minor improvements to manual micro-benchmarks

Author: cowtowncoder

src/test/java/perf/ManualCharAccessTest.java

@@ -112,7 +112,7 @@ private void test() throws Exception
     private final long readClassic(int REPS, char[] input, char[] output) throws Exception
     {
         long start = System.currentTimeMillis();
-        final byte[] codes = BYTE_CODES;
+        final byte[] codes = SMALL_BYTE_CODES;
         final int MAX = 256;
 
         while (--REPS >= 0) {

src/test/java/perf/ManualSmallTokenRead.java

@@ -0,0 +1,68 @@
+package perf;
+
+import com.fasterxml.jackson.core.*;
+
+/**
+ * Manually run micro-benchmark for checking performance of tokenizing
+ * simple tokens (false, true, null).
+ */
+public class ManualSmallTokenRead extends ParserTestBase
+{
+    protected final JsonFactory _factory;
+    
+    protected final byte[] _jsonBytes;
+    protected final char[] _jsonChars;
+    
+    private ManualSmallTokenRead(JsonFactory f, String json) throws Exception {
+        _factory = f;
+        _jsonChars = json.toCharArray();
+        _jsonBytes = json.getBytes("UTF-8");
+    }
+
+    public static void main(String[] args) throws Exception
+    {
+        if (args.length != 0) {
+            System.err.println("Usage: java ...");
+            System.exit(1);
+        }
+        final JsonFactory f = new JsonFactory();
+        final String jsonStr = aposToQuotes(
+"{'data':[true,false,null,false,null,true],'last':true}"
+                );
+        new ManualSmallTokenRead(f, jsonStr).test("char[]", "byte[]", jsonStr.length());
+    }
+
+    @Override
+    protected void testRead1(int reps) throws Exception
+    {
+        while (--reps >= 0) {
+            JsonParser p = _factory.createParser(_jsonChars);
+            _stream(p);
+            p.close();
+        }
+    }
+
+    @Override
+    protected void testRead2(int reps) throws Exception
+    {
+        while (--reps >= 0) {
+            JsonParser p = _factory.createParser(_jsonBytes);
+            _stream(p);
+            p.close();
+        }
+    }
+
+    private final void _stream(JsonParser p) throws Exception
+    {
+        JsonToken t;
+
+        while ((t = p.nextToken()) != null) {
+            // force decoding/reading of scalar values too (booleans are fine, nulls too)
+            if (t == JsonToken.VALUE_STRING) {
+                p.getText();
+            } else if (t == JsonToken.VALUE_NUMBER_INT) {
+                p.getLongValue();
+            }
+        }
+    }
+}

src/test/java/perf/ParserTestBase.java

@@ -83,4 +83,9 @@ protected long _testRead2(int reps) throws Exception {
     protected abstract void testRead1(int reps) throws Exception;
 
     protected abstract void testRead2(int reps) throws Exception;
+
+    protected static String aposToQuotes(String json) {
+        return json.replace("'", "\"");
+    }
 }
+