sqlite impl

server/app/config.go

@@ -15,7 +15,7 @@ type Config struct {
 	EnableRendering     bool             `json:"enablerendering"`
 	Webdev              bool             `json:"webdev"`
 	WebApi              *WebApiConfig    `json:"webapi"`
-	Layers              []layer.Layer    `json:"layers"`
+	Layers              []*layer.Layer    `json:"layers"`
 	RenderingFetchLimit int              `json:"renderingfetchlimit"`
 	RenderingJobs       int              `json:"renderingjobs"`
 	RenderingQueue      int              `json:"renderingqueue"`
@@ -69,8 +69,8 @@ func ParseConfig(filename string) (*Config, error) {
 		SecretKey:      RandStringRunes(16),
 	}
 
-	layers := []layer.Layer{
-		layer.Layer{
+	layers := []*layer.Layer{
+		&layer.Layer{
 			Id:   0,
 			Name: "Base",
 			From: -16,

server/coords/convert.go

@@ -7,6 +7,8 @@ const (
 	maxPositive         = modulo / 2
 	minValue            = -1 << (numBitsPerComponent - 1)
 	maxValue            = 1<<(numBitsPerComponent-1) - 1
+
+	MinPlainCoord	= -34351347711
 )
 
 func CoordToPlain(c *MapBlockCoords) int64 {

server/coords/convert_test.go

@@ -12,6 +12,16 @@ func init() {
 	log = logrus.WithFields(logrus.Fields{"prefix": "coords/convert_test"})
 }
 
+func TestMinCoord(t *testing.T){
+	c := NewMapBlockCoords(MinCoord, MinCoord, MinCoord)
+	pc := CoordToPlain(c)
+
+	log.WithFields(logrus.Fields{"coords": c, "plain": pc}).Info("TestMinCoord")
+	if pc != MinPlainCoord {
+		t.Fatal("no min match")
+	}
+}
+
 func testCoordConvert(t *testing.T, mb *MapBlockCoords) {
 	log.WithFields(logrus.Fields{"coords": mb}).Info("MapblockCoords")
 

server/db/accessor.go

@@ -14,6 +14,7 @@ type Block struct {
 
 type InitialBlocksResult struct {
 	List    []*Block
+	UnfilteredCount int
 	HasMore bool
 }
 

server/db/postgres/postgres.go

@@ -3,6 +3,8 @@ package postgres
 import (
 	"database/sql"
 	"mapserver/coords"
+	"mapserver/settings"
+	"mapserver/layer"
 	"mapserver/db"
 	"time"
 
@@ -68,7 +70,7 @@ func (this *PostgresAccessor) FindBlocksByMtime(gtmtime int64, limit int) ([]*db
 	return blocks, nil
 }
 
-func (this *PostgresAccessor) FindNextInitialBlocks(lastpos *coords.MapBlockCoords, limit int) (*db.InitialBlocksResult, error) {
+func (this *PostgresAccessor) FindNextInitialBlocks(s settings.Settings, layers []*layer.Layer, limit int) (*db.InitialBlocksResult, error) {
 	return nil, nil
 }
 

server/db/sqlite/initialblocks.go

@@ -5,39 +5,41 @@ import (
 	"mapserver/coords"
 	"mapserver/db"
 	"mapserver/settings"
+	"mapserver/layer"
+)
+
+const (
+	SETTING_LAST_POS            = "last_pos"
 )
 
 const getLastBlockQuery = `
 select pos,data,mtime
 from blocks b
 where b.mtime = 0
-and b.pos > ?
+and b.pos >= ?
 order by b.pos asc, b.mtime asc
 limit ?
 `
 
-func (this *Sqlite3Accessor) FindNextInitialBlocks(s settings.Settings, layers []layer.Layer, limit int) (*db.InitialBlocksResult, error) {
+func (this *Sqlite3Accessor) FindNextInitialBlocks(s settings.Settings, layers []*layer.Layer, limit int) (*db.InitialBlocksResult, error) {
 
 	result := &db.InitialBlocksResult{}
 
 	blocks := make([]*db.Block, 0)
 
-	lastx := s.GetInt(settings.SETTING_LASTX, coords.MinCoord-1)
-	lasty := s.GetInt(settings.SETTING_LASTY, coords.MinCoord-1)
-	lastz := s.GetInt(settings.SETTING_LASTZ, coords.MinCoord-1)
-	
-	lastcoords := coords.NewMapBlockCoords(lastx, lasty, lastz)
-	pc := coords.CoordToPlain(lastpos)
+	lastpos := s.GetInt64(SETTING_LAST_POS, coords.MinPlainCoord)
 
-	rows, err := this.db.Query(getLastBlockQuery, pc, limit)
+	rows, err := this.db.Query(getLastBlockQuery, lastpos, limit)
 	if err != nil {
 		return nil, err
 	}
 
 	defer rows.Close()
-	var newlastpos *coords.MapBlockCoords
 
 	for rows.Next() {
+		result.HasMore = true
+		result.UnfilteredCount++
+
 		var pos int64
 		var data []byte
 		var mtime int64
@@ -48,17 +50,22 @@ func (this *Sqlite3Accessor) FindNextInitialBlocks(s settings.Settings, layers [
 		}
 
 		mb := convertRows(pos, data, mtime)
-		newlastpos = mb.Pos
 
-		blocks = append(blocks, mb)
+		// new position
+		lastpos = pos
+
+		blockcoordy := mb.Pos.Y * 16
+		currentlayer := layer.FindLayerByY(layers, blockcoordy)
+
+		if currentlayer != nil {
+			blocks = append(blocks, mb)
+		}
 	}
 
 	result.List = blocks
 
 	//Save current positions of initial run
-	s.SetInt(settings.SETTING_LASTX, newlastpos.X)
-	s.SetInt(settings.SETTING_LASTY, newlastpos.Y)
-	s.SetInt(settings.SETTING_LASTZ, newlastpos.Z)
+	s.SetInt64(SETTING_LAST_POS, lastpos)
 
 	return result, nil
 }

server/layer/layer.go

@@ -6,3 +6,21 @@ type Layer struct {
 	To   int    `json:"to"`
 	From int    `json:"from"`
 }
+
+func FindLayerById(layers []*Layer, id int) *Layer {
+	for _, l := range layers {
+		if l.Id == id {
+			return l
+		}
+	}
+	return nil
+}
+
+func FindLayerByY(layers []*Layer, y int) *Layer {
+	for _, l := range layers {
+		if y >= l.From && y <= l.To {
+			return l
+		}
+	}
+	return nil
+}

server/mapblockaccessor/legacyblocks.go

@@ -4,6 +4,7 @@ import (
 	"mapserver/coords"
 	"mapserver/eventbus"
 	"mapserver/layer"
+	"mapserver/settings"
 	"mapserver/mapblockparser"
 
 	cache "github.com/patrickmn/go-cache"
@@ -12,13 +13,11 @@ import (
 
 type FindNextLegacyBlocksResult struct {
 	HasMore         bool
-	LastPos         *coords.MapBlockCoords
-	LastMtime       int64
 	List            []*mapblockparser.MapBlock
 	UnfilteredCount int
 }
 
-func (a *MapBlockAccessor) FindNextLegacyBlocks(lastpos *coords.MapBlockCoords, limit int, layerfilter []layer.Layer) (*FindNextLegacyBlocksResult, error) {
+func (a *MapBlockAccessor) FindNextLegacyBlocks(s settings.Settings, layers []layer.Layer, limit int) (*FindNextLegacyBlocksResult, error) {
 
 	fields := logrus.Fields{
 		"x":     lastpos.X,