fix: adds an additional printer column annotation

CHANGELOG.md

@@ -7,6 +7,7 @@
 * Fix #6214: Java generator does not recognize fields in CRDs other than metadata, spec, and status
 
 #### Improvements
+* Fix #3069: added AdditionalPrinterColumn type annotation to completely specify additional printer columns
 * Fix #5264: Remove deprecated `Config.errorMessages` field
 * Fix #6008: removing the optional dependency on bouncy castle
 * Fix #6407: sundrio builder-annotations is not available via bom import

crd-generator/api-v2/src/main/java/io/fabric8/crdv2/generator/AbstractCustomResourceHandler.java

@@ -15,6 +15,8 @@
  */
 package io.fabric8.crdv2.generator;
 
+import io.fabric8.crd.generator.annotation.AdditionalPrinterColumn;
+import io.fabric8.crd.generator.annotation.AdditionalPrinterColumn.Format;
 import io.fabric8.crd.generator.annotation.PrinterColumn;
 import io.fabric8.crdv2.generator.AbstractJsonSchema.AnnotationMetadata;
 import io.fabric8.kubernetes.api.model.HasMetadata;
@@ -44,29 +46,35 @@ void addPrinterColumn(String path, String column, String format,
 
   protected void handlePrinterColumns(AbstractJsonSchema<?, ?> resolver, PrinterColumnHandler handler) {
     TreeMap<String, AnnotationMetadata> sortedCols = new TreeMap<>(String.CASE_INSENSITIVE_ORDER);
+    resolver.getAdditionalPrinterColumns().forEach(apc -> sortedCols.put(apc.jsonPath(), new AnnotationMetadata(apc, null)));
     sortedCols.putAll(resolver.getAllPaths(PrinterColumn.class));
     sortedCols.forEach((path, property) -> {
-      PrinterColumn printerColumn = ((PrinterColumn) property.annotation);
-      String column = printerColumn.name();
-      if (Utils.isNullOrEmpty(column)) {
-        column = path.substring(path.lastIndexOf(".") + 1).toUpperCase();
-      }
-      String format = printerColumn.format();
-      format = Utils.isNotNullOrEmpty(format) ? format : null;
-      int priority = printerColumn.priority();
-      String type = property.schema.getType();
-      if ("object".equals(type) || "array".equals(type)) {
-        LOGGER.warn("Printer column '{}' has a type '{}' that is not allowed, will use string intead", column, type);
-        type = "string";
-      } else if ("string".equals(type) && "date".equals(property.schema.getFormat())) {
-        type = "date";
-      }
+      if (property.annotation instanceof AdditionalPrinterColumn) {
+        AdditionalPrinterColumn printerColumn = ((AdditionalPrinterColumn) property.annotation);
+        String column = printerColumn.name();
+        String format = printerColumn.format() == Format.NONE ? null : printerColumn.format().getValue();
+        String type = printerColumn.type().getValue();
+        int priority = printerColumn.priority();
+        String description = printerColumn.getDescription();
+        handler.addPrinterColumn(path, column, format, priority, type, description);
+      } else {
+        PrinterColumn printerColumn = ((PrinterColumn) property.annotation);
+        String column = printerColumn.name();
+        String format = printerColumn.format();
+        format = Utils.isNotNullOrEmpty(format) ? format : null;
+        String type = property.schema.getType();
+        if ("object".equals(type) || "array".equals(type)) {
+          LOGGER.warn("Printer column '{}' has a type '{}' that is not allowed, will use string intead", column, type);
+          type = "string";
+        } else if ("string".equals(type) && "date".equals(property.schema.getFormat())) {
+          type = "date";
+        }
+        int priority = printerColumn.priority();
 
-      // TODO: add description to the annotation? The previous logic considered the comments, which are not available here
-      String description = property.schema.getDescription();
-      description = Utils.isNotNullOrEmpty(description) ? description : null;
-
-      handler.addPrinterColumn(path, column, format, priority, type, description);
+        // TODO: add description to the annotation? The previous logic considered the comments, which are not available here
+        String description = property.schema.getDescription();
+        handler.addPrinterColumn(path, column, format, priority, type, description);
+      }
     });
   }
 

crd-generator/api-v2/src/main/java/io/fabric8/crdv2/generator/AbstractJsonSchema.java

@@ -28,6 +28,7 @@
 import com.fasterxml.jackson.module.jsonSchema.types.ReferenceSchema;
 import com.fasterxml.jackson.module.jsonSchema.types.StringSchema;
 import com.fasterxml.jackson.module.jsonSchema.types.ValueTypeSchema;
+import io.fabric8.crd.generator.annotation.AdditionalPrinterColumn;
 import io.fabric8.crd.generator.annotation.PreserveUnknownFields;
 import io.fabric8.crd.generator.annotation.PrinterColumn;
 import io.fabric8.crd.generator.annotation.SchemaFrom;
@@ -93,6 +94,7 @@ public abstract class AbstractJsonSchema<T extends KubernetesJSONSchemaProps, V
   private ResolvingContext resolvingContext;
   private T root;
   private Set<String> dependentClasses = new HashSet<>();
+  private Set<AdditionalPrinterColumn> additionalPrinterColumns = new HashSet<>();
 
   public static class AnnotationMetadata {
     public final Annotation annotation;
@@ -141,6 +143,8 @@ public Map<String, AnnotationMetadata> getAllPaths(Class<PrinterColumn> clazz) {
   private T resolveRoot(Class<?> definition) {
     InternalSchemaSwaps schemaSwaps = new InternalSchemaSwaps();
     JsonSchema schema = resolvingContext.toJsonSchema(definition);
+    consumeRepeatingAnnotation(definition, AdditionalPrinterColumn.class,
+        additionalPrinterColumns::add);
     if (schema instanceof GeneratorObjectSchema) {
       return resolveObject(new LinkedHashMap<>(), schemaSwaps, schema, "kind", "apiVersion", "metadata");
     }
@@ -598,4 +602,8 @@ private static String mapNotEmpty(String s) {
 
   protected abstract T raw();
 
+  public Set<AdditionalPrinterColumn> getAdditionalPrinterColumns() {
+    return additionalPrinterColumns;
+  }
+
 }

crd-generator/api-v2/src/main/java/io/fabric8/crdv2/generator/v1/CustomResourceHandler.java

@@ -69,6 +69,11 @@ public void handle(CustomResourceInfo config, ResolvingContext resolvingContext)
     handlePrinterColumns(resolver, new PrinterColumnHandler() {
       @Override
       public void addPrinterColumn(String path, String column, String format, int priority, String type, String description) {
+        if (Utils.isNullOrEmpty(column)) {
+          column = path.substring(path.lastIndexOf(".") + 1).toUpperCase();
+        }
+        description = Utils.isNotNullOrEmpty(description) ? description : null;
+
         builder.addNewAdditionalPrinterColumn()
             .withType(type)
             .withName(column)

crd-generator/api-v2/src/test/java/io/fabric8/crdv2/example/joke/JokeRequest.java

@@ -15,6 +15,8 @@
  */
 package io.fabric8.crdv2.example.joke;
 
+import io.fabric8.crd.generator.annotation.AdditionalPrinterColumn;
+import io.fabric8.crd.generator.annotation.AdditionalPrinterColumn.Type;
 import io.fabric8.kubernetes.api.model.Namespaced;
 import io.fabric8.kubernetes.client.CustomResource;
 import io.fabric8.kubernetes.model.annotation.Group;
@@ -24,6 +26,7 @@
 @Group("samples.javaoperatorsdk.io")
 @Version("v1alpha1")
 @ShortNames("jr")
+@AdditionalPrinterColumn(name = "Age", jsonPath = ".metadata.creationTimestamp", type = Type.DATE)
 public class JokeRequest extends CustomResource<JokeRequestSpec, JokeRequestStatus> implements Namespaced {
 
 }

crd-generator/api-v2/src/test/java/io/fabric8/crdv2/generator/CRDGeneratorTest.java

@@ -387,18 +387,23 @@ void jokerequestCRDShouldWork() {
       // printer columns should be ordered in the alphabetical order of their json path
       final List<CustomResourceColumnDefinition> printerColumns = version
           .getAdditionalPrinterColumns();
-      assertEquals(3, printerColumns.size());
+      assertEquals(4, printerColumns.size());
       CustomResourceColumnDefinition columnDefinition = printerColumns.get(0);
+      assertEquals("date", columnDefinition.getType());
+      assertEquals(".metadata.creationTimestamp", columnDefinition.getJsonPath());
+      assertEquals("Age", columnDefinition.getName());
+      assertEquals(0, columnDefinition.getPriority());
+      columnDefinition = printerColumns.get(1);
       assertEquals("string", columnDefinition.getType());
       assertEquals(".spec.category", columnDefinition.getJsonPath());
       assertEquals("jokeCategory", columnDefinition.getName());
       assertEquals(1, columnDefinition.getPriority());
-      columnDefinition = printerColumns.get(1);
+      columnDefinition = printerColumns.get(2);
       assertEquals("string", columnDefinition.getType());
       assertEquals(".spec.excluded", columnDefinition.getJsonPath());
       assertEquals("excludedTopics", columnDefinition.getName());
       assertEquals(0, columnDefinition.getPriority());
-      columnDefinition = printerColumns.get(2);
+      columnDefinition = printerColumns.get(3);
       assertEquals("string", columnDefinition.getType());
       assertEquals(".status.category", columnDefinition.getJsonPath());
       assertEquals("jokeCategory", columnDefinition.getName());

generator-annotations/src/main/java/io/fabric8/crd/generator/annotation/AdditionalPrinterColumn.java

@@ -0,0 +1,120 @@
+/*
+ * 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.crd.generator.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Repeatable;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Defines an additional printer column. Must be placed at the root of the
+ * custom resource.
+ */
+@Repeatable(AdditionalPrinterColumns.class)
+@Target({ ElementType.TYPE })
+@Retention(RetentionPolicy.RUNTIME)
+public @interface AdditionalPrinterColumn {
+
+  //https://kubernetes.io/docs/tasks/extend-kubernetes/custom-resources/custom-resource-definitions/#type
+  enum Type {
+
+    STRING("string"),
+    INTEGER("integer"),
+    NUMBER("number"),
+    BOOLEAN("boolean"),
+    DATE("date");
+
+    public final String value;
+
+    Type(String value) {
+      this.value = value;
+    }
+
+    public String getValue() {
+      return value;
+    }
+  }
+
+  // https://kubernetes.io/docs/tasks/extend-kubernetes/custom-resources/custom-resource-definitions/#format
+  enum Format {
+
+    NONE(""),
+    INT32("int32"),
+    INT64("int64"),
+    FLOAT("float"),
+    DOUBLE("double"),
+    BYTE("byte"),
+    DATE("date"),
+    DATE_TIME("date-time"),
+    PASSWORD("password");
+
+    public final String value;
+
+    Format(String value) {
+      this.value = value;
+    }
+
+    public String getValue() {
+      return value;
+    }
+  }
+
+  /**
+   * The name of the column. An empty column name implies the use of the last path
+   * element
+   *
+   * @return the column name, or empty string if the last path element should be
+   *         used.
+   */
+  String name() default "";
+
+  /**
+   * The printer column format.
+   *
+   * @return the format or NONE if no format is specified.
+   */
+  Format format() default Format.NONE;
+
+  /**
+   * The printer column priority.
+   *
+   * @return the priority or 0 if no priority is specified.
+   */
+  int priority() default 0;
+
+  /**
+   * The JSON Path to the field
+   * 
+   * @return
+   */
+  String jsonPath();
+
+  /**
+   * The type of the printer column
+   * 
+   * @return the type
+   */
+  Type type() default Type.STRING;
+
+  /**
+   * The description of the printer column
+   * 
+   * @return the description
+   */
+  String getDescription() default "";
+}

generator-annotations/src/main/java/io/fabric8/crd/generator/annotation/AdditionalPrinterColumns.java

@@ -0,0 +1,30 @@
+/*
+ * 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.crd.generator.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * A container for multiple {@link AdditionalPrinterColumn}s
+ */
+@Target({ ElementType.TYPE })
+@Retention(RetentionPolicy.RUNTIME)
+public @interface AdditionalPrinterColumns {
+  AdditionalPrinterColumn[] value();
+}