source: osm/applications/editors/josm/plugins/seachart/src/s57/S57dat.java@ 31734

Last change on this file since 31734 was 31731, checked in by malcolmh, 10 years ago

[seachart] updates
File size: 20.9 KB
Line 
1/* Copyright 2014 Malcolm Herring
2 *
3 * This is free software: you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation, version 3 of the License.
6 *
7 * For a copy of the GNU General Public License, see <http://www.gnu.org/licenses/>.
8 */
9
10package s57;
11
12import java.io.UnsupportedEncodingException;
13import java.util.*;
14
15public class S57dat { // S57 ENC file fields lookup tables & methods
16
17 public static class S57conv {
18 int asc; // 0=A(), 1+=A(n)
19 int bin; // 0=ASCII, +ve=b1n(unsigned LE), -ve=b2n(signed LE), n>8=b1(n/8)(unsigned BE)
20 S57conv(int a, int b) {
21 asc = a; bin = b;
22 }
23 }
24
25 public enum S57subf { I8RN, RCNM, RCID, EXPP, INTU, DSNM, EDTN, UPDN, UADT, ISDT, STED, PRSP, PSDN, PRED, PROF, AGEN, COMT, DSTR, AALL, NALL, NOMR, NOCR, NOGR, NOLR, NOIN, NOCN,
26 NOED, NOFA, HDAT, VDAT, SDAT, CSCL, DUNI, HUNI, PUNI, COUN, COMF, SOMF, PROJ, PRP1, PRP2, PRP3, PRP4, FEAS, FNOR, FPMF, RPID, RYCO, RXCO, CURP, RXVL, RYVL, PRCO, ESDT,
27 LSDT, DCRT, CODT, PACC, HACC, SACC, FILE, LFIL, VOLM, IMPL, SLAT, WLON, NLAT, ELON, CRCS, NAM1, NAM2, OORA, OAAC, OACO, OALL, OATY, DEFN, AUTH, RFTP, RFVL, ATLB, ATDO,
28 ADMU, ADFT, RAVA, DVAL, DVSD, OBLB, ASET, PRIM, GRUP, OBJL, RVER, RUIN, FIDN, FIDS, ATTL, ATVL, FFUI, FFIX, NFPT, LNAM, RIND, FSUI, FSIX, NSPT, NAME, ORNT, USAG, MASK,
29 VPUI, VPIX, NVPT, TOPI, CCUI, CCIX, CCNC, YCOO, XCOO, VE3D, ATYP, SURF, ORDR, RESO, STPT, CTPT, ENPT, CDPM, CDPR }
30
31 private static final EnumMap<S57subf, S57conv> convs = new EnumMap<S57subf, S57conv>(S57subf.class);
32 static {
33 convs.put(S57subf.I8RN, new S57conv(5,2));
34 convs.put(S57subf.RCNM, new S57conv(2,1)); convs.put(S57subf.RCID, new S57conv(10,4)); convs.put(S57subf.EXPP, new S57conv(1,1));
35 convs.put(S57subf.INTU, new S57conv(1,1)); convs.put(S57subf.DSNM, new S57conv(0,0)); convs.put(S57subf.EDTN, new S57conv(0,0));
36 convs.put(S57subf.UPDN, new S57conv(0,0)); convs.put(S57subf.UADT, new S57conv(8,0)); convs.put(S57subf.ISDT, new S57conv(8,0));
37 convs.put(S57subf.STED, new S57conv(4,0)); convs.put(S57subf.PRSP, new S57conv(3,1)); convs.put(S57subf.PSDN, new S57conv(0,0));
38 convs.put(S57subf.PRED, new S57conv(0,0)); convs.put(S57subf.PROF, new S57conv(2,1)); convs.put(S57subf.AGEN, new S57conv(2,2));
39 convs.put(S57subf.COMT, new S57conv(0,0)); convs.put(S57subf.DSTR, new S57conv(2,1)); convs.put(S57subf.AALL, new S57conv(1,1));
40 convs.put(S57subf.NALL, new S57conv(1,1)); convs.put(S57subf.NOMR, new S57conv(0,4)); convs.put(S57subf.NOCR, new S57conv(0,4));
41 convs.put(S57subf.NOGR, new S57conv(0,4)); convs.put(S57subf.NOLR, new S57conv(0,4)); convs.put(S57subf.NOIN, new S57conv(0,4));
42 convs.put(S57subf.NOCN, new S57conv(0,4)); convs.put(S57subf.NOED, new S57conv(0,4)); convs.put(S57subf.NOFA, new S57conv(0,4));
43 convs.put(S57subf.HDAT, new S57conv(3,1)); convs.put(S57subf.VDAT, new S57conv(2,1)); convs.put(S57subf.SDAT, new S57conv(2,1));
44 convs.put(S57subf.CSCL, new S57conv(0,4)); convs.put(S57subf.DUNI, new S57conv(2,1)); convs.put(S57subf.HUNI, new S57conv(2,1));
45 convs.put(S57subf.PUNI, new S57conv(2,1)); convs.put(S57subf.COUN, new S57conv(2,1)); convs.put(S57subf.COMF, new S57conv(0,4));
46 convs.put(S57subf.SOMF, new S57conv(0,4)); convs.put(S57subf.PROJ, new S57conv(3,1)); convs.put(S57subf.PRP1, new S57conv(0,-4));
47 convs.put(S57subf.PRP2, new S57conv(0,-4)); convs.put(S57subf.PRP3, new S57conv(0,-4)); convs.put(S57subf.PRP4, new S57conv(0,-4));
48 convs.put(S57subf.FEAS, new S57conv(0,-4)); convs.put(S57subf.FNOR, new S57conv(0,-4)); convs.put(S57subf.FPMF, new S57conv(0,4));
49 convs.put(S57subf.RPID, new S57conv(1,1)); convs.put(S57subf.RYCO, new S57conv(0,-4)); convs.put(S57subf.RXCO, new S57conv(0,-4));
50 convs.put(S57subf.CURP, new S57conv(2,1)); convs.put(S57subf.RXVL, new S57conv(0,-4)); convs.put(S57subf.RYVL, new S57conv(0,-4));
51 convs.put(S57subf.PRCO, new S57conv(2,2)); convs.put(S57subf.ESDT, new S57conv(8,0)); convs.put(S57subf.LSDT, new S57conv(8,0));
52 convs.put(S57subf.DCRT, new S57conv(0,0)); convs.put(S57subf.CODT, new S57conv(8,0)); convs.put(S57subf.PACC, new S57conv(0,4));
53 convs.put(S57subf.HACC, new S57conv(0,4)); convs.put(S57subf.SACC, new S57conv(0,4)); convs.put(S57subf.FILE, new S57conv(0,0));
54 convs.put(S57subf.LFIL, new S57conv(0,0)); convs.put(S57subf.VOLM, new S57conv(0,0)); convs.put(S57subf.IMPL, new S57conv(3,0));
55 convs.put(S57subf.SLAT, new S57conv(0,0)); convs.put(S57subf.WLON, new S57conv(0,0)); convs.put(S57subf.NLAT, new S57conv(0,0));
56 convs.put(S57subf.ELON, new S57conv(0,0)); convs.put(S57subf.CRCS, new S57conv(0,0)); convs.put(S57subf.NAM1, new S57conv(12,5));
57 convs.put(S57subf.NAM2, new S57conv(12,5)); convs.put(S57subf.OORA, new S57conv(1,1)); convs.put(S57subf.OAAC, new S57conv(6,0));
58 convs.put(S57subf.OACO, new S57conv(5,2)); convs.put(S57subf.OALL, new S57conv(0,0)); convs.put(S57subf.OATY, new S57conv(1,1));
59 convs.put(S57subf.DEFN, new S57conv(0,0)); convs.put(S57subf.AUTH, new S57conv(2,2)); convs.put(S57subf.RFTP, new S57conv(2,1));
60 convs.put(S57subf.RFVL, new S57conv(0,0)); convs.put(S57subf.ATLB, new S57conv(5,2)); convs.put(S57subf.ATDO, new S57conv(1,1));
61 convs.put(S57subf.ADMU, new S57conv(0,0)); convs.put(S57subf.ADFT, new S57conv(0,0)); convs.put(S57subf.RAVA, new S57conv(1,1));
62 convs.put(S57subf.DVAL, new S57conv(0,0)); convs.put(S57subf.DVSD, new S57conv(0,0)); convs.put(S57subf.OBLB, new S57conv(5,2));
63 convs.put(S57subf.ASET, new S57conv(1,1)); convs.put(S57subf.PRIM, new S57conv(1,1)); convs.put(S57subf.GRUP, new S57conv(3,1));
64 convs.put(S57subf.OBJL, new S57conv(5,2)); convs.put(S57subf.RVER, new S57conv(3,2)); convs.put(S57subf.RUIN, new S57conv(1,1));
65 convs.put(S57subf.FIDN, new S57conv(10,4)); convs.put(S57subf.FIDS, new S57conv(5,2)); convs.put(S57subf.ATTL, new S57conv(5,2));
66 convs.put(S57subf.ATVL, new S57conv(0,0)); convs.put(S57subf.FFUI, new S57conv(1,1)); convs.put(S57subf.FFIX, new S57conv(0,2));
67 convs.put(S57subf.NFPT, new S57conv(0,2)); convs.put(S57subf.LNAM, new S57conv(17,8)); convs.put(S57subf.RIND, new S57conv(0,1));
68 convs.put(S57subf.FSUI, new S57conv(1,1)); convs.put(S57subf.FSIX, new S57conv(0,2)); convs.put(S57subf.NSPT, new S57conv(0,2));
69 convs.put(S57subf.NAME, new S57conv(12,5)); convs.put(S57subf.ORNT, new S57conv(1,1)); convs.put(S57subf.USAG, new S57conv(1,1));
70 convs.put(S57subf.MASK, new S57conv(1,1)); convs.put(S57subf.VPUI, new S57conv(1,1)); convs.put(S57subf.VPIX, new S57conv(0,2));
71 convs.put(S57subf.NVPT, new S57conv(0,2)); convs.put(S57subf.TOPI, new S57conv(1,1)); convs.put(S57subf.CCUI, new S57conv(1,1));
72 convs.put(S57subf.CCIX, new S57conv(0,2)); convs.put(S57subf.CCNC, new S57conv(0,2)); convs.put(S57subf.YCOO, new S57conv(0,-4));
73 convs.put(S57subf.XCOO, new S57conv(0,-4)); convs.put(S57subf.VE3D, new S57conv(0,-4)); convs.put(S57subf.ATYP, new S57conv(1,1));
74 convs.put(S57subf.SURF, new S57conv(1,1)); convs.put(S57subf.ORDR, new S57conv(1,1)); convs.put(S57subf.RESO, new S57conv(0,4));
75 convs.put(S57subf.STPT, new S57conv(0,0)); convs.put(S57subf.CTPT, new S57conv(0,0)); convs.put(S57subf.ENPT, new S57conv(0,0));
76 convs.put(S57subf.CDPM, new S57conv(0,0)); convs.put(S57subf.CDPR, new S57conv(0,0));
77 }
78
79 public enum S57field { I8RI, DSID, DSSI, DSPM, DSPR, DSRC, DSHT, DSAC, CATD, CATX, DDDF, DDDR, DDDI, DDOM, DDRF, DDSI, DDSC,
80 FRID, FOID, LNAM, ATTF, NATF, FFPC, FFPT, FSPC, FSPT, VRID, ATTV, VRPC, VRPT, SGCC, SG2D, SG3D, ARCC, AR2D, EL2D, CT2D }
81
82 private static ArrayList<S57subf> S57i8ri = new ArrayList<S57subf>(Arrays.asList(S57subf.I8RN));
83 private static ArrayList<S57subf> S57dsid = new ArrayList<S57subf>(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.EXPP, S57subf.INTU, S57subf.DSNM, S57subf.EDTN, S57subf.UPDN,
84 S57subf.UADT, S57subf.ISDT, S57subf.STED, S57subf.PRSP, S57subf.PSDN, S57subf.PRED, S57subf.PROF, S57subf.AGEN, S57subf.COMT));
85 private static ArrayList<S57subf> S57dssi = new ArrayList<S57subf>(Arrays.asList(S57subf.DSTR, S57subf.AALL, S57subf.NALL, S57subf.NOMR, S57subf.NOCR, S57subf.NOGR, S57subf.NOLR,
86 S57subf.NOIN, S57subf.NOCN, S57subf.NOED, S57subf.NOFA ));
87 private static ArrayList<S57subf> S57dspm = new ArrayList<S57subf>(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.HDAT, S57subf.VDAT, S57subf.SDAT, S57subf.CSCL, S57subf.DUNI,
88 S57subf.HUNI, S57subf.PUNI, S57subf.COUN, S57subf.COMF, S57subf.SOMF, S57subf.COMT ));
89 private static ArrayList<S57subf> S57dspr = new ArrayList<S57subf>(Arrays.asList(S57subf.PROJ, S57subf.PRP1, S57subf.PRP2, S57subf.PRP3, S57subf.PRP4, S57subf.FEAS, S57subf.FNOR,
90 S57subf.FPMF, S57subf.COMT ));
91 private static ArrayList<S57subf> S57dsrc = new ArrayList<S57subf>(Arrays.asList(S57subf.RPID, S57subf.RYCO, S57subf.RXCO, S57subf.CURP, S57subf.FPMF, S57subf.RXVL, S57subf.RYVL,
92 S57subf.COMT ));
93 private static ArrayList<S57subf> S57dsht = new ArrayList<S57subf>(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.PRCO, S57subf.ESDT, S57subf.LSDT, S57subf.DCRT, S57subf.CODT, S57subf.COMT ));
94 private static ArrayList<S57subf> S57dsac = new ArrayList<S57subf>(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.PACC, S57subf.HACC, S57subf.SACC, S57subf.FPMF, S57subf.COMT ));
95 private static ArrayList<S57subf> S57catd = new ArrayList<S57subf>(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.FILE, S57subf.LFIL, S57subf.VOLM, S57subf.IMPL, S57subf.SLAT,
96 S57subf.WLON, S57subf.NLAT, S57subf.ELON, S57subf.CRCS, S57subf.COMT ));
97 private static ArrayList<S57subf> S57catx = new ArrayList<S57subf>(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.NAM1, S57subf.NAM2, S57subf.COMT ));
98 private static ArrayList<S57subf> S57dddf = new ArrayList<S57subf>(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.OORA, S57subf.OAAC, S57subf.OACO, S57subf.OALL, S57subf.OATY,
99 S57subf.DEFN, S57subf.AUTH, S57subf.COMT ));
100 private static ArrayList<S57subf> S57dddr = new ArrayList<S57subf>(Arrays.asList(S57subf.RFTP, S57subf.RFVL ));
101 private static ArrayList<S57subf> S57dddi = new ArrayList<S57subf>(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.ATLB, S57subf.ATDO, S57subf.ADMU, S57subf.ADFT, S57subf.AUTH, S57subf.COMT ));
102 private static ArrayList<S57subf> S57ddom = new ArrayList<S57subf>(Arrays.asList(S57subf.RAVA, S57subf.DVAL, S57subf.DVSD, S57subf.DEFN, S57subf.AUTH ));
103 private static ArrayList<S57subf> S57ddrf = new ArrayList<S57subf>(Arrays.asList(S57subf.RFTP, S57subf.RFVL ));
104 private static ArrayList<S57subf> S57ddsi = new ArrayList<S57subf>(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.OBLB ));
105 private static ArrayList<S57subf> S57ddsc = new ArrayList<S57subf>(Arrays.asList(S57subf.ATLB, S57subf.ASET, S57subf.AUTH ));
106 private static ArrayList<S57subf> S57frid = new ArrayList<S57subf>(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.PRIM, S57subf.GRUP, S57subf.OBJL, S57subf.RVER, S57subf.RUIN ));
107 private static ArrayList<S57subf> S57foid = new ArrayList<S57subf>(Arrays.asList(S57subf.AGEN, S57subf.FIDN, S57subf.FIDS ));
108 private static ArrayList<S57subf> S57lnam = new ArrayList<S57subf>(Arrays.asList(S57subf.LNAM));
109 private static ArrayList<S57subf> S57attf = new ArrayList<S57subf>(Arrays.asList(S57subf.ATTL, S57subf.ATVL ));
110 private static ArrayList<S57subf> S57natf = new ArrayList<S57subf>(Arrays.asList(S57subf.ATTL, S57subf.ATVL ));
111 private static ArrayList<S57subf> S57ffpc = new ArrayList<S57subf>(Arrays.asList(S57subf.FFUI, S57subf.FFIX, S57subf.NFPT ));
112 private static ArrayList<S57subf> S57ffpt = new ArrayList<S57subf>(Arrays.asList(S57subf.LNAM, S57subf.RIND, S57subf.COMT ));
113 private static ArrayList<S57subf> S57fspc = new ArrayList<S57subf>(Arrays.asList(S57subf.FSUI, S57subf.FSIX, S57subf.NSPT ));
114 private static ArrayList<S57subf> S57fspt = new ArrayList<S57subf>(Arrays.asList(S57subf.NAME, S57subf.ORNT, S57subf.USAG, S57subf.MASK ));
115 private static ArrayList<S57subf> S57vrid = new ArrayList<S57subf>(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.RVER, S57subf.RUIN ));
116 private static ArrayList<S57subf> S57attv = new ArrayList<S57subf>(Arrays.asList(S57subf.ATTL, S57subf.ATVL ));
117 private static ArrayList<S57subf> S57vrpc = new ArrayList<S57subf>(Arrays.asList(S57subf.VPUI, S57subf.VPIX, S57subf.NVPT ));
118 private static ArrayList<S57subf> S57vrpt = new ArrayList<S57subf>(Arrays.asList(S57subf.NAME, S57subf.ORNT, S57subf.USAG, S57subf.TOPI, S57subf.MASK ));
119 private static ArrayList<S57subf> S57sgcc = new ArrayList<S57subf>(Arrays.asList(S57subf.CCUI, S57subf.CCIX, S57subf.CCNC ));
120 private static ArrayList<S57subf> S57sg2d = new ArrayList<S57subf>(Arrays.asList(S57subf.YCOO, S57subf.XCOO ));
121 private static ArrayList<S57subf> S57sg3d = new ArrayList<S57subf>(Arrays.asList(S57subf.YCOO, S57subf.XCOO, S57subf.VE3D ));
122 private static ArrayList<S57subf> S57arcc = new ArrayList<S57subf>(Arrays.asList(S57subf.ATYP, S57subf.SURF, S57subf.ORDR, S57subf.RESO, S57subf.FPMF ));
123 private static ArrayList<S57subf> S57ar2d = new ArrayList<S57subf>(Arrays.asList(S57subf.STPT, S57subf.CTPT, S57subf.ENPT, S57subf.YCOO, S57subf.XCOO ));
124 private static ArrayList<S57subf> S57el2d = new ArrayList<S57subf>(Arrays.asList(S57subf.STPT, S57subf.CTPT, S57subf.ENPT, S57subf.CDPM, S57subf.CDPR, S57subf.YCOO, S57subf.XCOO ));
125 private static ArrayList<S57subf> S57ct2d = new ArrayList<S57subf>(Arrays.asList(S57subf.YCOO, S57subf.XCOO ));
126
127 private static final EnumMap<S57field, ArrayList<S57subf>> fields = new EnumMap<S57field, ArrayList<S57subf>>(S57field.class);
128 static {
129 fields.put(S57field.I8RI, S57i8ri);
130 fields.put(S57field.DSID, S57dsid); fields.put(S57field.DSSI, S57dssi); fields.put(S57field.DSPM, S57dspm); fields.put(S57field.DSPR, S57dspr);
131 fields.put(S57field.DSRC, S57dsrc); fields.put(S57field.DSHT, S57dsht); fields.put(S57field.DSAC, S57dsac); fields.put(S57field.CATD, S57catd);
132 fields.put(S57field.CATX, S57catx); fields.put(S57field.DDDF, S57dddf); fields.put(S57field.DDDR, S57dddr); fields.put(S57field.DDDI, S57dddi);
133 fields.put(S57field.DDOM, S57ddom); fields.put(S57field.DDRF, S57ddrf); fields.put(S57field.DDSI, S57ddsi); fields.put(S57field.DDSC, S57ddsc);
134 fields.put(S57field.FRID, S57frid); fields.put(S57field.FOID, S57foid); fields.put(S57field.LNAM, S57lnam); fields.put(S57field.ATTF, S57attf);
135 fields.put(S57field.NATF, S57natf); fields.put(S57field.FFPC, S57ffpc); fields.put(S57field.FFPT, S57ffpt); fields.put(S57field.FFPC, S57fspc);
136 fields.put(S57field.FSPT, S57fspt); fields.put(S57field.VRID, S57vrid); fields.put(S57field.ATTV, S57attv); fields.put(S57field.VRPC, S57vrpc);
137 fields.put(S57field.VRPT, S57vrpt); fields.put(S57field.SGCC, S57sgcc); fields.put(S57field.SG2D, S57sg2d); fields.put(S57field.SG3D, S57sg3d);
138 fields.put(S57field.ARCC, S57arcc); fields.put(S57field.AR2D, S57ar2d); fields.put(S57field.EL2D, S57el2d); fields.put(S57field.CT2D, S57ct2d);
139 }
140
141 private static byte[] leader = {'0', '0', '0', '0', '0', ' ', 'D', ' ', ' ', ' ', ' ', ' ', '0', '0', '0', '0', '0', ' ', ' ', ' ', '0', '0', '0', '4'};
142 private static byte[] buffer;
143 private static int offset;
144 private static int maxoff;
145 private static int index;
146 private static S57field field;
147 private static String aall = "US-ASCII";
148 private static String nall = "US-ASCII";
149 public static int rnum;
150
151 private static S57conv findSubf(S57subf subf) {
152 ArrayList<S57subf> subs = fields.get(field);
153 boolean wrap = false;
154 while (true) {
155 if (index == subs.size()) {
156 if (!wrap) {
157 index = 0;
158 wrap = true;
159 } else {
160 System.out.println("ERROR: Subfield not found " + subf.name() + " in " + field.name() + " in record " + rnum);
161 System.exit(-1);
162 }
163 }
164 S57subf sub = subs.get(index++);
165 S57conv conv = convs.get(sub);
166 if (sub == subf) {
167 return conv;
168 } else {
169 offset += (conv.bin != 0) ? ((conv.bin < 8) ? Math.abs(conv.bin) : conv.bin / 8) : conv.asc;
170 }
171 }
172 }
173
174 public static void setField(byte[] buf, int off, S57field fld, int len) {
175 buffer = buf;
176 offset = off;
177 maxoff = off + len - 1;
178 field = fld;
179 index = 0;
180 }
181
182 public static boolean more() {
183 return (offset < maxoff);
184 }
185
186 public static Object decSubf(byte[] buf, int off, S57field fld, S57subf subf) {
187 buffer = buf;
188 offset = off;
189 index = 0;
190 return decSubf(fld, subf);
191 }
192
193 public static Object decSubf(S57field fld, S57subf subf) {
194 field = fld;
195 index = 0;
196 return decSubf(subf);
197 }
198
199 public static Object decSubf(S57subf subf) {
200 S57conv conv = findSubf(subf);
201 if (conv.bin == 0) {
202 String str = "";
203 int i = 0;
204 if (conv.asc == 0) {
205 for (i=0; buffer[offset+i] != 0x1f; i++) {}
206 try {
207 String charset = "";
208 if (field == S57field.ATTF) charset = aall;
209 else if (field == S57field.NATF) charset = nall;
210 else charset = "US-ASCII";
211 str = new String(buffer, offset, i, charset);
212 } catch (UnsupportedEncodingException e) {
213 e.printStackTrace();
214 }
215 offset += i + 1;
216 } else {
217 str = new String(buffer, offset, conv.asc);
218 offset += conv.asc;
219 }
220 return str;
221 } else {
222 int f = Math.abs(conv.bin);
223 if (f < 8) {
224 long val = buffer[offset + --f];
225 if (conv.bin > 0)
226 val &= 0xff;
227 while (f > 0) {
228 val = (val << 8) + (buffer[offset + --f] & 0xff);
229 }
230 offset += Math.abs(conv.bin);
231 if ((subf == S57subf.AALL) || (subf == S57subf.NALL)) {
232 String charset = "";
233 switch ((int)val) {
234 case 0:
235 charset = "US-ASCII";
236 break;
237 case 1:
238 charset = "ISO-8859-1";
239 break;
240 case 2:
241 charset = "UTF-16LE";
242 break;
243 }
244 if (subf == S57subf.NALL) {
245 nall = charset;
246 } else {
247 aall = charset;
248 }
249 }
250 return val;
251 } else {
252 f /= 8;
253 long val = 0;
254 for (int i = 0; i < f; i++) {
255 val = (val << 8) + (buffer[offset++] & 0xff);
256 }
257 return val;
258 }
259 }
260 }
261
262 public static byte[] encSubf(S57subf subf, Object val) {
263 S57conv conv = convs.get(subf);
264 if (conv.bin == 0) {
265 String sval = "";
266 if (val instanceof String) {
267 sval = (String) val;
268 } else if (val instanceof Long) {
269 sval = ((Long)val).toString();
270 } else if (val instanceof Double) {
271 sval = ((Double)val).toString();
272 }
273 index = sval.length();
274 try {
275 buffer = ((String) sval + " ").getBytes("ISO-8859-1");
276 } catch (Exception e) {
277 System.err.println(e.getMessage());
278 System.exit(-1);
279 }
280 if (conv.asc == 0) {
281 buffer[index] = 0x01f;
282 } else {
283 buffer = Arrays.copyOf(buffer, conv.asc);
284 while (index < buffer.length) {
285 buffer[index++] = ' ';
286 }
287 }
288 } else {
289 int f = Math.abs(conv.bin);
290 long lval;
291 if (val instanceof String) {
292 lval = Long.parseLong((String)val);
293 } else if (val instanceof Double) {
294 double dval = (double) val;
295 lval = (long) dval;
296 } else if (val instanceof Integer) {
297 lval = (int) val;
298 } else {
299 lval = (long) val;
300 }
301 buffer = new byte[f];
302 for (int i = 0; i < f; i++) {
303 buffer[i] = (byte) (lval & 0xff);
304 lval >>= 8;
305 }
306 }
307 return buffer;
308 }
309
310 static class Index {
311 byte[] field;
312 int length;
313 int offset;
314 Index (byte[] id, int l, int o) {
315 field = id;
316 length = l;
317 offset = o;
318 }
319 }
320
321 public static class Fparams {
322 public S57field field;
323 public Object[] params;
324 public Fparams(S57field f, Object[] p) {
325 field = f;
326 params = p;
327 }
328 };
329
330 public static byte[] encRecord(int i8rn, ArrayList<Fparams> fparams) {
331 ArrayList<Index> index = new ArrayList<Index>();
332 int offset = 3;
333 int maxlen = 3;
334 byte[] buf = encSubf(S57subf.I8RN, i8rn);
335 buf = Arrays.copyOf(buf, 3);
336 buf[2] = 0x1e;
337 index.add(new Index("0001".getBytes(), 3, 0));
338 for (Fparams sfparams : fparams) {
339 for (int ip = 0; ip < sfparams.params.length; ) {
340 for (S57subf subf : fields.get(sfparams.field)) {
341 byte[] next = encSubf(subf, sfparams.params[ip++]);
342 buf = Arrays.copyOf(buf, (buf.length + next.length));
343 System.arraycopy(next, 0, buf, (buf.length - next.length), next.length);
344 }
345 }
346 buf = Arrays.copyOf(buf, (buf.length + 1));
347 buf[buf.length-1] = 0x1e;
348 int flen = buf.length - offset;
349 index.add(new Index(sfparams.field.toString().getBytes(), flen, offset));
350 maxlen = (flen > maxlen) ? flen : maxlen;
351 offset += flen;
352 }
353 int mlen = String.valueOf(maxlen).length();
354 String ffmt = "%0" + mlen + "d";
355 int olen = String.valueOf(offset).length();
356 String ofmt = "%0" + olen + "d";
357 int ilen = 4 + mlen + olen;
358 int isiz = (ilen * index.size()) + 1;
359 byte[] ibuf = new byte[isiz];
360 int i = 0;
361 for (Index item : index) {
362 for (byte ch : item.field) {
363 ibuf[i++] = ch;
364 }
365 byte[] digits = String.format(ffmt, item.length).getBytes();
366 for (byte ch : digits) {
367 ibuf[i++] = ch;
368 }
369 digits = String.format(ofmt, item.offset).getBytes();
370 for (byte ch : digits) {
371 ibuf[i++] = ch;
372 }
373 }
374 ibuf[i] = 0x1e;
375 byte[] fbuf = Arrays.copyOf(leader, (leader.length + ibuf.length + buf.length));
376 System.arraycopy(ibuf, 0, fbuf, leader.length, ibuf.length);
377 System.arraycopy(buf, 0, fbuf, (leader.length + ibuf.length), buf.length);
378 fbuf[20] = (byte)(mlen + 0x30);
379 fbuf[21] = (byte)(olen + 0x30);
380 System.arraycopy(String.format("%05d", fbuf.length).getBytes(), 0, fbuf, 0, 5);
381 System.arraycopy(String.format("%05d", (leader.length + ibuf.length)).getBytes(), 0, fbuf, 12, 5);
382 return fbuf;
383 }
384
385}
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