ExceptionVisitor.java

/*
 * Copyright (C) 2012 Facebook, 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 com.facebook.swift.generator.visitors;

import com.facebook.swift.generator.SwiftGeneratorConfig;

import com.facebook.swift.generator.SwiftDocumentContext;
import com.facebook.swift.generator.template.StructContext;
import com.facebook.swift.generator.util.TemplateLoader;
import com.facebook.swift.parser.model.ThriftException;
import com.facebook.swift.parser.model.ThriftField;
import com.facebook.swift.parser.visitor.Visitable;

import java.io.File;
import java.io.IOException;

public class ExceptionVisitor extends AbstractTemplateVisitor
{
    public ExceptionVisitor(final TemplateLoader templateLoader,
                            final SwiftDocumentContext context,
                            final SwiftGeneratorConfig config,
                            final File outputFolder)
    {
        super(templateLoader, context, config, outputFolder);
    }

    @Override
    public boolean accept(final Visitable visitable)
    {
        return visitable.getClass() == ThriftException.class;
    }

    @Override
    public void visit(final Visitable visitable) throws IOException
    {
        final ThriftException exception = ThriftException.class.cast(visitable);
        final StructContext exceptionContext = contextGenerator.structFromThrift(exception);

        for (final ThriftField field : exception.getFields()) {
            exceptionContext.addField(contextGenerator.fieldFromThrift(field));
        }

        render(exceptionContext, "exception");
    }
}