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/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.idea.svn.dialogs.browserCache;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.application.ModalityState;
import com.intellij.openapi.progress.EmptyProgressIndicator;
import com.intellij.openapi.progress.ProgressManager;
import com.intellij.openapi.util.Pair;
import com.intellij.openapi.vcs.VcsException;
import com.intellij.util.containers.ContainerUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.idea.svn.SvnVcs;
import org.jetbrains.idea.svn.api.Depth;
import org.jetbrains.idea.svn.auth.SvnAuthenticationProvider;
import org.jetbrains.idea.svn.browse.DirectoryEntry;
import org.jetbrains.idea.svn.browse.DirectoryEntryConsumer;
import org.jetbrains.idea.svn.dialogs.RepositoryTreeNode;
import org.tmatesoft.svn.core.SVNException;
import org.tmatesoft.svn.core.wc.SVNRevision;
import org.tmatesoft.svn.core.wc2.SvnTarget;
import javax.swing.*;
import java.util.Collection;
import java.util.List;
import java.util.Queue;
import java.util.TreeSet;
class RepositoryLoader extends Loader {
// may be several requests if: several same-level nodes are expanded simultaneosly; or browser can be opening into some expanded state
@NotNull private final Queue<Pair<RepositoryTreeNode, Expander>> myLoadQueue;
private boolean myQueueProcessorActive;
RepositoryLoader(@NotNull SvnRepositoryCache cache) {
super(cache);
myLoadQueue = ContainerUtil.newLinkedList();
myQueueProcessorActive = false;
}
public void load(@NotNull RepositoryTreeNode node, @NotNull Expander afterRefreshExpander) {
ApplicationManager.getApplication().assertIsDispatchThread();
final Pair<RepositoryTreeNode, Expander> data = Pair.create(node, afterRefreshExpander);
if (! myQueueProcessorActive) {
startLoadTask(data);
myQueueProcessorActive = true;
} else {
myLoadQueue.offer(data);
}
}
private void setResults(@NotNull Pair<RepositoryTreeNode, Expander> data, @NotNull List<DirectoryEntry> children) {
myCache.put(data.first.getURL().toString(), children);
refreshNode(data.first, children, data.second);
}
private void setError(@NotNull Pair<RepositoryTreeNode, Expander> data, @NotNull String message) {
myCache.put(data.first.getURL().toString(), message);
refreshNodeError(data.first, message);
}
private void startNext() {
ApplicationManager.getApplication().assertIsDispatchThread();
final Pair<RepositoryTreeNode, Expander> data = myLoadQueue.poll();
if (data == null) {
myQueueProcessorActive = false;
return;
}
if (data.first.isDisposed()) {
// ignore if node is already disposed
startNext();
} else {
startLoadTask(data);
}
}
private void startLoadTask(@NotNull final Pair<RepositoryTreeNode, Expander> data) {
final ModalityState state = ModalityState.current();
ApplicationManager.getApplication().executeOnPooledThread(new Runnable() {
@Override
public void run() {
ProgressManager.getInstance().runProcess(new LoadTask(data), new EmptyProgressIndicator() {
@NotNull
@Override
public ModalityState getModalityState() {
return state;
}
});
}
});
}
@NotNull
protected NodeLoadState getNodeLoadState() {
return NodeLoadState.REFRESHED;
}
private class LoadTask implements Runnable {
@NotNull private final Pair<RepositoryTreeNode, Expander> myData;
private LoadTask(@NotNull Pair<RepositoryTreeNode, Expander> data) {
myData = data;
}
public void run() {
final Collection<DirectoryEntry> entries = new TreeSet<DirectoryEntry>();
final RepositoryTreeNode node = myData.first;
final SvnVcs vcs = node.getVcs();
SvnAuthenticationProvider.forceInteractive();
DirectoryEntryConsumer handler = new DirectoryEntryConsumer() {
@Override
public void consume(final DirectoryEntry entry) throws SVNException {
entries.add(entry);
}
};
try {
SvnTarget target = SvnTarget.fromURL(node.getURL());
vcs.getFactoryFromSettings().createBrowseClient().list(target, SVNRevision.HEAD, Depth.IMMEDIATES, handler);
}
catch (final VcsException e) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
setError(myData, e.getMessage());
startNext();
}
});
return;
} finally {
SvnAuthenticationProvider.clearInteractive();
}
SwingUtilities.invokeLater(new Runnable() {
public void run() {
setResults(myData, ContainerUtil.newArrayList(entries));
startNext();
}
});
}
}
}
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