fun parse()

in src/main/kotlin/org/opensearch/indexmanagement/rollup/model/ISMRollup.kt [148:198]
47 lines of code
4 McCabe index (conditional complexity)

        fun parse(
            xcp: XContentParser
        ): ISMRollup {
            var description = ""
            var targetIndex = ""
            var pageSize = 0
            val dimensions = mutableListOf<Dimension>()
            val metrics = mutableListOf<RollupMetrics>()

            XContentParserUtils.ensureExpectedToken(XContentParser.Token.START_OBJECT, xcp.currentToken(), xcp)

            while (xcp.nextToken() != XContentParser.Token.END_OBJECT) {
                val fieldName = xcp.currentName()
                xcp.nextToken()

                when (fieldName) {
                    Rollup.DESCRIPTION_FIELD -> description = xcp.text()
                    Rollup.TARGET_INDEX_FIELD -> targetIndex = xcp.text()
                    Rollup.PAGE_SIZE_FIELD -> pageSize = xcp.intValue()
                    Rollup.DIMENSIONS_FIELD -> {
                        XContentParserUtils.ensureExpectedToken(
                            XContentParser.Token.START_ARRAY,
                            xcp.currentToken(),
                            xcp
                        )
                        while (xcp.nextToken() != XContentParser.Token.END_ARRAY) {
                            dimensions.add(Dimension.parse(xcp))
                        }
                    }
                    Rollup.METRICS_FIELD -> {
                        XContentParserUtils.ensureExpectedToken(
                            XContentParser.Token.START_ARRAY,
                            xcp.currentToken(),
                            xcp
                        )
                        while (xcp.nextToken() != XContentParser.Token.END_ARRAY) {
                            metrics.add(RollupMetrics.parse(xcp))
                        }
                    }
                    else -> throw IllegalArgumentException("Invalid field, [$fieldName] not supported in ISM Rollup.")
                }
            }

            return ISMRollup(
                description = description,
                pageSize = pageSize,
                dimensions = dimensions,
                metrics = metrics,
                targetIndex = targetIndex
            )
        }