * + * @param filterConfig + * @return + */ + private static ServletConfig servletConfig(final FilterConfig filterConfig) { + ServletConfig servletConfig = new ServletConfig() { + public String getInitParameter(String name) { + return filterConfig.getInitParameter(name); + } + + public Enumeration getInitParameterNames() { + return filterConfig.getInitParameterNames(); + } + + public ServletContext getServletContext() { + return filterConfig.getServletContext(); + } + + public String getServletName() { + return filterConfig.getFilterName(); + } + }; + return servletConfig; + } +} |