1 files changed, 108 insertions, 0 deletions
diff --git a/asdctool/src/main/java/org/openecomp/sdc/asdctool/migration/tasks/mig1902/SdcConsumerMigration.java b/asdctool/src/main/java/org/openecomp/sdc/asdctool/migration/tasks/mig1902/SdcConsumerMigration.java
new file mode 100644
index 0000000000..16f0c485dc
--- /dev/null
+++ b/asdctool/src/main/java/org/openecomp/sdc/asdctool/migration/tasks/mig1902/SdcConsumerMigration.java
@@ -0,0 +1,108 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2020 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.asdctool.migration.tasks.mig1902;
+
+import fj.data.Either;
+import org.openecomp.sdc.asdctool.migration.core.DBVersion;
+import org.openecomp.sdc.asdctool.migration.core.task.Migration;
+import org.openecomp.sdc.asdctool.migration.core.task.MigrationResult;
+import org.openecomp.sdc.be.dao.janusgraph.JanusGraphGenericDao;
+import org.openecomp.sdc.be.dao.janusgraph.JanusGraphOperationStatus;
+import org.openecomp.sdc.be.datatypes.enums.NodeTypeEnum;
+import org.openecomp.sdc.be.resources.data.ConsumerData;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+
+import java.math.BigInteger;
+import java.util.List;
+
+@Component
+public class SdcConsumerMigration implements Migration {
+
+    private static final Logger logger = LoggerFactory.getLogger(SdcConsumerMigration.class);
+
+    private JanusGraphGenericDao janusGraphGenericDao;
+
+    public SdcConsumerMigration(JanusGraphGenericDao janusGraphGenericDao) {
+        this.janusGraphGenericDao = janusGraphGenericDao;
+    }
+
+    @Override
+    public String description() {
+        return "remove all consumer nodes";
+    }
+
+    @Override
+    public DBVersion getVersion() {
+        return DBVersion.from(BigInteger.valueOf(1902), BigInteger.valueOf(0));
+    }
+
+    @Override
+    public MigrationResult migrate() {
+        JanusGraphOperationStatus status = null;
+        try {
+            status = handleConsumerNodes();
+            if (status == JanusGraphOperationStatus.OK){
+                logger.info("removed all consumer nodes.");
+                return MigrationResult.success();
+            } else {
+                return MigrationResult.error("failed to remove consumer nodes. error: " + status);
+            }
+        } finally {
+            commitOrRollBack(status);
+        }
+    }
+
+    private void commitOrRollBack(JanusGraphOperationStatus status) {
+        if (status == JanusGraphOperationStatus.OK) {
+            janusGraphGenericDao.commit();
+        } else {
+            janusGraphGenericDao.rollback();
+        }
+    }
+
+    private JanusGraphOperationStatus handleConsumerNodes() {
+        logger.info("getting all consumer nodes.");
+        return janusGraphGenericDao.getAll(NodeTypeEnum.ConsumerCredentials, ConsumerData.class)
+                .either(this::removeConsumerNodes, this::handleError);
+    }
+
+    private JanusGraphOperationStatus removeConsumerNodes(List<ConsumerData> consumerNodes){
+        logger.info("found {} consumer nodes.", consumerNodes.size());
+        return consumerNodes.stream()
+                .map(consumerNode -> janusGraphGenericDao.deleteNode(consumerNode, ConsumerData.class))
+                .filter(Either::isRight)
+                .map(either -> either.right().value())
+                .findAny()
+                .orElse(JanusGraphOperationStatus.OK);
+    }
+
+    private JanusGraphOperationStatus handleError(JanusGraphOperationStatus status){
+        if (status == JanusGraphOperationStatus.NOT_FOUND) {
+            logger.info("found 0 consumer nodes.");
+            return JanusGraphOperationStatus.OK;
+        } else{
+            return status;
+        }
+    }
+
+}