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[android][database] Fix hanging db when querying object with large numerical keys

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This commit is contained in:
Chris Bianca
2017-06-16 13:10:11 +01:00
parent 61ed7e1e96
commit 2fdb73656e
3 changed files with 62 additions and 9 deletions
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16
android/src/main/java/io/invertase/firebase/Utils.java
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@@ -213,16 +213,22 @@ public class Utils {
}
/**
* Data should be treated as an array if:
* 1) All the keys are integers
* 2) More than half the keys between 0 and the maximum key in the object have non-empty values
*
* Definition from: https://firebase.googleblog.com/2014/04/best-practices-arrays-in-firebase.html
*
* @param snapshot
* @return
*/
private static boolean isArray(DataSnapshot snapshot) {
long expectedKey = -1;
long maxAllowedKey = (snapshot.getChildrenCount() * 2) - 1;
for (DataSnapshot child : snapshot.getChildren()) {
try {
long key = Long.parseLong(child.getKey());
if (key > expectedKey) {
if (key > expectedKey && key <= maxAllowedKey) {
expectedKey = key;
} else {
return false;
@@ -235,16 +241,22 @@ public class Utils {
}
/**
* Data should be treated as an array if:
* 1) All the keys are integers
* 2) More than half the keys between 0 and the maximum key in the object have non-empty values
*
* Definition from: https://firebase.googleblog.com/2014/04/best-practices-arrays-in-firebase.html
*
* @param mutableData
* @return
*/
private static boolean isArray(MutableData mutableData) {
long expectedKey = -1;
long maxAllowedKey = (mutableData.getChildrenCount() * 2) - 1;
for (MutableData child : mutableData.getChildren()) {
try {
long key = Long.parseLong(child.getKey());
if (key > expectedKey) {
if (key > expectedKey && key <= maxAllowedKey) {
expectedKey++;
} else {
return false;