rabbitmq-server/deps/rabbitmq_management/priv/www/js/formatters.js

UNKNOWN_REPR = '<span class="unknown">?</span>';
DESCRIPTOR_THRESHOLDS=[[0.75, 'red'],
		       [0.5, 'yellow']];
MEMORY_THRESHOLDS=[[1.0, 'red']];

function fmt_string(str) {
    if (str == undefined) return UNKNOWN_REPR;
    return str;
}

function fmt_num(num) {
    if (num == undefined) return UNKNOWN_REPR;
    return num.toFixed(0);
}

function fmt_bytes(bytes) {
    if (bytes == undefined) return UNKNOWN_REPR;

    function f(n, p) {
        if (n > 1024) return f(n / 1024, p + 1);
        else return [n, p];
    }

    var num_power = f(bytes, 0);
    var num = num_power[0];
    var power = num_power[1];
    var powers = ['B', 'kB', 'MB', 'GB', 'TB'];
    return (power == 0 ? num.toFixed(0) : num.toFixed(1)) + powers[power];
}

function fmt_boolean(b) {
    if (b == undefined) return UNKNOWN_REPR;

    return b ? "&#9679;" : "&#9675;";
}

function fmt_color(r, thresholds) {
    if (r == undefined) return '';
    if (thresholds == undefined) thresholds = DESCRIPTOR_THRESHOLDS;

    for (var i in thresholds) {
	var threshold = thresholds[i][0];
	var color = thresholds[i][1];

	if (r > threshold) {
	    return color;
	}
    }
    return 'green';
}

function fmt_rate(obj, name) {
    return fmt_rate0(obj, name, fmt_num);
}

function fmt_rate_bytes(obj, name) {
    return fmt_rate0(obj, name, fmt_bytes);
}

function fmt_rate0(obj, name, fmt) {
    if (obj == undefined || obj[name] == undefined) return '';
    var res = '<sub>(' + fmt(obj[name]) + ' total)</sub>';
    if (obj[name + '_details'] != undefined) {
        res = fmt(obj[name + '_details'].rate) + '/s' + res;
    }
    return res;
}

function fmt_exchange(name) {
    return name == '' ? '<i>(AMQP default)</i>' : name;
}

function fmt_exchange_url(name) {
    return name == '' ? 'amq.default' : name;
}

function fmt_download_filename(host) {
    var now = new Date();
    return host.replace('@', '_') + "_" + now.getFullYear() + "-" +
        (now.getMonth() + 1) + "-" + now.getDate() + ".json";
}

function fmt_table_short(table) {
    var res = '';
    for (k in table) {
        res += k + '=' + table[k] + '<br/>';
    }
    return res;
}

function alt_rows(i) {
    return (i % 2 == 0) ? ' class="alt"' : '';
}

function esc(str) {
    return encodeURIComponent(str);
}

function link_conn(name) {
    return link_to(name, '#/connections/' + esc(name))
}

function link_channel(name) {
    return link_to(name, '#/channels/' + esc(name))
}

function link_exchange(vhost, name) {
    var url = esc(vhost) + '/' + (name == '' ? 'amq.default' : esc(name));
    return link_to(fmt_exchange(name), '#/exchanges/' + url)
}

function link_queue(vhost, name) {
    return link_to(name, '#/queues/' + esc(vhost) + '/' + esc(name))
}

function link_vhost(name) {
    return link_to(name, '#/vhosts/' + esc(name))
}

function link_user(name) {
    return link_to(name, '#/users/' + esc(name))
}

function link_to(name, url) {
    return '<a href="' + url + '">' + name + '</a>';
}

function message_rates(stats) {
    var res = "";
    if (keys(stats).length > 0) {
        var items = [['Publish', 'publish'], ['Deliver', 'deliver'],
                     ['Acknowledge', 'ack'], ['Get', 'get'],
                     ['Deliver (noack)', 'deliver_no_ack'],
                     ['Get (noack)', 'get_no_ack']];
        for (var i in items) {
            var name = items[i][0];
            var key = items[i][1] + '_details';
            if (key in stats) {
                res += '<div class="highlight">' + name;
                res += '<strong>' + Math.round(stats[key].rate) + '</strong>';
                res += 'msg/s</div>';
            }
        }

        if (res == "") {
            res = '<p>Waiting for message rates...</p>';
        }
    }
    else {
        res = '<p>Currently idle</p>';
    }

    return res;
}

function maybe_truncate(items) {
    var maximum = 500;
    var str = '';

    if (items.length > maximum) {
        str = '<p class="warning">Only ' + maximum + ' of ' +
            items.length + ' items are shown.</p>';
        items.length = maximum;
    }

    return str;
}

function fmt_sort(display, sort) {
    var prefix = '';
    if (current_sort == sort) {
        prefix = '<span class="arrow">' +
            (current_sort_reverse ? '&#9650; ' : '&#9660; ') +
            '</span>';
    }
    return '<a class="sort" sort="' + sort + '">' + prefix + display + '</a>';
}