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34 package info.magnolia.ui.mediaeditor.action;
35
36 import info.magnolia.event.EventBus;
37 import info.magnolia.ui.api.action.AbstractAction;
38 import info.magnolia.ui.mediaeditor.MediaEditorEventBus;
39 import info.magnolia.ui.mediaeditor.data.EditHistoryTrackingProperty;
40 import info.magnolia.ui.mediaeditor.provider.MediaEditorActionDefinition;
41
42 import java.awt.image.BufferedImage;
43 import java.io.ByteArrayInputStream;
44 import java.io.ByteArrayOutputStream;
45 import java.io.IOException;
46 import java.io.InputStream;
47
48 import javax.imageio.ImageIO;
49 import javax.inject.Named;
50
51 import org.apache.commons.io.IOUtils;
52 import org.slf4j.Logger;
53 import org.slf4j.LoggerFactory;
54
55
56
57
58 public abstract class MediaEditorAction extends AbstractAction<MediaEditorActionDefinition> {
59 private static final Logger log = LoggerFactory.getLogger(MediaEditorAction.class);
60
61 protected final static String DEFAULT_FORMAT = "png";
62
63 protected EditHistoryTrackingProperty dataSource;
64
65 protected EventBus eventBus;
66
67 public MediaEditorAction(MediaEditorActionDefinition definition, EditHistoryTrackingProperty dataSource, @Named(MediaEditorEventBus.NAME) EventBus eventBus) {
68 super(definition);
69 this.dataSource = dataSource;
70 this.eventBus = eventBus;
71 }
72
73 protected InputStream createStreamSource(final BufferedImage img, final String formatName) {
74 ByteArrayOutputStream out2 = null;
75 try {
76 if (img == null) {
77 return null;
78 }
79 out2 = new ByteArrayOutputStream();
80 ImageIO.write(img, formatName, out2);
81 return new ByteArrayInputStream(out2.toByteArray());
82 } catch (IOException e) {
83 log.error("Error occurred while creating image stream: " + e.getMessage(), e);
84 } finally {
85 IOUtils.closeQuietly(out2);
86 }
87 return null;
88 }
89 }