refactor

alibaba · Jan 15, 2025 · 57d276f · 57d276f
1 parent 22817d0
commit 57d276f
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Showing 3 changed files with 9 additions and 4 deletions.
diff --git a/core/src/main/java/com/alibaba/fastjson2/support/csv/CSVWriterUTF16.java b/core/src/main/java/com/alibaba/fastjson2/support/csv/CSVWriterUTF16.java
@@ -16,6 +16,7 @@ final class CSVWriterUTF16
         extends CSVWriter {
     final Writer out;
     final char[] chars;
+    private static final int DOUBLE_QUOTE_2_UTF16 = '"' | ('"' << 16);
 
     CSVWriterUTF16(
             Writer out,
@@ -139,8 +140,7 @@ public void writeString(final String str) {
         for (int i = 0; i < len; ) {
             char ch = str.charAt(i++);
             if (ch == '"') {
-                chars[off] = '"';
-                chars[off + 1] = '"';
+                IOUtils.putIntUnaligned(chars, off, DOUBLE_QUOTE_2_UTF16);
                 off += 2;
             } else {
                 chars[off++] = ch;

diff --git a/core/src/main/java/com/alibaba/fastjson2/support/csv/CSVWriterUTF8.java b/core/src/main/java/com/alibaba/fastjson2/support/csv/CSVWriterUTF8.java
@@ -14,6 +14,8 @@
 
 final class CSVWriterUTF8
         extends CSVWriter {
+    private static final short DOUBLE_QUOTE_2_LATIN1 = 0x22 | (0x22 << 8);
+
     final OutputStream out;
     final Charset charset;
     final byte[] bytes;
@@ -171,8 +173,7 @@ public void writeString(byte[] utf8) {
         bytes[off++] = '"';
         for (byte ch : utf8) {
             if (ch == '"') {
-                bytes[off] = '"';
-                bytes[off + 1] = '"';
+                IOUtils.putShortUnaligned(bytes, off, DOUBLE_QUOTE_2_LATIN1);
                 off += 2;
             } else {
                 bytes[off++] = ch;

diff --git a/core/src/main/java/com/alibaba/fastjson2/util/IOUtils.java b/core/src/main/java/com/alibaba/fastjson2/util/IOUtils.java
@@ -1655,6 +1655,10 @@ public static boolean isDigit(int ch) {
         return ch >= '0' && ch <= '9';
     }
 
+    public static short getShortUnaligned(byte[] bytes, int offset) {
+        return UNSAFE.getShort(bytes, ARRAY_BYTE_BASE_OFFSET + offset);
+    }
+
     public static short getShortLE(byte[] bytes, int offset) {
         return convEndian(false,
                 UNSAFE.getShort(bytes, ARRAY_BYTE_BASE_OFFSET + offset));