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Collecting now all chars that should be added to part in a StringBuilder which seems to be the fastest solution

This commit is contained in:
dankito 2020-05-20 17:23:05 +02:00
parent 40c5d64103
commit b93ce1ca0d
1 changed files with 22 additions and 48 deletions
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70
fints4k/src/main/kotlin/net/dankito/banking/fints/response/ResponseParser.kt
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@ -43,7 +43,7 @@ open class ResponseParser @JvmOverloads constructor(
open fun parse(response: String): Response {
try {
val segments = splitIntoPartsAndUnmask(response, Separators.SegmentSeparator).toMutableList()
val segments = splitIntoPartsAndUnmask(response, Separators.SegmentSeparatorChar).toMutableList()
extractSegmentEmbeddedInEncryptedData(segments)
@ -76,7 +76,7 @@ open class ResponseParser @JvmOverloads constructor(
protected open fun parseSegment(segment: String): ReceivedSegment? {
try {
if (segment.isNotEmpty()) { // filter out empty lines
val dataElementGroups = splitIntoPartsAndUnmaskCharByChar(segment, Separators.DataElementGroupsSeparatorChar)
val dataElementGroups = splitIntoPartsAndUnmask(segment, Separators.DataElementGroupsSeparatorChar)
val segmentId = segment.substring(0, segment.indexOf(Separators.DataElementsSeparator))
@ -715,7 +715,7 @@ open class ResponseParser @JvmOverloads constructor(
}
protected open fun getDataElements(dataElementGroup: String): List<String> {
return splitIntoPartsAndUnmaskCharByChar(dataElementGroup, Separators.DataElementsSeparatorChar)
return splitIntoPartsAndUnmask(dataElementGroup, Separators.DataElementsSeparatorChar)
}
/**
@ -728,69 +728,43 @@ open class ResponseParser @JvmOverloads constructor(
*
* Also binary data shouldn't be taken into account.
*/
protected open fun splitIntoPartsAndUnmask(dataString: String, separator: String): List<String> {
val separatorIndices = messageUtils.findSeparatorIndices(dataString, separator)
var startIndex = 0
val elements = separatorIndices.map { endIndex ->
val element = dataString.substring(startIndex, endIndex)
startIndex = endIndex + 1
element
}.toMutableList()
if (startIndex < dataString.length) {
elements.add(dataString.substring(startIndex))
}
val maskedSeparator = Separators.MaskingCharacter + separator
return elements.map {
if (it.contains(maskedSeparator)) it.replace(maskedSeparator, separator)
else it
}
}
protected open fun splitIntoPartsAndUnmaskCharByChar(dataString: String, separator: Char): List<String> {
protected open fun splitIntoPartsAndUnmask(dataString: String, separator: Char): List<String> {
val binaryRanges = messageUtils.findBinaryDataRanges(dataString)
var lastEndIndex = 0
var partContainsMaskedSeparators = false
val parts = mutableListOf<String>()
var part = StringBuilder()
for (i in dataString.indices) {
val char = dataString[i]
if (char == separator && messageUtils.isInRange(i, binaryRanges) == false) {
if (dataString[i - 1] != Separators.MaskingCharacterChar) {
parts.add(extractPart(dataString, lastEndIndex, i, separator, partContainsMaskedSeparators))
if (isSeparator(char, dataString, separator, i, binaryRanges)) {
parts.add(part.toString())
lastEndIndex = i + 1
partContainsMaskedSeparators = false
part = StringBuilder()
}
}
else if (char == Separators.MaskingCharacterChar && messageUtils.isInRange(i, binaryRanges) == false && i + 1 < dataString.length && dataString[i + 1] == separator) {
partContainsMaskedSeparators = true
else if (isNotMaskingCharacter(char, dataString, separator, i, binaryRanges)) {
part.append(char)
}
}
if (lastEndIndex != dataString.length) {
parts.add(extractPart(dataString, lastEndIndex, dataString.length, separator, partContainsMaskedSeparators))
if (part.isNotEmpty()) {
parts.add(part.toString())
}
return parts
}
protected open fun extractPart(dataString: String, startIndex: Int, lastEndIndex: Int, separator: Char,
partContainsMaskedSeparators: Boolean): String {
val part = dataString.substring(startIndex, lastEndIndex)
if (partContainsMaskedSeparators) {
return part.replace(Separators.MaskingCharacter + separator, separator.toString())
}
else {
return part
protected open fun isSeparator(char: Char, dataString: String, separator: Char, index: Int, binaryRanges: List<IntRange>): Boolean {
return char == separator
&& (index == 0 || dataString[index - 1] != Separators.MaskingCharacterChar)
&& messageUtils.isInRange(index, binaryRanges) == false
}
protected open fun isNotMaskingCharacter(char: Char, dataString: String, separator: Char, index: Int, binaryRanges: List<IntRange>): Boolean {
return char != Separators.MaskingCharacterChar
|| index + 1 >= dataString.length
|| dataString[index + 1] != separator
|| messageUtils.isInRange(index, binaryRanges)
}