/*
* Copyright (C) 2011 Red Hat, Inc. and/or its affiliates.
*
* 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.jboss.errai.codegen.control;
import org.jboss.errai.codegen.BlockStatement;
import org.jboss.errai.codegen.BooleanExpression;
import org.jboss.errai.codegen.Context;
import org.jboss.errai.codegen.builder.impl.BooleanExpressionBuilder;
/**
* @author Mike Brock <cbrock@redhat.com>
* @author Christian Sadilek <csadilek@redhat.com>
*/
public class IfBlock extends AbstractConditionalBlock {
private final BlockStatement elseBlock = new BlockStatement();
private IfBlock elseIfBlock;
public IfBlock(BooleanExpression condition) {
super(condition);
}
@Override
public BooleanExpressionBuilder getCondition() {
return (BooleanExpressionBuilder) super.getCondition();
}
public BlockStatement getElseBlock() {
return elseBlock;
}
public IfBlock getElseIfBlock() {
return elseIfBlock;
}
public void setElseIfBlock(IfBlock elseIfBlock) {
this.elseIfBlock = elseIfBlock;
}
String generatedCache;
@Override
public String generate(Context context) {
if (generatedCache != null) return generatedCache;
final StringBuilder builder = new StringBuilder("if ");
builder.append("(").append(getCondition().generate(context)).append(") ");
builder.append("{\n");
if (getBlock() != null) {
builder.append(getBlock().generate(Context.create(context)));
}
builder.append("\n} ");
if (elseIfBlock != null) {
builder.append("else ").append(elseIfBlock.generate(Context.create(context)));
return builder.toString();
}
if (elseBlock != null && !elseBlock.isEmpty()) {
builder.append("else {\n").append(elseBlock.generate(Context.create(context))).append("\n} ");
return builder.toString();
}
return generatedCache = builder.toString();
}
}