import com.subgraph.orchid.directory.downloader.DirectoryDownloaderImpl; //导入依赖的package包/类
public CircuitManagerImpl(TorConfig config, DirectoryDownloaderImpl directoryDownloader, Directory directory, ConnectionCache connectionCache, TorInitializationTracker initializationTracker) {
	this.config = config;
	this.directory = directory;
	this.connectionCache = connectionCache;
	this.pathChooser = CircuitPathChooser.create(config, directory);
	if(config.getUseEntryGuards() || config.getUseBridges()) {
		this.pathChooser.enableEntryGuards(new EntryGuards(config, connectionCache, directoryDownloader, directory));
	}
	this.pendingExitStreams = new PendingExitStreams(config);
	this.circuitCreationTask = new CircuitCreationTask(config, directory, connectionCache, pathChooser, this, initializationTracker);
	this.activeCircuits = new HashSet<CircuitImpl>();
	this.cleanInternalCircuits = new LinkedList<InternalCircuit>();
	this.random = new TorRandom();
	
	this.initializationTracker = initializationTracker;
	this.hiddenServiceManager = new HiddenServiceManager(config, directory, this);
	
	directoryDownloader.setCircuitManager(this);
}
 

import com.subgraph.orchid.directory.downloader.DirectoryDownloaderImpl; //导入依赖的package包/类
/**
 * Create and return a new <code>CircuitManager</code> instance.
 * 
 * @return A new <code>CircuitManager</code> instance.
 * @see CircuitManager
 */
static public CircuitManager createCircuitManager(TorConfig config, DirectoryDownloaderImpl directoryDownloader, Directory directory, ConnectionCache connectionCache, TorInitializationTracker tracker) {
	return new CircuitManagerImpl(config, directoryDownloader, directory, connectionCache, tracker);
}
 

import com.subgraph.orchid.directory.downloader.DirectoryDownloaderImpl; //导入依赖的package包/类
/**
 * Create and return a new <code>DirectoryDownloader</code> instance.
 *
 * @param logManager This is a required dependency.  You must create a <code>LogManager</code>
 *                   before calling this method to create a <code>DirectoryDownloader</code>.

 * @param directory This is a required dependency.  You must create a <code>Directory</code>
 *                  before calling this method to create a <code>DirectoryDownloader</code>
 *                  
 * @param circuitManager This is a required dependency.  You must create a <code>CircuitManager</code>
 *                       before calling this method to create a <code>DirectoryDownloader</code>.
 *                       
 * @return A new <code>DirectoryDownloader</code> instance.
 * @see DirectoryDownloaderImpl
 */
static public DirectoryDownloaderImpl createDirectoryDownloader(TorConfig config, TorInitializationTracker initializationTracker) {
	return new DirectoryDownloaderImpl(config, initializationTracker);
}