1 files changed, 74 insertions, 0 deletions
diff --git a/common/openecomp-sdc-artifact-generator-lib/openecomp-sdc-artifact-generator-core/src/main/java/org/openecomp/sdc/generator/GeneratorTask.java b/common/openecomp-sdc-artifact-generator-lib/openecomp-sdc-artifact-generator-core/src/main/java/org/openecomp/sdc/generator/GeneratorTask.java
new file mode 100644
index 0000000000..beb8f2d576
--- /dev/null
+++ b/common/openecomp-sdc-artifact-generator-lib/openecomp-sdc-artifact-generator-core/src/main/java/org/openecomp/sdc/generator/GeneratorTask.java
@@ -0,0 +1,74 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.generator;
+
+import org.openecomp.core.logging.api.Logger;
+import org.openecomp.core.logging.api.LoggerFactory;
+import org.openecomp.sdc.generator.data.Artifact;
+import org.openecomp.sdc.generator.data.GenerationData;
+import org.openecomp.sdc.generator.intf.ArtifactGenerator;
+
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.RecursiveTask;
+
+public class GeneratorTask extends RecursiveTask<GenerationData> {
+
+  private static Logger log = LoggerFactory.getLogger(GeneratorTask.class.getName());
+
+  List<Artifact> input;
+  List<ArtifactGenerator> generators;
+  Map<String, String> additionalParams;
+
+  /**
+   * Instantiates a new Generator task.
+   *
+   * @param generators       the generators
+   * @param input            the input
+   * @param additionalParams the additional params
+   */
+  public GeneratorTask(List<ArtifactGenerator> generators, List<Artifact> input,
+                       Map<String, String> additionalParams ) {
+    this.input = input;
+    this.generators = generators;
+    this.additionalParams = additionalParams;
+  }
+
+  @Override
+  protected GenerationData compute() {
+    if (generators.size() == 1) {
+      log.debug("Instantiating Generator : " + generators.get(0).getClass().getName());
+      return generators.remove(0).generateArtifact(input, additionalParams);
+    } else {
+      LinkedList<ArtifactGenerator> generator = new LinkedList<>();
+      generator.add(generators.remove(0));
+      GeneratorTask tobeDone = new GeneratorTask(generator, input, additionalParams);
+      GeneratorTask tobeForked =
+          new GeneratorTask(new LinkedList<ArtifactGenerator>(generators), input, additionalParams);
+      tobeForked.fork();
+      GenerationData output = tobeDone.compute();
+      output.add(tobeForked.join());
+      return output;
+    }
+  }
+
+}