func (this *ProcChainBuilder) Build(params map[string]string) (*proc.ProcessorChain, *buildError) {
procChain := &proc.ProcessorChain{Chain: make([]proc.ImageProcessor, 0, 10)}
sourceType, channel, path := ParseUri(params[":1"])
//_, channel, _ := ParseUri(params[":1"])
sequences, e := data.GetSequenceofoperation(channel)
if e != nil {
return nil, &buildError{e, "UrlSequenceCmdError"}
}
for _, t := range sequences {
switch t {
case CmdStrip:
stripProcessor, e := this.getStripProcessor(channel, params)
if e != nil {
return nil, &buildError{e, "UrlStripCmdError"}
}
procChain.Chain = append(procChain.Chain, stripProcessor)
log.Debug("add strip processor")
case CmdResize:
resizeProcessor, e := this.getResizeProcessor(channel, params)
if e != nil {
return nil, &buildError{e, "UrlResizeCmdError"}
}
procChain.Chain = append(procChain.Chain, resizeProcessor)
log.Debug("add resize processor")
case CmdQuality:
qualityProcessor, e := this.getQualityProcessor(channel, params)
if e != nil {
return nil, &buildError{e, "UrlQualityCmdError"}
}
if qualityProcessor != nil {
procChain.Chain = append(procChain.Chain, qualityProcessor)
log.Debug("add quality processor")
}
case CmdRotate:
rotateProcessor, e := this.getRotateProcessor(channel, params)
if e != nil {
return nil, &buildError{e, "UrlRotateCmdError"}
}
if rotateProcessor != nil {
procChain.Chain = append(procChain.Chain, rotateProcessor)
log.Debug("add rotate processor")
}
case CmdWaterMark:
waterMarkProcessors, e := this.getWaterMarkProcessors(sourceType, channel, path, params)
if e != nil {
return nil, &buildError{e, "UrlWaterMarkCmdError"}
}
if waterMarkProcessors != nil {
for _, p := range waterMarkProcessors {
if p != nil {
procChain.Chain = append(procChain.Chain, p)
}
}
}
case CmdFormat:
formatProcessor, e := this.getFormatProcessor(channel, params)
if e != nil {
return nil, &buildError{e, "UrlFormatCmdError"}
}
if formatProcessor != nil {
procChain.Chain = append(procChain.Chain, formatProcessor)
log.Debug("add format processor")
}
case CmdDigitalWatermark:
dwmProcessor, e := this.getDigitalWatermarkProcessor(channel, params)
if e != nil {
return nil, &buildError{e, "UrlDigitalWatermarkCmdError"}
}
if dwmProcessor != nil {
procChain.Chain = append(procChain.Chain, dwmProcessor)
log.Debug("add digital watermark processor")
}
}
}
return procChain, nil
}
func (this *ProcChainBuilder) Build(params map[string]string) (*proc.ProcessorChain, error) {
procChain := &proc.ProcessorChain{Chain: make([]proc.ImageProcessor, 0, 5)}
sourceType, channel, path := ParseUri(params[":1"])
sequences, e := data.GetSequenceofoperation(channel)
if e != nil {
return nil, e
}
for _, t := range sequences {
switch t {
case "s":
stripProcessor, e := this.getStripProcessor(channel, params)
if e != nil {
return nil, e
}
procChain.Chain = append(procChain.Chain, stripProcessor)
l4g.Debug("add strip processor")
case "resize":
resizeProcessor, e := this.getResizeProcessor(channel, params)
if e != nil {
return nil, e
}
procChain.Chain = append(procChain.Chain, resizeProcessor)
l4g.Debug("add resize processor")
case "q":
qualityProcessor, e := this.getQualityProcessor(channel, params)
if e != nil {
return nil, e
}
if qualityProcessor != nil {
procChain.Chain = append(procChain.Chain, qualityProcessor)
l4g.Debug("add quality processor")
}
case "rotate":
rotateProcessor, e := this.getRotateProcessor(channel, params)
if e != nil {
return nil, e
}
if rotateProcessor != nil {
procChain.Chain = append(procChain.Chain, rotateProcessor)
l4g.Debug("add rotate processor")
}
case "m":
waterMarkProcessors, e := this.getWaterMarkProcessors(sourceType, channel, path, params)
if e != nil {
return nil, e
}
if waterMarkProcessors != nil {
for _, p := range waterMarkProcessors {
if p != nil {
procChain.Chain = append(procChain.Chain, p)
}
}
}
case "f":
formatProcessor, e := this.getFormatProcessor(channel, params)
if e != nil {
return nil, e
}
if formatProcessor != nil {
procChain.Chain = append(procChain.Chain, formatProcessor)
l4g.Debug("add format processor")
}
}
}
return procChain, nil
}