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zm

2020-05-18 a18bfacbf56b401f6e0fdae8710fbca4df8cff77

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package cn.autoform.web.controller.resumable.util;
 
import java.io.*;
import java.util.HashMap;
 
/**
 * by fanxu
 */
public class ResumableInfoStorage {
 
    //Single instance
    private ResumableInfoStorage() {
    }
    private static ResumableInfoStorage sInstance;
 
    public static synchronized ResumableInfoStorage getInstance() {
        if (sInstance == null) {
            sInstance = new ResumableInfoStorage();
        }
        return sInstance;
    }
 
    //resumableIdentifier --  ResumableInfo
    private HashMap<String, ResumableInfo> mMap = new HashMap<String, ResumableInfo>();
 
    /**
     * Get ResumableInfo from mMap or Create a new one.
     * @param resumableChunkSize
     * @param resumableTotalSize
     * @param resumableIdentifier
     * @param resumableFilename
     * @param resumableRelativePath
     * @param resumableFilePath
     * @return
     */
    public synchronized ResumableInfo get(int resumableChunkSize, long resumableTotalSize,
                             String resumableIdentifier, String resumableFilename,
                             String resumableRelativePath, String resumableFilePath) {
 
        ResumableInfo info = mMap.get(resumableIdentifier);
 
        if (info == null) {
            info = new ResumableInfo();
 
            info.resumableChunkSize     = resumableChunkSize;
            info.resumableTotalSize     = resumableTotalSize;
            info.resumableIdentifier    = resumableIdentifier;
            info.resumableFilename      = resumableFilename;
            info.resumableRelativePath  = resumableRelativePath;
            info.resumableFilePath      = resumableFilePath;
 
            mMap.put(resumableIdentifier, info);
        }
        return info;
    }
 
    /**
     * ɾ��ResumableInfo
     * @param info
     */
    public void remove(ResumableInfo info) {
       mMap.remove(info.resumableIdentifier);
    }
}