/*
* Copyright 2014 Attila Szegedi, Daniel Dekany, Jonathan Revusky
*
* 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 freemarker.core;
import java.io.IOException;
import freemarker.template.TemplateException;
class ListElseContainer extends TemplateElement {
private final IteratorBlock listPart;
private final ElseOfList elsePart;
public ListElseContainer(IteratorBlock listPart, ElseOfList elsePart) {
setRegulatedChildBufferCapacity(2);
addRegulatedChild(listPart);
addRegulatedChild(elsePart);
this.listPart = listPart;
this.elsePart = elsePart;
}
@Override
void accept(Environment env) throws TemplateException, IOException {
if (!listPart.acceptWithResult(env)) {
elsePart.accept(env);
}
}
@Override
boolean isNestedBlockRepeater() {
return false;
}
@Override
protected String dump(boolean canonical) {
if (canonical) {
StringBuilder buf = new StringBuilder();
int ln = getRegulatedChildCount();
for (int i = 0; i < ln; i++) {
TemplateElement element = getRegulatedChild(i);
buf.append(element.dump(canonical));
}
buf.append("</#list>");
return buf.toString();
} else {
return getNodeTypeSymbol();
}
}
@Override
String getNodeTypeSymbol() {
return "#list-#else-container";
}
@Override
int getParameterCount() {
return 0;
}
@Override
Object getParameterValue(int idx) {
throw new IndexOutOfBoundsException();
}
@Override
ParameterRole getParameterRole(int idx) {
throw new IndexOutOfBoundsException();
}
}