TyrantLucifer commented on code in PR #3950: URL: https://github.com/apache/incubator-seatunnel/pull/3950#discussion_r1070302198
########## seatunnel-formats/seatunnel-format-json/src/main/java/org/apache/seatunnel/format/json/canal/CanalJsonDeserializationSchema.java: ########## @@ -0,0 +1,225 @@ +/* + * 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.seatunnel.format.json.canal; + +import static org.apache.seatunnel.api.table.type.BasicType.STRING_TYPE; +import static java.lang.String.format; + +import org.apache.seatunnel.api.serialization.DeserializationSchema; +import org.apache.seatunnel.api.source.Collector; +import org.apache.seatunnel.api.table.type.RowKind; +import org.apache.seatunnel.api.table.type.SeaTunnelDataType; +import org.apache.seatunnel.api.table.type.SeaTunnelRow; +import org.apache.seatunnel.api.table.type.SeaTunnelRowType; +import org.apache.seatunnel.format.json.JsonDeserializationSchema; + +import com.fasterxml.jackson.databind.JsonNode; + +import java.io.IOException; +import java.util.regex.Pattern; + +public class CanalJsonDeserializationSchema implements DeserializationSchema<SeaTunnelRow> { + + private static final long serialVersionUID = 1L; + + private static final String FIELD_OLD = "old"; + + private static final String OP_INSERT = "INSERT"; + + private static final String OP_UPDATE = "UPDATE"; + + private static final String OP_DELETE = "DELETE"; + + private static final String OP_CREATE = "CREATE"; + + private String database; + + private String table; + + /** Names of fields. */ + private final String[] fieldNames; + + /** Number of fields. */ + private final int fieldCount; + + private boolean ignoreParseErrors; + + /** Pattern of the specific database. */ + private final Pattern databasePattern; + + /** Pattern of the specific table. */ + private final Pattern tablePattern; + + private final JsonDeserializationSchema jsonDeserializer; + + public CanalJsonDeserializationSchema(SeaTunnelRowType physicalRowType, + String database, + String table, + boolean ignoreParseErrors + ) { + final SeaTunnelRowType jsonRowType = createJsonRowType(physicalRowType); + this.jsonDeserializer = new JsonDeserializationSchema( + false, + ignoreParseErrors, + jsonRowType + ); + this.database = database; + this.table = table; + this.fieldNames = physicalRowType.getFieldNames(); + this.fieldCount = physicalRowType.getTotalFields(); + this.ignoreParseErrors = ignoreParseErrors; + this.databasePattern = database == null ? null : Pattern.compile(database); + this.tablePattern = table == null ? null : Pattern.compile(table); + } + + @Override + public SeaTunnelRow deserialize(byte[] message) throws IOException { + return null; + } + + @Override + public void deserialize(byte[] message, Collector<SeaTunnelRow> out) throws IOException { + if (message == null || message.length == 0) { + return; + } + try { + final JsonNode root = jsonDeserializer.deserializeToJsonNode(message); + if (database != null) { + if (!databasePattern + .matcher(root.get("database").asText()) + .matches()) { + return; + } + } + if (table != null) { + if (!tablePattern + .matcher(root.get("table").asText()) + .matches()) { + return; + } + } + SeaTunnelRow row = jsonDeserializer.convertToRowData(root); + SeaTunnelRow data = (SeaTunnelRow) row.getField(0); + String type = row.getField(2).toString(); + if (OP_INSERT.equals(type)) { + out.collect(row); + } else if (OP_UPDATE.equals(type)) { + SeaTunnelRow after = (SeaTunnelRow) row.getField(0); + SeaTunnelRow before = (SeaTunnelRow) row.getField(1); + final JsonNode oldField = root.get(FIELD_OLD); + for (int f = 0; f < fieldCount; f++) { + if (before.isNullAt(f) && oldField.findValue(fieldNames[f]) == null) { + // fields in "old" (before) means the fields are changed + // fields not in "old" (before) means the fields are not changed + // so we just copy the not changed fields into before + before.setField(f, after.getField(f)); + } + } + before.setRowKind(RowKind.UPDATE_BEFORE); + after.setRowKind(RowKind.UPDATE_AFTER); + out.collect(before); + out.collect(after); + } else if (OP_DELETE.equals(type)) { + // "data" field is an array of row, contains deleted rows + data.setRowKind(RowKind.DELETE); + out.collect(data); + } else if (OP_CREATE.equals(type)) { + // "data" field is null and "type" is "CREATE" which means + // this is a DDL change event, and we should skip it. + return; + } else { + if (!ignoreParseErrors) { + throw new IOException( + format( + "Unknown \"type\" value \"%s\". The Canal JSON message is '%s'", + type, new String(message))); + } + } + + } catch (Throwable t) { + // a big try catch to protect the processing. + if (!ignoreParseErrors) { + throw new IOException( + format("Corrupt Canal JSON message '%s'.", new String(message)), t); + } + } + } + + @Override + public SeaTunnelDataType<SeaTunnelRow> getProducedType() { + return null; + } + + private static SeaTunnelRowType createJsonRowType( + SeaTunnelRowType physicalDataType) { + // Canal JSON contains other information, e.g. "ts", "sql", but we don't need them + SeaTunnelRowType root = + new SeaTunnelRowType(new String[]{"data", "old", "type", "database", "table"}, new SeaTunnelDataType[]{physicalDataType, physicalDataType, STRING_TYPE, STRING_TYPE, STRING_TYPE}); + return root; + } + + // ------------------------------------------------------------------------------------------ + // Builder + // ------------------------------------------------------------------------------------------ + + /** Creates A builder for building a {@link CanalJsonDeserializationSchema}. */ + public static Builder builder( + SeaTunnelRowType physicalDataType) { + return new Builder(physicalDataType); + } + + public static class Builder{ Review Comment: Use `lombok` instead of it. ########## seatunnel-formats/seatunnel-format-json/src/main/java/org/apache/seatunnel/format/json/canal/CanalJsonDeserializationSchema.java: ########## @@ -0,0 +1,225 @@ +/* + * 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.seatunnel.format.json.canal; + +import static org.apache.seatunnel.api.table.type.BasicType.STRING_TYPE; +import static java.lang.String.format; + +import org.apache.seatunnel.api.serialization.DeserializationSchema; +import org.apache.seatunnel.api.source.Collector; +import org.apache.seatunnel.api.table.type.RowKind; +import org.apache.seatunnel.api.table.type.SeaTunnelDataType; +import org.apache.seatunnel.api.table.type.SeaTunnelRow; +import org.apache.seatunnel.api.table.type.SeaTunnelRowType; +import org.apache.seatunnel.format.json.JsonDeserializationSchema; + +import com.fasterxml.jackson.databind.JsonNode; + +import java.io.IOException; +import java.util.regex.Pattern; + +public class CanalJsonDeserializationSchema implements DeserializationSchema<SeaTunnelRow> { + + private static final long serialVersionUID = 1L; + + private static final String FIELD_OLD = "old"; + + private static final String OP_INSERT = "INSERT"; + + private static final String OP_UPDATE = "UPDATE"; + + private static final String OP_DELETE = "DELETE"; + + private static final String OP_CREATE = "CREATE"; + + private String database; + + private String table; + + /** Names of fields. */ + private final String[] fieldNames; + + /** Number of fields. */ + private final int fieldCount; + + private boolean ignoreParseErrors; + + /** Pattern of the specific database. */ + private final Pattern databasePattern; + + /** Pattern of the specific table. */ + private final Pattern tablePattern; + + private final JsonDeserializationSchema jsonDeserializer; + + public CanalJsonDeserializationSchema(SeaTunnelRowType physicalRowType, + String database, + String table, + boolean ignoreParseErrors + ) { + final SeaTunnelRowType jsonRowType = createJsonRowType(physicalRowType); + this.jsonDeserializer = new JsonDeserializationSchema( + false, + ignoreParseErrors, + jsonRowType + ); + this.database = database; + this.table = table; + this.fieldNames = physicalRowType.getFieldNames(); + this.fieldCount = physicalRowType.getTotalFields(); + this.ignoreParseErrors = ignoreParseErrors; + this.databasePattern = database == null ? null : Pattern.compile(database); + this.tablePattern = table == null ? null : Pattern.compile(table); + } + + @Override + public SeaTunnelRow deserialize(byte[] message) throws IOException { + return null; + } + + @Override + public void deserialize(byte[] message, Collector<SeaTunnelRow> out) throws IOException { + if (message == null || message.length == 0) { + return; + } + try { + final JsonNode root = jsonDeserializer.deserializeToJsonNode(message); + if (database != null) { + if (!databasePattern + .matcher(root.get("database").asText()) + .matches()) { + return; + } + } + if (table != null) { + if (!tablePattern + .matcher(root.get("table").asText()) + .matches()) { + return; + } + } + SeaTunnelRow row = jsonDeserializer.convertToRowData(root); + SeaTunnelRow data = (SeaTunnelRow) row.getField(0); + String type = row.getField(2).toString(); + if (OP_INSERT.equals(type)) { + out.collect(row); + } else if (OP_UPDATE.equals(type)) { + SeaTunnelRow after = (SeaTunnelRow) row.getField(0); + SeaTunnelRow before = (SeaTunnelRow) row.getField(1); + final JsonNode oldField = root.get(FIELD_OLD); + for (int f = 0; f < fieldCount; f++) { + if (before.isNullAt(f) && oldField.findValue(fieldNames[f]) == null) { + // fields in "old" (before) means the fields are changed + // fields not in "old" (before) means the fields are not changed + // so we just copy the not changed fields into before + before.setField(f, after.getField(f)); + } + } + before.setRowKind(RowKind.UPDATE_BEFORE); + after.setRowKind(RowKind.UPDATE_AFTER); + out.collect(before); + out.collect(after); + } else if (OP_DELETE.equals(type)) { + // "data" field is an array of row, contains deleted rows + data.setRowKind(RowKind.DELETE); + out.collect(data); + } else if (OP_CREATE.equals(type)) { + // "data" field is null and "type" is "CREATE" which means + // this is a DDL change event, and we should skip it. + return; + } else { + if (!ignoreParseErrors) { + throw new IOException( + format( + "Unknown \"type\" value \"%s\". The Canal JSON message is '%s'", + type, new String(message))); + } + } + + } catch (Throwable t) { + // a big try catch to protect the processing. + if (!ignoreParseErrors) { + throw new IOException( Review Comment: Unfied exception ########## seatunnel-formats/seatunnel-format-json/src/main/java/org/apache/seatunnel/format/json/canal/CanalJsonSerializationSchema.java: ########## @@ -0,0 +1,81 @@ +/* + * 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.seatunnel.format.json.canal; + +import static org.apache.seatunnel.api.table.type.BasicType.STRING_TYPE; +import static org.apache.seatunnel.api.table.type.RowKind.INSERT; + +import org.apache.seatunnel.api.serialization.SerializationSchema; +import org.apache.seatunnel.api.table.type.RowKind; +import org.apache.seatunnel.api.table.type.SeaTunnelDataType; +import org.apache.seatunnel.api.table.type.SeaTunnelRow; +import org.apache.seatunnel.api.table.type.SeaTunnelRowType; +import org.apache.seatunnel.format.json.JsonSerializationSchema; + +public class CanalJsonSerializationSchema implements SerializationSchema { + + private static final long serialVersionUID = 1L; + + private static final String OP_INSERT = "INSERT"; + private static final String OP_DELETE = "DELETE"; + + private transient SeaTunnelRow reuse; + + + private final JsonSerializationSchema jsonSerializer; + + public CanalJsonSerializationSchema( + SeaTunnelRowType rowType) { + this.jsonSerializer = new JsonSerializationSchema(createJsonRowType(rowType)); + this.reuse = new SeaTunnelRow(2); + } + + @Override + public byte[] serialize(SeaTunnelRow row) { + try { + String opType = rowKind2String(row.getRowKind()); + reuse.setField(0, row); + reuse.setField(1, opType); + return jsonSerializer.serialize(reuse); + } catch (Throwable t) { + throw new RuntimeException("Could not serialize row '" + row + "'.", t); Review Comment: Unfied exception ########## seatunnel-formats/seatunnel-format-json/src/main/java/org/apache/seatunnel/format/json/canal/CanalJsonDeserializationSchema.java: ########## @@ -0,0 +1,225 @@ +/* + * 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.seatunnel.format.json.canal; + +import static org.apache.seatunnel.api.table.type.BasicType.STRING_TYPE; +import static java.lang.String.format; + +import org.apache.seatunnel.api.serialization.DeserializationSchema; +import org.apache.seatunnel.api.source.Collector; +import org.apache.seatunnel.api.table.type.RowKind; +import org.apache.seatunnel.api.table.type.SeaTunnelDataType; +import org.apache.seatunnel.api.table.type.SeaTunnelRow; +import org.apache.seatunnel.api.table.type.SeaTunnelRowType; +import org.apache.seatunnel.format.json.JsonDeserializationSchema; + +import com.fasterxml.jackson.databind.JsonNode; + +import java.io.IOException; +import java.util.regex.Pattern; + +public class CanalJsonDeserializationSchema implements DeserializationSchema<SeaTunnelRow> { + + private static final long serialVersionUID = 1L; + + private static final String FIELD_OLD = "old"; + + private static final String OP_INSERT = "INSERT"; + + private static final String OP_UPDATE = "UPDATE"; + + private static final String OP_DELETE = "DELETE"; + + private static final String OP_CREATE = "CREATE"; + + private String database; + + private String table; + + /** Names of fields. */ + private final String[] fieldNames; + + /** Number of fields. */ + private final int fieldCount; + + private boolean ignoreParseErrors; + + /** Pattern of the specific database. */ + private final Pattern databasePattern; + + /** Pattern of the specific table. */ + private final Pattern tablePattern; + + private final JsonDeserializationSchema jsonDeserializer; + + public CanalJsonDeserializationSchema(SeaTunnelRowType physicalRowType, + String database, + String table, + boolean ignoreParseErrors + ) { + final SeaTunnelRowType jsonRowType = createJsonRowType(physicalRowType); + this.jsonDeserializer = new JsonDeserializationSchema( + false, + ignoreParseErrors, + jsonRowType + ); + this.database = database; + this.table = table; + this.fieldNames = physicalRowType.getFieldNames(); + this.fieldCount = physicalRowType.getTotalFields(); + this.ignoreParseErrors = ignoreParseErrors; + this.databasePattern = database == null ? null : Pattern.compile(database); + this.tablePattern = table == null ? null : Pattern.compile(table); + } + + @Override + public SeaTunnelRow deserialize(byte[] message) throws IOException { + return null; + } + + @Override + public void deserialize(byte[] message, Collector<SeaTunnelRow> out) throws IOException { + if (message == null || message.length == 0) { + return; + } + try { + final JsonNode root = jsonDeserializer.deserializeToJsonNode(message); + if (database != null) { + if (!databasePattern + .matcher(root.get("database").asText()) + .matches()) { + return; + } + } + if (table != null) { + if (!tablePattern + .matcher(root.get("table").asText()) + .matches()) { + return; + } + } + SeaTunnelRow row = jsonDeserializer.convertToRowData(root); + SeaTunnelRow data = (SeaTunnelRow) row.getField(0); + String type = row.getField(2).toString(); + if (OP_INSERT.equals(type)) { + out.collect(row); + } else if (OP_UPDATE.equals(type)) { + SeaTunnelRow after = (SeaTunnelRow) row.getField(0); + SeaTunnelRow before = (SeaTunnelRow) row.getField(1); + final JsonNode oldField = root.get(FIELD_OLD); + for (int f = 0; f < fieldCount; f++) { + if (before.isNullAt(f) && oldField.findValue(fieldNames[f]) == null) { + // fields in "old" (before) means the fields are changed + // fields not in "old" (before) means the fields are not changed + // so we just copy the not changed fields into before + before.setField(f, after.getField(f)); + } + } + before.setRowKind(RowKind.UPDATE_BEFORE); + after.setRowKind(RowKind.UPDATE_AFTER); + out.collect(before); + out.collect(after); + } else if (OP_DELETE.equals(type)) { + // "data" field is an array of row, contains deleted rows + data.setRowKind(RowKind.DELETE); + out.collect(data); + } else if (OP_CREATE.equals(type)) { + // "data" field is null and "type" is "CREATE" which means + // this is a DDL change event, and we should skip it. + return; + } else { + if (!ignoreParseErrors) { + throw new IOException( Review Comment: Unfied exception ########## seatunnel-formats/seatunnel-format-json/src/main/java/org/apache/seatunnel/format/json/canal/CanalJsonSerializationSchema.java: ########## @@ -0,0 +1,81 @@ +/* + * 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.seatunnel.format.json.canal; + +import static org.apache.seatunnel.api.table.type.BasicType.STRING_TYPE; +import static org.apache.seatunnel.api.table.type.RowKind.INSERT; + +import org.apache.seatunnel.api.serialization.SerializationSchema; +import org.apache.seatunnel.api.table.type.RowKind; +import org.apache.seatunnel.api.table.type.SeaTunnelDataType; +import org.apache.seatunnel.api.table.type.SeaTunnelRow; +import org.apache.seatunnel.api.table.type.SeaTunnelRowType; +import org.apache.seatunnel.format.json.JsonSerializationSchema; + +public class CanalJsonSerializationSchema implements SerializationSchema { + + private static final long serialVersionUID = 1L; + + private static final String OP_INSERT = "INSERT"; + private static final String OP_DELETE = "DELETE"; + + private transient SeaTunnelRow reuse; + + + private final JsonSerializationSchema jsonSerializer; + + public CanalJsonSerializationSchema( + SeaTunnelRowType rowType) { + this.jsonSerializer = new JsonSerializationSchema(createJsonRowType(rowType)); + this.reuse = new SeaTunnelRow(2); + } + + @Override + public byte[] serialize(SeaTunnelRow row) { + try { + String opType = rowKind2String(row.getRowKind()); + reuse.setField(0, row); + reuse.setField(1, opType); + return jsonSerializer.serialize(reuse); + } catch (Throwable t) { + throw new RuntimeException("Could not serialize row '" + row + "'.", t); + } + } + + private String rowKind2String(RowKind rowKind) { + switch (rowKind) { + case INSERT: + case UPDATE_AFTER: + return OP_INSERT; + case UPDATE_BEFORE: + case DELETE: + return OP_DELETE; + default: + throw new UnsupportedOperationException( Review Comment: Unfied exception ########## seatunnel-api/src/main/java/org/apache/seatunnel/api/table/type/BasicType.java: ########## @@ -31,6 +31,7 @@ public static final BasicType<Float> FLOAT_TYPE = new BasicType<>(Float.class, SqlType.FLOAT); public static final BasicType<Double> DOUBLE_TYPE = new BasicType<>(Double.class, SqlType.DOUBLE); public static final BasicType<Void> VOID_TYPE = new BasicType<>(Void.class, SqlType.NULL); + public static final BasicType<SeaTunnelRow> ROW_TYPE = new BasicType<>(SeaTunnelRow.class, SqlType.ROW); Review Comment: Revert -- This is an automated message from the Apache Git Service. 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