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R3704/2.3.0/hadoop-2.3.0-src/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs/dfs-dust.js
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dfs-dust.js
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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
(function ($, dust, exports) {
"use strict";
var filters = {
'fmt_bytes': function (v) {
var UNITS = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'ZB'];
var prev = 0, i = 0;
while (Math.floor(v) > 0 && i < UNITS.length) {
prev = v;
v /= 1024;
i += 1;
}
if (i > 0 && i < UNITS.length) {
v = prev;
i -= 1;
}
return Math.round(v * 100) / 100 + ' ' + UNITS[i];
},
'fmt_percentage': function (v) {
return Math.round(v * 100) / 100 + '%';
},
'fmt_time': function (v) {
var s = Math.floor(v / 1000), h = Math.floor(s / 3600);
s -= h * 3600;
var m = Math.floor(s / 60);
s -= m * 60;
var res = s + " sec";
if (m !== 0) {
res = m + " mins, " + res;
}
if (h !== 0) {
res = h + " hrs, " + res;
}
return res;
}
};
$.extend(dust.filters, filters);
/**
* Load a sequence of JSON.
*
* beans is an array of tuples in the format of {url, name}.
*/
function load_json(beans, success_cb, error_cb) {
var data = {}, error = false, to_be_completed = beans.length;
$.each(beans, function(idx, b) {
if (error) {
return false;
}
$.get(b.url, function (resp) {
data[b.name] = resp;
to_be_completed -= 1;
if (to_be_completed === 0) {
success_cb(data);
}
}).error(function (jqxhr, text, err) {
error = true;
error_cb(b.url, jqxhr, text, err);
});
});
}
exports.load_json = load_json;
}($, dust, window));
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