HDFS-7987. Allow files / directories to be moved (Ravi Prakash via aw)

(cherry picked from commit d44f4745b4)

hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs/explorer.html

@@ -179,6 +179,13 @@
           data-target="#modal-upload-file" title="Upload Files">
             <span class="glyphicon glyphicon-cloud-upload"></span>
         </button>
+        <button class="btn btn-default dropdown-toggle" type="button"
+          data-toggle="dropdown" title="Cut & Paste">
+        <span class="glyphicon glyphicon-list-alt"></span></button>
+        <ul class="dropdown-menu cut-paste">
+          <li><a id="explorer-cut">Cut</a></li>
+          <li><a id="explorer-paste">Paste</a></li>
+        </ul>
       </div>
     </div>
 
@@ -236,6 +243,7 @@
       <table class="table" id="table-explorer">
         <thead>
           <tr>
+            <th><input type="checkbox" id="file-selector-all"></th>
             <th title="Permissions">Permission</th>
             <th>Owner</th>
             <th>Group</th>
@@ -251,6 +259,7 @@
           {#FileStatus}
           <tr inode-path="{pathSuffix}" data-permission="{permission}"
             class="explorer-entry">
+            <td><input type="checkbox" class="file_selector"> </td>
             <td><span class="explorer-perm-links editable-click">
               {type|helper_to_directory}{permission|helper_to_permission}
               {aclBit|helper_to_acl_bit}

hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs/explorer.js

@@ -310,22 +310,28 @@
           var absolute_file_path = append_path(current_directory, inode_name);
           delete_path(inode_name, absolute_file_path);
         });
-          
-          $('#table-explorer').dataTable( {
-              'lengthMenu': [ [25, 50, 100, -1], [25, 50, 100, "All"] ],
-              'columns': [
-                  {'searchable': false }, //Permissions
-                  null, //Owner
-                  null, //Group
-                  { 'searchable': false, 'render': func_size_render}, //Size
-                  { 'searchable': false, 'render': func_time_render}, //Last Modified
-                  { 'searchable': false }, //Replication
-                  null, //Block Size
-                  null, //Name
-                  { 'sortable' : false } //Trash
-              ],
-              "deferRender": true
-          });
+
+        $('#file-selector-all').click(function() {
+          $('.file_selector').prop('checked', $('#file-selector-all')[0].checked );
+        });
+
+        //This needs to be last because it repaints the table
+        $('#table-explorer').dataTable( {
+          'lengthMenu': [ [25, 50, 100, -1], [25, 50, 100, "All"] ],
+          'columns': [
+            { 'orderable' : false }, //select
+            {'searchable': false }, //Permissions
+            null, //Owner
+            null, //Group
+            { 'searchable': false, 'render': func_size_render}, //Size
+            { 'searchable': false, 'render': func_time_render}, //Last Modified
+            { 'searchable': false }, //Replication
+            null, //Block Size
+            null, //Name
+            { 'orderable' : false } //Trash
+          ],
+          "deferRender": true
+        });
       });
     }).error(network_error_handler(url));
   }
@@ -417,5 +423,50 @@
     }
   });
 
+  //Store the list of files which have been checked into session storage
+  function store_selected_files(current_directory) {
+    sessionStorage.setItem("source_directory", current_directory);
+    var selected_files = $("input:checked.file_selector");
+    var selected_file_names = new Array();
+    selected_files.each(function(index) {
+      selected_file_names[index] = $(this).closest('tr').attr('inode-path');
+    })
+    sessionStorage.setItem("selected_file_names", JSON.stringify(selected_file_names));
+    alert("Cut " + selected_file_names.length + " files/directories");
+  }
+
+  //Retrieve the list of files from session storage and rename them to the current
+  //directory
+  function paste_selected_files() {
+    var files = JSON.parse(sessionStorage.getItem("selected_file_names"));
+    var source_directory = sessionStorage.getItem("source_directory");
+    $.each(files, function(index, value) {
+      var url = "/webhdfs/v1"
+        + encode_path(append_path(source_directory, value))
+        + '?op=RENAME&destination='
+        + encode_path(append_path(current_directory, value));
+      $.ajax({
+        type: 'PUT',
+        url: url
+      }).done(function(data) {
+        if(index == files.length - 1) {
+          browse_directory(current_directory);
+        }
+      }).error(function(jqXHR, textStatus, errorThrown) {
+        show_err_msg("Couldn't move file " + value + ". " + errorThrown);
+      });
+
+    })
+  }
+
+  $('#explorer-cut').click(function() {
+    store_selected_files(current_directory);
+  });
+
+  $('#explorer-paste').click(function() {
+    paste_selected_files();
+  });
+
+
   init();
 })();

hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/static/hadoop.css

@@ -285,4 +285,11 @@ header.bs-docs-nav, header.bs-docs-nav .navbar-brand {
     margin-bottom: 0;
     font-weight: normal;
     cursor: pointer;
+}
+
+.cut-paste {
+  width: 75px;
+  min-width: 75px;
+  float: right;
+  left: 75px;
 }