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authorlresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>2008-11-19 00:10:54 +0000
committerlresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>2008-11-19 00:10:54 +0000
commit60744a36aae604ac3c4499ed54f1082ab8f5947d (patch)
treee31d312659c912cdf29ef7a677406795fe5b3726 /java/sca/modules/node-manager
parentad1c9458ea08eb593be252b706a88568f17c494c (diff)
Copying modules from Equinox branch, to start merging the delta changes from 1.x/original trunk
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@718815 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'java/sca/modules/node-manager')
-rw-r--r--java/sca/modules/node-manager/LICENSE205
-rw-r--r--java/sca/modules/node-manager/META-INF/MANIFEST.MF22
-rw-r--r--java/sca/modules/node-manager/NOTICE6
-rw-r--r--java/sca/modules/node-manager/pom.xml112
-rw-r--r--java/sca/modules/node-manager/src/main/java/org/apache/tuscany/sca/implementation/node/manager/NodeManagerUtil.java51
-rw-r--r--java/sca/modules/node-manager/src/main/java/org/apache/tuscany/sca/implementation/node/manager/NodeProcessCollectionImpl.java338
-rw-r--r--java/sca/modules/node-manager/src/main/java/org/apache/tuscany/sca/implementation/node/manager/PingServiceImpl.java61
-rw-r--r--java/sca/modules/node-manager/src/main/resources/NodeDaemon.composite39
8 files changed, 834 insertions, 0 deletions
diff --git a/java/sca/modules/node-manager/LICENSE b/java/sca/modules/node-manager/LICENSE
new file mode 100644
index 0000000000..8aa906c321
--- /dev/null
+++ b/java/sca/modules/node-manager/LICENSE
@@ -0,0 +1,205 @@
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
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+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
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+ "Licensor" shall mean the copyright owner or entity authorized by
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+ "Work" shall mean the work of authorship, whether in Source or
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+ copyright notice that is included in or attached to the work
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+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
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+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
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+ means any form of electronic, verbal, or written communication sent
+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
+ Licensor for the purpose of discussing and improving the Work, but
+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
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+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
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+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
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+ Work and such Derivative Works in Source or Object form.
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+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
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+ Contribution(s) alone or by combination of their Contribution(s)
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+ institute patent litigation against any entity (including a
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+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
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+ of the NOTICE file are for informational purposes only and
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+ You may add Your own copyright statement to Your modifications and
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+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
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+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
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+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
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+ Licensed under the Apache License, Version 2.0 (the "License");
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+ Unless required by applicable law or agreed to in writing, software
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+
diff --git a/java/sca/modules/node-manager/META-INF/MANIFEST.MF b/java/sca/modules/node-manager/META-INF/MANIFEST.MF
new file mode 100644
index 0000000000..4bd395d6f6
--- /dev/null
+++ b/java/sca/modules/node-manager/META-INF/MANIFEST.MF
@@ -0,0 +1,22 @@
+Manifest-Version: 1.0
+Export-Package: org.apache.tuscany.sca.implementation.node.manager;use
+ s:="javax.servlet,org.osoa.sca.annotations,org.apache.tuscany.sca.dat
+ a.collection,org.apache.tuscany.sca.node.launcher,javax.xml.parsers,o
+ rg.osoa.sca,javax.servlet.http";version="1.4"
+Tool: Bnd-0.0.255
+Bundle-Name: Apache Tuscany SCA Node Manager Application
+Created-By: 1.6.0_07 (Sun Microsystems Inc.)
+Bundle-Vendor: The Apache Software Foundation
+Bundle-Version: 1.4
+Bnd-LastModified: 1225397411859
+Bundle-ManifestVersion: 2
+Bundle-License: http://www.apache.org/licenses/LICENSE-2.0.txt
+Bundle-Description: Apache Tuscany SCA Node Manager Application
+Import-Package: javax.servlet,javax.servlet.http,javax.xml.parsers,org
+ .apache.tuscany.sca.data.collection;version="1.4",org.apache.tuscany.
+ sca.implementation.node.manager;version="1.4",org.apache.tuscany.sca.
+ node.launcher;version="1.4",org.osoa.sca;version="1.4",org.osoa.sca.a
+ nnotations;version="1.4"
+Bundle-SymbolicName: org.apache.tuscany.sca.node.manager
+Bundle-DocURL: http://www.apache.org/
+
diff --git a/java/sca/modules/node-manager/NOTICE b/java/sca/modules/node-manager/NOTICE
new file mode 100644
index 0000000000..94481d6cfa
--- /dev/null
+++ b/java/sca/modules/node-manager/NOTICE
@@ -0,0 +1,6 @@
+${pom.name}
+Copyright (c) 2005 - 2007 The Apache Software Foundation
+
+This product includes software developed by
+The Apache Software Foundation (http://www.apache.org/).
+
diff --git a/java/sca/modules/node-manager/pom.xml b/java/sca/modules/node-manager/pom.xml
new file mode 100644
index 0000000000..d942932188
--- /dev/null
+++ b/java/sca/modules/node-manager/pom.xml
@@ -0,0 +1,112 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * 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.
+-->
+<project>
+ <modelVersion>4.0.0</modelVersion>
+ <parent>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-modules</artifactId>
+ <version>1.4-EQUINOX-SNAPSHOT</version>
+ <relativePath>../pom.xml</relativePath>
+ </parent>
+
+ <artifactId>tuscany-node-manager</artifactId>
+ <name>Apache Tuscany SCA Node Manager Application</name>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-implementation-node</artifactId>
+ <version>1.4-EQUINOX-SNAPSHOT</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-core-spi</artifactId>
+ <version>1.4-EQUINOX-SNAPSHOT</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-node-api</artifactId>
+ <version>1.4-EQUINOX-SNAPSHOT</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-node-launcher</artifactId>
+ <version>1.4-EQUINOX-SNAPSHOT</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-data-api</artifactId>
+ <version>1.4-EQUINOX-SNAPSHOT</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-host-http</artifactId>
+ <version>1.4-EQUINOX-SNAPSHOT</version>
+ </dependency>
+
+ <dependency>
+ <groupId>javax.servlet</groupId>
+ <artifactId>servlet-api</artifactId>
+ <version>2.5</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-node-impl</artifactId>
+ <version>1.4-EQUINOX-SNAPSHOT</version>
+ <scope>runtime</scope>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-host-jetty</artifactId>
+ <version>1.4-EQUINOX-SNAPSHOT</version>
+ <scope>runtime</scope>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-implementation-java-runtime</artifactId>
+ <version>1.4-EQUINOX-SNAPSHOT</version>
+ <scope>runtime</scope>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-binding-atom-abdera</artifactId>
+ <version>1.4-EQUINOX-SNAPSHOT</version>
+ <scope>runtime</scope>
+ </dependency>
+
+ <dependency>
+ <groupId>junit</groupId>
+ <artifactId>junit</artifactId>
+ <version>4.5</version>
+ <scope>test</scope>
+ </dependency>
+
+ </dependencies>
+
+</project>
diff --git a/java/sca/modules/node-manager/src/main/java/org/apache/tuscany/sca/implementation/node/manager/NodeManagerUtil.java b/java/sca/modules/node-manager/src/main/java/org/apache/tuscany/sca/implementation/node/manager/NodeManagerUtil.java
new file mode 100644
index 0000000000..8dfae91314
--- /dev/null
+++ b/java/sca/modules/node-manager/src/main/java/org/apache/tuscany/sca/implementation/node/manager/NodeManagerUtil.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.manager;
+
+/**
+ * Utility methods for node implementation launchers.
+ *
+ * @version $Rev$ $Date$
+ */
+public class NodeManagerUtil {
+
+ 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/java/sca/modules/node-manager/src/main/java/org/apache/tuscany/sca/implementation/node/manager/NodeProcessCollectionImpl.java b/java/sca/modules/node-manager/src/main/java/org/apache/tuscany/sca/implementation/node/manager/NodeProcessCollectionImpl.java
new file mode 100644
index 0000000000..019c2562ec
--- /dev/null
+++ b/java/sca/modules/node-manager/src/main/java/org/apache/tuscany/sca/implementation/node/manager/NodeProcessCollectionImpl.java
@@ -0,0 +1,338 @@
+/*
+ * 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.manager;
+
+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 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 = NodeManagerUtil.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 main = NodeLauncher.class.getName();
+ final List<String> command = new ArrayList<String>();
+ command.add(java);
+ command.add("-cp");
+ command.add(cp);
+
+ // Propagate TUSCANY properties
+ String tuscanyHome = props.getProperty("TUSCANY_HOME");
+ if (tuscanyHome != null) {
+ command.add("-DTUSCANY_HOME=" + tuscanyHome);
+ }
+ String tuscanyPath = props.getProperty("TUSCANY_PATH");
+ if (tuscanyPath != null) {
+ command.add("-DTUSCANY_PATH=" + tuscanyPath);
+ }
+
+ // Specify the main class and parameters
+ command.add(main);
+ command.add(nodeConfigurationURI);
+
+ logger.info("Starting " + "java " + main + " " + nodeConfigurationURI);
+
+ // 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/java/sca/modules/node-manager/src/main/java/org/apache/tuscany/sca/implementation/node/manager/PingServiceImpl.java b/java/sca/modules/node-manager/src/main/java/org/apache/tuscany/sca/implementation/node/manager/PingServiceImpl.java
new file mode 100644
index 0000000000..d0475e1dd3
--- /dev/null
+++ b/java/sca/modules/node-manager/src/main/java/org/apache/tuscany/sca/implementation/node/manager/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.manager;
+
+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/java/sca/modules/node-manager/src/main/resources/NodeDaemon.composite b/java/sca/modules/node-manager/src/main/resources/NodeDaemon.composite
new file mode 100644
index 0000000000..cb587b02fd
--- /dev/null
+++ b/java/sca/modules/node-manager/src/main/resources/NodeDaemon.composite
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * 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.
+-->
+<composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
+ xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
+ targetNamespace="http://tuscany.apache.org/xmlns/sca/1.0"
+ name="NodeDaemon">
+
+ <component name="NodeProcessCollectionComponent">
+ <implementation.java class="org.apache.tuscany.sca.implementation.node.manager.NodeProcessCollectionImpl"/>
+ <service name="ItemCollection">
+ <t:binding.atom uri="http://localhost:9990/node/processes" title="Log"/>
+ </service>
+ </component>
+
+ <component name="PingServiceComponent">
+ <implementation.java class="org.apache.tuscany.sca.implementation.node.manager.PingServiceImpl"/>
+ <service name="Servlet">
+ <t:binding.http uri="http://localhost:9990/ping"/>
+ </service>
+ </component>
+
+</composite>