shuwenwei commented on code in PR #307:
URL: https://github.com/apache/tsfile/pull/307#discussion_r1855892696
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java/common/src/main/java/org/apache/tsfile/utils/BitMap.java:
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@@ -147,6 +165,35 @@ public boolean equals(Object obj) {
return this.size == other.size && Arrays.equals(this.bits, other.bits);
}
+ public boolean equalsInRange(Object obj, int rangeSize) {
+ if (obj == this) {
+ return true;
+ }
+ if (obj == null) {
+ return false;
+ }
+ if (!(obj instanceof BitMap)) {
+ return false;
+ }
+ BitMap other = (BitMap) obj;
+ // implement
+
+ int byteSize = rangeSize / Byte.SIZE;
+ for (int i = 0; i < byteSize; i++) {
+ if (this.bits[i] != other.bits[i]) {
+ return false;
+ }
+ }
+ int remainingBits = rangeSize % Byte.SIZE;
+ if (remainingBits > 0) {
+ byte mask = (byte) (0xFF >> (Byte.SIZE - remainingBits));
+ if ((this.bits[byteSize] & mask) != (other.bits[byteSize] & mask)) {
+ return false;
+ }
+ }
+ return true;
+ }
Review Comment:
Arrays.compare may not be available in lower java versions.
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