diff options
Diffstat (limited to 'sandbox/sebastien/java/vhost/samples/running-tuscany/shell/src')
4 files changed, 341 insertions, 0 deletions
diff --git a/sandbox/sebastien/java/vhost/samples/running-tuscany/shell/src/main/java/sample/Shell.java b/sandbox/sebastien/java/vhost/samples/running-tuscany/shell/src/main/java/sample/Shell.java new file mode 100644 index 0000000000..d0d8fb5dfe --- /dev/null +++ b/sandbox/sebastien/java/vhost/samples/running-tuscany/shell/src/main/java/sample/Shell.java @@ -0,0 +1,203 @@ +/*
+ * 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 sample;
+
+import static java.lang.System.in;
+import static java.lang.System.out;
+import static java.util.Collections.emptyList;
+import static java.util.Collections.singletonList;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.Callable;
+
+import org.apache.tuscany.sca.node.Contribution;
+import org.apache.tuscany.sca.node.Node;
+import org.apache.tuscany.sca.node.NodeFactory;
+
+/**
+ * A little SCA command shell.
+ */
+public class Shell {
+ final NodeFactory nf;
+
+ public static class Nodeconf {
+ final String name;
+ final String cloc;
+ final String dcuri;
+ final Node node;
+
+ Nodeconf(final String name, final String cloc, final String dcuri, final Node node) {
+ this.name = name;
+ this.cloc = cloc;
+ this.dcuri = dcuri;
+ this.node = node;
+ }
+
+ public String toString() {
+ return name + " " + cloc + (dcuri != null? " " + dcuri : "");
+ }
+ }
+
+ final Map<String, Nodeconf> nodes = new HashMap<String, Nodeconf>();
+ final List<String> history = new ArrayList<String>();
+
+ public Shell(NodeFactory nf) {
+ this.nf = nf;
+ }
+
+ List<?> start(final String name, final String cloc, final String dcuri) {
+ if(nodes.containsKey(name))
+ return emptyList();
+ final Node node = dcuri != null? nf.createNode(dcuri, new Contribution(cloc, cloc)) : nf.createNode(new Contribution(cloc, cloc));
+ nodes.put(name, new Nodeconf(name, cloc, dcuri, node));
+ node.start();
+ return emptyList();
+ }
+
+ List<?> stop(final String name) {
+ final Nodeconf ninfo = nodes.get(name);
+ if(ninfo == null)
+ return emptyList();
+ ninfo.node.stop();
+ nodes.remove(name);
+ return emptyList();
+ }
+
+ List<?> stop() {
+ for(Nodeconf ninfo: nodes.values())
+ ninfo.node.stop();
+ nodes.clear();
+ return emptyList();
+ }
+
+ List<?> restart(final String name, final String cloc, final String dcuri) {
+ final Nodeconf ninfo = nodes.get(name);
+ if(ninfo == null)
+ return start(name, cloc, dcuri);
+ ninfo.node.stop();
+ nodes.remove(name);
+ if (cloc == null)
+ return start(ninfo.name, ninfo.cloc, ninfo.dcuri);
+ return start(name, cloc, dcuri);
+ }
+
+ List<?> status() {
+ return new ArrayList<Object>(nodes.values());
+ }
+
+ List<?> history() {
+ return history;
+ }
+
+ List<?> bye() {
+ return null;
+ }
+
+ List<String> read(final BufferedReader r) throws IOException {
+ final String l = r.readLine();
+ history.add(l);
+ return l != null ? Arrays.asList(l.split(" ")) : singletonList("bye");
+ }
+
+ Callable<List<?>> eval(final List<String> toks) {
+ final String op = toks.get(0);
+ if(op.equals("start"))
+ return new Callable<List<?>>() {
+ public List<?> call() {
+ return start(toks.get(1), toks.get(2), toks.size() >= 4? toks.get(3) : null);
+ }
+ };
+ if(op.equals("stop"))
+ return new Callable<List<?>>() {
+ public List<?> call() {
+ if(toks.size() == 1)
+ return stop();
+ return stop(toks.get(1));
+ }
+ };
+ if(op.equals("restart"))
+ return new Callable<List<?>>() {
+ public List<?> call() {
+ return restart(toks.get(1), toks.size() >= 3? toks.get(2) : null, toks.size() >= 4? toks.get(3) : null);
+ }
+ };
+ if(op.equals("status"))
+ return new Callable<List<?>>() {
+ public List<?> call() {
+ return status();
+ }
+ };
+ if(op.equals("history"))
+ return new Callable<List<?>>() {
+ public List<?> call() {
+ return history();
+ }
+ };
+ if(op.equals("bye"))
+ return new Callable<List<?>>() {
+ public List<?> call() {
+ return bye();
+ }
+ };
+ return new Callable<List<?>>() {
+ public List<?> call() {
+ return emptyList();
+ }
+ };
+ }
+
+ List<?> apply(final Callable<List<?>> func) {
+ try {
+ return func.call();
+ } catch(Exception e) {
+ StringWriter sw = new StringWriter();
+ e.printStackTrace(new PrintWriter(sw));
+ return singletonList(sw);
+ }
+ }
+
+ boolean print(final List<?> l, PrintWriter w) {
+ if(l == null)
+ return false;
+ for(Object o: l)
+ w.println(o);
+ return true;
+ }
+
+ public Map<String, Nodeconf> run(final BufferedReader r, final PrintWriter w) throws IOException {
+ while(print(apply(eval(read(r))), w))
+ ;
+ r.close();
+ return nodes;
+ }
+
+ public static void main(final String[] args) throws Exception {
+ new Shell(NodeFactory.newInstance()).run(new BufferedReader(new InputStreamReader(in)), new PrintWriter(out, true));
+ }
+}
diff --git a/sandbox/sebastien/java/vhost/samples/running-tuscany/shell/src/main/java/sample/ShellServlet.java b/sandbox/sebastien/java/vhost/samples/running-tuscany/shell/src/main/java/sample/ShellServlet.java new file mode 100644 index 0000000000..55aadbd09b --- /dev/null +++ b/sandbox/sebastien/java/vhost/samples/running-tuscany/shell/src/main/java/sample/ShellServlet.java @@ -0,0 +1,48 @@ +/* + * 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 sample; + +import java.io.BufferedReader; +import java.io.IOException; +import java.io.InputStreamReader; +import java.net.URL; + +import javax.servlet.http.HttpServlet; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; + +import org.apache.tuscany.sca.host.webapp.WebAppHelper; + +public class ShellServlet extends HttpServlet { + static final long serialVersionUID = 1L; + + Shell shell; + + public void init() { + shell = new Shell(WebAppHelper.getNodeFactory()); + } + + public void destroy() { + shell.stop(); + } + + protected void doGet(final HttpServletRequest req, final HttpServletResponse resp) throws IOException { + shell.run(new BufferedReader(new InputStreamReader(new URL(req.getParameter("conf")).openStream())), resp.getWriter()); + } +} diff --git a/sandbox/sebastien/java/vhost/samples/running-tuscany/shell/src/main/webapp/WEB-INF/web.xml b/sandbox/sebastien/java/vhost/samples/running-tuscany/shell/src/main/webapp/WEB-INF/web.xml new file mode 100644 index 0000000000..ac1ad1cc8e --- /dev/null +++ b/sandbox/sebastien/java/vhost/samples/running-tuscany/shell/src/main/webapp/WEB-INF/web.xml @@ -0,0 +1,48 @@ +<?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. +--> +<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> + <display-name>scashell</display-name> + + <listener><listener-class>org.apache.tuscany.sca.host.webapp.TuscanyContextListener</listener-class></listener> + + <filter> + <filter-name>tuscany</filter-name> + <filter-class>org.apache.tuscany.sca.host.webapp.TuscanyServletFilter</filter-class> + </filter> + + <filter-mapping> + <filter-name>tuscany</filter-name> + <url-pattern>/*</url-pattern> + </filter-mapping> + + <servlet> + <servlet-name>ShellServlet</servlet-name> + <servlet-class>sample.ShellServlet</servlet-class> + </servlet> + + <servlet-mapping> + <servlet-name>ShellServlet</servlet-name> + <url-pattern>/run</url-pattern> + </servlet-mapping> + + <welcome-file-list id="WelcomeFileList"> + <welcome-file>index.html</welcome-file> + </welcome-file-list> +</web-app> diff --git a/sandbox/sebastien/java/vhost/samples/running-tuscany/shell/src/main/webapp/index.html b/sandbox/sebastien/java/vhost/samples/running-tuscany/shell/src/main/webapp/index.html new file mode 100644 index 0000000000..7d8a8568e8 --- /dev/null +++ b/sandbox/sebastien/java/vhost/samples/running-tuscany/shell/src/main/webapp/index.html @@ -0,0 +1,42 @@ +<!-- + * 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. +--> +<html> +<head> +<title>Sample Runtime Shell</title> +</head> +<body> +<h1>It works</h1> + +<p>This Web app runs a sample Tuscany runtime shell similar to samples/launcher-shell.<br/> +To see how it works and what configuration commands are supported, just read the Shell program's <a href="http://svn.apache.org/repos/asf/tuscany/sca-java-2.x/trunk/samples/running-tuscany/launcher-shell/src/main/java/sample/Shell.java">source code</a>.</p> + +<p>Configuration commands can be provided through a text document served from a Web location, for example:<br/> +<a href="http://svn.apache.org/repos/asf/tuscany/sca-java-2.x/trunk/samples/running-tuscany/launcher-shell/scripts/test-start.txt">http://svn.apache.org/repos/asf/tuscany/sca-java-2.x/trunk/samples/running-tuscany/launcher-shell/scripts/test-start.txt</a></p> + +<p>To run that particular configuration script just point your Web browser to:<br/> +<a href="/scashell/run?conf=http://svn.apache.org/repos/asf/tuscany/sca-java-2.x/trunk/samples/running-tuscany/launcher-shell/scripts/test-start.txt">http://localhost:8080/scashell/run?conf=http://svn.apache.org/repos/asf/tuscany/sca-java-2.x/trunk/samples/running-tuscany/launcher-shell/scripts/test-start.txt</a><br/> +To run the script again and refresh the runtime shell, just refresh that page in your Web browser. +</p> + +<p>This script starts the Tuscany sample store application. Click <a href="/scashell/store/">here</a> to use that application after you've started it.</p> + +<p>Sample configuration script samples are available in the Tuscany Subversion repository <a href="http://svn.apache.org/repos/asf/tuscany/sca-java-2.x/trunk/samples/running-tuscany/launcher-shell/scripts/">there</a>. + +</body> +</html> |