org.apache.hadoop.hbase.util

Class JSONBean

java.lang.Object

org.apache.hadoop.hbase.util.JSONBean

@InterfaceAudience.Private
public class JSONBean
extends Object

Utility for doing JSON and MBeans.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	JSONBean.Writer Use dumping out mbeans as JSON.

Field Summary

Fields

Modifier and Type	Field and Description
private com.fasterxml.jackson.core.JsonFactory	jsonFactory
private static org.slf4j.Logger	LOG

Constructor Summary

Constructors

Constructor and Description
JSONBean()

Method Summary

Modifier and Type	Method and Description
static void	dumpAllBeans() Dump out all registered mbeans as json on System.out.
JSONBean.Writer	open(PrintWriter writer)
private static int	write(com.fasterxml.jackson.core.JsonGenerator jg, MBeanServer mBeanServer, ObjectName qry, String attribute, boolean description)
private static void	writeAttribute(com.fasterxml.jackson.core.JsonGenerator jg, MBeanServer mBeanServer, ObjectName oname, boolean description, MBeanAttributeInfo attr)
private static void	writeAttribute(com.fasterxml.jackson.core.JsonGenerator jg, String attName, String descriptionStr, Object value)
private static void	writeObject(com.fasterxml.jackson.core.JsonGenerator jg, boolean description, Object value)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LOG

private static final org.slf4j.Logger LOG

jsonFactory

private final com.fasterxml.jackson.core.JsonFactory jsonFactory

Constructor Detail

JSONBean

public JSONBean()

Method Detail

open

public JSONBean.Writer open(PrintWriter writer)
                     throws IOException

Throws:

IOException

write

private static int write(com.fasterxml.jackson.core.JsonGenerator jg,
                         MBeanServer mBeanServer,
                         ObjectName qry,
                         String attribute,
                         boolean description)
                  throws IOException

Returns:

Return non-zero if failed to find bean. 0

Throws:

IOException

writeAttribute

private static void writeAttribute(com.fasterxml.jackson.core.JsonGenerator jg,
                                   MBeanServer mBeanServer,
                                   ObjectName oname,
                                   boolean description,
                                   MBeanAttributeInfo attr)
                            throws IOException

Throws:

IOException

writeAttribute

private static void writeAttribute(com.fasterxml.jackson.core.JsonGenerator jg,
                                   String attName,
                                   String descriptionStr,
                                   Object value)
                            throws IOException

Throws:

IOException

writeObject

private static void writeObject(com.fasterxml.jackson.core.JsonGenerator jg,
                                boolean description,
                                Object value)
                         throws IOException

Throws:

IOException

dumpAllBeans

public static void dumpAllBeans()
                         throws IOException,
                                MalformedObjectNameException

Dump out all registered mbeans as json on System.out.

Throws:

IOException

MalformedObjectNameException