Various updates

src/distMaker/DistMakerEngine.java

@@ -23,9 +23,9 @@ import java.util.Map;
 import javax.swing.JFrame;
 import javax.swing.SwingUtilities;
 
-import distMaker.apple.PropFileUtil;
 import distMaker.gui.PickReleasePanel;
 import distMaker.node.Node;
+import distMaker.platform.AppleFileUtil;
 
 public class DistMakerEngine
 {
@@ -498,7 +498,7 @@ public class DistMakerEngine
 			errMsg = null;
 			if (pFile.setWritable(true) == false)
 				errMsg = "Failure. No writable permmisions for file: " + pFile;
-			else if (PropFileUtil.updateVersion(pFile, aRelease.getVersion()) == false)
+			else if (AppleFileUtil.updateVersion(pFile, aRelease.getVersion()) == false)
 				errMsg = "Failure. Failed to update file: " + pFile;
 
 			if (errMsg != null)

src/distMaker/DistUtils.java

@@ -308,6 +308,13 @@ public class DistUtils
 	 */
 	public static boolean isFullyWriteable(File aPath)
 	{
+		// There is no known way to change, the write bit to true, in windows,
+		// so by default, assume the path is writable. This method is totally unreliable on 
+		// the Windows platform (Gives bogus results for files on CDs). 
+		// TODO: See if File.canWrite(), returns the proper value on Windows
+		if (System.getProperty("os.name").startsWith("Windows") == true)
+			return true;
+		
 		if (aPath.isDirectory() == false)
 			throw new RuntimeException("Specified path is not a folder: " + aPath);
 

src/distMaker/platform/AppleFileUtil.java

@@ -1,4 +1,4 @@
-package distMaker.apple;
+package distMaker.platform;
 
 import glum.io.IoUtil;
 
@@ -16,8 +16,90 @@ import org.w3c.dom.*;
 /**
  * Utility class which contains a set of methods to interact with an Apple Info.plist file.
  */
-public class PropFileUtil
+public class AppleFileUtil
 {
+	/**
+	 * Utility method to update the specified max memory (-Xmx) value in the plist file (aFile) to the specified
+	 * maxMemVal.
+	 * <P>
+	 * Note this method is very brittle, and assumes that the value occurs within <string> tags. The assumption is that
+	 * the occurrence of the string, -Xmx, will be once and refer to the max heap memory.
+	 */
+	public static boolean updateMaxMem(File aFile, long numBytes)
+	{
+		DocumentBuilderFactory dbf;
+		Document dom;
+		Element doc;
+		String evalStr, memStr, oldStr;
+		String[] evalArr;
+
+		// Determine the memStr to use
+		if (numBytes % (1024 * 1024 * 1024) == 0)
+			memStr = "-Xmx" + (numBytes / (1024 * 1024 * 1024)) + "G";
+		else
+			memStr = "-Xmx" + (numBytes / (1024 * 1024)) + "M";
+
+		// Make an instance of the DocumentBuilderFactory
+		dbf = DocumentBuilderFactory.newInstance();
+		try
+		{
+			// use the factory to take an instance of the document builder
+			DocumentBuilder db = dbf.newDocumentBuilder();
+
+			// Parse using the builder to get the DOM mapping of the XML file
+			dom = db.parse(aFile);
+			doc = dom.getDocumentElement();
+
+			NodeList nodeList;
+			Node keyNode;
+
+			nodeList = doc.getElementsByTagName("string");
+			for (int c1 = 0; c1 < nodeList.getLength(); c1++)
+			{
+				keyNode = nodeList.item(c1).getFirstChild();
+				if (keyNode != null)
+				{
+					evalStr = keyNode.getNodeValue();
+					if (evalStr != null && evalStr.contains("-Xmx") == true)
+					{
+						evalArr = evalStr.split(" ");
+						for (int c2 = 0; c2 < evalArr.length; c2++)
+						{
+							oldStr = evalArr[c2];
+							if (oldStr.startsWith("-Xmx") == true)
+								evalArr[c2] = memStr;
+						}
+
+						System.out.println("Updating contents of file: " + aFile);
+						System.out.println("  Old Version: " + evalStr);
+
+						// Reconstitute the new evalStr
+						evalStr = "";
+						for (String aStr : evalArr)
+							evalStr += " " + aStr;
+						if (evalStr.length() > 0)
+							evalStr = evalStr.substring(1);
+
+						System.out.println("  New Version: " + evalStr);
+						keyNode.setNodeValue(evalStr);
+						break;
+					}
+				}
+			}
+
+			// Update the file with the changed document
+			writeDoc(aFile, dom);
+
+			return true;
+		}
+		catch (Exception aExp)
+		{
+			aExp.printStackTrace();
+		}
+
+		return false;
+	}
+
 	/**
 	 * Utility method to update the specified version in the plist file (aFile) to the new version.
 	 * <P>