saving dates and checking modification date do speedup syncing

src/eu/alefzero/owncloud/datamodel/OCFile.java

@@ -23,6 +23,7 @@ import java.util.Vector;
 
 import eu.alefzero.owncloud.db.ProviderMeta.ProviderTableMeta;
 import android.accounts.Account;
+import android.content.ContentProvider;
 import android.content.ContentProviderClient;
 import android.content.ContentResolver;
 import android.content.ContentValues;
@@ -122,6 +123,25 @@ public class OCFile {
     }
   }
 
+  public OCFile(ContentProviderClient cp, Account account, String path) {
+    cp_ = cp;
+    account_ = account;
+    
+    try {
+      Cursor c = cp_.query(ProviderTableMeta.CONTENT_URI_FILE, null,
+          ProviderTableMeta.FILE_ACCOUNT_OWNER + "=? AND "
+              + ProviderTableMeta.FILE_PATH + "=?", new String[]{account_.name,
+              path}, null);
+      if (c.moveToFirst()) {
+        setFileData(c);
+        if (path_ != null)
+          path_ = path;
+      }
+    } catch (RemoteException e) {
+      Log.d(TAG , e.getMessage());
+    }
+  }
+
   public long getFileId() {
     return id_;
   }

src/eu/alefzero/owncloud/syncadapter/AbstractOwnCloudSyncAdapter.java

@@ -42,6 +42,7 @@ import android.content.ContentProviderClient;
 import android.content.Context;
 import android.net.Uri;
 import android.text.TextUtils;
+import android.util.Log;
 import eu.alefzero.owncloud.authenticator.AccountAuthenticator;
 import eu.alefzero.owncloud.datamodel.OCFile;
 import eu.alefzero.webdav.HttpPropFind;
@@ -66,7 +67,8 @@ public abstract class AbstractOwnCloudSyncAdapter extends AbstractThreadedSyncAd
 	
 	private HttpHost mHost;
 	private WebdavClient mClient = null;
-
+	private static String TAG = "AbstractOwnCloudSyncAdapter";
+	
 	public AbstractOwnCloudSyncAdapter(Context context, boolean autoInitialize) {
 		super(context, autoInitialize);
 		this.setAccountManager(AccountManager.get(context));
@@ -180,26 +182,42 @@ public abstract class AbstractOwnCloudSyncAdapter extends AbstractThreadedSyncAd
         continue;
       }
 			String path = n.stripPathFromFilename(uri.getPath());
-			OCFile new_file = OCFile.createNewFile(getContentProvider(),
-          getAccount(),
-          n.getProperty(NodeProperty.PATH),
-          0,//Long.parseLong(n.getProperty(NodeProperty.CONTENT_LENGTH)),
-          0,//Long.parseLong(n.getProperty(NodeProperty.CREATE_DATE)),
-          0,//Long.parseLong(n.getProperty(NodeProperty.LAST_MODIFIED_DATE)),
-          n.getProperty(NodeProperty.RESOURCE_TYPE),
-          parent_id);
-			new_file.save();
-			if (override_parent) {
-			  parent_id = new_file.getFileId();
-			  override_parent = false;
-			}
+			
+			long mod = n.getProperty(NodeProperty.LAST_MODIFIED_DATE) == null ?
+			           0 :
+			           Long.parseLong(n.getProperty(NodeProperty.LAST_MODIFIED_DATE));
+	    OCFile file = new OCFile(getContentProvider(), getAccount(), n.getProperty(NodeProperty.PATH));
+	    if (file.fileExtist() && file.getModificationTimestamp() >= mod) {
+	      Log.d(TAG, "No update for file/dir " + file.getFileName() + " is needed");
+	    } else {
+	      Log.d(TAG, "File " + n.getProperty(NodeProperty.PATH) + " will be " + (file.fileExtist() ? "updated" : "created"));
+  	    long len = n.getProperty(NodeProperty.CONTENT_LENGTH) == null ?
+                   0 :
+                   Long.parseLong(n.getProperty(NodeProperty.CONTENT_LENGTH));
+  	    long create = n.getProperty(NodeProperty.CREATE_DATE) == null ?
+                      0 :
+                      Long.parseLong(n.getProperty(NodeProperty.CREATE_DATE));
+  			file = OCFile.createNewFile(getContentProvider(),
+            getAccount(),
+            n.getProperty(NodeProperty.PATH),
+            len,
+            create,
+            mod,
+            n.getProperty(NodeProperty.RESOURCE_TYPE),
+            parent_id);
+  			file.save();
+  			if (override_parent) {
+  			  parent_id = file.getFileId();
+  			  override_parent = false;
+  			}
+	    }
 
 			if (!TextUtils.isEmpty(n.getProperty(NodeProperty.NAME)) &&
 					n.getProperty(NodeProperty.RESOURCE_TYPE).equals("DIR")) {
 			    
 			    HttpPropFind method = new HttpPropFind(uri.getPath() + path + n.getProperty(NodeProperty.NAME).replace(" ", "%20") + "/");
 				HttpResponse response = fireRawRequest(method);
-				parseResponse(response, uri, client, targetHost, n.getChildList(), true, new_file.getFileId());
+				parseResponse(response, uri, client, targetHost, n.getChildList(), true, file.getFileId());
 			}
 		}
 	}

src/eu/alefzero/webdav/TreeNode.java

@@ -86,7 +86,6 @@ public class TreeNode {
       propertyMap_.put(NodeProperty.NAME, name);
       propertyMap_.remove(NodeProperty.PATH);
       propertyMap_.put(NodeProperty.PATH, name2);
-      Log.i("TreeNode", toString());
       return path;
     }
     return null;

src/eu/alefzero/webdav/WebdavUtils.java

@@ -119,8 +119,6 @@ public class WebdavUtils {
         parseDisplayName(currentNode, resultNode, davPrefix);
         rList.add(resultNode);
       }
-      
-      
     } catch (ParserConfigurationException e) {
       e.printStackTrace();
     } catch (SAXException e) {
@@ -150,7 +148,7 @@ public class WebdavUtils {
     if (currentElement.getElementsByTagName(davPrefix + CREATE_DATE).getLength() != 0) {
       Date date = parseResponseDate(
           currentElement.getElementsByTagName(davPrefix + CREATE_DATE).item(0).getFirstChild().getNodeValue());
-      resultNode.setProperty(NodeProperty.CREATE_DATE, String.valueOf(date));
+      resultNode.setProperty(NodeProperty.CREATE_DATE, String.valueOf(date.getTime()));
     }
   }