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Code Issues Releases Wiki Activity

bug fixed for JDK6

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This commit is contained in:
wenshao
2013-08-26 17:44:03 +08:00
parent e6c893c86f
commit a9c3137d77
2 changed files with 25 additions and 9 deletions
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src/main/java/com/alibaba/druid/sql/visitor/SQLEvalVisitorUtils.java
+14 -8
View File
@@ -26,7 +26,6 @@ import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.BitSet;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
@@ -91,6 +90,7 @@ import com.alibaba.druid.sql.visitor.functions.Ucase;
import com.alibaba.druid.sql.visitor.functions.Unhex;
import com.alibaba.druid.util.HexBin;
import com.alibaba.druid.util.JdbcUtils;
import com.alibaba.druid.util.Utils;
import com.alibaba.druid.wall.spi.WallVisitorUtils;
import com.alibaba.druid.wall.spi.WallVisitorUtils.WallConditionContext;
import com.alibaba.druid.wall.spi.WallVisitorUtils.WallSelectQueryContext;
@@ -576,22 +576,28 @@ public class SQLEvalVisitorUtils {
public static boolean visit(SQLEvalVisitor visitor, MySqlBinaryExpr x) {
String text = x.getValue();
BitSet bits = new BitSet(text.length());
long[] words = new long[text.length() / 64 + 1];
for (int i = 0; i < text.length(); ++i) {
char ch = text.charAt(i);
if (ch == '1') {
bits.set(i);
int wordIndex = i >> 6;
words[wordIndex] |= (1L << i);
}
}
long[] longValues = bits.toLongArray();
Object val;
if (longValues.length == 1) {
val = longValues[0];
if (words.length == 1) {
val = words[0];
} else {
val = new BigInteger(bits.toByteArray());
byte[] bytes = new byte[words.length * 8];
for (int i = 0; i < words.length; ++i) {
Utils.putLong(bytes, i * 8, words[i]);
}
val = new BigInteger(bytes);
}
x.putAttribute(EVAL_VALUE, val);
src/main/java/com/alibaba/druid/util/Utils.java
+11 -1
View File
@@ -331,6 +331,16 @@ public class Utils {
byte[] bytes = md5Bytes(text);
return HexBin.encode(bytes, false);
}
public static void putLong(byte[] b, int off, long val) {
b[off + 7] = (byte) (val >>> 0);
b[off + 6] = (byte) (val >>> 8);
b[off + 5] = (byte) (val >>> 16);
b[off + 4] = (byte) (val >>> 24);
b[off + 3] = (byte) (val >>> 32);
b[off + 2] = (byte) (val >>> 40);
b[off + 1] = (byte) (val >>> 48);
b[off + 0] = (byte) (val >>> 56);
}
}