From 9c4b694c4282f83be0b7d0b5ff772bf7164cea91 Mon Sep 17 00:00:00 2001
From: antelder <antelder@13f79535-47bb-0310-9956-ffa450edef68>
Date: Sat, 3 Jul 2010 18:19:47 +0000
Subject: Start a new module for a interactive shell copied from the new shell
 launcher sample

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@960253 13f79535-47bb-0310-9956-ffa450edef68
---
 .../modules/shell/src/main/java/sample/Shell.java  | 141 +++++++++++++++++++++
 1 file changed, 141 insertions(+)
 create mode 100644 sca-java-2.x/trunk/modules/shell/src/main/java/sample/Shell.java

(limited to 'sca-java-2.x/trunk/modules/shell/src/main/java/sample/Shell.java')

diff --git a/sca-java-2.x/trunk/modules/shell/src/main/java/sample/Shell.java b/sca-java-2.x/trunk/modules/shell/src/main/java/sample/Shell.java
new file mode 100644
index 0000000000..776b07e344
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/shell/src/main/java/sample/Shell.java
@@ -0,0 +1,141 @@
+/*
+ * 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 java.util.Arrays;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.concurrent.Callable;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.io.IOException;
+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 nodeFactory = NodeFactory.newInstance();
+
+    public static class NodeInfo {
+        final String name;
+        final String curi;
+        final String cloc;
+        final Node node;
+
+        NodeInfo(final String name, final String curi, final String cloc, final Node node) {
+            this.name = name;
+            this.curi = curi;
+            this.cloc = cloc;
+            this.node = node;
+        }
+
+        public String toString() {
+            return name + " " + curi + " " + cloc;
+        }
+    }
+    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) {
+        final Node node = nodeFactory.createNode(new Contribution(curi, cloc));
+        nodes.put(name, new NodeInfo(name, curi, cloc, node));
+        node.start();
+        return true;
+    }
+
+    boolean stop(final String name) {
+        nodes.get(name).node.stop();
+        nodes.remove(name);
+        return true;
+    }
+
+    boolean status() {
+        out.println(nodes.values());
+        return true;
+    }
+
+    boolean history() {
+        for (String l: history)
+            out.println(l);
+        return true;
+    }
+
+    static boolean bye() {
+        return false;
+    }
+
+    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(" "));
+    }
+       
+    Callable<Boolean> eval(final List<String> toks) {
+        final String op = toks.get(0);
+        if (op.equals("start")) return new Callable<Boolean>() { public Boolean call() {
+            return start(toks.get(1), toks.get(2), toks.get(3));
+        }};
+        if (op.equals("stop")) return new Callable<Boolean>() { public Boolean call() {
+            return stop(toks.get(1));
+        }};
+        if (op.equals("status")) return new Callable<Boolean>() { public Boolean call() {
+            return status();
+        }};
+        if (op.equals("history")) return new Callable<Boolean>() { public Boolean call() {
+            return history();
+        }};
+        if (op.equals("bye")) return new Callable<Boolean>() { public Boolean call() {
+            return bye();
+        }};
+        return new Callable<Boolean>() { public Boolean call() {
+            return true;
+        }};
+    }
+
+    boolean apply(final Callable<Boolean> func) {
+        try {
+            return func.call();
+        } catch (Exception e) {
+            e.printStackTrace();
+            return true;
+        }
+    }
+
+    public Map<String, NodeInfo> run() throws IOException {
+        final BufferedReader r = new BufferedReader(new InputStreamReader(in));
+        while(apply(eval(read(r))));
+        return nodes;
+    }
+}
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