Merge branch '1.2.x'
Phillip Webb
10 years ago
commit
b1f8a692a8
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/*
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* Copyright 2012-2015 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.springframework.boot.actuate.metrics.writer;
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import org.springframework.boot.actuate.metrics.Metric;
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import org.springframework.messaging.Message;
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import org.springframework.messaging.support.MessageBuilder;
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/**
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* A metric message sent via Spring Integration.
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*
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* @author Phillip Webb
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*/
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class MetricMessage {
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private static final String METRIC_NAME = "metricName";
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private static final String DELETE = "delete";
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private final Message<?> message;
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public MetricMessage(Message<?> message) {
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this.message = message;
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}
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public boolean isReset() {
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return DELETE.equals(getPayload());
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}
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public Object getPayload() {
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return this.message.getPayload();
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}
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public String getMetricName() {
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return this.message.getHeaders().get(METRIC_NAME, String.class);
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}
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public static Message<?> forIncrement(Delta<?> delta) {
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return forPayload(delta.getName(), delta);
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}
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public static Message<?> forSet(Metric<?> value) {
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return forPayload(value.getName(), value);
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}
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public static Message<?> forReset(String metricName) {
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return forPayload(metricName, DELETE);
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}
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private static Message<?> forPayload(String metricName, Object payload) {
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MessageBuilder<Object> builder = MessageBuilder.withPayload(payload);
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builder.setHeader(METRIC_NAME, metricName);
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return builder.build();
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}
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}
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