com.logsniffer.web.controller.system.SystemBaseController.java Source code

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Here is the source code for com.logsniffer.web.controller.system.SystemBaseController.java

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/*******************************************************************************
 * logsniffer, open source tool for viewing, monitoring and analysing log data.
 * Copyright (c) 2015 Scaleborn UG, www.scaleborn.com
 *
 * logsniffer is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * logsniffer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *******************************************************************************/
package com.logsniffer.web.controller.system;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

import com.logsniffer.web.ViewController;
import com.logsniffer.web.app.NavigationAppConfig;
import com.logsniffer.web.nav.NavNode;

/**
 * Base controller for system pages.
 * 
 * @author mbok
 * 
 */
@ViewController
public class SystemBaseController {
    @Autowired
    @Qualifier(NavigationAppConfig.NAV_NODE_SYSTEM)
    private NavNode systemNode;

    @RequestMapping(value = "/system", method = RequestMethod.GET)
    public ModelAndView renderSystem(@RequestParam(value = "path", required = false) final String path) {
        List<NavNode> breadcrumbNodes = new ArrayList<NavNode>();
        breadcrumbNodes.add(systemNode);

        ModelAndView mv = new ModelAndView("system/main");
        mv.addObject("rootNode", systemNode);
        NavNode activeNode = getActiveNode(systemNode, path);

        mv.addObject("breadcrumbNodes", getBreadcrumb(activeNode));
        mv.addObject("activeNode", activeNode);
        return mv;
    }

    private NavNode getActiveNode(final NavNode parentNode, final String path) {
        if (StringUtils.isBlank(path)) {
            if (!parentNode.getSubNodes().isEmpty()) {
                return parentNode.getSubNodes().get(0);
            }
        } else {
            String[] pathes = path.split("/", 2);
            for (NavNode c : parentNode.getSubNodes()) {
                if (c.getPath().equals(pathes[0])) {
                    if (pathes.length == 1) {
                        return c;
                    } else {
                        return getActiveNode(c, pathes[1]);
                    }
                }
            }
        }
        return parentNode;
    }

    private List<NavNode> getBreadcrumb(NavNode activeNode) {
        ArrayList<NavNode> nodes = new ArrayList<NavNode>();
        while (activeNode.getParent() != null) {
            nodes.add(activeNode.getParent());
            activeNode = activeNode.getParent();
        }
        Collections.reverse(nodes);
        return nodes;
    }
}