| java.lang.Object
 st.ata.util.X
| X | | final public class X (Code) | | A collection of useful static methods.
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| Field Summary | |
| final public static int | DEBUG
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| Method Summary | |
| public static void | check(boolean b)
Throws a runtime exception if b is not true. | | public static void | check(boolean b, String m)
Throws a runtime exception if b is not true. | | public static void | checkargs(boolean b)
Throws an illegal argument exception if b is not true. | | public static void | checkstate(boolean b)
Throws an illegal state exception if b is not true. | | public static int | decodeInt(byte[] buf, int offset)
| | public static long | decodeLong(byte[] buf, int offset)
| | public static int | decodeShort(byte[] buf, int offset)
| | public static ArrayList | dupElim(ArrayList al, Comparator cm)
| | public static void | encodeInt(byte[] buf, int offset, int val)
| | public static void | encodeLong(byte[] buf, int offset, long val)
| | public static void | encodeShort(byte[] buf, int offset, int val)
| | public static void | fail(String m)
Throws a runtime exception with message m. | | public static String | getFullDescription(Throwable t)
Returns a full description of a
Throwable . | | public static void | log(String ctxt, Level level, String msg, Throwable t)
| | public static void | log(String ctxt, Level level, String msg)
| | public static void | noimpl()
| | public static void | popTrace(Throwable t, int n)
Removes the top n stack-trace elements from
t. | | public static void | printArgs(String programName, String[] args)
| | public static String | printable(byte[] data)
returns the printable representation of data
after escaping non-printable characters in C style. | | public static String | printable(byte[] data, int start, int end)
returns the printable representation of data
from start (inclusive) to end (exclusive). | | public static void | testFailure(String systemProperty)
Throws a runtime exception with message systemProperty. | | public static RuntimeException | toRTE(Exception e)
Returns an
UndeclaredThrowableException wrapping e. | | public static void | ut(boolean b)
Same as ut(b, ""). | | public static void | ut(boolean b, String m)
Test condition during unit testing. |
| DEBUG | | final public static int DEBUG(Code) | | |
| check | | public static void check(boolean b)(Code) | | Throws a runtime exception if b is not true.
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| check | | public static void check(boolean b, String m)(Code) | | Throws a runtime exception if b is not true.
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| checkargs | | public static void checkargs(boolean b)(Code) | | Throws an illegal argument exception if b is not true.
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| checkstate | | public static void checkstate(boolean b)(Code) | | Throws an illegal state exception if b is not true.
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| decodeInt | | public static int decodeInt(byte[] buf, int offset)(Code) | | |
| decodeLong | | public static long decodeLong(byte[] buf, int offset)(Code) | | |
| decodeShort | | public static int decodeShort(byte[] buf, int offset)(Code) | | |
| encodeInt | | public static void encodeInt(byte[] buf, int offset, int val)(Code) | | |
| encodeLong | | public static void encodeLong(byte[] buf, int offset, long val)(Code) | | |
| encodeShort | | public static void encodeShort(byte[] buf, int offset, int val)(Code) | | |
| fail | | public static void fail(String m)(Code) | | Throws a runtime exception with message m.
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| getFullDescription | | public static String getFullDescription(Throwable t)(Code) | | Returns a full description of a
Throwable . This full
description includes a stack trace. This method will never
throw an error or exception: if something bad happens, it
simply returns null.
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| noimpl | | public static void noimpl()(Code) | | |
| popTrace | | public static void popTrace(Throwable t, int n)(Code) | | Removes the top n stack-trace elements from
t. This is useful inside methods like
X.fail to help debuggers more quickly identify the location of
a failure.
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| printArgs | | public static void printArgs(String programName, String[] args)(Code) | | print out the programName and arguments used
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| printable | | public static String printable(byte[] data)(Code) | | returns the printable representation of data
after escaping non-printable characters in C style.
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| printable | | public static String printable(byte[] data, int start, int end)(Code) | | returns the printable representation of data
from start (inclusive) to end (exclusive).
after escaping non-printable characters in C style.
data may not be null and
start must be smaller or equal to end
Both start and end are bounded by
0 and data.length bot inclusive.
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| testFailure | | public static void testFailure(String systemProperty)(Code) | | Throws a runtime exception with message systemProperty.
Parameters:
systemProperty - a String value which specifiesa boolean system property, which if true will causean exception to be thrown. |
| ut | | public static void ut(boolean b)(Code) | | Same as ut(b, "").
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| ut | | public static void ut(boolean b, String m)(Code) | | Test condition during unit testing. If b is true, does
nothing. If b is not true, prints (to
System.out)
"Unit test failure: " + m and
a stack trace then returns.
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