com.speedment.common.codegen.internal.java.JavaGenerator Maven / Gradle / Ivy
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/**
*
* Copyright (c) 2006-2019, Speedment, Inc. All Rights Reserved.
*
* 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.speedment.common.codegen.internal.java;
import com.speedment.common.codegen.TransformFactory;
import com.speedment.common.codegen.internal.DefaultDependencyManager;
import com.speedment.common.codegen.internal.DefaultGenerator;
import java.util.Set;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import java.util.stream.Stream;
/**
* A hook to the generator that can be passed to various stages in the pipeline.
* Contains multiple methods for generating model-to-model or model-to-text.
*
* The JavaGenerator comes with all the basic types
* of the java language and the 'java.lang'-package ignored in imports and
* has views of all the basic language concepts preinstalled.
*
* @author Emil Forslund
*/
public class JavaGenerator extends DefaultGenerator {
private final static Pattern[] IGNORED = compileAll(
"^void$",
"^byte$",
"^short$",
"^char$",
"^int$",
"^long$",
"^boolean$",
"^float$",
"^double$",
"^java\\.lang\\.[^\\.]+$"
);
/**
* Instantiates the JavaGenerator.
*/
public JavaGenerator() {
this(new JavaTransformFactory());
}
/**
* Instantiates the JavaGenerator using an array of custom
* {@link TransformFactory}.
*
* Warning! If you use this constructor, no transforms will be installed
* by default!
*
* @param factory the transform factory to use
*/
public JavaGenerator(TransformFactory factory) {
super(new DefaultDependencyManager(IGNORED), factory);
}
private static Pattern[] compileAll(String... regexp) {
final Set patterns = Stream.of(regexp)
.map(Pattern::compile)
.collect(Collectors.toSet());
return patterns.toArray(new Pattern[patterns.size()]);
}
}