初始化项目

trunk/goutil/lz4Util/doc.go

@@ -0,0 +1,4 @@
+/*
+lz4压缩、解压缩相关的助手包
+*/
+package lz4Util

trunk/goutil/lz4Util/lz4.go

@@ -0,0 +1,36 @@
+package lz4Util
+
+import (
+	"fmt"
+	"github.com/bkaradzic/go-lz4"
+)
+
+// 压缩
+// 		data：待压缩数据
+// 返回值：
+// 		压缩后数据
+// 		对应的错误
+func Compress(data []byte)([]byte, error) {
+	compressed, err := lz4.Encode(nil, data)
+	if err != nil {
+		fmt.Println("Failed to encode:", err)
+		return nil,err
+	}
+
+	return compressed,nil
+}
+
+// 解压缩
+// 		data:待解压缩数据
+// 返回值：
+// 		解压缩后数据
+// 		对应的错误
+func Decompress(data []byte) ([]byte, error){
+	decompressed, err := lz4.Decode(nil, data)
+	if err != nil {
+		fmt.Println("Failed to decode:", err)
+		return nil,err
+	}
+
+	return decompressed,nil
+}

trunk/goutil/lz4Util/lz4_test.go

@@ -0,0 +1,65 @@
+package lz4Util
+
+import (
+	"fmt"
+	"strings"
+	"testing"
+)
+
+var (
+	InitString    = `{"Code":4,"Message":"IPNotAuthorized","Data":null}`
+	CompressBytes []byte
+)
+
+//正确性测试
+func TestCompress(t *testing.T){
+	s := "hello world"
+	repeatCount:= 1000
+	toCompress := []byte(strings.Repeat(s, repeatCount))
+	compressed,err := Compress(toCompress)
+	if err!=nil{
+		fmt.Println(err)
+	}
+	fmt.Println("compressed Data:", string(compressed))
+
+	//decompress
+	decompressed,err := Decompress(compressed)
+	if err!=nil{
+		fmt.Println(err)
+	}
+
+	if strings.Repeat(s, repeatCount)!=string(decompressed){
+		fmt.Println("有问题")
+	}else{
+		fmt.Println("没问题")
+	}
+
+	fmt.Println("\ndecompressed Data:", string(decompressed))
+}
+
+//BenchmarkCompress-12    	   28647	     37948 ns/op
+func BenchmarkCompress(b *testing.B) {
+	toCompress := []byte(strings.Repeat(InitString, 100))
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		_,err := Compress(toCompress)
+		if err!=nil{
+			b.Log(err)
+		}
+	}
+	b.StopTimer()
+}
+
+//BenchmarkDeCompress-12    	  267382	      4127 ns/op
+func BenchmarkDeCompress(b *testing.B) {
+	toCompress := []byte(strings.Repeat(InitString, 100))
+	compressedData,_ := Compress(toCompress)
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		_,err := Decompress(compressedData)
+		if err!=nil{
+			b.Log(err)
+		}
+	}
+	b.StopTimer()
+}