/**
* License Agreement.
*
* Rich Faces - Natural Ajax for Java Server Faces (JSF)
*
* Copyright (C) 2007 Exadel, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation.
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.richfaces.component;
import java.io.InputStream;
import java.util.Locale;
import java.util.Map;
import javax.el.ELContext;
import javax.el.ExpressionFactory;
import javax.el.ValueExpression;
import javax.faces.FacesException;
import javax.faces.application.Application;
import javax.faces.component.UIComponent;
import javax.faces.component.UIInput;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.el.MethodBinding;
import javax.faces.event.FacesEvent;
import org.ajax4jsf.context.AjaxContext;
import org.ajax4jsf.context.AjaxContextImpl;
import org.ajax4jsf.request.MultipartRequest;
import org.richfaces.event.FileUploadListener;
import org.richfaces.event.UploadEvent;
import org.richfaces.renderkit.FileUploadRendererBase;
/**
* JSF component class
*
*/
public abstract class UIFileUpload extends UIInput {
/**
* <p>
* The standard component type for this component.
* </p>
*/
public static final String COMPONENT_TYPE = "org.richfaces.component.FileUpload";
/**
* <p>
* The standard component family for this component.
* </p>
*/
public static final String COMPONENT_FAMILY = "org.richfaces.component.FileUpload";
private String localContentType;
private String localFileName;
private Integer localFileSize;
private InputStream localInputStream;
private void setupProgressBarValueExpression(FacesContext context, String uid) {
FileUploadRendererBase renderer = (FileUploadRendererBase)this.getRenderer(context);
UIComponent progressBar = renderer.getProgressBar(context, this);
String percentExpression = FileUploadConstants.PERCENT_BEAN_NAME + "['"+uid+"']";
ExpressionFactory expressionFactory = context.getApplication().getExpressionFactory();
ELContext elContext = context.getELContext();
ValueExpression value = expressionFactory
.createValueExpression(elContext, "#{" + percentExpression + "}",
Integer.class);
progressBar.setValueExpression("value", value);
ValueExpression enabled = expressionFactory
.createValueExpression(elContext,
"#{" + percentExpression + " < 100}", //100 - disable progress when upload reaches 100%
Boolean.class);
progressBar.setValueExpression("enabled", enabled);
}
public String getLocalContentType() {
return localContentType;
}
public void setLocalContentType(String localContentType) {
this.localContentType = localContentType;
}
public String getLocalFileName() {
return localFileName;
}
public void setLocalFileName(String localFileName) {
this.localFileName = localFileName;
}
public Integer getLocalFileSize() {
return localFileSize;
}
public void setLocalFileSize(Integer localFileSize) {
this.localFileSize = localFileSize;
}
public InputStream getLocalInputStream() {
return localInputStream;
}
public void setLocalInputStream(InputStream localInputStream) {
this.localInputStream = localInputStream;
}
public abstract void setAcceptedTypes(String acceptedTypes);
public abstract String getAcceptedTypes();
public abstract Integer getMaxFilesQuantity();
public abstract void setMaxFilesQuantity(Integer maxFilesQuantity);
public abstract String getListHeight();
public abstract void setListHeight(String listHeight);
public abstract String getListWidth();
public abstract void setListWidth(String listWidth);
public abstract String getStyleClass();
public abstract String getStyle();
public abstract void setStyleClass(String styleClass);
public abstract void setStyle(String style);
public abstract Object getLocale();
public abstract void setLocale(Object locale);
public abstract MethodBinding getFileUploadListener();
public abstract void setFileUploadListener(MethodBinding scrollerListener);
public void addFileUploadListener(FileUploadListener listener) {
addFacesListener(listener);
}
public FileUploadListener[] getFileUploadListeners() {
return (FileUploadListener[]) getFacesListeners(FileUploadListener.class);
}
public void removeFileUploadListener(FileUploadListener listener) {
removeFacesListener(listener);
}
public void reset () {
this.localContentType = null;
this.localContentType = null;
this.localFileName = null;
this.localFileSize = null;
this.localInputStream = null;
}
public void broadcast(FacesEvent e) {
if (e instanceof UploadEvent) {
FacesContext facesContext = FacesContext.getCurrentInstance();
MethodBinding binding = getFileUploadListener();
if (binding != null) {
binding.invoke(facesContext, new Object[] { e });
}
} else {
FacesContext facesContext = FacesContext.getCurrentInstance();
ExternalContext externalContext = facesContext.getExternalContext();
Map<String, String> requestParameterMap = externalContext.getRequestParameterMap();
String actionString = requestParameterMap.get("action");
if (actionString != null && requestParameterMap.containsKey(this.getClientId(facesContext))) {
AjaxContext ajaxContext = AjaxContextImpl.getCurrentInstance(facesContext);
String uid = requestParameterMap.get(FileUploadConstants.UPLOAD_FILES_ID);
Map<String, Object> sessionMap = externalContext.getSessionMap();
Map<String, MultipartRequest> sessions = (Map<String, MultipartRequest>) sessionMap
.get(FileUploadConstants.REQUESTS_SESSIONS_BEAN_NAME);
if (sessions != null) {
MultipartRequest multipartRequest = sessions.get(uid);
if (multipartRequest != null) {
if ("progress".equals(actionString)) {
setupProgressBarValueExpression(facesContext, uid);
ajaxContext.setResponseData(multipartRequest.getSize());
} else if ("richfaces_file_upload_action_stop".equals(actionString)) {
multipartRequest.stop();
}
}
}
}
}
}
/**
*Parse Locale from String.
*String must be represented as Locale.toString(); xx_XX_XXXX
*/
public Locale parseLocale(String localeStr){
int length = localeStr.length();
if(null==localeStr||length<2){
return Locale.getDefault();
}
//Lookup index of first '_' in string locale representation.
int index1 = localeStr.indexOf("_");
//Get first charters (if exist) from string
String language = null;
if(index1!=-1){
language = localeStr.substring(0, index1);
}else{
return new Locale(localeStr);
}
//Lookup index of second '_' in string locale representation.
int index2 = localeStr.indexOf("_", index1+1);
String country = null;
if(index2!=-1){
country = localeStr.substring(index1+1, index2);
String variant = localeStr.substring(index2+1);
return new Locale(language, country, variant);
}else{
country = localeStr.substring(index1+1);
return new Locale(language, country);
}
}
public Locale getAsLocale(Object locale) {
if (locale instanceof Locale) {
return (Locale) locale;
} else if (locale instanceof String) {
return parseLocale((String) locale);
} else {
FacesContext context = FacesContext.getCurrentInstance();
Application application = context.getApplication();
Converter converter = application
.createConverter(locale.getClass());
if (null != converter) {
return parseLocale(converter.getAsString(context, this, locale));
} else {
throw new FacesException(
"Wrong locale attibute type or there is no converter for custom attibute type");
}
}
}
}