/*
* Copyright 2012 astamuse company,Ltd.
*
* 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 com.astamuse.asta4d.render;
import org.jsoup.nodes.Element;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.astamuse.asta4d.render.test.TestableRendering;
import com.astamuse.asta4d.util.Asta4DWarningException;
/**
* A TextSetter will empty the target element at first, then add a new text node to the target element
*
* @author e-ryu
*
*/
public class TextSetter implements ElementSetter, TestableRendering {
private final static Logger logger = LoggerFactory.getLogger(TextSetter.class);
private Object originContent;
private String renderText;
/**
* Constructor
*
* @param content
* the content wanted to be rendered
*/
public TextSetter(Object content) {
this.originContent = content;
this.renderText = content2Str(content);
}
private final static String content2Str(Object content) {
if (content == null) {
String msg = "Trying to render a null String";
// we want to get a information of where the null is passed, so we
// create a exception to get the calling stacks
Exception ex = new Asta4DWarningException(msg);
logger.warn(msg, ex);
}
return content == null ? "" : content.toString();
}
@Override
public void set(Element elem) {
elem.empty();
elem.appendText(renderText);
}
@Override
public String toString() {
return renderText;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((originContent == null) ? 0 : originContent.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
TextSetter other = (TextSetter) obj;
if (originContent == null) {
if (other.originContent != null)
return false;
} else if (!originContent.equals(other.originContent))
return false;
return true;
}
@Override
public Object retrieveTestableData() {
return originContent;
}
}