localhorst/TextureSync
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implement query ; fix error handling

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CodeSteak
2019-06-02 22:04:01 +02:00
parent d907ff138a
commit 2e344da2f4
5 changed files with 86 additions and 15 deletions
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46
client/src/main/kotlin/org/hso/texturesyncclient/controller/net/Connection.kt
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@ -2,9 +2,10 @@ package org.hso.texturesyncclient.controller.net
import com.google.gson.*
import java.io.*
import java.lang.Exception
import java.lang.RuntimeException
import java.net.*
@Suppress("MemberVisibilityCanBePrivate")
class Connection(val addr: InetAddress, val port: Int = 10796) : Closeable {
@ -42,10 +43,47 @@ class Connection(val addr: InetAddress, val port: Int = 10796) : Closeable {
JsonPacket(obj).write(io.second)
when (Packet.read(io.first)) {
val pkg = Packet.read(io.first)
when (pkg) {
is JsonPacket -> return
is ErrorPacket -> throw Exception("TODO")
is BinaryPacket -> throw Exception("TODO")
is BinaryPacket -> throw ConnectionUnexpectedPacket()
is ErrorPacket -> throw ConnectionErrorException(pkg)
else -> throw RuntimeException("Unreachable")
}
}
fun query(query : Array<String>) : Array<InternalTexture> {
val io = getStreams()
val obj = JsonObject()
obj.add("query", {
val inner = JsonObject();
inner.add("query", {
val array = JsonArray()
for(queryString in query) {
array.add(queryString)
}
array
}())
inner
}())
JsonPacket(obj).write(io.second)
val pkg = Packet.read(io.first)
when (pkg) {
is JsonPacket -> {
try {
return Gson().fromJson<Array<InternalTexture>>(pkg.content, Array<InternalTexture>::class.java)
} catch (e : JsonSyntaxException ){
throw ConnectionInvalidJsonException(e)
}
}
is BinaryPacket -> throw ConnectionUnexpectedPacket()
is ErrorPacket -> throw ConnectionErrorException(pkg)
else -> throw RuntimeException("Unreachable")
}
}

14
client/src/main/kotlin/org/hso/texturesyncclient/controller/net/InternalDataModel.kt Normal file
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@ -0,0 +1,14 @@
package org.hso.texturesyncclient.controller.net
// These types will be converted to the model.DataModel
@Suppress("ArrayInDataClass")
data class InternalTexture(
val id : String,
val name : String,
val tags : Array<String>,
val format : String,
val resolution: Array<Int>,
val added_on : String,
val texture_hash: String
)

16
client/src/main/kotlin/org/hso/texturesyncclient/controller/net/Packet.kt
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@ -1,17 +1,11 @@
package org.hso.texturesyncclient.controller.net
import com.google.gson.JsonObject
import com.google.gson.JsonElement
import com.google.gson.JsonParseException
import com.google.gson.JsonParser
import java.io.DataInputStream
import java.io.DataOutputStream
import java.io.IOException
import java.lang.Exception
open class PacketException(msg: String) : Exception(msg)
class PacketTooLongException : PacketException("The Package is too long.")
class PacketInvalidType : PacketException("The Package has an Invalid Type.")
class PacketInvalidData : PacketException("The Package has an Invalid Data. (e.g. Invalid Json.)")
abstract class Packet {
@ -81,7 +75,7 @@ abstract class Packet {
TYPE_JSON -> {
try {
val obj = JsonParser().parse(String(payload)).asJsonObject
val obj = JsonParser().parse(String(payload))
return JsonPacket(obj)
} catch (e: JsonParseException) {
@ -103,7 +97,7 @@ abstract class Packet {
}
data class JsonPacket(val content: JsonObject) : Packet() {
data class JsonPacket(val content: JsonElement) : Packet() {
override fun write(out: DataOutputStream) {
val payload = content.toString().toByteArray()
// Tag Byte
@ -124,8 +118,8 @@ data class JsonPacket(val content: JsonObject) : Packet() {
}
}
@Suppress("MemberVisibilityCanBePrivate")
class BinaryPacket(val content: ByteArray) : Packet() {
@Suppress("ArrayInDataClass")
data class BinaryPacket(val content: ByteArray) : Packet() {
override fun write(out: DataOutputStream) {
// Tag Byte
out.writeByte(TYPE_BINARY.toInt())

16
client/src/main/kotlin/org/hso/texturesyncclient/controller/net/error.kt Normal file
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@ -0,0 +1,16 @@
package org.hso.texturesyncclient.controller.net
import com.google.gson.JsonSyntaxException
import java.lang.Exception
sealed class ConnectionException(val msg : String) : Exception(msg)
class ConnectionErrorException(val error : ErrorPacket) : ConnectionException("${error.code} ${error.message}")
class ConnectionUnexpectedPacket() : ConnectionException("Got Unexpected Type of Packet")
class ConnectionInvalidJsonException(val jsonError : JsonSyntaxException) : ConnectionException("The Format of the Json Received is Unexpected.")
sealed class PacketException(msg: String) : ConnectionException(msg)
class PacketTooLongException : PacketException("The Package is too long.")
class PacketInvalidType : PacketException("The Package has an Invalid Type.")
class PacketInvalidData : PacketException("The Package has an Invalid Data. (e.g. Invalid Json.)")

9
client/src/main/kotlin/org/hso/texturesyncclient/controller/net/test.kt
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@ -9,5 +9,14 @@ fun main() {
con.ping()
println("Query:")
for (tex in con.query(
arrayOf("Red", "Food")
)) {
println(tex.toString())
}
println()
con.close()
}