PowerBuilder

Unzip Files Matching a Pattern (such as *.xml)

See more Zip Examples

Example code to unzip Files Matching a Pattern (such as *.xml) PowerBuilder

integer li_rc
long li_Success
oleobject loo_Http
oleobject loo_Zip
string ls_ZipContentsXml
long li_Count

li_Success = 0

//  This example works with the .zip located at http://www.example-code.com/data/test.zip

//  This example assumes the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

//  First, let's download the .zip
loo_Http = create oleobject
li_rc = loo_Http.ConnectToNewObject("Chilkat.Http")
if li_rc < 0 then
    destroy loo_Http
    MessageBox("Error","Connecting to COM object failed")
    return
end if
li_Success = loo_Http.Download("http://www.example-code.com/data/test.zip","qa_test/test.zip")
if li_Success <> 1 then
    Write-Debug loo_Http.LastErrorText
    destroy loo_Http
    return
end if

loo_Zip = create oleobject
li_rc = loo_Zip.ConnectToNewObject("Chilkat.Zip")

li_Success = loo_Zip.OpenZip("qa_test/test.zip")
if li_Success <> 1 then
    Write-Debug loo_Zip.LastErrorText
    destroy loo_Http
    destroy loo_Zip
    return
end if

//  Show what's in the .zip by getting the directory as XML.
ls_ZipContentsXml = loo_Zip.GetDirectoryAsXML()
if loo_Zip.LastMethodSuccess <> 1 then
    Write-Debug loo_Zip.LastErrorText
    destroy loo_Http
    destroy loo_Zip
    return
end if

Write-Debug ls_ZipContentsXml

//  In this case, the contents of our .zip look like this:
//  <?xml version="1.0" encoding="utf-8" ?>
//  <zip_contents>
//      <dir name="test">
//          <dir name="abc">
//              <dir name="123">
//                  <file>ecc_public.pem</file>
//                  <file>starfish.jpg</file>
//              </dir>
//              <file>comodo-certificates.pem</file>
//              <file>pigs.xml</file>
//          </dir>
//          <file>COMODORSACertificationAuthority.crt</file>
//          <file>hamlet.xml</file>
//      </dir>
//  </zip_contents>

//  ------------------------------------------------------------------------
//  If we wish to unzip only .xml files, use "*.xml" for the pattern\
//  Unzip to the "qa_output" directory relative to our current working directory.
//  (You may unzip to an absolute path by passing an absolute path, such as "/someDir" or
//  "C:/someDir", etc.)
//  This will unzip only the .xml files.  The relative directory structure within
//  the .zip will be created in the local filesystem under the unzip directory
//  path passed in the first argument, which in this case is "qa_output".
li_Count = loo_Zip.UnzipMatching("qa_output","*.xml",1)
if li_Count < 0 then
    Write-Debug loo_Zip.LastErrorText
    destroy loo_Http
    destroy loo_Zip
    return
end if

Write-Debug "unzipped " + string(li_Count) + " matching file(s)."

//  ------------------------------------------------------------------------
//  If we wish to unzip only files under the "123" directory, we can do this:
li_Count = loo_Zip.UnzipMatching("qa_output2","*/123/*",1)
if li_Count < 0 then
    Write-Debug loo_Zip.LastErrorText
    destroy loo_Http
    destroy loo_Zip
    return
end if

Write-Debug "unzipped " + string(li_Count) + " matching file(s)."

//  ------------------------------------------------------------------------
//  If no asterisk character is used, then the match must be exact.
//  For example, to unzip "test/hamlet.xml" we must pass the exact path
//  as it is in the .zip.  We cannot just pass "hamlet.xml".
li_Count = loo_Zip.UnzipMatching("qa_output3","test/hamlet.xml",1)
if li_Count < 0 then
    Write-Debug loo_Zip.LastErrorText
    destroy loo_Http
    destroy loo_Zip
    return
end if

Write-Debug "unzipped " + string(li_Count) + " matching file(s)."

//  ------------------------------------------------------------------------
//  If we want to unzip any file named "hamlet.xml" found in any sub-directory...
li_Count = loo_Zip.UnzipMatching("qa_output4","*/hamlet.xml",1)
if li_Count < 0 then
    Write-Debug loo_Zip.LastErrorText
    destroy loo_Http
    destroy loo_Zip
    return
end if

Write-Debug "unzipped " + string(li_Count) + " matching file(s)."


destroy loo_Http
destroy loo_Zip