/*
* 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.
*/
package org.apache.myfaces.tobago.example.addressbook.web;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
import javax.annotation.security.RolesAllowed;
import javax.swing.BoundedRangeModel;
import javax.swing.DefaultBoundedRangeModel;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryMXBean;
import java.lang.management.MemoryUsage;
@Component("admin")
@Scope("session")
public class AdminController {
private static final String OUTCOME_ADMIN = "admin";
private BoundedRangeModel memoryUsage;
private String state;
@RolesAllowed("admin")
public String admin() {
return OUTCOME_ADMIN;
}
public boolean getUpdateMemory() {
MemoryMXBean memoryBean = ManagementFactory.getMemoryMXBean();
MemoryUsage memory = memoryBean.getHeapMemoryUsage();
memoryUsage = new DefaultBoundedRangeModel(Long.valueOf(memory.getUsed()/1024).intValue(),
0, 0, Long.valueOf(memory.getMax()/1024).intValue());
int percentValue = memoryUsage.getValue()/(memoryUsage.getMaximum()*100);
if (percentValue <= 80) {
state = "ok";
} else if (percentValue > 95) {
state = "error";
} else {
state = "warn";
}
return true;
}
public BoundedRangeModel getMemory() {
if (memoryUsage == null) {
getUpdateMemory();
}
return memoryUsage;
}
public String getState() {
if (memoryUsage == null) {
getUpdateMemory();
}
return state;
}
}