com.sun.faces.application.ConverterPropertyEditorBase Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of javax.faces Show documentation
Show all versions of javax.faces Show documentation
This is the master POM file for Oracle's Implementation of the JSF 2.2 Specification.
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.faces.application;
import java.beans.PropertyEditorSupport;
/**
* Abstract base for a {@link java.beans.PropertyEditor} that delegates to a
* faces Converter that was registered by-type in a faces-config descriptor.
* Concrete implementations (such as generated by {@link
* ConverterPropertyEditorFactory}) will override {@link #getTargetClass}. (This
* is based on the original ConverterPropertyEditor code).
*/
public abstract class ConverterPropertyEditorBase
extends PropertyEditorSupport {
/**
* Return the target class of the objects that are being edited. This is used
* as a key to find the appropriate {@link javax.faces.convert.Converter} from
* the Faces application.
*
* @return the target class.
*/
protected abstract Class getTargetClass();
/**
* Convert the textValue
to an object of type {@link
* #getTargetClass} by delegating to a converter in the faces Application.
*/
@Override
public void setAsText(String textValue) throws IllegalArgumentException {
try {
Object appAssociate = getPropertyEditorHelper();
// Get targetClass for the current ClassLoader
Class targetClass = Thread.currentThread()
.getContextClassLoader()
.loadClass(getTargetClass().getName());
Object value = appAssociate.getClass()
.getMethod("convertToObject", Class.class, String.class)
.invoke(
appAssociate, targetClass, textValue);
if (value != null) {
setValue(value);
}
} catch (RuntimeException e) {
throw e;
} catch (Exception e) {
throw new IllegalStateException(
"Unexpected Error attempting to use this ConverterPropertyEditor. You're deployment environment may not support"
+ "ConverterPropertyEditors. Try restarting your server or disabling "
+ "com.sun.faces.registerConverterPropertyEditors", e);
}
}
private Object getPropertyEditorHelper() throws Exception {
// Load the current
Class facesContextClass =
Thread.currentThread().getContextClassLoader().loadClass(
"com.sun.faces.application.ApplicationAssociate");
// get the current context version of this class in case
Object appAssociate =
facesContextClass.getMethod("getCurrentInstance").invoke(null);
if (appAssociate == null) {
throw new IllegalStateException(
"Unable to find Deployed JSF Application. You're deployment environment may not support"
+ "ConverterPropertyEditors. Try restarting your server or turn off "
+ "com.sun.faces.registerConverterPropertyEditors");
}
Object propertyEditorHelper = appAssociate.getClass()
.getMethod("getPropertyEditorHelper").invoke(appAssociate);
return propertyEditorHelper;
}
/**
* Convert an object of type {@link #getTargetClass} to text by delegating to a
* converter obtained from the Faces Application.
*/
@Override
public String getAsText() {
try {
Object application = getPropertyEditorHelper();
Class targetClass = Thread.currentThread()
.getContextClassLoader()
.loadClass(getTargetClass().getName());
String text = (String) application.getClass()
.getMethod("convertToString", Class.class, Object.class)
.invoke(application, targetClass, getValue());
if (text != null) {
return text;
} else {
return super.getAsText();
}
} catch (Exception e) {
return super.getAsText();
}
}
}