diff --git a/meta/classes/distrodata.bbclass b/meta/classes/distrodata.bbclass
new file mode 100644
index 0000000..4168e43
--- /dev/null
+++ b/meta/classes/distrodata.bbclass
@@ -0,0 +1,474 @@
+include conf/distro/include/package_regex.inc
+include conf/distro/include/upstream_tracking.inc
+include conf/distro/include/distro_alias.inc
+include conf/distro/include/maintainers.inc
+
+addhandler distro_eventhandler
+distro_eventhandler[eventmask] = "bb.event.BuildStarted"
+python distro_eventhandler() {
+    import oe.distro_check as dc
+    import csv
+    logfile = dc.create_log_file(e.data, "distrodata.csv")
+
+    lf = bb.utils.lockfile("%s.lock" % logfile)
+    with open(logfile, "a") as f:
+        writer = csv.writer(f)
+        writer.writerow(['Package', 'Description', 'Owner', 'License', 
+            'VerMatch', 'Version', 'Upstream', 'Reason', 'Recipe Status',
+            'Distro 1', 'Distro 2', 'Distro 3'])
+        f.close()
+    bb.utils.unlockfile(lf)
+
+    return
+}
+
+addtask distrodata_np
+do_distrodata_np[nostamp] = "1"
+python do_distrodata_np() {
+        localdata = bb.data.createCopy(d)
+        pn = d.getVar("PN", True)
+        bb.note("Package Name: %s" % pn)
+
+        import oe.distro_check as dist_check
+        tmpdir = d.getVar('TMPDIR', True)
+        distro_check_dir = os.path.join(tmpdir, "distro_check")
+        datetime = localdata.getVar('DATETIME', True)
+        dist_check.update_distro_data(distro_check_dir, datetime)
+
+        if pn.find("-native") != -1:
+            pnstripped = pn.split("-native")
+            bb.note("Native Split: %s" % pnstripped)
+            localdata.setVar('OVERRIDES', "pn-" + pnstripped[0] + ":" + d.getVar('OVERRIDES', True))
+            bb.data.update_data(localdata)
+
+        if pn.find("-cross") != -1:
+            pnstripped = pn.split("-cross")
+            bb.note("cross Split: %s" % pnstripped)
+            localdata.setVar('OVERRIDES', "pn-" + pnstripped[0] + ":" + d.getVar('OVERRIDES', True))
+            bb.data.update_data(localdata)
+
+        if pn.find("-crosssdk") != -1:
+            pnstripped = pn.split("-crosssdk")
+            bb.note("cross Split: %s" % pnstripped)
+            localdata.setVar('OVERRIDES', "pn-" + pnstripped[0] + ":" + d.getVar('OVERRIDES', True))
+            bb.data.update_data(localdata)
+
+        if pn.startswith("nativesdk-"):
+            pnstripped = pn.replace("nativesdk-", "")
+            bb.note("NativeSDK Split: %s" % pnstripped)
+            localdata.setVar('OVERRIDES', "pn-" + pnstripped + ":" + d.getVar('OVERRIDES', True))
+            bb.data.update_data(localdata)
+
+
+        if pn.find("-initial") != -1:
+            pnstripped = pn.split("-initial")
+            bb.note("initial Split: %s" % pnstripped)
+            localdata.setVar('OVERRIDES', "pn-" + pnstripped[0] + ":" + d.getVar('OVERRIDES', True))
+            bb.data.update_data(localdata)
+
+        """generate package information from .bb file"""
+        pname = localdata.getVar('PN', True)
+        pcurver = localdata.getVar('PV', True)
+        pdesc = localdata.getVar('DESCRIPTION', True)
+        if pdesc is not None:
+                pdesc = pdesc.replace(',','')
+                pdesc = pdesc.replace('\n','')
+
+        pgrp = localdata.getVar('SECTION', True)
+        plicense = localdata.getVar('LICENSE', True).replace(',','_')
+
+        rstatus = localdata.getVar('RECIPE_COLOR', True)
+        if rstatus is not None:
+                rstatus = rstatus.replace(',','')
+
+        pupver = localdata.getVar('RECIPE_UPSTREAM_VERSION', True)
+        if pcurver == pupver:
+                vermatch="1"
+        else:
+                vermatch="0"
+        noupdate_reason = localdata.getVar('RECIPE_NO_UPDATE_REASON', True)
+        if noupdate_reason is None:
+                noupdate="0"
+        else:
+                noupdate="1"
+                noupdate_reason = noupdate_reason.replace(',','')
+
+        maintainer = localdata.getVar('RECIPE_MAINTAINER', True)
+        rlrd = localdata.getVar('RECIPE_UPSTREAM_DATE', True)
+        result = dist_check.compare_in_distro_packages_list(distro_check_dir, localdata)
+
+        bb.note("DISTRO: %s,%s,%s,%s,%s,%s,%s,%s,%s\n" % \
+                  (pname, pdesc, maintainer, plicense, vermatch, pcurver, pupver, noupdate_reason, rstatus))
+        line = pn
+        for i in result:
+            line = line + "," + i
+        bb.note("%s\n" % line)
+}
+
+addtask distrodata
+do_distrodata[nostamp] = "1"
+python do_distrodata() {
+        import csv
+        logpath = d.getVar('LOG_DIR', True)
+        bb.utils.mkdirhier(logpath)
+        logfile = os.path.join(logpath, "distrodata.csv")
+
+        import oe.distro_check as dist_check
+        localdata = bb.data.createCopy(d)
+        tmpdir = d.getVar('TMPDIR', True)
+        distro_check_dir = os.path.join(tmpdir, "distro_check")
+        datetime = localdata.getVar('DATETIME', True)
+        dist_check.update_distro_data(distro_check_dir, datetime)
+
+        pn = d.getVar("PN", True)
+        bb.note("Package Name: %s" % pn)
+
+        if pn.find("-native") != -1:
+            pnstripped = pn.split("-native")
+            bb.note("Native Split: %s" % pnstripped)
+            localdata.setVar('OVERRIDES', "pn-" + pnstripped[0] + ":" + d.getVar('OVERRIDES', True))
+            bb.data.update_data(localdata)
+
+        if pn.startswith("nativesdk-"):
+            pnstripped = pn.replace("nativesdk-", "")
+            bb.note("NativeSDK Split: %s" % pnstripped)
+            localdata.setVar('OVERRIDES', "pn-" + pnstripped + ":" + d.getVar('OVERRIDES', True))
+            bb.data.update_data(localdata)
+
+        if pn.find("-cross") != -1:
+            pnstripped = pn.split("-cross")
+            bb.note("cross Split: %s" % pnstripped)
+            localdata.setVar('OVERRIDES', "pn-" + pnstripped[0] + ":" + d.getVar('OVERRIDES', True))
+            bb.data.update_data(localdata)
+
+        if pn.find("-crosssdk") != -1:
+            pnstripped = pn.split("-crosssdk")
+            bb.note("cross Split: %s" % pnstripped)
+            localdata.setVar('OVERRIDES', "pn-" + pnstripped[0] + ":" + d.getVar('OVERRIDES', True))
+            bb.data.update_data(localdata)
+
+        if pn.find("-initial") != -1:
+            pnstripped = pn.split("-initial")
+            bb.note("initial Split: %s" % pnstripped)
+            localdata.setVar('OVERRIDES', "pn-" + pnstripped[0] + ":" + d.getVar('OVERRIDES', True))
+            bb.data.update_data(localdata)
+
+        """generate package information from .bb file"""
+        pname = localdata.getVar('PN', True)
+        pcurver = localdata.getVar('PV', True)
+        pdesc = localdata.getVar('DESCRIPTION', True)
+        if pdesc is not None:
+                pdesc = pdesc.replace(',','')
+                pdesc = pdesc.replace('\n','')
+
+        pgrp = localdata.getVar('SECTION', True)
+        plicense = localdata.getVar('LICENSE', True).replace(',','_')
+
+        rstatus = localdata.getVar('RECIPE_COLOR', True)
+        if rstatus is not None:
+                rstatus = rstatus.replace(',','')
+
+        pupver = localdata.getVar('RECIPE_UPSTREAM_VERSION', True)
+        if pcurver == pupver:
+                vermatch="1"
+        else:
+                vermatch="0"
+
+        noupdate_reason = localdata.getVar('RECIPE_NO_UPDATE_REASON', True)
+        if noupdate_reason is None:
+                noupdate="0"
+        else:
+                noupdate="1"
+                noupdate_reason = noupdate_reason.replace(',','')
+
+        maintainer = localdata.getVar('RECIPE_MAINTAINER', True)
+        rlrd = localdata.getVar('RECIPE_UPSTREAM_DATE', True)
+        # do the comparison
+        result = dist_check.compare_in_distro_packages_list(distro_check_dir, localdata)
+
+        lf = bb.utils.lockfile("%s.lock" % logfile)
+        with open(logfile, "a") as f:
+            row = [pname, pdesc, maintainer, plicense, vermatch, pcurver, pupver, noupdate_reason, rstatus]
+            row.extend(result)
+
+            writer = csv.writer(f)
+            writer.writerow(row)
+            f.close()
+        bb.utils.unlockfile(lf)
+}
+
+addtask distrodataall after do_distrodata
+do_distrodataall[recrdeptask] = "do_distrodataall do_distrodata"
+do_distrodataall[recideptask] = "do_${BB_DEFAULT_TASK}"
+do_distrodataall[nostamp] = "1"
+do_distrodataall() {
+        :
+}
+
+addhandler checkpkg_eventhandler
+checkpkg_eventhandler[eventmask] = "bb.event.BuildStarted bb.event.BuildCompleted"
+python checkpkg_eventhandler() {
+    import csv
+
+    def parse_csv_file(filename):
+        package_dict = {}
+
+        with open(filename, "r") as f:
+            reader = csv.reader(f, delimiter='\t')
+            for row in reader:
+                pn = row[0]
+
+                if reader.line_num == 1:
+                    header = row
+                    continue
+
+                if not pn in package_dict.keys():
+                    package_dict[pn] = row
+            f.close()
+
+        with open(filename, "w") as f:
+            writer = csv.writer(f, delimiter='\t')
+            writer.writerow(header)
+            for pn in package_dict.keys():
+                writer.writerow(package_dict[pn])
+            f.close()
+
+        del package_dict
+
+    if bb.event.getName(e) == "BuildStarted":
+        import oe.distro_check as dc
+        logfile = dc.create_log_file(e.data, "checkpkg.csv")
+
+        lf = bb.utils.lockfile("%s.lock" % logfile)
+        with open(logfile, "a") as f:
+            writer = csv.writer(f, delimiter='\t')
+            headers = ['Package', 'Version', 'Upver', 'License', 'Section',
+                'Home', 'Release', 'Depends', 'BugTracker', 'PE', 'Description',
+                'Status', 'Tracking', 'URI', 'MAINTAINER', 'NoUpReason']
+            writer.writerow(headers)
+            f.close()
+        bb.utils.unlockfile(lf)
+    elif bb.event.getName(e) == "BuildCompleted":
+        import os
+        filename = "tmp/log/checkpkg.csv"
+        if os.path.isfile(filename):
+            lf = bb.utils.lockfile("%s.lock"%filename)
+            parse_csv_file(filename)
+            bb.utils.unlockfile(lf)
+    return
+}
+
+addtask checkpkg
+do_checkpkg[nostamp] = "1"
+python do_checkpkg() {
+        localdata = bb.data.createCopy(d)
+        import csv
+        import re
+        import tempfile
+        import subprocess
+        import oe.recipeutils
+        from bb.utils import vercmp_string
+        from bb.fetch2 import FetchError, NoMethodError, decodeurl
+
+        """first check whether a uri is provided"""
+        src_uri = d.getVar('SRC_URI', True)
+        if not src_uri:
+                return
+        uri_type, _, _, _, _, _ = decodeurl(src_uri)
+
+        """initialize log files."""
+        logpath = d.getVar('LOG_DIR', True)
+        bb.utils.mkdirhier(logpath)
+        logfile = os.path.join(logpath, "checkpkg.csv")
+
+        """generate package information from .bb file"""
+        pname = d.getVar('PN', True)
+
+        if pname.find("-native") != -1:
+            if d.getVar('BBCLASSEXTEND', True):
+                    return
+            pnstripped = pname.split("-native")
+            bb.note("Native Split: %s" % pnstripped)
+            localdata.setVar('OVERRIDES', "pn-" + pnstripped[0] + ":" + d.getVar('OVERRIDES', True))
+            bb.data.update_data(localdata)
+
+        if pname.startswith("nativesdk-"):
+            if d.getVar('BBCLASSEXTEND', True):
+                    return
+            pnstripped = pname.replace("nativesdk-", "")
+            bb.note("NativeSDK Split: %s" % pnstripped)
+            localdata.setVar('OVERRIDES', "pn-" + pnstripped + ":" + d.getVar('OVERRIDES', True))
+            bb.data.update_data(localdata)
+
+        if pname.find("-cross") != -1:
+            pnstripped = pname.split("-cross")
+            bb.note("cross Split: %s" % pnstripped)
+            localdata.setVar('OVERRIDES', "pn-" + pnstripped[0] + ":" + d.getVar('OVERRIDES', True))
+            bb.data.update_data(localdata)
+
+        if pname.find("-initial") != -1:
+            pnstripped = pname.split("-initial")
+            bb.note("initial Split: %s" % pnstripped)
+            localdata.setVar('OVERRIDES', "pn-" + pnstripped[0] + ":" + d.getVar('OVERRIDES', True))
+            bb.data.update_data(localdata)
+
+        pdesc = localdata.getVar('DESCRIPTION', True)
+        pgrp = localdata.getVar('SECTION', True)
+        pversion = localdata.getVar('PV', True)
+        plicense = localdata.getVar('LICENSE', True)
+        psection = localdata.getVar('SECTION', True)
+        phome = localdata.getVar('HOMEPAGE', True)
+        prelease = localdata.getVar('PR', True)
+        pdepends = localdata.getVar('DEPENDS', True)
+        pbugtracker = localdata.getVar('BUGTRACKER', True)
+        ppe = localdata.getVar('PE', True)
+        psrcuri = localdata.getVar('SRC_URI', True)
+        maintainer = localdata.getVar('RECIPE_MAINTAINER', True)
+
+        """ Get upstream version version """
+        pupver = ""
+        pstatus = ""
+
+        try:
+            uv = oe.recipeutils.get_recipe_upstream_version(localdata)
+
+            pupver = uv['version']
+        except Exception as e:
+            if e is FetchError:
+                pstatus = "ErrAccess"
+            elif e is NoMethodError:
+                pstatus = "ErrUnsupportedProto"
+            else:
+                pstatus = "ErrUnknown"
+
+        """Set upstream version status"""
+        if not pupver:
+            pupver = "N/A"
+        else:
+            pv, _, _ = oe.recipeutils.get_recipe_pv_without_srcpv(pversion, uri_type)
+            upv, _, _ = oe.recipeutils.get_recipe_pv_without_srcpv(pupver, uri_type)
+
+            cmp = vercmp_string(pv, upv)
+            if cmp == -1:
+                pstatus = "UPDATE"
+            elif cmp == 0:
+                pstatus = "MATCH"
+
+        psrcuri = psrcuri.split()[0]
+        pdepends = "".join(pdepends.split("\t"))
+        pdesc = "".join(pdesc.split("\t"))
+        no_upgr_reason = d.getVar('RECIPE_NO_UPDATE_REASON', True)
+        lf = bb.utils.lockfile("%s.lock" % logfile)
+        with open(logfile, "a") as f:
+            writer = csv.writer(f, delimiter='\t')
+            writer.writerow([pname, pversion, pupver, plicense, psection, phome, 
+                prelease, pdepends, pbugtracker, ppe, pdesc, pstatus, pupver,
+                psrcuri, maintainer, no_upgr_reason])
+            f.close()
+        bb.utils.unlockfile(lf)
+}
+
+addtask checkpkgall after do_checkpkg
+do_checkpkgall[recrdeptask] = "do_checkpkgall do_checkpkg"
+do_checkpkgall[recideptask] = "do_${BB_DEFAULT_TASK}"
+do_checkpkgall[nostamp] = "1"
+do_checkpkgall() {
+        :
+}
+
+addhandler distro_check_eventhandler
+distro_check_eventhandler[eventmask] = "bb.event.BuildStarted"
+python distro_check_eventhandler() {
+    """initialize log files."""
+    import oe.distro_check as dc
+    result_file = dc.create_log_file(e.data, "distrocheck.csv")
+    return
+}
+
+addtask distro_check
+do_distro_check[nostamp] = "1"
+python do_distro_check() {
+    """checks if the package is present in other public Linux distros"""
+    import oe.distro_check as dc
+    import shutil
+    if bb.data.inherits_class('native', d) or bb.data.inherits_class('cross', d) or bb.data.inherits_class('sdk', d) or bb.data.inherits_class('crosssdk', d) or bb.data.inherits_class('nativesdk',d):
+        return
+
+    localdata = bb.data.createCopy(d)
+    bb.data.update_data(localdata)
+    tmpdir = d.getVar('TMPDIR', True)
+    distro_check_dir = os.path.join(tmpdir, "distro_check")
+    logpath = d.getVar('LOG_DIR', True)
+    bb.utils.mkdirhier(logpath)
+    result_file = os.path.join(logpath, "distrocheck.csv")
+    datetime = localdata.getVar('DATETIME', True)
+    dc.update_distro_data(distro_check_dir, datetime)
+
+    # do the comparison
+    result = dc.compare_in_distro_packages_list(distro_check_dir, d)
+
+    # save the results
+    dc.save_distro_check_result(result, datetime, result_file, d)
+}
+
+addtask distro_checkall after do_distro_check
+do_distro_checkall[recrdeptask] = "do_distro_checkall do_distro_check"
+do_distro_checkall[recideptask] = "do_${BB_DEFAULT_TASK}"
+do_distro_checkall[nostamp] = "1"
+do_distro_checkall() {
+        :
+}
+#
+#Check Missing License Text.
+#Use this task to generate the missing license text data for pkg-report system,
+#then we can search those recipes which license text isn't exsit in common-licenses directory
+#
+addhandler checklicense_eventhandler
+checklicense_eventhandler[eventmask] = "bb.event.BuildStarted"
+python checklicense_eventhandler() {
+    """initialize log files."""
+    import csv
+    import oe.distro_check as dc
+    logfile = dc.create_log_file(e.data, "missinglicense.csv")
+    lf = bb.utils.lockfile("%s.lock" % logfile)
+    with open(logfile, "a") as f:
+        writer = csv.writer(f, delimiter='\t')
+        writer.writerow(['Package', 'License', 'MissingLicense'])
+        f.close()
+    bb.utils.unlockfile(lf)
+    return
+}
+
+addtask checklicense
+do_checklicense[nostamp] = "1"
+python do_checklicense() {
+    import csv
+    import shutil
+    logpath = d.getVar('LOG_DIR', True)
+    bb.utils.mkdirhier(logpath)
+    pn = d.getVar('PN', True)
+    logfile = os.path.join(logpath, "missinglicense.csv")
+    generic_directory = d.getVar('COMMON_LICENSE_DIR', True)
+    license_types = d.getVar('LICENSE', True)
+    for license_type in ((license_types.replace('+', '').replace('|', '&')
+                          .replace('(', '').replace(')', '').replace(';', '')
+                          .replace(',', '').replace(" ", "").split("&"))):
+        if not os.path.isfile(os.path.join(generic_directory, license_type)):
+            lf = bb.utils.lockfile("%s.lock" % logfile)
+            with open(logfile, "a") as f:
+                writer = csv.writer(f, delimiter='\t')
+                writer.writerow([pn, license_types, license_type])
+                f.close()
+            bb.utils.unlockfile(lf)
+    return
+}
+
+addtask checklicenseall after do_checklicense
+do_checklicenseall[recrdeptask] = "do_checklicenseall do_checklicense"
+do_checklicenseall[recideptask] = "do_${BB_DEFAULT_TASK}"
+do_checklicenseall[nostamp] = "1"
+do_checklicenseall() {
+        :
+}
+
+