com.jaeksoft.searchlib.crawler.web.screenshot.ScreenshotThread Maven / Gradle / Ivy
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Show all versions of opensearchserver Show documentation
OpenSearchServer is a powerful, enterprise-class, search engine program. Using the web user interface, the crawlers (web, file, database, ...) and the REST/RESTFul API you will be able to integrate quickly and easily advanced full-text search capabilities in your application. OpenSearchServer runs on Windows and Linux/Unix/BSD.
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/**
* License Agreement for OpenSearchServer
*
* Copyright (C) 2011-2013 Emmanuel Keller / Jaeksoft
*
* http://www.open-search-server.com
*
* This file is part of OpenSearchServer.
*
* OpenSearchServer 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 3 of the License, or
* (at your option) any later version.
*
* OpenSearchServer 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 OpenSearchServer.
* If not, see {
private final URL url;
private final Dimension capture;
private final Dimension resize;
private final int reductionPercent;
private final BrowserDriverEnum browserDriverEnum;
private final ScreenshotManager screenshotManager;
private final boolean visiblePartOnly;
private volatile BrowserDriver browserDriver;
private volatile BufferedImage finalImage;
private final CredentialItem credentialItem;
private final int waitSec;
private final SimpleLock lock = new SimpleLock();
public ScreenshotThread(Config config, ScreenshotManager screenshotManager,
URL url, CredentialItem credentialItem,
BrowserDriverEnum browserDriverEnum) {
super(config, null, null, null);
this.browserDriverEnum = browserDriverEnum;
this.url = url;
this.screenshotManager = screenshotManager;
this.capture = screenshotManager.getCaptureDimension();
this.resize = screenshotManager.getResizeDimension();
this.credentialItem = credentialItem;
this.waitSec = 0;
this.reductionPercent = 100;
this.visiblePartOnly = true;
}
public ScreenshotThread(Dimension capture, int reduction,
boolean visiblePartOnly, URL url, int waitSec,
BrowserDriverEnum browserDriverEnum) {
super(null, null, null, null);
this.browserDriverEnum = browserDriverEnum;
this.url = url;
this.screenshotManager = null;
this.credentialItem = null;
this.capture = capture;
this.resize = null;
this.waitSec = waitSec;
this.reductionPercent = reduction;
this.visiblePartOnly = visiblePartOnly;
browserDriver = null;
finalImage = null;
}
private final void initDriver() throws SearchLibException {
lock.rl.lock();
try {
browserDriver = browserDriverEnum.getNewInstance();
browserDriver.setTimeouts(60, 60);
browserDriver.setSize(capture.width, capture.height);
} catch (InstantiationException e) {
throw new SearchLibException(e);
} catch (IllegalAccessException e) {
throw new SearchLibException(e);
} finally {
lock.rl.unlock();
}
}
@Override
public void runner() throws Exception {
try {
initDriver();
String sUrl;
if (credentialItem != null) {
sUrl = new URI(url.getProtocol(),
credentialItem.getURLUserInfo(), url.getHost(),
url.getPort(), url.getPath(), url.getQuery(),
url.getRef()).toString();
} else
sUrl = url.toExternalForm();
browserDriver.get(sUrl);
if (waitSec > 0)
sleepSec(waitSec);
BufferedImage image = browserDriver.getScreenshot();
if (visiblePartOnly)
image = ImageUtils.getSubimage(image, 0, 0, capture.width,
capture.height);
if (resize != null)
image = ImageUtils.reduceImage(image, resize.width,
resize.height);
if (reductionPercent < 100)
image = ImageUtils.reduceImage(image, reductionPercent);
if (screenshotManager != null)
screenshotManager.store(url, image);
finalImage = image;
} finally {
release();
}
}
public BufferedImage getImage() {
return finalImage;
}
@Override
public void release() {
lock.rl.lock();
try {
if (browserDriver == null)
return;
browserDriver.close();
} catch (IOException e) {
Logging.warn(e);
} finally {
lock.rl.unlock();
}
}
}