| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.drill.exec.store.phoenix; |
| |
| import java.sql.Array; |
| import java.sql.Date; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.sql.Time; |
| import java.sql.Timestamp; |
| import java.sql.Types; |
| import java.time.Instant; |
| import java.time.LocalDate; |
| import java.time.LocalTime; |
| import java.util.Map; |
| |
| import org.apache.drill.common.types.TypeProtos.MinorType; |
| import org.apache.drill.exec.physical.resultSet.ResultSetLoader; |
| import org.apache.drill.exec.physical.resultSet.RowSetLoader; |
| import org.apache.drill.exec.record.metadata.SchemaBuilder; |
| import org.apache.drill.exec.vector.accessor.ColumnWriter; |
| import org.apache.drill.exec.vector.accessor.ScalarWriter; |
| import org.apache.drill.exec.vector.accessor.writer.ScalarArrayWriter; |
| import com.google.common.collect.Maps; |
| |
| public class PhoenixReader implements AutoCloseable { |
| |
| private final RowSetLoader writer; |
| private final ColumnDefn[] columns; |
| private final ResultSet results; |
| |
| public PhoenixReader(ResultSetLoader loader, ColumnDefn[] columns, ResultSet results) { |
| this.writer = loader.writer(); |
| this.columns = columns; |
| this.results = results; |
| } |
| |
| public RowSetLoader getStorage() { |
| return writer; |
| } |
| |
| public long getRowCount() { |
| return writer.loader().totalRowCount(); |
| } |
| |
| public int getBatchCount() { |
| return writer.loader().batchCount(); |
| } |
| |
| /** |
| * Fetch and process one row. |
| * @return return true if one row is processed, return false if there is no next row. |
| * @throws SQLException |
| */ |
| public boolean processRow() throws SQLException { |
| if (results.next()) { |
| writer.start(); |
| for (ColumnDefn columnDefn : columns) { |
| columnDefn.load(results); |
| } |
| writer.save(); |
| return true; |
| } |
| return false; |
| } |
| |
| protected static final Map<Integer, MinorType> COLUMN_TYPE_MAP = Maps.newHashMap(); |
| |
| static { |
| // text |
| COLUMN_TYPE_MAP.put(Types.VARCHAR, MinorType.VARCHAR); |
| COLUMN_TYPE_MAP.put(Types.CHAR, MinorType.VARCHAR); |
| // numbers |
| COLUMN_TYPE_MAP.put(Types.BIGINT, MinorType.BIGINT); |
| COLUMN_TYPE_MAP.put(Types.INTEGER, MinorType.INT); |
| COLUMN_TYPE_MAP.put(Types.SMALLINT, MinorType.INT); |
| COLUMN_TYPE_MAP.put(Types.TINYINT, MinorType.INT); |
| COLUMN_TYPE_MAP.put(Types.DOUBLE, MinorType.FLOAT8); |
| COLUMN_TYPE_MAP.put(Types.FLOAT, MinorType.FLOAT4); |
| COLUMN_TYPE_MAP.put(Types.DECIMAL, MinorType.VARDECIMAL); |
| // time |
| COLUMN_TYPE_MAP.put(Types.DATE, MinorType.DATE); |
| COLUMN_TYPE_MAP.put(Types.TIME, MinorType.TIME); |
| COLUMN_TYPE_MAP.put(Types.TIMESTAMP, MinorType.TIMESTAMP); |
| // binary |
| COLUMN_TYPE_MAP.put(Types.BINARY, MinorType.VARBINARY); // Raw fixed length byte array. Mapped to byte[]. |
| COLUMN_TYPE_MAP.put(Types.VARBINARY, MinorType.VARBINARY); // Raw variable length byte array. |
| // boolean |
| COLUMN_TYPE_MAP.put(Types.BOOLEAN, MinorType.BIT); |
| } |
| |
| @Override |
| public void close() throws Exception { |
| results.close(); |
| } |
| |
| protected abstract static class ColumnDefn { |
| |
| final String name; |
| final int index; |
| final int sqlType; |
| ColumnWriter writer; |
| |
| public String getName() { |
| return name; |
| } |
| |
| public int getIndex() { |
| return index; |
| } |
| |
| public int getSqlType() { |
| return sqlType; |
| } |
| |
| public ColumnDefn(String name, int index, int sqlType) { |
| this.name = name; |
| this.index = index; |
| this.sqlType = sqlType; |
| } |
| |
| public void define(SchemaBuilder builder) { |
| builder.addNullable(getName(), COLUMN_TYPE_MAP.get(getSqlType())); |
| } |
| |
| public void bind(RowSetLoader loader) { |
| writer = loader.scalar(getName()); |
| } |
| |
| public abstract void load(ResultSet row) throws SQLException; |
| } |
| |
| protected static class GenericDefn extends ColumnDefn { |
| |
| public GenericDefn(String name, int index, int sqlType) { |
| super(name, index, sqlType); |
| } |
| |
| @Override |
| public void load(ResultSet row) throws SQLException { |
| Object value = row.getObject(index); |
| if (value != null) { |
| writer.setObject(value); |
| } |
| } |
| } |
| |
| protected static class GenericDateDefn extends GenericDefn { |
| |
| public GenericDateDefn(String name, int index, int sqlType) { |
| super(name, index, sqlType); |
| } |
| |
| @Override |
| public void load(ResultSet row) throws SQLException { |
| Object value = row.getObject(index); |
| if (value != null) { |
| LocalDate date = ((Date) value).toLocalDate(); // java.sql.Date |
| ((ScalarWriter) writer).setDate(date); |
| } |
| } |
| } |
| |
| protected static class GenericTimeDefn extends GenericDefn { |
| |
| public GenericTimeDefn(String name, int index, int sqlType) { |
| super(name, index, sqlType); |
| } |
| |
| @Override |
| public void load(ResultSet row) throws SQLException { |
| Object value = row.getObject(index); |
| if (value != null) { |
| LocalTime time = ((Time) value).toLocalTime(); // java.sql.Time |
| ((ScalarWriter) writer).setTime(time); |
| } |
| } |
| } |
| |
| protected static class GenericTimestampDefn extends GenericDefn { |
| |
| public GenericTimestampDefn(String name, int index, int sqlType) { |
| super(name, index, sqlType); |
| } |
| |
| @Override |
| public void load(ResultSet row) throws SQLException { |
| Object value = row.getObject(index); |
| if (value != null) { |
| Instant ts = ((Timestamp) value).toInstant(); // java.sql.Timestamp |
| ((ScalarWriter) writer).setTimestamp(ts); |
| } |
| } |
| } |
| |
| protected static abstract class ArrayDefn extends ColumnDefn { |
| |
| static final String VARCHAR = "VARCHAR ARRAY"; |
| static final String CHAR = "CHAR ARRAY"; |
| static final String BIGINT = "BIGINT ARRAY"; |
| static final String INTEGER = "INTEGER ARRAY"; |
| static final String DOUBLE = "DOUBLE ARRAY"; |
| static final String FLOAT = "FLOAT ARRAY"; |
| static final String SMALLINT = "SMALLINT ARRAY"; |
| static final String TINYINT = "TINYINT ARRAY"; |
| static final String BOOLEAN = "BOOLEAN ARRAY"; |
| |
| final String baseType; |
| |
| public ArrayDefn(String name, int index, int sqlType, String baseType) { |
| super(name, index, sqlType); |
| this.baseType = baseType; |
| } |
| |
| @Override |
| public void bind(RowSetLoader loader) { |
| writer = loader.array(getName()); |
| } |
| |
| @Override |
| public void load(ResultSet row) throws SQLException { |
| Array array = row.getArray(index); |
| if (array != null && array.getArray() != null) { |
| // Phoenix can create an array of primitives, so need to convert them |
| Object[] values = new Object[java.lang.reflect.Array.getLength(array.getArray())]; |
| for (int i = 0; i < values.length; i++) { |
| values[i] = java.lang.reflect.Array.get(array.getArray(), i); |
| } |
| ((ScalarArrayWriter) writer).setObjectArray(values); |
| } |
| } |
| } |
| |
| protected static class ArrayVarcharDefn extends ArrayDefn { |
| |
| public ArrayVarcharDefn(String name, int index, int sqlType, String baseType) { |
| super(name, index, sqlType, baseType); |
| } |
| |
| @Override |
| public void define(SchemaBuilder builder) { |
| builder.addArray(getName(), MinorType.VARCHAR); |
| } |
| } |
| |
| protected static class ArrayBigintDefn extends ArrayDefn { |
| |
| public ArrayBigintDefn(String name, int index, int sqlType, String baseType) { |
| super(name, index, sqlType, baseType); |
| } |
| |
| @Override |
| public void define(SchemaBuilder builder) { |
| builder.addArray(getName(), MinorType.BIGINT); |
| } |
| } |
| |
| protected static class ArrayIntegerDefn extends ArrayDefn { |
| |
| public ArrayIntegerDefn(String name, int index, int sqlType, String baseType) { |
| super(name, index, sqlType, baseType); |
| } |
| |
| @Override |
| public void define(SchemaBuilder builder) { |
| builder.addArray(getName(), MinorType.INT); |
| } |
| } |
| |
| protected static class ArraySmallintDefn extends ArrayDefn { |
| |
| public ArraySmallintDefn(String name, int index, int sqlType, String baseType) { |
| super(name, index, sqlType, baseType); |
| } |
| |
| @Override |
| public void define(SchemaBuilder builder) { |
| builder.addArray(getName(), MinorType.SMALLINT); |
| } |
| } |
| |
| protected static class ArrayTinyintDefn extends ArrayDefn { |
| |
| public ArrayTinyintDefn(String name, int index, int sqlType, String baseType) { |
| super(name, index, sqlType, baseType); |
| } |
| |
| @Override |
| public void define(SchemaBuilder builder) { |
| builder.addArray(getName(), MinorType.TINYINT); |
| } |
| } |
| |
| protected static class ArrayDoubleDefn extends ArrayDefn { |
| |
| public ArrayDoubleDefn(String name, int index, int sqlType, String baseType) { |
| super(name, index, sqlType, baseType); |
| } |
| |
| @Override |
| public void define(SchemaBuilder builder) { |
| builder.addArray(getName(), MinorType.FLOAT8); |
| } |
| } |
| |
| protected static class ArrayBooleanDefn extends ArrayDefn { |
| |
| public ArrayBooleanDefn(String name, int index, int sqlType, String baseType) { |
| super(name, index, sqlType, baseType); |
| } |
| |
| @Override |
| public void define(SchemaBuilder builder) { |
| builder.addArray(getName(), MinorType.BIT); |
| } |
| } |
| } |