/*
* Copyright 2011 JBoss, a divison Red Hat, Inc
*
* 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.ioc.rebind.ioc.codegen.control;
import java.util.LinkedHashMap;
import java.util.Map;
import org.jboss.errai.ioc.rebind.ioc.codegen.AbstractStatement;
import org.jboss.errai.ioc.rebind.ioc.codegen.BlockStatement;
import org.jboss.errai.ioc.rebind.ioc.codegen.Context;
import org.jboss.errai.ioc.rebind.ioc.codegen.Variable;
/**
* @author Christian Sadilek <csadilek@redhat.com>
*/
public class TryBlock extends AbstractStatement {
private BlockStatement block = new BlockStatement();
private Map<Variable, BlockStatement> catchBlocks = new LinkedHashMap<Variable, BlockStatement>();
private BlockStatement finallyBlock = null;
public BlockStatement getBlock() {
return block;
}
public void addCatchBlock(Variable exception) {
catchBlocks.put(exception, new BlockStatement());
}
public BlockStatement getCatchBlock(Variable exceptionVar) {
return catchBlocks.get(exceptionVar);
}
public BlockStatement getFinallyBlock() {
if (finallyBlock == null)
finallyBlock = new BlockStatement();
return finallyBlock;
}
@Override
public String generate(Context context) {
StringBuilder buf = new StringBuilder("try {\n");
buf.append(block.generate(context)).append("\n} ");
if (!catchBlocks.isEmpty()) {
for (Variable exception : catchBlocks.keySet()) {
Context ctx = Context.create(context).addVariable(exception);
buf.append("catch (").append(exception.generate(ctx)).append(") ")
.append("{\n")
.append(catchBlocks.get(exception).generate(ctx))
.append("\n} ");
}
}
else if (finallyBlock == null) {
finallyBlock = new BlockStatement();
}
if (finallyBlock != null) {
Context ctx = Context.create(context);
buf.append(" finally {\n").append(finallyBlock.generate(ctx)).append("\n}\n");
}
return buf.toString();
}
}