lxy/redkale
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

JsonByteBufferReader

Browse Source
This commit is contained in:
redkale
2024-09-17 13:24:20 +08:00
parent f2992a76fa
commit 58d3f5101c
2 changed files with 275 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

270
src/main/java/org/redkale/convert/json/JsonByteBufferReader.java
View File

@@ -197,6 +197,276 @@ public class JsonByteBufferReader extends JsonReader {
throw new ConvertException("expected a ':' but '" + ch + "'(position = " + pos + ") in (" + sb + ")");
}
/**
* 读取一个int值
*
* @return int值
*/
@Override
public int readInt() {
char firstchar = nextGoodChar(true);
boolean quote = false;
if (firstchar == '"' || firstchar == '\'') {
quote = true;
firstchar = nextGoodChar(false);
if (firstchar == '"' || firstchar == '\'') {
return 0;
}
}
int value = 0;
final boolean negative = firstchar == '-';
if (!negative) {
if (firstchar == '+') {
firstchar = nextChar(); // 兼容+开头的
}
if (firstchar < '0' || firstchar > '9') {
throw new ConvertException("illegal escape(" + firstchar + ") (position = " + position + ")");
}
value = digits[firstchar];
}
if (firstchar == 'N') {
if (negative) {
throw new ConvertException("illegal escape(" + firstchar + ") (position = " + position + ")");
}
char c = nextChar();
if (c != 'a') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
c = nextChar();
if (c != 'N') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
if (quote) {
c = nextChar();
if (c != '"' && c != '\'') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
}
return 0; // NaN 返回0;
} else if (firstchar == 'I') { // Infinity
char c = nextChar();
if (c != 'n') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
c = nextChar();
if (c != 'f') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
c = nextChar();
if (c != 'i') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
c = nextChar();
if (c != 'n') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
c = nextChar();
if (c != 'i') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
c = nextChar();
if (c != 't') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
c = nextChar();
if (c != 'y') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
if (quote) {
c = nextChar();
if (c != '"' && c != '\'') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
}
return negative ? Integer.MIN_VALUE : Integer.MAX_VALUE;
}
boolean hex = false;
boolean dot = false;
for (; ; ) {
char ch = nextChar();
if (ch == 0) {
break;
}
if (ch >= '0' && ch <= '9') {
if (dot) {
continue;
}
value = (hex ? (value << 4) : ((value << 3) + (value << 1))) + digits[ch];
} else if (ch == '"' || ch == '\'') {
if (quote) {
break;
}
throw new ConvertException("illegal escape(" + ch + ") (position = " + position + ")");
} else if (ch == 'x' || ch == 'X') {
if (value != 0) {
throw new ConvertException("illegal escape(" + ch + ") (position = " + position + ")");
}
hex = true;
} else if (ch >= 'a' && ch <= 'f') {
if (!hex) {
throw new ConvertException("illegal escape(" + ch + ") (position = " + position + ")");
}
if (dot) {
continue;
}
value = (value << 4) + digits[ch];
} else if (ch >= 'A' && ch <= 'F') {
if (!hex) {
throw new ConvertException("illegal escape(" + ch + ") (position = " + position + ")");
}
if (dot) {
continue;
}
value = (value << 4) + digits[ch];
} else if (quote && ch <= ' ') {
// do nothing
} else if (ch == '.') {
dot = true;
} else if (ch == ',' || ch == '}' || ch == ']' || ch <= ' ' || ch == ':') {
backChar(ch);
break;
} else {
throw new ConvertException("illegal escape(" + ch + ") (position = " + position + ")");
}
}
return negative ? -value : value;
}
/**
* 读取一个long值
*
* @return long值
*/
@Override
public long readLong() {
char firstchar = nextGoodChar(true);
boolean quote = false;
if (firstchar == '"' || firstchar == '\'') {
quote = true;
firstchar = nextGoodChar(false);
if (firstchar == '"' || firstchar == '\'') {
return 0L;
}
}
long value = 0;
final boolean negative = firstchar == '-';
if (!negative) {
if (firstchar == '+') {
firstchar = nextChar(); // 兼容+开头的
}
if (firstchar < '0' || firstchar > '9') {
throw new ConvertException("illegal escape(" + firstchar + ") (position = " + position + ")");
}
value = digits[firstchar];
}
if (firstchar == 'N') {
if (negative) {
throw new ConvertException("illegal escape(" + firstchar + ") (position = " + position + ")");
}
char c = nextChar();
if (c != 'a') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
c = nextChar();
if (c != 'N') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
if (quote) {
c = nextChar();
if (c != '"' && c != '\'') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
}
return 0L; // NaN 返回0;
} else if (firstchar == 'I') { // Infinity
char c = nextChar();
if (c != 'n') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
c = nextChar();
if (c != 'f') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
c = nextChar();
if (c != 'i') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
c = nextChar();
if (c != 'n') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
c = nextChar();
if (c != 'i') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
c = nextChar();
if (c != 't') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
c = nextChar();
if (c != 'y') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
if (quote) {
c = nextChar();
if (c != '"' && c != '\'') {
throw new ConvertException("illegal escape(" + c + ") (position = " + position + ")");
}
}
return negative ? Long.MIN_VALUE : Long.MAX_VALUE;
}
boolean hex = false;
boolean dot = false;
for (; ; ) {
char ch = nextChar();
if (ch == 0) {
break;
}
if (ch >= '0' && ch <= '9') {
if (dot) {
continue;
}
value = (hex ? (value << 4) : ((value << 3) + (value << 1))) + digits[ch];
} else if (ch == '"' || ch == '\'') {
if (quote) {
break;
}
throw new ConvertException("illegal escape(" + ch + ") (position = " + position + ")");
} else if (ch == 'x' || ch == 'X') {
if (value != 0) {
throw new ConvertException("illegal escape(" + ch + ") (position = " + position + ")");
}
hex = true;
} else if (ch >= 'a' && ch <= 'f') {
if (!hex) {
throw new ConvertException("illegal escape(" + ch + ") (position = " + position + ")");
}
if (dot) {
continue;
}
value = (value << 4) + digits[ch];
} else if (ch >= 'A' && ch <= 'F') {
if (!hex) {
throw new ConvertException("illegal escape(" + ch + ") (position = " + position + ")");
}
if (dot) {
continue;
}
value = (value << 4) + digits[ch];
} else if (quote && ch <= ' ') {
// do nothing
} else if (ch == '.') {
dot = true;
} else if (ch == ',' || ch == '}' || ch == ']' || ch <= ' ' || ch == ':') {
backChar(ch);
break;
} else {
throw new ConvertException("illegal escape(" + ch + ") (position = " + position + ")");
}
}
return negative ? -value : value;
}
/**
* 读取小字符串
*

9
src/main/java/org/redkale/convert/json/JsonReader.java
View File

@@ -408,7 +408,7 @@ public class JsonReader extends Reader {
if (firstchar < '0' || firstchar > '9') {
throw new ConvertException("illegal escape(" + firstchar + ") (position = " + position + ")");
}
value = firstchar - '0';
value = digits[firstchar];
}
if (firstchar == 'N') {
if (negative) {
@@ -505,6 +505,7 @@ public class JsonReader extends Reader {
}
value = (value << 4) + digits[ch];
} else if (quote && ch <= ' ') {
// do nothing
} else if (ch == '.') {
dot = true;
} else if (ch == ',' || ch == '}' || ch == ']' || ch <= ' ' || ch == ':') {
@@ -542,7 +543,7 @@ public class JsonReader extends Reader {
if (firstchar < '0' || firstchar > '9') {
throw new ConvertException("illegal escape(" + firstchar + ") (position = " + position + ")");
}
value = firstchar - '0';
value = digits[firstchar];
}
if (firstchar == 'N') {
if (negative) {
@@ -639,6 +640,7 @@ public class JsonReader extends Reader {
}
value = (value << 4) + digits[ch];
} else if (quote && ch <= ' ') {
// do nothing
} else if (ch == '.') {
dot = true;
} else if (ch == ',' || ch == '}' || ch == ']' || ch <= ' ' || ch == ':') {
@@ -657,7 +659,6 @@ public class JsonReader extends Reader {
@Override
public DeMember readFieldName(final DeMemberInfo memberInfo) {
final int eof = this.limit;
if (this.position == eof) {
return null;
@@ -1026,7 +1027,7 @@ public class JsonReader extends Reader {
}
}
static final int[] digits = new int[255];
protected static final int[] digits = new int[255];
static {
for (int i = 0; i < digits.length; i++) {