lyy
8 years ago
parent
bba0ccbdb1
commit
af40d3049d
@ -0,0 +1,150 @@ |
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package com.arialyy.downloadutil.entity; |
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import android.os.Parcel; |
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import android.os.Parcelable; |
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/** |
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* Created by lyy on 2015/12/25. |
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* 下载实体 |
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*/ |
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public class DownloadEntity implements Parcelable, Cloneable { |
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/** |
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* 其它状态 |
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*/ |
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public static final int STATE_OTHER = 7; |
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/** |
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* 失败状态 |
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*/ |
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public static final int STATE_FAIL = 0; |
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/** |
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* 完成状态 |
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*/ |
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public static final int STATE_COMPLETE = 1; |
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/** |
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* 停止状态 |
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*/ |
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public static final int STATE_STOP = 2; |
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/** |
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* 未开始状态 |
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*/ |
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public static final int STATE_WAIT = 3; |
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/** |
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* 未完成状态 |
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*/ |
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public static final int STATE_UN_COMPLETE = 4; |
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/** |
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* 下载中 |
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*/ |
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public static final int STATE_DOWNLOAD_ING = 5; |
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private String downloadUrl; //下载路径
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private String downloadPath; //保存路径
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private long completeTime; //完成时间
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private long fileSize = 1; |
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private int state = STATE_WAIT; |
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private boolean isDownloadComplete = false; //是否下载完成
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private long currentProgress = 0; //当前下载进度
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public String getDownloadUrl() { |
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return downloadUrl; |
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} |
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public long getCompleteTime() { |
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return completeTime; |
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} |
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public void setCompleteTime(long completeTime) { |
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this.completeTime = completeTime; |
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} |
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public void setDownloadUrl(String downloadUrl) { |
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this.downloadUrl = downloadUrl; |
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} |
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public String getDownloadPath() { |
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return downloadPath; |
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} |
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public void setDownloadPath(String downloadPath) { |
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this.downloadPath = downloadPath; |
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} |
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public long getFileSize() { |
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return fileSize; |
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} |
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public void setFileSize(long fileSize) { |
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this.fileSize = fileSize; |
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} |
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public int getState() { |
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return state; |
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} |
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public void setState(int state) { |
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this.state = state; |
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} |
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public boolean isDownloadComplete() { |
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return isDownloadComplete; |
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} |
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public void setDownloadComplete(boolean downloadComplete) { |
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isDownloadComplete = downloadComplete; |
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} |
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public long getCurrentProgress() { |
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return currentProgress; |
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} |
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public void setCurrentProgress(long currentProgress) { |
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this.currentProgress = currentProgress; |
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} |
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@Override |
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public DownloadEntity clone() throws CloneNotSupportedException { |
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return (DownloadEntity) super.clone(); |
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} |
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public DownloadEntity() { |
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} |
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@Override |
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public int describeContents() { |
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return 0; |
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} |
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@Override |
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public void writeToParcel(Parcel dest, int flags) { |
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dest.writeString(this.downloadUrl); |
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dest.writeString(this.downloadPath); |
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dest.writeLong(this.completeTime); |
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dest.writeLong(this.fileSize); |
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dest.writeInt(this.state); |
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dest.writeByte(this.isDownloadComplete ? (byte) 1 : (byte) 0); |
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dest.writeLong(this.currentProgress); |
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} |
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protected DownloadEntity(Parcel in) { |
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this.downloadUrl = in.readString(); |
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this.downloadPath = in.readString(); |
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this.completeTime = in.readLong(); |
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this.fileSize = in.readLong(); |
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this.state = in.readInt(); |
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this.isDownloadComplete = in.readByte() != 0; |
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this.currentProgress = in.readLong(); |
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} |
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public static final Creator<DownloadEntity> CREATOR = new Creator<DownloadEntity>() { |
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@Override |
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public DownloadEntity createFromParcel(Parcel source) { |
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return new DownloadEntity(source); |
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} |
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@Override |
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public DownloadEntity[] newArray(int size) { |
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return new DownloadEntity[size]; |
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} |
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}; |
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} |
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@ -0,0 +1,163 @@ |
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package com.arialyy.downloadutil.util; |
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import android.content.ContentValues; |
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import android.content.Context; |
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import android.database.Cursor; |
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import android.database.sqlite.SQLiteDatabase; |
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import android.database.sqlite.SQLiteOpenHelper; |
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import android.support.annotation.NonNull; |
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import com.arialyy.downloadutil.entity.DownloadEntity; |
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import java.util.ArrayList; |
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import java.util.List; |
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/** |
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* Created by lyy on 2016/8/11. |
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* 数据库帮助类 |
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*/ |
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public class SQLHelper extends SQLiteOpenHelper { |
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public static final String DB_NAME = "ARIA_LYY_DB"; |
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public static final String TABLE_NAME = "ARIA_LYY_DOWNLOAD"; |
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public SQLHelper(Context context) { |
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this(context, DB_NAME, null, 1); |
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} |
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private SQLHelper(Context context, String name, SQLiteDatabase.CursorFactory factory, int version) { |
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super(context, name, factory, version); |
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} |
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@Override |
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public void onCreate(SQLiteDatabase db) { |
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String sql = "create table " + TABLE_NAME + "(" + |
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"url varchar PRIMARY KEY, " + |
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"path varchar, " + |
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"completeTime interger, " + |
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"fileSize interger, " + |
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"state smallint , " + |
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"isDownloadComplete smallint, " + |
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"currentProgress interger" + |
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")"; |
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db.execSQL(sql); |
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} |
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@Override |
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public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { |
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} |
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/** |
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* 获取所有下载实体 |
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*/ |
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public List<DownloadEntity> getAllEntity(@NonNull SQLiteDatabase db) { |
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List<DownloadEntity> list = new ArrayList<>(); |
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Cursor c = db.query(TABLE_NAME, null, null, null, null, null, null); |
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if (c.moveToFirst()) { |
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while (c.moveToNext()) { |
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list.add(cursor2Entity(c)); |
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} |
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} |
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c.close(); |
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return list; |
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} |
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/** |
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* 更新下载实体 |
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*/ |
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public void updateEntity(@NonNull SQLiteDatabase db, DownloadEntity entity) { |
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String whereClause = "url=?"; |
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String[] whereArgs = {entity.getDownloadUrl()}; |
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db.update(TABLE_NAME, createCv(entity), whereClause, whereArgs); |
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} |
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/** |
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* 删除下载实体 |
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*/ |
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public void delEntity(@NonNull SQLiteDatabase db, DownloadEntity entity) { |
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delEntity(db, entity.getDownloadUrl()); |
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} |
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/** |
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* 通过下载链接删除下载实体 |
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*/ |
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public void delEntity(@NonNull SQLiteDatabase db, String downloadUrl) { |
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String whereClause = "url=?"; |
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String[] whereArgs = {downloadUrl}; |
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db.delete(TABLE_NAME, whereClause, whereArgs); |
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} |
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/** |
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* 通过下载链接查找下载实体 |
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* |
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* @param downloadUrl |
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* @return |
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*/ |
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public DownloadEntity findEntity(@NonNull SQLiteDatabase db, @NonNull String downloadUrl) { |
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DownloadEntity entity; |
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String sql = "select * from " + TABLE_NAME + "where url=?"; |
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Cursor c = db.rawQuery(sql, new String[]{downloadUrl}); |
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if (c.getCount() <= 0) { |
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c.close(); |
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return null; |
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} else { |
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c.moveToFirst(); |
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entity = cursor2Entity(c); |
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} |
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c.close(); |
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return entity; |
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} |
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/** |
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* 存储下载实体 |
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* |
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* @param entity |
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*/ |
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public void savaEntity(@NonNull SQLiteDatabase db, @NonNull DownloadEntity entity) { |
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DownloadEntity temp = findEntity(db, entity.getDownloadUrl()); |
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if (temp == null) { |
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db.insert(TABLE_NAME, null, createCv(entity)); |
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} else { |
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updateEntity(db, entity); |
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} |
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} |
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/** |
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* 游标转实体 |
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* |
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* @param c |
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* @return |
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*/ |
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private DownloadEntity cursor2Entity(Cursor c) { |
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DownloadEntity entity; |
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entity = new DownloadEntity(); |
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entity.setDownloadUrl(c.getString(c.getColumnIndex("url"))); |
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entity.setDownloadPath(c.getString(c.getColumnIndex("path"))); |
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entity.setCompleteTime(c.getLong(c.getColumnIndex("completeTime"))); |
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entity.setFileSize(c.getLong(c.getColumnIndex("fileSize"))); |
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entity.setState(c.getInt(c.getColumnIndex("state"))); |
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// 0 ==> false, 1 ==> true
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entity.setDownloadComplete(c.getInt(c.getColumnIndex("isDownloadComplete")) == 0); |
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entity.setCurrentProgress(c.getLong(c.getColumnIndex("currentProgress"))); |
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return entity; |
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} |
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/** |
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* 创建ContentValues |
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* |
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* @param entity |
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* @return |
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*/ |
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private ContentValues createCv(@NonNull DownloadEntity entity) { |
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ContentValues cv = new ContentValues(); |
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cv.put("url", entity.getDownloadUrl()); |
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cv.put("path", entity.getDownloadPath()); |
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cv.put("completeTime", entity.getCompleteTime()); |
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cv.put("fileSize", entity.getFileSize()); |
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cv.put("state", entity.getState()); |
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// 0 ==> false, 1 ==> true
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cv.put("isDownloadComplete", entity.isDownloadComplete() ? 1 : 0); |
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cv.put("currentProgress", entity.getCurrentProgress()); |
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return cv; |
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} |
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} |
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