oscar.util.OscarStatusAction.java Source code

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Here is the source code for oscar.util.OscarStatusAction.java

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/**
 * Copyright (c) 2008-2012 Indivica Inc.
 *
 * This software is made available under the terms of the
 * GNU General Public License, Version 2, 1991 (GPLv2).
 * License details are available via "indivica.ca/gplv2"
 * and "gnu.org/licenses/gpl-2.0.html".
 */

package oscar.util;

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.io.FileUtils;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import oscar.OscarProperties;

public class OscarStatusAction extends Action {

    public ActionForward execute(ActionMapping actionMapping, ActionForm actionForm,
            HttpServletRequest servletRequest, HttpServletResponse servletResponse) {

        try {
            if (servletRequest.getSession().getAttribute("userrole") == null)
                servletResponse.sendRedirect("../logout.jsp");
        } catch (Exception e) {
            return actionMapping.findForward("failure");
        }

        String roleName$ = (String) servletRequest.getSession().getAttribute("userrole") + ","
                + (String) servletRequest.getAttribute("user");

        if (roleName$.contains("admin")) {
            if (servletRequest.getParameter("method") != null
                    && servletRequest.getParameter("method").equalsIgnoreCase("rebootOscar")) {
                servletRequest.setAttribute("restartOscar", restartOscar());
            } else if (servletRequest.getParameter("method") != null
                    && servletRequest.getParameter("method").equalsIgnoreCase("rebootServer")) {
                servletRequest.setAttribute("rebootServer", rebootServer());
            }
        }

        if (servletRequest.getParameter("delayed") != null) {
            servletRequest.setAttribute("documentStatusText", documentStorage());
            servletRequest.setAttribute("hl7StatusText", hl7Status());
        }

        servletRequest.setAttribute("sqlMasterStatusText", getOscarSQLMasterStatus());
        servletRequest.setAttribute("sqlSlaveStatusText", getOscarSQLSlaveStatus());
        servletRequest.setAttribute("filesystemStatusText", getFilesystemStatus());
        servletRequest.setAttribute("uptimeText", uptime());
        servletRequest.setAttribute("vmstatText", vmstat());

        return actionMapping.findForward("success");

    }

    private String getOscarSQLMasterStatus() {
        String output = "$ show master status\\G\n";

        String dbUser = OscarProperties.getInstance().getProperty("db_username");
        String dbPass = OscarProperties.getInstance().getProperty("db_password");

        String[] cmd = { "/bin/sh", "-c",
                "mysql -u" + dbUser + " -p" + dbPass + " --vertical -e \"show master status\"" };

        Runtime r = Runtime.getRuntime();
        try {
            Process p = r.exec(cmd);
            InputStream in = p.getInputStream();
            InputStreamReader isr = new InputStreamReader(in);
            BufferedReader br = new BufferedReader(isr);
            String line;

            while ((line = br.readLine()) != null) {
                output += line + "\n";
            }

        } catch (IOException e) {
            output += "[An error has been encountered.]\n";
            output += "[" + e.getMessage() + "]\n";
        }

        return output;
    }

    private String getOscarSQLSlaveStatus() {
        String output = "$ show slave status\\G\n";

        String dbUser = OscarProperties.getInstance().getProperty("db_username");
        String dbPass = OscarProperties.getInstance().getProperty("db_password");

        String[] cmd = { "/bin/sh", "-c",
                "mysql -u" + dbUser + " -p" + dbPass + " --vertical -e \"show slave status\"" };

        Runtime r = Runtime.getRuntime();
        try {
            Process p = r.exec(cmd);
            InputStream in = p.getInputStream();
            InputStreamReader isr = new InputStreamReader(in);
            BufferedReader br = new BufferedReader(isr);
            String line;

            while ((line = br.readLine()) != null) {
                output += line + "\n";
            }

        } catch (IOException e) {
            output += "[An error has been encountered.]\n";
            output += "[" + e.getMessage() + "]\n";
        }

        return output;
    }

    private String getFilesystemStatus() {
        String output = "$ df -h\n";

        Runtime r = Runtime.getRuntime();
        try {
            Process p = r.exec("df -h");
            InputStream in = p.getInputStream();
            InputStreamReader isr = new InputStreamReader(in);
            BufferedReader br = new BufferedReader(isr);
            String line;

            while ((line = br.readLine()) != null) {
                output += line + "\n";
            }

        } catch (IOException e) {
            output += "[An error has been encountered.]\n";
            output += "[" + e.getMessage() + "]\n";
        }

        return output;
    }

    private String uptime() {
        String output = "$ uptime\n";

        Runtime r = Runtime.getRuntime();
        try {
            Process p = r.exec("uptime");
            InputStream in = p.getInputStream();
            InputStreamReader isr = new InputStreamReader(in);
            BufferedReader br = new BufferedReader(isr);
            String line;

            while ((line = br.readLine()) != null) {
                output += line + "\n";
            }

        } catch (IOException e) {
            output += "[An error has been encountered.]\n";
            output += "[" + e.getMessage() + "]\n";
        }

        return output;
    }

    private String vmstat() {
        String output = "$ vmstat\n";

        Runtime r = Runtime.getRuntime();
        try {
            Process p = r.exec("vmstat");
            InputStream in = p.getInputStream();
            InputStreamReader isr = new InputStreamReader(in);
            BufferedReader br = new BufferedReader(isr);
            String line;

            while ((line = br.readLine()) != null) {
                output += line + "\n";
            }

        } catch (IOException e) {
            output += "[An error has been encountered.]\n";
            output += "[" + e.getMessage() + "]\n";
        }

        return output;
    }

    private String documentStorage() {
        String output = "";

        if (OscarProperties.getInstance().getProperty("DOCUMENT_DIR") != null) {
            String docDir = OscarProperties.getInstance().getProperty("DOCUMENT_DIR");

            output += "$ ls -R " + docDir + " | wc \n";
            String bashCmd = "ls -R " + docDir + " | wc";

            String[] cmd = { "/bin/sh", "-c", bashCmd };

            Runtime r = Runtime.getRuntime();
            try {
                Process p = r.exec(cmd);
                InputStream in = p.getInputStream();
                InputStreamReader isr = new InputStreamReader(in);
                BufferedReader br = new BufferedReader(isr);
                String line;

                while ((line = br.readLine()) != null) {
                    output += line;
                }

            } catch (IOException e) {
                output += "[An error has been encountered.]\n";
                output += "[" + e.getMessage() + "]\n";
            }

        } else {
            output += "Property for DOCUMENT_DIR is not definied.";
        }
        return output;
    }

    private String hl7Status() {

        String output = "";
        if (OscarProperties.getInstance().getProperty("HL7_COMPLETED_DIR") != null) {

            String hl7Dir = OscarProperties.getInstance().getProperty("HL7_COMPLETED_DIR");
            output += "$ ls -ltr " + hl7Dir + " \n";

            String[] cmd = { "/bin/sh", "-c", "ls -ltr " + hl7Dir };

            Runtime r = Runtime.getRuntime();
            try {
                Process p = r.exec(cmd);
                InputStream in = p.getInputStream();
                InputStreamReader isr = new InputStreamReader(in);
                BufferedReader br = new BufferedReader(isr);
                String line;

                while ((line = br.readLine()) != null) {
                    output += line;
                }

            } catch (IOException e) {
                output += "[An error has been encountered.]\n";
                output += "[" + e.getMessage() + "]\n";
            }
        } else {
            output += "Property for HL7_COMPLETED_DIR is not definied.";
        }

        return output;
    }

    private String restartOscar() {
        File f = new File(System.getProperty("java.io.tmpdir") + File.separator + "restartOscar.action");
        try {
            FileUtils.writeStringToFile(f, "1");

            return "[Oscar Restart Requested: All unsaved data will be lost.]";
        } catch (IOException e) {
            return "[An error has been encountered.]\n[" + e.getMessage() + "]\n";
        }
    }

    private String rebootServer() {
        File f = new File(System.getProperty("java.io.tmpdir") + File.separator + "rebootServer.action");
        try {
            FileUtils.writeStringToFile(f, "1");

            return "[Server Reboot Requested: All unsaved data will be lost.]";
        } catch (IOException e) {
            return "[An error has been encountered.]\n[" + e.getMessage() + "]\n";
        }
    }

}