Package org.locationtech.jts.util

Class Debug

java.lang.Object

org.locationtech.jts.util.Debug

public class Debug
extends java.lang.Object

Provides routines to simplify and localize debugging output. Debugging is controlled via a Java system property value. If the system property with the name given in DEBUG_PROPERTY_NAME (currently "jts.debug") has the value "on" or "true" debugging is enabled. Otherwise, debugging is disabled. The system property can be set by specifying the following JVM option:

 -Djts.debug=on
 

Version:

1.7

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	Debug.SegmentFindingFilter

Field Summary

Fields

Modifier and Type	Field	Description
private java.lang.Object[]	args
private static Debug	debug
private static java.lang.String	DEBUG_LINE_TAG
static java.lang.String	DEBUG_PROPERTY_NAME
static java.lang.String	DEBUG_PROPERTY_VALUE_ON
static java.lang.String	DEBUG_PROPERTY_VALUE_TRUE
private static boolean	debugOn
private static GeometryFactory	fact
private static long	lastTimePrinted
private java.io.PrintStream	out
private java.lang.Class[]	printArgs
private static Stopwatch	stopwatch
private java.lang.Object	watchObj

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Debug()

Method Summary

Modifier and Type	Method	Description
static void	addWatch(java.lang.Object obj)	Adds an object to be watched.
static void	breakIf(boolean cond)
static void	breakIfEqual(java.lang.Object o1, java.lang.Object o2)
static void	breakIfEqual(Coordinate p0, Coordinate p1, double tolerance)
private static void	doBreak()
static boolean	equals(Coordinate c1, Coordinate c2, double tolerance)
private static java.lang.String	formatField(java.lang.String s, int fieldLen)
static boolean	hasSegment(Geometry geom, Coordinate p0, Coordinate p1)
private void	instanceAddWatch(java.lang.Object obj)
void	instancePrint(java.lang.Object obj)
private void	instancePrint(java.lang.String str)
void	instancePrint(java.util.Iterator it)
void	instancePrintIfWatch(java.lang.Object obj)
void	instancePrintObject(java.lang.Object obj)
void	instancePrintWatch()
static boolean	isDebugging()
static void	main(java.lang.String[] args)	Prints the status of debugging to System.out
static void	print(boolean isTrue, java.lang.Object obj)
static void	print(java.lang.Object obj)
static void	print(java.lang.String str)
static void	printIfWatch(java.lang.Object obj)
void	println()
static void	println(java.lang.Object obj)
static void	printTime(java.lang.String tag)
static void	printWatch()
static void	resetTime()
private static java.lang.String	spaces(int n)
static LineString	toLine(Coordinate p0, Coordinate p1)
static LineString	toLine(Coordinate p0, Coordinate p1, Coordinate p2)
static LineString	toLine(Coordinate p0, Coordinate p1, Coordinate p2, Coordinate p3)

Methods inherited from class java.lang.Object

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

Field Detail

DEBUG_PROPERTY_NAME

public static java.lang.String DEBUG_PROPERTY_NAME

DEBUG_PROPERTY_VALUE_ON

public static java.lang.String DEBUG_PROPERTY_VALUE_ON

DEBUG_PROPERTY_VALUE_TRUE

public static java.lang.String DEBUG_PROPERTY_VALUE_TRUE

debugOn

private static boolean debugOn

stopwatch

private static Stopwatch stopwatch

lastTimePrinted

private static long lastTimePrinted

debug

private static final Debug debug

fact

private static final GeometryFactory fact

DEBUG_LINE_TAG

private static final java.lang.String DEBUG_LINE_TAG

See Also:

Constant Field Values

out

private java.io.PrintStream out

printArgs

private java.lang.Class[] printArgs

watchObj

private java.lang.Object watchObj

args

private java.lang.Object[] args

Constructor Detail

Debug

private Debug()

Method Detail

main

public static void main(java.lang.String[] args)

Prints the status of debugging to System.out

Parameters:

args - the cmd-line arguments (no arguments are required)

isDebugging

public static boolean isDebugging()

toLine

public static LineString toLine(Coordinate p0,
                                Coordinate p1)

toLine

public static LineString toLine(Coordinate p0,
                                Coordinate p1,
                                Coordinate p2)

toLine

public static LineString toLine(Coordinate p0,
                                Coordinate p1,
                                Coordinate p2,
                                Coordinate p3)

print

public static void print(java.lang.String str)

print

public static void print(java.lang.Object obj)

print

public static void print(boolean isTrue,
                         java.lang.Object obj)

println

public static void println(java.lang.Object obj)

resetTime

public static void resetTime()

printTime

public static void printTime(java.lang.String tag)

formatField

private static java.lang.String formatField(java.lang.String s,
                                            int fieldLen)

spaces

private static java.lang.String spaces(int n)

equals

public static boolean equals(Coordinate c1,
                             Coordinate c2,
                             double tolerance)

addWatch

public static void addWatch(java.lang.Object obj)

Adds an object to be watched. A watched object can be printed out at any time. Currently only supports one watched object at a time.

Parameters:

obj -

printWatch

public static void printWatch()

printIfWatch

public static void printIfWatch(java.lang.Object obj)

breakIf

public static void breakIf(boolean cond)

breakIfEqual

public static void breakIfEqual(java.lang.Object o1,
                                java.lang.Object o2)

breakIfEqual

public static void breakIfEqual(Coordinate p0,
                                Coordinate p1,
                                double tolerance)

doBreak

private static void doBreak()

hasSegment

public static boolean hasSegment(Geometry geom,
                                 Coordinate p0,
                                 Coordinate p1)

instancePrintWatch

public void instancePrintWatch()

instancePrintIfWatch

public void instancePrintIfWatch(java.lang.Object obj)

instancePrint

public void instancePrint(java.lang.Object obj)

instancePrint

public void instancePrint(java.util.Iterator it)

instancePrintObject

public void instancePrintObject(java.lang.Object obj)

println

public void println()

instanceAddWatch

private void instanceAddWatch(java.lang.Object obj)

instancePrint

private void instancePrint(java.lang.String str)