io.warp10.script

Class MemoryWarpScriptStack

java.lang.Object

io.warp10.script.MemoryWarpScriptStack

All Implemented Interfaces:

WarpScriptStack, org.apache.hadoop.util.Progressable

public class MemoryWarpScriptStack
extends java.lang.Object
implements WarpScriptStack, org.apache.hadoop.util.Progressable

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MemoryWarpScriptStack.StackContext

Nested classes/interfaces inherited from interface io.warp10.script.WarpScriptStack

WarpScriptStack.Macro, WarpScriptStack.Mark, WarpScriptStack.Signal

Field Summary

Fields inherited from interface io.warp10.script.WarpScriptStack

ATTRIBUTE_ALLOW_REDEFINED, ATTRIBUTE_CREATION_TIME, ATTRIBUTE_DEBUG_DEPTH, ATTRIBUTE_ELAPSED, ATTRIBUTE_EXPORTED_SYMBOLS, ATTRIBUTE_FETCH_COUNT, ATTRIBUTE_FETCH_LIMIT, ATTRIBUTE_FETCH_LIMIT_HARD, ATTRIBUTE_GTS_COUNT, ATTRIBUTE_GTS_LIMIT, ATTRIBUTE_GTS_LIMIT_HARD, ATTRIBUTE_HADOOP_PROGRESSABLE, ATTRIBUTE_HEADERS, ATTRIBUTE_IMPORT_RULES, ATTRIBUTE_IN_SECURE_MACRO, ATTRIBUTE_IN_XEVAL, ATTRIBUTE_INFOMODE, ATTRIBUTE_INTERACTIVE_ECHO, ATTRIBUTE_INTERACTIVE_JSON, ATTRIBUTE_INTERACTIVE_TIME, ATTRIBUTE_INTERACTIVE_WRITER, ATTRIBUTE_JSON_MAXSIZE, ATTRIBUTE_JSON_MAXSIZE_HARD, ATTRIBUTE_JSON_PRETTY, ATTRIBUTE_JSON_STRICT, ATTRIBUTE_LAST_ERROR, ATTRIBUTE_LINENO, ATTRIBUTE_LOOP_MAXDURATION, ATTRIBUTE_LOOP_MAXDURATION_HARD, ATTRIBUTE_MACRO_NAME, ATTRIBUTE_MACRO_TTL, ATTRIBUTE_MAX_BUCKETS, ATTRIBUTE_MAX_BUCKETS_HARD, ATTRIBUTE_MAX_DEPTH, ATTRIBUTE_MAX_DEPTH_HARD, ATTRIBUTE_MAX_GEOCELLS, ATTRIBUTE_MAX_GEOCELLS_HARD, ATTRIBUTE_MAX_OPS, ATTRIBUTE_MAX_OPS_HARD, ATTRIBUTE_MAX_PIXELS, ATTRIBUTE_MAX_PIXELS_HARD, ATTRIBUTE_MAX_SYMBOLS, ATTRIBUTE_MAX_SYMBOLS_HARD, ATTRIBUTE_NAME, ATTRIBUTE_OPS, ATTRIBUTE_PARSING_ERRORS, ATTRIBUTE_RECURSION_MAXDEPTH, ATTRIBUTE_RECURSION_MAXDEPTH_HARD, ATTRIBUTE_RUNNER_RESCHEDULE_PERIOD, ATTRIBUTE_RUNNER_RESCHEDULE_TIMESTAMP, ATTRIBUTE_SECTION_NAME, ATTRIBUTE_SECURE_KEY, ATTRIBUTE_TIMEBOXED, ATTRIBUTE_TIMINGS, CAPABILITIES_ATTR, CAPABILITIES_PREFIX, CAPABILITY_DEBUG, CAPABILITY_HTTP, CAPABILITY_INVENTORY, CAPABILITY_LEVELDB, CAPABILITY_LEVELDB_ADMIN, CAPABILITY_LEVELDB_CLOSE, CAPABILITY_LEVELDB_COMPACT, CAPABILITY_LEVELDB_FIND, CAPABILITY_LEVELDB_INFO, CAPABILITY_LEVELDB_OPEN, CAPABILITY_LEVELDB_PURGE, CAPABILITY_LEVELDB_REPAIR, CAPABILITY_LEVELDB_REPORT, CAPABILITY_LEVELDB_SNAPSHOT, CAPABILITY_LEVELDB_TIMESTAMP, CAPABILITY_LIMIT, CAPABILITY_LIMITS, CAPABILITY_MANAGER, CAPABILITY_MAXBUCKETS, CAPABILITY_MAXDEPTH, CAPABILITY_MAXGEOCELLS, CAPABILITY_MAXGTS, CAPABILITY_MAXJSON, CAPABILITY_MAXLOOP, CAPABILITY_MAXOPS, CAPABILITY_MAXPIXELS, CAPABILITY_MAXRECURSION, CAPABILITY_MAXSYMBOLS, CAPABILITY_REPORT, CAPABILITY_SETMACROCONFIG, CAPABILITY_SLEEP_MAXTIME, CAPABILITY_TIMEBOX_MAXTIME, CAPABILITY_WFGET, CAPABILITY_WFSET, CAPNAME_RUNNER_RESCHEDULE_MIN_PERIOD, COMMENT_END, COMMENT_START, COUNTER_RETURN_DEPTH, DEFAULT_FETCH_LIMIT, DEFAULT_GTS_LIMIT, DEFAULT_MAX_BUCKETS, DEFAULT_MAX_DEPTH, DEFAULT_MAX_GEOCELLS, DEFAULT_MAX_JSON, DEFAULT_MAX_LOOP_DURATION, DEFAULT_MAX_OPS, DEFAULT_MAX_PIXELS, DEFAULT_MAX_RECURSION_LEVEL, DEFAULT_MAX_SYMBOLS, DEFAULT_REGISTERS, MACRO_END, MACRO_START, MULTILINE_END, MULTILINE_START, SECURE_SCRIPT_END, SECURE_SCRIPT_START, TOP_LEVEL_SECTION

Constructor Summary

Constructors

Constructor and Description
MemoryWarpScriptStack(StoreClient storeClient, DirectoryClient directoryClient)
MemoryWarpScriptStack(StoreClient storeClient, DirectoryClient directoryClient, java.util.Properties properties)
MemoryWarpScriptStack(StoreClient storeClient, DirectoryClient directoryClient, java.util.Properties properties, boolean init)

Method Summary

Modifier and Type	Method and Description
void	auditMode(boolean auditMode) Turn on/off auditMode.
void	checkBalanced() Perform a final check to ensure balancing constructs are balanced.
void	checkOps()
void	clear() Empty the stack
void	define(java.lang.String stmt, WarpScriptStack.Macro macro) (re)define a statement If 'macro' is null, clear the (re)definition of 'stmt'
int	depth() Return the depth (i.e.
void	drop() Remove the top of the stack.
void	dropn() Remove the top 'N' objects of the stack.
java.lang.String	dump(int n) Produces a String representation of the top 'n' levels of the stack
void	dup() Duplicate the object on top of the stack.
void	dupn() Duplicate the top 'N' objects of the stack.
void	exec(java.lang.String line) Execute a serie of statements against the stack.
void	exec(java.lang.String line, long lineNumber) Execute a series of statements against the stack.
void	exec(WarpScriptStack.Macro macro) Execute a macro against the stack.
void	execMulti(java.lang.String script)
WarpScriptStack.Macro	find(java.lang.String symbol) Find a macro by name
java.lang.Object	findFunction(java.lang.String stmt) Find a function by name
void	forget(java.lang.String symbol) Forget the given symbol
java.lang.Object	get(int n) Return the object at level 'level' on the stack.
java.lang.Object	getAttribute(java.lang.String key) Return the value of an attribute.
java.util.concurrent.atomic.AtomicLong	getCounter(int i) Return the ith counter associated with the stack
java.util.Map<java.lang.String,WarpScriptStackFunction>	getDefined() Return the current map of redefined functions
DirectoryClient	getDirectoryClient() Retrieve the DirectoryClient instance associated with this stack
int	getMacroDepth()
long	getRecursionLevel()
java.lang.Object[]	getRegisters() Return the current registers.
StoreClient	getStoreClient() Retrieve the StoreClient instance associated with this stack.
MemoryWarpScriptStack	getSubStack() Create a 'sub' stack of the current one.
java.util.Map<java.lang.String,java.lang.Object>	getSymbolTable() Return the current symbol table.
java.lang.String	getUUID() Return a UUID for the instance of WarpScriptStack
void	handleSignal() Throw the exception associated with the current signal sent to the stack
int	hide() Hide all stack levels
int	hide(int count) Hide the deepest 'count' stack levels
void	incOps() Increment the operation count and check for limit.
boolean	isInComment()
boolean	isInMultiline()
boolean	isInSecureScript()
java.lang.Object	load(int regidx) Return the content associated with the given register
java.lang.Object	load(java.lang.String symbol) Return the content associated with the given symbol.
void	macroClose() Closes the currently open macro (after macroOpen was called) and push it onto the stack.
void	macroOpen() Force the stack to create a macro with all following statements.
void	maxLimits()
java.lang.Object	peek() Return the object on top of the stack without removing it from the stack.
java.lang.Object	peekn() Return the object at 'distance' from the top of the stack.
void	pick() Copy the object at level 'N' on top of the stack.
java.lang.Object	pop() Remove and return the object on top of the stack.
java.lang.Object[]	popn() Remove and return 'N' objects from the top of the stack.
java.lang.Object[]	popn(int n) Remove and return 'N' objects from the top of the stack.
void	progress()
void	push(java.lang.Object o) Push an object onto the stack
protected void	recurseIn()
protected void	recurseOut()
void	reset(int depth) Reset the stack to the given depth
void	restore() Restore the stack context from that on top of the stack
void	restore(WarpScriptStack.StackContext ctxt) Restore the given stack context
void	roll() Rotate up the top 'N' objects of the stack.
void	rolld() Rotate down the top 'N' objects of the stack.
void	rot() Rotate the top 3 objects of the stack, pushing the top of the stack down D D C -> B B A A (top) C (top)
void	run(java.lang.String symbol) Execute a macro known by name.
void	save() Push the current stack context (symbols + redefined statements) onto the stack.
java.lang.Object	setAttribute(java.lang.String key, java.lang.Object value) Set a stack attribute.
void	setFunctionMetrics(boolean state)
void	show() Show all previously hidden stack levels.
void	show(int count) Show some stack levels previously hidden.
void	signal(WarpScriptStack.Signal signal) Signal the stack, i.e.
void	store(int regidx, java.lang.Object value) Stores the given value in register 'regidx'
void	store(java.lang.String symbol, java.lang.Object value) Store the given object under 'symbol'.
void	swap() Swap the top 2 objects of the stack.

Methods inherited from class java.lang.Object

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

Constructor Detail

MemoryWarpScriptStack

public MemoryWarpScriptStack(StoreClient storeClient,
                             DirectoryClient directoryClient)

MemoryWarpScriptStack

public MemoryWarpScriptStack(StoreClient storeClient,
                             DirectoryClient directoryClient,
                             java.util.Properties properties)

MemoryWarpScriptStack

public MemoryWarpScriptStack(StoreClient storeClient,
                             DirectoryClient directoryClient,
                             java.util.Properties properties,
                             boolean init)

Method Detail

getStoreClient

public StoreClient getStoreClient()

Description copied from interface: WarpScriptStack

Retrieve the StoreClient instance associated with this stack.

Specified by:

getStoreClient in interface WarpScriptStack

getDirectoryClient

public DirectoryClient getDirectoryClient()

Description copied from interface: WarpScriptStack

Retrieve the DirectoryClient instance associated with this stack

Specified by:

getDirectoryClient in interface WarpScriptStack

maxLimits

public void maxLimits()

depth

public int depth()

Description copied from interface: WarpScriptStack

Return the depth (i.e. number of objects) of the stack

Specified by:

depth in interface WarpScriptStack

Returns:

The depth of the stack

reset

public void reset(int depth)
           throws WarpScriptException

Description copied from interface: WarpScriptStack

Reset the stack to the given depth

Specified by:

reset in interface WarpScriptStack

Throws:

WarpScriptException

clear

public void clear()

Description copied from interface: WarpScriptStack

Empty the stack

Specified by:

clear in interface WarpScriptStack

drop

public void drop()
          throws java.util.EmptyStackException

Description copied from interface: WarpScriptStack

Remove the top of the stack.

Specified by:

drop in interface WarpScriptStack

Throws:

InformativeEmptyStackException - If the stack is empty.

java.util.EmptyStackException

dropn

public void dropn()
           throws java.util.EmptyStackException,
                  java.lang.IndexOutOfBoundsException

Description copied from interface: WarpScriptStack

Remove the top 'N' objects of the stack.

Specified by:

dropn in interface WarpScriptStack

Throws:

InformativeEmptyStackException - if the stack is empty.

java.lang.IndexOutOfBoundsException - If 'N' is not present on the top of the stack, is not a number or if the stack has fewer than 'N' objects after consuming 'N'.

java.util.EmptyStackException

dup

public void dup()
         throws java.util.EmptyStackException,
                WarpScriptException

Description copied from interface: WarpScriptStack

Duplicate the object on top of the stack.

Specified by:

dup in interface WarpScriptStack

Throws:

InformativeEmptyStackException - if the stack is empty.

java.util.EmptyStackException

WarpScriptException

dupn

public void dupn()
          throws java.util.EmptyStackException,
                 java.lang.IndexOutOfBoundsException,
                 WarpScriptException

Description copied from interface: WarpScriptStack

Duplicate the top 'N' objects of the stack. 'N' is consumed at the top of the stack first.

Specified by:

dupn in interface WarpScriptStack

Throws:

InformativeEmptyStackException - if the stack is empty.

java.lang.IndexOutOfBoundsException - if the stack contains less than 'N' objects.

java.util.EmptyStackException

WarpScriptException

pop

public java.lang.Object pop()
                     throws java.util.EmptyStackException

Description copied from interface: WarpScriptStack

Remove and return the object on top of the stack.

Specified by:

pop in interface WarpScriptStack

Returns:

The object on top of the stack

Throws:

InformativeEmptyStackException - if the stack is empty.

java.util.EmptyStackException

popn

public java.lang.Object[] popn()
                        throws java.util.EmptyStackException,
                               java.lang.IndexOutOfBoundsException

Description copied from interface: WarpScriptStack

Remove and return 'N' objects from the top of the stack. 'N' is consumed at the top of the stack prior to removing and returning the objects.

Specified by:

popn in interface WarpScriptStack

Returns:

An array of 'N' objects, the first being the deepest.

Throws:

InformativeEmptyStackException - if the stack is empty.

java.lang.IndexOutOfBoundsException - If 'N' is not present or if 'N' is invalid or if the stack is not deep enough.

java.util.EmptyStackException

popn

public java.lang.Object[] popn(int n)
                        throws java.util.EmptyStackException,
                               java.lang.IndexOutOfBoundsException

Description copied from interface: WarpScriptStack

Remove and return 'N' objects from the top of the stack. 'N' is NOT taken from the stack but given as parameter.

Specified by:

popn in interface WarpScriptStack

Returns:

An array of 'N' objects, the first being the deepest.

Throws:

InformativeEmptyStackException - if the stack is empty.

java.lang.IndexOutOfBoundsException - If 'N' is invalid or if the stack is not deep enough.

java.util.EmptyStackException

push

public void push(java.lang.Object o)
          throws WarpScriptException

Description copied from interface: WarpScriptStack

Push an object onto the stack

Specified by:

push in interface WarpScriptStack

Parameters:

o - Object to push onto the stack

Throws:

WarpScriptException

swap

public void swap()
          throws WarpScriptException,
                 java.util.EmptyStackException,
                 java.lang.IndexOutOfBoundsException

Description copied from interface: WarpScriptStack

Swap the top 2 objects of the stack.

Specified by:

swap in interface WarpScriptStack

Throws:

InformativeEmptyStackException - if the stack is empty.

java.lang.IndexOutOfBoundsException - if the stack is empty or contains a single element.

WarpScriptException

java.util.EmptyStackException

peek

public java.lang.Object peek()
                      throws java.util.EmptyStackException

Description copied from interface: WarpScriptStack

Return the object on top of the stack without removing it from the stack.

Specified by:

peek in interface WarpScriptStack

Returns:

The object on top of the stack

Throws:

InformativeEmptyStackException - if the stack is empty.

java.util.EmptyStackException

rot

public void rot()
         throws java.util.EmptyStackException,
                java.lang.IndexOutOfBoundsException

Description copied from interface: WarpScriptStack

Rotate the top 3 objects of the stack, pushing the top of the stack down D D C -> B B A A (top) C (top)

Specified by:

rot in interface WarpScriptStack

Throws:

InformativeEmptyStackException - if the stack is empty.

java.lang.IndexOutOfBoundsException - if the stack contains less than 3 objects

java.util.EmptyStackException

roll

public void roll()
          throws java.util.EmptyStackException,
                 java.lang.IndexOutOfBoundsException

Description copied from interface: WarpScriptStack

Rotate up the top 'N' objects of the stack. 'N' is on top of the stack and is consumed by 'roll'.

Specified by:

roll in interface WarpScriptStack

Throws:

InformativeEmptyStackException - if the stack is empty.

java.lang.IndexOutOfBoundsException - if 'N' is not present on top of the stack, is not a number or if the stack does not have enough elements for the operation.

java.util.EmptyStackException

peekn

public java.lang.Object peekn()
                       throws WarpScriptException

Description copied from interface: WarpScriptStack

Return the object at 'distance' from the top of the stack. The 'distance' is on top of the stack and is consumed by 'peekn'. The object on top the stack is at distance 0.

Specified by:

peekn in interface WarpScriptStack

Throws:

WarpScriptException - if no valid 'distance' is on top of the stack or if the requested distance is passed the bottom of the stack.

get

public java.lang.Object get(int n)
                     throws WarpScriptException

Description copied from interface: WarpScriptStack

Return the object at level 'level' on the stack. The top of the stack is level 0

Specified by:

get in interface WarpScriptStack

Parameters:

n - Level of the object to return

Returns:

The object found at 'level'

Throws:

WarpScriptException - if the stack contains less than 'level' levels

auditMode

public void auditMode(boolean auditMode)

Turn on/off auditMode. In auditMode, macros contains special statements with line numbers or WarpScript parsing errors. Parsing errors are also stored into ATTRIBUTE_PARSING_ERRORS stack attribute, to avoid walking in macros. auditMode exits after the closing the first last macro level, leaving on stack a macro object.

Specified by:

auditMode in interface WarpScriptStack

execMulti

public void execMulti(java.lang.String script)
               throws WarpScriptException

Specified by:

execMulti in interface WarpScriptStack

Throws:

WarpScriptException

exec

public void exec(java.lang.String line)
          throws WarpScriptException

Description copied from interface: WarpScriptStack

Execute a serie of statements against the stack.

Specified by:

exec in interface WarpScriptStack

Parameters:

line - String containing a space separated list of statements to execute

Throws:

WarpScriptException

exec

public void exec(java.lang.String line,
                 long lineNumber)
          throws WarpScriptException

Description copied from interface: WarpScriptStack

Execute a series of statements against the stack.

Specified by:

exec in interface WarpScriptStack

Parameters:

line - String containing a space separated list of statements to execute

lineNumber - is the WarpScript line number, when known by exec() caller. Default value is -1.

Throws:

WarpScriptException

exec

public void exec(WarpScriptStack.Macro macro)
          throws WarpScriptException

Description copied from interface: WarpScriptStack

Execute a macro against the stack.

Specified by:

exec in interface WarpScriptStack

Parameters:

macro - Macro instance to execute

Throws:

WarpScriptException

findFunction

public java.lang.Object findFunction(java.lang.String stmt)
                              throws WarpScriptException

Description copied from interface: WarpScriptStack

Find a function by name

Specified by:

findFunction in interface WarpScriptStack

Parameters:

stmt - Name of function to find

Throws:

WarpScriptException - if macro is not found

run

public void run(java.lang.String symbol)
         throws WarpScriptException

Description copied from interface: WarpScriptStack

Execute a macro known by name.

Specified by:

run in interface WarpScriptStack

Throws:

WarpScriptException

find

public WarpScriptStack.Macro find(java.lang.String symbol)
                           throws WarpScriptException

Description copied from interface: WarpScriptStack

Find a macro by name

Specified by:

find in interface WarpScriptStack

Parameters:

symbol - Name of macro to find

Throws:

WarpScriptException - if macro is not found

dump

public java.lang.String dump(int n)

Description copied from interface: WarpScriptStack

Produces a String representation of the top 'n' levels of the stack

Specified by:

dump in interface WarpScriptStack

Parameters:

n - Number of stack levels to display at most

pick

public void pick()
          throws java.util.EmptyStackException,
                 java.lang.IndexOutOfBoundsException,
                 WarpScriptException

Description copied from interface: WarpScriptStack

Copy the object at level 'N' on top of the stack. 'N' is on top of the stack and is consumed by the call to 'pick'.

Specified by:

pick in interface WarpScriptStack

Throws:

InformativeEmptyStackException

java.lang.IndexOutOfBoundsException

java.util.EmptyStackException

WarpScriptException

rolld

public void rolld()
           throws java.util.EmptyStackException,
                  java.lang.IndexOutOfBoundsException

Description copied from interface: WarpScriptStack

Rotate down the top 'N' objects of the stack. 'N' is on the top of the stack and is consumed by 'rolld'.

Specified by:

rolld in interface WarpScriptStack

Throws:

InformativeEmptyStackException - if the stack is empty

java.lang.IndexOutOfBoundsException - if 'N' is not present on top of the stack, is not a number or if the stack does not have enough elements for the operation.

java.util.EmptyStackException

load

public java.lang.Object load(java.lang.String symbol)

Description copied from interface: WarpScriptStack

Return the content associated with the given symbol.

Specified by:

load in interface WarpScriptStack

Parameters:

symbol - Name of symbol to retrieve

Returns:

The content associated with 'symbol' or null if 'symbol' is not known.

store

public void store(java.lang.String symbol,
                  java.lang.Object value)
           throws WarpScriptException

Description copied from interface: WarpScriptStack

Store the given object under 'symbol'.

Specified by:

store in interface WarpScriptStack

Parameters:

symbol - Name under which to store a value.

value - Value to store.

Throws:

WarpScriptException

load

public java.lang.Object load(int regidx)
                      throws WarpScriptException

Description copied from interface: WarpScriptStack

Return the content associated with the given register

Specified by:

load in interface WarpScriptStack

Parameters:

regidx - Index of the register to read

Returns:

The content of the given register or null if the register is not set or does not exist

Throws:

WarpScriptException

store

public void store(int regidx,
                  java.lang.Object value)
           throws WarpScriptException

Description copied from interface: WarpScriptStack

Stores the given value in register 'regidx'

Specified by:

store in interface WarpScriptStack

Throws:

WarpScriptException

forget

public void forget(java.lang.String symbol)

Description copied from interface: WarpScriptStack

Forget the given symbol

Specified by:

forget in interface WarpScriptStack

Parameters:

symbol - Name of the symbol to forget.

getSymbolTable

public java.util.Map<java.lang.String,java.lang.Object> getSymbolTable()

Description copied from interface: WarpScriptStack

Return the current symbol table.

Specified by:

getSymbolTable in interface WarpScriptStack

getRegisters

public java.lang.Object[] getRegisters()

Description copied from interface: WarpScriptStack

Return the current registers.

Specified by:

getRegisters in interface WarpScriptStack

getDefined

public java.util.Map<java.lang.String,WarpScriptStackFunction> getDefined()

Description copied from interface: WarpScriptStack

Return the current map of redefined functions

Specified by:

getDefined in interface WarpScriptStack

getUUID

public java.lang.String getUUID()

Description copied from interface: WarpScriptStack

Return a UUID for the instance of WarpScriptStack

Specified by:

getUUID in interface WarpScriptStack

setAttribute

public java.lang.Object setAttribute(java.lang.String key,
                                     java.lang.Object value)

Description copied from interface: WarpScriptStack

Set a stack attribute.

Specified by:

setAttribute in interface WarpScriptStack

Parameters:

key - Key under which the attribute should be stored.

value - Value of the attribute. If null, remove the attribute.

Returns:

The previous value of the attribute or null if it was not set.

getAttribute

public java.lang.Object getAttribute(java.lang.String key)

Description copied from interface: WarpScriptStack

Return the value of an attribute.

Specified by:

getAttribute in interface WarpScriptStack

Parameters:

key - Name of the attribute to retrieve.

Returns:

The value associated with 'key' or null

incOps

public void incOps()
            throws WarpScriptException

Increment the operation count and check for limit. We do not need to be synchronized since the stack is called by a single thread

Throws:

WarpScriptException

checkOps

public void checkOps()
              throws WarpScriptException

Throws:

WarpScriptException

getCounter

public java.util.concurrent.atomic.AtomicLong getCounter(int i)
                                                  throws WarpScriptException

Description copied from interface: WarpScriptStack

Return the ith counter associated with the stack

Specified by:

getCounter in interface WarpScriptStack

Throws:

WarpScriptException

progress

public void progress()

Specified by:

progress in interface org.apache.hadoop.util.Progressable

checkBalanced

public void checkBalanced()
                   throws WarpScriptException

Description copied from interface: WarpScriptStack

Perform a final check to ensure balancing constructs are balanced.

Specified by:

checkBalanced in interface WarpScriptStack

Throws:

WarpScriptException - if the stack is currently unbalanced.

define

public void define(java.lang.String stmt,
                   WarpScriptStack.Macro macro)

(re)define a statement If 'macro' is null, clear the (re)definition of 'stmt'

Specified by:

define in interface WarpScriptStack

save

public void save()
          throws WarpScriptException

Description copied from interface: WarpScriptStack

Push the current stack context (symbols + redefined statements) onto the stack.

Specified by:

save in interface WarpScriptStack

Throws:

WarpScriptException

restore

public void restore(WarpScriptStack.StackContext ctxt)
             throws WarpScriptException

Description copied from interface: WarpScriptStack

Restore the given stack context

Specified by:

restore in interface WarpScriptStack

Throws:

WarpScriptException

restore

public void restore()
             throws WarpScriptException

Description copied from interface: WarpScriptStack

Restore the stack context from that on top of the stack

Specified by:

restore in interface WarpScriptStack

Throws:

WarpScriptException

recurseIn

protected void recurseIn()
                  throws WarpScriptException

Throws:

WarpScriptException

recurseOut

protected void recurseOut()

getRecursionLevel

public long getRecursionLevel()

getMacroDepth

public int getMacroDepth()

isInMultiline

public boolean isInMultiline()

isInComment

public boolean isInComment()

isInSecureScript

public boolean isInSecureScript()

getSubStack

public MemoryWarpScriptStack getSubStack()

Create a 'sub' stack of the current one. A substack will share a certain number of elements with its parent stack.

signal

public void signal(WarpScriptStack.Signal signal)

Description copied from interface: WarpScriptStack

Signal the stack, i.e. stop the currently executing code after the current statement and prevent further executions.

Specified by:

signal in interface WarpScriptStack

handleSignal

public void handleSignal()
                  throws WarpScriptATCException

Description copied from interface: WarpScriptStack

Throw the exception associated with the current signal sent to the stack

Specified by:

handleSignal in interface WarpScriptStack

Throws:

WarpScriptATCException

setFunctionMetrics

public void setFunctionMetrics(boolean state)

hide

public int hide()

Description copied from interface: WarpScriptStack

Hide all stack levels

Specified by:

hide in interface WarpScriptStack

Returns:

The number of levels actually hidden

hide

public int hide(int count)

Description copied from interface: WarpScriptStack

Hide the deepest 'count' stack levels

Specified by:

hide in interface WarpScriptStack

Parameters:

count - Number of levels to hide

Returns:

The number of levels actually hidden

show

public void show()

Description copied from interface: WarpScriptStack

Show all previously hidden stack levels.

Specified by:

show in interface WarpScriptStack

show

public void show(int count)

Description copied from interface: WarpScriptStack

Show some stack levels previously hidden. Up to 'count' levels previously hidden will be made visible. Those 'count' levels are the less deep of the hidden ones.

Specified by:

show in interface WarpScriptStack

Parameters:

count - Number of levels to show

macroOpen

public void macroOpen()
               throws WarpScriptException

Description copied from interface: WarpScriptStack

Force the stack to create a macro with all following statements. The macro will be pushed onto the stack when macroClose is called. Calling this function multiple times without calling macroClose in between will throw an exception.

Specified by:

macroOpen in interface WarpScriptStack

Throws:

WarpScriptException

macroClose

public void macroClose()
                throws WarpScriptException

Description copied from interface: WarpScriptStack

Closes the currently open macro (after macroOpen was called) and push it onto the stack. If macroOpen was not previously called, this function has no effect.

Specified by:

macroClose in interface WarpScriptStack

Throws:

WarpScriptException