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java.lang.Object org.apache.hadoop.mapreduce.util.CountersStrings
@InterfaceAudience.Private public class CountersStrings
String conversion utilities for counters. Candidate for deprecation since we start to use JSON in 0.21+
Constructor Summary | |
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CountersStrings()
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Method Summary | ||
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static
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parseEscapedCompactString(String compactString,
T counters)
Parse a pre 0.21 counters string into a counter object. |
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static String |
toEscapedCompactString(Counter counter)
Make the pre 0.21 counter string (for e.g. |
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static
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toEscapedCompactString(G group)
Make the 0.21 counter group string. |
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static
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toEscapedCompactString(T counters)
Make the pre 0.21 counters string |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public CountersStrings()
Method Detail |
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public static String toEscapedCompactString(Counter counter)
counter
- to stringify
public static <G extends CounterGroupBase<?>> String toEscapedCompactString(G group)
G
- type of the groupgroup
- to stringify
public static <C extends Counter,G extends CounterGroupBase<C>,T extends AbstractCounters<C,G>> String toEscapedCompactString(T counters)
C
- type of the counterG
- type of the counter groupT
- type of the counters objectcounters
- the object to stringify
public static <C extends Counter,G extends CounterGroupBase<C>,T extends AbstractCounters<C,G>> T parseEscapedCompactString(String compactString, T counters) throws ParseException
C
- type of the counterG
- type of the counter groupT
- type of the counters objectcompactString
- to parsecounters
- an empty counters object to hold the result
ParseException
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