| import errno |
| import os |
| import re |
| import subprocess |
| import time |
| |
| from generic_utils import memoize |
| import loxi_utils.loxi_utils as loxi_utils |
| import of_g |
| |
| def erase_type_annotation(class_name): |
| m=re.match(r'(.*)<.*>', class_name) |
| if m: |
| return m.group(1) |
| else: |
| return class_name |
| |
| def name_c_to_camel(name): |
| """ 'of_stats_reply' -> 'ofStatsReply' """ |
| name = re.sub(r'^_','', name) |
| tokens = name.split('_') |
| for i in range(1, len(tokens)): |
| tokens[i] = tokens[i].title() |
| return "".join(tokens) |
| |
| def name_c_to_caps_camel(name): |
| """ 'of_stats_reply' to 'OFStatsReply' """ |
| camel = name_c_to_camel(name.title()) |
| if camel.startswith('Ofp'): |
| return camel.replace('Ofp','OF',1) |
| elif camel.startswith('Of'): |
| return camel.replace('Of','OF',1) |
| else: |
| return camel |
| |
| java_primitive_types = set("byte char short int long".split(" ")) |
| |
| ### info table about java primitive types, for casting literals in the source code |
| # { name : (signed?, length_in_bits) } |
| java_primitives_info = { |
| 'byte' : (True, 8), |
| 'char' : (False, 16), |
| 'short' : (True, 16), |
| 'int' : (True, 32), |
| 'long' : (True, 64), |
| } |
| |
| def format_primitive_literal(t, value): |
| """ Format a primitive numeric literal for inclusion in the |
| java source code. Takes care of casting the literal |
| apropriately for correct representation despite Java's |
| signed-craziness |
| """ |
| signed, bits = java_primitives_info[t] |
| max = (1 << bits)-1 |
| if value > max: |
| raise Exception("Value %d to large for type %s" % (value, t)) |
| |
| if signed: |
| max_pos = (1 << (bits-1)) - 1 |
| |
| if value > max_pos: |
| if t == "long": |
| return str((1 << bits) - value) |
| else: |
| return "(%s) 0x%x" % (t, value) |
| else: |
| return "0x%x%s" % (value, "L" if t=="long" else "") |
| |
| ANY = 0xFFFFFFFFFFFFFFFF |
| |
| class VersionOp: |
| def __init__(self, version=ANY, read=None, write=None, default=None): |
| self.version = version |
| self.read = read |
| self.write = write |
| self.default = default |
| |
| def __str__(self): |
| return "[Version: %d, Read: '%s', Write: '%s', Default: '%s' ]" % (self.version, self.read, self.write, self.default ) |
| |
| ### FIXME: This class should really be cleaned up |
| class JType(object): |
| """ Wrapper class to hold C to Java type conversion information. JTypes can have a 'public' |
| and or 'private' java type associated with them and can define how those types can be |
| read from and written to ChannelBuffers. |
| |
| """ |
| def __init__(self, pub_type, priv_type=None): |
| self.pub_type = pub_type # the type we expose externally, e.g. 'U8' |
| if priv_type is None: |
| priv_type = pub_type |
| self.priv_type = priv_type # the internal storage type |
| self.ops = {} |
| |
| def op(self, version=ANY, read=None, write=None, default=None, pub_type=ANY): |
| """ |
| define operations to be performed for reading and writing this type |
| (when read_op, write_op is called). The operations 'read' and 'write' |
| can either be strings ($name, and $version and $length will be replaced), |
| or callables (name, version and length) will be passed. |
| |
| @param version int OF version to define operation for, or ANY for all |
| @param pub_type boolean whether to define operations for the public type (True), the |
| private type(False) or both (ALL) |
| @param read read expression (either string or callable)s |
| @param write write expression (either string or callable) |
| """ |
| |
| pub_types = [ pub_type ] if pub_type is not ANY else [ False, True ] |
| for pub_type in pub_types: |
| self.ops[(version, pub_type)] = VersionOp(version, read, write, default) |
| return self |
| |
| def format_value(self, value, pub_type=True): |
| # Format a constant value of this type, for inclusion in the java source code |
| # For primitive types, takes care of casting the value appropriately, to |
| # cope with java's signedness limitation |
| t = self.pub_type if pub_type else self.priv_type |
| if t in java_primitive_types: |
| return format_primitive_literal(t, value) |
| else: |
| return value |
| |
| @property |
| def public_type(self): |
| """ return the public type """ |
| return self.pub_type |
| |
| def priv(self): |
| """ return the public type """ |
| return self.priv_type |
| |
| def has_priv(self): |
| """ Is the private type different from the public one?""" |
| return self.pub_type != self.priv_type |
| |
| def read_op(self, version=None, length=None, pub_type=True): |
| """ return a Java stanza that reads a value of this JType from ChannelBuffer bb. |
| @param version int - OF wire version to generate expression for |
| @param pub_type boolean use this JTypes 'public' (True), or private (False) representation |
| @param length string, for operations that need it (e.g., read a list of unknown length) |
| Java expression evaluating to the byte length to be read. Defaults to the remainig |
| length of the message. |
| @return string containing generated Java expression. |
| """ |
| if length is None: |
| # assumes that |
| # (1) length of the message has been read to 'length' |
| # (2) readerIndex at the start of the message has been stored in 'start' |
| length = "length - (bb.readerIndex() - start)"; |
| |
| ver = ANY if version is None else version.int_version |
| _read_op = None |
| if (ver, pub_type) in self.ops: |
| _read_op = self.ops[(ver, pub_type)].read or self.ops[(ANY, pub_type)].read |
| elif (ANY, pub_type) in self.ops: |
| _read_op = self.ops[(ANY, pub_type)].read |
| if _read_op is None: |
| _read_op = 'ChannelUtilsVer$version.read%s(bb)' % self.pub_type |
| if callable(_read_op): |
| return _read_op(version) |
| else: |
| return _read_op.replace("$length", str(length)).replace("$version", version.of_version) |
| |
| def write_op(self, version=None, name=None, pub_type=True): |
| """ return a Java stanza that writes a value of this JType contained in Java expression |
| 'name' to ChannelBuffer bb. |
| @param name string containing Java expression that evaluations to the value to be written |
| @param version int - OF wire version to generate expression for |
| @param pub_type boolean use this JTypes 'public' (True), or private (False) representation |
| @return string containing generated Java expression. |
| """ |
| ver = ANY if version is None else version.int_version |
| _write_op = None |
| if (ver, pub_type) in self.ops: |
| _write_op = self.ops[(ver, pub_type)].write or self.ops[(ANY, pub_type)].write |
| elif (ANY, pub_type) in self.ops: |
| _write_op = self.ops[(ANY, pub_type)].write |
| if _write_op is None: |
| |
| _write_op = 'ChannelUtilsVer$version.write%s(bb, $name)' % self.pub_type |
| if callable(_write_op): |
| return _write_op(version, name) |
| else: |
| return _write_op.replace("$name", str(name)).replace("$version", version.of_version) |
| |
| def default_op(self, version=None, pub_type=True): |
| """ return a Java stanza that returns a default value of this JType. |
| @param version JavaOFVersion |
| @return string containing generated Java expression. |
| """ |
| ver = ANY if version is None else version.int_version |
| _default_op = None |
| if (ver, pub_type) in self.ops: |
| _default_op = self.ops[(ver, pub_type)].default or self.ops[(ANY, pub_type)].default |
| elif (ANY, pub_type) in self.ops: |
| _default_op = self.ops[(ANY, pub_type)].default |
| if _default_op is None: |
| _default_op = self.format_value(0) if self.is_primitive else "null" |
| if callable(_default_op): |
| return _default_op(version, name) |
| else: |
| return _default_op.replace("$version", version.of_version) |
| |
| def skip_op(self, version=None, length=None): |
| """ return a java stanza that skips an instance of JType in the input ChannelBuffer 'bb'. |
| This is used in the Reader implementations for virtual classes (because after the |
| discriminator field, the concrete Reader instance will re-read all the fields) |
| Currently just delegates to read_op + throws away the result.""" |
| return self.read_op(version, length) |
| |
| @property |
| def is_primitive(self): |
| """ return true if the pub_type is a java primitive type (and thus needs |
| special treatment, because it doesn't have methods)""" |
| return self.pub_type in java_primitive_types |
| |
| @property |
| def is_array(self): |
| """ return true iff the pub_type is a Java array (and thus requires special |
| treatment for equals / toString etc.) """ |
| return self.pub_type.endswith("[]") |
| |
| |
| ##### Predefined JType mappings |
| # FIXME: This list needs to be pruned / cleaned up. Most of these are schematic. |
| |
| u8 = JType('short', 'byte') \ |
| .op(read='bb.readByte()', write='bb.writeByte($name)') |
| u8_list = JType('List<U8>') \ |
| .op(read='ChannelUtils.readList(bb, $length, U8.READER)', write='ChannelUtils.writeList(bb, $name)') |
| u16 = JType('int', 'short') \ |
| .op(read='U16.f(bb.readShort())', write='bb.writeShort(U16.t($name))', pub_type=True) \ |
| .op(read='bb.readShort()', write='bb.writeShort($name)', pub_type=False) |
| u32 = JType('long', 'int') \ |
| .op(read='U32.f(bb.readInt())', write='bb.writeInt(U32.t($name))', pub_type=True) \ |
| .op(read='bb.readInt()', write='bb.writeInt($name)', pub_type=False) |
| u32_list = JType('List<U32>', 'int[]') \ |
| .op( |
| read='ChannelUtils.readList(bb, $length, U32.READER)', |
| write='ChannelUtils.writeList(bb, $name)', |
| default="ImmutableList.<U32>of()"); |
| u8obj = JType('U8', 'U8') \ |
| .op(read='U8.of(bb.readByte())', write='bb.writeByte($name.getRaw())', default="U8.ZERO") |
| u32obj = JType('U32', 'U32') \ |
| .op(read='U32.of(bb.readInt())', write='bb.writeInt($name.getRaw())', default="U32.ZERO") |
| u64 = JType('U64', 'U64') \ |
| .op(read='U64.ofRaw(bb.readLong())', write='bb.writeLong($name.getValue())', default="U64.ZERO") |
| of_port = JType("OFPort") \ |
| .op(version=1, read="OFPort.read2Bytes(bb)", write="$name.write2Bytes(bb)", default="OFPort.NONE") \ |
| .op(version=ANY, read="OFPort.read4Bytes(bb)", write="$name.write4Bytes(bb)", default="OFPort.NONE") |
| actions_list = JType('List<OFAction>') \ |
| .op(read='ChannelUtils.readList(bb, $length, OFActionVer$version.READER)', |
| write='ChannelUtils.writeList(bb, $name);', |
| default='ImmutableList.<OFAction>of()') |
| instructions_list = JType('List<OFInstruction>') \ |
| .op(read='ChannelUtils.readList(bb, $length, OFInstructionVer$version.READER)', \ |
| write='ChannelUtils.writeList(bb, $name)', |
| default='ImmutableList.<OFInstruction>of()') |
| buckets_list = JType('List<OFBucket>') \ |
| .op(read='ChannelUtils.readList(bb, $length, OFBucketVer$version.READER)', |
| write='ChannelUtils.writeList(bb, $name)', |
| default='ImmutableList.<OFBucket>of()') |
| port_desc_list = JType('List<OFPortDesc>') \ |
| .op(read='ChannelUtils.readList(bb, $length, OFPortDescVer$version.READER)', |
| write='ChannelUtils.writeList(bb, $name)', |
| default='ImmutableList.<OFPortDesc>of()') |
| port_desc = JType('OFPortDesc') \ |
| .op(read='OFPortDescVer$version.READER.readFrom(bb)', \ |
| write='$name.writeTo(bb)') |
| packet_queue_list = JType('List<OFPacketQueue>') \ |
| .op(read='ChannelUtils.readList(bb, $length, OFPacketQueueVer$version.READER)', |
| write='ChannelUtils.writeList(bb, $name);', |
| default='ImmutableList.<OFPacketQueue>of()') |
| octets = JType('byte[]') \ |
| .op(read='ChannelUtils.readBytes(bb, $length)', \ |
| write='bb.writeBytes($name)', \ |
| default="new byte[0]"); |
| of_match = JType('Match') \ |
| .op(read='ChannelUtilsVer$version.readOFMatch(bb)', \ |
| write='$name.writeTo(bb)'); |
| flow_mod_cmd = JType('OFFlowModCommand', 'short') \ |
| .op(version=1, read="bb.readShort()", write="bb.writeShort($name)") \ |
| .op(version=ANY, read="bb.readByte()", write="bb.writeByte($name)") |
| mac_addr = JType('MacAddress') \ |
| .op(read="MacAddress.read6Bytes(bb)", \ |
| write="$name.write6Bytes(bb)", |
| default="MacAddress.NONE") |
| port_name = JType('String') \ |
| .op(read='ChannelUtils.readFixedLengthString(bb, 16)', \ |
| write='ChannelUtils.writeFixedLengthString(bb, $name, 16)', |
| default='""') |
| desc_str = JType('String') \ |
| .op(read='ChannelUtils.readFixedLengthString(bb, 256)', \ |
| write='ChannelUtils.writeFixedLengthString(bb, $name, 256)', |
| default='""') |
| serial_num = JType('String') \ |
| .op(read='ChannelUtils.readFixedLengthString(bb, 32)', \ |
| write='ChannelUtils.writeFixedLengthString(bb, $name, 32)', |
| default='""') |
| table_name = JType('String') \ |
| .op(read='ChannelUtils.readFixedLengthString(bb, 32)', \ |
| write='ChannelUtils.writeFixedLengthString(bb, $name, 32)', |
| default='""') |
| ipv4 = JType("IPv4Address") \ |
| .op(read="IPv4Address.read4Bytes(bb)", \ |
| write="$name.write4Bytes(bb)", |
| default='IPv4Address.NONE') |
| ipv6 = JType("IPv6Address") \ |
| .op(read="IPv6Address.read16Bytes(bb)", \ |
| write="$name.write16Bytes(bb)", |
| default='IPv6Address.NONE') |
| packetin_reason = JType("OFPacketInReason")\ |
| .op(read="OFPacketInReasonSerializerVer$version.readFrom(bb)", |
| write="OFPacketInReasonSerializerVer$version.writeTo(bb, $name)") |
| transport_port = JType("TransportPort")\ |
| .op(read="TransportPort.read2Bytes(bb)", |
| write="$name.write2Bytes(bb)", |
| default="TransportPort.NONE") |
| eth_type = JType("EthType")\ |
| .op(read="EthType.read2Bytes(bb)", |
| write="$name.write2Bytes(bb)", |
| default="EthType.NONE") |
| vlan_vid = JType("VlanVid")\ |
| .op(read="VlanVid.read2Bytes(bb)", |
| write="$name.write2Bytes(bb)", |
| default="VlanVid.NONE") |
| vlan_pcp = JType("VlanPcp")\ |
| .op(read="VlanPcp.readByte(bb)", |
| write="$name.writeByte(bb)", |
| default="VlanPcp.NONE") |
| ip_dscp = JType("IpDscp")\ |
| .op(read="IpDscp.readByte(bb)", |
| write="$name.writeByte(bb)", |
| default="IpDscp.NONE") |
| ip_ecn = JType("IpEcn")\ |
| .op(read="IpEcn.readByte(bb)", |
| write="$name.writeByte(bb)", |
| default="IpEcn.NONE") |
| ip_proto = JType("IpProtocol")\ |
| .op(read="IpProtocol.readByte(bb)", |
| write="$name.writeByte(bb)", |
| default="IpProtocol.NONE") |
| icmpv4_type = JType("ICMPv4Type")\ |
| .op(read="ICMPv4Type.readByte(bb)", |
| write="$name.writeByte(bb)", |
| default="ICMPv4Type.NONE") |
| icmpv4_code = JType("ICMPv4Code")\ |
| .op(read="ICMPv4Code.readByte(bb)", |
| write="$name.writeByte(bb)", |
| default="ICMPv4Code.NONE") |
| arp_op = JType("ArpOpcode")\ |
| .op(read="ArpOpcode.read2Bytes(bb)", |
| write="$name.write2Bytes(bb)", |
| default="ArpOpcode.NONE") |
| ipv6_flabel = JType("IPv6FlowLabel")\ |
| .op(read="IPv6FlowLabel.read4Bytes(bb)", |
| write="$name.write4Bytes(bb)", |
| default="IPv6FlowLabel.NONE") |
| metadata = JType("OFMetadata")\ |
| .op(read="OFMetadata.read8Bytes(bb)", |
| write="$name.write8Bytes(bb)", |
| default="OFMetadata.NONE") |
| oxm = JType("OFOxm<?>")\ |
| .op( read="OFOxmVer$version.READER.readFrom(bb)", |
| write="$name.writeTo(bb)") |
| oxm_list = JType("OFOxmList") \ |
| .op( |
| read= 'OFOxmList.readFrom(bb, $length, OFOxmVer$version.READER)', \ |
| write='$name.writeTo(bb)', |
| default="OFOxmList.EMPTY") |
| meter_features = JType("OFMeterFeatures")\ |
| .op(read="OFMeterFeaturesVer$version.READER.readFrom(bb)", |
| write="$name.writeTo(bb)") |
| flow_wildcards = JType("int") \ |
| .op(read='bb.readInt()', |
| write='bb.writeInt($name)', |
| default="OFFlowWildcardsSerializerVer$version.ALL_VAL") |
| table_stats_wildcards = JType("int") \ |
| .op(read='bb.readInt()', |
| write='bb.writeInt($name)') |
| |
| |
| port_speed = JType("PortSpeed") |
| error_type = JType("OFErrorType") |
| boolean = JType("boolean").op(default="false") |
| |
| generic_t = JType("T") |
| |
| |
| default_mtype_to_jtype_convert_map = { |
| 'uint8_t' : u8, |
| 'uint16_t' : u16, |
| 'uint32_t' : u32, |
| 'uint64_t' : u64, |
| 'of_port_no_t' : of_port, |
| 'list(of_action_t)' : actions_list, |
| 'list(of_instruction_t)' : instructions_list, |
| 'list(of_bucket_t)': buckets_list, |
| 'list(of_port_desc_t)' : port_desc_list, |
| 'list(of_packet_queue_t)' : packet_queue_list, |
| 'list(of_uint32_t)' : u32_list, |
| 'list(of_uint8_t)' : u8_list, |
| 'list(of_oxm_t)' : oxm_list, |
| 'of_octets_t' : octets, |
| 'of_match_t': of_match, |
| 'of_fm_cmd_t': flow_mod_cmd, |
| 'of_mac_addr_t': mac_addr, |
| 'of_port_desc_t': port_desc, |
| 'of_desc_str_t': desc_str, |
| 'of_serial_num_t': serial_num, |
| 'of_port_name_t': port_name, |
| 'of_table_name_t': table_name, |
| 'of_ipv4_t': ipv4, |
| 'of_ipv6_t': ipv6, |
| 'of_wc_bmap_t': flow_wildcards, |
| 'of_oxm_t': oxm, |
| 'of_meter_features_t': meter_features, |
| } |
| |
| ## Map that defines exceptions from the standard loxi->java mapping scheme |
| # map of {<loxi_class_name> : { <loxi_member_name> : <JType instance> } } |
| exceptions = { |
| 'of_packet_in': { 'data' : octets, 'reason': packetin_reason }, |
| 'of_oxm_tcp_src' : { 'value' : transport_port }, |
| 'of_oxm_tcp_src_masked' : { 'value' : transport_port, 'value_mask' : transport_port }, |
| 'of_oxm_tcp_dst' : { 'value' : transport_port }, |
| 'of_oxm_tcp_dst_masked' : { 'value' : transport_port, 'value_mask' : transport_port }, |
| 'of_oxm_udp_src' : { 'value' : transport_port }, |
| 'of_oxm_udp_src_masked' : { 'value' : transport_port, 'value_mask' : transport_port }, |
| 'of_oxm_udp_dst' : { 'value' : transport_port }, |
| 'of_oxm_udp_dst_masked' : { 'value' : transport_port, 'value_mask' : transport_port }, |
| 'of_oxm_sctp_src' : { 'value' : transport_port }, |
| 'of_oxm_sctp_src_masked' : { 'value' : transport_port, 'value_mask' : transport_port }, |
| 'of_oxm_sctp_dst' : { 'value' : transport_port }, |
| 'of_oxm_sctp_dst_masked' : { 'value' : transport_port, 'value_mask' : transport_port }, |
| 'of_oxm_eth_type' : { 'value' : eth_type }, |
| 'of_oxm_eth_type_masked' : { 'value' : eth_type, 'value_mask' : eth_type }, |
| 'of_oxm_vlan_vid' : { 'value' : vlan_vid }, |
| 'of_oxm_vlan_vid_masked' : { 'value' : vlan_vid, 'value_mask' : vlan_vid }, |
| 'of_oxm_vlan_pcp' : { 'value' : vlan_pcp }, |
| 'of_oxm_vlan_pcp_masked' : { 'value' : vlan_pcp, 'value_mask' : vlan_pcp }, |
| 'of_oxm_ip_dscp' : { 'value' : ip_dscp }, |
| 'of_oxm_ip_dscp_masked' : { 'value' : ip_dscp, 'value_mask' : ip_dscp }, |
| 'of_oxm_ip_ecn' : { 'value' : ip_ecn }, |
| 'of_oxm_ip_ecn_masked' : { 'value' : ip_ecn, 'value_mask' : ip_ecn }, |
| 'of_oxm_ip_proto' : { 'value' : ip_proto }, |
| 'of_oxm_ip_proto_masked' : { 'value' : ip_proto, 'value_mask' : ip_proto }, |
| 'of_oxm_icmpv4_type' : { 'value' : icmpv4_type }, |
| 'of_oxm_icmpv4_type_masked' : { 'value' : icmpv4_type, 'value_mask' : icmpv4_type }, |
| 'of_oxm_icmpv4_code' : { 'value' : icmpv4_code }, |
| 'of_oxm_icmpv4_code_masked' : { 'value' : icmpv4_code, 'value_mask' : icmpv4_code }, |
| 'of_oxm_arp_op' : { 'value' : arp_op }, |
| 'of_oxm_arp_op_masked' : { 'value' : arp_op, 'value_mask' : arp_op }, |
| 'of_oxm_arp_spa' : { 'value' : ipv4 }, |
| 'of_oxm_arp_spa_masked' : { 'value' : ipv4, 'value_mask' : ipv4 }, |
| 'of_oxm_arp_tpa' : { 'value' : ipv4 }, |
| 'of_oxm_arp_tpa_masked' : { 'value' : ipv4, 'value_mask' : ipv4 }, |
| 'of_oxm_ipv6_flabel' : { 'value' : ipv6_flabel }, |
| 'of_oxm_ipv6_flabel_masked' : { 'value' : ipv6_flabel, 'value_mask' : ipv6_flabel }, |
| 'of_oxm_metadata' : { 'value' : metadata }, |
| 'of_oxm_metadata_masked' : { 'value' : metadata, 'value_mask' : metadata }, |
| |
| 'of_oxm_icmpv6_code' : { 'value' : u8obj }, |
| 'of_oxm_icmpv6_code_masked' : { 'value' : u8obj, 'value_mask' : u8obj }, |
| 'of_oxm_icmpv6_type' : { 'value' : u8obj }, |
| 'of_oxm_icmpv6_type_masked' : { 'value' : u8obj, 'value_mask' : u8obj }, |
| 'of_oxm_mpls_label' : { 'value' : u32obj }, |
| 'of_oxm_mpls_label_masked' : { 'value' : u32obj, 'value_mask' : u32obj }, |
| 'of_oxm_mpls_tc' : { 'value' : u8obj }, |
| 'of_oxm_mpls_tc_masked' : { 'value' : u8obj, 'value_mask' : u8obj }, |
| |
| 'of_table_stats_entry': { 'wildcards': table_stats_wildcards }, |
| 'of_match_v1': { 'vlan_vid' : vlan_vid, 'vlan_pcp': vlan_pcp, |
| 'eth_type': eth_type, 'ip_dscp': ip_dscp, 'ip_proto': ip_proto, |
| 'tcp_src': transport_port, 'tcp_dst': transport_port |
| } |
| } |
| |
| |
| @memoize |
| def enum_java_types(): |
| enum_types = {} |
| |
| for protocol in of_g.ir.values(): |
| for enum in protocol.enums: |
| java_name = name_c_to_caps_camel(re.sub(r'_t$', "", enum.name)) |
| if enum.is_bitmask: |
| java_type = "Set<{}>".format(java_name) |
| default_value = "ImmutableSet.<{}>of()".format(java_name) |
| else: |
| java_type = java_name |
| default_value = "null" |
| enum_types[enum.name] = \ |
| JType(java_type)\ |
| .op(read="{}SerializerVer$version.readFrom(bb)".format(java_name), |
| write="{}SerializerVer$version.writeTo(bb, $name)".format(java_name), |
| default=default_value) |
| return enum_types |
| |
| def make_match_field_jtype(sub_type_name="?"): |
| return JType("MatchField<{}>".format(sub_type_name)) |
| |
| |
| # Create a default mapping for a list type. Type defauls to List<${java_mapping_of_name}> |
| def make_standard_list_jtype(c_type): |
| m = re.match(r'list\(of_([a-zA-Z_]+)_t\)', c_type) |
| if not m: |
| raise Exception("Not a recgonized standard list type declaration: %s" % c_type) |
| base_name = m.group(1) |
| java_base_name = name_c_to_caps_camel(base_name) |
| |
| # read op assumes the class has a public final static field READER that implements |
| # OFMessageReader<$class> i.e., can deserialize an instance of class from a ChannelBuffer |
| # write op assumes class implements Writeable |
| return JType("List<OF{}>".format(java_base_name)) \ |
| .op( |
| read= 'ChannelUtils.readList(bb, $length, OF{}Ver$version.READER)'.format(java_base_name), \ |
| write='ChannelUtils.writeList(bb, $name)', |
| default="ImmutableList.<OF{}>of()".format(java_base_name) |
| ) |
| |
| |
| |
| #### main entry point for conversion of LOXI types (c_types) Java types. |
| # FIXME: This badly needs a refactoring |
| |
| def convert_to_jtype(obj_name, field_name, c_type): |
| """ Convert from a C type ("uint_32") to a java type ("U32") |
| and return a JType object with the size, internal type, and marshalling functions""" |
| if obj_name in exceptions and field_name in exceptions[obj_name]: |
| return exceptions[obj_name][field_name] |
| elif ( obj_name == "of_header" or loxi_utils.class_is_message(obj_name)) and field_name == "type" and c_type == "uint8_t": |
| return JType("OFType", 'byte') \ |
| .op(read='bb.readByte()', write='bb.writeByte($name)') |
| elif field_name == "type" and re.match(r'of_action.*', obj_name): |
| return JType("OFActionType", 'short') \ |
| .op(read='bb.readShort()', write='bb.writeShort($name)', pub_type=False)\ |
| .op(read="OFActionTypeSerializerVer$version.readFrom(bb)", write="OFActionTypeSerializerVer$version.writeTo(bb, $name)", pub_type=True) |
| elif field_name == "version" and c_type == "uint8_t": |
| return JType("OFVersion", 'byte') \ |
| .op(read='bb.readByte()', write='bb.writeByte($name)') |
| elif field_name == "buffer_id" and c_type == "uint32_t": |
| return JType("OFBufferId") \ |
| .op(read="OFBufferId.of(bb.readInt())", write="bb.writeInt($name.getInt())", default="OFBufferId.NO_BUFFER") |
| elif c_type in default_mtype_to_jtype_convert_map: |
| return default_mtype_to_jtype_convert_map[c_type] |
| elif re.match(r'list\(of_([a-zA-Z_]+)_t\)', c_type): |
| return make_standard_list_jtype(c_type) |
| elif c_type in enum_java_types(): |
| return enum_java_types()[c_type] |
| else: |
| print "WARN: Couldn't find java type conversion for '%s' in %s:%s" % (c_type, obj_name, field_name) |
| jtype = name_c_to_caps_camel(re.sub(r'_t$', "", c_type)) |
| return JType(jtype) |
| |
| |
| #### Enum specific wiretype definitions |
| enum_wire_types = { |
| "uint8_t": JType("byte").op(read="bb.readByte()", write="bb.writeByte($name)"), |
| "uint16_t": JType("short").op(read="bb.readShort()", write="bb.writeShort($name)"), |
| "uint32_t": JType("int").op(read="bb.readInt()", write="bb.writeInt($name)"), |
| "uint64_t": JType("long").op(read="bb.readLong()", write="bb.writeLong($name)"), |
| } |
| |
| def convert_enum_wire_type_to_jtype(wire_type): |
| return enum_wire_types[wire_type] |