org.primefaces.context.PrimePartialResponseWriter Maven / Gradle / Ivy
/*
* 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.context;
import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.faces.component.NamingContainer;
import javax.faces.context.FacesContext;
import javax.faces.context.PartialResponseWriter;
import javax.faces.event.AbortProcessingException;
import org.primefaces.json.JSONArray;
import org.primefaces.json.JSONException;
import org.primefaces.json.JSONObject;
import org.primefaces.util.ComponentUtils;
public class PrimePartialResponseWriter extends PartialResponseWriter {
private static final Map CALLBACK_EXTENSION_PARAMS = Collections.unmodifiableMap(new HashMap() {{
put("ln", "primefaces");
put("type", "args");
}});
private final PartialResponseWriter wrapped;
public PrimePartialResponseWriter(PartialResponseWriter wrapped) {
super(wrapped);
this.wrapped = wrapped;
}
public void encodeJSONObject(String paramName, JSONObject jsonObject) throws IOException, JSONException {
String json = jsonObject.toString();
json = ComponentUtils.escapeXml(json);
getWrapped().write("\"");
getWrapped().write(paramName);
getWrapped().write("\":");
getWrapped().write(json);
}
public void encodeJSONArray(String paramName, JSONArray jsonArray) throws IOException, JSONException {
String json = jsonArray.toString();
json = ComponentUtils.escapeXml(json);
getWrapped().write("\"");
getWrapped().write(paramName);
getWrapped().write("\":");
getWrapped().write(json);
}
public void encodeJSONValue(String paramName, Object paramValue) throws IOException, JSONException {
String json = new JSONObject().put(paramName, paramValue).toString();
json = ComponentUtils.escapeXml(json);
getWrapped().write(json.substring(1, json.length() - 1));
}
public void encodeCallbackParams(Map params) throws IOException, JSONException {
if (params != null && !params.isEmpty()) {
startExtension(CALLBACK_EXTENSION_PARAMS);
getWrapped().write("{");
for(Iterator it = params.keySet().iterator(); it.hasNext();) {
String paramName = it.next();
Object paramValue = params.get(paramName);
if (paramValue instanceof JSONObject) {
encodeJSONObject(paramName, (JSONObject) paramValue);
}
else if (paramValue instanceof JSONArray) {
encodeJSONArray(paramName, (JSONArray) paramValue);
}
else if (isBean(paramValue)) {
encodeJSONObject(paramName, (JSONObject) paramValue);
}
else {
encodeJSONValue(paramName, paramValue);
}
if (it.hasNext()) {
getWrapped().write(",");
}
}
getWrapped().write("}");
endExtension();
}
}
public void encodeScripts(RequestContext requestContext) throws IOException {
List scripts = requestContext.getScriptsToExecute();
if (!scripts.isEmpty()) {
startEval();
for (int i = 0; i < scripts.size(); i++) {
getWrapped().write(scripts.get(i));
getWrapped().write(';');
}
endEval();
}
}
@Override
public void delete(String targetId) throws IOException {
wrapped.delete(targetId);
}
@Override
public void endError() throws IOException {
wrapped.endError();
}
@Override
public void endEval() throws IOException {
wrapped.endEval();
}
@Override
public void endExtension() throws IOException {
wrapped.endExtension();
}
@Override
public void endInsert() throws IOException {
wrapped.endInsert();
}
@Override
public void endUpdate() throws IOException {
wrapped.endUpdate();
}
@Override
public void redirect(String url) throws IOException {
wrapped.redirect(url);
}
@Override
public void startDocument() throws IOException {
wrapped.startDocument();
RequestContext requestContext = RequestContext.getCurrentInstance();
if (requestContext != null) {
try {
FacesContext context = FacesContext.getCurrentInstance();
if (context.getViewRoot() instanceof NamingContainer) {
Map params = new HashMap();
params.put("parameterNamespace", context.getViewRoot().getContainerClientId(context));
encodeCallbackParams(params);
}
}
catch (Exception e) {
throw new AbortProcessingException(e);
}
}
}
@Override
public void endDocument() throws IOException {
RequestContext requestContext = RequestContext.getCurrentInstance();
if (requestContext != null) {
try {
FacesContext context = FacesContext.getCurrentInstance();
if (context.isValidationFailed()) {
requestContext.addCallbackParam("validationFailed", true);
}
encodeCallbackParams(requestContext.getCallbackParams());
encodeScripts(requestContext);
}
catch (Exception exception) {
throw new AbortProcessingException(exception);
}
}
wrapped.endDocument();
}
@Override
public void startError(String errorName) throws IOException {
wrapped.startError(errorName);
}
@Override
public void startEval() throws IOException {
wrapped.startEval();
}
@Override
public void startExtension(Map attributes) throws IOException {
wrapped.startExtension(attributes);
}
@Override
public void startInsertAfter(String targetId) throws IOException {
wrapped.startInsertAfter(targetId);
}
@Override
public void startInsertBefore(String targetId) throws IOException {
wrapped.startInsertBefore(targetId);
}
@Override
public void startUpdate(String targetId) throws IOException {
wrapped.startUpdate(targetId);
}
@Override
public void updateAttributes(String targetId, Map attributes) throws IOException {
wrapped.updateAttributes(targetId, attributes);
}
private boolean isBean(Object value) {
if (value == null) {
return false;
}
if (value instanceof Boolean || value instanceof String || value instanceof Number) {
return false;
}
return true;
}
}