Minor command cleanup, factored out System.in/out to work as well in a Webapp, renamed test scripts.

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@962959 13f79535-47bb-0310-9956-ffa450edef68

4 files changed, 208 insertions, 36 deletions

diff --git a/sca-java-2.x/trunk/samples/launcher-shell/src/main/java/sample/Shell.java b/sca-java-2.x/trunk/samples/launcher-shell/src/main/java/sample/Shell.java
index 776b07e344..3ffff389c8 100644
--- a/sca-java-2.x/trunk/samples/launcher-shell/src/main/java/sample/Shell.java
+++ b/sca-java-2.x/trunk/samples/launcher-shell/src/main/java/sample/Shell.java
@@ -21,6 +21,8 @@ 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.util.Arrays;

 import java.util.List;

@@ -29,7 +31,9 @@ import java.util.Map;
 import java.util.HashMap;

 import java.util.concurrent.Callable;

 import java.io.BufferedReader;

+import java.io.PrintWriter;

 import java.io.InputStreamReader;

+import java.io.OutputStreamWriter;

 import java.io.IOException;

 import org.apache.tuscany.sca.node.Contribution;

 import org.apache.tuscany.sca.node.Node;

@@ -40,7 +44,7 @@ import org.apache.tuscany.sca.node.NodeFactory;
  * A little SCA command shell.

  */

 public class Shell {

-    final NodeFactory nodeFactory = NodeFactory.newInstance();

+    final NodeFactory nodeFactory;

 

     public static class NodeInfo {

         final String name;

@@ -59,83 +63,112 @@ public class Shell {
             return name + " " + curi + " " + cloc;

         }

     }

-    final Map<String, NodeInfo> nodes = new HashMap<String, NodeInfo>();

 

+    final Map<String, NodeInfo> nodes = new HashMap<String, NodeInfo>();

     final List<String> history = new ArrayList<String>();

-    

-    public static void main(final String[] args) throws Exception {

-        new Shell().run();

-    }

 

-    boolean start(final String name, final String curi, final String cloc) {

+    public Shell(NodeFactory nf) {

+        this.nodeFactory = nf;

+    }

+    

+    List<?> start(final String name, final String curi, final String cloc) {

+        if (nodes.containsKey(name))

+            return emptyList();

         final Node node = nodeFactory.createNode(new Contribution(curi, cloc));

         nodes.put(name, new NodeInfo(name, curi, cloc, node));

         node.start();

-        return true;

+        return emptyList();

     }

 

-    boolean stop(final String name) {

-        nodes.get(name).node.stop();

+    List<?> stop(final String name) {

+        final NodeInfo ninfo = nodes.get(name);

+        if (ninfo == null)

+            return emptyList();

+        ninfo.node.stop();

         nodes.remove(name);

-        return true;

+        return emptyList();

     }

 

-    boolean status() {

-        out.println(nodes.values());

-        return true;

+    List<?> stop() {

+        for (NodeInfo ninfo: nodes.values())

+            ninfo.node.stop();

+        nodes.clear();

+        return emptyList();

     }

 

-    boolean history() {

-        for (String l: history)

-            out.println(l);

-        return true;

+    List<?> restart(final String name, final String curi, final String cloc) {

+        stop(name);

+        return start(name, curi, cloc);

     }

 

-    static boolean bye() {

-        return false;

+    List<?> status() {

+        return new ArrayList(nodes.values());

+    }

+

+    List<?> history() {

+        return history;

+    }

+

+    List<?> bye() {

+        return null;

     }

 

     List<String> read(final BufferedReader r) throws IOException {

-        out.print("=> ");

         final String l = r.readLine();

         history.add(l);

-        return Arrays.asList(l != null? l.split(" ") : "bye".split(" "));

+        return l != null? Arrays.asList(l.split(" ")) : singletonList("bye");

     }

        

-    Callable<Boolean> eval(final List<String> toks) {

+    Callable<List<?>> eval(final List<String> toks) {

         final String op = toks.get(0);

-        if (op.equals("start")) return new Callable<Boolean>() { public Boolean call() {

+        if(op.equals("start")) return new Callable<List<?>>() { public List<?> call() {

             return start(toks.get(1), toks.get(2), toks.get(3));

         }};

-        if (op.equals("stop")) return new Callable<Boolean>() { public Boolean call() {

+        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("status")) return new Callable<Boolean>() { public Boolean call() {

+        if(op.equals("restart")) return new Callable<List<?>>() { public List<?> call() {

+            return restart(toks.get(1), toks.get(2), toks.get(3));

+        }};

+        if(op.equals("status")) return new Callable<List<?>>() { public List<?> call() {

             return status();

         }};

-        if (op.equals("history")) return new Callable<Boolean>() { public Boolean call() {

+        if(op.equals("history")) return new Callable<List<?>>() { public List<?> call() {

             return history();

         }};

-        if (op.equals("bye")) return new Callable<Boolean>() { public Boolean call() {

+        if(op.equals("bye")) return new Callable<List<?>>() { public List<?> call() {

             return bye();

         }};

-        return new Callable<Boolean>() { public Boolean call() {

-            return true;

+        return new Callable<List<?>>() { public List<?> call() {

+            return emptyList();

         }};

     }

 

-    boolean apply(final Callable<Boolean> func) {

+    List<?> apply(final Callable<List<?>> func) {

         try {

             return func.call();

         } catch (Exception e) {

-            e.printStackTrace();

-            return true;

+            return singletonList(e);

         }

     }

 

-    public Map<String, NodeInfo> run() throws IOException {

-        final BufferedReader r = new BufferedReader(new InputStreamReader(in));

-        while(apply(eval(read(r))));

+    boolean print(final List<?> l, PrintWriter w) {

+        if(l == null)

+            return false;

+        for(Object o: l)

+            w.println(o);

+        return true;

+    }

+

+    public Map<String, NodeInfo> 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/sca-java-2.x/trunk/samples/launcher-shell/src/main/java/sample/ShellServlet.java b/sca-java-2.x/trunk/samples/launcher-shell/src/main/java/sample/ShellServlet.java
new file mode 100644
index 0000000000..76c5758384
--- /dev/null
+++ b/sca-java-2.x/trunk/samples/launcher-shell/src/main/java/sample/ShellServlet.java
@@ -0,0 +1,53 @@
+/*
+ * 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.IOException;
+import java.io.Writer;
+import java.io.BufferedReader;
+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;
+
+    //@Override
+    public void init() {
+        shell = new Shell(WebAppHelper.getNodeFactory());
+    }
+
+    //@Override
+    public void destroy() {
+        shell.stop();
+    }
+
+    //@Override
+    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/sca-java-2.x/trunk/samples/launcher-shell/src/main/webapp/WEB-INF/web.xml b/sca-java-2.x/trunk/samples/launcher-shell/src/main/webapp/WEB-INF/web.xml
new file mode 100644
index 0000000000..661ce366c5
--- /dev/null
+++ b/sca-java-2.x/trunk/samples/launcher-shell/src/main/webapp/WEB-INF/web.xml
@@ -0,0 +1,46 @@
+<?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>
+
+  <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/sca-java-2.x/trunk/samples/launcher-shell/src/main/webapp/index.html b/sca-java-2.x/trunk/samples/launcher-shell/src/main/webapp/index.html
new file mode 100644
index 0000000000..d2ae91e0e9
--- /dev/null
+++ b/sca-java-2.x/trunk/samples/launcher-shell/src/main/webapp/index.html
@@ -0,0 +1,40 @@
+<!--
+    * 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/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/launcher-shell/scripts/test-start.txt">http://svn.apache.org/repos/asf/tuscany/sca-java-2.x/trunk/samples/launcher-shell/scripts/test-start.txt</a></p>
+
+<p>To run that particular configuration script just point your Web browser to:<br/>
+<a href="http://localhost:8080/scashell/run?conf=http://svn.apache.org/repos/asf/tuscany/sca-java-2.x/trunk/samples/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/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>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/launcher-shell/scripts/">there</a>.
+
+</body>
+</html>