add unsafe generator

Author: Apache9

pom.xml

@@ -148,10 +148,10 @@
 			<plugin>
 				<groupId>org.xolstice.maven.plugins</groupId>
 				<artifactId>protobuf-maven-plugin</artifactId>
-				<version>0.5.0</version>
+				<version>0.6.1</version>
 				<extensions>true</extensions>
 				<configuration>
-					<protocArtifact>com.google.protobuf:protoc:2.5.0:exe:${os.detected.classifier}</protocArtifact>
+					<protocArtifact>com.google.protobuf:protoc:${protoc.version}:exe:${os.detected.classifier}</protocArtifact>
 				</configuration>
 				<executions>
 					<execution>

src/main/java/com/github/apache9/unsafe/Generator.java

@@ -0,0 +1,43 @@
+package com.github.apache9.unsafe;
+
+import java.io.PrintWriter;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+public class Generator {
+
+    private static final Pattern METHOD = Pattern.compile("public (final )?(native )?(\\S+)\\s+(\\S+)\\((.*)\\)");
+
+    public static void main(String[] args) throws Exception {
+        try (PrintWriter pw = new PrintWriter("/home/zhangduo/hbase/HBaseUnsafe0")) {
+            for (String line : Files.readAllLines(Paths.get("/home/zhangduo/hbase/all_methods"))) {
+                Matcher m = METHOD.matcher(line);
+                if (m.find()) {
+                    String returnType = m.group(3);
+                    String name = m.group(4);
+                    String params = m.group(5);
+                    pw.println("public static " + returnType + " " + name + "(" + params + ") {");
+                    if (!returnType.equals("void")) {
+                        pw.print("return ");
+                    }
+                    pw.print("HBaseUnsafe0." + name + "(");
+                    if (params.trim().length() > 0) {
+                        String[] typeAndNames = params.split(",\\s*");
+                        String str = Stream.of(typeAndNames).map(typeAndName -> typeAndName.split("\\s+")[1])
+                                .collect(Collectors.joining(", "));
+                        pw.print(str);
+                    }
+                    pw.println(");");
+                    pw.println("}");
+                    pw.println();
+                } else {
+                    System.out.println("error: " + line);
+                }
+            }
+        }
+    }
+}