Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package libepg.epg.section; import epgtools.reverselookupmapfactory.ReverseLookUpMapFactory; import java.text.MessageFormat; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.HashSet; import java.util.List; import java.util.Map; import java.util.Set; import java.util.function.Function; import libepg.epg.section.body.eventinformationtable.EventInformationTableBody; import libepg.epg.section.body.servicedescriptiontable.ServiceDescriptionTableBody; import org.apache.commons.lang3.Range; /** * ?(ID)?????????? ID?1?? * 2???ID????? */ public enum TABLE_ID { /** * SDTService Description Table<br> * ??????????????????????<br> * ?1021?<br> * ??????SDT????SDT????0x42???<br> * ???????SDT??0x46??<br> */ /** * SDTService Description Table<br> * ??????????????????????<br> * ?1021?<br> * ??????SDT????SDT????0x42???<br> * ???????SDT??0x46??<br> */ SDT("", MAX_SECTION_LENGTH.BYTE_1021, ServiceDescriptionTableBody.class, 0x42, 0x46), /** * EIT(8) */ EIT_THIS_STREAM_8_DAYS("EIT(8)", MAX_SECTION_LENGTH.BYTE_4093, EventInformationTableBody.class, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f), /** * EIT???? ??????????? */ EIT_THIS_STREAM_NOW_AND_NEXT("EIT????", MAX_SECTION_LENGTH.BYTE_4093, EventInformationTableBody.class, 0x4E), /** * EIT(8) */ EIT_OTHER_STREAM_8_DAYS("EIT(8)", MAX_SECTION_LENGTH.BYTE_4093, EventInformationTableBody.class, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f), /** * EIT??????????????? */ EIT_OTHER_STREAM_NOW_AND_NEXT( "EIT???????????????", MAX_SECTION_LENGTH.BYTE_4093, EventInformationTableBody.class, 0x4F), /** * ???(????) */ OTHER_TABLE_IDS("???(????)", MAX_SECTION_LENGTH.BYTE_4093, SectionBody.class, 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x43, 0x44, 0x45, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff); /** * (?CRC3?????1021?????4093??????????????) * ???1024?????4096???????????1021?????4093??????? */ public static enum MAX_SECTION_LENGTH { BYTE_1021(1021), BYTE_4093(4093); private final int maxSectionLength; private MAX_SECTION_LENGTH(int length) { this.maxSectionLength = length; } /** * ?CRC3????1021?????4093??????? * * @return ? */ public int getMaxSectionBodyLength() { return maxSectionLength; } /** * ???1024?????4096??????? * * @return ? */ public int getMaxSectionLength() { return maxSectionLength + 3; } @Override public synchronized String toString() { MessageFormat msg = new MessageFormat("{0}(maxSectionLength={1})"); Object[] parameters = { super.toString(), maxSectionLength }; return msg.format(parameters); } } //?? private static final Map<Integer, TABLE_ID> rev; private static final Function<TABLE_ID, Set<Integer>> func1 = (TABLE_ID t) -> t.getTableIDs(); //??? private static final ReverseLookUpMapFactory<Integer, Set<Integer>, TABLE_ID> revmapf = new ReverseLookUpMapFactory<>( func1); static { for (TABLE_ID tid : TABLE_ID.values()) { revmapf.put(tid); } rev = revmapf.getDict(); } ; /** * ID?????? * * @param tableID ID * @return ID????null */ public static synchronized TABLE_ID reverseLookUp(int tableID) { return rev.get(tableID); } private final String tableName; private final MAX_SECTION_LENGTH maxSectionLength; private final Class<? extends SectionBody> dataType; private final Set<Integer> tableIDs; private TABLE_ID(String tableName, MAX_SECTION_LENGTH maxSectionLength, Class<? extends SectionBody> dataType, Integer tableID, Integer... tableIDs) { this.tableName = tableName; if ((this.tableName == null) || ("".equals(this.tableName))) { throw new IllegalArgumentException("???????????"); } List<Integer> t = new ArrayList<>(); if (tableID != null) { t.add(tableID); } else { throw new NullPointerException("ID??????"); } if (tableIDs != null) { t.addAll(Arrays.asList(tableIDs)); } Range<Integer> r = Range.between(0x0, 0xFF); for (Integer i : t) { if (!r.contains(i)) { MessageFormat msg = new MessageFormat( "ID????ID={0}"); Object[] parameters = { Integer.toHexString(i) }; throw new IllegalArgumentException(msg.format(parameters)); } } Set<Integer> temp = Collections.synchronizedSet(new HashSet<Integer>()); temp.addAll(t); this.tableIDs = Collections.unmodifiableSet(temp); this.dataType = dataType; this.maxSectionLength = maxSectionLength; } public synchronized String getTableName() { return tableName; } /** * ??????ID??????? * * @param tableID ID * @return ?????true */ public synchronized boolean contains(int tableID) { return this.tableIDs.contains(tableID); } public synchronized MAX_SECTION_LENGTH getMaxSectionLength() { return maxSectionLength; } public synchronized Class<? extends SectionBody> getDataType() { return dataType; } private Set<Integer> getTableIDs() { return tableIDs; } @Override public String toString() { StringBuilder s = new StringBuilder(); for (int i : this.tableIDs) { s.append("["); s.append(Integer.toHexString(i)); s.append("]"); } String set = s.toString(); MessageFormat msg = new MessageFormat( "{0}(tableName={1}, tableIDs={2}, maxSectionLength={3},dataType={4})"); Object[] parameters = { super.toString(), this.getTableName(), set, maxSectionLength, dataType }; return msg.format(parameters); } }