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55 changes: 55 additions & 0 deletions
55
...on-ws-client-server-common/src/main/scala/functions/helidon/ws/InOutMessageProtocol.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| package functions.helidon.ws | ||
|
|
||
| import functions.model.* | ||
| import io.helidon.common.buffers.BufferData | ||
|
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| import java.io.{ByteArrayOutputStream, PrintWriter} | ||
|
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| class InOutMessageProtocol(invokerMap: InvokerMap): | ||
| private val im = invokerMap.map: | ||
| case (c4, i) => | ||
| (c4.toRawCoordinates, i) | ||
|
|
||
| def incoming(buffer: BufferData): BufferData = | ||
| val receiverId = buffer.readInt32() | ||
| val corId = buffer.readLong() | ||
| val coordsLength = buffer.readUnsignedInt32() | ||
| val coordsByteData = new Array[Byte](coordsLength.toInt) | ||
| buffer.read(coordsByteData) | ||
| val coordsStr = new String(coordsByteData, "UTF-8") | ||
| val coordinates4 = Coordinates4.unapply(coordsStr) | ||
| val dataLen = buffer.readInt32() | ||
| val data = new Array[Byte](dataLen) | ||
| buffer.read(data) | ||
| val argLen = buffer.readInt32() | ||
| val arg = new Array[Byte](argLen) | ||
| buffer.read(arg) | ||
| try | ||
| val f = im(coordinates4.toRawCoordinates) | ||
| val response = f(ReceiverInput(data, arg)) | ||
| val buf = BufferData.growing(response.length + 12) | ||
| buf.writeInt32(receiverId) | ||
| buf.write(0) | ||
| buf.write(longToBytes(corId)) | ||
| buf.write(response) | ||
| buf | ||
| catch | ||
| case t: Throwable => | ||
| val bos = new ByteArrayOutputStream | ||
| val w = new PrintWriter(bos) | ||
| t.printStackTrace(w) | ||
| w.close() | ||
| val data = bos.toByteArray | ||
| val buf = BufferData.growing(data.length + 12) | ||
| buf.writeInt32(receiverId) | ||
| buf.write(1) | ||
| buf.write(longToBytes(corId)) | ||
| buf.write(data) | ||
| buf | ||
|
|
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| private def longToBytes(x: Long): Array[Byte] = | ||
| val buffer = new Array[Byte](8) | ||
| for (i <- 0 until 8) | ||
| // Shift the long value 8*(7-i) bits to the right and take the lowest 8 bits | ||
| buffer(i) = (x >> (8 * (7 - i))).toByte | ||
| buffer |
54 changes: 5 additions & 49 deletions
54
helidon-ws-server/src/main/scala/functions/helidon/ws/ServerWsListener.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,57 +1,13 @@ | ||
| package functions.helidon.ws | ||
|
|
||
| import functions.model.{Coordinates4, ReceiverInput} | ||
| import functions.model.InvokerMap | ||
| import io.helidon.common.buffers.BufferData | ||
| import io.helidon.websocket.{WsListener, WsSession} | ||
|
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| import java.io.{ByteArrayOutputStream, PrintWriter} | ||
| class ServerWsListener(invokerMap: InvokerMap) extends WsListener: | ||
|
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| class ServerWsListener(invokerMap: Map[Coordinates4, ReceiverInput => Array[Byte]]) extends WsListener: | ||
|
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| private val im = invokerMap.map: | ||
| case (c4, i) => | ||
| (c4.toRawCoordinates, i) | ||
| private val protocol = new InOutMessageProtocol(invokerMap) | ||
|
|
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| override def onMessage(session: WsSession, buffer: BufferData, last: Boolean): Unit = | ||
| val receiverId = buffer.readInt32() | ||
| val corId = buffer.readLong() | ||
| val coordsLength = buffer.readUnsignedInt32() | ||
| val coordsByteData = new Array[Byte](coordsLength.toInt) | ||
| buffer.read(coordsByteData) | ||
| val coordsStr = new String(coordsByteData, "UTF-8") | ||
| val coordinates4 = Coordinates4.unapply(coordsStr) | ||
| val dataLen = buffer.readInt32() | ||
| val data = new Array[Byte](dataLen) | ||
| buffer.read(data) | ||
| val argLen = buffer.readInt32() | ||
| val arg = new Array[Byte](argLen) | ||
| buffer.read(arg) | ||
| try | ||
| val f = im(coordinates4.toRawCoordinates) | ||
| val response = f(ReceiverInput(data, arg)) | ||
| val buf = BufferData.growing(response.length + 12) | ||
| buf.writeInt32(receiverId) | ||
| buf.write(0) | ||
| buf.write(longToBytes(corId)) | ||
| buf.write(response) | ||
| session.send(buf, true) | ||
| catch | ||
| case t: Throwable => | ||
| val bos = new ByteArrayOutputStream | ||
| val w = new PrintWriter(bos) | ||
| t.printStackTrace(w) | ||
| w.close() | ||
| val data = bos.toByteArray | ||
| val buf = BufferData.growing(data.length + 12) | ||
| buf.writeInt32(receiverId) | ||
| buf.write(1) | ||
| buf.write(longToBytes(corId)) | ||
| buf.write(data) | ||
| session.send(buf, true) | ||
|
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| private def longToBytes(x: Long): Array[Byte] = | ||
| val buffer = new Array[Byte](8) | ||
| for (i <- 0 until 8) | ||
| // Shift the long value 8*(7-i) bits to the right and take the lowest 8 bits | ||
| buffer(i) = (x >> (8 * (7 - i))).toByte | ||
| buffer | ||
| val out = protocol.incoming(buffer) | ||
| session.send(out, true) |