wuchong commented on a change in pull request #9045: [FLINK-12955][hbase] Support LookupableTableSource for HBase URL: https://github.com/apache/flink/pull/9045#discussion_r301632384
########## File path: flink-connectors/flink-hbase/src/main/java/org/apache/flink/addons/hbase/util/HBaseTypeUtils.java ########## @@ -0,0 +1,174 @@ +/* + * 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.flink.addons.hbase.util; + +import org.apache.flink.annotation.Internal; +import org.apache.flink.api.common.typeinfo.TypeInformation; + +import org.apache.commons.net.ntp.TimeStamp; +import org.apache.hadoop.hbase.util.Bytes; + +import java.math.BigDecimal; +import java.math.BigInteger; +import java.nio.charset.Charset; +import java.sql.Date; +import java.sql.Time; +import java.sql.Timestamp; + +/** + * A utility class to process data exchange with HBase type system. + */ +@Internal +public class HBaseTypeUtils { + + private static final byte[] EMPTY_BYTES = new byte[]{}; + + /** + * Deserialize byte array to Java Object with the given type. + */ + public static Object deserializeToObject(byte[] value, int typeIdx, Charset stringCharset) { + switch (typeIdx) { + case 0: // byte[] + return value; + case 1: // String + return new String(value, stringCharset); + case 2: // byte + return value[0]; + case 3: + return Bytes.toShort(value); + case 4: + return Bytes.toInt(value); + case 5: + return Bytes.toLong(value); + case 6: + return Bytes.toFloat(value); + case 7: + return Bytes.toDouble(value); + case 8: + return Bytes.toBoolean(value); + case 9: // sql.Timestamp encoded as long + return new Timestamp(Bytes.toLong(value)); + case 10: // sql.Date encoded as long + return new Date(Bytes.toLong(value)); + case 11: // sql.Time encoded as long + return new Time(Bytes.toLong(value)); + case 12: + return Bytes.toBigDecimal(value); + case 13: + return new BigInteger(value); + + default: + throw new IllegalArgumentException("unsupported type index:" + typeIdx); + } + } + + /** + * Serialize the Java Object to byte array with the given type. + */ + public static byte[] serializeFromObject(Object value, int typeIdx, Charset stringCharset) { + switch (typeIdx) { + case 0: // byte[] + return (byte[]) value; + case 1: // external String + return value == null ? EMPTY_BYTES : ((String) value).getBytes(stringCharset); + case 2: // byte + return value == null ? EMPTY_BYTES : new byte[]{(byte) value}; + case 3: + return Bytes.toBytes((short) value); + case 4: + return Bytes.toBytes((int) value); + case 5: + return Bytes.toBytes((long) value); + case 6: + return Bytes.toBytes((float) value); + case 7: + return Bytes.toBytes((double) value); + case 8: + return Bytes.toBytes((boolean) value); + case 9: // sql.Timestamp encoded to Long + return Bytes.toBytes(((TimeStamp) value).getTime()); + case 10: // sql.Date encoded as long + return Bytes.toBytes(((Date) value).getTime()); + case 11: // sql.Time encoded as long + return Bytes.toBytes(((Time) value).getTime()); + case 12: + return Bytes.toBytes((BigDecimal) value); + case 13: + return ((BigInteger) value).toByteArray(); + + default: + throw new IllegalArgumentException("unsupported type index:" + typeIdx); + } + } + + /** + * Gets the type index (type representation in HBase connector) from the {@link TypeInformation}. + */ + public static int getTypeIndex(TypeInformation typeInfo) { + return getTypeIndex(typeInfo.getTypeClass()); + } + + /** + * Checks whether the given Class is a supported type in HBase connector. + */ + public static boolean isSupportedType(Class<?> clazz) { + return getTypeIndex(clazz) != -1; + } + + /** + * Checks whether the given {@link TypeInformation} is a supported type in HBase connector. + */ + public static boolean isSupportedType(TypeInformation typeInfo) { Review comment: Removed. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
