feat: Add CLP connector

pom.xml

@@ -212,6 +212,7 @@
         <module>presto-native-sidecar-plugin</module>
         <module>presto-base-arrow-flight</module>
         <module>presto-function-server</module>
+        <module>presto-clp</module>
     </modules>
 
     <dependencyManagement>
@@ -761,6 +762,12 @@
                 <version>${project.version}</version>
             </dependency>
 
+            <dependency>
+                <groupId>com.yscope.presto</groupId>
+                <artifactId>presto-clp</artifactId>
+                <version>${project.version}</version>
+            </dependency>
+
             <dependency>
                 <groupId>com.facebook.presto</groupId>
                 <artifactId>presto-expressions</artifactId>

presto-clp/pom.xml

@@ -0,0 +1,135 @@
+<?xml version="1.0"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>com.facebook.presto</groupId>
+        <artifactId>presto-root</artifactId>
+        <version>0.292-SNAPSHOT</version>
+    </parent>
+
+    <groupId>com.yscope.presto</groupId>
+    <artifactId>presto-clp</artifactId>
+    <description>Presto - CLP Connector</description>
+    <packaging>presto-plugin</packaging>
+
+    <properties>
+        <air.main.basedir>${project.parent.basedir}</air.main.basedir>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>com.facebook.airlift</groupId>
+            <artifactId>bootstrap</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.facebook.airlift</groupId>
+            <artifactId>json</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.facebook.airlift</groupId>
+            <artifactId>log</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.facebook.airlift</groupId>
+            <artifactId>configuration</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.google.inject</groupId>
+            <artifactId>guice</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.google.code.findbugs</groupId>
+            <artifactId>jsr305</artifactId>
+            <optional>true</optional>
+        </dependency>
+
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>javax.inject</groupId>
+            <artifactId>javax.inject</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-annotations</artifactId>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>com.facebook.presto</groupId>
+            <artifactId>presto-spi</artifactId>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>com.facebook.presto</groupId>
+            <artifactId>presto-common</artifactId>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>io.airlift</groupId>
+            <artifactId>units</artifactId>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>io.airlift</groupId>
+            <artifactId>slice</artifactId>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.testng</groupId>
+            <artifactId>testng</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>com.facebook.presto</groupId>
+            <artifactId>presto-main</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>com.facebook.presto</groupId>
+            <artifactId>presto-analyzer</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>com.facebook.presto</groupId>
+            <artifactId>presto-parser</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-math3</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>

presto-clp/src/main/java/com/yscope/presto/ClpColumnHandle.java

@@ -0,0 +1,114 @@
+/*
+ * 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 com.yscope.presto;
+
+import com.facebook.presto.common.type.Type;
+import com.facebook.presto.spi.ColumnHandle;
+import com.facebook.presto.spi.ColumnMetadata;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+import java.util.Objects;
+
+import static com.google.common.base.MoreObjects.toStringHelper;
+
+public class ClpColumnHandle
+        implements ColumnHandle
+{
+    private final String columnName;
+    private final String originalColumnName;
+    private final Type columnType;
+    private final boolean nullable;
+
+    @JsonCreator
+    public ClpColumnHandle(
+            @JsonProperty("columnName") String columnName,
+            @JsonProperty("originalColumnName") String originalColumnName,
+            @JsonProperty("columnType") Type columnType,
+            @JsonProperty("nullable") boolean nullable)
+    {
+        this.columnName = columnName;
+        this.originalColumnName = originalColumnName;
+        this.columnType = columnType;
+        this.nullable = nullable;
+    }
+
+    public ClpColumnHandle(String columnName, Type columnType, boolean nullable)
+    {
+        this(columnName, columnName, columnType, nullable);
+    }
+
+    @JsonProperty
+    public String getColumnName()
+    {
+        return columnName;
+    }
+
+    @JsonProperty
+    public String getOriginalColumnName()
+    {
+        return originalColumnName;
+    }
+
+    @JsonProperty
+    public Type getColumnType()
+    {
+        return columnType;
+    }
+
+    @JsonProperty
+    public boolean isNullable()
+    {
+        return nullable;
+    }
+
+    public ColumnMetadata getColumnMetadata()
+    {
+        ColumnMetadata.Builder builder = ColumnMetadata.builder()
+                .setName(columnName)
+                .setType(columnType)
+                .setNullable(nullable);
+        return builder.build();
+    }
+
+    @Override
+    public int hashCode()
+    {
+        return Objects.hash(columnName, columnType);
+    }
+
+    @Override
+    public boolean equals(Object obj)
+    {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        ClpColumnHandle other = (ClpColumnHandle) obj;
+        return Objects.equals(this.columnName, other.columnName) &&
+                Objects.equals(this.columnType, other.columnType);
+    }
+
+    @Override
+    public String toString()
+    {
+        return toStringHelper(this)
+                .add("columnName", columnName)
+                .add("columnType", columnType)
+                .add("nullable", nullable)
+                .toString();
+    }
+}