diff common/src/main/java/digilib/io/ImageFile.java @ 903:7779b37d1d05

refactored into maven modules per servlet type. can build servlet-api 2.3 and 3.0 via profile now!
author robcast
date Tue, 26 Apr 2011 20:24:31 +0200
parents servlet/src/main/java/digilib/io/ImageFile.java@ba1eb2d821a2
children
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/common/src/main/java/digilib/io/ImageFile.java	Tue Apr 26 20:24:31 2011 +0200
@@ -0,0 +1,183 @@
+/* ImageFile.java -- digilib image file class.
+
+  Digital Image Library servlet components
+
+  Copyright (C) 2003 Robert Casties (robcast@mail.berlios.de)
+
+  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.
+   
+  Please read license.txt for the full details. A copy of the GPL
+  may be found at http://www.gnu.org/copyleft/lgpl.html
+
+  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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+ * Created on 25.02.2003
+ */
+ 
+package digilib.io;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.RandomAccessFile;
+
+import javax.imageio.stream.FileImageInputStream;
+import javax.imageio.stream.ImageInputStream;
+
+import digilib.servlet.DigilibConfiguration;
+import digilib.util.ImageSize;
+
+/**
+ * @author casties
+ */
+public class ImageFile extends ImageInput {
+	
+	// file
+	private File file = null;
+	// file name
+	private String name = null;
+	// parent directory
+	private Directory dir = null;
+
+	/** Constructor with File.
+	 * 
+	 * @param f
+	 * @param parent
+	 * @param dir
+	 */
+	public ImageFile(File f, ImageSet parent, Directory dir) {
+		this.file = f;
+		this.name = f.getName();
+		this.parent = parent;
+		this.dir = dir;
+	}
+	
+	/** Constructor with filename (without path).
+	 * @param fn
+	 * @param parent
+	 * @param dir
+	 */
+	public ImageFile(String fn, ImageSet parent, Directory dir) {
+		this.name = fn;
+		this.dir = dir;
+		this.file = new File(this.dir.getDir(), fn);
+		this.parent = parent;
+	}
+	
+	
+	/** Checks the image and sets size and type.
+	 * 
+	 */
+	public void check() {
+	    if (pixelSize == null) {
+	        try {
+	            // use the configured toolkit to identify the image
+                DigilibConfiguration.identifyDocuImage(this);
+            } catch (IOException e) {
+                // nothing much to do...
+            }
+	    }
+	}
+	
+	/* (non-Javadoc)
+     * @see digilib.io.ImageInput#getSize()
+     */
+    @Override
+    public ImageSize getSize() {
+        check();
+        return pixelSize;
+    }
+
+    /* (non-Javadoc)
+     * @see digilib.io.ImageInput#getMimetype()
+     */
+    @Override
+    public String getMimetype() {
+        check();
+        return mimetype;
+    }
+
+    /* (non-Javadoc)
+     * @see digilib.io.ImageInput#getAspect()
+     */
+    @Override
+    public float getAspect() {
+        check();
+        return (pixelSize != null) ? pixelSize.getAspect() : 0f;
+    }
+
+    /** Returns the file name (without path).
+	 * 
+	 * @return
+	 */
+	public String getName() {
+		return name;
+	}
+
+	
+	/* (non-Javadoc)
+     * @see digilib.io.ImageInput#hasImageInputStream()
+     */
+    @Override
+    public boolean hasImageInputStream() {
+        return true;
+    }
+
+    /* (non-Javadoc)
+     * @see digilib.io.ImageInput#getImageInputStream()
+     */
+    @Override
+    public ImageInputStream getImageInputStream() {
+        try {
+            RandomAccessFile rf = new RandomAccessFile(file, "r");
+            return new FileImageInputStream(rf);
+        } catch (IOException e) {
+            // what now?
+        }
+        return null;
+    }
+
+    /* (non-Javadoc)
+     * @see digilib.io.ImageInput#hasFile()
+     */
+    @Override
+    public boolean hasFile() {
+        return true;
+    }
+
+    /* (non-Javadoc)
+	 * @see digilib.io.ImageInput#getFile()
+	 */
+	public File getFile() {
+		return file;
+	}
+
+	/* (non-Javadoc)
+	 * @see digilib.io.ImageInput#setSize(digilib.image.ImageSize)
+	 */
+	public void setSize(ImageSize imageSize) {
+		this.pixelSize = imageSize;
+		// pass on to parent
+		if (this.parent != null) {
+			this.parent.setAspect(imageSize);
+		}
+	}
+
+    /* (non-Javadoc)
+     * @see java.lang.Object#toString()
+     */
+    @Override
+    public String toString() {
+        // try to use File.toString
+        if (file != null) {
+            return file.toString();
+        }
+        return super.toString();
+    }
+
+	
+}