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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 javax.websocket;
import java.util.Collections;
import java.util.List;
import java.util.Map;
public interface ClientEndpointConfig extends EndpointConfig {
List<String> getPreferredSubprotocols();
List<Extension> getExtensions();
public Configurator getConfigurator();
public final class Builder {
private static final Configurator DEFAULT_CONFIGURATOR =
new Configurator() {};
public static Builder create() {
return new Builder();
}
private Builder() {
// Hide default constructor
}
private Configurator configurator = DEFAULT_CONFIGURATOR;
private List<String> preferredSubprotocols = Collections.emptyList();
private List<Extension> extensions = Collections.emptyList();
private List<Class<? extends Encoder>> encoders =
Collections.emptyList();
private List<Class<? extends Decoder>> decoders =
Collections.emptyList();
public ClientEndpointConfig build() {
return new DefaultClientEndpointConfig(preferredSubprotocols,
extensions, encoders, decoders, configurator);
}
public Builder configurator(Configurator configurator) {
if (configurator == null) {
this.configurator = DEFAULT_CONFIGURATOR;
} else {
this.configurator = configurator;
}
return this;
}
public Builder preferredSubprotocols(
List<String> preferredSubprotocols) {
if (preferredSubprotocols == null ||
preferredSubprotocols.size() == 0) {
this.preferredSubprotocols = Collections.emptyList();
} else {
this.preferredSubprotocols =
Collections.unmodifiableList(preferredSubprotocols);
}
return this;
}
public Builder extensions(
List<Extension> extensions) {
if (extensions == null || extensions.size() == 0) {
this.extensions = Collections.emptyList();
} else {
this.extensions = Collections.unmodifiableList(extensions);
}
return this;
}
public Builder encoders(List<Class<? extends Encoder>> encoders) {
if (encoders == null || encoders.size() == 0) {
this.encoders = Collections.emptyList();
} else {
this.encoders = Collections.unmodifiableList(encoders);
}
return this;
}
public Builder decoders(List<Class<? extends Decoder>> decoders) {
if (decoders == null || decoders.size() == 0) {
this.decoders = Collections.emptyList();
} else {
this.decoders = Collections.unmodifiableList(decoders);
}
return this;
}
}
public class Configurator {
/**
* Provides the client with a mechanism to inspect and/or modify the headers
* that are sent to the server to start the WebSocket handshake.
*
* @param headers The HTTP headers
*/
public void beforeRequest(Map<String, List<String>> headers) {
// NO-OP
}
/**
* Provides the client with a mechanism to inspect the handshake response
* that is returned from the server.
*
* @param handshakeResponse The response
*/
public void afterResponse(HandshakeResponse handshakeResponse) {
// NO-OP
}
}
}
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