oc_framework/src/com/owncloud/android/oc_framework/operations/remote/ReadRemoteFileOperation.java

   1 package com.owncloud.android.oc_framework.operations.remote;
   2
   3 import org.apache.http.HttpStatus;
   4 import org.apache.jackrabbit.webdav.DavConstants;
   5 import org.apache.jackrabbit.webdav.MultiStatus;
   6 import org.apache.jackrabbit.webdav.client.methods.PropFindMethod;
   7
   8 import android.util.Log;
   9
  10 import com.owncloud.android.oc_framework.network.webdav.WebdavClient;
  11 import com.owncloud.android.oc_framework.network.webdav.WebdavUtils;
  12 import com.owncloud.android.oc_framework.operations.RemoteOperation;
  13 import com.owncloud.android.oc_framework.operations.RemoteOperationResult;
  14
  15 /**
  16  * Remote operation performing the read of remote file or folder in the ownCloud server.
  17  *
  18  * @author David A. Velasco
  19  * @author masensio
  20  */
  21
  22 public class ReadRemoteFileOperation extends RemoteOperation {
  23
  24         private static final String TAG = ReadRemoteFileOperation.class.getSimpleName();
  25
  26         private String mRemotePath;
  27         private MultiStatus mDataInServer;
  28
  29         public MultiStatus getDataInServer() {
  30                 return mDataInServer;
  31         }
  32
  33
  34         /**
  35      * Constructor
  36      *
  37      * @param remotePath                Remote path of the file.
  38      */
  39         public ReadRemoteFileOperation(String remotePath) {
  40                 mRemotePath = remotePath;
  41                 mDataInServer = null;
  42         }
  43
  44         /**
  45      * Performs the read operation.
  46      *
  47      * @param   client      Client object to communicate with the remote ownCloud server.
  48      */
  49         @Override
  50         protected RemoteOperationResult run(WebdavClient client) {
  51                 RemoteOperationResult result = null;
  52         PropFindMethod query = null;
  53
  54         try {
  55             // remote request
  56             query = new PropFindMethod(client.getBaseUri() + WebdavUtils.encodePath(mRemotePath),
  57                     DavConstants.PROPFIND_ALL_PROP,
  58                     DavConstants.DEPTH_1);
  59             int status = client.executeMethod(query);
  60
  61             // check and process response
  62             if (isMultiStatus(status)) {
  63                 // get data from remote folder
  64                 mDataInServer = query.getResponseBodyAsMultiStatus();
  65                 result = new RemoteOperationResult(true, status, query.getResponseHeaders());
  66             } else {
  67                 // synchronization failed
  68                 client.exhaustResponse(query.getResponseBodyAsStream());
  69                 result = new RemoteOperationResult(false, status, query.getResponseHeaders());
  70             }
  71
  72         } catch (Exception e) {
  73             result = new RemoteOperationResult(e);
  74
  75
  76         } finally {
  77             if (query != null)
  78                 query.releaseConnection();  // let the connection available for other methods
  79             if (result.isSuccess()) {
  80                 Log.i(TAG, "Synchronized "  + mRemotePath + ": " + result.getLogMessage());
  81             } else {
  82                 if (result.isException()) {
  83                     Log.e(TAG, "Synchronized " + mRemotePath  + ": " + result.getLogMessage(), result.getException());
  84                 } else {
  85                     Log.e(TAG, "Synchronized " + mRemotePath + ": " + result.getLogMessage());
  86                 }
  87             }
  88
  89         }
  90         return result;
  91         }
  92
  93     public boolean isMultiStatus(int status) {
  94         return (status == HttpStatus.SC_MULTI_STATUS);
  95     }
  96
  97 }