/*
* HistoryAsyncDataProvider.java
*
* Copyright (C) 2009-12 by RStudio, Inc.
*
* Unless you have received this program directly from RStudio pursuant
* to the terms of a commercial license agreement with RStudio, then
* this program is licensed to you under the terms of version 3 of the
* GNU Affero General Public License. This program is distributed WITHOUT
* ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING THOSE OF NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Please refer to the
* AGPL (http://www.gnu.org/licenses/agpl-3.0.txt) for more details.
*
*/
package org.rstudio.studio.client.workbench.views.vcs.dialog;
import com.google.gwt.user.cellview.client.AbstractHasData;
import com.google.gwt.user.client.ui.HasValue;
import com.google.gwt.view.client.AsyncDataProvider;
import com.google.gwt.view.client.HasData;
import com.google.gwt.view.client.Range;
import com.google.inject.Inject;
import org.rstudio.core.client.Debug;
import org.rstudio.core.client.files.FileSystemItem;
import org.rstudio.core.client.jsonrpc.RpcObjectList;
import org.rstudio.studio.client.common.SimpleRequestCallback;
import org.rstudio.studio.client.common.Value;
import org.rstudio.studio.client.server.ServerError;
import org.rstudio.studio.client.server.ServerRequestCallback;
public abstract class HistoryAsyncDataProvider extends AsyncDataProvider<CommitInfo>
{
@Inject
public HistoryAsyncDataProvider()
{
rev_ = "";
searchText_ = new Value<String>("");
fileFilter_ = new Value<FileSystemItem>(null);
}
public void setHistoryStrategy(HistoryStrategy strategy)
{
strategy_ = strategy;
}
@Override
public void addDataDisplay(HasData<CommitInfo> display)
{
super.addDataDisplay(display);
}
public void setSearchText(HasValue<String> searchText)
{
searchText_ = searchText;
}
public void setFileFilter(HasValue<FileSystemItem> fileFilter)
{
fileFilter_ = fileFilter;
}
public void setRev(String rev)
{
rev_ = rev;
}
public void refreshCount()
{
getHistoryCount(
rev_,
fileFilter_.getValue(),
searchText_.getValue(),
new ServerRequestCallback<CommitCount>()
{
@Override
public void onResponseReceived(CommitCount response)
{
updateRowCount(response.getCount(), true);
}
@Override
public void onError(ServerError error)
{
Debug.logError(error);
}
});
}
@Override
public void onRangeChanged(final HasData<CommitInfo> display)
{
final Range rng = display.getVisibleRange();
final int start = rng.getStart();
final int length = rng.getLength();
if (length == 0)
return;
getHistory(
rev_, fileFilter_.getValue(),
start, length, searchText_.getValue(),
new SimpleRequestCallback<RpcObjectList<CommitInfo>>("Error Fetching History")
{
@Override
public void onResponseReceived(RpcObjectList<CommitInfo> response)
{
super.onResponseReceived(response);
if (response.length() < length)
updateRowCount(start + response.length(), true);
updateRowData(start, response.toArrayList());
}
@Override
public void onError(ServerError error)
{
if (display instanceof AbstractHasData)
{
display.setVisibleRangeAndClearData(new Range(start, 0), true);
}
if (strategy_.getShowHistoryErrors())
super.onError(error);
else
Debug.logError(error);
}
});
}
protected abstract void getHistoryCount(
String revision,
FileSystemItem fileFilter,
String searchText,
ServerRequestCallback<CommitCount> requestCallback);
protected abstract void getHistory(
String revision,
FileSystemItem fileFilter,
int skip,
int maxEntries,
String searchText,
ServerRequestCallback<RpcObjectList<CommitInfo>> requestCallback);
private String rev_;
private HasValue<String> searchText_;
private HasValue<FileSystemItem> fileFilter_;
private HistoryStrategy strategy_;
}