/*
* Copyright 2009-2014 PrimeTek.
*
* Licensed 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.primefaces.component.barcode;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import javax.faces.application.Resource;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.primefaces.context.RequestContext;
import org.primefaces.renderkit.CoreRenderer;
import org.primefaces.util.Constants;
import org.primefaces.util.HTML;
import org.primefaces.util.SharedStringBuilder;
import org.primefaces.util.StringEncrypter;
public class BarcodeRenderer extends CoreRenderer {
private static final String SB_BUILD = BarcodeRenderer.class.getName() + "#build";
@Override
public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
ResponseWriter writer = context.getResponseWriter();
Barcode barcode = (Barcode) component;
String clientId = barcode.getClientId(context);
String styleClass = barcode.getStyleClass();
String src = null;
Object value = barcode.getValue();
String type = barcode.getType();
String handlerType = type.equals("qr") ? "qr" : "barcode";
if(value == null) {
return;
}
try {
Resource resource = context.getApplication().getResourceHandler().createResource("dynamiccontent.properties", "primefaces", "image/png");
String resourcePath = resource.getRequestPath();
StringEncrypter encrypter = RequestContext.getCurrentInstance().getEncrypter();
String rid = encrypter.encrypt((String) barcode.getValue());
StringBuilder builder = SharedStringBuilder.get(context, SB_BUILD);
src = builder.append(resourcePath).append("&").append(Constants.DYNAMIC_CONTENT_PARAM).append("=").append(URLEncoder.encode(rid, "UTF-8"))
.append("&").append(Constants.DYNAMIC_CONTENT_TYPE_PARAM).append("=").append(handlerType)
.append("&gen=").append(type)
.append("&fmt=").append(barcode.getFormat())
.append("&").append(Constants.DYNAMIC_CONTENT_CACHE_PARAM).append("=").append(barcode.isCache())
.append("&ori=").append(barcode.getOrientation())
.toString();
}
catch (UnsupportedEncodingException ex) {
throw new IOException(ex);
}
writer.startElement("img", barcode);
if(shouldWriteId(component)) writer.writeAttribute("id", clientId, "id");
if(styleClass != null) writer.writeAttribute("class", styleClass, "styleClass");
writer.writeAttribute("src", src, null);
renderPassThruAttributes(context, barcode, HTML.IMG_ATTRS);
writer.endElement("img");
}
}