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[GOBBLIN-1697]Have a separate resource handler to rely on CDC stream …
…to do message forwarding (apache#3549) * address comments * use connectionmanager when httpclient is not cloesable * fix test case to test orchestor as one listener of flow spec * remove unintentional change * [GOBBLIN-1697]Have a separate resource handler to rely on CDC stream to do message forwarding * fix compilation error * address comments * address comments * address comments * update outdated javadoc Co-authored-by: Zihan Li <[email protected]>
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89
...runtime/src/main/java/org/apache/gobblin/runtime/spec_store/MysqlSpecStoreWithUpdate.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 org.apache.gobblin.runtime.spec_store; | ||
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| import com.google.common.base.Charsets; | ||
| import com.typesafe.config.Config; | ||
| import java.io.ByteArrayInputStream; | ||
| import java.io.IOException; | ||
| import java.net.URI; | ||
| import java.sql.PreparedStatement; | ||
| import java.sql.SQLException; | ||
| import org.apache.gobblin.runtime.api.FlowSpec; | ||
| import org.apache.gobblin.runtime.api.Spec; | ||
| import org.apache.gobblin.runtime.api.SpecSerDe; | ||
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| public class MysqlSpecStoreWithUpdate extends MysqlSpecStore{ | ||
| // In this case, when we try to insert but key is existed, we will throw exception | ||
| protected static final String INSERT_STATEMENT_WITHOUT_UPDATE = "INSERT INTO %s (spec_uri, flow_group, flow_name, template_uri, " | ||
| + "user_to_proxy, source_identifier, destination_identifier, schedule, tag, isRunImmediately, owning_group, spec, spec_json) " | ||
| + "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)"; | ||
| public MysqlSpecStoreWithUpdate(Config config, SpecSerDe specSerDe) throws IOException { | ||
| super(config, specSerDe); | ||
| } | ||
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| /** Bundle all changes following from schema differences against the base class. */ | ||
| protected class SpecificSqlStatementsWithUpdate extends SpecificSqlStatements { | ||
| public void completeUpdatePreparedStatement(PreparedStatement statement, Spec spec, long modifiedWatermark) throws | ||
| SQLException { | ||
| FlowSpec flowSpec = (FlowSpec) spec; | ||
| URI specUri = flowSpec.getUri(); | ||
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| int i = 0; | ||
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| statement.setBlob(++i, new ByteArrayInputStream(MysqlSpecStoreWithUpdate.this.specSerDe.serialize(flowSpec))); | ||
| statement.setString(++i, new String(MysqlSpecStoreWithUpdate.this.specSerDe.serialize(flowSpec), Charsets.UTF_8)); | ||
| statement.setString(++i, specUri.toString()); | ||
| statement.setLong(++i, modifiedWatermark); | ||
| } | ||
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| @Override | ||
| protected String getTablelessInsertStatement() { return INSERT_STATEMENT_WITHOUT_UPDATE; } | ||
| } | ||
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| @Override | ||
| protected SqlStatements createSqlStatements() { | ||
| return new SpecificSqlStatementsWithUpdate(); | ||
| } | ||
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| @Override | ||
| // TODO: fix to obey the `SpecStore` contract of returning the *updated* `Spec` | ||
| public Spec updateSpecImpl(Spec spec) throws IOException { | ||
| updateSpecImpl(spec, Long.MAX_VALUE); | ||
| return spec; | ||
| } | ||
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| @Override | ||
| // TODO: fix to obey the `SpecStore` contract of returning the *updated* `Spec` | ||
| // Update {@link Spec} in the {@link SpecStore} when current modification time is smaller than {@link modifiedWatermark}. | ||
| public Spec updateSpecImpl(Spec spec, long modifiedWatermark) throws IOException { | ||
| withPreparedStatement(this.sqlStatements.updateStatement, statement -> { | ||
| ((SpecificSqlStatementsWithUpdate)this.sqlStatements).completeUpdatePreparedStatement(statement, spec, modifiedWatermark); | ||
| int i = statement.executeUpdate(); | ||
| if (i == 0) { | ||
| throw new IOException("Spec does not exist or concurrent update happens, please check current spec and update again"); | ||
| } | ||
| return null; // (type: `Void`) | ||
| }, true); | ||
| return spec; | ||
| } | ||
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| } |
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