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没做啥

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This commit is contained in:
lyy
2016-09-26 22:36:30 +08:00
parent e586168e30
commit e4e80048e7
20 changed files with 305 additions and 231 deletions
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8
.idea/gradle.xml generated
View File

@ -13,7 +13,13 @@
<option value="$PROJECT_DIR$/downloadutil" />
</set>
</option>
<option name="resolveModulePerSourceSet" value="false" />
<option name="myModules">
<set>
<option value="$PROJECT_DIR$" />
<option value="$PROJECT_DIR$/app" />
<option value="$PROJECT_DIR$/downloadutil" />
</set>
</option>
</GradleProjectSettings>
</option>
</component>

2
.idea/misc.xml generated
View File

@ -53,7 +53,7 @@
<ConfirmationsSetting value="0" id="Add" />
<ConfirmationsSetting value="0" id="Remove" />
</component>
<component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
<component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/build/classes" />
</component>
<component name="ProjectType">

1
.idea/modules.xml generated
View File

@ -3,7 +3,6 @@
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/DownloadDemo.iml" filepath="$PROJECT_DIR$/DownloadDemo.iml" />
<module fileurl="file://$PROJECT_DIR$/DownloadUtil.iml" filepath="$PROJECT_DIR$/DownloadUtil.iml" />
<module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
<module fileurl="file://$PROJECT_DIR$/downloadutil/downloadutil.iml" filepath="$PROJECT_DIR$/downloadutil/downloadutil.iml" />
</modules>

9
downloadutil/src/main/java/com/arialyy/downloadutil/core/DownloadCommand.java
View File

@ -1,9 +0,0 @@
package com.arialyy.downloadutil.core;
/**
* Created by lyy on 2016/8/14.
* 命令抽象类
*/
public abstract class DownloadCommand {
}

52
downloadutil/src/main/java/com/arialyy/downloadutil/core/DownloadManager.java
View File

@ -2,15 +2,22 @@ package com.arialyy.downloadutil.core;
import android.content.Context;
import com.arialyy.downloadutil.core.command.IDownloadCommand;
import java.util.ArrayList;
import java.util.List;
/**
* Created by lyy on 2016/8/11.
* 下载管理器，通过命令的方式控制下载
*/
public class DownloadManager {
private static final Object LOCK = new Object();
private static volatile DownloadManager INSTANCE = null;
/**
* 下载开始前事件
*/
public static final String ACTION_PRE = "ACTION_PRE";
public static final String ACTION_PRE = "ACTION_PRE";
/**
* 开始下载事件
@ -57,6 +64,12 @@ public class DownloadManager {
*/
public static final String CURRENT_LOCATION = "CURRENT_LOCATION";
private List<IDownloadCommand> mCommands = new ArrayList<>();
private DownloadManager() {
}
private Context mContext;
private DownloadManager(Context context) {
@ -64,7 +77,42 @@ public class DownloadManager {
}
public static DownloadManager getInstance(Context context) {
return new DownloadManager(context);
if (INSTANCE == null) {
synchronized (LOCK) {
INSTANCE = new DownloadManager(context.getApplicationContext());
}
}
return INSTANCE;
}
/**
* 设置命令
*
* @param command
*/
public void setCommant(IDownloadCommand command) {
mCommands.add(command);
}
/**
* 设置一组命令
*
* @param commands
*/
public void setCommands(List<IDownloadCommand> commands) {
if (commands != null && commands.size() > 0) {
mCommands.addAll(commands);
}
}
/**
* 执行所有设置的命令
*/
public synchronized void exe() {
for (IDownloadCommand command : mCommands) {
command.executeComment();
}
mCommands.clear();
}
}

2
downloadutil/src/main/java/com/arialyy/downloadutil/core/DownloadTarget.java
View File

@ -77,7 +77,7 @@ public class DownloadTarget extends IDownloadTarget {
if (task == null) {
task = mCachePool.getTask(entity.getDownloadUrl());
}
if (task == null){
if (task == null) {
task = createTask(entity);
}
return task;

5
downloadutil/src/main/java/com/arialyy/downloadutil/core/TaskFactory.java
View File

@ -30,9 +30,10 @@ public class TaskFactory {
/**
* 创建普通下载任务
*
* @param context
* @param entity 下载实体
* @param handler {@link com.arialyy.downloadutil.core.IDownloadTarget.AutoTaskHandler}
* @param entity 下载实体
* @param handler {@link com.arialyy.downloadutil.core.IDownloadTarget.AutoTaskHandler}
* @return
*/
public Task createTask(Context context, DownloadEntity entity, Handler handler) {

1
downloadutil/src/main/java/com/arialyy/downloadutil/core/command/AddCommand.java
View File

@ -1,6 +1,7 @@
package com.arialyy.downloadutil.core.command;
import android.content.Context;
import com.arialyy.downloadutil.entity.DownloadEntity;
/**

14
downloadutil/src/main/java/com/arialyy/downloadutil/core/command/CancelCommand.java
View File

@ -1,6 +1,7 @@
package com.arialyy.downloadutil.core.command;
import android.content.Context;
import com.arialyy.downloadutil.entity.DownloadEntity;
/**
@ -9,11 +10,12 @@ import com.arialyy.downloadutil.entity.DownloadEntity;
*/
class CancelCommand extends IDownloadCommand {
CancelCommand(Context context, DownloadEntity entity) {
super(context, entity);
}
CancelCommand(Context context, DownloadEntity entity) {
super(context, entity);
}
@Override public void executeComment() {
target.cancelTask(target.getTask(mEntity));
}
@Override
public void executeComment() {
target.cancelTask(target.getTask(mEntity));
}
}

187
downloadutil/src/main/java/com/arialyy/downloadutil/core/command/CommandFactory.java
View File

@ -1,6 +1,7 @@
package com.arialyy.downloadutil.core.command;
import android.content.Context;
import com.arialyy.downloadutil.entity.DownloadEntity;
/**
@ -8,108 +9,108 @@ import com.arialyy.downloadutil.entity.DownloadEntity;
* 命令工厂
*/
public class CommandFactory {
/**
* 创建任务
*/
public static final int TASK_CREATE = 0x122;
/**
* 启动任务
*/
public static final int TASK_START = 0x123;
/**
* 取消任务
*/
public static final int TASK_CANCEL = 0x124;
/**
* 停止任务
*/
public static final int TASK_STOP = 0x125;
/**
* 获取任务状态
*/
public static final int TASK_STATE = 0x126;
/**
* 创建任务
*/
public static final int TASK_CREATE = 0x122;
/**
* 启动任务
*/
public static final int TASK_START = 0x123;
/**
* 取消任务
*/
public static final int TASK_CANCEL = 0x124;
/**
* 停止任务
*/
public static final int TASK_STOP = 0x125;
/**
* 获取任务状态
*/
public static final int TASK_STATE = 0x126;
private static final Object LOCK = new Object();
private static volatile CommandFactory INSTANCE = null;
private static final Object LOCK = new Object();
private static volatile CommandFactory INSTANCE = null;
private CommandFactory() {
private CommandFactory() {
}
public static CommandFactory getInstance() {
if (INSTANCE == null) {
synchronized (LOCK) {
INSTANCE = new CommandFactory();
}
}
return INSTANCE;
}
/**
* @param context context
* @param entity 下载实体
* @param type 命令类型{@link #TASK_CREATE}、{@link #TASK_START}、{@link #TASK_CANCEL}、{@link
* #TASK_STOP}、{@link #TASK_STATE}
*/
public IDownloadCommand createCommand(Context context, DownloadEntity entity, int type) {
switch (type) {
case TASK_CREATE:
return createAddCommand(context, entity);
case TASK_START:
return createStartCommand(context, entity);
case TASK_CANCEL:
return createCancelCommand(context, entity);
case TASK_STOP:
return createStopCommand(context, entity);
case TASK_STATE:
return createStateCommand(context, entity);
default:
return null;
public static CommandFactory getInstance() {
if (INSTANCE == null) {
synchronized (LOCK) {
INSTANCE = new CommandFactory();
}
}
return INSTANCE;
}
}
/**
* 创建获取任务状态的命令
*
* @return {@link StateCommand}
*/
private StateCommand createStateCommand(Context context, DownloadEntity entity) {
return new StateCommand(context, entity);
}
/**
* @param context context
* @param entity 下载实体
* @param type 命令类型{@link #TASK_CREATE}、{@link #TASK_START}、{@link #TASK_CANCEL}、{@link
* #TASK_STOP}、{@link #TASK_STATE}
*/
public IDownloadCommand createCommand(Context context, DownloadEntity entity, int type) {
switch (type) {
case TASK_CREATE:
return createAddCommand(context, entity);
case TASK_START:
return createStartCommand(context, entity);
case TASK_CANCEL:
return createCancelCommand(context, entity);
case TASK_STOP:
return createStopCommand(context, entity);
case TASK_STATE:
return createStateCommand(context, entity);
default:
return null;
}
}
/**
* 创建停止命令
*
* @return {@link StopCommand}
*/
private StopCommand createStopCommand(Context context, DownloadEntity entity) {
return new StopCommand(context, entity);
}
/**
* 创建获取任务状态的命令
*
* @return {@link StateCommand}
*/
private StateCommand createStateCommand(Context context, DownloadEntity entity) {
return new StateCommand(context, entity);
}
/**
* 创建下载任务命令
*
* @return {@link AddCommand}
*/
private AddCommand createAddCommand(Context context, DownloadEntity entity) {
return new AddCommand(context, entity);
}
/**
* 创建停止命令
*
* @return {@link StopCommand}
*/
private StopCommand createStopCommand(Context context, DownloadEntity entity) {
return new StopCommand(context, entity);
}
/**
* 创建启动下载命令
*
* @return {@link StartCommand}
*/
private StartCommand createStartCommand(Context context, DownloadEntity entity) {
return new StartCommand(context, entity);
}
/**
* 创建下载任务命令
*
* @return {@link AddCommand}
*/
private AddCommand createAddCommand(Context context, DownloadEntity entity) {
return new AddCommand(context, entity);
}
/**
* 创建 取消下载的命令
*
* @return {@link CancelCommand}
*/
private CancelCommand createCancelCommand(Context context, DownloadEntity entity) {
return new CancelCommand(context, entity);
}
/**
* 创建启动下载命令
*
* @return {@link StartCommand}
*/
private StartCommand createStartCommand(Context context, DownloadEntity entity) {
return new StartCommand(context, entity);
}
/**
* 创建 取消下载的命令
*
* @return {@link CancelCommand}
*/
private CancelCommand createCancelCommand(Context context, DownloadEntity entity) {
return new CancelCommand(context, entity);
}
}

15
downloadutil/src/main/java/com/arialyy/downloadutil/core/command/IDownloadCommand.java
View File

@ -8,6 +8,7 @@ import com.arialyy.downloadutil.core.IDownloadTarget;
import com.arialyy.downloadutil.entity.DownloadEntity;
import com.arialyy.downloadutil.help.CheckHelp;
import java.util.List;
/**
@ -16,15 +17,15 @@ import java.util.List;
*/
public abstract class IDownloadCommand {
protected IDownloadTarget target;
protected Context mContext;
protected DownloadEntity mEntity;
protected Context mContext;
protected DownloadEntity mEntity;
/**
* @param context context
* @param entity 下载实体
* @param context context
* @param entity 下载实体
*/
protected IDownloadCommand(Context context, DownloadEntity entity){
if (!CheckHelp.checkDownloadEntity(entity)){
protected IDownloadCommand(Context context, DownloadEntity entity) {
if (!CheckHelp.checkDownloadEntity(entity)) {
return;
}
target = DownloadTarget.getInstance(context);
@ -32,7 +33,7 @@ public abstract class IDownloadCommand {
mEntity = entity;
}
public Context getContext(){
public Context getContext() {
return mContext;
}

3
downloadutil/src/main/java/com/arialyy/downloadutil/core/command/StartCommand.java
View File

@ -1,13 +1,14 @@
package com.arialyy.downloadutil.core.command;
import android.content.Context;
import com.arialyy.downloadutil.entity.DownloadEntity;
/**
* Created by lyy on 2016/8/22.
* 开始命令
*/
class StartCommand extends IDownloadCommand{
class StartCommand extends IDownloadCommand {
StartCommand(Context context, DownloadEntity entity) {
super(context, entity);

22
downloadutil/src/main/java/com/arialyy/downloadutil/core/command/StateCommand.java
View File

@ -1,6 +1,7 @@
package com.arialyy.downloadutil.core.command;
import android.content.Context;
import com.arialyy.downloadutil.entity.DownloadEntity;
/**
@ -9,15 +10,16 @@ import com.arialyy.downloadutil.entity.DownloadEntity;
*/
class StateCommand extends IDownloadCommand {
/**
* @param context context
* @param entity 下载实体
*/
StateCommand(Context context, DownloadEntity entity) {
super(context, entity);
}
/**
* @param context context
* @param entity 下载实体
*/
StateCommand(Context context, DownloadEntity entity) {
super(context, entity);
}
@Override public void executeComment() {
target.getTaskState(mEntity);
}
@Override
public void executeComment() {
target.getTaskState(mEntity);
}
}

22
downloadutil/src/main/java/com/arialyy/downloadutil/core/command/StopCommand.java
View File

@ -1,6 +1,7 @@
package com.arialyy.downloadutil.core.command;
import android.content.Context;
import com.arialyy.downloadutil.entity.DownloadEntity;
/**
@ -9,15 +10,16 @@ import com.arialyy.downloadutil.entity.DownloadEntity;
*/
class StopCommand extends IDownloadCommand {
/**
* @param context context
* @param entity 下载实体
*/
StopCommand(Context context, DownloadEntity entity) {
super(context, entity);
}
/**
* @param context context
* @param entity 下载实体
*/
StopCommand(Context context, DownloadEntity entity) {
super(context, entity);
}
@Override public void executeComment() {
target.stopTask(target.getTask(mEntity));
}
@Override
public void executeComment() {
target.stopTask(target.getTask(mEntity));
}
}

9
downloadutil/src/main/java/com/arialyy/downloadutil/core/inf/ITask.java
View File

@ -12,7 +12,7 @@ public interface ITask {
/**
* 创建一个新的下载任务，创建时只是将新任务存储到缓存池
*
* @param entity 下载实体{@link DownloadEntity}
* @param entity 下载实体{@link DownloadEntity}
* @return {@link Task}
*/
public Task createTask(DownloadEntity entity);
@ -20,7 +20,7 @@ public interface ITask {
/**
* 通过下载链接从缓存池或任务池搜索下载任务，如果缓存池或任务池都没有任务，则创建新任务
*
* @param entity 下载实体{@link DownloadEntity}
* @param entity 下载实体{@link DownloadEntity}
* @return {@link Task}
*/
public Task getTask(DownloadEntity entity);
@ -28,14 +28,15 @@ public interface ITask {
/**
* 通过下载链接搜索下载任务
*
* @param entity 下载实体{@link DownloadEntity}
* @param entity 下载实体{@link DownloadEntity}
* @return {@code -1 ==> 错误}，{@link com.arialyy.downloadutil.entity.DownloadEntity#STATE_FAIL}
*/
public int getTaskState(DownloadEntity entity);
/**
* 通过下载链接删除任务
* @param entity 下载实体{@link DownloadEntity}
*
* @param entity 下载实体{@link DownloadEntity}
*/
public void removeTask(DownloadEntity entity);

6
downloadutil/src/main/java/com/arialyy/downloadutil/core/pool/CachePool.java
View File

@ -78,7 +78,7 @@ public class CachePool implements IPool {
Log.e(TAG, "请传入有效的下载链接");
return null;
}
String key = Util.keyToHashKey(downloadUrl);
String key = Util.keyToHashKey(downloadUrl);
return mCacheArray.get(key);
}
}
@ -104,8 +104,8 @@ public class CachePool implements IPool {
Log.e(TAG, "请传入有效的下载链接");
return false;
}
String key = Util.keyToHashKey(downloadUrl);
Task task = mCacheArray.get(key);
String key = Util.keyToHashKey(downloadUrl);
Task task = mCacheArray.get(key);
mCacheArray.remove(key);
return mCacheQueue.remove(task);
}

2
downloadutil/src/main/java/com/arialyy/downloadutil/core/pool/ExecutePool.java
View File

@ -119,7 +119,7 @@ public class ExecutePool implements IPool {
Log.e(TAG, "请传入有效的下载链接");
return null;
}
String key = Util.keyToHashKey(downloadUrl);
String key = Util.keyToHashKey(downloadUrl);
return mExecuteArray.get(key);
}
}

66
downloadutil/src/main/java/com/arialyy/downloadutil/help/CheckHelp.java
View File

@ -4,8 +4,10 @@ import android.app.Application;
import android.content.res.Resources;
import android.text.TextUtils;
import android.util.Log;
import com.arialyy.downloadutil.R;
import com.arialyy.downloadutil.entity.DownloadEntity;
import java.io.File;
/**
@ -13,38 +15,38 @@ import java.io.File;
* 检查帮助类
*/
public class CheckHelp {
private static final String TAG = "CheckHelp";
private static final String TAG = "CheckHelp";
/**
* 检测下载实体是否合法
*
* @param entity 下载实体
* @return 合法(true)
*/
public static boolean checkDownloadEntity(DownloadEntity entity) {
if (entity == null) {
Log.w(TAG, Resources.getSystem().getString(R.string.error_entity_null));
return false;
} else if (TextUtils.isEmpty(entity.getDownloadUrl())) {
Log.w(TAG, Resources.getSystem().getString(R.string.error_download_url_null));
return false;
} else if (TextUtils.isEmpty(entity.getFileName())){
Log.w(TAG, Resources.getSystem().getString(R.string.error_file_name_null));
return false;
} else if (TextUtils.isEmpty(entity.getDownloadPath())){
Log.w(TAG, Resources.getSystem().getString(R.string.error_file_name_null));
return false;
/**
* 检测下载实体是否合法
*
* @param entity 下载实体
* @return 合法(true)
*/
public static boolean checkDownloadEntity(DownloadEntity entity) {
if (entity == null) {
Log.w(TAG, Resources.getSystem().getString(R.string.error_entity_null));
return false;
} else if (TextUtils.isEmpty(entity.getDownloadUrl())) {
Log.w(TAG, Resources.getSystem().getString(R.string.error_download_url_null));
return false;
} else if (TextUtils.isEmpty(entity.getFileName())) {
Log.w(TAG, Resources.getSystem().getString(R.string.error_file_name_null));
return false;
} else if (TextUtils.isEmpty(entity.getDownloadPath())) {
Log.w(TAG, Resources.getSystem().getString(R.string.error_file_name_null));
return false;
}
String fileName = entity.getFileName();
if (fileName.contains(" ")) {
fileName = fileName.replace(" ", "_");
}
String dPath = entity.getDownloadPath();
File file = new File(dPath);
if (file.isDirectory()) {
dPath += fileName;
entity.setDownloadPath(dPath);
}
return true;
}
String fileName = entity.getFileName();
if (fileName.contains(" ")){
fileName = fileName.replace(" ", "_");
}
String dPath = entity.getDownloadPath();
File file = new File(dPath);
if (file.isDirectory()){
dPath += fileName;
entity.setDownloadPath(dPath);
}
return true;
}
}

37
downloadutil/src/main/java/com/arialyy/downloadutil/orm/DbUtil.java
View File

@ -1,4 +1,5 @@
package com.arialyy.downloadutil.orm;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.support.annotation.NonNull;
@ -13,17 +14,17 @@ import java.lang.reflect.Field;
* 数据库操作工具
*/
public class DbUtil {
private static final String TAG = "DbUtil";
private volatile static DbUtil mDbUtil = null;
private int CREATE_TABLE = 0;
private int TABLE_EXISTS = 1;
private int INSERT_DATA = 2;
private int MODIFY_DATA = 3;
private int FIND_DATA = 4;
private int FIND_ALL_DATA = 5;
private int DEL_DATA = 6;
private int ROW_ID = 7;
private static final Object LOCK = new Object();
private static final String TAG = "DbUtil";
private volatile static DbUtil mDbUtil = null;
private int CREATE_TABLE = 0;
private int TABLE_EXISTS = 1;
private int INSERT_DATA = 2;
private int MODIFY_DATA = 3;
private int FIND_DATA = 4;
private int FIND_ALL_DATA = 5;
private int DEL_DATA = 6;
private int ROW_ID = 7;
private static final Object LOCK = new Object();
private SQLiteDatabase mDb;
private DbUtil() {
@ -73,8 +74,8 @@ public class DbUtil {
* 修改某行数据
*/
protected void modifyData(DbEntity dbEntity) {
Class<?> clazz = dbEntity.getClass();
Field[] fields = Util.getFields(clazz);
Class<?> clazz = dbEntity.getClass();
Field[] fields = Util.getFields(clazz);
if (fields != null && fields.length > 0) {
StringBuilder sb = new StringBuilder();
sb.append("UPDATE ").append(Util.getClassName(dbEntity)).append(" SET ");
@ -136,8 +137,8 @@ public class DbUtil {
* 插入数据
*/
protected void insertData(DbEntity dbEntity) {
Class<?> clazz = dbEntity.getClass();
Field[] fields = Util.getFields(clazz);
Class<?> clazz = dbEntity.getClass();
Field[] fields = Util.getFields(clazz);
if (fields != null && fields.length > 0) {
StringBuilder sb = new StringBuilder();
sb.append("INSERT INTO ").append(Util.getClassName(dbEntity)).append("(");
@ -214,7 +215,7 @@ public class DbUtil {
sb.append("create table ")
.append(Util.getClassName(dbEntity))
.append("(");
int i = 0;
int i = 0;
int ignoreNum = 0;
for (Field field : fields) {
i++;
@ -322,8 +323,8 @@ public class DbUtil {
i++;
}
print(ROW_ID, sb.toString());
Cursor c = mDb.rawQuery(sb.toString(), null);
int id = c.getColumnIndex("rowid");
Cursor c = mDb.rawQuery(sb.toString(), null);
int id = c.getColumnIndex("rowid");
c.close();
return id;
}

73
downloadutil/src/main/java/com/arialyy/downloadutil/util/DownLoadUtil.java
View File

@ -13,6 +13,7 @@ import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Properties;
/**
* Created by lyy on 2015/8/25.
* 下载工具类
@ -24,24 +25,27 @@ public class DownLoadUtil {
/**
* 线程数
*/
private static final int THREAD_NUM = 3;
private static final int THREAD_NUM = 3;
/**
* 已经完成下载任务的线程数量
*/
private int mCompleteThreadNum = 0;
private int mCompleteThreadNum = 0;
private long mCurrentLocation;
private boolean isDownloading = false;
private boolean isStop = false;
private boolean isCancel = false;
private static final int TIME_OUT = 5000; //超时时间
private boolean isDownloading = false;
private boolean isStop = false;
private boolean isCancel = false;
private static final int TIME_OUT = 5000; //超时时间
boolean isNewTask = true;
private int mCancelNum = 0;
private int mStopNum = 0;
private int mStopNum = 0;
public DownLoadUtil() {
}
public IDownloadListener getListener(){
public IDownloadListener getListener() {
return mListener;
}
/**
* 获取当前下载位置
*
@ -50,21 +54,25 @@ public class DownLoadUtil {
public long getCurrentLocation() {
return mCurrentLocation;
}
public boolean isDownloading() {
return isDownloading;
}
/**
* 取消下载
*/
public void cancelDownload() {
isCancel = true;
}
/**
* 停止下载
*/
public void stopDownload() {
isStop = true;
}
/**
* 多线程断点续传下载文件，暂停和继续
*
@ -101,7 +109,7 @@ public class DownLoadUtil {
public void run() {
try {
mListener = downloadListener;
URL url = new URL(downloadUrl);
URL url = new URL(downloadUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
conn.setRequestProperty("Charset", "UTF-8");
@ -140,16 +148,16 @@ public class DownLoadUtil {
}
}
}
int blockSize = fileLength / THREAD_NUM;
SparseArray<Thread> tasks = new SparseArray<>();
int[] recordL = new int[THREAD_NUM];
int rl = 0;
int blockSize = fileLength / THREAD_NUM;
SparseArray<Thread> tasks = new SparseArray<>();
int[] recordL = new int[THREAD_NUM];
int rl = 0;
for (int i = 0; i < THREAD_NUM; i++) {
recordL[i] = -1;
}
for (int i = 0; i < THREAD_NUM; i++) {
long startL = i * blockSize, endL = (i + 1) * blockSize;
Object state = pro.getProperty(dFile.getName() + "_state_" + i);
long startL = i * blockSize, endL = (i + 1) * blockSize;
Object state = pro.getProperty(dFile.getName() + "_state_" + i);
if (state != null && Integer.parseInt(state + "") == 1) { //该线程已经完成
mCurrentLocation += endL - startL;
Log.d(TAG, "++++++++++ 线程_" + i + "_已经下载完成 ++++++++++");
@ -176,7 +184,7 @@ public class DownLoadUtil {
startL = r;
recordL[rl] = i;
rl++;
}else {
} else {
isNewTask = true;
}
if (isNewTask) {
@ -187,7 +195,7 @@ public class DownLoadUtil {
endL = fileLength;//如果整个文件的大小不为线程个数的整数倍，则最后一个线程的结束位置即为文件的总长度
}
DownloadEntity entity = new DownloadEntity(context, fileLength, downloadUrl, dFile, i, startL, endL);
DownLoadTask task = new DownLoadTask(entity);
DownLoadTask task = new DownLoadTask(entity);
tasks.put(i, new Thread(task));
}
if (mCurrentLocation > 0) {
@ -211,30 +219,34 @@ public class DownLoadUtil {
}
}).start();
}
private void failDownload(String msg){
private void failDownload(String msg) {
Log.e(TAG, msg);
isDownloading = false;
stopDownload();
mListener.onFail();
System.gc();
}
/**
* 多线程下载任务类,不能使用AsyncTask来进行多线程下载，因为AsyncTask是串行执行的，这种方式下载速度太慢了
*/
private class DownLoadTask implements Runnable {
private static final String TAG = "DownLoadTask";
private DownloadEntity dEntity;
private String configFPath;
private String configFPath;
public DownLoadTask(DownloadEntity downloadInfo) {
this.dEntity = downloadInfo;
configFPath = dEntity.context.getFilesDir().getPath() + "/temp/" + dEntity.tempFile.getName() + ".properties";
}
@Override
public void run() {
long currentLocation = 0;
try {
Log.d(TAG, "线程_" + dEntity.threadId + "_正在下载【" + "开始位置 : " + dEntity.startLocation + "，结束位置：" + dEntity.endLocation + "】");
URL url = new URL(dEntity.downloadUrl);
URL url = new URL(dEntity.downloadUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
//在头里面请求下载开始位置和结束位置
conn.setRequestProperty("Range", "bytes=" + dEntity.startLocation + "-" + dEntity.endLocation);
@ -250,7 +262,7 @@ public class DownLoadUtil {
//设置每条线程写入文件的位置
file.seek(dEntity.startLocation);
byte[] buffer = new byte[1024];
int len;
int len;
//当前子线程的下载位置
currentLocation = dEntity.startLocation;
while ((len = is.read(buffer)) != -1) {
@ -353,30 +365,33 @@ public class DownLoadUtil {
}
}
}
/**
* 将记录写入到配置文件
*
* @param record
*/
private void writeConfig(String key, String record) throws IOException {
File configFile = new File(configFPath);
Properties pro = Util.loadConfig(configFile);
File configFile = new File(configFPath);
Properties pro = Util.loadConfig(configFile);
pro.setProperty(key, record);
Util.saveConfig(configFile, pro);
}
}
/**
* 子线程下载信息类
*/
private class DownloadEntity {
//文件大小
long fileSize;
String downloadUrl;
int threadId;
long startLocation;
long endLocation;
File tempFile;
long fileSize;
String downloadUrl;
int threadId;
long startLocation;
long endLocation;
File tempFile;
Context context;
public DownloadEntity(Context context, long fileSize, String downloadUrl, File file, int threadId, long startLocation, long endLocation) {
this.fileSize = fileSize;
this.downloadUrl = downloadUrl;