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Code Issues Releases Wiki Activity

ItemsLoadingRunnable has been extracted from NetworkCatalogActions$ExpandCatalogRunnable

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git-svn-id: https://only.mawhrin.net/repos/FBReaderJ/trunk@1316 6a642e6f-84f6-412e-ac94-c4a38d5a04b0
This commit is contained in:
Vasiliy Bout 2010-04-30 10:13:43 +00:00
parent 3b86bc28ff
commit 4ee8bd4db2
2 changed files with 91 additions and 34 deletions
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76
src/org/geometerplus/android/fbreader/network/ItemsLoadingRunnable.java Normal file
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/*
* Copyright (C) 2010 Geometer Plus <contact@geometerplus.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
package org.geometerplus.android.fbreader.network;
import java.util.concurrent.atomic.AtomicBoolean;
import org.geometerplus.fbreader.network.NetworkOperationData;
import org.geometerplus.fbreader.network.NetworkLibraryItem;
abstract class ItemsLoadingRunnable implements Runnable {
public final AtomicBoolean InterruptFlag = new AtomicBoolean();
private final ItemsLoadingHandler myHandler;
private final long myUpdateInterval; // in milliseconds
private final int myItemsLimit;
public ItemsLoadingRunnable(ItemsLoadingHandler handler) {
this(handler, 1000, 250);
}
public ItemsLoadingRunnable(ItemsLoadingHandler handler, long updateIntervalMillis, int itemsLimit) {
myHandler = handler;
myUpdateInterval = updateIntervalMillis;
myItemsLimit = itemsLimit;
}
public abstract String doBefore();
public abstract String doLoading(NetworkOperationData.OnNewItemListener doWithListener);
public final void run() {
String err = doBefore();
if (err != null) {
myHandler.sendFinish(err);
return;
}
err = doLoading(new NetworkOperationData.OnNewItemListener() {
private long myUpdateTime;
private int myItemsNumber;
public boolean onNewItem(NetworkLibraryItem item) {
myHandler.addItem(item);
if (InterruptFlag.get() || myItemsNumber++ >= myItemsLimit) {
return true;
}
final long now = System.currentTimeMillis();
if (now > myUpdateTime) {
myHandler.sendUpdateItems();
myUpdateTime = now + myUpdateInterval;
}
return false;
}
});
myHandler.sendUpdateItems();
myHandler.ensureFinish();
myHandler.sendFinish(err);
}
}