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/*
* 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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