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Using clientId and expression String info to generate uniqueId (solve…
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…s issue with ViewScoped bean and AJAX update.) solves #2 and #4.
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Rudy De Busscher committed Jun 27, 2015
1 parent 3bf4900 commit 2f8e495
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Showing 11 changed files with 1,071 additions and 275 deletions.
190 changes: 104 additions & 86 deletions core/src/main/java/be/rubus/web/jsf/primefaces/AdvancedGraphicImageRenderer.java
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@@ -1,23 +1,24 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
* <p/>
* http://www.apache.org/licenses/LICENSE-2.0
* <p/>
* 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 be.rubus.web.jsf.primefaces;

import be.rubus.web.jsf.primefaces.util.StringEncrypter;
import org.primefaces.component.graphicimage.GraphicImage;
import org.primefaces.component.graphicimage.GraphicImageRenderer;
import org.primefaces.model.StreamedContent;
Expand All @@ -29,80 +30,97 @@
import javax.faces.component.UIParameter;
import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.UUID;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
*/
public class AdvancedGraphicImageRenderer extends GraphicImageRenderer {

private boolean determineIfAdvancedRendering(GraphicImage image) {
boolean result = false;

boolean isStreamedContent = image.getValue() instanceof StreamedContent;
Boolean advancedMarker = (Boolean) image.getAttributes().get(AdvancedRendererHandler.ADVANCED_RENDERING);

if (isStreamedContent && advancedMarker == null) {
result = determineSpecificParents(image);
}

if (!result && advancedMarker != null && advancedMarker) {
result = true;
}

return result;
}

private boolean determineSpecificParents(GraphicImage image) {
boolean result = false;
UIComponent current = image;
while (!result && !(current instanceof UIViewRoot)) {
result = current instanceof UIData;
if (!result) {
result = UIComponent.isCompositeComponent(current);
}
current = current.getParent();
}
return result;
}

@Override
protected String getImageSrc(FacesContext context, GraphicImage image) {
if (determineIfAdvancedRendering(image)) {
String src;
Object value = image.getValue();
StreamedContent streamedContent = (StreamedContent) value;


Resource resource = context.getApplication().getResourceHandler()
.createResource("dynamiccontent", "advancedPrimefaces", streamedContent.getContentType());
String resourcePath = resource.getRequestPath();
String rid = createUniqueContentId(context);
StringBuilder builder = new StringBuilder(resourcePath);
GraphicImageManager graphicImageManager = GraphicImageUtil.retrieveManager(context);
graphicImageManager.registerImage(streamedContent, rid);

builder.append("&").append(Constants.DYNAMIC_CONTENT_PARAM).append("=").append(rid);

for (UIComponent kid : image.getChildren()) {
if (kid instanceof UIParameter) {
UIParameter param = (UIParameter) kid;

builder.append("&").append(param.getName()).append("=").append(param.getValue());
}
}

src = builder.toString();

if (!image.isCache()) {
src += src.contains("?") ? "&" : "?";
src += "primefaces_image=" + UUID.randomUUID().toString();
}

src = context.getExternalContext().encodeResourceURL(src);
return src;

} else {
return super.getImageSrc(context, image);
}
}
private static final Logger LOG = Logger.getLogger(AdvancedGraphicImageRenderer.class.getName());
private static final StringEncrypter ENCRYPTER = new StringEncrypter(AdvancedGraphicImageRenderer.class.getName());

private boolean determineIfAdvancedRendering(GraphicImage image) {
boolean result = false;

boolean isStreamedContent = image.getValue() instanceof StreamedContent;
Boolean advancedMarker = (Boolean) image.getAttributes().get(AdvancedRendererHandler.ADVANCED_RENDERING);

if (isStreamedContent && advancedMarker == null) {
result = determineSpecificParents(image);
}

if (!result && advancedMarker != null && advancedMarker) {
result = true;
}

return result;
}

private boolean determineSpecificParents(GraphicImage image) {
boolean result = false;
UIComponent current = image;
while (!result && !(current instanceof UIViewRoot)) {
result = current instanceof UIData;
if (!result) {
result = UIComponent.isCompositeComponent(current);
}
current = current.getParent();
}
return result;
}

@Override
protected String getImageSrc(FacesContext context, GraphicImage image) {
if (determineIfAdvancedRendering(image)) {
String src;
Object value = image.getValue();
StreamedContent streamedContent = (StreamedContent) value;


Resource resource = context.getApplication().getResourceHandler()
.createResource("dynamiccontent", "advancedPrimefaces", streamedContent.getContentType());
String resourcePath = resource.getRequestPath();

String uniqueId = String.format("%1$s_%2$s", image.getClientId(context), image.getValueExpression("value").getExpressionString());
String encrypted = ENCRYPTER.encrypt(uniqueId);
String rid = null;
try {
rid = URLEncoder.encode(encrypted, "UTF-8");
} catch (UnsupportedEncodingException e) {
// Should never happen
LOG.log(Level.SEVERE, e.getMessage());
}

StringBuilder builder = new StringBuilder(resourcePath);
GraphicImageManager graphicImageManager = GraphicImageUtil.retrieveManager(context);
graphicImageManager.registerImage(streamedContent, rid);

builder.append("&").append(Constants.DYNAMIC_CONTENT_PARAM).append("=").append(rid);

for (UIComponent kid : image.getChildren()) {
if (kid instanceof UIParameter) {
UIParameter param = (UIParameter) kid;

builder.append("&").append(param.getName()).append("=").append(param.getValue());
}
}

src = builder.toString();

if (!image.isCache()) {
src += src.contains("?") ? "&" : "?";
src += "primefaces_image=" + UUID.randomUUID().toString();
}

src = context.getExternalContext().encodeResourceURL(src);
return src;

} else {
return super.getImageSrc(context, image);
}
}
}
54 changes: 27 additions & 27 deletions core/src/main/java/be/rubus/web/jsf/primefaces/AdvancedRendererHandler.java
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Original file line number Diff line number Diff line change
@@ -1,20 +1,20 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
* <p/>
* http://www.apache.org/licenses/LICENSE-2.0
* <p/>
* 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 be.rubus.web.jsf.primefaces;

Expand All @@ -29,18 +29,18 @@
*/
public class AdvancedRendererHandler extends TagHandler {

public static final String ADVANCED_RENDERING = "ADVANCED_RENDERING";
public static final String ADVANCED_RENDERING = "ADVANCED_RENDERING";

private Boolean needAdvancedRendering;
private Boolean needAdvancedRendering;

public AdvancedRendererHandler(TagConfig config) {
super(config);
TagAttribute advancedRendering = config.getTag().getAttributes().get("value");
needAdvancedRendering = Boolean.valueOf(advancedRendering.getValue());
}
public AdvancedRendererHandler(TagConfig config) {
super(config);
TagAttribute advancedRendering = config.getTag().getAttributes().get("value");
needAdvancedRendering = Boolean.valueOf(advancedRendering.getValue());
}

@Override
public void apply(FaceletContext ctx, UIComponent parent) throws IOException {
parent.getAttributes().put(ADVANCED_RENDERING, needAdvancedRendering);
}
@Override
public void apply(FaceletContext ctx, UIComponent parent) throws IOException {
parent.getAttributes().put(ADVANCED_RENDERING, needAdvancedRendering);
}
}
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