import com.subgraph.orchid.ConsensusDocument.RequiredCertificate; //导入依赖的package包/类
public DirectoryImpl(TorConfig config, DirectoryStore customDirectoryStore) {
	store = (customDirectoryStore == null) ? (new DirectoryStoreImpl(config)) : (customDirectoryStore);
	this.config = config;
	stateFile = new StateFile(store, this);
	microdescriptorCache = createMicrodescriptorCache(store);
	basicDescriptorCache = createBasicDescriptorCache(store);	
	routersByIdentity = new HashMap<HexDigest, RouterImpl>();
	routersByNickname = new HashMap<String, RouterImpl>();
	directoryCaches = new RandomSet<RouterImpl>();
	requiredCertificates = new HashSet<ConsensusDocument.RequiredCertificate>();
	consensusChangedManager = new EventManager();
	random = new TorRandom();
}
 

import com.subgraph.orchid.ConsensusDocument.RequiredCertificate; //导入依赖的package包/类
private boolean removeRequiredCertificate(KeyCertificate certificate) {
	final Iterator<RequiredCertificate> it = requiredCertificates.iterator();
	while(it.hasNext()) {
		RequiredCertificate r = it.next();
		if(r.getSigningKey().equals(certificate.getAuthoritySigningKey().getFingerprint())) {
			it.remove();
			return true;
		}
	}
	return false;
}
 

import com.subgraph.orchid.ConsensusDocument.RequiredCertificate; //导入依赖的package包/类
private String getRequiredCertificatesRequestString() {
	final StringBuilder sb = new StringBuilder();
	for(RequiredCertificate rc: requiredCertificates) {
		if(sb.length() > 0) {
			sb.append("+");
		}
		sb.append(rc.getAuthorityIdentity().toString());
		sb.append("-");
		sb.append(rc.getSigningKey().toString());
	}
	return sb.toString();
}
 

import com.subgraph.orchid.ConsensusDocument.RequiredCertificate; //导入依赖的package包/类
public Set<ConsensusDocument.RequiredCertificate> getRequiredCertificates() {
	return new HashSet<ConsensusDocument.RequiredCertificate>(requiredCertificates);
}
 

import com.subgraph.orchid.ConsensusDocument.RequiredCertificate; //导入依赖的package包/类
public List<KeyCertificate> downloadKeyCertificates(Set<RequiredCertificate> required) throws DirectoryRequestFailedException {
	return downloadKeyCertificates(required, openCircuit());
}
 

import com.subgraph.orchid.ConsensusDocument.RequiredCertificate; //导入依赖的package包/类
public CertificateFetcher(Set<RequiredCertificate> requiredCertificates) {
	this.requiredCertificates = requiredCertificates;
}
 

import com.subgraph.orchid.ConsensusDocument.RequiredCertificate; //导入依赖的package包/类
public List<KeyCertificate> downloadKeyCertificates(Set<RequiredCertificate> required) throws DirectoryRequestFailedException {
	return fetchDocuments(new CertificateFetcher(required), CircuitManager.DIRECTORY_PURPOSE_CERTIFICATES);
}