group.rxcloud.capa.component.http.CapaHttpBuilder Maven / Gradle / Ivy
/*
* 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 group.rxcloud.capa.component.http;
import group.rxcloud.capa.component.CapaRpcProperties;
import group.rxcloud.capa.infrastructure.CapaClassLoader;
import group.rxcloud.capa.infrastructure.serializer.CapaObjectSerializer;
import group.rxcloud.capa.infrastructure.serializer.DefaultObjectSerializer;
import okhttp3.OkHttpClient;
import java.time.Duration;
import java.util.concurrent.atomic.AtomicReference;
/**
* A builder for the {@link CapaHttp} implementor.
*/
public class CapaHttpBuilder {
/**
* Static lock object.
*/
private static final Object LOCK = new Object();
/**
* Singleton OkHttpClient.
*/
private static final AtomicReference OK_HTTP_CLIENT = new AtomicReference<>();
/**
* Serializer used for request and response objects in CapaClient.
*/
private CapaObjectSerializer objectSerializer;
/**
* Creates a constructor for CapaHttp.
*
* {@link DefaultObjectSerializer} is used for object and state serializers by default but is not recommended
* for production scenarios.
*/
public CapaHttpBuilder() {
this.objectSerializer = new DefaultObjectSerializer();
}
/**
* Sets the serializer for objects to be sent and received from Capa.
* See {@link DefaultObjectSerializer} as possible serializer for non-production scenarios.
*
* @param objectSerializer Serializer for objects to be sent and received from Capa.
* @return This instance.
*/
public CapaHttpBuilder withObjectSerializer(CapaObjectSerializer objectSerializer) {
if (objectSerializer == null) {
throw new IllegalArgumentException("Object serializer is required");
}
if (objectSerializer.getContentType() == null
|| objectSerializer.getContentType().isEmpty()) {
throw new IllegalArgumentException("Content Type should not be null or empty");
}
this.objectSerializer = objectSerializer;
return this;
}
/**
* Build an instance of the Http client based on the provided setup.
*
* @return an instance of {@link CapaHttp}
* @throws IllegalStateException if any required field is missing
*/
public CapaHttp build() {
return buildCapaHttp();
}
/**
* Creates an instance of the {@link CapaHttp} implementor.
*
* @return Instance of {@link CapaHttp} implementor
*/
private CapaHttp buildCapaHttp() {
if (OK_HTTP_CLIENT.get() == null) {
synchronized (LOCK) {
if (OK_HTTP_CLIENT.get() == null) {
OkHttpClient.Builder builder = new OkHttpClient.Builder();
// read timeout property
Duration readTimeout = Duration.ofSeconds(CapaRpcProperties.Settings.getHttpClientReadTimeoutSeconds());
builder.readTimeout(readTimeout);
OkHttpClient okHttpClient = builder.build();
OK_HTTP_CLIENT.set(okHttpClient);
}
}
}
// load spi capa http impl
return CapaClassLoader.loadComponentClassObj(
"rpc",
CapaHttp.class,
new Class[]{OkHttpClient.class,
CapaObjectSerializer.class},
new Object[]{OK_HTTP_CLIENT.get(),
this.objectSerializer});
}
}