mirror of
https://github.com/atsunatsu/Look4Sat.git
synced 2026-10-02 03:15:37 +00:00
Added DataParser.kt with tests, removed unused classes
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Arty Bishop committed
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commit
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19 files changed
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-346
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@@ -13,6 +13,7 @@ tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).all {
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dependencies {
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implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutines_version"
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implementation "org.json:json:$json_version"
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testImplementation "junit:junit:$junit_version"
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testImplementation "org.mockito:mockito-core:$mockito_version"
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@@ -17,9 +17,9 @@
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*/
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package com.rtbishop.look4sat.data
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import com.rtbishop.look4sat.domain.DataParser
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import com.rtbishop.look4sat.domain.DataRepository
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import com.rtbishop.look4sat.domain.model.SatEntry
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import com.rtbishop.look4sat.domain.predict.TLE
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import kotlinx.coroutines.CoroutineDispatcher
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import kotlinx.coroutines.coroutineScope
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import kotlinx.coroutines.launch
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@@ -28,6 +28,7 @@ import java.io.InputStream
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import java.util.zip.ZipInputStream
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class DefaultRepository(
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private val dataParser: DataParser,
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private val localSource: LocalDataSource,
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private val remoteSource: RemoteDataSource,
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private val repoDispatcher: CoroutineDispatcher
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@@ -66,20 +67,20 @@ class DefaultRepository(
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val streams = mutableListOf<InputStream>()
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val entries = mutableListOf<SatEntry>()
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sources.forEach { source ->
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remoteSource.fetchFileStream(source)?.let { stream ->
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if (source.contains(".zip", true)) {
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val zipStream = ZipInputStream(stream).apply { nextEntry }
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streams.add(zipStream)
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} else {
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streams.add(stream)
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}
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val fileStream = remoteSource.fetchFileStream(source)
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if (source.contains(".zip", true)) {
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val zipStream = ZipInputStream(fileStream).apply { nextEntry }
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streams.add(zipStream)
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} else {
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streams.add(fileStream)
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}
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}
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streams.forEach { stream -> entries.addAll(importSatellites(stream)) }
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localSource.updateEntries(entries)
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}
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launch(repoDispatcher) {
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val transmitters = remoteSource.fetchTransmitters(transmittersSource)
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val jsonStream = remoteSource.fetchFileStream(transmittersSource)
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val transmitters = dataParser.parseJSONStream(jsonStream)
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localSource.updateTransmitters(transmitters)
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}
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}
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@@ -89,7 +90,7 @@ class DefaultRepository(
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localSource.updateSelection(catnums, isSelected)
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}
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private fun importSatellites(stream: InputStream): List<SatEntry> {
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return TLE.parseTleStream(stream).map { tle -> SatEntry(tle) }
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private suspend fun importSatellites(stream: InputStream): List<SatEntry> {
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return dataParser.parseTLEStream(stream).map { tle -> SatEntry(tle) }
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}
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}
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@@ -17,12 +17,9 @@
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*/
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package com.rtbishop.look4sat.data
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import com.rtbishop.look4sat.domain.model.Transmitter
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import java.io.InputStream
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interface RemoteDataSource {
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suspend fun fetchFileStream(url: String): InputStream?
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suspend fun fetchTransmitters(url: String): List<Transmitter>
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suspend fun fetchFileStream(fileUrl: String): InputStream
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}
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@@ -0,0 +1,150 @@
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/*
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* Look4Sat. Amateur radio satellite tracker and pass predictor.
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* Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package com.rtbishop.look4sat.domain
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import com.rtbishop.look4sat.domain.model.Transmitter
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import com.rtbishop.look4sat.domain.predict.TLE
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import kotlinx.coroutines.CoroutineDispatcher
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import kotlinx.coroutines.withContext
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import org.json.JSONArray
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import org.json.JSONObject
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import java.io.InputStream
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import java.text.SimpleDateFormat
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import java.util.*
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import kotlin.math.pow
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class DataParser(private val parserDispatcher: CoroutineDispatcher) {
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private val calendar = Calendar.getInstance()
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private val simpleDateFormat = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss", Locale.US)
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suspend fun parseCSVStream(csvStream: InputStream): List<TLE> = withContext(parserDispatcher) {
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val parsedItems = mutableListOf<TLE>()
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csvStream.bufferedReader().useLines { lines ->
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lines.forEachIndexed { index, line ->
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if (index != 0) {
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val values = line.split(",")
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parseCSV(values)?.let { tle -> parsedItems.add(tle) }
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}
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}
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}
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return@withContext parsedItems
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}
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suspend fun parseTLEStream(tleStream: InputStream): List<TLE> = withContext(parserDispatcher) {
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val tleStrings = mutableListOf(String(), String(), String())
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val parsedItems = mutableListOf<TLE>()
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var lineIndex = 0
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tleStream.bufferedReader().forEachLine { line ->
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tleStrings[lineIndex] = line
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if (lineIndex < 2) {
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lineIndex++
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} else {
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val isLineOneValid = tleStrings[1].substring(0, 1) == "1"
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val isLineTwoValid = tleStrings[2].substring(0, 1) == "2"
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if (!isLineOneValid && !isLineTwoValid) return@forEachLine
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parseTLE(tleStrings)?.let { tle -> parsedItems.add(tle) }
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lineIndex = 0
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}
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}
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return@withContext parsedItems
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}
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suspend fun parseJSONStream(jsonStream: InputStream): List<Transmitter> {
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return withContext(parserDispatcher) {
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val parsedItems = mutableListOf<Transmitter>()
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try {
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val jsonArray = JSONArray(jsonStream.bufferedReader().readText())
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for (index in 0 until jsonArray.length()) {
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val jsonObject = jsonArray.getJSONObject(index)
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parseJSON(jsonObject)?.let { parsedItems.add(it) }
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}
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return@withContext parsedItems
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} catch (exception: Exception) {
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return@withContext parsedItems
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}
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}
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}
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private fun parseCSV(values: List<String>): TLE? {
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try {
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val name = values[0]
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calendar.time = simpleDateFormat.parse(values[2]) ?: Date()
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val year = calendar.get(Calendar.YEAR).toString().substring(2, 4)
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val day = calendar.get(Calendar.DAY_OF_YEAR)
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val hours = calendar.get(Calendar.HOUR_OF_DAY)
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val minutes = calendar.get(Calendar.MINUTE)
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val seconds = calendar.get(Calendar.SECOND)
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val fraction = ((hours * 60 * 60 + minutes * 60 + seconds) / 86400.0).toString()
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val epoch = "$year$day${fraction.substring(1, fraction.length)}".toDouble()
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val meanmo = values[3].toDouble()
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val eccn = values[4].toDouble()
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val incl = values[5].toDouble()
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val raan = values[6].toDouble()
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val argper = values[7].toDouble()
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val meanan = values[8].toDouble()
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val catnum = values[11].toInt()
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val bstar = values[14].toDouble()
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return TLE(name, epoch, meanmo, eccn, incl, raan, argper, meanan, catnum, bstar)
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} catch (exception: Exception) {
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return null
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}
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}
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private fun parseTLE(tle: List<String>): TLE? {
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if (tle[1].substring(0, 1) != "1" && tle[2].substring(0, 1) != "2") {
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return null
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}
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try {
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val name: String = tle[0].trim()
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val epoch: Double = tle[1].substring(18, 32).toDouble()
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val meanmo: Double = tle[2].substring(52, 63).toDouble()
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val eccn: Double = 1.0e-07 * tle[2].substring(26, 33).toDouble()
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val incl: Double = tle[2].substring(8, 16).toDouble()
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val raan: Double = tle[2].substring(17, 25).toDouble()
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val argper: Double = tle[2].substring(34, 42).toDouble()
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val meanan: Double = tle[2].substring(43, 51).toDouble()
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val catnum: Int = tle[1].substring(2, 7).trim().toInt()
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val bstar: Double = 1.0e-5 * tle[1].substring(53, 59).toDouble() /
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10.0.pow(tle[1].substring(60, 61).toDouble())
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return TLE(name, epoch, meanmo, eccn, incl, raan, argper, meanan, catnum, bstar)
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} catch (exception: Exception) {
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return null
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}
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}
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private fun parseJSON(json: JSONObject): Transmitter? {
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try {
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val uuid = json.getString("uuid")
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val info = json.getString("description")
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val isAlive = json.getBoolean("alive")
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val downlink = if (json.isNull("downlink_low")) null
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else json.getLong("downlink_low")
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val uplink = if (json.isNull("uplink_low")) null
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else json.getLong("uplink_low")
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val mode = if (json.isNull("mode")) null
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else json.getString("mode")
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val isInverted = json.getBoolean("invert")
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val catnum = if (json.isNull("norad_cat_id")) null
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else json.getInt("norad_cat_id")
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return Transmitter(uuid, info, isAlive, downlink, uplink, mode, isInverted, catnum)
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} catch (exception: Exception) {
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return null
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}
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}
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}
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@@ -1,31 +0,0 @@
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/*
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* Look4Sat. Amateur radio satellite tracker and pass predictor.
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* Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
|
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* the Free Software Foundation, either version 3 of the License, or
|
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package com.rtbishop.look4sat.domain.model
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data class OMM(
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val name: String,
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val epochString: String,
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val meanmo: Double,
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val eccn: Double,
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val incl: Double,
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val raan: Double,
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val argper: Double,
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val meanan: Double,
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val catnum: Int,
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val bstar: Double,
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)
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@@ -17,9 +17,6 @@
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*/
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package com.rtbishop.look4sat.domain.predict
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import java.io.InputStream
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import kotlin.math.pow
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data class TLE(
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val name: String,
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val epoch: Double,
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@@ -45,48 +42,4 @@ data class TLE(
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else -> NearEarthSat(this)
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}
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}
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companion object {
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fun parseTleStream(stream: InputStream): List<TLE> {
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val tleStrings = mutableListOf(String(), String(), String())
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val parsedItems = mutableListOf<TLE>()
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var lineIndex = 0
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stream.bufferedReader().forEachLine { line ->
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tleStrings[lineIndex] = line
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if (lineIndex < 2) {
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lineIndex++
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} else {
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val isLineOneValid = tleStrings[1].substring(0, 1) == "1"
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val isLineTwoValid = tleStrings[2].substring(0, 1) == "2"
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if (!isLineOneValid && !isLineTwoValid) return@forEachLine
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parseTleStrings(tleStrings)?.let { tle -> parsedItems.add(tle) }
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lineIndex = 0
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}
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}
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return parsedItems
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}
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private fun parseTleStrings(tleStrings: List<String>): TLE? {
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if (tleStrings[1].substring(0, 1) != "1" && tleStrings[2].substring(0, 1) != "2") {
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return null
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}
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try {
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val name: String = tleStrings[0].trim()
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val epoch: Double = tleStrings[1].substring(18, 32).toDouble()
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val meanmo: Double = tleStrings[2].substring(52, 63).toDouble()
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val eccn: Double = 1.0e-07 * tleStrings[2].substring(26, 33).toDouble()
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val incl: Double = tleStrings[2].substring(8, 16).toDouble()
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val raan: Double = tleStrings[2].substring(17, 25).toDouble()
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val argper: Double = tleStrings[2].substring(34, 42).toDouble()
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val meanan: Double = tleStrings[2].substring(43, 51).toDouble()
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val catnum: Int = tleStrings[1].substring(2, 7).trim().toInt()
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val bstar: Double = 1.0e-5 * tleStrings[1].substring(53, 59).toDouble() /
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10.0.pow(tleStrings[1].substring(60, 61).toDouble())
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return TLE(name, epoch, meanmo, eccn, incl, raan, argper, meanan, catnum, bstar)
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} catch (exception: Exception) {
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return null
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}
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}
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}
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}
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@@ -0,0 +1,89 @@
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/*
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* Look4Sat. Amateur radio satellite tracker and pass predictor.
|
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* Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
|
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*
|
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* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
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package com.rtbishop.look4sat
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import com.rtbishop.look4sat.domain.DataParser
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import kotlinx.coroutines.ExperimentalCoroutinesApi
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import kotlinx.coroutines.test.TestCoroutineDispatcher
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import kotlinx.coroutines.test.runBlockingTest
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import org.junit.Test
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@ExperimentalCoroutinesApi
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class DataParserTest {
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private val dataParser = DataParser(TestCoroutineDispatcher())
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private val validCSVStream = """
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OBJECT_NAME,OBJECT_ID,EPOCH,MEAN_MOTION,ECCENTRICITY,INCLINATION,RA_OF_ASC_NODE,ARG_OF_PERICENTER,MEAN_ANOMALY,EPHEMERIS_TYPE,CLASSIFICATION_TYPE,NORAD_CAT_ID,ELEMENT_SET_NO,REV_AT_EPOCH,BSTAR,MEAN_MOTION_DOT,MEAN_MOTION_DDOT
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CALSPHERE 1,1964-063C,2021-10-23T03:34:39.713664,13.73605115,.0026891,90.1713,36.6548,20.0176,64.9795,0,U,900,999,83808,.30972E-3,.299E-5,0
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""".trimIndent().byteInputStream()
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private val invalidCSVStream = """
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CALSPHERE 1,1964-063C,2021-10-23T03:34:39.713664,13.73605115,.0026891,90.1713,36.6548,20.0176,64.9795,0,U,900,999,83808,.30972E-3,.299E-5,0
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OBJECT_NAME,OBJECT_ID,EPOCH,MEAN_MOTION,ECCENTRICITY,INCLINATION,RA_OF_ASC_NODE,ARG_OF_PERICENTER,MEAN_ANOMALY,EPHEMERIS_TYPE,CLASSIFICATION_TYPE,NORAD_CAT_ID,ELEMENT_SET_NO,REV_AT_EPOCH,BSTAR,MEAN_MOTION_DOT,MEAN_MOTION_DDOT
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""".trimIndent().byteInputStream()
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private val validTLEStream = """
|
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ISS (ZARYA)
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1 25544U 98067A 21255.21005818 -.00120443 00000-0 -22592-2 0 9998
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2 25544 51.6451 272.4173 0002526 27.1693 64.4213 15.48396490302085
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""".trimIndent().byteInputStream()
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private val invalidTLEStream = """
|
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1 25544U 98067A 21255.21005818 -.00120443 00000-0 -22592-2 0 9998
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2 25544 51.6451 272.4173 0002526 27.1693 64.4213 15.48396490302085
|
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""".trimIndent().byteInputStream()
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private val validJSONStream = """
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[{"uuid":"UzPz4gcsNBPKPKAFPmer7g","description":"Upper side band (drifting)","alive":true,"type":"Transmitter","uplink_low":null,"uplink_high":null,"uplink_drift":null,"downlink_low":136658500,"downlink_high":null,"downlink_drift":null,"mode":"USB","mode_id":9,"uplink_mode":null,"invert":false,"baud":null,"sat_id":"SCHX-0895-2361-9925-0309","norad_cat_id":965,"status":"active","updated":"2019-04-18T05:39:53.343316Z","citation":"CITATION NEEDED - https://xkcd.com/285/","service":"Unknown","coordination":"","coordination_url":""}]
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""".trimIndent().byteInputStream()
|
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private val invalidJSONStream = """
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[{"description":"Upper side band (drifting)","alive":true,"type":"Transmitter","uplink_low":null,"uplink_high":null,"uplink_drift":null,"downlink_low":136658500,"downlink_high":null,"downlink_drift":null,"mode":"USB","mode_id":9,"uplink_mode":null,"invert":false,"baud":null,"sat_id":"SCHX-0895-2361-9925-0309","norad_cat_id":965,"status":"active","updated":"2019-04-18T05:39:53.343316Z","citation":"CITATION NEEDED - https://xkcd.com/285/","service":"Unknown","coordination":"","coordination_url":""}]
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""".trimIndent().byteInputStream()
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@Test
|
||||
fun `Given valid CSV stream returns valid data`() = runBlockingTest {
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val parsedList = dataParser.parseCSVStream(validCSVStream)
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assert(parsedList[0].catnum == 900)
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||||
}
|
||||
|
||||
@Test
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fun `Given invalid CSV stream returns empty list`() = runBlockingTest {
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||||
val parsedList = dataParser.parseCSVStream(invalidCSVStream)
|
||||
assert(parsedList.isEmpty())
|
||||
}
|
||||
|
||||
@Test
|
||||
fun `Given valid TLE stream returns valid data`() = runBlockingTest {
|
||||
val parsedList = dataParser.parseTLEStream(validTLEStream)
|
||||
assert(parsedList[0].catnum == 25544)
|
||||
}
|
||||
|
||||
@Test
|
||||
fun `Given invalid TLE stream returns empty list`() = runBlockingTest {
|
||||
val parsedList = dataParser.parseTLEStream(invalidTLEStream)
|
||||
assert(parsedList.isEmpty())
|
||||
}
|
||||
|
||||
@Test
|
||||
fun `Given valid JSON stream returns valid data`() = runBlockingTest {
|
||||
val parsedList = dataParser.parseJSONStream(validJSONStream)
|
||||
assert(parsedList[0].catnum == 965)
|
||||
}
|
||||
|
||||
@Test
|
||||
fun `Given invalid JSON stream returns empty list`() = runBlockingTest {
|
||||
val parsedList = dataParser.parseJSONStream(invalidJSONStream)
|
||||
assert(parsedList.isEmpty())
|
||||
}
|
||||
}
|
||||
@@ -1,56 +0,0 @@
|
||||
/*
|
||||
* Look4Sat. Amateur radio satellite tracker and pass predictor.
|
||||
* Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
package com.rtbishop.look4sat
|
||||
|
||||
import com.rtbishop.look4sat.domain.predict.TLE
|
||||
import org.junit.Test
|
||||
|
||||
class TleParserTest {
|
||||
|
||||
private val validTleStream = """
|
||||
ISS (ZARYA)
|
||||
1 25544U 98067A 21255.21005818 -.00120443 00000-0 -22592-2 0 9998
|
||||
2 25544 51.6451 272.4173 0002526 27.1693 64.4213 15.48396490302085
|
||||
SHENZHOU-12
|
||||
1 48852U 21053A 21254.65783594 .00009779 00000-0 11349-3 0 9992
|
||||
2 48852 41.4714 115.4555 0001945 272.0324 187.3218 15.61782249 21227
|
||||
PROGRESS-MS 17
|
||||
1 48869U 21057A 21254.57379002 .00002620 00000-0 56399-4 0 9993
|
||||
2 48869 51.6436 275.5624 0003404 23.4371 118.9508 15.48629868301984
|
||||
""".trimIndent().byteInputStream()
|
||||
private val invalidTleStream = """
|
||||
1 25544U 98067A 21255.21005818 -.00120443 00000-0 -22592-2 0 9998
|
||||
2 25544 51.6451 272.4173 0002526 27.1693 64.4213 15.48396490302085
|
||||
1 48852U 21053A 21254.65783594 .00009779 00000-0 11349-3 0 9992
|
||||
2 48852 41.4714 115.4555 0001945 272.0324 187.3218 15.61782249 21227
|
||||
1 48869U 21057A 21254.57379002 .00002620 00000-0 56399-4 0 9993
|
||||
2 48869 51.6436 275.5624 0003404 23.4371 118.9508 15.48629868301984
|
||||
""".trimIndent().byteInputStream()
|
||||
|
||||
@Test
|
||||
fun `Given valid TLE stream returns valid data`() {
|
||||
val parsedList = TLE.parseTleStream(validTleStream)
|
||||
assert(parsedList[2].catnum == 48869)
|
||||
}
|
||||
|
||||
@Test
|
||||
fun `Given invalid TLE stream returns empty list`() {
|
||||
val parsedList = TLE.parseTleStream(invalidTleStream)
|
||||
assert(parsedList.isEmpty())
|
||||
}
|
||||
}
|
||||
Reference in new issue
Block a user