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Spring Boot Actuator AutoConfigure
/*
* 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 org.springframework.boot.actuate.autoconfigure.endpoint.jmx;
import javax.management.MBeanServer;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import org.springframework.boot.actuate.endpoint.jmx.EndpointObjectNameFactory;
import org.springframework.boot.actuate.endpoint.jmx.ExposableJmxEndpoint;
import org.springframework.core.env.Environment;
import org.springframework.jmx.support.ObjectNameManager;
import org.springframework.util.ObjectUtils;
import org.springframework.util.StringUtils;
/**
* A {@link EndpointObjectNameFactory} that generates standard {@link ObjectName} for
* Actuator's endpoints.
*
* @author Stephane Nicoll
*/
class DefaultEndpointObjectNameFactory implements EndpointObjectNameFactory {
private final JmxEndpointProperties properties;
private final MBeanServer mBeanServer;
private final String contextId;
private final boolean uniqueNames;
DefaultEndpointObjectNameFactory(JmxEndpointProperties properties,
Environment environment, MBeanServer mBeanServer, String contextId) {
this.properties = properties;
this.mBeanServer = mBeanServer;
this.contextId = contextId;
this.uniqueNames = determineUniqueNames(environment, properties);
}
@SuppressWarnings("deprecation")
private static boolean determineUniqueNames(Environment environment,
JmxEndpointProperties properties) {
Boolean uniqueNames = environment.getProperty("spring.jmx.unique-names",
Boolean.class);
Boolean endpointUniqueNames = properties.getUniqueNames();
if (uniqueNames == null) {
return (endpointUniqueNames != null) ? endpointUniqueNames : false;
}
if (endpointUniqueNames != null & !uniqueNames.equals(endpointUniqueNames)) {
throw new IllegalArgumentException(
"Configuration mismatch, 'management.endpoints.jmx.unique-names' is deprecated, use only 'spring.jmx.unique-names'");
}
return uniqueNames;
}
@Override
public ObjectName getObjectName(ExposableJmxEndpoint endpoint)
throws MalformedObjectNameException {
StringBuilder builder = new StringBuilder(this.properties.getDomain());
builder.append(":type=Endpoint");
builder.append(",name=")
.append(StringUtils.capitalize(endpoint.getEndpointId().toString()));
String baseName = builder.toString();
if (this.mBeanServer != null && hasMBean(baseName)) {
builder.append(",context=").append(this.contextId);
}
if (this.uniqueNames) {
String identity = ObjectUtils.getIdentityHexString(endpoint);
builder.append(",identity=").append(identity);
}
builder.append(getStaticNames());
return ObjectNameManager.getInstance(builder.toString());
}
private boolean hasMBean(String baseObjectName) throws MalformedObjectNameException {
ObjectName query = new ObjectName(baseObjectName + ",*");
return !this.mBeanServer.queryNames(query, null).isEmpty();
}
private String getStaticNames() {
if (this.properties.getStaticNames().isEmpty()) {
return "";
}
StringBuilder builder = new StringBuilder();
this.properties.getStaticNames().forEach((name, value) -> builder.append(",")
.append(name).append("=").append(value));
return builder.toString();
}
}