Added memory management and more vm info.

git-svn-id: http://svn.igniterealtime.org/svn/repos/messenger/trunk@1101 b35dd754-fafc-0310-a699-88a17e54d16e

src/i18n/messenger_i18n_en.properties

@@ -490,6 +490,7 @@ index.jvm=JVM Version and Vendor:
 index.app=Appserver:
 index.os=OS / Hardware:
 index.local=Locale / Timezone:
+index.memory=Java Memory
 
 # Locale Page
 

src/i18n/messenger_i18n_zh_CN.properties

@@ -439,6 +439,7 @@ index.jvm=JVM \u7248\u672c\u548c\u4f9b\u5e94\u5546\uff1a
 index.app=Appserver:
 index.os=OS\uff0f\u786c\u4ef6\uff1a
 index.local=\u8bed\u8a00\u73af\u5883\uff0f\u65f6\u533a\uff1a
+index.memory=Java Memory
 
 # Locale Page
 

src/web/index.jsp

@@ -75,6 +75,11 @@
         else { checked = true; return true; }
     }
 </script>
+<style type="text/css">
+.bar TD {
+    padding : 0px;
+}
+</style>
 
 <form action="index.jsp" onsubmit="return checkClick();">
 <div class="jive-table">
@@ -209,7 +214,16 @@
     <tr>
         <td class="c1"><fmt:message key="index.jvm" /></td>
         <td class="c2">
-            <%= System.getProperty("java.version") %> <%= System.getProperty("java.vendor") %>
+            <%
+                String vmName = System.getProperty("java.vm.name");
+                if (vmName == null) {
+                    vmName = "";
+                }
+                else {
+                    vmName = " -- " + vmName;
+                }
+            %>
+            <%= System.getProperty("java.version") %> <%= System.getProperty("java.vendor") %><%= vmName %>
         </td>
     </tr>
     <tr>
@@ -231,6 +245,63 @@
             (<%= (JiveGlobals.getTimeZone().getRawOffset()/1000/60/60) %> GMT)
         </td>
     </tr>
+    <tr>
+        <td><fmt:message key="index.memory" /></td>
+        <td>
+        <%    // The java runtime
+            Runtime runtime = Runtime.getRuntime();
+
+            double freeMemory = (double)runtime.freeMemory()/(1024*1024);
+            double maxMemory = (double)runtime.maxMemory()/(1024*1024);
+            double totalMemory = (double)runtime.totalMemory()/(1024*1024);
+            double usedMemory = totalMemory - freeMemory;
+            double percentFree = ((maxMemory - usedMemory)/maxMemory)*100.0;
+            double percentUsed = 100 - percentFree;
+            int percent = 100-(int)Math.round(percentFree);
+
+            DecimalFormat mbFormat = new DecimalFormat("#0.00");
+            DecimalFormat percentFormat = new DecimalFormat("#0.0");
+        %>
+
+        <table cellpadding="0" cellspacing="0" border="0" width="300">
+        <tr valign="middle">
+            <td width="99%" valign="middle">
+                <div class="bar">
+                <table cellpadding="0" cellspacing="0" border="0" width="100%" style="border:1px #666 solid;">
+                <tr>
+                    <%  if (percent == 0) { %>
+
+                        <td width="100%"><img src="images/percent-bar-left.gif" width="100%" height="8" border="0" alt=""></td>
+
+                    <%  } else { %>
+
+                        <%  if (percent >= 90) { %>
+
+                            <td width="<%= percent %>%" background="images/percent-bar-used-high.gif"
+                                ><img src="images/blank.gif" width="1" height="8" border="0" alt=""></td>
+
+                        <%  } else { %>
+
+                            <td width="<%= percent %>%" background="images/percent-bar-used-low.gif"
+                                ><img src="images/blank.gif" width="1" height="8" border="0" alt=""></td>
+
+                        <%  } %>
+                        <td width="<%= (100-percent) %>%" background="images/percent-bar-left.gif"
+                            ><img src="images/blank.gif" width="1" height="8" border="0" alt=""></td>
+                    <%  } %>
+                </tr>
+                </table>
+                </div>
+            </td>
+            <td width="1%" nowrap>
+                <div style="padding-left:6px;">
+                <%= mbFormat.format(usedMemory) %> MB of <%= mbFormat.format(maxMemory) %> MB (<%= percentFormat.format(percentUsed) %>%) used
+                </div>
+            </td>
+        </tr>
+        </table>
+        </td>
+    </tr>
 </tbody>
 </table>
 </div>