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Added backup and restore for device db functionality. Testing multi

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button press for harmony.
This commit is contained in:
Admin
2016-01-26 16:47:16 -06:00
parent 315fd31270
commit 4bc91be88b
7 changed files with 280 additions and 8 deletions
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80
src/main/java/com/bwssystems/HABridge/dao/DeviceRepository.java
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@@ -3,12 +3,17 @@ package com.bwssystems.HABridge.dao;
import java.io.IOException;
import java.io.StringReader;
import java.nio.file.DirectoryStream;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardCopyOption;
import java.nio.file.StandardOpenOption;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;
@@ -33,8 +38,16 @@ public class DeviceRepository {
public DeviceRepository(String deviceDb) {
super();
repositoryPath = Paths.get(deviceDb);
String jsonContent = repositoryReader(repositoryPath);
_loadRepository(deviceDb);
}
private void _loadRepository(String aFilePath){
repositoryPath = Paths.get(aFilePath);
_loadRepository(repositoryPath);
}
private void _loadRepository(Path aPath){
String jsonContent = repositoryReader(aPath);
devices = new HashMap<String, DeviceDescriptor>();
if(jsonContent != null)
@@ -47,7 +60,8 @@ public class DeviceRepository {
put(theDevice.getId(), theDevice);
}
}
}
}
public List<DeviceDescriptor> findAll() {
List<DeviceDescriptor> list = new ArrayList<DeviceDescriptor>(devices.values());
@@ -79,6 +93,66 @@ public class DeviceRepository {
log.debug("Save device: " + aDescriptor.getName());
}
public String backup(String aFilename) {
if(aFilename == null || aFilename.equalsIgnoreCase("")) {
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
aFilename = "devicedb-" + dateFormat.format(Calendar.getInstance().getTime()) + ".bk";
}
else
aFilename = aFilename + ".bk";
try {
Files.copy(repositoryPath, FileSystems.getDefault().getPath(repositoryPath.getParent().toString(), aFilename), StandardCopyOption.COPY_ATTRIBUTES);
} catch (IOException e) {
log.error("Could not backup to file: " + aFilename + " message: " + e.getMessage(), e);
}
log.debug("Backup repository: " + aFilename);
return aFilename;
}
public String deleteBackup(String aFilename) {
log.debug("Delete backup repository: " + aFilename);
try {
Files.delete(FileSystems.getDefault().getPath(repositoryPath.getParent().toString(), aFilename));
} catch (IOException e) {
log.error("Could not delete file: " + aFilename + " message: " + e.getMessage(), e);
}
return aFilename;
}
public String restoreBackup(String aFilename) {
log.debug("Restore backup repository: " + aFilename);
try {
Path target = null;
if(Files.exists(repositoryPath)) {
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
target = FileSystems.getDefault().getPath(repositoryPath.getParent().toString(), "devicedb-" + dateFormat.format(Calendar.getInstance().getTime()) + ".bk");
Files.move(repositoryPath, target);
}
Files.copy(FileSystems.getDefault().getPath(repositoryPath.getParent().toString(), aFilename), repositoryPath, StandardCopyOption.COPY_ATTRIBUTES);
} catch (IOException e) {
log.error("Error restoring the file: " + aFilename + " message: " + e.getMessage(), e);
return null;
}
_loadRepository(repositoryPath);
return aFilename;
}
public List<String> getBackups() {
List<String> theFilenames = new ArrayList<String>();
Path dir = repositoryPath.getParent();
try (DirectoryStream<Path> stream =
Files.newDirectoryStream(dir, "*.{bk}")) {
for (Path entry: stream) {
theFilenames.add(entry.getFileName().toString());
}
} catch (IOException x) {
// IOException can never be thrown by the iteration.
// In this snippet, it can // only be thrown by newDirectoryStream.
log.error("Issue getting direcotyr listing for backups - " + x.getMessage());
}
return theFilenames;
}
public String delete(DeviceDescriptor aDescriptor) {
if (aDescriptor != null) {
devices.remove(aDescriptor.getId());