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brooklyn.util.stream
[Java] Class ThreadLocalPrintStream

java.lang.Object
  java.io.OutputStream
      java.io.FilterOutputStream
          java.io.PrintStream
              brooklyn.util.stream.DelegatingPrintStream
                  brooklyn.util.stream.ThreadLocalPrintStream

public class ThreadLocalPrintStream
extends DelegatingPrintStream
Nested Class Summary
static class ThreadLocalPrintStream.OutputCapturingContext

 
Field Summary
protected java.lang.ThreadLocal customStream

protected java.io.PrintStream defaultPrintStream

 
Constructor Summary
ThreadLocalPrintStream(java.io.PrintStream defaultPrintStream)

 
Method Summary
ThreadLocalPrintStream.OutputCapturingContext capture()

creates a capturing context which eats the output to this stream, blocking the original target
ThreadLocalPrintStream.OutputCapturingContext captureTee()

creates a capturing context which sees the output to this stream, without interrupting the original target
java.io.PrintStream clearThreadLocalPrintStream()

java.io.PrintStream getDelegate()

java.io.PrintStream setThreadLocalPrintStream(java.io.OutputStream stream)

sets the PrintStream that callers from this thread should see; returns any previously custom PrintStream for this thread
static ThreadLocalPrintStream stderr()

installs a thread local print stream to System.err if one is not already set; caller may then #capture and #captureTee on it.
static ThreadLocalPrintStream stdout()

installs a thread local print stream to System.out if one is not already set; caller may then #capture and #captureTee on it.
 
Methods inherited from class DelegatingPrintStream
append, append, append, checkError, close, equals, flush, format, format, getDelegate, hashCode, print, print, print, print, print, print, print, print, print, printf, printf, println, println, println, println, println, println, println, println, println, println, toString, write, write, write
 
Methods inherited from class java.io.PrintStream
java.io.PrintStream#println(char), java.io.PrintStream#println(), java.io.PrintStream#println(boolean), java.io.PrintStream#println(java.lang.Object), java.io.PrintStream#println(java.lang.String), java.io.PrintStream#println([C), java.io.PrintStream#println(double), java.io.PrintStream#println(float), java.io.PrintStream#println(long), java.io.PrintStream#println(int), java.io.PrintStream#append(java.lang.CharSequence), java.io.PrintStream#append(java.lang.CharSequence), java.io.PrintStream#append(java.lang.CharSequence, int, int), java.io.PrintStream#append(char), java.io.PrintStream#append(char), java.io.PrintStream#append(java.lang.CharSequence, int, int), java.io.PrintStream#format(java.util.Locale, java.lang.String, [Ljava.lang.Object;), java.io.PrintStream#format(java.lang.String, [Ljava.lang.Object;), java.io.PrintStream#write([B, int, int), java.io.PrintStream#write(int), java.io.PrintStream#print(float), java.io.PrintStream#print(double), java.io.PrintStream#print([C), java.io.PrintStream#print(java.lang.String), java.io.PrintStream#print(java.lang.Object), java.io.PrintStream#print(boolean), java.io.PrintStream#print(char), java.io.PrintStream#print(int), java.io.PrintStream#print(long), java.io.PrintStream#flush(), java.io.PrintStream#close(), java.io.PrintStream#checkError(), java.io.PrintStream#printf(java.lang.String, [Ljava.lang.Object;), java.io.PrintStream#printf(java.util.Locale, java.lang.String, [Ljava.lang.Object;), java.io.PrintStream#write([B), java.io.PrintStream#wait(), java.io.PrintStream#wait(long), java.io.PrintStream#wait(long, int), java.io.PrintStream#equals(java.lang.Object), java.io.PrintStream#toString(), java.io.PrintStream#hashCode(), java.io.PrintStream#getClass(), java.io.PrintStream#notify(), java.io.PrintStream#notifyAll()
 

Field Detail

customStream

protected final java.lang.ThreadLocal customStream

defaultPrintStream

protected java.io.PrintStream defaultPrintStream

 
Constructor Detail

ThreadLocalPrintStream

public ThreadLocalPrintStream(java.io.PrintStream defaultPrintStream)

 
Method Detail

capture

public ThreadLocalPrintStream.OutputCapturingContext capture()
creates a capturing context which eats the output to this stream, blocking the original target

captureTee

public ThreadLocalPrintStream.OutputCapturingContext captureTee()
creates a capturing context which sees the output to this stream, without interrupting the original target

clearThreadLocalPrintStream

public java.io.PrintStream clearThreadLocalPrintStream()

getDelegate

@Override
public java.io.PrintStream getDelegate()

setThreadLocalPrintStream

public java.io.PrintStream setThreadLocalPrintStream(java.io.OutputStream stream)
sets the PrintStream that callers from this thread should see; returns any previously custom PrintStream for this thread

stderr

public static ThreadLocalPrintStream stderr()
installs a thread local print stream to System.err if one is not already set; caller may then #capture and #captureTee on it.
Returns:
the ThreadLocalPrintStream which System.err is using

stdout

public static ThreadLocalPrintStream stdout()
installs a thread local print stream to System.out if one is not already set; caller may then #capture and #captureTee on it.
Returns:
the ThreadLocalPrintStream which System.out is using

 

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