make certain parameters configurable

Author: infeo

src/main/java/org/cryptomator/cloudaccess/CloudAccess.java

@@ -24,6 +24,7 @@
 import java.nio.file.Path;
 import java.security.NoSuchAlgorithmException;
 import java.security.SecureRandom;
+import java.time.Duration;
 
 public class CloudAccess {
 
@@ -59,7 +60,7 @@ public static CloudProvider vaultFormat8GCMCloudAccess(CloudProvider cloudProvid
 
 			VaultFormat8ProviderDecorator provider = new VaultFormat8ProviderDecorator(cloudProvider, pathToVault.resolve("d"), cryptor);
 			provider.initialize();
-			return new MetadataCachingProviderDecorator(provider);
+			return new MetadataCachingProviderDecorator(provider, Duration.ofSeconds(Long.getLong("org.cryptomator.cloudaccess.cryptometadatatimeout", 10L)));
 		} catch (NoSuchAlgorithmException e) {
 			throw new IllegalStateException("JVM doesn't supply a CSPRNG", e);
 		} catch (InterruptedException e) {

src/main/java/org/cryptomator/cloudaccess/MetadataCachingProviderDecorator.java

@@ -19,12 +19,14 @@
 
 public class MetadataCachingProviderDecorator implements CloudProvider {
 
+	private final static int DEFAULT_CACHE_TIMEOUT_SECONDS = 10;
+
 	final Cache<CloudPath, Optional<CloudItemMetadata>> itemMetadataCache;
 	final Cache<CloudPath, Optional<Quota>> quotaCache;
 	private final CloudProvider delegate;
 
 	public MetadataCachingProviderDecorator(CloudProvider delegate) {
-		this(delegate, Duration.ofSeconds(10));
+		this(delegate, Duration.ofSeconds(DEFAULT_CACHE_TIMEOUT_SECONDS));
 	}
 
 	public MetadataCachingProviderDecorator(CloudProvider delegate, Duration cacheEntryMaxAge) {

src/main/java/org/cryptomator/cloudaccess/api/NetworkTimeout.java

@@ -0,0 +1,56 @@
+package org.cryptomator.cloudaccess.api;
+
+import java.util.concurrent.TimeUnit;
+
+public class NetworkTimeouts {
+
+	private final Timeout connection;
+	private final Timeout read;
+	private final Timeout write;
+
+	NetworkTimeouts() {
+		this.connection = new Timeout(Long.getLong("org.cryptomator.cloudaccess.timeout.connection", 30L), TimeUnit.SECONDS);
+		this.read = new Timeout(Long.getLong("org.cryptomator.cloudaccess.timeout.read", 30L), TimeUnit.SECONDS);
+		this.write = new Timeout(Long.getLong("org.cryptomator.cloudaccess.timeout.write", 30L), TimeUnit.SECONDS);
+	}
+
+	public static NetworkTimeouts createBySystemPropertiesOrDefaults() {
+		return new NetworkTimeouts();
+	}
+
+	public Timeout connection() {
+		return connection;
+	}
+
+	public Timeout read() {
+		return read;
+	}
+
+	public Timeout write() {
+		return write;
+	}
+
+	public static class Timeout {
+
+		private final long timeout;
+		private final TimeUnit unit;
+
+		Timeout(final long timeout, final TimeUnit unit) {
+			this.timeout = timeout;
+			this.unit = unit;
+		}
+
+		public long getTimeout() {
+			return timeout;
+		}
+
+		public TimeUnit getUnit() {
+			return unit;
+		}
+
+		public long asMilliseconds() {
+			return unit.toMillis(timeout);
+		}
+
+	}
+}

src/main/java/org/cryptomator/cloudaccess/api/NetworkTimeouts.java

@@ -11,7 +11,7 @@
 import okhttp3.OkHttpClient;
 import okhttp3.Request;
 import okhttp3.Response;
-import org.cryptomator.cloudaccess.api.NetworkTimeout;
+import org.cryptomator.cloudaccess.api.NetworkTimeouts;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -32,12 +32,12 @@ class WebDavCompatibleHttpClient {
 
 	private static OkHttpClient httpClientFor(final WebDavCredential webDavCredential) {
 		final Map<String, CachingAuthenticator> authCache = new ConcurrentHashMap<>();
-
+		var networkTimeouts = NetworkTimeouts.createBySystemPropertiesOrDefaults();
 		final var builder = new OkHttpClient()
 				.newBuilder()
-				.connectTimeout(NetworkTimeout.CONNECTION.getTimeout(), NetworkTimeout.CONNECTION.getUnit())
-				.readTimeout(NetworkTimeout.READ.getTimeout(), NetworkTimeout.READ.getUnit())
-				.writeTimeout(NetworkTimeout.WRITE.getTimeout(), NetworkTimeout.WRITE.getUnit())
+				.connectTimeout(networkTimeouts.connection().getTimeout(), networkTimeouts.connection().getUnit())
+				.readTimeout(networkTimeouts.read().getTimeout(), networkTimeouts.read().getUnit())
+				.writeTimeout(networkTimeouts.write().getTimeout(), networkTimeouts.write().getUnit())
 				.followRedirects(false)
 				.addInterceptor(new HttpLoggingInterceptor(LOG::trace))
 				.authenticator(httpAuthenticator(webDavCredential.getUsername(), webDavCredential.getPassword(), authCache))