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BytecodeTranspilation.java
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BytecodeTranspilation.java
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/*
* The MIT License (MIT)
*
* Copyright (c) 2016-2023 Objectionary.com
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package org.eolang.jeo.representation;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Collection;
import java.util.Objects;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.eolang.jeo.improvement.XmirFootprint;
/**
* Transpilation of the bytecode to the EO.
*
* @since 0.1.0
* @todo #58:30min Duplicate between BytecodeTranspilation and Optimization.
* Both classes do the same thing, but in different ways. We need to
* refactor them to use the same approach. When it's done, remove this
* puzzle. Classes:
* - {@link org.eolang.jeo.representation.BytecodeTranspilation}
* - {@link org.eolang.jeo.Optimization}
*/
public class BytecodeTranspilation {
/**
* Project compiled classes.
*/
private final Path classes;
/**
* Project default target directory.
*/
private final Path target;
/**
* Constructor.
* @param classes Project compiled classes.
* @param target Project default target directory.
*/
public BytecodeTranspilation(
final Path classes,
final Path target
) {
this.classes = classes;
this.target = target;
}
/**
* Transpile all bytecode files.
* @throws IOException If some I/O problem arises.
*/
public void transpile() throws IOException {
new XmirFootprint(this.target).apply(
this.bytecode()
.stream()
.map(BytecodeRepresentation::new)
.collect(Collectors.toList())
);
}
/**
* Find all bytecode files.
* @return Collection of bytecode files
* @throws java.io.IOException If some I/O problem arises
*/
private Collection<Path> bytecode() throws IOException {
if (Objects.isNull(this.classes)) {
throw new IllegalStateException(
"The classes directory is not set, jeo-maven-plugin does not know where to look for classes."
);
}
if (!Files.exists(this.classes)) {
throw new IllegalStateException(
String.format(
"The classes directory '%s' does not exist, jeo-maven-plugin does not know where to look for classes.",
this.classes
)
);
}
try (Stream<Path> walk = Files.walk(this.classes)) {
return walk.filter(path -> path.toString().endsWith(".class"))
.collect(Collectors.toList());
}
}
}