package simgrid.msg;
-import org.xml.sax.*;
-import org.xml.sax.helpers.*;
-import java.lang.reflect.*;
+import java.util.Vector;
+import java.util.Hashtable;
/**
* The handler used to parse the deployment file which contains
* @since SimGrid 3.3
* @since JDK1.5011
*/
-public final class ApplicationHandler extends DefaultHandler
-{
- /* the current process. */
- public simgrid.msg.Process process;
-
- public ApplicationHandler() {
- super();
- }
-
- public void startDocument() {} // NOTHING TODO
- public void endDocument() {} // NOTHING TODO
-
- public void characters(char[] chars, int beg, int lgr) {} // NOTHING TODO
-
- /**
- * element handlers
- */
- public void startElement(String nameSpace, String localName,String qName,Attributes attr) {
- if(localName.equals("process"))
- onStartProcess(attr);
- else if(localName.equals("argument"))
- onArgument(attr);
- }
- public void endElement(String nameSpace, String localName,String qName) {
- if(localName.equals("process"))
- onEndProcess();
- }
-
- /**
- * process element handler.
- */
- public void onStartProcess(Attributes attr) {
- String hostName = attr.getValue(0);
- String className = attr.getValue(1);
-
- try {
-
- Class cls = Class.forName(className);
-
- process = (simgrid.msg.Process)cls.newInstance();
- process.name = className;
- process.id = simgrid.msg.Process.nextProcessId++;
-
- Host host = Host.getByName(hostName);
-
- Msg.processCreate(process,host);
-
- } catch(Exception e) {
- e.printStackTrace();
- }
- }
-
- public void onEndProcess() {} // NOTHING TODO
-
- /**
- * function arguments handler.
- */
- public void onArgument(Attributes attr) {
- //Msg.info("Add "+attr.getValue(0)+" as argument to "+process.msgName());
- process.addArg(attr.getValue(0));
- }
-
- /**
- * end of element handler.
- */
-
+public final class ApplicationHandler {
+
+ /*
+ * This class is used to create the processes descibed in the deployment file.
+ */
+ static class ProcessFactory {
+ /**
+ * The vector which contains the arguments of the main function
+ * of the process object.
+ */
+ public Vector<String> args;
+
+ public Hashtable<String,String> properties;
+
+ /**
+ * The name of the host of the process.
+ */
+ private String hostName;
+
+ /**
+ * The function of the process.
+ */
+ private String function;
+
+
+ /**
+ * Default constructor.
+ */
+ public ProcessFactory() {
+ this.args = new Vector<String>();
+ this.properties = new Hashtable<String,String>();
+ this.hostName = null;
+ this.function = null;
+ }
+ /**
+ * This method is called by the start element handler.
+ * It sets the host and the function of the process to create,
+ * and clear the vector containing the arguments of the
+ * previouse process function if needed.
+ *
+ * @host The host of the process to create.
+ * @function The function of the process to create.
+ *
+ */
+ public void setProcessIdentity(String hostName, String function) {
+ this.hostName = hostName;
+ this.function = function;
+
+ if (!args.isEmpty())
+ args.clear();
+
+ if(!properties.isEmpty())
+ properties.clear();
+ }
+ /**
+ * This method is called by the startElement() handler.
+ * It stores the argument of the function of the next
+ * process to create in the vector of arguments.
+ *
+ * @arg The argument to add.
+ *
+ */ public void registerProcessArg(String arg) {
+ args.add(arg);
+ }
+
+ public void setProperty(String id, String value)
+ {
+ properties.put(id,value);
+ }
+
+ public String getHostName()
+ {
+ return hostName;
+ }
+
+ @SuppressWarnings("unchecked")
+ public void createProcess() {
+ try {
+ Class<simgrid.msg.Process> cls = (Class<Process>) Class.forName(this.function);
+
+ simgrid.msg.Process process = cls.newInstance();
+ process.name = this.function;
+ process.id = simgrid.msg.Process.nextProcessId++;
+ Host host = Host.getByName(this.hostName);
+
+ MsgNative.processCreate(process, host);
+ Vector args = processFactory.args;
+ int size = args.size();
+
+ for (int index = 0; index < size; index++)
+ process.args.add(args.get(index));
+
+ process.properties = this.properties;
+ this.properties = new Hashtable();
+
+ } catch(JniException e) {
+ System.out.println(e.toString());
+ e.printStackTrace();
+
+ } catch(NativeException e) {
+ System.out.println(e.toString());
+ e.printStackTrace();
+
+ } catch(HostNotFoundException e) {
+ System.out.println(e.toString());
+ e.printStackTrace();
+
+ } catch(ClassNotFoundException e) {
+ System.out.println(this.function +
+ " class not found\n The attribut function of the element process of your deployment file\n must correspond to the name of a Msg Proces class)");
+ e.printStackTrace();
+
+ } catch(InstantiationException e) {
+ System.out.println("instantiation exception");
+ e.printStackTrace();
+ } catch(IllegalAccessException e) {
+ System.out.println("illegal access exception");
+ e.printStackTrace();
+ } catch(IllegalArgumentException e) {
+ System.out.println("illegal argument exception");
+ e.printStackTrace();
+ }
+
+ }
+ }
+
+ /*
+ * the ProcessFactory object used to create the processes.
+ */
+ public static ProcessFactory processFactory;
+
+ /**
+ * instanciates the process factory
+ */
+ public static void onStartDocument() {
+ processFactory = new ProcessFactory();
+ }
+
+ public static void onBeginProcess(String hostName, String function) {
+ processFactory.setProcessIdentity(hostName, function);
+ }
+ public static void onProperty(String id, String value) {
+ processFactory.setProperty(id, value);
+ }
+
+ public static void onProcessArg(String arg) {
+ processFactory.registerProcessArg(arg);
+ }
+
+ public static void onEndProcess() {
+ processFactory.createProcess();
+ }
+
+ public static void onEndDocument() {
+ }
}
