modules.HandleMonitorModule.java Source code

Introduction

Here is the source code for modules.HandleMonitorModule.java

Source

/**
* Copyright (c) 2014, Fabio Corubolo - University of Liverpool and Anna Eggers - Gttingen State and University Library
* The work has been developed in the PERICLES Project by Members of the PERICLES Consortium.
* This work was supported by the European Commission Seventh Framework Programme under Grant Agreement Number FP7- 601138 PERICLES.
*
* Licensed 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, including without
* limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTIBITLY, or FITNESS FOR A PARTICULAR
* PURPOSE. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise,
* unless required by applicable law or agreed to in writing, shall any Contributor be liable for damages, including
* any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this
* License or out of the use or inability to use the Work.
* See the License for the specific language governing permissions and limitation under the License.
*/
package modules;

import java.util.HashSet;

import model.Event;
import model.OperatingSystem.OsName;
import modules.LSOFMonitoringDaemon.LSOFout;

import com.google.common.collect.Sets;

public class HandleMonitorModule extends NativeProcessIterativeDaemonModule {

    public HandleMonitorModule() {
        super();
        getConfig().enabled = false;
        getConfig().WINcommandNameOrPath = "nativeTools/handle.exe";
        getConfig().addSupportedSystem(OsName.WINDOWS);
        getConfig().defaults = getConfig().options = "-u";
        getConfig().helpOption = "-h";
        getConfig().waitBetweenCalls = 1000;
        getConfig().recordEvents = true;
    }

    @Override
    public void setModuleName() {
        moduleName = "Windows Handle monitoring daemon";
    }

    static String divider = "----------------";
    HashSet<LSOFout> prev;

    @Override
    public void processOut(String extractNative) {
        HashSet<LSOFout> res = new HashSet<LSOFout>();
        String lines[] = extractNative.split("\\r?\\n");
        for (int n = 0; n < lines.length; n++) {
            // start of a new process
            if (lines[n].startsWith(divider) && ++n < lines.length) {
                String[] header = lines[n].split("\\s+", 5);
                String name = header[0];
                long pid = Long.parseLong(header[2]);
                n++;
                while (n < lines.length && !lines[n].startsWith(divider)) {
                    String[] current = lines[n].split("\\s+", 5);
                    LSOFout o = new LSOFout();
                    o.command = name;
                    o.pid = pid;
                    o.node = current[1];
                    o.type = current[2];
                    if (current.length > 4) {
                        o.FD = current[3];
                        o.name = current[4];
                        if (!name.equals("handle.exe")) {
                            res.add(o);
                        }
                    }
                    n++;
                }
            }
        }
        if (prev != null) {
            for (LSOFout o : Sets.difference(prev, res)) {
                disappear(o);
            }
            for (LSOFout o : Sets.difference(res, prev)) {
                appear(o);
            }
        } else {
            for (LSOFout o : res) {
                appear(o);
            }
        }
        prev = res;
    }

    private void appear(LSOFout o) {
        if (config.fileFilter.fileExtensionSupported(o.name)) {
            Event e = new Event(o, false, this, o.name);
            e.type = "appear";
            submitEvent(e);
        }
    }

    private void disappear(LSOFout o) {
        if (config.fileFilter.fileExtensionSupported(o.name)) {
            Event e = new Event(o, false, this, o.name);
            e.type = "disappear";
            submitEvent(e);
        }
    }
}