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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017-2018 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.
*
* ============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;
}
}
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