v2 init commit

src/mod/database/database.go

@@ -0,0 +1,120 @@
+package database
+
+/*
+	ArOZ Online Database Access Module
+	author: tobychui
+
+	This is an improved Object oriented base solution to the original
+	aroz online database script.
+*/
+
+import (
+	"sync"
+)
+
+type Database struct {
+	Db       interface{} //This will be nil on openwrt and *bolt.DB in the rest of the systems
+	Tables   sync.Map
+	ReadOnly bool
+}
+
+func NewDatabase(dbfile string, readOnlyMode bool) (*Database, error) {
+	return newDatabase(dbfile, readOnlyMode)
+}
+
+/*
+	Create / Drop a table
+	Usage:
+	err := sysdb.NewTable("MyTable")
+	err := sysdb.DropTable("MyTable")
+*/
+
+func (d *Database) UpdateReadWriteMode(readOnly bool) {
+	d.ReadOnly = readOnly
+}
+
+//Dump the whole db into a log file
+func (d *Database) Dump(filename string) ([]string, error) {
+	return d.dump(filename)
+}
+
+//Create a new table
+func (d *Database) NewTable(tableName string) error {
+	return d.newTable(tableName)
+}
+
+//Check is table exists
+func (d *Database) TableExists(tableName string) bool {
+	return d.tableExists(tableName)
+}
+
+//Drop the given table
+func (d *Database) DropTable(tableName string) error {
+	return d.dropTable(tableName)
+}
+
+/*
+	Write to database with given tablename and key. Example Usage:
+	type demo struct{
+		content string
+	}
+	thisDemo := demo{
+		content: "Hello World",
+	}
+	err := sysdb.Write("MyTable", "username/message",thisDemo);
+*/
+func (d *Database) Write(tableName string, key string, value interface{}) error {
+	return d.write(tableName, key, value)
+}
+
+/*
+	Read from database and assign the content to a given datatype. Example Usage:
+
+	type demo struct{
+		content string
+	}
+	thisDemo := new(demo)
+	err := sysdb.Read("MyTable", "username/message",&thisDemo);
+*/
+
+func (d *Database) Read(tableName string, key string, assignee interface{}) error {
+	return d.read(tableName, key, assignee)
+}
+
+func (d *Database) KeyExists(tableName string, key string) bool {
+	return d.keyExists(tableName, key)
+}
+
+/*
+	Delete a value from the database table given tablename and key
+
+	err := sysdb.Delete("MyTable", "username/message");
+*/
+func (d *Database) Delete(tableName string, key string) error {
+	return d.delete(tableName, key)
+}
+
+/*
+	//List table example usage
+	//Assume the value is stored as a struct named "groupstruct"
+
+	entries, err := sysdb.ListTable("test")
+	if err != nil {
+		panic(err)
+	}
+	for _, keypairs := range entries{
+		log.Println(string(keypairs[0]))
+		group := new(groupstruct)
+		json.Unmarshal(keypairs[1], &group)
+		log.Println(group);
+	}
+
+*/
+
+func (d *Database) ListTable(tableName string) ([][][]byte, error) {
+	return d.listTable(tableName)
+}
+
+func (d *Database) Close() {
+	d.close()
+}