com.sec.ose.osi.ui.cache.UICache.java Source code

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Here is the source code for com.sec.ose.osi.ui.cache.UICache.java

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/**
 * Copyright(C) 2013-2014 Samsung Electronics Co., Ltd. All rights reserved.
 *
 *   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.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 *
*/
package com.sec.ose.osi.ui.cache;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.HashMap;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * UICache
 * @author suhyun47.kim, hankido.lee
 * 
 */

public class UICache implements Serializable {
    private static Log log = LogFactory.getLog(UICache.class);

    private static final long serialVersionUID = 1L;

    private static final String CACHE_FILE_NAME = ".cache";

    public UICache() {
        load();
    }

    private HashMap<Integer, UIEntity> mMap = new HashMap<Integer, UIEntity>();
    public static final int ENT_LOGIN = 1;

    public static final int UE_LOGIN = 1;
    public static final int UE_PROJECT_EXPLORER = 2;
    public static final int UE_AUTO_DECLARE = 3;

    public static final int UE_BOM_TABLE = 4;

    public static final int UE_SELECTED_PROJECT_INFO_IN_ANALYSIS = 10;

    public static final int UE_REPORT_TEMPLATE = 15;
    public static final int UE_MONITOR_INTERVAL = 16;

    public UIEntity getUIEntity(int pKey) {
        return this.mMap.get(pKey);
    }

    public void setUIEntity(int pKey, UIEntity pUIEntity) {
        this.mMap.put(pKey, pUIEntity);
        save();
    }

    private void save() {

        log.debug("save cache");
        ObjectOutputStream dos = null;

        try {
            File file = new File(CACHE_FILE_NAME);
            if (file.exists() == false)
                file.createNewFile(); // IOException

            dos = new ObjectOutputStream(new FileOutputStream(file)); // FileNotFoundException
            dos.writeObject(mMap);

        } catch (FileNotFoundException e) {
            log.warn(e);
        } catch (IOException e) {
            log.warn(e);
        } finally {
            if (dos != null) {
                try {
                    dos.flush();

                } catch (IOException e) {
                    log.warn(e);
                }
                try {
                    dos.close();
                } catch (IOException e) {
                    log.warn(e);
                }

                dos = null;
            }
        }
        log.debug("save done");
    }

    @SuppressWarnings("unchecked")
    private void load() {
        File file = new File(CACHE_FILE_NAME);
        if (file.exists() == false) {
            return;
        }

        log.debug("load cache from cache file");

        ObjectInputStream ois = null;
        try {
            ois = new ObjectInputStream(new FileInputStream(file)); // IO, FileNotFound

            this.mMap = (HashMap<Integer, UIEntity>) ois.readObject(); // ClassNotFound

        } catch (FileNotFoundException e) {
            log.warn(e);
        } catch (IOException e) {
            log.warn(e);
            file.delete();
        } catch (ClassNotFoundException e) {
            log.warn(e);
            file.delete();
        } catch (Exception e) {
            log.warn(e);
            file.delete();
        } finally {

            if (ois != null) {
                try {
                    ois.close();
                } catch (IOException e) {
                    log.warn(e);
                }
            }
            ois = null;
        }
    }

    public void setClear() {
        this.mMap.clear();
    }
}