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XmirRepresentation.java
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XmirRepresentation.java
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/*
* The MIT License (MIT)
*
* Copyright (c) 2016-2024 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 com.jcabi.xml.XML;
import com.jcabi.xml.XMLDocument;
import java.io.FileNotFoundException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Path;
import org.cactoos.scalar.Sticky;
import org.cactoos.scalar.Synced;
import org.cactoos.scalar.Unchecked;
import org.eolang.jeo.Details;
import org.eolang.jeo.Representation;
import org.eolang.jeo.representation.bytecode.Bytecode;
import org.eolang.jeo.representation.xmir.XmlProgram;
import org.eolang.parser.Schema;
/**
* Intermediate representation of a class files from XMIR.
*
* @since 0.1.0
*/
public final class XmirRepresentation implements Representation {
/**
* XML.
*/
private final Unchecked<XML> xml;
/**
* Source of the XML.
*/
private final String source;
/**
* Constructor.
* @param path Path to XML file.
*/
public XmirRepresentation(final Path path) {
this(XmirRepresentation.fromFile(path), path.toAbsolutePath().toString());
}
/**
* Constructor.
* @param xml XML.
*/
public XmirRepresentation(final XML xml) {
this(xml, "Unknown");
}
/**
* Constructor.
* @param xml XML.
* @param source Source of the XML.
*/
public XmirRepresentation(
final XML xml,
final String source
) {
this(new Unchecked<>(() -> xml), source);
}
/**
* Constructor.
* @param xml XML source.
* @param source Source of the XML.
*/
private XmirRepresentation(
final Unchecked<XML> xml,
final String source
) {
this.xml = xml;
this.source = source;
}
@Override
public Details details() {
return new Details(this.className(), this.source);
}
@Override
public XML toEO() {
return this.xml.value();
}
@Override
public Bytecode toBytecode() {
final XML xmir = this.xml.value();
try {
new Schema(xmir).check();
return new XmlProgram(xmir).bytecode().bytecode();
} catch (final IllegalArgumentException exception) {
throw new IllegalArgumentException(
String.format("Can't transform '%s' to bytecode", xmir),
exception
);
} catch (final IllegalStateException exception) {
throw new IllegalStateException(
String.format("Can't transform XMIR to bytecode from the '%s' source", this.source),
exception
);
}
}
@Override
public long size() {
return this.xml.value().toString().getBytes(StandardCharsets.UTF_8).length;
}
/**
* Retrieves class name from XMIR.
* @return Class name.
*/
private String className() {
return new ClassName(
this.xml.value()
.xpath("/program/metas/meta/tail/text()")
.stream()
.findFirst()
.orElse(""),
this.xml.value().xpath("/program/@name").get(0)
).full();
}
/**
* Prestructor that converts a path to a lazy XML.
* @param path Path to an XML file.
* @return Lazy XML.
*/
private static Unchecked<XML> fromFile(final Path path) {
return new Unchecked<>(new Synced<>(new Sticky<>(() -> XmirRepresentation.open(path))));
}
/**
* Convert path to XML.
* @param path Path to XML file.
* @return XML.
*/
private static XML open(final Path path) {
try {
return new XMLDocument(path.toFile());
} catch (final FileNotFoundException exception) {
throw new IllegalStateException(
String.format("Can't find file '%s'", path),
exception
);
}
}
}