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fetcher.go
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/
fetcher.go
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package edgar
import (
"encoding/json"
"errors"
"io"
"io/ioutil"
)
type fetcher struct {
folders map[string]*company
}
// CompanyFolder creates a new folder and populates it with the filing filing
// links available for the list of filing types
func (f *fetcher) CompanyFolder(
ticker string,
fileTypes ...FilingType) (CompanyFolder, error) {
comp, ok := f.folders[ticker]
if !ok {
comp = newCompany(ticker)
if comp.cik == "" {
return nil, errors.New("Could not find the CIK for the given ticker")
}
f.folders[ticker] = comp
for _, t := range fileTypes {
comp.addFilingLinks(t, getFilingLinks(ticker, t))
}
}
return comp, nil
}
// CreateFolder Reads from the reader into a new company folder
func (f *fetcher) CreateFolder(
r io.Reader,
fileTypes ...FilingType) (CompanyFolder, error) {
b, err := ioutil.ReadAll(r)
if err != nil {
return nil, err
}
c := newCompany("")
err = json.Unmarshal(b, c)
if err != nil {
return nil, err
}
// Populate the CIK
c.cik = getCompanyCIK(c.Ticker())
if c.cik == "" {
return nil, errors.New("Could not find the CIK for the given ticker")
}
f.folders[c.Ticker()] = c
// Get all the latest links for all the filing types
for _, key := range fileTypes {
c.addFilingLinks(key, getFilingLinks(c.Ticker(), key))
}
return c, nil
}
// NewFilingFetcher creates a new empty filing fetcher
func NewFilingFetcher() FilingFetcher {
return &fetcher{folders: make(map[string]*company)}
}