private void ensureCapacity() throws IOException { if (offset >= BLOCK_SIZE) { // get the next block if (blockCount >= usedBlocks.length) { int[] blocks = new int[blockCount * 2]; System.arraycopy(usedBlocks, 0, blocks, 0, usedBlocks.length); Arrays.fill(blocks, usedBlocks.length, blocks.length, -1); usedBlocks = blocks; } int nextBlockId = usedBlocks[blockCount]; if (nextBlockId == -1) { nextBlockId = file.allocBlock(); usedBlocks[blockCount] = nextBlockId; } // flush the current block into the disk if (blockId != -1) { BTreeUtils.integerToBytes(nextBlockId, bytes); file.writeBlock(blockId, bytes); } blockId = nextBlockId; blockCount++; Arrays.fill(bytes, (byte) 0); offset = 4; } }
public void close() throws IOException { if (blockId != -1) { BTreeUtils.integerToBytes(-1, bytes); file.writeBlock(blockId, bytes); } for (int i = blockCount; i < usedBlocks.length; i++) { int freeBlock = usedBlocks[i]; if (freeBlock != -1) { file.freeBlock(freeBlock); } } }
public static void printType(NodeType type) { if (type instanceof NodeSynonym) { System.out.println("NodeSynonym: " + ((NodeSynonym) type).getID()); } // System.out.println("NodeSynonym: " + ((NodeSynonym)type).getType()); else if (type instanceof NodePLType) { System.out.println("PLType: " + ((NodePLType) type).getType()); } else if (type instanceof NodePointer) { System.out.println("Puntero a"); System.out.print(" "); printType(((NodePointer) type).getType()); } else if (type instanceof NodeArray) { System.out.print("Arreglo de tamaño " + ((NodeArray) type).getSize() + " de tipo: "); printType(((NodeArray) type).getType()); } else if (type instanceof NodeStructure) { NodeStructure structure = (NodeStructure) type; // List<NodeElement> elements = record.getElements(); CHANGE List<NodeElement> elements = structure.getElements(); Iterator<NodeElement> iter = elements.iterator(); // System.out.println("Estructura: " + "Nombre: " + record.getName()); CHANGE System.out.println("Estructura: " + "Nombre: " + structure.getName()); int i = 1; NodeElement element; while (iter.hasNext()) { element = iter.next(); System.out.println("Campo " + i + ": "); i++; // System.out.println("Nombre: " + (element.getName())); CHANGE System.out.println("Nombre: " + (element.getID())); System.out.print("Tipo: "); printType(element.getType()); } } else if (type instanceof NodeList) { NodeList list = (NodeList) type; // List<NodeField> fields = list.getFields(); CHANGE List<NodeElement> fields = list.getFields(); // Iterator<NodeField> iter = fields.iterator(); CHANGE Iterator<NodeElement> iter = fields.iterator(); System.out.println("Lista"); System.out.println("Nombre: " + list.getName()); System.out.println("LinkType: " + list.getLinkType()); System.out.println("LinkNexName: " + list.getLinkNextName()); if (list.getLinkPrevName() != null) { System.out.println("LinkPrevName: " + list.getLinkPrevName()); } int i = 1; NodeElement field; while (iter.hasNext()) { field = iter.next(); System.out.println("Campo " + i + ":"); i++; // System.out.println("Nombre: " + (field.getName())); CHANGE System.out.println("Nombre: " + (field.getID())); System.out.print("Tipo: "); printType(field.getType()); } // if (list.getMemalloc() != null ) CHANGE if (list.getMemAlloc() != null) { System.out.println("MemallocFunction: "); // System.out.println(list.getMemalloc()); CHANGE System.out.println(list.getMemAlloc()); } } else if (type instanceof NodeFile) { NodeFile file = (NodeFile) type; System.out.println("Archivo"); System.out.println("Nombre: " + file.getName()); System.out.println("Ruta: " + file.getPath()); System.out.println("Delimitador: " + file.getDelimiter()); if (file.getEof() != null) { System.out.println("EOF: " + file.getEof()); } if (file.getEol() != null) { System.out.println("EOL: " + file.getEol()); } if (file.getStructure() != null) { System.out.println("Estructura: " + file.getStructure()); } } else if (type instanceof NodeDB) { NodeDB db = (NodeDB) type; List<NodeDBColumn> regs = db.getColumns(); Iterator<NodeDBColumn> iter = regs.iterator(); System.out.println("Base de Datos"); System.out.println("DBMS: " + db.getDBMSID()); // System.out.println("connectionID " + db.getConnID()); CHANGE System.out.println("connectionID " + db.getConnectionID()); // System.out.println("Table name: " + db.getTable()); CHANGE System.out.println("Table name: " + db.getTableName()); System.out.println("Registros:"); int i = 1; while (iter.hasNext()) { NodeDBColumn rec = iter.next(); System.out.println( "Registro " + i + ": " + rec.getColType() + " tipo: " + rec.getColType()); i++; } } }
public NodeOutputStream(NodeFile file) throws IOException { this(file, new int[] {file.allocBlock()}); }