io.helidon.webclient.grpc.GrpcClientConfig Maven / Gradle / Ivy
/*
* Copyright (c) 2024 Oracle and/or its affiliates.
*
* 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 io.helidon.webclient.grpc;
import java.util.Objects;
import java.util.Optional;
import java.util.function.Consumer;
import java.util.function.Supplier;
import io.helidon.builder.api.Prototype;
import io.helidon.common.Generated;
import io.helidon.common.config.Config;
import io.helidon.webclient.api.HttpClientConfig;
/**
* Configuration of a grpc client.
*
* @see #builder()
* @see #create()
*/
@Generated(value = "io.helidon.builder.codegen.BuilderCodegen", trigger = "io.helidon.webclient.grpc.GrpcClientConfigBlueprint")
public interface GrpcClientConfig extends GrpcClientConfigBlueprint, Prototype.Api, HttpClientConfig {
/**
* Create a new fluent API builder to customize configuration.
*
* @return a new builder
*/
static GrpcClientConfig.Builder builder() {
return new GrpcClientConfig.Builder();
}
/**
* Create a new fluent API builder from an existing instance.
*
* @param instance an existing instance used as a base for the builder
* @return a builder based on an instance
*/
static GrpcClientConfig.Builder builder(GrpcClientConfig instance) {
return GrpcClientConfig.builder().from(instance);
}
/**
* Create a new instance from configuration.
*
* @param config used to configure the new instance
* @return a new instance configured from configuration
*/
static GrpcClientConfig create(Config config) {
return GrpcClientConfig.builder().config(config).buildPrototype();
}
/**
* Create a new instance with default values.
*
* @return a new instance
*/
static GrpcClientConfig create() {
return GrpcClientConfig.builder().buildPrototype();
}
/**
* Fluent API builder base for {@link GrpcClient}.
*
* @param type of the builder extending this abstract builder
* @param type of the prototype interface that would be built by {@link #buildPrototype()}
*/
abstract class BuilderBase, PROTOTYPE extends GrpcClientConfig> extends HttpClientConfig.BuilderBase implements Prototype.ConfiguredBuilder {
private Config config;
private GrpcClientProtocolConfig protocolConfig = GrpcClientProtocolConfig.create();
/**
* Protected to support extensibility.
*/
protected BuilderBase() {
}
/**
* Update this builder from an existing prototype instance. This method disables automatic service discovery.
*
* @param prototype existing prototype to update this builder from
* @return updated builder instance
*/
public BUILDER from(GrpcClientConfig prototype) {
super.from(prototype);
protocolConfig(prototype.protocolConfig());
return self();
}
/**
* Update this builder from an existing prototype builder instance.
*
* @param builder existing builder prototype to update this builder from
* @return updated builder instance
*/
public BUILDER from(GrpcClientConfig.BuilderBase builder) {
super.from(builder);
protocolConfig(builder.protocolConfig());
return self();
}
/**
* Update builder from configuration (node of this type).
* If a value is present in configuration, it would override currently configured values.
*
* @param config configuration instance used to obtain values to update this builder
* @return updated builder instance
*/
@Override
public BUILDER config(Config config) {
Objects.requireNonNull(config);
this.config = config;
super.config(config);
config.get("protocol-config").map(GrpcClientProtocolConfig::create).ifPresent(this::protocolConfig);
return self();
}
/**
* gRPC specific configuration.
*
* @param protocolConfig protocol specific configuration
* @return updated builder instance
* @see #protocolConfig()
*/
public BUILDER protocolConfig(GrpcClientProtocolConfig protocolConfig) {
Objects.requireNonNull(protocolConfig);
this.protocolConfig = protocolConfig;
return self();
}
/**
* gRPC specific configuration.
*
* @param consumer consumer of builder for
* protocol specific configuration
* @return updated builder instance
* @see #protocolConfig()
*/
public BUILDER protocolConfig(Consumer consumer) {
Objects.requireNonNull(consumer);
var builder = GrpcClientProtocolConfig.builder();
consumer.accept(builder);
this.protocolConfig(builder.build());
return self();
}
/**
* gRPC specific configuration.
*
* @param supplier supplier of
* protocol specific configuration
* @return updated builder instance
* @see #protocolConfig()
*/
public BUILDER protocolConfig(Supplier supplier) {
Objects.requireNonNull(supplier);
this.protocolConfig(supplier.get());
return self();
}
/**
* gRPC specific configuration.
*
* @return the protocol config
*/
public GrpcClientProtocolConfig protocolConfig() {
return protocolConfig;
}
/**
* If this instance was configured, this would be the config instance used.
*
* @return config node used to configure this builder, or empty if not configured
*/
public Optional config() {
return Optional.ofNullable(config);
}
@Override
public String toString() {
return "GrpcClientConfigBuilder{"
+ "protocolConfig=" + protocolConfig
+ "};"
+ super.toString();
}
/**
* Handles providers and decorators.
*/
protected void preBuildPrototype() {
super.preBuildPrototype();
}
/**
* Validates required properties.
*/
protected void validatePrototype() {
super.validatePrototype();
}
/**
* Generated implementation of the prototype, can be extended by descendant prototype implementations.
*/
protected static class GrpcClientConfigImpl extends HttpClientConfigImpl implements GrpcClientConfig, Supplier {
private final GrpcClientProtocolConfig protocolConfig;
/**
* Create an instance providing a builder.
*
* @param builder extending builder base of this prototype
*/
protected GrpcClientConfigImpl(GrpcClientConfig.BuilderBase builder) {
super(builder);
this.protocolConfig = builder.protocolConfig();
}
@Override
public GrpcClient build() {
return GrpcClient.create(this);
}
@Override
public GrpcClient get() {
return build();
}
@Override
public GrpcClientProtocolConfig protocolConfig() {
return protocolConfig;
}
@Override
public String toString() {
return "GrpcClientConfig{"
+ "protocolConfig=" + protocolConfig
+ "};"
+ super.toString();
}
@Override
public boolean equals(Object o) {
if (o == this) {
return true;
}
if (!(o instanceof GrpcClientConfig other)) {
return false;
}
return super.equals(other)
&& Objects.equals(protocolConfig, other.protocolConfig());
}
@Override
public int hashCode() {
return 31 * super.hashCode() + Objects.hash(protocolConfig);
}
}
}
/**
* Fluent API builder for {@link GrpcClient}.
*/
class Builder extends GrpcClientConfig.BuilderBase implements io.helidon.common.Builder {
private Builder() {
}
@Override
public GrpcClientConfig buildPrototype() {
preBuildPrototype();
validatePrototype();
return new GrpcClientConfigImpl(this);
}
@Override
public GrpcClient build() {
return GrpcClient.create(this.buildPrototype());
}
}
}