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Difference between revisions of "Gemini/Management/Examples"
< Gemini | Management
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== Examples == | == Examples == | ||
| + | |||
| + | == Accessing Gemini Management MBeans from a Groovy Script == | ||
| + | |||
| + | Create a server connection: | ||
| + | |||
| + | <source lang="groovy"> | ||
| + | import groovy.jmx.builder.JmxBuilder | ||
| + | import javax.management.MBeanServerConnection | ||
| + | |||
| + | def client = new JmxBuilder().connectorClient(port: 1234) | ||
| + | |||
| + | print("connecting to JMX server...") | ||
| + | client.connect() | ||
| + | println("established.") | ||
| + | |||
| + | MBeanServerConnection serverConnection = client.getMBeanServerConnection() | ||
| + | </source> | ||
| + | |||
| + | == Query the list of available bundles == | ||
| + | |||
| + | <source lang="groovy"> | ||
| + | ObjectName objectName = serverConnection.queryNames(new ObjectName("osgi.core:type=bundleState,*"), null).first() | ||
| + | TabularData data = serverConnection.invoke(objectName, "listBundles", null, null) | ||
| + | |||
| + | println("List of available bundles:") | ||
| + | data.values().each { println "[" + it.get("Identifier") + "] - " + it.get("State") + " - " + it.get("SymbolicName")} | ||
| + | </source> | ||
| + | Sample output: | ||
| + | |||
| + | <source lang="text"> | ||
| + | List of available bundles: | ||
| + | [0] - ACTIVE - org.eclipse.osgi | ||
| + | [1] - ACTIVE - org.eclipse.osgi.services | ||
| + | [2] - ACTIVE - osgi.enterprise | ||
| + | [3] - ACTIVE - org.eclipse.gemini.management | ||
| + | </source> | ||
| + | |||
| + | == Query the available info per bundle == | ||
| + | |||
| + | <source lang="groovy"> | ||
| + | ObjectName objectName = serverConnection.queryNames(new ObjectName("osgi.core:type=bundleState,*"), null).first() | ||
| + | TabularData data = serverConnection.invoke(objectName, "listBundles", null, null) | ||
| + | |||
| + | println("List of available info:") | ||
| + | println data.values().first().compositeType.keySet().each {println it} | ||
| + | </source> | ||
| + | |||
| + | Sample output: | ||
| + | |||
| + | <source lang="text"> | ||
| + | List of available info: | ||
| + | ActivationPolicyUsed | ||
| + | ExportedPackages | ||
| + | Fragment | ||
| + | Fragments | ||
| + | Headers | ||
| + | ... | ||
| + | </source> | ||
| + | |||
| + | == Introspect a single bundle == | ||
| + | |||
| + | The following snippet checks if the bundle with ID 3 is a fragment, then prints all bundle headers. | ||
| + | |||
| + | <source lang="groovy"> | ||
| + | long bundleId = 3 | ||
| + | def args = [bundleId] as Object[] | ||
| + | def signature = ["long"] as String[] | ||
| + | def isFragment = serverConnection.invoke(objectName, "isFragment", args, signature) | ||
| + | println "Is bundle $bundleId a fragment? $isFragment" | ||
| + | |||
| + | println "Bundle $bundleId has the following bundle headers:" | ||
| + | def headers = serverConnection.invoke(objectName, "getHeaders", args, signature) | ||
| + | headers.values().each { println it.get("Key") + " = " + it.get("Value") } | ||
| + | </source> | ||
| + | |||
| + | Sample output: | ||
| + | |||
| + | <source lang="text"> | ||
| + | Is bundle 3 a fragment? false | ||
| + | Bundle 3 has the following bundle headers: | ||
| + | Manifest-Version = 1.0 | ||
| + | Archiver-Version = Plexus Archiver | ||
| + | Created-By = Apache Maven | ||
| + | Built-By = cgfrost | ||
| + | Build-Jdk = 1.6.0_45 | ||
| + | Export-Package = org.osgi.jmx;uses:="javax.management.openmbean";version="1.1", [...] | ||
| + | Bundle-Vendor = Eclipse Gemini Management | ||
| + | Bundle-Version = 2.0.0.RELEASE | ||
| + | Bundle-Name = Gemini Management | ||
| + | ... | ||
| + | </source> | ||
Latest revision as of 09:12, 24 September 2013
Contents
Examples
Accessing Gemini Management MBeans from a Groovy Script
Create a server connection:
import groovy.jmx.builder.JmxBuilder import javax.management.MBeanServerConnection def client = new JmxBuilder().connectorClient(port: 1234) print("connecting to JMX server...") client.connect() println("established.") MBeanServerConnection serverConnection = client.getMBeanServerConnection()
Query the list of available bundles
ObjectName objectName = serverConnection.queryNames(new ObjectName("osgi.core:type=bundleState,*"), null).first() TabularData data = serverConnection.invoke(objectName, "listBundles", null, null) println("List of available bundles:") data.values().each { println "[" + it.get("Identifier") + "] - " + it.get("State") + " - " + it.get("SymbolicName")}
Sample output:
List of available bundles: [0] - ACTIVE - org.eclipse.osgi [1] - ACTIVE - org.eclipse.osgi.services [2] - ACTIVE - osgi.enterprise [3] - ACTIVE - org.eclipse.gemini.management
Query the available info per bundle
ObjectName objectName = serverConnection.queryNames(new ObjectName("osgi.core:type=bundleState,*"), null).first() TabularData data = serverConnection.invoke(objectName, "listBundles", null, null) println("List of available info:") println data.values().first().compositeType.keySet().each {println it}
Sample output:
List of available info: ActivationPolicyUsed ExportedPackages Fragment Fragments Headers ...
Introspect a single bundle
The following snippet checks if the bundle with ID 3 is a fragment, then prints all bundle headers.
long bundleId = 3 def args = [bundleId] as Object[] def signature = ["long"] as String[] def isFragment = serverConnection.invoke(objectName, "isFragment", args, signature) println "Is bundle $bundleId a fragment? $isFragment" println "Bundle $bundleId has the following bundle headers:" def headers = serverConnection.invoke(objectName, "getHeaders", args, signature) headers.values().each { println it.get("Key") + " = " + it.get("Value") }
Sample output:
Is bundle 3 a fragment? false Bundle 3 has the following bundle headers: Manifest-Version = 1.0 Archiver-Version = Plexus Archiver Created-By = Apache Maven Built-By = cgfrost Build-Jdk = 1.6.0_45 Export-Package = org.osgi.jmx;uses:="javax.management.openmbean";version="1.1", [...] Bundle-Vendor = Eclipse Gemini Management Bundle-Version = 2.0.0.RELEASE Bundle-Name = Gemini Management ...