1 files changed, 158 insertions, 0 deletions
diff --git a/appc-dispatcher/appc-workflow-management/appc-workflow-management-core/src/main/java/org/onap/appc/workflow/activator/TransactionAbortedMarker.java b/appc-dispatcher/appc-workflow-management/appc-workflow-management-core/src/main/java/org/onap/appc/workflow/activator/TransactionAbortedMarker.java
new file mode 100644
index 000000000..6e061e15a
--- /dev/null
+++ b/appc-dispatcher/appc-workflow-management/appc-workflow-management-core/src/main/java/org/onap/appc/workflow/activator/TransactionAbortedMarker.java
@@ -0,0 +1,158 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * 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.
+ * 
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.workflow.activator;
+
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+import org.onap.appc.transactionrecorder.TransactionRecorder;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.FrameworkUtil;
+import org.osgi.framework.ServiceReference;
+
+import java.io.*;
+import java.util.UUID;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+
+public class TransactionAbortedMarker implements Runnable {
+
+    private ScheduledExecutorService executor = null;
+
+    public static final String PREFIX = "APPC";
+    public static final String SUFFIX = "VM";
+    private final EELFLogger logger = EELFManager.getInstance().getLogger(TransactionAbortedMarker.class);
+
+    public TransactionAbortedMarker(ScheduledExecutorService executor){
+        this.executor = executor;
+    }
+
+    @Override
+    public void run() {
+        try {
+            TransactionRecorder recorder = lookupTransactionRecorder();
+
+            File newAppcInstanceIdFile = File.createTempFile(PREFIX, SUFFIX);
+            File parentDirectory = newAppcInstanceIdFile.getParentFile();
+            if (logger.isDebugEnabled()) {
+                logger.debug("New instance id file path" + newAppcInstanceIdFile.getAbsolutePath());
+            }
+
+            File[] allInstanceIdFiles = getAllInstanceIdFiles(parentDirectory);
+
+            if (allInstanceIdFiles.length > 0) {
+                File lastModifiedFile = getLastModifiedFile(allInstanceIdFiles);
+                if (logger.isDebugEnabled()) {
+                    logger.debug("Last Modified File" + lastModifiedFile.getName());
+                }
+                String prevAppcInstanceId = readInstanceId(lastModifiedFile);
+                recorder.markTransactionsAborted(prevAppcInstanceId);
+                boolean isFileDeleted = lastModifiedFile.delete();
+                logger.debug("Previous file deleted  " + isFileDeleted);
+            }
+            String newAppcInstanceId = writeNewInstanceId(newAppcInstanceIdFile);
+            recorder.setAppcInstanceId(newAppcInstanceId);
+        } catch (TransactionRecorderServiceNotFoundException e) {
+            logger.warn("Transaction Recorder Service Not Found, Next attempt after 30 seconds");
+            executor.schedule(this,30, TimeUnit.SECONDS);
+        } catch (Exception e) {
+            logger.error("Error on workflow manager bundle start-up" + e.getMessage(), e);
+            throw new RuntimeException(e);
+        }
+    }
+
+
+
+    protected TransactionRecorder lookupTransactionRecorder() throws TransactionRecorderServiceNotFoundException {
+        String message = null;
+        BundleContext bctx = FrameworkUtil.getBundle(TransactionRecorder.class).getBundleContext();
+        if(bctx!=null){
+            ServiceReference sref= bctx.getServiceReference(TransactionRecorder.class.getName());
+            TransactionRecorder transactionRecorder;
+            if (sref != null) {
+                transactionRecorder = (TransactionRecorder) bctx.getService(sref);
+                if (transactionRecorder != null) {
+                    return transactionRecorder;
+                }
+            }
+        }
+        message = "Cannot find service org.onap.appc.transactionrecorder.TransactionRecorder";
+        logger.warn(message);
+        throw new TransactionRecorderServiceNotFoundException(message);
+    }
+
+    private String writeNewInstanceId(File newInstanceIdFile) throws IOException {
+        String newAppcInstanceId = UUID.randomUUID().toString();
+        try (FileWriter writer = new FileWriter(newInstanceIdFile)) {
+            writer.write(newAppcInstanceId);
+        }
+        catch (IOException e){
+            String message = "Error writing appc-instance-id";
+            logger.error(message,e);
+            throw new RuntimeException(message);
+        }
+        logger.debug("new appc-instance-id = " + newAppcInstanceId);
+        return newAppcInstanceId;
+    }
+
+    private String readInstanceId(File lastModifiedFile) {
+        String prevAppcInstanceId = null;
+        BufferedReader buffReader;
+        try (FileReader reader = new FileReader(lastModifiedFile)) {
+            buffReader = new BufferedReader(reader);
+            prevAppcInstanceId = buffReader.readLine();
+        }
+        catch (IOException e){
+            String message ="Error reading previous appc-instance-id";
+            logger.error(message,e);
+            throw new RuntimeException(message);
+        }
+        logger.debug("previous appc-instance-id " + prevAppcInstanceId);
+        return prevAppcInstanceId;
+    }
+
+    private File[] getAllInstanceIdFiles(File directory) {
+        return directory.listFiles(pathname -> {
+            if (pathname.getName().startsWith(PREFIX)
+                    && pathname.getName().endsWith(SUFFIX)
+                    && pathname.length()>0)
+                return true;
+            return false;
+        });
+    }
+
+    private File getLastModifiedFile(File[] allInstanceIdFiles) {
+        File lastModifiedFile = allInstanceIdFiles[0];
+        long lastModified = allInstanceIdFiles[0].lastModified();
+        for(File file:allInstanceIdFiles){
+            if(file.lastModified() > lastModified){
+                lastModified = file.lastModified();
+                lastModifiedFile = file;
+            }
+        }
+        return lastModifiedFile;
+    }
+}