/* | |
* Licensed to the Apache Software Foundation (ASF) under one or more | |
* contributor license agreements. See the NOTICE file distributed with | |
* this work for additional information regarding copyright ownership. | |
* The ASF licenses this file to You under the Apache License, Version 2.0 | |
* (the "License"); you may not use this file except in compliance with | |
* the License. You may obtain a copy of the License at | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
*/ | |
package org.apache.karaf.diagnostic.demo; | |
import java.awt.DisplayMode; | |
import java.awt.GraphicsDevice; | |
import java.awt.GraphicsEnvironment; | |
import java.awt.Rectangle; | |
import java.awt.Robot; | |
import java.awt.image.BufferedImage; | |
import java.io.OutputStream; | |
import javax.imageio.ImageIO; | |
import org.apache.karaf.diagnostic.core.DumpDestination; | |
import org.apache.karaf.diagnostic.core.DumpProvider; | |
/** | |
* This demo provider creates images in dump destination which | |
* contains screenshots from all attached displays. | |
*/ | |
public class ScreenshotDumpProvider implements DumpProvider { | |
/** | |
* {@inheritDoc} | |
*/ | |
public void createDump(DumpDestination destination) throws Exception { | |
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); | |
// get all graphic devices attached to computer | |
GraphicsDevice[] gs = ge.getScreenDevices(); | |
// create dump entry for each device | |
for (int i=0; i < gs.length; i++) { | |
DisplayMode mode = gs[i].getDisplayMode(); | |
Rectangle bounds = new Rectangle(0, 0, mode.getWidth(), mode.getHeight()); | |
BufferedImage screenshot = new Robot(gs[i]).createScreenCapture(bounds); | |
// to attach your entry to destination you have to execute this line | |
OutputStream outputStream = destination.add("screenshot/display_" + i + ".png"); | |
ImageIO.write(screenshot, "PNG", outputStream); | |
outputStream.close(); | |
} | |
} | |
} |