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/*
* Copyright 2000-2009 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 com.intellij.openapi.vfs.impl.http;
import com.intellij.openapi.Disposable;
import com.intellij.openapi.util.Disposer;
import com.intellij.openapi.util.Pair;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.openapi.vfs.ex.http.HttpVirtualFileListener;
import com.intellij.util.EventDispatcher;
import com.intellij.util.Url;
import gnu.trove.THashMap;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/**
* @author nik
*/
public class RemoteFileManagerImpl extends RemoteFileManager implements Disposable {
private final LocalFileStorage myStorage;
private final Map<Pair<Boolean, Url>, VirtualFileImpl> myRemoteFiles = new THashMap<Pair<Boolean, Url>, VirtualFileImpl>();
private final EventDispatcher<HttpVirtualFileListener> myDispatcher = EventDispatcher.create(HttpVirtualFileListener.class);
private final List<RemoteContentProvider> myProviders = new ArrayList<RemoteContentProvider>();
private final DefaultRemoteContentProvider myDefaultRemoteContentProvider;
public RemoteFileManagerImpl() {
myStorage = new LocalFileStorage();
myDefaultRemoteContentProvider = new DefaultRemoteContentProvider();
}
@NotNull
public RemoteContentProvider findContentProvider(final @NotNull Url url) {
for (RemoteContentProvider provider : myProviders) {
if (provider.canProvideContent(url)) {
return provider;
}
}
return myDefaultRemoteContentProvider;
}
public synchronized VirtualFileImpl getOrCreateFile(@Nullable VirtualFileImpl parent, @NotNull Url url, @NotNull String path, final boolean directory) {
Pair<Boolean, Url> key = Pair.create(directory, url);
VirtualFileImpl file = myRemoteFiles.get(key);
if (file == null) {
if (directory) {
file = new VirtualFileImpl(getHttpFileSystem(url), parent, path, null);
}
else {
RemoteFileInfoImpl fileInfo = new RemoteFileInfoImpl(url, this);
file = new VirtualFileImpl(getHttpFileSystem(url), parent, path, fileInfo);
fileInfo.addDownloadingListener(new MyDownloadingListener(file));
}
myRemoteFiles.put(key, file);
}
return file;
}
private static HttpFileSystemBase getHttpFileSystem(@NotNull Url url) {
return HttpsFileSystem.HTTPS_PROTOCOL.equals(url.getScheme())
? HttpsFileSystem.getHttpsInstance() : HttpFileSystemImpl.getInstanceImpl();
}
@Override
public void addRemoteContentProvider(@NotNull final RemoteContentProvider provider, @NotNull Disposable parentDisposable) {
addRemoteContentProvider(provider);
Disposer.register(parentDisposable, new Disposable() {
@Override
public void dispose() {
removeRemoteContentProvider(provider);
}
});
}
@Override
public void addRemoteContentProvider(@NotNull RemoteContentProvider provider) {
myProviders.add(provider);
}
@Override
public void removeRemoteContentProvider(@NotNull RemoteContentProvider provider) {
myProviders.remove(provider);
}
@Override
public void addFileListener(@NotNull final HttpVirtualFileListener listener) {
myDispatcher.addListener(listener);
}
@Override
public void addFileListener(@NotNull final HttpVirtualFileListener listener, @NotNull final Disposable parentDisposable) {
addFileListener(listener);
Disposer.register(parentDisposable, new Disposable() {
@Override
public void dispose() {
removeFileListener(listener);
}
});
}
@Override
public void removeFileListener(@NotNull final HttpVirtualFileListener listener) {
myDispatcher.removeListener(listener);
}
public void fireFileDownloaded(@NotNull VirtualFile file) {
myDispatcher.getMulticaster().fileDownloaded(file);
}
public LocalFileStorage getStorage() {
return myStorage;
}
@Override
public void dispose() {
myStorage.deleteDownloadedFiles();
}
private class MyDownloadingListener extends FileDownloadingAdapter {
private final VirtualFileImpl myFile;
public MyDownloadingListener(final VirtualFileImpl file) {
myFile = file;
}
@Override
public void fileDownloaded(final VirtualFile localFile) {
fireFileDownloaded(myFile);
}
}
}
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