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k8s-dvfs/src/main/groovy/recreationaltech/plugin/K8sDvfsExtension.groovy

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+/*
+ * Copyright 2025, Seqera Labs
+ *
+ * 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 recreationaltech.plugin
+
+import groovy.transform.CompileStatic
+import nextflow.Session
+import nextflow.plugin.extension.Function
+import nextflow.plugin.extension.PluginExtensionPoint
+
+/**
+ * Implements a custom function which can be imported by
+ * Nextflow scripts.
+ */
+@CompileStatic
+class K8sDvfsExtension extends PluginExtensionPoint {
+
+    @Override
+    protected void init(Session session) {
+    }
+
+    /**
+     * Say hello to the given target.
+     *
+     * @param target
+     */
+    @Function
+    void sayHello(String target) {
+        println "Hello, ${target}!"
+    }
+
+}

k8s-dvfs/src/main/groovy/recreationaltech/plugin/K8sDvfsFactory.groovy

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+/*
+ * Copyright 2025, Seqera Labs
+ *
+ * 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 recreationaltech.plugin
+
+import groovy.transform.CompileStatic
+import nextflow.Session
+import nextflow.trace.TraceObserver
+import nextflow.trace.TraceObserverFactory
+
+/**
+ * Implements a factory object required to create
+ * the {@link K8sDvfsObserver} instance.
+ */
+@CompileStatic
+class K8sDvfsFactory implements TraceObserverFactory {
+
+    @Override
+    Collection<TraceObserver> create(Session session) {
+        return List.<TraceObserver>of(new K8sDvfsObserver())
+    }
+
+}

k8s-dvfs/src/main/groovy/recreationaltech/plugin/K8sDvfsObserver.groovy

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+/*
+ * Copyright 2025, Seqera Labs
+ *
+ * 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 recreationaltech.plugin
+
+import groovy.transform.CompileStatic
+import groovy.util.logging.Slf4j
+import nextflow.Session
+import nextflow.trace.TraceObserver
+
+/**
+ * Implements an observer that allows implementing custom
+ * logic on nextflow execution events.
+ */
+@Slf4j
+@CompileStatic
+class K8sDvfsObserver implements TraceObserver {
+
+    @Override
+    void onFlowCreate(Session session) {
+        println "Pipeline is starting! 🚀"
+    }
+
+    @Override
+    void onFlowComplete() {
+        println "Pipeline complete! 👋"
+    }
+}

k8s-dvfs/src/main/groovy/recreationaltech/plugin/K8sDvfsPlugin.groovy

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+/*
+ * Copyright 2025, Seqera Labs
+ *
+ * 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 recreationaltech.plugin
+
+import groovy.transform.CompileStatic
+import nextflow.plugin.BasePlugin
+import org.pf4j.PluginWrapper
+
+/**
+ * The plugin entry point
+ */
+@CompileStatic
+class K8sDvfsPlugin extends BasePlugin {
+
+    K8sDvfsPlugin(PluginWrapper wrapper) {
+        super(wrapper)
+    }
+}