Improve setKeyManager & setTrustManager

Change-Id: I14b1bd6872e40496ce233ec4974ad9e5fd92d949
Signed-off-by: Chengkai Yan <martin.c.yan@est.tech>
Issue-ID: DCAEGEN2-867

4 files changed, 32 insertions, 5 deletions

diff --git a/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/FTPSClientWrapper.java b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/FTPSClientWrapper.java
index 77048042..2ccf1bab 100644
--- a/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/FTPSClientWrapper.java
+++ b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/FTPSClientWrapper.java
@@ -89,4 +89,8 @@ public class FTPSClientWrapper implements IFTPSClient {
         return ftpsClient.retrieveFile(remote, local);
     }
 
+    @Override
+    public void setTimeout(Integer t) {
+        this.ftpsClient.setDefaultTimeout(t);
+    }
 }
diff --git a/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/FileCollectResult.java b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/FileCollectResult.java
index 6cd048ac..c5962172 100644
--- a/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/FileCollectResult.java
+++ b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/FileCollectResult.java
@@ -36,7 +36,10 @@ public class FileCollectResult {
     }
 
     public String getErrorData() {
-        return errorData.toString();
+        if (errorData != null) {
+            return errorData.toString();
+        }
+        return "";
     }
 
     @Override
diff --git a/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/FtpsClient.java b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/FtpsClient.java
index a88072c7..120868c6 100644
--- a/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/FtpsClient.java
+++ b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/FtpsClient.java
@@ -57,6 +57,8 @@ public class FtpsClient extends FileCollectClient {
     private IFile lf;
     private IFileSystemResource fileResource;
     private IOutputStream os;
+    private boolean keyManagerSet = false;
+    private boolean trustManagerSet = false;
 
     @Override
     public FileCollectResult retryCollectFile() {
@@ -84,19 +86,27 @@ public class FtpsClient extends FileCollectClient {
 
     private boolean setUpKeyManager(IFTPSClient ftps) {
         boolean result = true;
+        if (keyManagerSet) {
+            return result;
+        }
         try {
             IKeyManagerUtils keyManagerUtils = getKeyManagerUtils();
             keyManagerUtils.setCredentials(keyCertPath, keyCertPassword);
             ftps.setKeyManager(keyManagerUtils.getClientKeyManager());
+            keyManagerSet = true;
         } catch (GeneralSecurityException | IOException e) {
             addError("Unable to use own key store " + keyCertPath, e);
             result = false;
         }
+        logger.trace("complete setUpKeyManager");
         return result;
     }
 
     private boolean setUpTrustedCA(IFTPSClient ftps) {
         boolean result = true;
+        if (trustManagerSet) {
+            return result;
+        }
         try {
             IFileSystemResource fileSystemResource = getFileSystemResource();
             fileSystemResource.setPath(trustedCAPath);
@@ -107,11 +117,13 @@ public class FtpsClient extends FileCollectClient {
             ITrustManagerFactory tmf = getTrustManagerFactory();
             tmf.init(ks.getKeyStore());
             ftps.setTrustManager(tmf.getTrustManagers()[0]);
+            trustManagerSet = true;
 
         } catch (Exception e) {
             addError("Unable to trust xNF's CA, " + trustedCAPath, e);
             result = false;
         }
+        logger.trace("complete setUpTrustedCA");
         return result;
     }
 
@@ -119,7 +131,7 @@ public class FtpsClient extends FileCollectClient {
         boolean result = true;
         try {
             ftps.connect(fileServerData.serverAddress(), fileServerData.port());
-
+            logger.trace("after ftp connect");
             boolean loginSuccesful = ftps.login(fileServerData.userId(), fileServerData.password());
             if (!loginSuccesful) {
                 ftps.logout();
@@ -135,7 +147,8 @@ public class FtpsClient extends FileCollectClient {
                 ftps.execPROT("P");
             } else {
                 ftps.disconnect();
-                addError("Unable to connect to xNF. " + fileServerData + "xNF reply code: " + ftps.getReplyCode(), null);
+                addError("Unable to connect to xNF. " + fileServerData + " xNF reply code: " + ftps.getReplyCode(),
+                        null);
                 result = false;
             }
         } catch (Exception ex) {
@@ -157,8 +170,13 @@ public class FtpsClient extends FileCollectClient {
             IOutputStream outputStream = getOutputStream();
             OutputStream output = outputStream.getOutputStream(outfile.getFile());
 
-            ftps.retrieveFile(remoteFile, output);
-
+            result = ftps.retrieveFile(remoteFile, output);
+            if (!result) {
+                output.close();
+                logger.debug("Unable to retrieve file from xNF. Cause unknown!");
+                addError("Unable to retrieve file from xNF. Cause unknown!", null);
+                return result;
+            }
             output.close();
             logger.debug("File {} Download Successfull from xNF", localFile);
         } catch (IOException ex) {
diff --git a/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/IFTPSClient.java b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/IFTPSClient.java
index 2f370b98..b1472026 100644
--- a/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/IFTPSClient.java
+++ b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/IFTPSClient.java
@@ -48,4 +48,6 @@ public interface IFTPSClient {
     public void execPROT(String prot) throws IOException;
 
     public boolean retrieveFile(String remote, OutputStream local) throws IOException;
+
+    void setTimeout(Integer t);
 }