diff --git a/docs/src/main/sphinx/develop/spi-overview.md b/docs/src/main/sphinx/develop/spi-overview.md index 872619f2dda1..c1367e1cc6a3 100644 --- a/docs/src/main/sphinx/develop/spi-overview.md +++ b/docs/src/main/sphinx/develop/spi-overview.md @@ -87,6 +87,41 @@ of a library that Trino uses internally. For an example `pom.xml` file, see the example HTTP connector in the `plugin/trino-example-http` directory in the Trino source tree. +## Building plugins via Maven Archetype + +To generate a complete example plugin Maven project, use the Maven Archetype. +It will require the following parameters: + +* `archetypeVersion` should match a released Trino version +* `groupId` and `artifactId` are chosen by the plugin author +* `classPrefix` is used as the prefix for all Java classes in the plugin +* `connectorName` is used as the name of the connector + +After creating the project, it also needs to be initialized as a git repository +and commited, before it can be built. Example: + +```bash +mvn archetype:generate \ + -DarchetypeGroupId=io.trino \ + -DarchetypeArtifactId=trino-plugin-archetype \ + -DarchetypeVersion=$trinoVersion \ + -DgroupId=$groupId \ + -DartifactId=$artifactId \ + -DclassPrefix=$classPrefix \ + -DconnectorName=$connectorName + +cd $artifactId +git init +git add --all . +git commit -m "Initial commit" + +mvn clean package +``` + +The example connector provides a single table with 3 columns and queries +for table table return a single row. To change that, start with modifying +the `ExampleMetadata` and `ExampleRecordSetProvider` classes. + ## Deploying a custom plugin Because Trino plugins use the `trino-plugin` packaging type, building diff --git a/plugin/trino-example-plugin/LICENSE b/plugin/trino-example-plugin/LICENSE new file mode 100644 index 000000000000..d64569567334 --- /dev/null +++ b/plugin/trino-example-plugin/LICENSE @@ -0,0 +1,202 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed 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. diff --git a/plugin/trino-example-plugin/README.md b/plugin/trino-example-plugin/README.md new file mode 100644 index 000000000000..0d6401268822 --- /dev/null +++ b/plugin/trino-example-plugin/README.md @@ -0,0 +1,62 @@ +Trino Plugin +============ + +This is a [Trino](http://trino.io/) plugin that provides a connector. + +## Usage + +Download one of the ZIP packages, unzip it and copy the `trino-example-plugin-0.1` directory to the plugin directory on every node in your Trino cluster. +Create a `example.properties` file in your Trino catalog directory and set all the required properties. + +``` +connector.name=example +``` + +After reloading Trino, you should be able to connect to the `example` catalog. + +## Build + +Run all the unit tests: +```bash +mvn test +``` + +Creates a deployable zip file: +```bash +mvn clean package +``` + +Unzip the archive from the target directory to use the connector in your Trino cluster. +```bash +unzip target/*.zip -d ${PLUGIN_DIRECTORY}/ +mv ${PLUGIN_DIRECTORY}/trino-example-plugin-* ${PLUGIN_DIRECTORY}/trino-example-plugin +``` + +## Debug + +To test and debug the connector locally, run the `ExampleQueryRunner` class located in tests: +```bash +mvn test-compile exec:java -Dexec.mainClass="com.example.ExampleQueryRunner" -Dexec.classpathScope=test +``` + +And then run the Trino CLI using `trino --server localhost:8080 --no-progress` and query it: +``` +trino> show catalogs; + Catalog +--------- + example + system +(2 rows) + +trino> show tables from example.default; + Table +------------ + single_row +(1 row) + +trino> select * from example.default.single_row; + id | type | name +----+---------------+--------- + x | default-value | my-name +(1 row) +``` diff --git a/plugin/trino-example-plugin/pom.xml b/plugin/trino-example-plugin/pom.xml new file mode 100644 index 000000000000..48bbe5473c41 --- /dev/null +++ b/plugin/trino-example-plugin/pom.xml @@ -0,0 +1,199 @@ + + + 4.0.0 + + + io.airlift + airbase + 150 + + + io.trino + trino-example-plugin + 0.1-SNAPSHOT + trino-plugin + + + + Apache License 2.0 + http://www.apache.org/licenses/LICENSE-2.0 + repo + + + + + 21 + + \${project.basedir} + + true + + true + false + + true + false + + 439 + 240 + 2.24.1 + 2.12.7 + + -missing + + + + + + com.google.guava + guava + + + + com.google.inject + guice + + + + io.airlift + bootstrap + ${dep.airlift.version} + + + + io.airlift + configuration + ${dep.airlift.version} + + + + javax.validation + validation-api + + + + com.fasterxml.jackson.core + jackson-annotations + provided + + + + io.airlift + slice + provided + + + + io.opentelemetry + opentelemetry-api + provided + + + + io.opentelemetry + opentelemetry-context + provided + + + + io.trino + trino-spi + ${dep.trino.version} + provided + + + + com.google.errorprone + error_prone_annotations + ${dep.errorprone.version} + runtime + + + + io.airlift + log + ${dep.airlift.version} + runtime + + + + io.airlift + log-manager + ${dep.airlift.version} + runtime + + + + io.airlift + units + 1.10 + runtime + + + + io.airlift + testing + ${dep.airlift.version} + test + + + + io.trino + trino-main + ${dep.trino.version} + test + + + + io.trino + trino-memory + ${dep.trino.version} + test + + + + io.trino + trino-testing + ${dep.trino.version} + test + + + + io.trino + trino-tpch + ${dep.trino.version} + test + + + + org.junit.jupiter + junit-jupiter + test + + + + org.junit.jupiter + junit-jupiter-api + test + + + + + + + + io.trino + trino-maven-plugin + 13 + true + + + + ca.vanzyl.provisio.maven.plugins + provisio-maven-plugin + 1.0.21 + true + + + + diff --git a/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleColumnHandle.java b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleColumnHandle.java new file mode 100644 index 000000000000..3bed79573f40 --- /dev/null +++ b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleColumnHandle.java @@ -0,0 +1,67 @@ +/* + * Licensed 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 io.trino.plugin.example; + +import com.fasterxml.jackson.annotation.JsonCreator; +import com.fasterxml.jackson.annotation.JsonProperty; +import io.trino.spi.connector.ColumnHandle; +import io.trino.spi.type.Type; + +import java.util.Objects; + +public class ExampleColumnHandle + implements ColumnHandle +{ + private final String name; + private final Type type; + + @JsonCreator + public ExampleColumnHandle(String name, Type type) + { + this.name = name; + this.type = type; + } + + @JsonProperty + public String getName() + { + return name; + } + + @JsonProperty + public Type getType() + { + return type; + } + + @Override + public boolean equals(Object o) + { + if (this == o) { + return true; + } + if (o == null || getClass() != o.getClass()) { + return false; + } + ExampleColumnHandle that = (ExampleColumnHandle) o; + return Objects.equals(name, that.name); + } + + @Override + public int hashCode() + { + return Objects.hash(name); + } +} diff --git a/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleConfig.java b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleConfig.java new file mode 100644 index 000000000000..eb0599972a9e --- /dev/null +++ b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleConfig.java @@ -0,0 +1,39 @@ +/* + * Licensed 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 io.trino.plugin.example; + +import io.airlift.configuration.Config; +import io.airlift.configuration.ConfigDescription; + +import javax.validation.constraints.NotNull; + +public class ExampleConfig +{ + private String defaultType = "default-value"; + + @NotNull + public String getDefaultType() + { + return defaultType; + } + + @Config("default-type") + @ConfigDescription("Default value for the type column") + public ExampleConfig setDefaultType(String value) + { + this.defaultType = value; + return this; + } +} diff --git a/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleConnector.java b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleConnector.java new file mode 100644 index 000000000000..7b7dcc8b6f6b --- /dev/null +++ b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleConnector.java @@ -0,0 +1,70 @@ +/* + * Licensed 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 io.trino.plugin.example; + +import com.google.inject.Inject; +import io.trino.spi.connector.Connector; +import io.trino.spi.connector.ConnectorMetadata; +import io.trino.spi.connector.ConnectorRecordSetProvider; +import io.trino.spi.connector.ConnectorSession; +import io.trino.spi.connector.ConnectorSplitManager; +import io.trino.spi.connector.ConnectorTransactionHandle; +import io.trino.spi.transaction.IsolationLevel; + +import static io.trino.plugin.example.ExampleTransactionHandle.INSTANCE; +import static java.util.Objects.requireNonNull; + +public class ExampleConnector + implements Connector +{ + private final ExampleMetadata metadata; + private final ExampleSplitManager splitManager; + private final ExampleRecordSetProvider recordSetProvider; + + @Inject + public ExampleConnector( + ExampleMetadata metadata, + ExampleSplitManager splitManager, + ExampleRecordSetProvider recordSetProvider) + { + this.metadata = requireNonNull(metadata, "metadata is null"); + this.splitManager = requireNonNull(splitManager, "splitManager is null"); + this.recordSetProvider = requireNonNull(recordSetProvider, "recordSetProvider is null"); + } + + @Override + public ConnectorTransactionHandle beginTransaction(IsolationLevel isolationLevel, boolean readOnly, boolean autoCommit) + { + return INSTANCE; + } + + @Override + public ConnectorMetadata getMetadata(ConnectorSession session, ConnectorTransactionHandle transaction) + { + return metadata; + } + + @Override + public ConnectorSplitManager getSplitManager() + { + return splitManager; + } + + @Override + public ConnectorRecordSetProvider getRecordSetProvider() + { + return recordSetProvider; + } +} diff --git a/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleConnectorFactory.java b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleConnectorFactory.java new file mode 100644 index 000000000000..22137f1e5d9a --- /dev/null +++ b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleConnectorFactory.java @@ -0,0 +1,56 @@ +/* + * Licensed 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 io.trino.plugin.example; + +import com.google.inject.Injector; +import io.airlift.bootstrap.Bootstrap; +import io.trino.spi.connector.Connector; +import io.trino.spi.connector.ConnectorContext; +import io.trino.spi.connector.ConnectorFactory; + +import java.util.Map; + +import static java.util.Objects.requireNonNull; + +public class ExampleConnectorFactory + implements ConnectorFactory +{ + public static final String CONNECTOR_NAME = "example_connector"; + + @Override + public String getName() + { + return CONNECTOR_NAME; + } + + @Override + public Connector create(String s, Map requiredConfig, ConnectorContext context) + { + requireNonNull(requiredConfig, "requiredConfig is null"); + + // A plugin is not required to use Guice; it is just very convenient + Bootstrap app = new Bootstrap( + new ExampleModule( + context.getNodeManager(), + context.getTypeManager())); + + Injector injector = app + .doNotInitializeLogging() + .setRequiredConfigurationProperties(requiredConfig) + .initialize(); + + return injector.getInstance(ExampleConnector.class); + } +} diff --git a/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleMetadata.java b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleMetadata.java new file mode 100644 index 000000000000..fe4280884e58 --- /dev/null +++ b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleMetadata.java @@ -0,0 +1,123 @@ +/* + * Licensed 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 io.trino.plugin.example; + +import com.google.common.collect.ImmutableList; +import com.google.common.collect.ImmutableMap; +import io.trino.spi.connector.ColumnHandle; +import io.trino.spi.connector.ColumnMetadata; +import io.trino.spi.connector.ConnectorMetadata; +import io.trino.spi.connector.ConnectorSession; +import io.trino.spi.connector.ConnectorTableHandle; +import io.trino.spi.connector.ConnectorTableMetadata; +import io.trino.spi.connector.ConnectorTableProperties; +import io.trino.spi.connector.SchemaTableName; +import io.trino.spi.connector.SchemaTablePrefix; +import io.trino.spi.connector.TableColumnsMetadata; + +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.Optional; + +import static io.trino.spi.type.VarcharType.VARCHAR; +import static java.util.stream.Collectors.toList; +import static java.util.stream.Collectors.toMap; + +public class ExampleMetadata + implements ConnectorMetadata +{ + public static final String SCHEMA_NAME = "default"; + + // TODO replace with the actual tables provided by this connector + public static final Map> columns = new ImmutableMap.Builder>() + .put("single_row", ImmutableList.of( + new ColumnMetadata("id", VARCHAR), + new ColumnMetadata("type", VARCHAR), + new ColumnMetadata("name", VARCHAR))) + .build(); + + @Override + public List listSchemaNames(ConnectorSession connectorSession) + { + return List.of(SCHEMA_NAME); + } + + @Override + public ConnectorTableHandle getTableHandle(ConnectorSession connectorSession, SchemaTableName schemaTableName) + { + if (!schemaTableName.getSchemaName().equals(SCHEMA_NAME)) { + return null; + } + return new ExampleTableHandle(schemaTableName); + } + + @Override + public ConnectorTableMetadata getTableMetadata( + ConnectorSession connectorSession, + ConnectorTableHandle connectorTableHandle) + { + ExampleTableHandle tableHandle = (ExampleTableHandle) connectorTableHandle; + SchemaTableName schemaTableName = tableHandle.getSchemaTableName(); + return new ConnectorTableMetadata( + schemaTableName, + columns.get(schemaTableName.getTableName())); + } + + @Override + public List listTables(ConnectorSession session, Optional schemaName) + { + return columns + .keySet() + .stream() + .map(table -> new SchemaTableName(SCHEMA_NAME, table)) + .collect(toList()); + } + + @Override + public Map getColumnHandles( + ConnectorSession connectorSession, + ConnectorTableHandle connectorTableHandle) + { + return getTableMetadata(connectorSession, connectorTableHandle).getColumns().stream() + .collect(toMap(ColumnMetadata::getName, column -> new ExampleColumnHandle(column.getName(), column.getType()))); + } + + @Override + public ColumnMetadata getColumnMetadata( + ConnectorSession connectorSession, + ConnectorTableHandle connectorTableHandle, + ColumnHandle columnHandle) + { + ExampleColumnHandle handle = (ExampleColumnHandle) columnHandle; + return new ColumnMetadata(handle.getName(), handle.getType()); + } + + @Override + public ConnectorTableProperties getTableProperties(ConnectorSession session, ConnectorTableHandle table) + { + return new ConnectorTableProperties(); + } + + @Override + public Iterator streamTableColumns(ConnectorSession session, SchemaTablePrefix prefix) + { + return columns.entrySet().stream() + .map(entry -> TableColumnsMetadata.forTable( + new SchemaTableName(prefix.getSchema().orElse(""), entry.getKey()), + entry.getValue())) + .iterator(); + } +} diff --git a/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleModule.java b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleModule.java new file mode 100644 index 000000000000..92a8f9564889 --- /dev/null +++ b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleModule.java @@ -0,0 +1,50 @@ +/* + * Licensed 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 io.trino.plugin.example; + +import com.google.inject.Binder; +import com.google.inject.Module; +import com.google.inject.Scopes; +import io.trino.spi.NodeManager; +import io.trino.spi.type.TypeManager; + +import static io.airlift.configuration.ConfigBinder.configBinder; +import static java.util.Objects.requireNonNull; + +public class ExampleModule + implements Module +{ + private final NodeManager nodeManager; + private final TypeManager typeManager; + + public ExampleModule(NodeManager nodeManager, TypeManager typeManager) + { + this.nodeManager = requireNonNull(nodeManager, "nodeManager is null"); + this.typeManager = requireNonNull(typeManager, "typeManager is null"); + } + + @Override + public void configure(Binder binder) + { + binder.bind(NodeManager.class).toInstance(nodeManager); + binder.bind(TypeManager.class).toInstance(typeManager); + + binder.bind(ExampleConnector.class).in(Scopes.SINGLETON); + binder.bind(ExampleMetadata.class).in(Scopes.SINGLETON); + binder.bind(ExampleSplitManager.class).in(Scopes.SINGLETON); + binder.bind(ExampleRecordSetProvider.class).in(Scopes.SINGLETON); + configBinder(binder).bindConfig(ExampleConfig.class); + } +} diff --git a/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExamplePlugin.java b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExamplePlugin.java new file mode 100644 index 000000000000..569c7a929e44 --- /dev/null +++ b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExamplePlugin.java @@ -0,0 +1,29 @@ +/* + * Licensed 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 io.trino.plugin.example; + +import com.google.common.collect.ImmutableList; +import io.trino.spi.Plugin; +import io.trino.spi.connector.ConnectorFactory; + +public class ExamplePlugin + implements Plugin +{ + @Override + public Iterable getConnectorFactories() + { + return ImmutableList.of(new ExampleConnectorFactory()); + } +} diff --git a/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleRecordSetProvider.java b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleRecordSetProvider.java new file mode 100644 index 000000000000..5932ce55ffcd --- /dev/null +++ b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleRecordSetProvider.java @@ -0,0 +1,92 @@ +/* + * Licensed 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 io.trino.plugin.example; + +import com.google.inject.Inject; +import io.trino.spi.connector.ColumnHandle; +import io.trino.spi.connector.ColumnMetadata; +import io.trino.spi.connector.ConnectorRecordSetProvider; +import io.trino.spi.connector.ConnectorSession; +import io.trino.spi.connector.ConnectorSplit; +import io.trino.spi.connector.ConnectorTableHandle; +import io.trino.spi.connector.ConnectorTableMetadata; +import io.trino.spi.connector.ConnectorTransactionHandle; +import io.trino.spi.connector.InMemoryRecordSet; +import io.trino.spi.connector.RecordSet; +import io.trino.spi.type.Type; + +import java.util.List; +import java.util.stream.StreamSupport; + +import static java.util.stream.Collectors.toList; + +public class ExampleRecordSetProvider + implements ConnectorRecordSetProvider +{ + private final String defaultType; + private final ExampleMetadata metadata; + + @Inject + public ExampleRecordSetProvider(ExampleConfig config, ExampleMetadata metadata) + { + this.defaultType = config.getDefaultType(); + this.metadata = metadata; + } + + @Override + public RecordSet getRecordSet( + ConnectorTransactionHandle connectorTransactionHandle, + ConnectorSession connectorSession, + ConnectorSplit connectorSplit, + ConnectorTableHandle table, + List list) + { + List columnHandles = list.stream() + .map(c -> (ExampleColumnHandle) c) + .collect(toList()); + ConnectorTableMetadata tableMetadata = metadata.getTableMetadata(connectorSession, table); + + List columnIndexes = columnHandles.stream() + .map(column -> { + int index = 0; + for (ColumnMetadata columnMetadata : tableMetadata.getColumns()) { + if (columnMetadata.getName().equalsIgnoreCase(column.getName())) { + return index; + } + index++; + } + throw new IllegalStateException("Unknown column: " + column.getName()); + }) + .collect(toList()); + + Iterable> rows = getRows(); + Iterable> mappedRows = StreamSupport.stream(rows.spliterator(), false) + .map(row -> columnIndexes.stream() + .map(row::get) + .collect(toList())).collect(toList()); + + List mappedTypes = columnHandles.stream() + .map(ExampleColumnHandle::getType) + .collect(toList()); + return new InMemoryRecordSet(mappedTypes, mappedRows); + } + + private Iterable> getRows() + { + // TODO replace the list with an iterable that provides the data read from the data source for this connector + return List.of( + List.of("x", defaultType, "my-name")); + } +} diff --git a/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleSplit.java b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleSplit.java new file mode 100644 index 000000000000..8d65a09f7a02 --- /dev/null +++ b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleSplit.java @@ -0,0 +1,63 @@ +/* + * Licensed 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 io.trino.plugin.example; + +import com.fasterxml.jackson.annotation.JsonCreator; +import com.fasterxml.jackson.annotation.JsonProperty; +import io.trino.spi.HostAddress; +import io.trino.spi.connector.ConnectorSplit; + +import java.util.List; + +public class ExampleSplit + implements ConnectorSplit +{ + private final ExampleTableHandle tableHandle; + private final List addresses; + + @JsonCreator + public ExampleSplit( + @JsonProperty("tableHandle") ExampleTableHandle tableHandle, + @JsonProperty("addresses") List addresses) + { + this.tableHandle = tableHandle; + this.addresses = addresses; + } + + @Override + public boolean isRemotelyAccessible() + { + return true; + } + + @Override + @JsonProperty("addresses") + public List getAddresses() + { + return List.of(); + } + + @Override + public Object getInfo() + { + return "Example split"; + } + + @JsonProperty("tableHandle") + public ExampleTableHandle getTableHandle() + { + return tableHandle; + } +} diff --git a/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleSplitManager.java b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleSplitManager.java new file mode 100644 index 000000000000..d392e4cc2c0f --- /dev/null +++ b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleSplitManager.java @@ -0,0 +1,61 @@ +/* + * Licensed 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 io.trino.plugin.example; + +import com.google.common.collect.ImmutableList; +import com.google.inject.Inject; +import io.trino.spi.HostAddress; +import io.trino.spi.Node; +import io.trino.spi.NodeManager; +import io.trino.spi.connector.ConnectorSession; +import io.trino.spi.connector.ConnectorSplitManager; +import io.trino.spi.connector.ConnectorSplitSource; +import io.trino.spi.connector.ConnectorTableHandle; +import io.trino.spi.connector.ConnectorTransactionHandle; +import io.trino.spi.connector.Constraint; +import io.trino.spi.connector.DynamicFilter; +import io.trino.spi.connector.FixedSplitSource; + +import java.util.List; + +import static java.util.stream.Collectors.toList; + +public class ExampleSplitManager + implements ConnectorSplitManager +{ + private final NodeManager nodeManager; + + @Inject + public ExampleSplitManager(NodeManager nodeManager) + { + this.nodeManager = nodeManager; + } + + @Override + public ConnectorSplitSource getSplits( + ConnectorTransactionHandle transaction, + ConnectorSession session, + ConnectorTableHandle table, + DynamicFilter dynamicFilter, + Constraint constraint) + { + List addresses = nodeManager.getRequiredWorkerNodes().stream() + .map(Node::getHostAndPort) + .collect(toList()); + + return new FixedSplitSource(ImmutableList.of( + new ExampleSplit((ExampleTableHandle) table, addresses))); + } +} diff --git a/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleTableHandle.java b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleTableHandle.java new file mode 100644 index 000000000000..4f4b9f252126 --- /dev/null +++ b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleTableHandle.java @@ -0,0 +1,44 @@ +/* + * Licensed 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 io.trino.plugin.example; + +import com.fasterxml.jackson.annotation.JsonCreator; +import com.fasterxml.jackson.annotation.JsonProperty; +import io.trino.spi.connector.ConnectorTableHandle; +import io.trino.spi.connector.SchemaTableName; + +public class ExampleTableHandle + implements ConnectorTableHandle +{ + private final SchemaTableName schemaTableName; + + @JsonCreator + public ExampleTableHandle(SchemaTableName schemaTableName) + { + this.schemaTableName = schemaTableName; + } + + @JsonProperty + public SchemaTableName getSchemaTableName() + { + return schemaTableName; + } + + @Override + public String toString() + { + return schemaTableName.getTableName(); + } +} diff --git a/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleTransactionHandle.java b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleTransactionHandle.java new file mode 100644 index 000000000000..2909a7ace4b5 --- /dev/null +++ b/plugin/trino-example-plugin/src/main/java/io/trino/plugin/example/ExampleTransactionHandle.java @@ -0,0 +1,23 @@ +/* + * Licensed 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 io.trino.plugin.example; + +import io.trino.spi.connector.ConnectorTransactionHandle; + +public enum ExampleTransactionHandle + implements ConnectorTransactionHandle +{ + INSTANCE +} diff --git a/plugin/trino-example-plugin/src/test/java/io/trino/plugin/example/ExampleQueryRunner.java b/plugin/trino-example-plugin/src/test/java/io/trino/plugin/example/ExampleQueryRunner.java new file mode 100644 index 000000000000..8cf75c235036 --- /dev/null +++ b/plugin/trino-example-plugin/src/test/java/io/trino/plugin/example/ExampleQueryRunner.java @@ -0,0 +1,71 @@ +/* + * Licensed 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 io.trino.plugin.example; + +import com.google.common.collect.ImmutableMap; +import io.airlift.log.Level; +import io.airlift.log.Logger; +import io.airlift.log.Logging; +import io.trino.Session; +import io.trino.testing.DistributedQueryRunner; +import io.trino.testing.QueryRunner; + +import java.util.Map; + +import static io.trino.testing.TestingSession.testSessionBuilder; + +public class ExampleQueryRunner +{ + private ExampleQueryRunner() {} + + public static QueryRunner createQueryRunner() + throws Exception + { + Session defaultSession = testSessionBuilder() + .setCatalog("example") + .setSchema("default") + .build(); + + Map extraProperties = ImmutableMap.builder() + .put("http-server.http.port", "8080") + .build(); + QueryRunner queryRunner = DistributedQueryRunner.builder(defaultSession) + .setExtraProperties(extraProperties) + .setNodeCount(1) + .build(); + queryRunner.installPlugin(new ExamplePlugin()); + + queryRunner.createCatalog( + "example", + "example_connector", + Map.of()); + + return queryRunner; + } + + public static void main(String[] args) + throws Exception + { + Logging logger = Logging.initialize(); + logger.setLevel("io.trino.plugin.example", Level.DEBUG); + logger.setLevel("io.trino", Level.INFO); + + QueryRunner queryRunner = createQueryRunner(); + + Logger log = Logger.get(ExampleQueryRunner.class); + log.info("======== SERVER STARTED ========"); + log.info("\n====\n%s\n====", ((DistributedQueryRunner) queryRunner).getCoordinator().getBaseUrl()); + } +} diff --git a/plugin/trino-example-plugin/src/test/java/io/trino/plugin/example/TestExampleQueries.java b/plugin/trino-example-plugin/src/test/java/io/trino/plugin/example/TestExampleQueries.java new file mode 100644 index 000000000000..a48cd4114df2 --- /dev/null +++ b/plugin/trino-example-plugin/src/test/java/io/trino/plugin/example/TestExampleQueries.java @@ -0,0 +1,44 @@ +/* + * Licensed 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 io.trino.plugin.example; + +import io.trino.testing.AbstractTestQueryFramework; +import io.trino.testing.QueryRunner; +import org.junit.jupiter.api.Test; + +public class TestExampleQueries + extends AbstractTestQueryFramework +{ + @Override + protected QueryRunner createQueryRunner() + throws Exception + { + return ExampleQueryRunner.createQueryRunner(); + } + + @Test + public void showTables() + { + assertQuery("SHOW SCHEMAS FROM example", "VALUES 'default', 'information_schema'"); + assertQuery("SHOW TABLES FROM example.default", "VALUES 'single_row'"); + } + + @Test + public void selectFromTable() + { + assertQuery("SELECT name FROM single_row WHERE id = 'x'", + "VALUES ('my-name')"); + } +} diff --git a/plugin/trino-plugin-archetype-builder/.gitignore b/plugin/trino-plugin-archetype-builder/.gitignore new file mode 100644 index 000000000000..0e13eebbeaad --- /dev/null +++ b/plugin/trino-plugin-archetype-builder/.gitignore @@ -0,0 +1,11 @@ +target/ +pom.xml.tag +pom.xml.releaseBackup +pom.xml.versionsBackup +pom.xml.next +release.properties +dependency-reduced-pom.xml +buildNumber.properties +.mvn/timing.properties +# https://github.com/takari/maven-wrapper#usage-without-binary-jar +.mvn/wrapper/maven-wrapper.jar diff --git a/plugin/trino-plugin-archetype-builder/archetype.properties b/plugin/trino-plugin-archetype-builder/archetype.properties new file mode 100644 index 000000000000..828b7852ad71 --- /dev/null +++ b/plugin/trino-plugin-archetype-builder/archetype.properties @@ -0,0 +1,3 @@ +excludePatterns=*.iml,interpolated-pom.xml,build.log +connectorName=example_connector +classPrefix=Example diff --git a/plugin/trino-plugin-archetype-builder/pom.xml b/plugin/trino-plugin-archetype-builder/pom.xml new file mode 100644 index 000000000000..79843d06d683 --- /dev/null +++ b/plugin/trino-plugin-archetype-builder/pom.xml @@ -0,0 +1,162 @@ + + + 4.0.0 + + + io.trino + trino-root + 440-SNAPSHOT + ../../pom.xml + + + trino-plugin-archetype-builder + pom + Trino - Maven Archetype Builder for Trino Plugins + + + ${project.parent.basedir} + UTF-8 + + + + + io.trino + trino-example-plugin + 0.1-SNAPSHOT + + + + + + + maven-resources-plugin + + + copy-sources + + copy-resources + + generate-sources + + ${project.build.directory}/trino-example-plugin + + + ${project.basedir}/../trino-example-plugin + + **/*.iml + target + + false + + + + + + overwrite-generated-meta + + + copy-resources + + process-sources + + ${project.build.directory}/trino-example-plugin/target/generated-sources/archetype/src/main/resources/META-INF/maven + true + + + ${project.basedir}/src/main/resources/META-INF/maven + false + + + + + + overwrite-generated-pom + + + copy-resources + + process-sources + + ${project.build.directory}/trino-example-plugin/target/generated-sources/archetype + true + + + ${project.basedir}/src/main/resources + true + + pom.xml + + + + + + + + + maven-invoker-plugin + 3.3.0 + + + pom.xml + + ${project.build.directory}/trino-example-plugin/target/generated-sources/archetype + false + true + + + + generate-archetype + + run + + generate-sources + + ${project.build.directory}/trino-example-plugin + + + org.apache.maven.plugins:maven-archetype-plugin:3.2.1:create-from-project -Darchetype.properties=${project.basedir}/archetype.properties -Darchetype.postPhase=validate + + + + + package-archetype + + run + + package + + + + package -Dgib.disable + + + + + install-archetype + + run + + install + + + install -Dgib.disable + + + + + deploy-archetype + + run + + deploy + + + deploy -Dgib.disable + + + + + + + + diff --git a/plugin/trino-plugin-archetype-builder/src/main/resources/META-INF/maven/archetype-metadata.xml b/plugin/trino-plugin-archetype-builder/src/main/resources/META-INF/maven/archetype-metadata.xml new file mode 100644 index 000000000000..b0ce8d909351 --- /dev/null +++ b/plugin/trino-plugin-archetype-builder/src/main/resources/META-INF/maven/archetype-metadata.xml @@ -0,0 +1,31 @@ + + + + + + + + + + + .gitignore + + + + + + + README.md + LICENSE + + + + src/main/java + + + src/test/java + + + diff --git a/plugin/trino-plugin-archetype-builder/src/main/resources/pom.xml b/plugin/trino-plugin-archetype-builder/src/main/resources/pom.xml new file mode 100644 index 000000000000..97608c76895d --- /dev/null +++ b/plugin/trino-plugin-archetype-builder/src/main/resources/pom.xml @@ -0,0 +1,46 @@ + + + 4.0.0 + + + io.trino + trino-root + ${project.version} + + ../../../../../../../pom.xml + + + trino-plugin-archetype + maven-archetype + Trino - Maven Archetype for Trino Plugins + + + ${project.parent.basedir} + + + + + + + org.apache.maven.plugins + maven-archetype-plugin + 3.2.1 + + + + + + org.apache.maven.plugins + maven-archetype-plugin + 3.2.1 + + + + + org.apache.maven.archetype + archetype-packaging + 3.2.1 + + + + diff --git a/plugin/trino-plugin-archetype-builder/src/test/resources/projects/basic/archetype.properties b/plugin/trino-plugin-archetype-builder/src/test/resources/projects/basic/archetype.properties new file mode 100644 index 000000000000..a6368b9c4673 --- /dev/null +++ b/plugin/trino-plugin-archetype-builder/src/test/resources/projects/basic/archetype.properties @@ -0,0 +1,7 @@ +package=it.pkg +groupId=com.it +artifactId=basic +version=0.1-SNAPSHOT +keepParent=false +connectorName=example_connector +classPrefix=Example diff --git a/plugin/trino-plugin-archetype-builder/src/test/resources/projects/basic/goal.txt b/plugin/trino-plugin-archetype-builder/src/test/resources/projects/basic/goal.txt new file mode 100644 index 000000000000..0b5987362fe3 --- /dev/null +++ b/plugin/trino-plugin-archetype-builder/src/test/resources/projects/basic/goal.txt @@ -0,0 +1 @@ +verify diff --git a/pom.xml b/pom.xml index f8a83363d4c9..3ede0b5e467e 100644 --- a/pom.xml +++ b/pom.xml @@ -71,6 +71,7 @@ plugin/trino-elasticsearch plugin/trino-example-http plugin/trino-example-jdbc + plugin/trino-example-plugin plugin/trino-exchange-filesystem plugin/trino-exchange-hdfs plugin/trino-geospatial @@ -97,6 +98,7 @@ plugin/trino-password-authenticators plugin/trino-phoenix5 plugin/trino-pinot + plugin/trino-plugin-archetype-builder plugin/trino-postgresql plugin/trino-prometheus plugin/trino-raptor-legacy