/**
* Processes a change in the contents of the filter widget.
*
* @param inValue a <code>String</code> value containing the text of the filter widget
*/
protected final void handleFilter(String inValue) {
// inValue contains the full text of what the user entered in the filter widget, e.g. Side=B
if (inValue.length() > 0) {
// some filter value has been entered, process that value
Matcher regexMatcher = mFilterPattern.matcher(inValue);
// if the value is meaningful, continue, otherwise, exit and do nothing (no filtering changes)
if (regexMatcher.matches()) {
// the first match of the regex must be the field against which to match
String fieldSpecifier = regexMatcher.group(1);
try {
// the second is the operator (either '=' or '~=' as dictated by the regex pattern)
String operator = regexMatcher.group(2);
// the third is the value to match
String value = regexMatcher.group(3);
// the field name may be one that we've translated to a shorter or more readable version
// try to translate it back first
String fieldNameToUse = FIXFieldLocalizer.readFIXFieldNameFromCache(fieldSpecifier);
// dig out the field object indicated by the fieldSpecified (a failure will throw a
// CoreException)
Field<?> fixField = FIXMessageUtil.getQuickFixFieldFromName(fieldNameToUse);
// this is the int value of the FIX field which we now know is valid
int fixFieldInt = fixField.getField();
// create a matcher depending on the operator entered by the user
if ("=".equals(operator)) { // $NON-NLS-1$
// use a straight string matcher
getFilterMatcherEditor().setMatcher(createStringMatcher(fixFieldInt, value));
} else {
// use a regex matcher
assert "~=".equals(operator); // $NON-NLS-1$
getFilterMatcherEditor().setMatcher(createRegexMatcher(fixFieldInt, value));
}
} catch (Throwable t) {
PhotonPlugin.getMainConsoleLogger().error(UNRECOGNIZED_FIELD.getText(fieldSpecifier));
}
}
} else {
// the value entered by the user is of zero length, use the default matcher
getFilterMatcherEditor().setMatcher(getDefaultMatcher());
}
}
