/*
* JBoss, Home of Professional Open Source
* Copyright 2013, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.richfaces.photoalbum.ui;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.Serializable;
import javax.enterprise.context.RequestScoped;
import javax.inject.Inject;
import javax.inject.Named;
import org.richfaces.photoalbum.manager.FileManager;
import org.richfaces.photoalbum.util.Constants;
@Named
@RequestScoped
public class ImageLoader implements Serializable {
private static final long serialVersionUID = -1572789608594870285L;
@Inject
FileManager fileManager;
public void paintImage(OutputStream out, Object data) throws IOException {
if (null == data) {
return;
}
File imageResource = fileManager.getFileByPath(data.toString());
paintImageToBrowser(out, imageResource);
}
public void paintAvatarImage(OutputStream out, Object data) throws IOException {
if (null == data) {
return;
}
File imageResource = fileManager.getFileByPath(data.toString());
if (imageResource == null || !imageResource.exists()) {
imageResource = fileManager.getFileByAbsolutePath(data.toString());
}
paintImageToBrowser(out, imageResource);
}
private void paintImageToBrowser(OutputStream out, File imageResource) throws IOException {
if (imageResource != null && imageResource.exists()) {
byte[] toWrite = new byte[Constants.DEFAULT_BUFFER_SIZE];
FileInputStream in = new FileInputStream(imageResource);
try {
while (in.read(toWrite) != -1) {
out.write(toWrite);
}
} finally {
in.close();
}
} else {
String suffix = excludeFilePrefix(imageResource.getPath());
paintImage(out, fileManager.transformPath(Constants.DEFAULT_ORIGINAL_PICTURE, suffix));
return;
}
}
private String excludeFilePrefix(String path) {
final int begin = path.lastIndexOf("_");
final int end = path.lastIndexOf(Constants.DOT);
return path.substring(begin, end);
}
}