[Jnode-svn-commits] SF.net SVN: jnode:[4582] trunk/shell/src/shell/org/jnode/shell/command/ IsolateCommand.java

[<ls...@us...>]

Revision: 4582
          http://jnode.svn.sourceforge.net/jnode/?rev=4582&view=rev
Author:   lsantha
Date:     2008-09-26 17:18:55 +0000 (Fri, 26 Sep 2008)

Log Message:
-----------
Added IsolateCommand.

Added Paths:
-----------
    trunk/shell/src/shell/org/jnode/shell/command/IsolateCommand.java

Added: trunk/shell/src/shell/org/jnode/shell/command/IsolateCommand.java
===================================================================
--- trunk/shell/src/shell/org/jnode/shell/command/IsolateCommand.java	                        (rev 0)
+++ trunk/shell/src/shell/org/jnode/shell/command/IsolateCommand.java	2008-09-26 17:18:55 UTC (rev 4582)
@@ -0,0 +1,51 @@
+/*
+ * $Id$
+ */
+package org.jnode.shell.command;
+
+import org.jnode.shell.AbstractCommand;
+import org.jnode.shell.CommandLine;
+import org.jnode.vm.isolate.VmIsolate;
+import java.io.InputStream;
+import java.io.PrintStream;
+
+/**
+ * The IsolateCommand provides information about the current isolates in the system.
+ * @author Levente S\u00e1ntha
+ */
+public class IsolateCommand extends AbstractCommand {
+    /**
+     * The default implementation of the 'execute(...)' entry point complains that
+     * you haven't implemented it.  A command class must override either this method
+     * or (ideally) the 'execute()' entry point method.
+     */
+    @Override
+    public void execute(CommandLine commandLine, InputStream in, PrintStream out, PrintStream err) throws Exception {
+        out.println("      Id " + " Creator " + "State    " + "Main class");
+        VmIsolate root = VmIsolate.getRoot();
+        if(root != null)
+            out.println(format(String.valueOf(root.getId()), 8, false) + " " +
+                format("0", 8, false) + " "  +
+                format(String.valueOf(root.getState()), 8, true));
+
+        for (VmIsolate iso : VmIsolate.getVmIsolates()) {
+            out.println(format(String.valueOf(iso.getId()), 8, false) + " " +
+                format(String.valueOf(iso.getCreator().getId()), 8, false) + " " +
+                format(String.valueOf(iso.getState()), 8, true) + " " +
+                iso.getMainClassName());
+        }
+    }
+
+    public String format(String value, int width, boolean left) {
+        StringBuilder sb = new StringBuilder();
+        for(int i = 0; i < width - value.length(); i++) {
+            sb.append(' ');
+        }
+        if(left)
+            sb.insert(0, value);
+        else
+            sb.append(value);
+
+        return sb.toString();
+    }
+}


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