106 lines
2.9 KiB
Kotlin
106 lines
2.9 KiB
Kotlin
package org.hso.texturesyncclient.controller.net
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import com.google.gson.*
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import org.hso.texturesyncclient.model.Texture
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import java.io.*
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import java.lang.RuntimeException
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import java.net.*
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@Suppress("MemberVisibilityCanBePrivate")
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class Connection(val addr: InetAddress, val port: Int = 10796) : Closeable {
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var socket: Socket? = null
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var output: DataOutputStream? = null
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var input: DataInputStream? = null
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@Throws(IOException::class)
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private fun getStreams(): Pair<DataInputStream, DataOutputStream> {
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val i: DataInputStream
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val o: DataOutputStream
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if (socket == null || !socket!!.isConnected) {
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val sock = Socket(addr, port)
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i = DataInputStream(BufferedInputStream(sock.getInputStream()))
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o = DataOutputStream(BufferedOutputStream(sock.getOutputStream()))
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input = i
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output = o
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socket = sock
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} else {
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i = input!!
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o = output!!
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}
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return Pair(i, o)
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}
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@Throws(IOException::class)
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fun ping() {
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val io = getStreams()
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val obj = JsonObject()
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obj.add("ping", JsonObject())
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JsonPacket(obj).write(io.second)
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val pkg = Packet.read(io.first)
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when (pkg) {
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is JsonPacket -> return
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is BinaryPacket -> throw ConnectionUnexpectedPacket()
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is ErrorPacket -> throw ConnectionErrorException(pkg)
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else -> throw RuntimeException("Unreachable")
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}
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}
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fun query(query : Array<String>) : Array<Texture> {
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val io = getStreams()
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val obj = JsonObject()
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obj.add("query", {
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val inner = JsonObject();
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inner.add("query", {
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val array = JsonArray()
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for(queryString in query) {
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array.add(queryString)
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}
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array
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}())
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inner
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}())
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JsonPacket(obj).write(io.second)
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val pkg = Packet.read(io.first)
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when (pkg) {
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is JsonPacket -> {
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try {
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return Gson().fromJson<Array<InternalTexture>>(pkg.content, Array<InternalTexture>::class.java).map {
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tex -> tex.toTexture()
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}.toTypedArray()
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} catch (e : JsonSyntaxException ){
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throw ConnectionInvalidJsonException()
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}
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}
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is BinaryPacket -> throw ConnectionUnexpectedPacket()
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is ErrorPacket -> throw ConnectionErrorException(pkg)
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else -> throw RuntimeException("Unreachable")
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}
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}
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@Throws(IOException::class)
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override fun close() {
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if (output != null) {
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output!!.close()
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}
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if (input != null) {
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input!!.close()
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}
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if (socket != null) {
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socket!!.close()
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}
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}
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} |