Package org.h2.store

Examples of org.h2.store.DataReader$FastEOFException

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        testReadOnly();
        testAdapter();
    }

    private static void testAdapter() {
        TraceSystem ts = new TraceSystem(null);
        ts.setLevelFile(TraceSystem.ADAPTER);
        ts.getTrace("test").info("test");
        ts.close();
    }
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        ts.getTrace("test").info("test");
        ts.close();
    }

    private void testTraceDebug() {
        TraceSystem ts = new TraceSystem(null);
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        ts.setSysOut(new PrintStream(out));
        ts.setLevelSystemOut(TraceSystem.DEBUG);
        ts.getTrace("test").debug(new Exception("error"), "test");
        ts.close();
        String outString = new String(out.toByteArray());
        assertContains(outString, "error");
        assertContains(outString, "Exception");
        assertContains(outString, "test");
    }
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    private void testReadOnly() throws Exception {
        String readOnlyFile = getBaseDir() + "/readOnly.log";
        IOUtils.delete(readOnlyFile);
        IOUtils.openFileOutputStream(readOnlyFile, false).close();
        FileSystem.getInstance(getBaseDir()).setReadOnly(readOnlyFile);
        TraceSystem ts = new TraceSystem(readOnlyFile);
        ts.setLevelFile(TraceSystem.INFO);
        ts.getTrace("test").info("test");
        IOUtils.delete(readOnlyFile);
        ts.close();
    }
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    private void testFutureModificationDate() throws Exception {
        File f = new File(getFile());
        f.delete();
        f.createNewFile();
        f.setLastModified(System.currentTimeMillis() + 10000);
        FileLock lock = new FileLock(new TraceSystem(null), getFile(), Constants.LOCK_SLEEP);
        lock.lock(FileLock.LOCK_FILE);
        lock.unlock();
    }
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        lock.lock(FileLock.LOCK_FILE);
        lock.unlock();
    }

    private void testSimple() {
        FileLock lock1 = new FileLock(new TraceSystem(null), getFile(), Constants.LOCK_SLEEP);
        FileLock lock2 = new FileLock(new TraceSystem(null), getFile(), Constants.LOCK_SLEEP);
        lock1.lock(FileLock.LOCK_FILE);
        createClassProxy(FileLock.class);
        assertThrows(ErrorCode.DATABASE_ALREADY_OPEN_1, lock2).
                lock(FileLock.LOCK_FILE);
        lock1.unlock();
        lock2 = new FileLock(new TraceSystem(null), getFile(), Constants.LOCK_SLEEP);
        lock2.lock(FileLock.LOCK_FILE);
        lock2.unlock();
    }
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    }

    public void run() {
        FileLock lock = null;
        while (!stop) {
            lock = new FileLock(new TraceSystem(null), getFile(), 100);
            try {
                lock.lock(allowSockets ? FileLock.LOCK_SOCKET : FileLock.LOCK_FILE);
                base.trace(lock + " locked");
                locks++;
                if (locks > 1) {
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    }

    private void dumpPageLogStream(PrintWriter writer, int logKey,
            int logFirstTrunkPage, int logFirstDataPage, long pageCount) throws IOException {
        Data s = Data.create(this, pageSize);
        DataReader in = new DataReader(
                new PageInputStream(writer, this, store, logKey, logFirstTrunkPage, logFirstDataPage, pageSize)
        );
        writer.println("---- Transaction log ----");
        CompressLZF compress = new CompressLZF();
        while (true) {
            int x = in.readByte();
            if (x < 0) {
                break;
            }
            if (x == PageLog.NOOP) {
                // ignore
            } else if (x == PageLog.UNDO) {
                int pageId = in.readVarInt();
                int size = in.readVarInt();
                byte[] data = new byte[pageSize];
                if (size == 0) {
                    in.readFully(data, 0, pageSize);
                } else if (size == 1) {
                    // empty
                } else {
                    byte[] compressBuffer = new byte[size];
                    in.readFully(compressBuffer, 0, size);
                    try {
                        compress.expand(compressBuffer, 0, size, data, 0, pageSize);
                    } catch (ArrayIndexOutOfBoundsException e) {
                        throw DbException.convertToIOException(e);
                    }
                }
                String typeName = "";
                int type = data[0];
                boolean last = (type & Page.FLAG_LAST) != 0;
                type &= ~Page.FLAG_LAST;
                switch (type) {
                case Page.TYPE_EMPTY:
                    typeName = "empty";
                    break;
                case Page.TYPE_DATA_LEAF:
                    typeName = "data leaf " + (last ? "(last)" : "");
                    break;
                case Page.TYPE_DATA_NODE:
                    typeName = "data node " + (last ? "(last)" : "");
                    break;
                case Page.TYPE_DATA_OVERFLOW:
                    typeName = "data overflow " + (last ? "(last)" : "");
                    break;
                case Page.TYPE_BTREE_LEAF:
                    typeName = "b-tree leaf " + (last ? "(last)" : "");
                    break;
                case Page.TYPE_BTREE_NODE:
                    typeName = "b-tree node " + (last ? "(last)" : "");
                    break;
                case Page.TYPE_FREE_LIST:
                    typeName = "free list " + (last ? "(last)" : "");
                    break;
                case Page.TYPE_STREAM_TRUNK:
                    typeName = "log trunk";
                    break;
                case Page.TYPE_STREAM_DATA:
                    typeName = "log data";
                    break;
                default:
                    typeName = "ERROR: unknown type " + type;
                    break;
                }
                writer.println("-- undo page " + pageId + " " + typeName);
                if (trace) {
                    Data d = Data.create(null, data);
                    dumpPage(writer, d, pageId, pageCount);
                }
            } else if (x == PageLog.ADD) {
                int sessionId = in.readVarInt();
                setStorage(in.readVarInt());
                Row row = PageLog.readRow(in, s);
                writer.println("-- session " + sessionId +
                        " table " + storageId +
                        " + " + row.toString());
                if (transactionLog) {
                    if (storageId == 0 && row.getColumnCount() >= 4) {
                        int tableId = (int) row.getKey();
                        String sql = row.getValue(3).getString();
                        String name = extractTableOrViewName(sql);
                        if (row.getValue(2).getInt() == DbObject.TABLE_OR_VIEW) {
                            tableMap.put(tableId, name);
                        }
                        writer.println(sql + ";");
                    } else {
                        String tableName = tableMap.get(storageId);
                        if (tableName != null) {
                            StatementBuilder buff = new StatementBuilder();
                            buff.append("INSERT INTO ").append(tableName).append(" VALUES(");
                            for (int i = 0; i < row.getColumnCount(); i++) {
                                buff.appendExceptFirst(", ");
                                buff.append(row.getValue(i).getSQL());
                            }
                            buff.append(");");
                            writer.println(buff.toString());
                        }
                    }
                }
            } else if (x == PageLog.REMOVE) {
                int sessionId = in.readVarInt();
                setStorage(in.readVarInt());
                long key = in.readVarLong();
                writer.println("-- session " + sessionId +
                        " table " + storageId +
                        " - " + key);
                if (transactionLog) {
                    if (storageId == 0) {
                        int tableId = (int) key;
                        String tableName = tableMap.get(tableId);
                        if (tableName != null) {
                            writer.println("DROP TABLE IF EXISTS " + tableName + ";");
                        }
                    } else {
                        String tableName = tableMap.get(storageId);
                        if (tableName != null) {
                            String sql = "DELETE FROM " + tableName + " WHERE _ROWID_ = " + key + ";";
                            writer.println(sql);
                        }
                    }
                }
            } else if (x == PageLog.TRUNCATE) {
                int sessionId = in.readVarInt();
                setStorage(in.readVarInt());
                writer.println("-- session " + sessionId +
                        " table " + storageId +
                        " truncate");
                if (transactionLog) {
                    writer.println("TRUNCATE TABLE " + storageId);
                }
            } else if (x == PageLog.COMMIT) {
                int sessionId = in.readVarInt();
                writer.println("-- commit " + sessionId);
            } else if (x == PageLog.ROLLBACK) {
                int sessionId = in.readVarInt();
                writer.println("-- rollback " + sessionId);
            } else if (x == PageLog.PREPARE_COMMIT) {
                int sessionId = in.readVarInt();
                String transaction = in.readString();
                writer.println("-- prepare commit " + sessionId + " " + transaction);
            } else if (x == PageLog.NOOP) {
                // nothing to do
            } else if (x == PageLog.CHECKPOINT) {
                writer.println("-- checkpoint");
            } else if (x == PageLog.FREE_LOG) {
                int size = in.readVarInt();
                StringBuilder buff = new StringBuilder("-- free");
                for (int i = 0; i < size; i++) {
                    buff.append(' ').append(in.readVarInt());
                }
                writer.println(buff);
            } else {
                writer.println("-- ERROR: unknown operation " + x);
                break;
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            }
            return v;
        }
        case Value.CLOB: {
            long length = readLong();
            Value v = session.getDataHandler().getLobStorage().createClob(new DataReader(in), length);
            int magic = readInt();
            if (magic != LOB_MAGIC) {
                throw DbException.get(ErrorCode.CONNECTION_BROKEN_1, "magic=" + magic);
            }
            return v;
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                    int tableId = readInt();
                    long id = readLong();
                    long precision = readLong();
                    return ValueLobDb.create(Value.CLOB, session.getDataHandler().getLobStorage(), tableId, id, precision);
                }
                DataReader reader = new DataReader(in);
                int len = (int) length;
                char[] buff = new char[len];
                IOUtils.readFully(reader, buff, len);
                int magic = readInt();
                if (magic != LOB_MAGIC) {
                    throw DbException.get(ErrorCode.CONNECTION_BROKEN_1, "magic=" + magic);
                }
                byte[] small = new String(buff).getBytes("UTF-8");
                return ValueLobDb.createSmallLob(Value.CLOB, small, length);
            }
            Value v = session.getDataHandler().getLobStorage().createClob(new DataReader(in), length);
            int magic = readInt();
            if (magic != LOB_MAGIC) {
                throw DbException.get(ErrorCode.CONNECTION_BROKEN_1, "magic=" + magic);
            }
            return v;
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    }

    private void dumpPageLogStream(PrintWriter writer, int logKey,
            int logFirstTrunkPage, int logFirstDataPage, long pageCount) throws IOException {
        Data s = Data.create(this, pageSize);
        DataReader in = new DataReader(
                new PageInputStream(writer, this, store, logKey, logFirstTrunkPage, logFirstDataPage, pageSize)
        );
        writer.println("---- Transaction log ----");
        CompressLZF compress = new CompressLZF();
        while (true) {
            int x = in.readByte();
            if (x < 0) {
                break;
            }
            if (x == PageLog.NOOP) {
                // ignore
            } else if (x == PageLog.UNDO) {
                int pageId = in.readVarInt();
                int size = in.readVarInt();
                byte[] data = new byte[pageSize];
                if (size == 0) {
                    in.readFully(data, 0, pageSize);
                } else if (size == 1) {
                    // empty
                } else {
                    byte[] compressBuffer = new byte[size];
                    in.readFully(compressBuffer, 0, size);
                    try {
                        compress.expand(compressBuffer, 0, size, data, 0, pageSize);
                    } catch (ArrayIndexOutOfBoundsException e) {
                        throw DbException.convertToIOException(e);
                    }
                }
                String typeName = "";
                int type = data[0];
                boolean last = (type & Page.FLAG_LAST) != 0;
                type &= ~Page.FLAG_LAST;
                switch (type) {
                case Page.TYPE_EMPTY:
                    typeName = "empty";
                    break;
                case Page.TYPE_DATA_LEAF:
                    typeName = "data leaf " + (last ? "(last)" : "");
                    break;
                case Page.TYPE_DATA_NODE:
                    typeName = "data node " + (last ? "(last)" : "");
                    break;
                case Page.TYPE_DATA_OVERFLOW:
                    typeName = "data overflow " + (last ? "(last)" : "");
                    break;
                case Page.TYPE_BTREE_LEAF:
                    typeName = "b-tree leaf " + (last ? "(last)" : "");
                    break;
                case Page.TYPE_BTREE_NODE:
                    typeName = "b-tree node " + (last ? "(last)" : "");
                    break;
                case Page.TYPE_FREE_LIST:
                    typeName = "free list " + (last ? "(last)" : "");
                    break;
                case Page.TYPE_STREAM_TRUNK:
                    typeName = "log trunk";
                    break;
                case Page.TYPE_STREAM_DATA:
                    typeName = "log data";
                    break;
                default:
                    typeName = "ERROR: unknown type " + type;
                    break;
                }
                writer.println("-- undo page " + pageId + " " + typeName);
                if (trace) {
                    Data d = Data.create(null, data);
                    dumpPage(writer, d, pageId, pageCount);
                }
            } else if (x == PageLog.ADD) {
                int sessionId = in.readVarInt();
                setStorage(in.readVarInt());
                Row row = PageLog.readRow(in, s);
                writer.println("-- session " + sessionId +
                        " table " + storageId +
                        " + " + row.toString());
                if (transactionLog) {
                    if (storageId == 0 && row.getColumnCount() >= 4) {
                        int tableId = (int) row.getKey();
                        String sql = row.getValue(3).getString();
                        String name = extractTableOrViewName(sql);
                        if (row.getValue(2).getInt() == DbObject.TABLE_OR_VIEW) {
                            tableMap.put(tableId, name);
                        }
                        writer.println(sql + ";");
                    } else {
                        String tableName = tableMap.get(storageId);
                        if (tableName != null) {
                            StatementBuilder buff = new StatementBuilder();
                            buff.append("INSERT INTO ").append(tableName).append(" VALUES(");
                            for (int i = 0; i < row.getColumnCount(); i++) {
                                buff.appendExceptFirst(", ");
                                buff.append(row.getValue(i).getSQL());
                            }
                            buff.append(");");
                            writer.println(buff.toString());
                        }
                    }
                }
            } else if (x == PageLog.REMOVE) {
                int sessionId = in.readVarInt();
                setStorage(in.readVarInt());
                long key = in.readVarLong();
                writer.println("-- session " + sessionId +
                        " table " + storageId +
                        " - " + key);
                if (transactionLog) {
                    if (storageId == 0) {
                        int tableId = (int) key;
                        String tableName = tableMap.get(tableId);
                        if (tableName != null) {
                            writer.println("DROP TABLE IF EXISTS " + tableName + ";");
                        }
                    } else {
                        String tableName = tableMap.get(storageId);
                        if (tableName != null) {
                            String sql = "DELETE FROM " + tableName + " WHERE _ROWID_ = " + key + ";";
                            writer.println(sql);
                        }
                    }
                }
            } else if (x == PageLog.TRUNCATE) {
                int sessionId = in.readVarInt();
                setStorage(in.readVarInt());
                writer.println("-- session " + sessionId +
                        " table " + storageId +
                        " truncate");
                if (transactionLog) {
                    writer.println("TRUNCATE TABLE " + storageId);
                }
            } else if (x == PageLog.COMMIT) {
                int sessionId = in.readVarInt();
                writer.println("-- commit " + sessionId);
            } else if (x == PageLog.ROLLBACK) {
                int sessionId = in.readVarInt();
                writer.println("-- rollback " + sessionId);
            } else if (x == PageLog.PREPARE_COMMIT) {
                int sessionId = in.readVarInt();
                String transaction = in.readString();
                writer.println("-- prepare commit " + sessionId + " " + transaction);
            } else if (x == PageLog.NOOP) {
                // nothing to do
            } else if (x == PageLog.CHECKPOINT) {
                writer.println("-- checkpoint");
            } else if (x == PageLog.FREE_LOG) {
                int size = in.readVarInt();
                StringBuilder buff = new StringBuilder("-- free");
                for (int i = 0; i < size; i++) {
                    buff.append(' ').append(in.readVarInt());
                }
                writer.println(buff);
            } else {
                writer.println("-- ERROR: unknown operation " + x);
                break;
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