io.spring.initializr.actuate.autoconfigure.InitializrStatsAutoConfiguration.java Source code

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Here is the source code for io.spring.initializr.actuate.autoconfigure.InitializrStatsAutoConfiguration.java

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/*
 * Copyright 2012-2018 the original author or authors.
 *
 * 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.spring.initializr.actuate.autoconfigure;

import java.util.Collections;

import io.spring.initializr.actuate.stat.ProjectGenerationStatPublisher;
import io.spring.initializr.actuate.stat.ProjectRequestDocumentFactory;
import io.spring.initializr.actuate.stat.StatsProperties;
import io.spring.initializr.metadata.InitializrMetadataProvider;

import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.autoconfigure.web.client.RestTemplateAutoConfiguration;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.retry.backoff.ExponentialBackOffPolicy;
import org.springframework.retry.policy.SimpleRetryPolicy;
import org.springframework.retry.support.RetryTemplate;

/**
 * {@link org.springframework.boot.autoconfigure.EnableAutoConfiguration
 * Auto-configuration} to publish statistics of each generated project.
 *
 * @author Stephane Nicoll
 */
@Configuration
@EnableConfigurationProperties(StatsProperties.class)
@ConditionalOnProperty("initializr.stats.elastic.uri")
@AutoConfigureAfter(RestTemplateAutoConfiguration.class)
class InitializrStatsAutoConfiguration {

    private final StatsProperties statsProperties;

    InitializrStatsAutoConfiguration(StatsProperties statsProperties) {
        this.statsProperties = statsProperties;
    }

    @Bean
    public ProjectGenerationStatPublisher projectRequestStatHandler(InitializrMetadataProvider provider,
            RestTemplateBuilder restTemplateBuilder) {
        return new ProjectGenerationStatPublisher(new ProjectRequestDocumentFactory(provider), this.statsProperties,
                restTemplateBuilder, statsRetryTemplate());
    }

    @Bean
    @ConditionalOnMissingBean(name = "statsRetryTemplate")
    public RetryTemplate statsRetryTemplate() {
        RetryTemplate retryTemplate = new RetryTemplate();
        ExponentialBackOffPolicy backOffPolicy = new ExponentialBackOffPolicy();
        backOffPolicy.setInitialInterval(3000L);
        backOffPolicy.setMultiplier(3);
        SimpleRetryPolicy retryPolicy = new SimpleRetryPolicy(this.statsProperties.getElastic().getMaxAttempts(),
                Collections.singletonMap(Exception.class, true));
        retryTemplate.setBackOffPolicy(backOffPolicy);
        retryTemplate.setRetryPolicy(retryPolicy);
        return retryTemplate;
    }

}