[431060][local] RSE performance over local network drives are suboptimal

rse/plugins/org.eclipse.rse.services.local/src/org/eclipse/rse/internal/services/local/files/LocalFileService.java

@@ -55,7 +55,7 @@
  * Samuel Wu		(IBM)		 - [395981] Local file encoding is not handled properly 
  * David McKnight   (IBM)        - [422508] Unable to map A:\ and B:\ as selectable drives in RSE View
  * David McKnight   (IBM)        - [420798] Slow performances in RDz 9.0 with opening 7000 files located on a network driver.
- * David McKnight   (IBM)        - [427306] A couple cases where RSE doesn't indicate lack of space for upload
+ * David McKnight   (IBM)        - [431060][local] RSE performance over local network drives are suboptimal
  *******************************************************************************/
 
 package org.eclipse.rse.internal.services.local.files;

rse/plugins/org.eclipse.rse.services.local/src/org/eclipse/rse/internal/services/local/files/LocalHostFile.java

@@ -47,6 +47,7 @@ public class LocalHostFile implements IHostFile, IHostFilePermissionsContainer
 	private boolean _isArchive = false;
 	private IHostFilePermissions _permissions = null;
 	private FileInfo _info = null;
+	private boolean _needsQuery = false;
 	
 	public LocalHostFile(File file)
 	{
@@ -75,6 +76,7 @@ public class LocalHostFile implements IHostFile, IHostFilePermissionsContainer
 				_info.setName(new String(name.toCharArray()));
 			}
 		}
+		_needsQuery = false;
 	}
 	
 
@@ -162,8 +164,10 @@ public class LocalHostFile implements IHostFile, IHostFilePermissionsContainer
 
 	public boolean exists()
 	{
-		if (_exists == null || needsQuery()){
+		boolean needsQuery = needsQuery();
+		if (_exists == null || needsQuery){
 			if (_info != null){
+				if (needsQuery) fetchInfo();
 				_exists = new Boolean(_info.exists());
 			}
 			else {
@@ -181,6 +185,7 @@ public class LocalHostFile implements IHostFile, IHostFilePermissionsContainer
 	public long getSize()
 	{
 		if (_info != null){
+			if (needsQuery()) fetchInfo();
 			return _info.getLength();
 		}
 		return _file.length();
@@ -189,6 +194,7 @@ public class LocalHostFile implements IHostFile, IHostFilePermissionsContainer
 	public long getModifiedDate()
 	{
 		if (_info != null){
+			if (needsQuery()) fetchInfo();
 			return _info.getLastModified();
 		}
 		return _file.lastModified();
@@ -198,6 +204,7 @@ public class LocalHostFile implements IHostFile, IHostFilePermissionsContainer
 	{
 		_file = new File(newAbsolutePath);
 		_isArchive = ArchiveHandlerManager.getInstance().isArchive(_file);
+		fetchInfo();
 	}
 
 	public boolean isArchive() 
@@ -207,6 +214,7 @@ public class LocalHostFile implements IHostFile, IHostFilePermissionsContainer
 
 	public boolean canRead() {
 		if (_info != null){
+			if (needsQuery()) fetchInfo();
 			return _info.getAttribute(EFS.ATTRIBUTE_OWNER_READ);
 		}
 		return _file.canRead();
@@ -214,6 +222,11 @@ public class LocalHostFile implements IHostFile, IHostFilePermissionsContainer
 
 	public boolean canWrite() {
 		if (_info != null){
+			if (needsQuery()) fetchInfo();
+			boolean readOnly = _info.getAttribute(EFS.ATTRIBUTE_READ_ONLY);
+			if (readOnly){
+				return false;
+			}
 			return _info.getAttribute(EFS.ATTRIBUTE_OWNER_WRITE);
 		}
 		return _file.canWrite();
@@ -228,6 +241,9 @@ public class LocalHostFile implements IHostFile, IHostFilePermissionsContainer
 	}
 
 	private boolean needsQuery(){
+		if (LocalFileNativesManager.isUsingNatives() && _needsQuery){
+			return true;
+		}
 		long t = System.currentTimeMillis();
 		if (_lastQueryTime == 0 || (t - _lastQueryTime) > 5000){
 			_lastQueryTime = t;
@@ -235,4 +251,8 @@ public class LocalHostFile implements IHostFile, IHostFilePermissionsContainer
 		}
 		return false;
 	}
+	
+	public void setNeedsQuery(boolean flag){
+		_needsQuery = true;
+	}
 }

rse/plugins/org.eclipse.rse.subsystems.files.local/src/org/eclipse/rse/internal/subsystems/files/local/model/LocalFile.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2006, 2008 IBM Corporation and others.
+ * Copyright (c) 2006, 2014 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
@@ -14,6 +14,7 @@
  * Contributors:
  * Martin Oberhuber (Wind River) - [187571] Classification is empty for local directories
  * Martin Oberhuber (Wind River) - [234726] Update IRemoteFile Javadocs
+ * David McKnight   (IBM)        -  [431060][local] RSE performance over local network drives are suboptimal
  *******************************************************************************/
 
 package org.eclipse.rse.internal.subsystems.files.local.model;
@@ -74,7 +75,9 @@ public class LocalFile extends AbstractRemoteFile
 		return _classification;
 	}
 
-
+	public void markStale(boolean isStale) {
-
+		super.markStale(isStale);
+		_localHostFile.setNeedsQuery(isStale);
+	}
 
 }