/*
* JBoss, Home of Professional Open Source
* Copyright , 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.renderkit.html;
import org.richfaces.cdk.annotations.JsfRenderer;
import org.richfaces.component.AbstractOutputFile;
import org.richfaces.renderkit.RendererBase;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import java.io.*;
import java.net.URL;
@JsfRenderer(family = AbstractOutputFile.COMPONENT_FAMILY, type = OutputFileRenderer.RENDERER_TYPE)
public class OutputFileRenderer extends RendererBase {
// ------------------------------ FIELDS ------------------------------
public static final String RENDERER_TYPE = "org.richfaces.OutputFileRenderer";
// -------------------------- OTHER METHODS --------------------------
@Override
public void doEncodeEnd(ResponseWriter writer, FacesContext context, UIComponent component) throws IOException {
if (!(component instanceof AbstractOutputFile)) {
return;
}
AbstractOutputFile outputFile = (AbstractOutputFile) component;
String contents = null;
Object value = outputFile.getValue();
if (value instanceof File) {
contents = getContents((File) value);
} else if (value instanceof InputStream) {
contents = getContents((InputStream) value);
} else if (value != null) {
String resourcePath = value.toString();
URL resource = context.getExternalContext().getResource(resourcePath);
if (resource == null) {
throw new FileNotFoundException(resourcePath);
}
contents = getContents(resource.openStream());
}
if (contents != null) {
if (outputFile.isEscape()) {
writer.writeText(contents, null);
} else {
writer.write(contents);
}
}
}
private String getContents(File value) throws IOException {
return getContents(new FileInputStream(value));
}
private String getContents(InputStream value) throws IOException {
String line;
StringBuilder builder = new StringBuilder();
boolean firstLine = true;
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(value));
while ((line = reader.readLine()) != null) {
if (firstLine) {
firstLine = false;
} else {
builder.append("\n");
}
builder.append(line);
}
} finally {
value.close();
}
return builder.toString();
}
}