Baseline for a Java generator from CRD

java-generator/README.md

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+# Java generator (early preview release)
+
+## Disclaimer
+
+This is an early preview of a Java generator from CRD and
+there might still be issues in the generated sources.
+Please give it a try and report any issue you might find.
+
+### Usage
+
+The `java-generator` is distributed as a tiny CLI application, you can obtain it by running:
+
+```
+mvn clean package -f cli/pom.xml
+```
+
+The produced executable will be `cli/target/java-gen` and it provides basic configuration options:
+
+```bash
+Usage: java-gen [-hV] -crd=<crdFile> -dest=<destFolder>
+      -crd, --custom-resource-definition=<crdFile>
+                  The file with the CustomResourceDefinition to use
+      -dest, --destination-folder=<destFolder>
+                  The folder to write the generated sources
+  -h, --help      Show this help message and exit.
+  -V, --version   Print version information and exit.
+```
+
+### Formatting code
+
+Code formatting is automated but remember to fix the headers before committing:
+
+```bash
+mvn license:format -f java-generator/pom.xml
+```

java-generator/cli/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Copyright (C) 2015 Red Hat, Inc.
+
+    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.
+
+-->
+<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">
+  <parent>
+    <artifactId>java-generator-parent</artifactId>
+    <groupId>io.fabric8</groupId>
+    <version>6.0-SNAPSHOT</version>
+  </parent>
+  <modelVersion>4.0.0</modelVersion>
+
+  <artifactId>java-generator-cli</artifactId>
+  <name>Fabric8 :: Java generator :: CLI</name>
+
+  <properties>
+    <picocli.version>4.6.2</picocli.version>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>io.fabric8</groupId>
+      <artifactId>java-generator-core</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+
+    <dependency>
+      <groupId>info.picocli</groupId>
+      <artifactId>picocli</artifactId>
+      <version>${picocli.version}</version>
+    </dependency>
+
+    <dependency>
+      <groupId>io.fabric8</groupId>
+      <artifactId>kubernetes-client</artifactId>
+    </dependency>
+
+    <dependency>
+      <groupId>io.fabric8</groupId>
+      <artifactId>kubernetes-model-common</artifactId>
+    </dependency>
+
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-simple</artifactId>
+      <version>${slf4j.version}</version>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <configuration>
+          <annotationProcessorPaths>
+            <path>
+              <groupId>info.picocli</groupId>
+              <artifactId>picocli-codegen</artifactId>
+              <version>${picocli.version}</version>
+            </path>
+          </annotationProcessorPaths>
+          <compilerArgs>
+            <arg>-Aproject=${project.groupId}/${project.artifactId}</arg>
+          </compilerArgs>
+        </configuration>
+      </plugin>
+
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-shade-plugin</artifactId>
+        <version>2.0</version>
+        <executions>
+            <execution>
+                <phase>package</phase>
+                <goals>
+                    <goal>shade</goal>
+                </goals>
+                <configuration>
+                    <transformers>
+                        <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
+                        <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                            <mainClass>io.fabric8.java.generator.cli.GenerateJavaSources</mainClass>
+                        </transformer>
+                    </transformers>
+                    <createDependencyReducedPom>false</createDependencyReducedPom>
+                    <filters>
+                        <filter>
+                            <artifact>*:*</artifact>
+                            <excludes>
+                                <exclude>META-INF/*.SF</exclude>
+                                <exclude>META-INF/*.DSA</exclude>
+                                <exclude>META-INF/*.RSA</exclude>
+                            </excludes>
+                        </filter>
+                    </filters>
+                </configuration>
+            </execution>
+        </executions>
+    </plugin>
+
+    <!-- now make the jar chmod +x style executable -->
+    <plugin>
+        <groupId>org.skife.maven</groupId>
+        <artifactId>really-executable-jar-maven-plugin</artifactId>
+        <version>1.4.1</version>
+        <configuration>
+            <flags>-Xmx1G</flags>
+            <programFile>java-gen</programFile>
+        </configuration>
+
+        <executions>
+            <execution>
+                <phase>package</phase>
+                <goals>
+                    <goal>really-executable-jar</goal>
+                </goals>
+            </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>

java-generator/cli/src/main/java/io/fabric8/java/generator/cli/GenerateJavaSources.java

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+/**
+ * Copyright (C) 2015 Red Hat, Inc.
+ *
+ * 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.fabric8.java.generator.cli;
+
+import io.fabric8.java.generator.CRGeneratorRunner;
+import java.io.File;
+import picocli.CommandLine;
+import picocli.CommandLine.Command;
+import picocli.CommandLine.Option;
+
+@Command(
+        name = "java-gen",
+        mixinStandardHelpOptions = true,
+        helpCommand = true,
+        versionProvider = KubernetesClientVersionProvider.class)
+public class GenerateJavaSources implements Runnable {
+
+    @Option(
+            names = {"-crd", "--custom-resource-definition"},
+            description = "The file with the CustomResourceDefinition to use",
+            required = true)
+    File crdFile;
+
+    @Option(
+            names = {"-dest", "--destination-folder"},
+            description = "The folder to write the generated sources",
+            required = true)
+    File destFolder;
+
+    @Override
+    public void run() {
+        CRGeneratorRunner runner = new CRGeneratorRunner();
+        runner.run(crdFile, destFolder);
+    }
+
+    public static void main(String[] args) {
+        int exitCode = new CommandLine(new GenerateJavaSources()).execute(args);
+        System.exit(exitCode);
+    }
+}

java-generator/cli/src/main/java/io/fabric8/java/generator/cli/KubernetesClientVersionProvider.java

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+/**
+ * Copyright (C) 2015 Red Hat, Inc.
+ *
+ * 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.fabric8.java.generator.cli;
+
+import io.fabric8.kubernetes.client.Version;
+import picocli.CommandLine;
+
+public class KubernetesClientVersionProvider implements CommandLine.IVersionProvider {
+    @Override
+    public String[] getVersion() throws Exception {
+        return new String[] {Version.clientVersion()};
+    }
+}

java-generator/core/.gitignore

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+*.received.txt

java-generator/core/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Copyright (C) 2015 Red Hat, Inc.
+
+    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.
+
+-->
+<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">
+  <parent>
+    <artifactId>java-generator-parent</artifactId>
+    <groupId>io.fabric8</groupId>
+    <version>6.0-SNAPSHOT</version>
+  </parent>
+  <modelVersion>4.0.0</modelVersion>
+
+  <artifactId>java-generator-core</artifactId>
+  <name>Fabric8 :: Java generator :: Core</name>
+
+  <dependencies>
+    <dependency>
+      <groupId>io.fabric8</groupId>
+      <artifactId>kubernetes-client</artifactId>
+      <scope>compile</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>io.fabric8</groupId>
+      <artifactId>kubernetes-model-common</artifactId>
+    </dependency>
+
+    <dependency>
+      <groupId>com.github.javaparser</groupId>
+      <artifactId>javaparser-core</artifactId>
+      <version>3.23.1</version>
+    </dependency>
+
+    <dependency>
+      <groupId>io.sundr</groupId>
+      <artifactId>sundr-adapter-reflect</artifactId>
+      <version>${sundrio.version}</version>
+      <scope>compile</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>io.sundr</groupId>
+      <artifactId>builder-annotations</artifactId>
+      <version>${sundrio.version}</version>
+      <scope>compile</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>org.projectlombok</groupId>
+      <artifactId>lombok</artifactId>
+      <scope>provided</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>javax.validation</groupId>
+      <artifactId>validation-api</artifactId>
+      <scope>provided</scope>
+    </dependency>
+
+    <!-- Testing -->
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-api</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-simple</artifactId>
+      <version>${slf4j.version}</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.testing.compile</groupId>
+      <artifactId>compile-testing</artifactId>
+      <version>0.19</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.approvaltests</groupId>
+      <artifactId>approvaltests</artifactId>
+      <version>12.3.2</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <configuration>
+            <compilerArgument>-proc:none</compilerArgument>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+</project>