[Rubyeclipse-commit] SF.net SVN: rubyeclipse: [1804] trunk/org.rubypeople.rdt.launching/src/org/ rubypeople/rdt/launching/VMStandin.java

[<caw...@us...>]

Revision: 1804
          http://svn.sourceforge.net/rubyeclipse/?rev=1804&view=rev
Author:   cawilliams
Date:     2007-01-18 13:46:46 -0800 (Thu, 18 Jan 2007)

Log Message:
-----------
moved to externally facing package

Added Paths:
-----------
    trunk/org.rubypeople.rdt.launching/src/org/rubypeople/rdt/launching/VMStandin.java

Added: trunk/org.rubypeople.rdt.launching/src/org/rubypeople/rdt/launching/VMStandin.java
===================================================================
--- trunk/org.rubypeople.rdt.launching/src/org/rubypeople/rdt/launching/VMStandin.java	                        (rev 0)
+++ trunk/org.rubypeople.rdt.launching/src/org/rubypeople/rdt/launching/VMStandin.java	2007-01-18 21:46:46 UTC (rev 1804)
@@ -0,0 +1,158 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.rubypeople.rdt.launching;
+
+import java.io.File;
+import java.util.List;
+
+import org.eclipse.core.runtime.CoreException;
+import org.rubypeople.rdt.internal.launching.IllegalCommandException;
+
+
+
+/**
+ * An implementation of IVMInstall that is used for manipulating VMs without necessarily 
+ * committing changes.
+ * <p>
+ * Instances of this class act like wrappers.  All other instances of IVMInstall represent 
+ * 'real live' VMs that may be used for building or launching.  Instances of this class
+ * behave like 'temporary' VMs that are not visible and not available for building or launching.
+ * </p>
+ * <p>
+ * Instances of this class may be constructed as a preliminary step to creating a 'live' VM
+ * or as a preliminary step to making changes to a 'real' VM.
+ * </p>
+ * When <code>convertToRealVM</code> is called, a corresponding 'real' VM is created
+ * if one did not previously exist, or the corresponding 'real' VM is updated.
+ * </p>
+ * <p>
+ * Clients may instantiate this class; it is not intended to be subclassed.
+ * </p>
+ * 
+ * @since 0.9.0
+ */
+public class VMStandin extends AbstractVMInstall {
+    
+    /**
+     * <code>java.version</code> system property, or <code>null</code>
+     * @since 0.9.0
+     */
+    private String fRubyVersion = null;
+
+	/*
+	 * @see org.eclipse.jdt.launching.AbstractVMInstall#AbstractVMInstall(org.eclipse.jdt.launching.IVMInstallType, java.lang.String)
+	 */
+	public VMStandin(IVMInstallType type, String id) {
+		super(type, id);
+		setNotify(false);
+	}
+	
+	/**
+	 * Constructs a copy of the specified VM with the given identifier.
+	 * 
+	 * @param sourceVM
+	 * @param id
+	 * @since 3.2
+	 */
+	public VMStandin(IVMInstall sourceVM, String id) {
+		super(sourceVM.getVMInstallType(), id);
+		setNotify(false);
+		init(sourceVM);
+	}
+	
+	/**
+	 * Construct a <code>VMStandin</code> instance based on the specified <code>IVMInstall</code>.
+	 * Changes to this standin will not be reflected in the 'real' VM until <code>convertToRealVM</code>
+	 * is called.
+	 * 
+	 * @param realVM the 'real' VM from which to construct this standin VM
+	 */
+	public VMStandin(IVMInstall realVM) {
+		this (realVM.getVMInstallType(), realVM.getId());
+		init(realVM);
+	}
+
+	/**
+	 * Initializes the settings of this standin based on the settings in the given
+	 * VM install.
+	 * 
+	 * @param realVM VM to copy settings from
+	 */
+	private void init(IVMInstall realVM) {
+		setName(realVM.getName());
+		setInstallLocation(realVM.getInstallLocation());
+		setLibraryLocations(realVM.getLibraryLocations());
+		if (realVM instanceof IVMInstall2) {
+			IVMInstall2 vm2 = (IVMInstall2) realVM;
+			setVMArgs(vm2.getVMArgs());
+	        fRubyVersion = vm2.getRubyVersion();			
+		} else {
+			setVMArguments(realVM.getVMArguments());
+			fRubyVersion = null;
+		}
+	}
+	
+	/**
+	 * If no corresponding 'real' VM exists, create one and populate it from this standin instance. 
+	 * If a corresponding VM exists, update its attributes from this standin instance.
+	 * 
+	 * @return IVMInstall the 'real' corresponding to this standin VM
+	 */
+	public IVMInstall convertToRealVM() {
+		IVMInstallType vmType= getVMInstallType();
+		IVMInstall realVM= vmType.findVMInstall(getId());
+		boolean notify = true;
+		
+		if (realVM == null) {
+			realVM= vmType.createVMInstall(getId());
+			notify = false;
+		}
+		// do not notify of property changes on new VMs
+		if (realVM instanceof AbstractVMInstall) {
+			 ((AbstractVMInstall)realVM).setNotify(notify);
+		}
+		realVM.setName(getName());
+		realVM.setInstallLocation(getInstallLocation());
+		realVM.setLibraryLocations(getLibraryLocations());
+		if (realVM instanceof IVMInstall2) {
+			IVMInstall2 vm2 = (IVMInstall2) realVM;
+			vm2.setVMArgs(getVMArgs());
+		} else {
+			realVM.setVMArguments(getVMArguments());
+		}
+		
+		if (realVM instanceof AbstractVMInstall) {
+			 ((AbstractVMInstall)realVM).setNotify(true);
+		}		
+		if (!notify) {
+			RubyRuntime.fireVMAdded(realVM);
+		}
+		return realVM;
+	}
+		
+    /* (non-Javadoc)
+     * @see org.rubypeople.rdt.launching.IVMInstall#getRubyVersion()
+     */
+    public String getRubyVersion() {
+        return fRubyVersion;
+    }
+
+	public Process exec(List commandLine, File workingDirectory)
+			throws CoreException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	public String getCommand() throws IllegalCommandException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+}


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