Ejemplo n.º 1
0
 private void loadFromFile() throws IOException, ReflectiveOperationException {
   RandomAccessFile file = null;
   try {
     int fieldId = 0;
     file = new RandomAccessFile(filePath, "r");
     while (file.getFilePointer() < file.length()) {
       String fieldName = file.readUTF();
       int fieldType = file.readUnsignedByte();
       BitSet bitSet = BitSet.valueOf(new byte[] {file.readByte()});
       boolean indexed = bitSet.get(BIT_INDEX_INDEXED);
       boolean stored = bitSet.get(BIT_INDEX_STORED);
       Field f = new Field();
       f.setFieldId(fieldId);
       f.setFieldName(fieldName);
       f.setIsIndexed(indexed);
       f.setIsStored(stored);
       f.setFieldType(fieldTypeStore.findTypeById(fieldType));
       fieldIdMapping.add(f);
       fieldNameMapping.put(f.getFieldName(), f);
       fieldId++;
     }
   } finally {
     if (file != null) {
       file.close();
     }
   }
 }
Ejemplo n.º 2
0
  public int getOrCreateField(Field f) throws IOException, ReflectiveOperationException {
    if (fieldIdMapping.size() > f.getFieldId()) {
      return fieldIdMapping.get(f.getFieldId()).getFieldId();
    }
    RandomAccessFile file = null;
    try {
      file = new RandomAccessFile(filePath, "rw");
      file.seek(file.length());
      f.setFieldId(fieldIdMapping.size());
      file.writeUTF(f.getFieldName());
      int typeId = fieldTypeStore.getOrCreateTypeId(f.getFieldType());
      file.writeByte(typeId);
      BitSet bitSet = new BitSet(8);
      bitSet.set(BIT_INDEX_INDEXED, f.isIndexed());
      bitSet.set(BIT_INDEX_STORED, f.isStored());
      file.write(bitSet.toByteArray());
      // Add to indexes
      fieldIdMapping.add(f);
      fieldNameMapping.put(f.getFieldName(), f);

      return f.getFieldId();
    } finally {
      if (file != null) {
        file.close();
      }
    }
  }
Ejemplo n.º 3
0
 public void deleteAll() throws IOException {
   // Clear file
   RandomAccessFile file = new RandomAccessFile(filePath, "rw");
   file.setLength(0);
   // Clear cache
   fieldNameMapping.clear();
   fieldIdMapping.clear();
   fieldTypeStore.deleteAll();
 }