实现缓存策略部分管理功能

internal/db/models/http_cache_policy_dao.go

@@ -1,9 +1,14 @@
 package models
 
 import (
+	"encoding/json"
+	"github.com/TeaOSLab/EdgeAPI/internal/errors"
+	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
+	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/shared"
 	_ "github.com/go-sql-driver/mysql"
 	"github.com/iwind/TeaGo/Tea"
 	"github.com/iwind/TeaGo/dbs"
+	"github.com/iwind/TeaGo/types"
 )
 
 const (
@@ -87,3 +92,144 @@ func (this *HTTPCachePolicyDAO) FindAllEnabledCachePolicies() (result []*HTTPCac
 		FindAll()
 	return
 }
+
+// 创建缓存策略
+func (this *HTTPCachePolicyDAO) CreateCachePolicy(isOn bool, name string, description string, capacityJSON []byte, maxKeys int64, maxSizeJSON []byte, storageType string, storageOptionsJSON []byte) (int64, error) {
+	op := NewHTTPCachePolicyOperator()
+	op.State = HTTPCachePolicyStateEnabled
+	op.IsOn = isOn
+	op.Name = name
+	op.Description = description
+	if len(capacityJSON) > 0 {
+		op.Capacity = capacityJSON
+	}
+	op.MaxKeys = maxKeys
+	if len(maxSizeJSON) > 0 {
+		op.MaxSize = maxSizeJSON
+	}
+	op.Type = storageType
+	if len(storageOptionsJSON) > 0 {
+		op.Options = storageOptionsJSON
+	}
+	_, err := this.Save(op)
+	if err != nil {
+		return 0, err
+	}
+	return types.Int64(op.Id), nil
+}
+
+// 修改缓存策略
+func (this *HTTPCachePolicyDAO) UpdateCachePolicy(policyId int64, isOn bool, name string, description string, capacityJSON []byte, maxKeys int64, maxSizeJSON []byte, storageType string, storageOptionsJSON []byte) error {
+	if policyId <= 0 {
+		return errors.New("invalid policyId")
+	}
+
+	op := NewHTTPCachePolicyOperator()
+	op.Id = policyId
+	op.IsOn = isOn
+	op.Name = name
+	op.Description = description
+	if len(capacityJSON) > 0 {
+		op.Capacity = capacityJSON
+	}
+	op.MaxKeys = maxKeys
+	if len(maxSizeJSON) > 0 {
+		op.MaxSize = maxSizeJSON
+	}
+	op.Type = storageType
+	if len(storageOptionsJSON) > 0 {
+		op.Options = storageOptionsJSON
+	}
+	_, err := this.Save(op)
+	return errors.Wrap(err)
+}
+
+// 组合配置
+func (this *HTTPCachePolicyDAO) ComposeCachePolicy(policyId int64) (*serverconfigs.HTTPCachePolicy, error) {
+	policy, err := this.FindEnabledHTTPCachePolicy(policyId)
+	if err != nil {
+		return nil, err
+	}
+	if policy == nil {
+		return nil, nil
+	}
+	config := &serverconfigs.HTTPCachePolicy{}
+	config.Id = int64(policy.Id)
+	config.IsOn = policy.IsOn == 1
+	config.Name = policy.Name
+	config.Description = policy.Description
+
+	// capacity
+	if IsNotNull(policy.Capacity) {
+		capacityConfig := &shared.SizeCapacity{}
+		err = json.Unmarshal([]byte(policy.Capacity), capacityConfig)
+		if err != nil {
+			return nil, err
+		}
+		config.Capacity = capacityConfig
+	}
+
+	config.MaxKeys = types.Int64(policy.MaxKeys)
+
+	// max size
+	if IsNotNull(policy.MaxSize) {
+		maxSizeConfig := &shared.SizeCapacity{}
+		err = json.Unmarshal([]byte(policy.MaxSize), maxSizeConfig)
+		if err != nil {
+			return nil, err
+		}
+		config.MaxSize = maxSizeConfig
+	}
+
+	config.Type = policy.Type
+
+	// options
+	if IsNotNull(policy.Options) {
+		m := map[string]interface{}{}
+		err = json.Unmarshal([]byte(policy.Options), &m)
+		if err != nil {
+			return nil, errors.Wrap(err)
+		}
+		config.Options = m
+	}
+
+	return config, nil
+}
+
+// 计算可用缓存策略数量
+func (this *HTTPCachePolicyDAO) CountAllEnabledHTTPCachePolicies() (int64, error) {
+	return this.Query().
+		State(HTTPCachePolicyStateEnabled).
+		Count()
+}
+
+// 列出单页的缓存策略
+func (this *HTTPCachePolicyDAO) ListEnabledHTTPCachePolicies(offset int64, size int64) ([]*serverconfigs.HTTPCachePolicy, error) {
+	ones, err := this.Query().
+		State(HTTPCachePolicyStateEnabled).
+		ResultPk().
+		Offset(offset).
+		Limit(size).
+		DescPk().
+		FindAll()
+	if err != nil {
+		return nil, errors.Wrap(err)
+	}
+	cachePolicyIds := []int64{}
+	for _, one := range ones {
+		cachePolicyIds = append(cachePolicyIds, int64(one.(*HTTPCachePolicy).Id))
+	}
+	if len(cachePolicyIds) == 0 {
+		return nil, nil
+	}
+
+	cachePolicies := []*serverconfigs.HTTPCachePolicy{}
+	for _, policyId := range cachePolicyIds {
+		cachePolicyConfig, err := this.ComposeCachePolicy(policyId)
+		if err != nil {
+			return nil, errors.Wrap(err)
+		}
+		cachePolicies = append(cachePolicies, cachePolicyConfig)
+	}
+	return cachePolicies, nil
+}