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/** * 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.tajo.storage; import com.google.protobuf.Message; import org.apache.commons.codec.binary.Base64; import org.apache.tajo.catalog.Column; import org.apache.tajo.catalog.Schema; import org.apache.tajo.common.TajoDataTypes; import org.apache.tajo.datum.*; import org.apache.tajo.datum.protobuf.ProtobufJsonFormat; import org.apache.tajo.exception.ValueTooLongForTypeCharactersException; import org.apache.tajo.util.Bytes; import org.apache.tajo.util.NumberUtil; import java.io.IOException; import java.io.OutputStream; // Compatibility with Apache Hive @Deprecated public class TextSerializerDeserializer implements SerializerDeserializer { public static final byte[] trueBytes = "true".getBytes(); public static final byte[] falseBytes = "false".getBytes(); private ProtobufJsonFormat protobufJsonFormat = ProtobufJsonFormat.getInstance(); public TextSerializerDeserializer() { } public TextSerializerDeserializer(Schema schema) { init(schema); } private Schema schema; @Override public void init(Schema schema) { this.schema = schema; } @Override public int serialize(int index, Tuple tuple, OutputStream out, byte[] nullCharacters) throws IOException { Column col = schema.getColumn(index); TajoDataTypes.Type type = col.getDataType().getType(); if (tuple.isBlankOrNull(index)) { if (type == TajoDataTypes.Type.CHAR || type == TajoDataTypes.Type.TEXT) { out.write(nullCharacters); return nullCharacters.length; } return 0; } byte[] bytes; int length = 0; switch (type) { case BOOLEAN: out.write(tuple.getBool(index) ? trueBytes : falseBytes); length = trueBytes.length; break; case CHAR: int size = col.getDataType().getLength() - tuple.size(index); if (size < 0) { throw new ValueTooLongForTypeCharactersException(col.getDataType().getLength()); } byte[] pad = new byte[size]; bytes = tuple.getTextBytes(index); out.write(bytes); out.write(pad); length = bytes.length + pad.length; break; case TEXT: case BIT: case INT2: case INT4: case INT8: case FLOAT4: case FLOAT8: case DATE: case INTERVAL: bytes = tuple.getTextBytes(index); length = bytes.length; out.write(bytes); break; case TIME: bytes = tuple.getTextBytes(index); length = bytes.length; out.write(bytes); break; case BLOB: bytes = Base64.encodeBase64(tuple.getBytes(index), false); length = bytes.length; out.write(bytes, 0, length); break; case PROTOBUF: ProtobufDatum protobuf = (ProtobufDatum) tuple.getProtobufDatum(index); byte[] protoBytes = protobufJsonFormat.printToString(protobuf.get()).getBytes(); length = protoBytes.length; out.write(protoBytes, 0, protoBytes.length); break; case NULL_TYPE: default: break; } return length; } @Override public Datum deserialize(int index, byte[] bytes, int offset, int length, byte[] nullCharacters) throws IOException { Column col = schema.getColumn(index); TajoDataTypes.Type type = col.getDataType().getType(); Datum datum; switch (type) { case BOOLEAN: datum = isNull(bytes, offset, length, nullCharacters) ? NullDatum.get() : DatumFactory.createBool(bytes[offset] == 't' || bytes[offset] == 'T'); break; case BIT: datum = isNull(bytes, offset, length, nullCharacters) ? NullDatum.get() : DatumFactory.createBit(Byte.parseByte(new String(bytes, offset, length))); break; case CHAR: datum = isNullText(bytes, offset, length, nullCharacters) ? NullDatum.get() : DatumFactory.createChar(new String(bytes, offset, length).trim()); break; case INT1: case INT2: datum = isNull(bytes, offset, length, nullCharacters) ? NullDatum.get() : DatumFactory.createInt2((short) NumberUtil.parseInt(bytes, offset, length)); break; case INT4: datum = isNull(bytes, offset, length, nullCharacters) ? NullDatum.get() : DatumFactory.createInt4(NumberUtil.parseInt(bytes, offset, length)); break; case INT8: datum = isNull(bytes, offset, length, nullCharacters) ? NullDatum.get() : DatumFactory.createInt8(new String(bytes, offset, length)); break; case FLOAT4: datum = isNull(bytes, offset, length, nullCharacters) ? NullDatum.get() : DatumFactory.createFloat4(new String(bytes, offset, length)); break; case FLOAT8: datum = isNull(bytes, offset, length, nullCharacters) ? NullDatum.get() : DatumFactory.createFloat8(NumberUtil.parseDouble(bytes, offset, length)); break; case TEXT: { byte[] chars = new byte[length]; System.arraycopy(bytes, offset, chars, 0, length); datum = isNullText(bytes, offset, length, nullCharacters) ? NullDatum.get() : DatumFactory.createText(chars); break; } case DATE: datum = isNull(bytes, offset, length, nullCharacters) ? NullDatum.get() : DatumFactory.createDate(new String(bytes, offset, length)); break; case TIME: datum = isNull(bytes, offset, length, nullCharacters) ? NullDatum.get() : DatumFactory.createTime(new String(bytes, offset, length)); break; case INTERVAL: datum = isNull(bytes, offset, length, nullCharacters) ? NullDatum.get() : DatumFactory.createInterval(new String(bytes, offset, length)); break; case PROTOBUF: { if (isNull(bytes, offset, length, nullCharacters)) { datum = NullDatum.get(); } else { ProtobufDatumFactory factory = ProtobufDatumFactory.get(col.getDataType()); Message.Builder builder = factory.newBuilder(); try { byte[] protoBytes = new byte[length]; System.arraycopy(bytes, offset, protoBytes, 0, length); protobufJsonFormat.merge(protoBytes, builder); datum = factory.createDatum(builder.build()); } catch (IOException e) { e.printStackTrace(); throw new RuntimeException(e); } } break; } case BLOB: { if (isNull(bytes, offset, length, nullCharacters)) { datum = NullDatum.get(); } else { byte[] blob = new byte[length]; System.arraycopy(bytes, offset, blob, 0, length); datum = DatumFactory.createBlob(Base64.decodeBase64(blob)); } break; } default: datum = NullDatum.get(); break; } return datum; } private static boolean isNull(byte[] val, int offset, int length, byte[] nullBytes) { return length == 0 || ((length == nullBytes.length) && Bytes.equals(val, offset, length, nullBytes, 0, nullBytes.length)); } private static boolean isNullText(byte[] val, int offset, int length, byte[] nullBytes) { return length > 0 && length == nullBytes.length && Bytes.equals(val, offset, length, nullBytes, 0, nullBytes.length); } }