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[feat-#1062][redis] Add source connector and reader connector of redis.
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38 changes: 38 additions & 0 deletions
38
...is/src/main/java/com/dtstack/chunjun/connector/redis/converter/RedisRawTypeConverter.java
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| @@ -0,0 +1,38 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
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| package com.dtstack.chunjun.connector.redis.converter; | ||
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| import com.dtstack.chunjun.throwable.UnsupportedTypeException; | ||
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| import org.apache.flink.table.api.DataTypes; | ||
| import org.apache.flink.table.types.DataType; | ||
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| import java.util.Locale; | ||
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| /** @Author OT @Date 2022/7/27 */ | ||
| public class RedisRawTypeConverter { | ||
| public static DataType apply(String type) { | ||
| switch (type.toUpperCase(Locale.ENGLISH)) { | ||
| case "STRING": | ||
| return DataTypes.STRING(); | ||
| default: | ||
| throw new UnsupportedTypeException(type); | ||
| } | ||
| } | ||
| } |
41 changes: 41 additions & 0 deletions
41
...r-redis/src/main/java/com/dtstack/chunjun/connector/redis/inputsplit/RedisInputSplit.java
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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. | ||
| */ | ||
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| package com.dtstack.chunjun.connector.redis.inputsplit; | ||
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| import org.apache.flink.core.io.GenericInputSplit; | ||
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| import java.util.List; | ||
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| /** @Author OT @Date 2022/7/27 */ | ||
| public class RedisInputSplit extends GenericInputSplit { | ||
| private List<String> key; | ||
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| public RedisInputSplit(int partitionNumber, int totalNumberOfPartitions, List<String> key) { | ||
| super(partitionNumber, totalNumberOfPartitions); | ||
| this.key = key; | ||
| } | ||
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| public List<String> getKey() { | ||
| return key; | ||
| } | ||
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| public void setKey(List<String> key) { | ||
| this.key = key; | ||
| } | ||
| } |
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121 changes: 121 additions & 0 deletions
121
...ctor-redis/src/main/java/com/dtstack/chunjun/connector/redis/source/RedisInputFormat.java
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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. | ||
| */ | ||
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| package com.dtstack.chunjun.connector.redis.source; | ||
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| import com.dtstack.chunjun.connector.redis.conf.RedisConf; | ||
| import com.dtstack.chunjun.connector.redis.connection.RedisSyncClient; | ||
| import com.dtstack.chunjun.connector.redis.inputsplit.RedisInputSplit; | ||
| import com.dtstack.chunjun.connector.redis.util.RedisUtil; | ||
| import com.dtstack.chunjun.source.format.BaseRichInputFormat; | ||
| import com.dtstack.chunjun.throwable.ReadRecordException; | ||
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| import org.apache.flink.core.io.InputSplit; | ||
| import org.apache.flink.table.data.RowData; | ||
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| import org.apache.commons.lang3.StringUtils; | ||
| import redis.clients.jedis.JedisCommands; | ||
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| import java.io.IOException; | ||
| import java.util.HashSet; | ||
| import java.util.Iterator; | ||
| import java.util.LinkedList; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.Set; | ||
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| /** @Author OT @Date 2022/7/26 */ | ||
| public class RedisInputFormat extends BaseRichInputFormat { | ||
| private transient RedisSyncClient redisSyncClient; | ||
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| private transient Iterator<String> keyIterator; | ||
| /** redis Conf */ | ||
| private RedisConf redisConf; | ||
| /** jedis */ | ||
| private JedisCommands jedis; | ||
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| @Override | ||
| protected InputSplit[] createInputSplitsInternal(int minNumSplits) throws Exception { | ||
| redisSyncClient = new RedisSyncClient(redisConf); | ||
| jedis = redisSyncClient.getJedis(); | ||
| Set<String> keys = new HashSet(); | ||
| if (StringUtils.isNotBlank(redisConf.getKeyPrefix())) { | ||
| keys.addAll( | ||
| RedisUtil.getRedisKeys( | ||
| redisConf.getRedisConnectType(), jedis, redisConf.getKeyPrefix())); | ||
| } | ||
| Iterator<String> iterator = keys.iterator(); | ||
| RedisInputSplit[] inputSplits = new RedisInputSplit[minNumSplits]; | ||
| if (keys.size() == 0) { | ||
| throw new RuntimeException("There is no" + redisConf.getKeyPrefix() + "with key"); | ||
| } | ||
| int keySplitCount = keys.size() / minNumSplits; | ||
| for (int i = 0; i < inputSplits.length; i++) { | ||
| List<String> list = new LinkedList(); | ||
| for (int j = 0; j < keySplitCount && iterator.hasNext(); j++) { | ||
| list.add(iterator.next()); | ||
| } | ||
| inputSplits[i] = new RedisInputSplit(i, minNumSplits, list); | ||
| } | ||
| while (iterator.hasNext()) { | ||
| inputSplits[minNumSplits - 1].getKey().add(iterator.next()); | ||
| } | ||
| redisSyncClient.close(jedis); | ||
| return inputSplits; | ||
| } | ||
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| @Override | ||
| protected void openInternal(InputSplit inputSplit) throws IOException { | ||
| RedisInputSplit redisInputSplit = (RedisInputSplit) inputSplit; | ||
| redisSyncClient = new RedisSyncClient(redisConf); | ||
| jedis = redisSyncClient.getJedis(); | ||
| keyIterator = redisInputSplit.getKey().iterator(); | ||
| } | ||
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| @Override | ||
| protected RowData nextRecordInternal(RowData rowData) throws ReadRecordException { | ||
| if (!keyIterator.hasNext()) { | ||
| return null; | ||
| } | ||
| Map<String, String> map = jedis.hgetAll(keyIterator.next()); | ||
| try { | ||
| RowData row = rowConverter.toInternal(map); | ||
| return row; | ||
| } catch (Exception e) { | ||
| throw new ReadRecordException("", e, 0, rowData); | ||
| } | ||
| } | ||
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| @Override | ||
| protected void closeInternal() throws IOException { | ||
| redisSyncClient.close(jedis); | ||
| } | ||
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| @Override | ||
| public boolean reachedEnd() throws IOException { | ||
| return !keyIterator.hasNext(); | ||
| } | ||
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| public RedisConf getRedisConf() { | ||
| return redisConf; | ||
| } | ||
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| public void setRedisConf(RedisConf redisConf) { | ||
| this.redisConf = redisConf; | ||
| } | ||
| } |
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