org.thymeleaf.processor.element.AbstractElementModelProcessor Maven / Gradle / Ivy
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Modern server-side Java template engine for both web and standalone environments
/*
* =============================================================================
*
* Copyright (c) 2011-2018, The THYMELEAF team (http://www.thymeleaf.org)
*
* 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.thymeleaf.processor.element;
import org.thymeleaf.context.ITemplateContext;
import org.thymeleaf.engine.AttributeNames;
import org.thymeleaf.engine.ElementNames;
import org.thymeleaf.exceptions.TemplateProcessingException;
import org.thymeleaf.model.IModel;
import org.thymeleaf.model.ITemplateEvent;
import org.thymeleaf.processor.AbstractProcessor;
import org.thymeleaf.templatemode.TemplateMode;
/**
*
* Basic abstract implementation of {@link IElementModelProcessor} for processors that match element
* events by their element name (i.e. without looking at any attributes).
*
*
* @author Daniel Fernández
*
* @since 3.0.0
*
*/
public abstract class AbstractElementModelProcessor
extends AbstractProcessor implements IElementModelProcessor {
private final String dialectPrefix;
private final MatchingElementName matchingElementName;
private final MatchingAttributeName matchingAttributeName;
public AbstractElementModelProcessor(
final TemplateMode templateMode, final String dialectPrefix,
final String elementName, final boolean prefixElementName,
final String attributeName, final boolean prefixAttributeName,
final int precedence) {
super(templateMode, precedence);
this.dialectPrefix = dialectPrefix;
this.matchingElementName =
(elementName == null?
null :
MatchingElementName.forElementName(
templateMode, ElementNames.forName(templateMode, (prefixElementName? this.dialectPrefix : null), elementName)));
this.matchingAttributeName =
(attributeName == null?
null :
MatchingAttributeName.forAttributeName(
templateMode, AttributeNames.forName(templateMode, (prefixAttributeName? this.dialectPrefix : null), attributeName)));
}
protected final String getDialectPrefix() {
return this.dialectPrefix;
}
public final MatchingElementName getMatchingElementName() {
return this.matchingElementName;
}
public final MatchingAttributeName getMatchingAttributeName() {
return this.matchingAttributeName;
}
public final void process(
final ITemplateContext context,
final IModel model, final IElementModelStructureHandler structureHandler) {
ITemplateEvent firstEvent = null;
try {
firstEvent = model.get(0);
doProcess(context, model, structureHandler);
} catch (final TemplateProcessingException e) {
// We will try to add all information possible to the exception report (template name, line, col)
if (firstEvent != null) {
String modelTemplateName = firstEvent.getTemplateName();
int modelLine = firstEvent.getLine();
int modelCol = firstEvent.getCol();
if (modelTemplateName != null) {
if (!e.hasTemplateName()) {
e.setTemplateName(modelTemplateName);
}
}
if (modelLine != -1 && modelCol != -1) {
if (!e.hasLineAndCol()) {
e.setLineAndCol(modelLine, modelCol);
}
}
}
throw e;
} catch (final Exception e) {
// We will try to add all information possible to the exception report (template name, line, col)
String modelTemplateName = null;
int modelLine = -1;
int modelCol = -1;
if (firstEvent != null) {
modelTemplateName = firstEvent.getTemplateName();
modelLine = firstEvent.getLine();
modelCol = firstEvent.getCol();
}
throw new TemplateProcessingException(
"Error during execution of processor '" + this.getClass().getName() + "'", modelTemplateName, modelLine, modelCol, e);
}
}
protected abstract void doProcess(
final ITemplateContext context,
final IModel model,
final IElementModelStructureHandler structureHandler);
}
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