spring TextOutputFormat 源码
springboot TextOutputFormat 代码
文件路径：/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/export/prometheus/TextOutputFormat.java
/*
* Copyright 2012-2021 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
*
* https://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 org.springframework.boot.actuate.metrics.export.prometheus;
import java.io.IOException;
import java.io.Writer;
import java.util.Enumeration;
import io.prometheus.client.Collector.MetricFamilySamples;
import io.prometheus.client.exporter.common.TextFormat;
import org.springframework.boot.actuate.endpoint.Producible;
import org.springframework.util.MimeType;
import org.springframework.util.MimeTypeUtils;
/**
* A {@link Producible} enum for supported Prometheus {@link TextFormat}.
*
* @author Andy Wilkinson
* @since 2.5.0
*/
public enum TextOutputFormat implements Producible<TextOutputFormat> {
/**
* Prometheus text version 0.0.4.
*/
CONTENT_TYPE_004(TextFormat.CONTENT_TYPE_004) {
@Override
void write(Writer writer, Enumeration<MetricFamilySamples> samples) throws IOException {
TextFormat.write004(writer, samples);
}
@Override
public boolean isDefault() {
return true;
}
},
/**
* OpenMetrics text version 1.0.0.
*/
CONTENT_TYPE_OPENMETRICS_100(TextFormat.CONTENT_TYPE_OPENMETRICS_100) {
@Override
void write(Writer writer, Enumeration<MetricFamilySamples> samples) throws IOException {
TextFormat.writeOpenMetrics100(writer, samples);
}
};
private final MimeType mimeType;
TextOutputFormat(String mimeType) {
this.mimeType = MimeTypeUtils.parseMimeType(mimeType);
}
@Override
public MimeType getProducedMimeType() {
return this.mimeType;
}
abstract void write(Writer writer, Enumeration<MetricFamilySamples> samples) throws IOException;
}
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- 本文标签： Spring Boot Java Spring
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