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java.lang.Objectorg.asteriskjava.util.AstUtil
public class AstUtil
Some static utility methods to imitate Asterisk specific logic.
See Asterisk'sutil.c
.
Client code is not supposed to use this class.
Method Summary | |
---|---|
static boolean |
isNull(java.lang.Object s)
Checks if the value of s was null in Asterisk. |
static boolean |
isTrue(java.lang.Object o)
Checks if a String represents true or false
according to Asterisk's logic. |
static java.lang.String[] |
parseCallerId(java.lang.String s)
Parses a string for caller id information. |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
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public static boolean isTrue(java.lang.Object o)
true
or false
according to Asterisk's logic.
The original implementation is util.c
is as follows:
int ast_true(const char *s) { if (!s || ast_strlen_zero(s)) return 0; if (!strcasecmp(s, "yes") || !strcasecmp(s, "true") || !strcasecmp(s, "y") || !strcasecmp(s, "t") || !strcasecmp(s, "1") || !strcasecmp(s, "on")) return -1; return 0; }To support the dnd property of
ZapShowChannelsEvent
this method
also consideres the string "Enabled" as true.
o
- the Object (usually a String) to check for true
.
true
if s represents true
,
false
otherwise.public static java.lang.String[] parseCallerId(java.lang.String s)
"Some Name" <1234>
.
This resembles ast_callerid_parse
in
callerid.c
but strips any whitespace.
s
- the string to parse
public static boolean isNull(java.lang.Object s)
null
in Asterisk.
This method is useful as Asterisk likes to replace null
values with different string values like "unknown", "<unknown>"
or "<null>".
To find such replacements search for S_OR
in Asterisk's
source code. You will find things like
S_OR(chan->cid.cid_num, "<unknown>") fdprintf(fd, "agi_callerid: %s\n", S_OR(chan->cid.cid_num, "unknown"));and more...
s
- the string to test, may be null
. If s is not a string
the only test that is performed is a check for null
.
true
if the s was null
in Asterisk;
false
otherwise.
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