Examples with Store org.h2.mvstore.db.MVTableEngine.Store used on opensource projects

Example 46 with Store

use of org.h2.mvstore.db.MVTableEngine.Store in project h2database by h2database.

the class ScriptBase method initStore.

private void initStore() {
    Database db = session.getDatabase();
    byte[] key = null;
    if (cipher != null && password != null) {
        char[] pass = password.optimize(session).getValue(session).getString().toCharArray();
        key = SHA256.getKeyPasswordHash("script", pass);
    }
    String file = getFileName();
    store = FileStore.open(db, file, "rw", cipher, key);
    store.setCheckedWriting(false);
    store.init();
}

Example 47 with Store

use of org.h2.mvstore.db.MVTableEngine.Store in project h2database by h2database.

the class ScriptBase method openOutput.

/**
 * Open the output stream.
 */
void openOutput() {
    String file = getFileName();
    if (file == null) {
        return;
    }
    if (isEncrypted()) {
        initStore();
        out = new FileStoreOutputStream(store, this, compressionAlgorithm);
        // always use a big buffer, otherwise end-of-block is written a lot
        out = new BufferedOutputStream(out, Constants.IO_BUFFER_SIZE_COMPRESS);
    } else {
        OutputStream o;
        try {
            o = FileUtils.newOutputStream(file, false);
        } catch (IOException e) {
            throw DbException.convertIOException(e, null);
        }
        out = new BufferedOutputStream(o, Constants.IO_BUFFER_SIZE);
        out = CompressTool.wrapOutputStream(out, compressionAlgorithm, SCRIPT_SQL);
    }
}

Example 48 with Store

use of org.h2.mvstore.db.MVTableEngine.Store in project h2database by h2database.

the class Database method open.

private synchronized void open(int traceLevelFile, int traceLevelSystemOut) {
    if (persistent) {
        String dataFileName = databaseName + Constants.SUFFIX_OLD_DATABASE_FILE;
        boolean existsData = FileUtils.exists(dataFileName);
        String pageFileName = databaseName + Constants.SUFFIX_PAGE_FILE;
        String mvFileName = databaseName + Constants.SUFFIX_MV_FILE;
        boolean existsPage = FileUtils.exists(pageFileName);
        boolean existsMv = FileUtils.exists(mvFileName);
        if (existsData && (!existsPage && !existsMv)) {
            throw DbException.get(ErrorCode.FILE_VERSION_ERROR_1, "Old database: " + dataFileName + " - please convert the database " + "to a SQL script and re-create it.");
        }
        if (existsPage && !FileUtils.canWrite(pageFileName)) {
            readOnly = true;
        }
        if (existsMv && !FileUtils.canWrite(mvFileName)) {
            readOnly = true;
        }
        if (existsPage && !existsMv) {
            dbSettings.mvStore = false;
        }
        if (readOnly) {
            if (traceLevelFile >= TraceSystem.DEBUG) {
                String traceFile = Utils.getProperty("java.io.tmpdir", ".") + "/" + "h2_" + System.currentTimeMillis();
                traceSystem = new TraceSystem(traceFile + Constants.SUFFIX_TRACE_FILE);
            } else {
                traceSystem = new TraceSystem(null);
            }
        } else {
            traceSystem = new TraceSystem(databaseName + Constants.SUFFIX_TRACE_FILE);
        }
        traceSystem.setLevelFile(traceLevelFile);
        traceSystem.setLevelSystemOut(traceLevelSystemOut);
        trace = traceSystem.getTrace(Trace.DATABASE);
        trace.info("opening {0} (build {1})", databaseName, Constants.BUILD_ID);
        if (autoServerMode) {
            if (readOnly || fileLockMethod == FileLockMethod.NO || fileLockMethod == FileLockMethod.SERIALIZED || fileLockMethod == FileLockMethod.FS || !persistent) {
                throw DbException.getUnsupportedException("autoServerMode && (readOnly || " + "fileLockMethod == NO || " + "fileLockMethod == SERIALIZED || " + "fileLockMethod == FS || " + "inMemory)");
            }
        }
        String lockFileName = databaseName + Constants.SUFFIX_LOCK_FILE;
        if (readOnly) {
            if (FileUtils.exists(lockFileName)) {
                throw DbException.get(ErrorCode.DATABASE_ALREADY_OPEN_1, "Lock file exists: " + lockFileName);
            }
        }
        if (!readOnly && fileLockMethod != FileLockMethod.NO) {
            if (fileLockMethod != FileLockMethod.FS) {
                lock = new FileLock(traceSystem, lockFileName, Constants.LOCK_SLEEP);
                lock.lock(fileLockMethod);
                if (autoServerMode) {
                    startServer(lock.getUniqueId());
                }
            }
        }
        if (SysProperties.MODIFY_ON_WRITE) {
            while (isReconnectNeeded()) {
            // wait until others stopped writing
            }
        } else {
            while (isReconnectNeeded() && !beforeWriting()) {
            // wait until others stopped writing and
            // until we can write (the file is not yet open -
            // no need to re-connect)
            }
        }
        deleteOldTempFiles();
        starting = true;
        if (SysProperties.MODIFY_ON_WRITE) {
            try {
                getPageStore();
            } catch (DbException e) {
                if (e.getErrorCode() != ErrorCode.DATABASE_IS_READ_ONLY) {
                    throw e;
                }
                pageStore = null;
                while (!beforeWriting()) {
                // wait until others stopped writing and
                // until we can write (the file is not yet open -
                // no need to re-connect)
                }
                getPageStore();
            }
        } else {
            getPageStore();
        }
        starting = false;
        if (mvStore == null) {
            writer = WriterThread.create(this, writeDelay);
        } else {
            setWriteDelay(writeDelay);
        }
    } else {
        if (autoServerMode) {
            throw DbException.getUnsupportedException("autoServerMode && inMemory");
        }
        traceSystem = new TraceSystem(null);
        trace = traceSystem.getTrace(Trace.DATABASE);
        if (dbSettings.mvStore) {
            getPageStore();
        }
    }
    systemUser = new User(this, 0, SYSTEM_USER_NAME, true);
    mainSchema = new Schema(this, 0, Constants.SCHEMA_MAIN, systemUser, true);
    infoSchema = new Schema(this, -1, "INFORMATION_SCHEMA", systemUser, true);
    schemas.put(mainSchema.getName(), mainSchema);
    schemas.put(infoSchema.getName(), infoSchema);
    publicRole = new Role(this, 0, Constants.PUBLIC_ROLE_NAME, true);
    roles.put(Constants.PUBLIC_ROLE_NAME, publicRole);
    systemUser.setAdmin(true);
    systemSession = new Session(this, systemUser, ++nextSessionId);
    lobSession = new Session(this, systemUser, ++nextSessionId);
    CreateTableData data = new CreateTableData();
    ArrayList<Column> cols = data.columns;
    Column columnId = new Column("ID", Value.INT);
    columnId.setNullable(false);
    cols.add(columnId);
    cols.add(new Column("HEAD", Value.INT));
    cols.add(new Column("TYPE", Value.INT));
    cols.add(new Column("SQL", Value.STRING));
    boolean create = true;
    if (pageStore != null) {
        create = pageStore.isNew();
    }
    data.tableName = "SYS";
    data.id = 0;
    data.temporary = false;
    data.persistData = persistent;
    data.persistIndexes = persistent;
    data.create = create;
    data.isHidden = true;
    data.session = systemSession;
    meta = mainSchema.createTable(data);
    IndexColumn[] pkCols = IndexColumn.wrap(new Column[] { columnId });
    metaIdIndex = meta.addIndex(systemSession, "SYS_ID", 0, pkCols, IndexType.createPrimaryKey(false, false), true, null);
    objectIds.set(0);
    starting = true;
    Cursor cursor = metaIdIndex.find(systemSession, null, null);
    ArrayList<MetaRecord> records = New.arrayList();
    while (cursor.next()) {
        MetaRecord rec = new MetaRecord(cursor.get());
        objectIds.set(rec.getId());
        records.add(rec);
    }
    Collections.sort(records);
    synchronized (systemSession) {
        for (MetaRecord rec : records) {
            rec.execute(this, systemSession, eventListener);
        }
    }
    if (mvStore != null) {
        mvStore.initTransactions();
        mvStore.removeTemporaryMaps(objectIds);
    }
    recompileInvalidViews(systemSession);
    starting = false;
    if (!readOnly) {
        // set CREATE_BUILD in a new database
        String name = SetTypes.getTypeName(SetTypes.CREATE_BUILD);
        if (settings.get(name) == null) {
            Setting setting = new Setting(this, allocateObjectId(), name);
            setting.setIntValue(Constants.BUILD_ID);
            lockMeta(systemSession);
            addDatabaseObject(systemSession, setting);
        }
        // mark all ids used in the page store
        if (pageStore != null) {
            BitSet f = pageStore.getObjectIds();
            for (int i = 0, len = f.length(); i < len; i++) {
                if (f.get(i) && !objectIds.get(i)) {
                    trace.info("unused object id: " + i);
                    objectIds.set(i);
                }
            }
        }
    }
    getLobStorage().init();
    systemSession.commit(true);
    trace.info("opened {0}", databaseName);
    if (checkpointAllowed > 0) {
        afterWriting();
    }
}

Example 49 with Store

use of org.h2.mvstore.db.MVTableEngine.Store in project h2database by h2database.

the class SessionRemote method openFile.

@Override
public FileStore openFile(String name, String mode, boolean mustExist) {
    if (mustExist && !FileUtils.exists(name)) {
        throw DbException.get(ErrorCode.FILE_NOT_FOUND_1, name);
    }
    FileStore store;
    if (cipher == null) {
        store = FileStore.open(this, name, mode);
    } else {
        store = FileStore.open(this, name, mode, cipher, fileEncryptionKey, 0);
    }
    store.setCheckedWriting(false);
    try {
        store.init();
    } catch (DbException e) {
        store.closeSilently();
        throw e;
    }
    return store;
}

Example 50 with Store

use of org.h2.mvstore.db.MVTableEngine.Store in project h2database by h2database.

the class Recover method dumpMVStoreFile.

private void dumpMVStoreFile(PrintWriter writer, String fileName) {
    writer.println("-- MVStore");
    writer.println("CREATE ALIAS IF NOT EXISTS READ_BLOB FOR \"" + this.getClass().getName() + ".readBlob\";");
    writer.println("CREATE ALIAS IF NOT EXISTS READ_CLOB FOR \"" + this.getClass().getName() + ".readClob\";");
    writer.println("CREATE ALIAS IF NOT EXISTS READ_BLOB_DB FOR \"" + this.getClass().getName() + ".readBlobDb\";");
    writer.println("CREATE ALIAS IF NOT EXISTS READ_CLOB_DB FOR \"" + this.getClass().getName() + ".readClobDb\";");
    writer.println("CREATE ALIAS IF NOT EXISTS READ_BLOB_MAP FOR \"" + this.getClass().getName() + ".readBlobMap\";");
    writer.println("CREATE ALIAS IF NOT EXISTS READ_CLOB_MAP FOR \"" + this.getClass().getName() + ".readClobMap\";");
    resetSchema();
    setDatabaseName(fileName.substring(0, fileName.length() - Constants.SUFFIX_MV_FILE.length()));
    MVStore mv = new MVStore.Builder().fileName(fileName).readOnly().open();
    dumpLobMaps(writer, mv);
    writer.println("-- Meta");
    dumpMeta(writer, mv);
    writer.println("-- Tables");
    TransactionStore store = new TransactionStore(mv);
    try {
        store.init();
    } catch (Throwable e) {
        writeError(writer, e);
    }
    try {
        for (String mapName : mv.getMapNames()) {
            if (!mapName.startsWith("table.")) {
                continue;
            }
            String tableId = mapName.substring("table.".length());
            ValueDataType keyType = new ValueDataType(null, this, null);
            ValueDataType valueType = new ValueDataType(null, this, null);
            TransactionMap<Value, Value> dataMap = store.begin().openMap(mapName, keyType, valueType);
            Iterator<Value> dataIt = dataMap.keyIterator(null);
            boolean init = false;
            while (dataIt.hasNext()) {
                Value rowId = dataIt.next();
                Value[] values = ((ValueArray) dataMap.get(rowId)).getList();
                recordLength = values.length;
                if (!init) {
                    setStorage(Integer.parseInt(tableId));
                    // init the column types
                    for (valueId = 0; valueId < recordLength; valueId++) {
                        String columnName = storageName + "." + valueId;
                        getSQL(columnName, values[valueId]);
                    }
                    createTemporaryTable(writer);
                    init = true;
                }
                StringBuilder buff = new StringBuilder();
                buff.append("INSERT INTO O_").append(tableId).append(" VALUES(");
                for (valueId = 0; valueId < recordLength; valueId++) {
                    if (valueId > 0) {
                        buff.append(", ");
                    }
                    String columnName = storageName + "." + valueId;
                    buff.append(getSQL(columnName, values[valueId]));
                }
                buff.append(");");
                writer.println(buff.toString());
                if (storageId == 0) {
                    try {
                        SimpleRow r = new SimpleRow(values);
                        MetaRecord meta = new MetaRecord(r);
                        schema.add(meta);
                        if (meta.getObjectType() == DbObject.TABLE_OR_VIEW) {
                            String sql = values[3].getString();
                            String name = extractTableOrViewName(sql);
                            tableMap.put(meta.getId(), name);
                        }
                    } catch (Throwable t) {
                        writeError(writer, t);
                    }
                }
            }
        }
        writeSchema(writer);
        writer.println("DROP ALIAS READ_BLOB_MAP;");
        writer.println("DROP ALIAS READ_CLOB_MAP;");
        writer.println("DROP TABLE IF EXISTS INFORMATION_SCHEMA.LOB_BLOCKS;");
    } catch (Throwable e) {
        writeError(writer, e);
    } finally {
        mv.close();
    }
}