C
- the type of the Counter for the group@InterfaceAudience.Private public abstract class FileSystemCounterGroup<C extends Counter> extends Object implements CounterGroupBase<C>
Modifier and Type | Class and Description |
---|---|
static class |
FileSystemCounterGroup.FSCounter |
Constructor and Description |
---|
FileSystemCounterGroup() |
Modifier and Type | Method and Description |
---|---|
void |
addCounter(C counter)
Add a counter to this group.
|
C |
addCounter(String name,
String displayName,
long value)
Add a counter to this group
|
boolean |
equals(Object genericRight) |
C |
findCounter(String counterName)
Find a counter in the group.
|
C |
findCounter(String counterName,
boolean create)
Find a counter in the group
|
C |
findCounter(String scheme,
FileSystemCounter key) |
C |
findCounter(String counterName,
String displayName)
Find a counter in the group.
|
String |
getDisplayName()
Get the display name of the group.
|
String |
getName()
Get the internal name of the group
|
int |
hashCode() |
void |
incrAllCounters(CounterGroupBase<C> other)
Increment all counters by a group of counters
|
Iterator<C> |
iterator() |
protected abstract C |
newCounter(String scheme,
FileSystemCounter key)
Abstract factory method to create a file system counter
|
void |
readFields(DataInput in) |
void |
setDisplayName(String displayName)
Set the display name of the group
|
int |
size() |
void |
write(DataOutput out)
FileSystemGroup ::= #scheme (scheme #counter (key value)*)*
|
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
getUnderlyingGroup
forEach, spliterator
public String getName()
CounterGroupBase
getName
in interface CounterGroupBase<C extends Counter>
public String getDisplayName()
CounterGroupBase
getDisplayName
in interface CounterGroupBase<C extends Counter>
public void setDisplayName(String displayName)
CounterGroupBase
setDisplayName
in interface CounterGroupBase<C extends Counter>
displayName
- of the grouppublic void addCounter(C counter)
CounterGroupBase
addCounter
in interface CounterGroupBase<C extends Counter>
counter
- to addpublic C addCounter(String name, String displayName, long value)
CounterGroupBase
addCounter
in interface CounterGroupBase<C extends Counter>
name
- of the counterdisplayName
- of the countervalue
- of the counterpublic C findCounter(String counterName, String displayName)
CounterGroupBase
findCounter
in interface CounterGroupBase<C extends Counter>
counterName
- the name of the counterdisplayName
- the display name of the counterpublic C findCounter(String counterName, boolean create)
CounterGroupBase
findCounter
in interface CounterGroupBase<C extends Counter>
counterName
- the name of the countercreate
- create the counter if not found if truepublic C findCounter(String counterName)
CounterGroupBase
findCounter
in interface CounterGroupBase<C extends Counter>
counterName
- the name of the counterpublic C findCounter(String scheme, FileSystemCounter key)
protected abstract C newCounter(String scheme, FileSystemCounter key)
scheme
- of the file systemkey
- the enum of the file system counterpublic int size()
size
in interface CounterGroupBase<C extends Counter>
public void incrAllCounters(CounterGroupBase<C> other)
CounterGroupBase
incrAllCounters
in interface CounterGroupBase<C extends Counter>
other
- the group to be added to this grouppublic void write(DataOutput out) throws IOException
write
in interface org.apache.hadoop.io.Writable
IOException
public void readFields(DataInput in) throws IOException
readFields
in interface org.apache.hadoop.io.Writable
IOException
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