cache.jsp

jive的源码

    <td align="center"><font size="-2" face="verdana"><b>OBJECTS</b></font></td>
    <td align="center"><font size="-2" face="verdana"><b>EFFECTIVENESS</b></font></td>
    <td align="center"><font size="-2" face="verdana"><b>CLEAR CACHE?</b></font></td>
    </tr>

<%    // cache variables
    double memUsed;
    double totalMem;
    double freeMem;
    double hitPercent;
    long hits;
    long misses;

    // Loop through each cache, print out its info
    for (int i=0; i<caches.length; i++) {
        Cache cache = caches[i];
        memUsed = (double)cache.getCacheSize()/(1024*1024);
        totalMem = (double)cache.getMaxCacheSize()/(1024*1024);
        freeMem = 100 - 100*memUsed/totalMem;
        hits = cache.getCacheHits();
        misses = cache.getCacheMisses();
        if (hits + misses == 0) {
            hitPercent = 0.0;
        }
        else {
            hitPercent = 100*(double)hits/(hits+misses);
        }
        boolean lowEffec = (hits > 500 && hitPercent < 85.0 && freeMem < 20.0);
%>
    <tr bgcolor="#ffffff">
        <td><font size="-1"><%= cache.getName() %></font></td>
        <td>
            <font size="-1">
            &nbsp;
            <%= mbFormat.format(totalMem) %> MB,
            <font size="-2" face="verdana">
            <%= percentFormat.format(freeMem)%>% free
            </font>
            &nbsp;
            </font>
        </td>
        <td align="center">
            <font size="-1">
            &nbsp;
            <%= LocaleUtils.getLocalizedNumber(cache.size(), JiveGlobals.getLocale()) %>
            &nbsp;
            </font>
        </td>
        <td>
            <font size="-1">
            &nbsp;
            <%  if (lowEffec) { %>
            <font color="#ff0000"><b><%= percentFormat.format(hitPercent)%>%</b></font>
            <%  } else { %>
            <b><%= percentFormat.format(hitPercent)%>%</b>
            <%  } %>
            (<%= LocaleUtils.getLocalizedNumber(hits, JiveGlobals.getLocale()) %> hits,
            <%= LocaleUtils.getLocalizedNumber(misses, JiveGlobals.getLocale()) %> misses)
            &nbsp;
            </font>
        </td>
        <td align="center">
            <input type="checkbox" name="cacheID" value="<%= i %>">
        </td>
    </tr>
<%    } %>
    <tr bgcolor="#ffffff">
        <td>&nbsp;</td>
        <td><input type="submit" name="editSizes" value="Edit Cache Sizes"></td>
        <td colspan="2">&nbsp;</td>
        <td align="center">
            <input type="submit" name="clearCache" value="Clear">
        </td>
    </tr>
    </table>
    </td>
    </table>
</ul>
</form><p>
<%  } %>

<font size="-1"><b>Cache Status</b></font>
<ul>
    <font size="-1">
    You can enable or disable caching in the Jive system by using the form
    below. Disabling cache will severely degrade performance.
    </font><p>
    <form action="cache.jsp">
    <input type="hidden" name="doCache" value="true">
    <table bgcolor="<%= tblBorderColor %>" cellpadding="0" cellspacing="0" border="0" width="300">
    <td>
    <table bgcolor="<%= tblBorderColor %>" cellpadding="3" cellspacing="1" border="0" width="100%">
    <tr bgcolor="#ffffff">
    <td align="center"<%= (cacheEnabled)?" bgcolor=\"#99cc99\"":"" %>>
        <font size="-1">
        <input type="radio" name="cacheEnabled" value="true" id="rb01"
         <%= (cacheEnabled)?"checked":"" %>>
        <label for="rb01"><%= (cacheEnabled)?"<b>On</b>":"On" %></label>
        </font>
    </td>
    <td align="center"<%= (!cacheEnabled)?" bgcolor=\"#cc6666\"":"" %>>
        <font size="-1">
        <input type="radio" name="cacheEnabled" value="false" id="rb02"
         <%= (!cacheEnabled)?"checked":"" %>>
        <label for="rb02"><%= (!cacheEnabled)?"<b>Off</b>":"Off" %></label>
        </font>
    </td>
    <td align="center">
        <font size="-1"><input type="submit" value="Update"></font>
    </td>
    </tr>
    </table>
    </td>
    </table>
    </form>
</ul>
<p>

<%  if (cacheEnabled && Version.EDITION == Version.Edition.ENTERPRISE) { %>
<font size="-1"><b>Short-term Query Cache</b></font>
<ul>
    <font size="-1">
    Prevents cache expirations of the query cache from happening more than once every
    <%= (stqcLifetime/1000L) %> seconds.
    This is useful for sites with extreme amounts of traffic. The ramification to using the
    short-term query cache is that new content won't appear for <%= (stqcLifetime/1000L) %> seconds
    after it's posted.
    </font>
    <p></p>
    <form action="cache.jsp">
    <table bgcolor="<%= tblBorderColor %>" cellpadding="0" cellspacing="0" border="0" width="300">
    <td>
    <table bgcolor="<%= tblBorderColor %>" cellpadding="3" cellspacing="1" border="0" width="100%">
    <tr bgcolor="#ffffff">
    <td align="center"<%= (stqcEnabled)?" bgcolor=\"#99cc99\"":"" %>>
        <font size="-1">
        <input type="radio" name="stqcEnabled" value="true" id="rb03"
         <%= (stqcEnabled)?"checked":"" %>>
        <label for="rb03"><%= (stqcEnabled)?"<b>On</b>":"On" %></label>
        </font>
    </td>
    <td align="center"<%= (!stqcEnabled)?" bgcolor=\"#cc6666\"":"" %>>
        <font size="-1">
        <input type="radio" name="stqcEnabled" value="false" id="rb04"
         <%= (!stqcEnabled)?"checked":"" %>>
        <label for="rb04"><%= (!stqcEnabled)?"<b>Off</b>":"Off" %></label>
        </font>
    </td>
    <td align="center">
        <input type="submit" value="Update" name="setStqcEnabled">
    </td>
    </tr>
    </table>
    </td>
    </table>
    </form>
    <%  if (stqcEnabled && Version.EDITION == Version.Edition.ENTERPRISE) { %>
        <form action="cache.jsp">
        <table cellpadding="2" cellspacing="0" border="0">
        <tr>
            <td rowspan="3" valign="top">
                <font size="-1">
                Cache Object Lifetime:
                </font>
            </td>
            <td><input type="radio" name="stqcLifetime" value="5000"<%= ((stqcLifetime==5000)?" checked":"") %> id="st01"></td>
            <td>
                <font size="-1">
                <label for="st01">5 seconds (default)</label>
                </font>
            </td>
        </tr>
        <tr>
            <td><input type="radio" name="stqcLifetime" value="10000"<%= ((stqcLifetime==10000)?" checked":"") %> id="st02"></td>
            <td>
                <font size="-1">
                <label for="st02">10 seconds</label>
                </font>
            </td>
        </tr>
        <tr>
            <td>&nbsp;</td>
            <td>
                <input type="submit" name="saveLifetime" value="Save">
            </td>
        </tr>
        </table>
        </form>
    <%  } %>
</ul>
<%  } %>

<%  if (cacheEnabled && Version.EDITION == Version.Edition.ENTERPRISE) { %>
<font size="-1"><b>Clustering</b></font>
<ul>
    <font size="-1">
    You can enable or disable clustered caching in the Jive system by using the
    form below. (<b>Note</b>, enabling or disabling clustering requires an
    appserver restart.)
    <%  if (promptForRestart) { %>
    <p>
    <i>
    Note, because your changed your cache policy, you must restart your appserver.
    The clustering status below will be incorrect until you restart.
    </i>
    <%  } %>
    </font><p>
    <form action="cache.jsp" onsubmit="return confirm('Changing your caching policy requires an appserver restart.\n\nAre you sure you want to continue?');">
    <table bgcolor="<%= tblBorderColor %>" cellpadding="0" cellspacing="0" border="0" width="300">
    <td>
    <table bgcolor="<%= tblBorderColor %>" cellpadding="3" cellspacing="1" border="0" width="100%">
    <tr bgcolor="#ffffff">
    <td align="center"<%= (clusteringEnabled)?" bgcolor=\"#99cc99\"":"" %>>
        <font size="-1">
        <input type="radio" name="clusteringEnabled" value="true" id="rb03"
         <%= (clusteringEnabled)?"checked":"" %>>
        <label for="rb03"><%= (clusteringEnabled)?"<b>On</b>":"On" %></label>
        </font>
    </td>
    <td align="center"<%= (!clusteringEnabled)?" bgcolor=\"#cc6666\"":"" %>>
        <font size="-1">
        <input type="radio" name="clusteringEnabled" value="false" id="rb04"
         <%= (!clusteringEnabled)?"checked":"" %>>
        <label for="rb04"><%= (!clusteringEnabled)?"<b>Off</b>":"Off" %></label>
        </font>
    </td>
    <td align="center">
        <input type="submit" value="Update" name="setClusteringEnabled">
    </td>
    </tr>
    </table>
    </td>
    </table>
    </form>
    <p>
</ul>
<%  } %>

<%  if (cacheEnabled) { %>
<font size="-1"><b>Warmup Cache</b></font>
<ul>
    <font size="-1">
    The cache warmup process will load your caches with the data that is most likely to
    accessed by users. This action is useful to perform when first starting a server,
    or after flushing the cache. However, it will put a heavy load on your database.
    <p>
    <form action="cache.jsp">
    <input type="submit" name="warmupCache" value="Warmup Cache">
    </form>
    </font>
</ul>
<p>
<%  } %>

<font size="-1"><b>Java VM Memory</b></font>
<ul>

<%    // The java runtime
    Runtime runtime = Runtime.getRuntime();

    double freeMemory = (double)runtime.freeMemory()/(1024*1024);
    double totalMemory = (double)runtime.totalMemory()/(1024*1024);
    double usedMemory = totalMemory - freeMemory;
    double percentFree = ((double)freeMemory/(double)totalMemory)*100.0;
    int free = 100-(int)Math.round(percentFree);
%>
    <table border=0>
    <tr><td><font size="-1">Used Memory:</font></td>
        <td><font size="-1"><%= mbFormat.format(usedMemory) %> MB</font></td>
    </tr>
    <tr><td><font size="-1">Total Memory:</font></td>
        <td><font size="-1"><%= mbFormat.format(totalMemory) %> MB</font></td>
    </tr>
    </table>
    <br>
    <table border=0><td>
    <table bgcolor="#000000" cellpadding="1" cellspacing="0" border="0" width="200" align=left>
    <td>
    <table bgcolor="#000000" cellpadding="1" cellspacing="1" border="0" width="100%">
<%    for (int i=0; i<NUM_BLOCKS; i++) {
        if ((i*(100/NUM_BLOCKS)) < free) {
    %>
        <td bgcolor="#00ff00" width="<%= (100/NUM_BLOCKS) %>%"><img src="images/blank.gif" width="1" height="15" border="0"></td>
<%        } else { %>
        <td bgcolor="#006600" width="<%= (100/NUM_BLOCKS) %>%"><img src="images/blank.gif" width="1" height="15" border="0"></td>
<%        }
    }
%>
    </table>
    </td>
    </table></td><td>
        <font size="-1">
        &nbsp;<b><%= percentFormat.format(percentFree) %>% free</b>
        </font>
    </td></table>
</ul>

<%    // Destroy the runtime reference
    runtime = null;
%>

<%@ include file="footer.jsp" %>