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Code Issues Wiki Activity

[291738] [efs] repeated queries to RSEFileStoreImpl.fetchInfo() in short time-span should be reduced

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This commit is contained in:
David McKnight 2009-10-08 14:06:25 +00:00
parent 5fb4c2106f
commit 02446923b9
3 changed files with 19 additions and 8 deletions
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6
rse/plugins/org.eclipse.rse.efs/src/org/eclipse/rse/internal/efs/RSEFileStore.java
View file

@ -22,6 +22,7 @@
* Kevin Doyle (IBM) - [210673] [efs][nls] Externalize Strings in RSEFileStore and RSEFileStoreImpl
* Timur Shipilov (Xored) - [224538] RSEFileStore.getParent() returns null for element which is not root of filesystem
* David McKnight (IBM) - [287185] EFS provider should interpret the URL host component as RSE connection name rather than a hostname
* David McKnight (IBM) - [291738] [efs] repeated queries to RSEFileStoreImpl.fetchInfo() in short time-span should be reduced
********************************************************************************/
package org.eclipse.rse.internal.efs;
@ -243,14 +244,13 @@ public class RSEFileStore extends FileStore
Bundle[] bundles = ctx.getBundles();
for (int i=0; i<bundles.length; i++) {
if ("org.eclipse.core.resources".equals(bundles[i].getSymbolicName())) { //$NON-NLS-1$
if (resourcesBundle==null || bundles[i].getState()==Bundle.ACTIVE) {
if (resourcesBundle==null && bundles[i].getState()==Bundle.ACTIVE) {
resourcesBundle = bundles[i];
}
//System.out.println(resourcesBundle);
}
}
}
return resourcesBundle.getState()==Bundle.ACTIVE;
return resourcesBundle != null && resourcesBundle.getState()==Bundle.ACTIVE;
}
/*

12
rse/plugins/org.eclipse.rse.efs/src/org/eclipse/rse/internal/efs/RSEFileStoreImpl.java
View file

@ -32,6 +32,7 @@
* Martin Oberhuber (Wind River) - [220300] EFS Size Property not properly updated after saving
* Martin Oberhuber (Wind River) - [234026] Clarify IFileService#createFolder() Javadocs
* David McKnight (IBM) - [287185] EFS provider should interpret the URL host component as RSE connection name rather than a hostname
* David McKnight (IBM) - [291738] [efs] repeated queries to RSEFileStoreImpl.fetchInfo() in short time-span should be reduced
********************************************************************************/
package org.eclipse.rse.internal.efs;
@ -79,6 +80,7 @@ import org.eclipse.rse.ui.RSEUIPlugin;
public class RSEFileStoreImpl extends FileStore
{
private RSEFileStore _store;
private long _lastFetch = 0;
//cached IRemoteFile object: an Object to avoid early class loading
private transient volatile IRemoteFile _remoteFile;
@ -514,8 +516,14 @@ public class RSEFileStoreImpl extends FileStore
* @see org.eclipse.core.filesystem.IFileStore#fetchInfo(int, org.eclipse.core.runtime.IProgressMonitor)
*/
public IFileInfo fetchInfo(int options, IProgressMonitor monitor) throws CoreException {
// clear cache in order to query latest info
cacheRemoteFile(null);
long curTime = System.currentTimeMillis();
// don't clear cache when there are several successive queries in a short time-span
if (_lastFetch == 0 || ((curTime - _lastFetch) < 1000)){
// clear cache in order to query latest info
cacheRemoteFile(null);
_lastFetch = curTime;
}
// connect if needed. Will throw exception if not successful.
IRemoteFile remoteFile = getRemoteFileObject(monitor, false);
String classification = (remoteFile==null) ? null : remoteFile.getClassification();

9
rse/plugins/org.eclipse.rse.efs/src/org/eclipse/rse/internal/efs/RemoteEditorManager.java
View file

@ -11,6 +11,7 @@
* Contributors:
* Mike Kucera (IBM) - [241316] [efs] Cannot restore editors for RSE/EFS-backed resources
* David McKnight (IBM) - [241316] [efs] Cannot restore editors for RSE/EFS-backed resources
* David McKnight (IBM) - [291738] [efs] repeated queries to RSEFileStoreImpl.fetchInfo() in short time-span should be reduced
********************************************************************************/
package org.eclipse.rse.internal.efs;
@ -204,9 +205,11 @@ public class RemoteEditorManager implements ISaveParticipant, IResourceChangeLis
if (input instanceof FileEditorInput){
IFile file = ((FileEditorInput)input).getFile();
URI uri = file.getLocationURI();
if ("rse".equals(uri.getScheme())) { //$NON-NLS-1$
IEditorPart editor = editorReference.getEditor(false);
callback.apply(page, editor, file);
if (uri != null && uri.getScheme() != null){
if ("rse".equals(uri.getScheme())) { //$NON-NLS-1$
IEditorPart editor = editorReference.getEditor(false);
callback.apply(page, editor, file);
}
}
}
} catch (PartInitException e){