| 1 | package cz.vutbr.feec.packets.ttp; |
| 2 | |
| 3 | import cz.vutbr.feec.packets.IPacket; |
| 4 | import cz.vutbr.feec.packets.PacketGenerateException; |
| 5 | import cz.vutbr.feec.packets.PacketParseException; |
| 6 | import cz.vutbr.feec.packets.PacketUtils; |
| 7 | |
| 8 | import org.apache.commons.lang.builder.ToStringBuilder; |
| 9 | |
| 10 | public class FTSGroupBlock implements IPacket { |
| 11 | |
| 12 | private long feedbackTargerIP; |
| 13 | private long feedbackTargetPort; |
| 14 | private long groupSize; |
| 15 | private long vectorSpecification; |
| 16 | private int lenght; |
| 17 | private int reservedEnd; |
| 18 | private long LMidVector; |
| 19 | |
| 20 | public int generate(byte[] buffer, int offset) |
| 21 | throws PacketGenerateException { |
| 22 | assert PacketUtils.checkSize(getFeedbackTargerIP(), 32); |
| 23 | assert PacketUtils.checkSize(getFeedbackTargetPort(), 16); |
| 24 | assert PacketUtils.checkSize(getGroupSize(), 16); |
| 25 | assert PacketUtils.checkSize(getVectorSpecification(), 16); |
| 26 | assert PacketUtils.checkSize(getLenght(), 6); |
| 27 | assert PacketUtils.checkSize(getReservedEnd(), 10); |
| 28 | |
| 29 | PacketUtils.setOctet4(buffer, offset, getFeedbackTargerIP()); |
| 30 | PacketUtils.setOctet2(buffer, offset + 4, getFeedbackTargetPort()); |
| 31 | PacketUtils.setOctet2(buffer, offset + 6, getGroupSize()); |
| 32 | PacketUtils.setOctet2(buffer, offset + 8,getVectorSpecification()); |
| 33 | PacketUtils.setOctet2(buffer, offset + 10, |
| 34 | (((getLenght() << 10) & 0xFC00) | (getReservedEnd() & 0x03FF))); |
| 35 | PacketUtils.setOctet4(buffer, offset + 12, getLMidVector()); |
| 36 | |
| 37 | return 16; |
| 38 | } |
| 39 | |
| 40 | public int parse(byte[] buffer, int offset, int length) |
| 41 | throws PacketParseException { |
| 42 | |
| 43 | setFeedbackTargerIP(PacketUtils.getOctet4(buffer, offset)); |
| 44 | setFeedbackTargetPort(PacketUtils.getOctet2(buffer, 4 + offset)); |
| 45 | setGroupSize(PacketUtils.getOctet2(buffer, 6 + offset)); |
| 46 | setVectorSpecification(PacketUtils.getOctet2(buffer, 8 + offset)); |
| 47 | |
| 48 | long first = PacketUtils.getOctet2(buffer, 10 + offset); |
| 49 | setLenght((int)(first & 0xFC00)>>10); |
| 50 | setReservedEnd((int)(first & 0x03FF)); |
| 51 | setLMidVector(PacketUtils.getOctet4(buffer, 12 + offset)); |
| 52 | return 16; |
| 53 | } |
| 54 | |
| 55 | public long getFeedbackTargerIP() { |
| 56 | return feedbackTargerIP; |
| 57 | } |
| 58 | |
| 59 | public void setFeedbackTargerIP(long feedbackTargerIP) { |
| 60 | this.feedbackTargerIP = feedbackTargerIP; |
| 61 | } |
| 62 | |
| 63 | public long getFeedbackTargetPort() { |
| 64 | return feedbackTargetPort; |
| 65 | } |
| 66 | |
| 67 | public void setFeedbackTargetPort(long feedbackTargetPort) { |
| 68 | this.feedbackTargetPort = feedbackTargetPort; |
| 69 | } |
| 70 | |
| 71 | public long getGroupSize() { |
| 72 | return groupSize; |
| 73 | } |
| 74 | |
| 75 | public void setGroupSize(long groupSize) { |
| 76 | this.groupSize = groupSize; |
| 77 | } |
| 78 | |
| 79 | public long getVectorSpecification() { |
| 80 | return vectorSpecification; |
| 81 | } |
| 82 | |
| 83 | public void setVectorSpecification(long vectorSpecification) { |
| 84 | this.vectorSpecification = vectorSpecification; |
| 85 | } |
| 86 | |
| 87 | public int getLenght() { |
| 88 | return lenght; |
| 89 | } |
| 90 | |
| 91 | public void setLenght(int lenght) { |
| 92 | this.lenght = lenght; |
| 93 | } |
| 94 | |
| 95 | public int getReservedEnd() { |
| 96 | return reservedEnd; |
| 97 | } |
| 98 | |
| 99 | public void setReservedEnd(int reservedEnd) { |
| 100 | this.reservedEnd = reservedEnd; |
| 101 | } |
| 102 | |
| 103 | public long getLMidVector() { |
| 104 | return LMidVector; |
| 105 | } |
| 106 | |
| 107 | public void setLMidVector(long midVector) { |
| 108 | LMidVector = midVector; |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * @see java.lang.Object#toString() |
| 113 | */ |
| 114 | public String toString() { |
| 115 | return new ToStringBuilder(this).append("feedbackTargetPort", |
| 116 | this.feedbackTargetPort) |
| 117 | .append("reservedEnd", this.reservedEnd).append("groupSize", |
| 118 | this.groupSize).append("lenght", this.lenght).append( |
| 119 | "feedbackTargerIP", this.feedbackTargerIP).append( |
| 120 | "LMidVector", this.LMidVector).append( |
| 121 | "vectorSpecification", this.vectorSpecification) |
| 122 | .toString(); |
| 123 | } |
| 124 | |
| 125 | } |