Revision 2
Final delivery
| MessageParser.java | ||
|---|---|---|
| 2 | 2 |
import java.io.UnsupportedEncodingException; |
| 3 | 3 |
import java.net.DatagramPacket; |
| 4 | 4 |
import java.net.UnknownHostException; |
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import java.nio.charset.Charset; |
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import java.nio.charset.StandardCharsets; |
| 6 | 7 |
import java.util.Arrays; |
| 7 | 8 |
import java.util.Random; |
| ... | ... | |
| 20 | 21 |
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public void run() {
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String str = new String(packet.getData(), StandardCharsets.UTF_8); |
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String str = null; |
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str = new String(packet.getData(),0, packet.getLength()); |
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String rest = null, fileID = null, messageType = null, version = null; |
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int i = 0, next = 0, chunkNo = 0, replicationDeg = 0, senderID=0; |
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byte[] body = null; |
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if(str.contains(" ")){
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i= str.indexOf(" ");
|
| ... | ... | |
| 54 | 61 |
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String bodyString = rest.replaceFirst(CRLF+CRLF,""); |
| 56 | 63 |
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String bodyString2 = bodyString.replaceAll("\0", "");
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bodyString = bodyString.replaceFirst(" ", "");
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bodyString = bodyString2.replaceFirst(" ", "");
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byte[] body = bodyString.getBytes( StandardCharsets.UTF_8); |
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body = bodyString.getBytes(); |
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switch(messageType) {
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case "PUTCHUNK": |
| 67 | 75 |
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Chunk chunk = new Chunk(fileID, chunkNo, body); |
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System.out.println("CHUNK N: "+ chunk.getChunkN()+ " SIZE: " + chunk.getContent().length);
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chunk.setGoalRepDeg(replicationDeg);
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if(peer.getStorage().addChunk(chunk)) {
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Message stored = new Message("STORED",peer.getVersion(),peer.getPeerID(),fileID, chunkNo, 0, null);
|
| ... | ... | |
| 104 | 112 |
|
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case "STORED": |
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peer.getStorage().getBackUps().add(new BackUpInfo(fileID, chunkNo, peer.getPeerID())); |
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peer.getStorage().increaseChunkRepDeg(fileID, chunkNo); |
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break; |
| 110 | 119 |
|
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case "GETCHUNK": //CHUNK <Version> <SenderId> <FileId> <ChunkNo> <CRLF><CRLF><Body> |
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Random rand = new Random(); |
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int n = rand.nextInt(400) + 1; |
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try {
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Thread.sleep(n); |
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} catch (InterruptedException e) {
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e.printStackTrace(); |
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} |
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for(Chunk chunkSend: peer.getStorage().getChunks()) {
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if(chunkSend.getFileID().equals(fileID) && chunkSend.getChunkN()==chunkNo) {
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Random rand = new Random(); |
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int n = rand.nextInt(400) + 1; |
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try {
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Thread.sleep(n); |
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} catch (InterruptedException e) {
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e.printStackTrace(); |
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} |
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Message sendChunk = new Message("CHUNK",peer.getVersion(),peer.getPeerID(),fileID, chunkNo, 0, chunkSend.getContent());
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byte[] reply = sendChunk.sendable(); |
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System.out.println(sendChunk.messageToStringPrintable()); |
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try {
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peer.getMDR().sendMessage(reply); |
| ... | ... | |
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case "CHUNK": //GETCHUNK <Version> <SenderId> <FileId> <ChunkNo> <CRLF><CRLF> |
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Chunk gotChunk = new Chunk(fileID, chunkNo, body); |
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peer.getStorage().addChunk(gotChunk); |
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if(gotChunk.getContent().length < 64000)
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if(gotChunk.getContent().length < 58000)
|
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peer.lastChunk(); |
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break; |
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|
| 152 | 166 |
case "REMOVED": |
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Random rand = new Random(); |
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int n = rand.nextInt(400) + 1; |
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if(peer.getStorage().lowerRepDeg(fileID, chunkNo)) {
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Random rand2 = new Random(); |
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int n2 = rand2.nextInt(400) + 1; |
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try {
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Thread.sleep(n); |
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Thread.sleep(n2);
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} catch (InterruptedException e) {
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e.printStackTrace(); |
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} |
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peer.getStorage().getBackUps().remove(new BackUpInfo(fileID, chunkNo, peer.getPeerID())); |
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for(Chunk chunkSend: peer.getStorage().getChunks()) |
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{
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if(chunkSend.getFileID().equals(fileID) && chunkSend.getChunkN() == chunkNo) |
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{
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boolean stored = false; |
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Message msg = new Message("PUTCHUNK", version, peer.getPeerID(),chunkSend.getFileID(),chunkNo, chunkSend.getGoalRepDeg()-chunkSend.getRepDeg(),
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chunkSend.getContent()); |
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byte[] msgByte = msg.sendable(); |
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System.out.println(msg.messageToStringPrintable()); |
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try {
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peer.getMDB().sendMessage(msgByte); |
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} catch (UnknownHostException e2) {
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// TODO Auto-generated catch block |
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e2.printStackTrace(); |
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} |
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for(int j = 0; j < 5 && !stored; j++) {
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try {
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TimeUnit.SECONDS.sleep(1+j); |
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} catch (InterruptedException e1) {
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// TODO Auto-generated catch block |
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e1.printStackTrace(); |
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} |
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if(peer.storedCheck(chunkNo, fileID) >= chunkSend.getGoalRepDeg()) {
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stored = true; |
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} |
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else {
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try {
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peer.getMDB().sendMessage(msgByte); |
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} catch (UnknownHostException e) {
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// TODO Auto-generated catch block |
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e.printStackTrace(); |
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} |
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System.out.println(msg.messageToStringPrintable()); |
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} |
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} |
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stored = false; |
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} |
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} |
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} |
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|
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break; |
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|
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case "DELETE": |
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//peer.getStorage().getFileInfo().remove(new FileInfo(fileID, peer.getFileInfo.getDateModified(), FileInfo.getFilename(), peer.getPeerID())); |
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peer.getStorage().deleteChunkByFileID(fileID); |
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peer.deleteFileFolder(fileID); |
|
| 167 | 229 |
break; |
| 168 | 230 |
} |
| 169 | 231 |
} |
Also available in: Unified diff