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package com.ford.syncV4.android.manager;
import android.util.SparseArray;
import com.ford.syncV4.proxy.rpc.PutFile;
/**
* Created with Android Studio.
* Author: Chernyshov Yuriy - Mobile Development
* Date: 1/30/14
* Time: 4:30 PM
*/
/**
* This class manage a procedure of transfer PutFile. There is a possibility keep reference for
* the PutFile which is going to be transmitted in the array, then, upon transfer success, there is
* a possibility to remove reference from array. There are also additional helper methods which
* allow to manage array of the PutFiles. This class IS NOT thread safe!
*/
public class PutFileTransferManager {
// A map to track PutFiles which are send successfully
private SparseArray<PutFile> mPutFilesArray;
public PutFileTransferManager() {
mPutFilesArray = new SparseArray<PutFile>();
}
/**
* Keep PutFile in the array
*
* @param correlationId unique identifier of the PutFile object
* @param putFile PutFile object to store in array
*/
public void addPutFileToAwaitArray(int correlationId, PutFile putFile) {
mPutFilesArray.put(correlationId, putFile);
}
/**
* Remove PutFile from the array
* @param correlationId unique identifier of the PutFile object
*/
public void removePutFileFromAwaitArray(int correlationId) {
PutFile putFile = mPutFilesArray.get(correlationId);
if (putFile != null) {
// Not sure if this technique will actually null an Object
addPutFileToAwaitArray(correlationId, null);
mPutFilesArray.delete(correlationId);
}
}
/**
* Checks whether a PutFile with given unique identifier exists in the array
* @param correlationId unique identifier of the PutFile object
* @return true if PutFile with such correlationId exists, false in any other case
*/
public boolean hasPutFileInAwaitArray(int correlationId) {
return mPutFilesArray != null && mPutFilesArray.get(correlationId) != null;
}
/**
* Return and remove next available PutFile object from array
* @return PutFile object if such exists or null if array is empty
*/
public PutFile getNextPutFile() {
if (mPutFilesArray.size() == 0) {
return null;
}
PutFile putFile = mPutFilesArray.get(mPutFilesArray.size() - 1);
mPutFilesArray.delete(mPutFilesArray.size() - 1);
return putFile;
}
/**
* Check if there are any PutFiles in array
* @return true if there are PutFiles in array, false if array is empty
*/
public boolean hasNext() {
return mPutFilesArray != null && mPutFilesArray.size() > 0;
}
/**
* Return a copy of the array
* @return a copy of the array
*/
public SparseArray<PutFile> getCopy() {
return mPutFilesArray.clone();
}
/**
* Clear the existed array of PutFiles
*/
public void clear() {
if (mPutFilesArray != null) {
mPutFilesArray.clear();
}
}
}
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