Examples with Data liquibase.structure.core.Data used on opensource projects

Example 1 with Data

use of liquibase.structure.core.Data in project liquibase by liquibase.

the class MissingDataExternalFileChangeGenerator method fixMissing.

@Override
public Change[] fixMissing(DatabaseObject missingObject, DiffOutputControl outputControl, Database referenceDatabase, Database comparisionDatabase, ChangeGeneratorChain chain) {
    Statement stmt = null;
    ResultSet rs = null;
    try {
        Data data = (Data) missingObject;
        Table table = data.getTable();
        if (referenceDatabase.isLiquibaseObject(table)) {
            return null;
        }
        String sql = "SELECT * FROM " + referenceDatabase.escapeTableName(table.getSchema().getCatalogName(), table.getSchema().getName(), table.getName());
        stmt = ((JdbcConnection) referenceDatabase.getConnection()).createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY);
        stmt.setFetchSize(100);
        rs = stmt.executeQuery(sql);
        List<String> columnNames = new ArrayList<String>();
        for (int i = 0; i < rs.getMetaData().getColumnCount(); i++) {
            columnNames.add(rs.getMetaData().getColumnName(i + 1));
        }
        String fileName = table.getName().toLowerCase() + ".csv";
        if (dataDir != null) {
            fileName = dataDir + "/" + fileName;
            File parentDir = new File(dataDir);
            if (!parentDir.exists()) {
                parentDir.mkdirs();
            }
            if (!parentDir.isDirectory()) {
                throw new RuntimeException(parentDir + " is not a directory");
            }
        }
        CSVWriter outputFile = new CSVWriter(new BufferedWriter(new OutputStreamWriter(new FileOutputStream(fileName), LiquibaseConfiguration.getInstance().getConfiguration(GlobalConfiguration.class).getOutputEncoding())));
        String[] dataTypes = new String[columnNames.size()];
        String[] line = new String[columnNames.size()];
        for (int i = 0; i < columnNames.size(); i++) {
            line[i] = columnNames.get(i);
        }
        outputFile.writeNext(line);
        int rowNum = 0;
        while (rs.next()) {
            line = new String[columnNames.size()];
            for (int i = 0; i < columnNames.size(); i++) {
                Object value = JdbcUtils.getResultSetValue(rs, i + 1);
                if (dataTypes[i] == null && value != null) {
                    if (value instanceof Number) {
                        dataTypes[i] = "NUMERIC";
                    } else if (value instanceof Boolean) {
                        dataTypes[i] = "BOOLEAN";
                    } else if (value instanceof Date) {
                        dataTypes[i] = "DATE";
                    } else {
                        dataTypes[i] = "STRING";
                    }
                }
                if (value == null) {
                    line[i] = "NULL";
                } else {
                    if (value instanceof Date) {
                        line[i] = new ISODateFormat().format(((Date) value));
                    } else {
                        line[i] = value.toString();
                    }
                }
            }
            outputFile.writeNext(line);
            rowNum++;
            if (rowNum % 5000 == 0) {
                outputFile.flush();
            }
        }
        outputFile.flush();
        outputFile.close();
        LoadDataChange change = new LoadDataChange();
        change.setFile(fileName);
        change.setEncoding(LiquibaseConfiguration.getInstance().getConfiguration(GlobalConfiguration.class).getOutputEncoding());
        if (outputControl.getIncludeCatalog()) {
            change.setCatalogName(table.getSchema().getCatalogName());
        }
        if (outputControl.getIncludeSchema()) {
            change.setSchemaName(table.getSchema().getName());
        }
        change.setTableName(table.getName());
        for (int i = 0; i < columnNames.size(); i++) {
            String colName = columnNames.get(i);
            LoadDataColumnConfig columnConfig = new LoadDataColumnConfig();
            columnConfig.setHeader(colName);
            columnConfig.setName(colName);
            columnConfig.setType(dataTypes[i]);
            change.addColumn(columnConfig);
        }
        return new Change[] { change };
    } catch (Exception e) {
        throw new UnexpectedLiquibaseException(e);
    } finally {
        if (rs != null) {
            try {
                rs.close();
            } catch (SQLException ignore) {
            }
        }
        if (stmt != null) {
            try {
                stmt.close();
            } catch (SQLException ignore) {
            }
        }
    }
}

Example 2 with Data

use of liquibase.structure.core.Data in project liquibase by liquibase.

the class DataSnapshotGenerator method addTo.

@Override
protected void addTo(DatabaseObject foundObject, DatabaseSnapshot snapshot) throws DatabaseException, InvalidExampleException {
    if (!snapshot.getSnapshotControl().shouldInclude(Data.class)) {
        return;
    }
    if (foundObject instanceof Table) {
        Table table = (Table) foundObject;
        try {
            Data exampleData = new Data().setTable(table);
            table.setAttribute("data", exampleData);
        } catch (Exception e) {
            throw new DatabaseException(e);
        }
    }
}