feat: Init logger, add initial MemDB plugin (#70)

Beginning of #5.

Started implementing a MemDB plugin, but other things got in the way:

1. Dropped the plugin builder as it makes it harder to extend it (I found https://projectlombok.org/features/experimental/SuperBuilder but didn't dig deeper)
2. Looks like we shouldn't throw in the serve command so the caller can use the return value and do `System.exit(exitCode)`
3. Removed the docs command as now the CLI does it
4. Initialized the logger via code using `log4j2` (couldn't find an easier way to support JSON logging)

Author: erezrokah

lib/bin/main/io/cloudquery/glob/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Ryan Uber
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

lib/bin/main/io/cloudquery/glob/README.md

@@ -0,0 +1,3 @@
+# Glob Matching Library
+
+This glob-matching library was copied from [ryanuber/go-glob](https://github.com/ryanuber/go-glob) and therefore falls under its [license](LICENSE).

lib/build.gradle

@@ -1,6 +1,6 @@
 plugins {
     id 'java-library'
-    id "io.freefair.lombok" version "8.1.0"
+    id "io.freefair.lombok" version "8.2.2"
     id "maven-publish"
 }
 
@@ -36,6 +36,9 @@ dependencies {
     implementation "io.cloudquery:plugin-pb-java:0.0.5"
     implementation "org.apache.arrow:arrow-vector:12.0.1"
 
+    implementation 'org.apache.logging.log4j:log4j-api:2.20.0'
+    implementation 'org.apache.logging.log4j:log4j-core:2.20.0'
+
     testImplementation(platform('org.junit:junit-bom:5.10.0'))
     testImplementation('org.junit.jupiter:junit-jupiter:5.10.0')
     testImplementation('org.junit.jupiter:junit-jupiter-api:5.10.0')

lib/src/main/java/io/cloudquery/Main.java

@@ -0,0 +1,12 @@
+package io.cloudquery;
+
+import io.cloudquery.memdb.MemDB;
+import io.cloudquery.server.PluginServe;
+
+public class Main {
+    public static void main(String[] args) {
+        PluginServe serve = PluginServe.builder().plugin(new MemDB()).args(args).build();
+        int exitCode = serve.Serve();
+        System.exit(exitCode);
+    }
+}

lib/src/main/java/io/cloudquery/memdb/MemDB.java

@@ -0,0 +1,9 @@
+package io.cloudquery.memdb;
+
+import io.cloudquery.plugin.Plugin;
+
+public class MemDB extends Plugin {
+    public MemDB() {
+        super("memdb", "0.0.1");
+    }
+}

lib/src/main/java/io/cloudquery/plugin/Plugin.java

@@ -1,18 +1,14 @@
 package io.cloudquery.plugin;
 
-import lombok.Builder;
+import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NonNull;
 
-@Builder(builderMethodName = "innerBuilder")
 @Getter
-public class Plugin {
-    public static PluginBuilder builder(String name, String version) {
-        return innerBuilder().name(name).verion(version);
-    }
-
+@AllArgsConstructor
+public abstract class Plugin {
     @NonNull
-    private final String name;
+    protected final String name;
     @NonNull
-    private final String verion;
+    protected final String version;
 }

lib/src/main/java/io/cloudquery/scheduler/Scheduler.java

@@ -0,0 +1,6 @@
+package io.cloudquery.scheduler;
+
+public class Scheduler {
+    public Scheduler() {
+    }
+}

lib/src/main/java/io/cloudquery/server/DocCommand.java

@@ -6,28 +6,14 @@
 import lombok.NonNull;
 import picocli.CommandLine;
 
-import java.util.ArrayList;
-import java.util.List;
-
 @Builder(access = AccessLevel.PUBLIC)
 public class PluginServe {
     @NonNull
     private final Plugin plugin;
     @Builder.Default
-    private List<String> args = new ArrayList<>();
-    private boolean destinationV0V1Server;
-    private String sentryDSN;
-    private boolean testListener;
-    //TODO: Allow a test listener to be passed in
-    // 	testListenerConn      *bufconn.Listener
+    private String[] args = new String[] {};
 
-    public void Serve() throws ServerException {
-        int exitStatus = new CommandLine(new RootCommand()).
-                addSubcommand("serve", new ServeCommand(plugin)).
-                addSubcommand("doc", new DocCommand()).
-                execute(args.toArray(new String[]{}));
-        if (exitStatus != 0) {
-            throw new ServerException("error processing command line exit status = "+exitStatus);
-        }
+    public int Serve() {
+        return new CommandLine(new RootCommand()).addSubcommand(new ServeCommand(plugin)).execute(args);
     }
 }

lib/src/main/java/io/cloudquery/server/PluginServe.java

@@ -4,4 +4,4 @@
 
 @CommandLine.Command
 public class RootCommand {
-}
+}