public void commitChanges() throws IOException, RuntimeException {
Throwable t = null;
RandomAccessFile dataFile = null;
try {
try {
dataFile = new RandomAccessFile(filePath, "rw");
} catch (FileNotFoundException e) {
throw new RuntimeException(filePath + " can't get access to file", e);
}
if (data == null || data.isEmpty()) {
closeDataFile(dataFile);
Shell sh = new Shell(tablePath, false);
if (sh.rm(filePath) != Shell.ExitCode.OK) {
throw new RuntimeException(filePath + " can't delete file");
}
exists = false;
return;
}
int offset = 0;
Set<Map.Entry<String, Storeable>> mySet = data.entrySet();
for (Map.Entry<String, Storeable> myEntry : mySet) {
offset += getLength(myEntry.getKey()) + 1 + 4;
}
int currOffset = offset;
dataFile.setLength(0);
dataFile.seek(0);
for (Map.Entry<String, Storeable> myEntry : mySet) {
dataFile.write(myEntry.getKey().getBytes());
dataFile.writeByte(0);
dataFile.writeInt(currOffset);
currOffset += getLength(table.getProvider().serialize(table, myEntry.getValue()));
}
for (Map.Entry<String, Storeable> myEntry : mySet) {
dataFile.write(table.getProvider().serialize(table, myEntry.getValue()).getBytes());
}
} catch (RuntimeException e5) {
t = e5;
throw e5;
} finally {
try {
closeDataFile(dataFile);
} catch (Throwable e6) {
if (t != null) {
t.addSuppressed(e6);
}
}
}
}
public void load(RandomAccessFile dataFile) throws RuntimeException, IOException, ParseException {
try {
if (dataFile.length() == 0) {
return;
}
long currPtr = 0;
long firstOffset = 0;
long newOffset = 0;
long nextOffset = 0;
String keyFirst = "";
String keySecond = "";
String value;
dataFile.seek(currPtr);
keyFirst = getKeyFromFile(dataFile);
newOffset = dataFile.readInt();
currPtr = dataFile.getFilePointer();
checkOffset(newOffset, currPtr, dataFile);
firstOffset = newOffset;
do {
dataFile.seek(currPtr);
if (currPtr < firstOffset) {
keySecond = getKeyFromFile(dataFile);
nextOffset = dataFile.readInt();
currPtr = dataFile.getFilePointer();
checkOffset(nextOffset, currPtr, dataFile);
} else if (currPtr == firstOffset) {
nextOffset = dataFile.length();
currPtr++;
}
if (nextOffset < newOffset) {
IOException e1 = new IOException();
throw e1;
}
dataFile.seek(newOffset);
value = getValueFromFile(nextOffset, dataFile);
MyStoreable val;
try {
val = (MyStoreable) table.getProvider().deserialize(table, value);
} catch (ParseException e) {
throw new ParseException(
filePath + " can't deserialize values from file " + e.getMessage(),
e.getErrorOffset());
}
data.put(keyFirst, val);
// table.getHashMap().put(keyFirst, val);*/
keyFirst = keySecond;
newOffset = nextOffset;
} while (currPtr <= firstOffset);
hasChanged = true;
} catch (IOException e1) {
throw new IOException(filePath + " can't read values from file", e1);
} catch (OutOfMemoryError e2) {
throw new RuntimeException(filePath + " can't read values from file: out of memory", e2);
}
}
