/*
* Copyright 2012-2017 the original author or authors.
*
* 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.springframework.boot.cli.compiler;
import org.codehaus.groovy.ast.ClassHelper;
import org.codehaus.groovy.ast.ClassNode;
import org.codehaus.groovy.classgen.GeneratorContext;
import org.codehaus.groovy.control.SourceUnit;
import org.codehaus.groovy.control.customizers.ImportCustomizer;
/**
* Smart extension of {@link ImportCustomizer} that will only add a specific import if a
* class with the same name is not already explicitly imported.
*
* @author Dave Syer
* @since 1.1
*/
class SmartImportCustomizer extends ImportCustomizer {
private SourceUnit source;
SmartImportCustomizer(SourceUnit source, GeneratorContext context,
ClassNode classNode) {
this.source = source;
}
@Override
public ImportCustomizer addImport(String alias, String className) {
if (this.source.getAST()
.getImport(ClassHelper.make(className).getNameWithoutPackage()) == null) {
super.addImport(alias, className);
}
return this;
}
@Override
public ImportCustomizer addImports(String... imports) {
for (String alias : imports) {
if (this.source.getAST()
.getImport(ClassHelper.make(alias).getNameWithoutPackage()) == null) {
super.addImports(alias);
}
}
return this;
}
}