diff options
Diffstat (limited to '')
| -rw-r--r-- | sca-java-2.x/trunk/samples/launcher-shell/src/main/java/sample/Shell.java | 105 |
1 files changed, 69 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));
+ }
}
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