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INT-978 JMX attribute-polling support

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This commit is contained in:
Mark Fisher
2010-03-08 16:43:00 +00:00
parent 9b8150a732
commit 29cf50d874
1 changed files with 24 additions and 4 deletions
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28
org.springframework.integration.jmx/src/main/java/org/springframework/integration/jmx/AttributePollingMessageSource.java
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@@ -26,8 +26,12 @@ import org.springframework.integration.gateway.SimpleMessageMapper;
import org.springframework.integration.message.InboundMessageMapper;
import org.springframework.integration.message.MessageSource;
import org.springframework.jmx.support.ObjectNameManager;
import org.springframework.util.Assert;
/**
* A {@link MessageSource} implementation that retrieves the current
* value of a JMX attribute each time {@link #receive()} is invoked.
*
* @author Mark Fisher
* @since 2.0
*/
@@ -43,6 +47,16 @@ public class AttributePollingMessageSource implements MessageSource {
private volatile InboundMessageMapper<Object> mapper = new SimpleMessageMapper();
/**
* Provide the MBeanServer where the JMX MBean has been registered.
*/
public void setServer(MBeanServer server) {
this.server = server;
}
/**
* Specify the String value of the JMX MBean's {@link ObjectName}.
*/
public void setObjectName(String objectName) {
try {
this.objectName = ObjectNameManager.getInstance(objectName);
@@ -52,15 +66,21 @@ public class AttributePollingMessageSource implements MessageSource {
}
}
/**
* Specify the name of the attribute to be retrieved.
*/
public void setAttributeName(String attributeName) {
this.attributeName = attributeName;
}
public void setServer(MBeanServer server) {
this.server = server;
}
/**
* Retrieves the attribute value and returns it in the
* payload of a Message.
*/
public Message<?> receive() {
Assert.notNull(this.server, "MBeanServer is required");
Assert.notNull(this.objectName, "object name is required");
Assert.notNull(this.attributeName, "attribute name is required");
try {
Object value = this.server.getAttribute(this.objectName, this.attributeName);
return this.mapper.toMessage(value);