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org.primefaces.component.media.MediaRenderer Maven / Gradle / Ivy
/*
* Copyright 2009-2013 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.media;
import java.io.IOException;
import java.net.URLEncoder;
import java.util.Map;
import java.util.UUID;
import javax.faces.application.Resource;
import javax.faces.component.UIComponent;
import javax.faces.component.UIParameter;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.primefaces.component.media.player.MediaPlayer;
import org.primefaces.component.media.player.MediaPlayerFactory;
import org.primefaces.context.RequestContext;
import org.primefaces.model.StreamedContent;
import org.primefaces.renderkit.CoreRenderer;
import org.primefaces.util.AgentUtils;
import org.primefaces.util.Constants;
import org.primefaces.util.HTML;
import org.primefaces.util.StringEncrypter;
public class MediaRenderer extends CoreRenderer {
@Override
public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
Media media = (Media) component;
MediaPlayer player = resolvePlayer(context, media);
ResponseWriter writer = context.getResponseWriter();
String src;
try {
src = getMediaSrc(context, media);
} catch (Exception ex) {
throw new IOException(ex);
}
boolean isIE = AgentUtils.isIE(context);
String sourceParam = player.getSourceParam();
writer.startElement("object", media);
writer.writeAttribute("type", player.getType(), null);
writer.writeAttribute("data", src, null);
if(isIE) {
encodeIEConfig(writer, player);
}
if(media.getStyleClass() != null) {
writer.writeAttribute("class", media.getStyleClass(), null);
}
renderPassThruAttributes(context, media, HTML.MEDIA_ATTRS);
if(sourceParam != null) {
encodeParam(writer, player.getSourceParam(), src, false);
}
for(UIComponent child : media.getChildren()) {
if(child instanceof UIParameter) {
UIParameter param = (UIParameter) child;
encodeParam(writer, param.getName(), param.getValue(), false);
}
}
renderChildren(context, media);
writer.endElement("object");
}
protected void encodeIEConfig(ResponseWriter writer, MediaPlayer player) throws IOException {
writer.writeAttribute("classid", player.getClassId(), null);
if(player.getCodebase() != null) {
writer.writeAttribute("codebase", player.getCodebase(), null);
}
}
protected void encodeParam(ResponseWriter writer, String name, Object value, boolean asAttribute) throws IOException {
if(value == null)
return;
if(asAttribute) {
writer.writeAttribute(name, value, null);
} else {
writer.startElement("param", null);
writer.writeAttribute("name", name, null);
writer.writeAttribute("value", value.toString(), null);
writer.endElement("param");
}
}
protected MediaPlayer resolvePlayer(FacesContext context, Media media) {
if(media.getPlayer() != null) {
return MediaPlayerFactory.getPlayer(media.getPlayer());
}
else if(media.getValue() instanceof String) {
Map players = MediaPlayerFactory.getPlayers();
String[] tokens = ((String) media.getValue()).split("\\.");
String type = tokens[tokens.length-1];
for(MediaPlayer mp : players.values()) {
for(String supportedType : mp.getSupportedTypes()) {
if(supportedType.equalsIgnoreCase(type)) {
return mp;
}
}
}
}
throw new IllegalArgumentException("Cannot resolve mediaplayer for media component '" + media.getClientId(context) + "', cannot play source:" + media.getValue());
}
protected String getMediaSrc(FacesContext context, Media media) throws Exception {
String src;
Object value = media.getValue();
if(value == null) {
src = null;
}
else {
if(value instanceof StreamedContent) {
StreamedContent streamedContent = (StreamedContent) value;
Resource resource = context.getApplication().getResourceHandler().createResource("dynamiccontent.properties", "primefaces", streamedContent.getContentType());
String resourcePath = resource.getRequestPath();
StringEncrypter strEn = RequestContext.getCurrentInstance().getEncrypter();
String rid = strEn.encrypt(media.getValueExpression("value").getExpressionString());
StringBuilder builder = new StringBuilder(resourcePath);
builder.append("&").append(Constants.DYNAMIC_CONTENT_PARAM).append("=").append(URLEncoder.encode(rid,"UTF-8"));
for(UIComponent kid : media.getChildren()) {
if(kid instanceof UIParameter) {
UIParameter param = (UIParameter) kid;
Object paramValue = param.getValue();
builder.append("&").append(param.getName()).append("=");
if(paramValue != null){
builder.append(URLEncoder.encode(param.getValue().toString(), "UTF-8"));
}
}
}
src = context.getExternalContext().encodeResourceURL(builder.toString());
}
else {
src = getResourceURL(context, (String) value);
if(src.startsWith("/")) {
src = context.getExternalContext().encodeResourceURL(src);
}
}
//cache
src += src.contains("?") ? "&" : "?";
src += Constants.DYNAMIC_CONTENT_CACHE_PARAM + "=" + media.isCache();
}
return src;
}
protected String generateKey() {
StringBuilder builder = new StringBuilder();
return builder.append(Constants.DYNAMIC_CONTENT_PARAM).append("_").append(UUID.randomUUID().toString()).toString();
}
@Override
public void encodeChildren(FacesContext context, UIComponent component) throws IOException {
//Do nothing
}
@Override
public boolean getRendersChildren() {
return true;
}
}
