/* Copyright 2014 Malcolm Herring
*
* This is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3 of the License.
*
* For a copy of the GNU General Public License, see .
*/
package s57;
import java.io.UnsupportedEncodingException;
import java.util.*;
public class S57dat { // S57 ENC file fields lookup tables & methods
public static class S57conv {
int asc; // 0=A(), 1+=A(n)
int bin; // 0=ASCII, +ve=b1n(unsigned LE), -ve=b2n(signed LE), n>8=b1(n/8)(unsigned BE)
S57conv(int a, int b) {
asc = a; bin = b;
}
}
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,
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,
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,
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,
VPUI, VPIX, NVPT, TOPI, CCUI, CCIX, CCNC, YCOO, XCOO, VE3D, ATYP, SURF, ORDR, RESO, STPT, CTPT, ENPT, CDPM, CDPR }
private static final EnumMap convs = new EnumMap(S57subf.class);
static {
convs.put(S57subf.I8RN, new S57conv(5,2));
convs.put(S57subf.RCNM, new S57conv(2,1)); convs.put(S57subf.RCID, new S57conv(10,4)); convs.put(S57subf.EXPP, new S57conv(1,1));
convs.put(S57subf.INTU, new S57conv(1,1)); convs.put(S57subf.DSNM, new S57conv(0,0)); convs.put(S57subf.EDTN, new S57conv(0,0));
convs.put(S57subf.UPDN, new S57conv(0,0)); convs.put(S57subf.UADT, new S57conv(8,0)); convs.put(S57subf.ISDT, new S57conv(8,0));
convs.put(S57subf.STED, new S57conv(4,0)); convs.put(S57subf.PRSP, new S57conv(3,1)); convs.put(S57subf.PSDN, new S57conv(0,0));
convs.put(S57subf.PRED, new S57conv(0,0)); convs.put(S57subf.PROF, new S57conv(2,1)); convs.put(S57subf.AGEN, new S57conv(2,2));
convs.put(S57subf.COMT, new S57conv(0,0)); convs.put(S57subf.DSTR, new S57conv(2,1)); convs.put(S57subf.AALL, new S57conv(1,1));
convs.put(S57subf.NALL, new S57conv(1,1)); convs.put(S57subf.NOMR, new S57conv(0,4)); convs.put(S57subf.NOCR, new S57conv(0,4));
convs.put(S57subf.NOGR, new S57conv(0,4)); convs.put(S57subf.NOLR, new S57conv(0,4)); convs.put(S57subf.NOIN, new S57conv(0,4));
convs.put(S57subf.NOCN, new S57conv(0,4)); convs.put(S57subf.NOED, new S57conv(0,4)); convs.put(S57subf.NOFA, new S57conv(0,4));
convs.put(S57subf.HDAT, new S57conv(3,1)); convs.put(S57subf.VDAT, new S57conv(2,1)); convs.put(S57subf.SDAT, new S57conv(2,1));
convs.put(S57subf.CSCL, new S57conv(0,4)); convs.put(S57subf.DUNI, new S57conv(2,1)); convs.put(S57subf.HUNI, new S57conv(2,1));
convs.put(S57subf.PUNI, new S57conv(2,1)); convs.put(S57subf.COUN, new S57conv(2,1)); convs.put(S57subf.COMF, new S57conv(0,4));
convs.put(S57subf.SOMF, new S57conv(0,4)); convs.put(S57subf.PROJ, new S57conv(3,1)); convs.put(S57subf.PRP1, new S57conv(0,-4));
convs.put(S57subf.PRP2, new S57conv(0,-4)); convs.put(S57subf.PRP3, new S57conv(0,-4)); convs.put(S57subf.PRP4, new S57conv(0,-4));
convs.put(S57subf.FEAS, new S57conv(0,-4)); convs.put(S57subf.FNOR, new S57conv(0,-4)); convs.put(S57subf.FPMF, new S57conv(0,4));
convs.put(S57subf.RPID, new S57conv(1,1)); convs.put(S57subf.RYCO, new S57conv(0,-4)); convs.put(S57subf.RXCO, new S57conv(0,-4));
convs.put(S57subf.CURP, new S57conv(2,1)); convs.put(S57subf.RXVL, new S57conv(0,-4)); convs.put(S57subf.RYVL, new S57conv(0,-4));
convs.put(S57subf.PRCO, new S57conv(2,2)); convs.put(S57subf.ESDT, new S57conv(8,0)); convs.put(S57subf.LSDT, new S57conv(8,0));
convs.put(S57subf.DCRT, new S57conv(0,0)); convs.put(S57subf.CODT, new S57conv(8,0)); convs.put(S57subf.PACC, new S57conv(0,4));
convs.put(S57subf.HACC, new S57conv(0,4)); convs.put(S57subf.SACC, new S57conv(0,4)); convs.put(S57subf.FILE, new S57conv(0,0));
convs.put(S57subf.LFIL, new S57conv(0,0)); convs.put(S57subf.VOLM, new S57conv(0,0)); convs.put(S57subf.IMPL, new S57conv(3,0));
convs.put(S57subf.SLAT, new S57conv(0,0)); convs.put(S57subf.WLON, new S57conv(0,0)); convs.put(S57subf.NLAT, new S57conv(0,0));
convs.put(S57subf.ELON, new S57conv(0,0)); convs.put(S57subf.CRCS, new S57conv(0,0)); convs.put(S57subf.NAM1, new S57conv(12,5));
convs.put(S57subf.NAM2, new S57conv(12,5)); convs.put(S57subf.OORA, new S57conv(1,1)); convs.put(S57subf.OAAC, new S57conv(6,0));
convs.put(S57subf.OACO, new S57conv(5,2)); convs.put(S57subf.OALL, new S57conv(0,0)); convs.put(S57subf.OATY, new S57conv(1,1));
convs.put(S57subf.DEFN, new S57conv(0,0)); convs.put(S57subf.AUTH, new S57conv(2,2)); convs.put(S57subf.RFTP, new S57conv(2,1));
convs.put(S57subf.RFVL, new S57conv(0,0)); convs.put(S57subf.ATLB, new S57conv(5,2)); convs.put(S57subf.ATDO, new S57conv(1,1));
convs.put(S57subf.ADMU, new S57conv(0,0)); convs.put(S57subf.ADFT, new S57conv(0,0)); convs.put(S57subf.RAVA, new S57conv(1,1));
convs.put(S57subf.DVAL, new S57conv(0,0)); convs.put(S57subf.DVSD, new S57conv(0,0)); convs.put(S57subf.OBLB, new S57conv(5,2));
convs.put(S57subf.ASET, new S57conv(1,1)); convs.put(S57subf.PRIM, new S57conv(1,1)); convs.put(S57subf.GRUP, new S57conv(3,1));
convs.put(S57subf.OBJL, new S57conv(5,2)); convs.put(S57subf.RVER, new S57conv(3,2)); convs.put(S57subf.RUIN, new S57conv(1,1));
convs.put(S57subf.FIDN, new S57conv(10,4)); convs.put(S57subf.FIDS, new S57conv(5,2)); convs.put(S57subf.ATTL, new S57conv(5,2));
convs.put(S57subf.ATVL, new S57conv(0,0)); convs.put(S57subf.FFUI, new S57conv(1,1)); convs.put(S57subf.FFIX, new S57conv(0,2));
convs.put(S57subf.NFPT, new S57conv(0,2)); convs.put(S57subf.LNAM, new S57conv(17,8)); convs.put(S57subf.RIND, new S57conv(0,1));
convs.put(S57subf.FSUI, new S57conv(1,1)); convs.put(S57subf.FSIX, new S57conv(0,2)); convs.put(S57subf.NSPT, new S57conv(0,2));
convs.put(S57subf.NAME, new S57conv(12,5)); convs.put(S57subf.ORNT, new S57conv(1,1)); convs.put(S57subf.USAG, new S57conv(1,1));
convs.put(S57subf.MASK, new S57conv(1,1)); convs.put(S57subf.VPUI, new S57conv(1,1)); convs.put(S57subf.VPIX, new S57conv(0,2));
convs.put(S57subf.NVPT, new S57conv(0,2)); convs.put(S57subf.TOPI, new S57conv(1,1)); convs.put(S57subf.CCUI, new S57conv(1,1));
convs.put(S57subf.CCIX, new S57conv(0,2)); convs.put(S57subf.CCNC, new S57conv(0,2)); convs.put(S57subf.YCOO, new S57conv(0,-4));
convs.put(S57subf.XCOO, new S57conv(0,-4)); convs.put(S57subf.VE3D, new S57conv(0,-4)); convs.put(S57subf.ATYP, new S57conv(1,1));
convs.put(S57subf.SURF, new S57conv(1,1)); convs.put(S57subf.ORDR, new S57conv(1,1)); convs.put(S57subf.RESO, new S57conv(0,4));
convs.put(S57subf.STPT, new S57conv(0,0)); convs.put(S57subf.CTPT, new S57conv(0,0)); convs.put(S57subf.ENPT, new S57conv(0,0));
convs.put(S57subf.CDPM, new S57conv(0,0)); convs.put(S57subf.CDPR, new S57conv(0,0));
}
public enum S57field { I8RI, DSID, DSSI, DSPM, DSPR, DSRC, DSHT, DSAC, CATD, CATX, DDDF, DDDR, DDDI, DDOM, DDRF, DDSI, DDSC,
FRID, FOID, LNAM, ATTF, NATF, FFPC, FFPT, FSPC, FSPT, VRID, ATTV, VRPC, VRPT, SGCC, SG2D, SG3D, ARCC, AR2D, EL2D, CT2D }
private static ArrayList S57i8ri = new ArrayList(Arrays.asList(S57subf.I8RN));
private static ArrayList S57dsid = new ArrayList(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.EXPP, S57subf.INTU, S57subf.DSNM, S57subf.EDTN, S57subf.UPDN,
S57subf.UADT, S57subf.ISDT, S57subf.STED, S57subf.PRSP, S57subf.PSDN, S57subf.PRED, S57subf.PROF, S57subf.AGEN, S57subf.COMT));
private static ArrayList S57dssi = new ArrayList(Arrays.asList(S57subf.DSTR, S57subf.AALL, S57subf.NALL, S57subf.NOMR, S57subf.NOCR, S57subf.NOGR, S57subf.NOLR,
S57subf.NOIN, S57subf.NOCN, S57subf.NOED, S57subf.NOFA ));
private static ArrayList S57dspm = new ArrayList(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.HDAT, S57subf.VDAT, S57subf.SDAT, S57subf.CSCL, S57subf.DUNI,
S57subf.HUNI, S57subf.PUNI, S57subf.COUN, S57subf.COMF, S57subf.SOMF, S57subf.COMT ));
private static ArrayList S57dspr = new ArrayList(Arrays.asList(S57subf.PROJ, S57subf.PRP1, S57subf.PRP2, S57subf.PRP3, S57subf.PRP4, S57subf.FEAS, S57subf.FNOR,
S57subf.FPMF, S57subf.COMT ));
private static ArrayList S57dsrc = new ArrayList(Arrays.asList(S57subf.RPID, S57subf.RYCO, S57subf.RXCO, S57subf.CURP, S57subf.FPMF, S57subf.RXVL, S57subf.RYVL,
S57subf.COMT ));
private static ArrayList S57dsht = new ArrayList(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.PRCO, S57subf.ESDT, S57subf.LSDT, S57subf.DCRT, S57subf.CODT, S57subf.COMT ));
private static ArrayList S57dsac = new ArrayList(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.PACC, S57subf.HACC, S57subf.SACC, S57subf.FPMF, S57subf.COMT ));
private static ArrayList S57catd = new ArrayList(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.FILE, S57subf.LFIL, S57subf.VOLM, S57subf.IMPL, S57subf.SLAT,
S57subf.WLON, S57subf.NLAT, S57subf.ELON, S57subf.CRCS, S57subf.COMT ));
private static ArrayList S57catx = new ArrayList(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.NAM1, S57subf.NAM2, S57subf.COMT ));
private static ArrayList S57dddf = new ArrayList(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.OORA, S57subf.OAAC, S57subf.OACO, S57subf.OALL, S57subf.OATY,
S57subf.DEFN, S57subf.AUTH, S57subf.COMT ));
private static ArrayList S57dddr = new ArrayList(Arrays.asList(S57subf.RFTP, S57subf.RFVL ));
private static ArrayList S57dddi = new ArrayList(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.ATLB, S57subf.ATDO, S57subf.ADMU, S57subf.ADFT, S57subf.AUTH, S57subf.COMT ));
private static ArrayList S57ddom = new ArrayList(Arrays.asList(S57subf.RAVA, S57subf.DVAL, S57subf.DVSD, S57subf.DEFN, S57subf.AUTH ));
private static ArrayList S57ddrf = new ArrayList(Arrays.asList(S57subf.RFTP, S57subf.RFVL ));
private static ArrayList S57ddsi = new ArrayList(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.OBLB ));
private static ArrayList S57ddsc = new ArrayList(Arrays.asList(S57subf.ATLB, S57subf.ASET, S57subf.AUTH ));
private static ArrayList S57frid = new ArrayList(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.PRIM, S57subf.GRUP, S57subf.OBJL, S57subf.RVER, S57subf.RUIN ));
private static ArrayList S57foid = new ArrayList(Arrays.asList(S57subf.AGEN, S57subf.FIDN, S57subf.FIDS ));
private static ArrayList S57lnam = new ArrayList(Arrays.asList(S57subf.LNAM));
private static ArrayList S57attf = new ArrayList(Arrays.asList(S57subf.ATTL, S57subf.ATVL ));
private static ArrayList S57natf = new ArrayList(Arrays.asList(S57subf.ATTL, S57subf.ATVL ));
private static ArrayList S57ffpc = new ArrayList(Arrays.asList(S57subf.FFUI, S57subf.FFIX, S57subf.NFPT ));
private static ArrayList S57ffpt = new ArrayList(Arrays.asList(S57subf.LNAM, S57subf.RIND, S57subf.COMT ));
private static ArrayList S57fspc = new ArrayList(Arrays.asList(S57subf.FSUI, S57subf.FSIX, S57subf.NSPT ));
private static ArrayList S57fspt = new ArrayList(Arrays.asList(S57subf.NAME, S57subf.ORNT, S57subf.USAG, S57subf.MASK ));
private static ArrayList S57vrid = new ArrayList(Arrays.asList(S57subf.RCNM, S57subf.RCID, S57subf.RVER, S57subf.RUIN ));
private static ArrayList S57attv = new ArrayList(Arrays.asList(S57subf.ATTL, S57subf.ATVL ));
private static ArrayList S57vrpc = new ArrayList(Arrays.asList(S57subf.VPUI, S57subf.VPIX, S57subf.NVPT ));
private static ArrayList S57vrpt = new ArrayList(Arrays.asList(S57subf.NAME, S57subf.ORNT, S57subf.USAG, S57subf.TOPI, S57subf.MASK ));
private static ArrayList S57sgcc = new ArrayList(Arrays.asList(S57subf.CCUI, S57subf.CCIX, S57subf.CCNC ));
private static ArrayList S57sg2d = new ArrayList(Arrays.asList(S57subf.YCOO, S57subf.XCOO ));
private static ArrayList S57sg3d = new ArrayList(Arrays.asList(S57subf.YCOO, S57subf.XCOO, S57subf.VE3D ));
private static ArrayList S57arcc = new ArrayList(Arrays.asList(S57subf.ATYP, S57subf.SURF, S57subf.ORDR, S57subf.RESO, S57subf.FPMF ));
private static ArrayList S57ar2d = new ArrayList(Arrays.asList(S57subf.STPT, S57subf.CTPT, S57subf.ENPT, S57subf.YCOO, S57subf.XCOO ));
private static ArrayList S57el2d = new ArrayList(Arrays.asList(S57subf.STPT, S57subf.CTPT, S57subf.ENPT, S57subf.CDPM, S57subf.CDPR, S57subf.YCOO, S57subf.XCOO ));
private static ArrayList S57ct2d = new ArrayList(Arrays.asList(S57subf.YCOO, S57subf.XCOO ));
private static final EnumMap> fields = new EnumMap>(S57field.class);
static {
fields.put(S57field.I8RI, S57i8ri);
fields.put(S57field.DSID, S57dsid); fields.put(S57field.DSSI, S57dssi); fields.put(S57field.DSPM, S57dspm); fields.put(S57field.DSPR, S57dspr);
fields.put(S57field.DSRC, S57dsrc); fields.put(S57field.DSHT, S57dsht); fields.put(S57field.DSAC, S57dsac); fields.put(S57field.CATD, S57catd);
fields.put(S57field.CATX, S57catx); fields.put(S57field.DDDF, S57dddf); fields.put(S57field.DDDR, S57dddr); fields.put(S57field.DDDI, S57dddi);
fields.put(S57field.DDOM, S57ddom); fields.put(S57field.DDRF, S57ddrf); fields.put(S57field.DDSI, S57ddsi); fields.put(S57field.DDSC, S57ddsc);
fields.put(S57field.FRID, S57frid); fields.put(S57field.FOID, S57foid); fields.put(S57field.LNAM, S57lnam); fields.put(S57field.ATTF, S57attf);
fields.put(S57field.NATF, S57natf); fields.put(S57field.FFPC, S57ffpc); fields.put(S57field.FFPT, S57ffpt); fields.put(S57field.FFPC, S57fspc);
fields.put(S57field.FSPT, S57fspt); fields.put(S57field.VRID, S57vrid); fields.put(S57field.ATTV, S57attv); fields.put(S57field.VRPC, S57vrpc);
fields.put(S57field.VRPT, S57vrpt); fields.put(S57field.SGCC, S57sgcc); fields.put(S57field.SG2D, S57sg2d); fields.put(S57field.SG3D, S57sg3d);
fields.put(S57field.ARCC, S57arcc); fields.put(S57field.AR2D, S57ar2d); fields.put(S57field.EL2D, S57el2d); fields.put(S57field.CT2D, S57ct2d);
}
private static byte[] leader = {'0', '0', '0', '0', '0', ' ', 'D', ' ', ' ', ' ', ' ', ' ', '0', '0', '0', '0', '0', ' ', ' ', ' ', '0', '0', '0', '4'};
private static byte[] buffer;
private static int offset;
private static int maxoff;
private static int index;
private static S57field field;
private static String aall = "US-ASCII";
private static String nall = "US-ASCII";
public static int rnum;
private static S57conv findSubf(S57subf subf) {
ArrayList subs = fields.get(field);
boolean wrap = false;
while (true) {
if (index == subs.size()) {
if (!wrap) {
index = 0;
wrap = true;
} else {
System.out.println("ERROR: Subfield not found " + subf.name() + " in " + field.name() + " in record " + rnum);
System.exit(-1);
}
}
S57subf sub = subs.get(index++);
S57conv conv = convs.get(sub);
if (sub == subf) {
return conv;
} else {
offset += (conv.bin != 0) ? ((conv.bin < 8) ? Math.abs(conv.bin) : conv.bin / 8) : conv.asc;
}
}
}
public static void setField(byte[] buf, int off, S57field fld, int len) {
buffer = buf;
offset = off;
maxoff = off + len - 1;
field = fld;
index = 0;
}
public static boolean more() {
return (offset < maxoff);
}
public static Object decSubf(byte[] buf, int off, S57field fld, S57subf subf) {
buffer = buf;
offset = off;
index = 0;
return decSubf(fld, subf);
}
public static Object decSubf(S57field fld, S57subf subf) {
field = fld;
index = 0;
return decSubf(subf);
}
public static Object decSubf(S57subf subf) {
S57conv conv = findSubf(subf);
if (conv.bin == 0) {
String str = "";
int i = 0;
if (conv.asc == 0) {
for (i=0; buffer[offset+i] != 0x1f; i++) {}
try {
String charset = "";
if (field == S57field.ATTF) charset = aall;
else if (field == S57field.NATF) charset = nall;
else charset = "US-ASCII";
str = new String(buffer, offset, i, charset);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
offset += i + 1;
} else {
str = new String(buffer, offset, conv.asc);
offset += conv.asc;
}
return str;
} else {
int f = Math.abs(conv.bin);
if (f < 8) {
long val = buffer[offset + --f];
if (conv.bin > 0)
val &= 0xff;
while (f > 0) {
val = (val << 8) + (buffer[offset + --f] & 0xff);
}
offset += Math.abs(conv.bin);
if ((subf == S57subf.AALL) || (subf == S57subf.NALL)) {
String charset = "";
switch ((int)val) {
case 0:
charset = "US-ASCII";
break;
case 1:
charset = "ISO-8859-1";
break;
case 2:
charset = "UTF-16LE";
break;
}
if (subf == S57subf.NALL) {
nall = charset;
} else {
aall = charset;
}
}
return val;
} else {
f /= 8;
long val = 0;
for (int i = 0; i < f; i++) {
val = (val << 8) + (buffer[offset++] & 0xff);
}
return val;
}
}
}
public static byte[] encSubf(S57subf subf, Object val) {
S57conv conv = convs.get(subf);
if ((conv.bin == 0) || asc) {
String sval = "";
if (val instanceof String) {
sval = (String) val;
} else if (val instanceof Integer) {
sval = ((Integer)val).toString();
} else if (val instanceof Long) {
sval = ((Long)val).toString();
} else if (val instanceof Double) {
sval = ((Double)val).toString();
}
index = sval.length();
try {
buffer = ((String) sval + " ").getBytes("ISO-8859-1");
} catch (Exception e) {
System.err.println(e.getMessage());
System.exit(-1);
}
if (conv.asc == 0) {
buffer[index] = 0x01f;
} else {
buffer = Arrays.copyOf(buffer, conv.asc);
while (index < buffer.length) {
buffer[index++] = ' ';
}
}
} else {
int f = Math.abs(conv.bin);
long lval;
if (val instanceof String) {
lval = Long.parseLong((String)val);
} else if (val instanceof Double) {
double dval = (double) val;
lval = (long) dval;
} else if (val instanceof Integer) {
lval = (int) val;
} else {
lval = (long) val;
}
buffer = new byte[f];
for (int i = 0; i < f; i++) {
buffer[i] = (byte) (lval & 0xff);
lval >>= 8;
}
}
return buffer;
}
static class Index {
byte[] field;
int length;
int offset;
Index (byte[] id, int l, int o) {
field = id;
length = l;
offset = o;
}
}
public static class Fparams {
public S57field field;
public Object[] params;
public Fparams(S57field f, Object[] p) {
field = f;
params = p;
}
};
static boolean asc = false;
public static byte[] encRecord(String i8rn, ArrayList fparams) {
asc = true;
return encRecord(Integer.parseInt(i8rn), fparams);
}
public static byte[] encRecord(int i8rn, ArrayList fparams) {
ArrayList index = new ArrayList();
int offset = 3;
int maxlen = 3;
byte[] buf = encSubf(S57subf.I8RN, i8rn);
buf = Arrays.copyOf(buf, 3);
buf[2] = 0x1e;
index.add(new Index("0001".getBytes(), 3, 0));
for (Fparams sfparams : fparams) {
for (int ip = 0; ip < sfparams.params.length; ) {
for (S57subf subf : fields.get(sfparams.field)) {
byte[] next = encSubf(subf, sfparams.params[ip++]);
buf = Arrays.copyOf(buf, (buf.length + next.length));
System.arraycopy(next, 0, buf, (buf.length - next.length), next.length);
}
}
buf = Arrays.copyOf(buf, (buf.length + 1));
buf[buf.length-1] = 0x1e;
int flen = buf.length - offset;
index.add(new Index(sfparams.field.toString().getBytes(), flen, offset));
maxlen = (flen > maxlen) ? flen : maxlen;
offset += flen;
}
int mlen = String.valueOf(maxlen).length();
String ffmt = "%0" + mlen + "d";
int olen = String.valueOf(offset).length();
String ofmt = "%0" + olen + "d";
int ilen = 4 + mlen + olen;
int isiz = (ilen * index.size()) + 1;
byte[] ibuf = new byte[isiz];
int i = 0;
for (Index item : index) {
for (byte ch : item.field) {
ibuf[i++] = ch;
}
byte[] digits = String.format(ffmt, item.length).getBytes();
for (byte ch : digits) {
ibuf[i++] = ch;
}
digits = String.format(ofmt, item.offset).getBytes();
for (byte ch : digits) {
ibuf[i++] = ch;
}
}
ibuf[i] = 0x1e;
byte[] fbuf = Arrays.copyOf(leader, (leader.length + ibuf.length + buf.length));
System.arraycopy(ibuf, 0, fbuf, leader.length, ibuf.length);
System.arraycopy(buf, 0, fbuf, (leader.length + ibuf.length), buf.length);
fbuf[20] = (byte)(mlen + 0x30);
fbuf[21] = (byte)(olen + 0x30);
System.arraycopy(String.format("%05d", fbuf.length).getBytes(), 0, fbuf, 0, 5);
System.arraycopy(String.format("%05d", (leader.length + ibuf.length)).getBytes(), 0, fbuf, 12, 5);
asc = false;
return fbuf;
}
}