WillemJiang closed pull request #574: [SCB-372] support user set metrics
prometheus exporter address not only port
URL: https://github.com/apache/incubator-servicecomb-java-chassis/pull/574
This is a PR merged from a forked repository.
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the sake of provenance:
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diff --git
a/metrics/metrics-integration/metrics-prometheus/src/main/java/org/apache/servicecomb/metrics/prometheus/MetricsHttpPublisher.java
b/metrics/metrics-integration/metrics-prometheus/src/main/java/org/apache/servicecomb/metrics/prometheus/MetricsHttpPublisher.java
index 718746766..d2ea6de36 100644
---
a/metrics/metrics-integration/metrics-prometheus/src/main/java/org/apache/servicecomb/metrics/prometheus/MetricsHttpPublisher.java
+++
b/metrics/metrics-integration/metrics-prometheus/src/main/java/org/apache/servicecomb/metrics/prometheus/MetricsHttpPublisher.java
@@ -17,7 +17,6 @@
package org.apache.servicecomb.metrics.prometheus;
-import java.io.IOException;
import java.net.InetSocketAddress;
import
org.apache.servicecomb.foundation.common.exceptions.ServiceCombException;
@@ -37,21 +36,38 @@
public class MetricsHttpPublisher implements
ApplicationListener<ApplicationEvent> {
private static final Logger LOGGER =
LoggerFactory.getLogger(MetricsHttpPublisher.class);
- private static final String METRICS_PROMETHEUS_PORT =
"servicecomb.metrics.prometheus.port";
+ private static final String METRICS_PROMETHEUS_ADDRESS =
"servicecomb.metrics.prometheus.address";
private HTTPServer httpServer;
public MetricsHttpPublisher() {
//prometheus default port allocation is here :
https://github.com/prometheus/prometheus/wiki/Default-port-allocations
- int publishPort =
DynamicPropertyFactory.getInstance().getIntProperty(METRICS_PROMETHEUS_PORT,
9696).get();
- MetricsCollector metricsCollector = new MetricsCollector();
- metricsCollector.register();
+ this.init(
+
DynamicPropertyFactory.getInstance().getStringProperty(METRICS_PROMETHEUS_ADDRESS,
"0.0.0.0:9696").get());
+ }
+
+ public MetricsHttpPublisher(String address) {
+ this.init(address);
+ }
+
+ private void init(String address) {
try {
- this.httpServer = new HTTPServer(new InetSocketAddress(publishPort),
CollectorRegistry.defaultRegistry, true);
- LOGGER.info("Prometheus httpServer listened {}.", publishPort);
- } catch (IOException e) {
- throw new ServiceCombException("create http publish server failed", e);
+ InetSocketAddress socketAddress = getSocketAddress(address);
+ MetricsCollector metricsCollector = new MetricsCollector();
+ metricsCollector.register();
+ this.httpServer = new HTTPServer(socketAddress,
CollectorRegistry.defaultRegistry, true);
+ LOGGER.info("Prometheus httpServer listened : {}.", address);
+ } catch (Exception e) {
+ throw new ServiceCombException("create http publish server failed,may
bad address : " + address, e);
+ }
+ }
+
+ private InetSocketAddress getSocketAddress(String address) {
+ String[] hostAndPort = address.split(":");
+ if (hostAndPort.length == 2) {
+ return new InetSocketAddress(hostAndPort[0],
Integer.parseInt(hostAndPort[1]));
}
+ throw new ServiceCombException("create http publish server failed,bad
address : " + address);
}
@Override
diff --git
a/metrics/metrics-integration/metrics-prometheus/src/test/java/org/apache/servicecomb/metrics/prometheus/TestMetricsHttpPublisher.java
b/metrics/metrics-integration/metrics-prometheus/src/test/java/org/apache/servicecomb/metrics/prometheus/TestMetricsHttpPublisher.java
new file mode 100644
index 000000000..0f01e4650
--- /dev/null
+++
b/metrics/metrics-integration/metrics-prometheus/src/test/java/org/apache/servicecomb/metrics/prometheus/TestMetricsHttpPublisher.java
@@ -0,0 +1,56 @@
+/*
+ * 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 org.apache.servicecomb.metrics.prometheus;
+
+import
org.apache.servicecomb.foundation.common.exceptions.ServiceCombException;
+import org.junit.Assert;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+public class TestMetricsHttpPublisher {
+
+ @Rule
+ public ExpectedException thrown = ExpectedException.none();
+
+ @Test
+ public void testBadPublishAddress() {
+ thrown.expect(ServiceCombException.class);
+ new MetricsHttpPublisher("a:b:c");
+ Assert.fail("testBadPublishAddress failed,this address must throw
ServiceCombException : a:b:c");
+ }
+
+ @Test
+ public void testBadPublishAddress_BadPort() {
+ thrown.expect(ServiceCombException.class);
+ new MetricsHttpPublisher("localhost:xxxx");
+ Assert.fail("testBadPublishAddress failed,this address must throw
ServiceCombException : localhost:xxxx");
+ }
+
+ @Test
+ public void testBadPublishAddress_ToLargePort() {
+ thrown.expect(ServiceCombException.class);
+ new MetricsHttpPublisher("localhost:9999999");
+ Assert.fail("testBadPublishAddress failed,this address must throw
ServiceCombException : localhost:9999999");
+ }
+
+ @Test
+ public void testRightPublishAddress() {
+ new MetricsHttpPublisher("localhost:43234");
+ }
+}
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