public boolean corruptionTest(long hash) {
Integer index = f.hashToIndex(hash);
try {
if (index != null) {
f.corruptIndex(index);
return true;
} else {
System.out.println(hash + " doesn't exist, cannot corrupt");
return false;
}
} catch (IOException e) {
return false;
}
}
public byte[] get(Long key, byte[] data) throws IOException {
byte[] value = cache.get(key);
if (value != null) {
return value;
}
value = overwriteBackup.get(key);
if (value != null) {
return value;
}
value = f.readByHash(key, data);
return value;
}
public void put(Long key, byte[] data) throws IOException {
Integer index = f.hashToIndex(key);
if (index != null) {
return;
}
index = f.getIndex();
f.incrementIndex();
Long oldHash = f.indexToHash(index);
byte[] oldData = new byte[(int) size];
oldData = f.readByIndex(index, oldData);
if (oldData != null) {
overwriteBackup.put(oldHash, oldData);
overwriteQueue.add(oldHash);
}
f.write(index, key, data);
if (!cache.contains(key)) {
byte[] dataCopy = new byte[data.length];
System.arraycopy(data, 0, dataCopy, 0, data.length);
cache.put(key, dataCopy);
}
}
public Long getHash(int index) {
return f.indexToHash(index);
}
public Integer getIndex(long key) {
return f.hashToIndex(key);
}
public void wipeFile() throws IOException {
f.wipe();
}