Mercurial Hosting > luan
annotate src/goodjava/lucene/logging/LogFile.java @ 1485:6a24c8b33d6b
minor
| author | Franklin Schmidt <fschmidt@gmail.com> |
|---|---|
| date | Fri, 01 May 2020 11:23:29 -0600 |
| parents | 1fa6e8ec2d53 |
| children | 2469aa31f31b |
| rev | line source |
|---|---|
| 1461 | 1 package goodjava.lucene.logging; |
| 2 | |
| 3 import java.io.File; | |
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4 import java.io.InputStream; |
| 1481 | 5 import java.io.OutputStream; |
| 6 import java.io.BufferedOutputStream; | |
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7 import java.io.DataOutputStream; |
| 1461 | 8 import java.io.RandomAccessFile; |
| 1480 | 9 import java.io.FileInputStream; |
| 1481 | 10 import java.io.FileOutputStream; |
| 1461 | 11 import java.io.IOException; |
| 12 import java.util.List; | |
| 13 import java.util.Map; | |
| 14 import org.apache.lucene.index.Term; | |
| 15 import org.apache.lucene.search.Query; | |
| 16 import org.apache.lucene.search.MatchAllDocsQuery; | |
| 17 import org.apache.lucene.search.TermQuery; | |
| 18 import org.apache.lucene.search.PrefixQuery; | |
| 19 import org.apache.lucene.search.WildcardQuery; | |
| 20 import org.apache.lucene.search.TermRangeQuery; | |
| 21 import org.apache.lucene.search.PhraseQuery; | |
| 22 import org.apache.lucene.search.NumericRangeQuery; | |
| 23 import org.apache.lucene.search.BooleanQuery; | |
| 24 import org.apache.lucene.search.BooleanClause; | |
| 25 import org.apache.lucene.util.BytesRef; | |
| 1465 | 26 import goodjava.logging.Logger; |
| 27 import goodjava.logging.LoggerFactory; | |
| 1480 | 28 import goodjava.io.LimitedInputStream; |
| 29 import goodjava.io.BufferedInputStream; | |
| 1461 | 30 |
| 31 | |
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32 public class LogFile extends DataOutputStream { |
| 1465 | 33 private static final Logger logger = LoggerFactory.getLogger(LogFile.class); |
| 34 public final File file; | |
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35 private final RandomAccessFile raf; |
| 1461 | 36 private long end; |
| 37 | |
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38 public static LogFile newLogFile(File file) throws IOException { |
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39 RandomAccessFile raf = new RandomAccessFile(file,"rwd"); |
| 1481 | 40 OutputStream out = new FileOutputStream(raf.getFD()); |
| 41 out = new BufferedOutputStream(out); | |
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42 return new LogFile(file,raf,out); |
| 1461 | 43 } |
| 44 | |
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45 protected LogFile(File file,RandomAccessFile raf,OutputStream out) throws IOException { |
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46 super(out); |
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47 this.file = file; |
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48 this.raf = raf; |
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49 |
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50 if( raf.length() == 0 ) { |
| 1461 | 51 end = 8; |
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52 raf.writeLong(end); |
| 1461 | 53 } else { |
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54 raf.seek(0L); |
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55 end = raf.readLong(); |
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56 raf.seek(end); |
| 1461 | 57 } |
| 58 } | |
| 59 | |
| 1465 | 60 public String toString() { |
| 61 return "LogFile<" + file.getName() + ">"; | |
| 62 } | |
| 63 | |
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64 public long end() { |
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65 return end; |
| 1461 | 66 } |
| 67 | |
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68 public LogInputStream input() throws IOException { |
| 1480 | 69 InputStream in = new FileInputStream(file); |
| 70 in = new LimitedInputStream(in,end); | |
| 71 in = new BufferedInputStream(in); | |
| 72 LogInputStream lis = newLogInputStream(in); | |
| 73 lis.readLong(); // skip end | |
| 74 return lis; | |
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75 } |
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76 |
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77 protected LogInputStream newLogInputStream(InputStream in) { |
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78 return new LogInputStream(in); |
| 1461 | 79 } |
| 80 | |
| 81 public void commit() throws IOException { | |
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82 flush(); |
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83 end = raf.getFilePointer(); |
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84 raf.seek(0L); |
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85 raf.writeLong(end); |
| 1481 | 86 raf.seek(end); |
| 1461 | 87 } |
| 88 | |
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89 public void rollback() throws IOException { |
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90 flush(); |
| 1481 | 91 raf.seek(end); |
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92 } |
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93 |
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94 static final int TYPE_NULL = 0; |
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95 static final int TYPE_STRING = 1; |
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96 static final int TYPE_INT = 2; |
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97 static final int TYPE_LONG = 3; |
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98 static final int TYPE_FLOAT = 4; |
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99 static final int TYPE_DOUBLE = 5; |
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100 static final int TYPE_BYTES = 6; |
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101 static final int TYPE_LIST = 7; |
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102 static final int TYPE_QUERY_MATCH_ALL_DOCS = 8; |
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103 static final int TYPE_QUERY_TERM = 9; |
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104 static final int TYPE_QUERY_PREFIX = 10; |
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105 static final int TYPE_QUERY_WILDCARD = 11; |
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106 static final int TYPE_QUERY_TERM_RANGE = 12; |
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107 static final int TYPE_QUERY_PHRASE = 13; |
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108 static final int TYPE_QUERY_NUMERIC_RANGE = 14; |
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109 static final int TYPE_QUERY_BOOLEAN = 15; |
| 1461 | 110 |
| 111 public void writeObject(Object obj) throws IOException { | |
| 112 if( obj==null ) { | |
| 113 writeByte(TYPE_NULL); | |
| 114 return; | |
| 115 } | |
| 116 if( obj instanceof String ) { | |
| 117 writeByte(TYPE_STRING); | |
| 118 writeUTF((String)obj); | |
| 119 return; | |
| 120 } | |
| 121 if( obj instanceof Integer ) { | |
| 122 writeByte(TYPE_INT); | |
| 123 writeInt((Integer)obj); | |
| 124 return; | |
| 125 } | |
| 126 if( obj instanceof Long ) { | |
| 127 writeByte(TYPE_LONG); | |
| 128 writeLong((Long)obj); | |
| 129 return; | |
| 130 } | |
| 131 if( obj instanceof Float ) { | |
| 132 writeByte(TYPE_FLOAT); | |
| 133 writeFloat((Float)obj); | |
| 134 return; | |
| 135 } | |
| 136 if( obj instanceof Double ) { | |
| 137 writeByte(TYPE_DOUBLE); | |
| 138 writeDouble((Double)obj); | |
| 139 return; | |
| 140 } | |
| 141 if( obj instanceof byte[] ) { | |
| 142 writeByte(TYPE_BYTES); | |
| 143 writeByteArray((byte[])obj); | |
| 144 return; | |
| 145 } | |
| 146 if( obj instanceof List ) { | |
| 147 writeByte(TYPE_LIST); | |
| 148 writeList((List)obj); | |
| 149 return; | |
| 150 } | |
| 151 if( obj instanceof MatchAllDocsQuery ) { | |
| 152 writeByte(TYPE_QUERY_MATCH_ALL_DOCS); | |
| 153 return; | |
| 154 } | |
| 155 if( obj instanceof TermQuery ) { | |
| 156 writeByte(TYPE_QUERY_TERM); | |
| 157 TermQuery query = (TermQuery)obj; | |
| 158 writeTerm( query.getTerm() ); | |
| 159 return; | |
| 160 } | |
| 161 if( obj instanceof PrefixQuery ) { | |
| 162 writeByte(TYPE_QUERY_PREFIX); | |
| 163 PrefixQuery query = (PrefixQuery)obj; | |
| 164 writeTerm( query.getPrefix() ); | |
| 165 return; | |
| 166 } | |
| 167 if( obj instanceof WildcardQuery ) { | |
| 168 writeByte(TYPE_QUERY_TERM_RANGE); | |
| 169 WildcardQuery query = (WildcardQuery)obj; | |
| 170 writeTerm( query.getTerm() ); | |
| 171 return; | |
| 172 } | |
| 173 if( obj instanceof TermRangeQuery ) { | |
| 174 writeByte(TYPE_QUERY_TERM_RANGE); | |
| 175 TermRangeQuery query = (TermRangeQuery)obj; | |
| 176 writeUTF( query.getField() ); | |
| 177 writeBytesRef( query.getLowerTerm() ); | |
| 178 writeBytesRef( query.getUpperTerm() ); | |
| 179 writeBoolean( query.includesLower() ); | |
| 180 writeBoolean( query.includesUpper() ); | |
| 181 return; | |
| 182 } | |
| 183 if( obj instanceof PhraseQuery ) { | |
| 184 writeByte(TYPE_QUERY_PHRASE); | |
| 185 PhraseQuery query = (PhraseQuery)obj; | |
| 186 Term[] terms = query.getTerms(); | |
| 187 int[] positions = query.getPositions(); | |
| 188 if( terms.length != positions.length ) | |
| 189 throw new RuntimeException(); | |
| 190 writeInt( terms.length ); | |
| 191 for( int i=0; i<terms.length; i++ ) { | |
| 192 writeTerm( terms[i] ); | |
| 193 writeInt( positions[i] ); | |
| 194 } | |
| 195 return; | |
| 196 } | |
| 197 if( obj instanceof NumericRangeQuery ) { | |
| 198 writeByte(TYPE_QUERY_NUMERIC_RANGE); | |
| 199 NumericRangeQuery query = (NumericRangeQuery)obj; | |
| 200 writeUTF( query.getField() ); | |
| 201 writeObject( query.getMin() ); | |
| 202 writeObject( query.getMax() ); | |
| 203 writeBoolean( query.includesMin() ); | |
| 204 writeBoolean( query.includesMax() ); | |
| 205 return; | |
| 206 } | |
| 207 if( obj instanceof BooleanQuery ) { | |
| 208 writeByte(TYPE_QUERY_BOOLEAN); | |
| 209 BooleanQuery query = (BooleanQuery)obj; | |
| 210 BooleanClause[] a = query.getClauses(); | |
| 211 writeInt(a.length); | |
| 212 for( BooleanClause bc : a ) { | |
| 213 writeQuery( bc.getQuery() ); | |
| 214 writeUTF( bc.getOccur().name() ); | |
| 215 } | |
| 216 return; | |
| 217 } | |
| 218 throw new IllegalArgumentException("invalid type for "+obj); | |
| 219 } | |
| 220 | |
| 221 public void writeByteArray(byte[] bytes) throws IOException { | |
| 222 writeInt(bytes.length); | |
| 223 write(bytes); | |
| 224 } | |
| 225 | |
| 226 public void writeList(List list) throws IOException { | |
| 227 writeInt(list.size()); | |
| 228 for( Object obj : list ) { | |
| 229 writeObject(obj); | |
| 230 } | |
| 231 } | |
| 232 | |
| 233 public void writeMap(Map map) throws IOException { | |
| 234 writeInt(map.size()); | |
| 235 for( Object obj : map.entrySet() ) { | |
| 236 Map.Entry entry = (Map.Entry)obj; | |
| 237 writeObject( entry.getKey() ); | |
| 238 writeObject( entry.getValue() ); | |
| 239 } | |
| 240 } | |
| 241 | |
| 242 public void writeQuery(Query query) throws IOException { | |
| 243 writeObject(query); | |
| 244 } | |
| 245 | |
| 246 public void writeBytesRef(BytesRef br) throws IOException { | |
| 247 writeInt(br.length); | |
| 248 write(br.bytes,0,br.length); | |
| 249 } | |
| 250 | |
| 251 public void writeTerm(Term term) throws IOException { | |
| 252 writeUTF(term.field()); | |
| 253 writeBytesRef( term.bytes() ); | |
| 254 } | |
| 255 | |
| 256 } |