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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 org.apache.tuscany.sca.impl;
import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.URL;
import org.apache.tuscany.sca.node.Node;
import org.apache.tuscany.sca.node.NodeFactory;
/**
* Main class for Tuscany. Just looking at what it means to read config from a directory structure.
*
*/
public class Tuscany {
public static void main(String[] args) throws Exception {
String domainName = args[0];
String nodeName = args[1];
int deamonPort = -1;
if (args.length > 2){
deamonPort = Integer.parseInt(args[2]);
}
// find the domain directory
File currentDirectory = new File(".");
File domainDirectory = findDirectory(currentDirectory, domainName);
System.out.println("Domain: " + domainDirectory.getPath());
// find a sub directory that ends in nodeName
File nodeDirectory = findDirectory(currentDirectory, nodeName);
System.out.println("Node: " + nodeDirectory.getPath());
// start a node with the node configuration
/* don't know how to start the node using the following
TuscanyRuntime tuscanyRuntime = TuscanyRuntime.newInstance();
Node node = tuscanyRuntime.createNodeFromXML(nodeDirectory.getPath() +
File.separator +
"node.xml");
*/
NodeFactory nodeFactory = NodeFactory.newInstance();
URL nodeConfigURL = nodeDirectory.toURI().resolve("node.xml").toURL();
Node node = nodeFactory.createNode(nodeConfigURL);
try {
node.start();
// for testing we're going to set up a deamon that listens for
// a shutdown message on a specified port (well it actually just
// waits for a client to connect to the port as that's all we need
// for now). If no port is specified then just stop straight away
if (deamonPort >= 0){
// Its a runtime that has to act as a deamon
ServerSocket serverSocket = null;
try {
serverSocket = new ServerSocket(deamonPort);
} catch (IOException e) {
System.out.println("Can't create a ServerSocket on port: " + deamonPort);
return;
}
// all we're doing here is waiting for a connection. If we wanted to implement
// a real deamon we should perhaps listen to what's coming in over the resulting socket
// and see if a shutdown has been requested
Socket clientSocket = null;
try {
clientSocket = serverSocket.accept();
} catch (IOException e) {
System.out.println("Accept failed on port: " + deamonPort);
return;
}
}
} finally {
node.stop();
}
}
/**
* Just walks down the tree (depth first) looking for a directory ending in the
* name.
*/
private static File findDirectory(File currentDirectory, String name){
File directory = null;
if (currentDirectory.getPath().endsWith(name)){
directory = currentDirectory;
} else {
File[] subDirectories = currentDirectory.listFiles(new DirectoryFilter());
for (File aDirectory : subDirectories) {
directory = findDirectory(aDirectory, name);
if (directory != null){
break;
}
}
}
return directory;
}
private static class DirectoryFilter implements FilenameFilter {
public boolean accept(File dir, String name) {
if(new File(dir, name).isDirectory()) {
return true;
}
return false;
}
}
}
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