001/*
002 * Copyright (C) 2022 - 2023, the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *    http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package io.github.ascopes.jct.filemanagers.config;
017
018import io.github.ascopes.jct.compilers.JctCompiler;
019import io.github.ascopes.jct.filemanagers.JctFileManager;
020import io.github.ascopes.jct.utils.SpecialLocationUtils;
021import io.github.ascopes.jct.workspaces.impl.WrappingDirectoryImpl;
022import javax.tools.StandardLocation;
023import org.apiguardian.api.API;
024import org.apiguardian.api.API.Status;
025import org.slf4j.Logger;
026import org.slf4j.LoggerFactory;
027
028/**
029 * Configurer for a file manager that applies the running JVM's platform classpath to the file
030 * manager.
031 *
032 * <p>If platform classpath inheritance is disabled in the compiler, then this will not run.
033 *
034 * @author Ashley Scopes
035 * @since 0.0.1 (0.0.1-M7)
036 */
037@API(since = "0.0.1", status = Status.STABLE)
038public final class JctFileManagerJvmPlatformClassPathConfigurer implements
039    JctFileManagerConfigurer {
040
041  private static final Logger LOGGER = LoggerFactory
042      .getLogger(JctFileManagerJvmPlatformClassPathConfigurer.class);
043
044  private final JctCompiler<?, ?> compiler;
045
046  /**
047   * Initialise the configurer with the desired compiler.
048   *
049   * @param compiler the compiler to wrap.
050   */
051  public JctFileManagerJvmPlatformClassPathConfigurer(JctCompiler<?, ?> compiler) {
052    this.compiler = compiler;
053  }
054
055  @Override
056  public JctFileManager configure(JctFileManager fileManager) {
057    LOGGER.debug("Configuring JVM platform class path");
058
059    SpecialLocationUtils
060        .currentPlatformClassPathLocations()
061        .stream()
062        .peek(loc -> LOGGER.trace(
063            "Adding {} to file manager platform classpath (inherited from JVM)", loc
064        ))
065        .map(WrappingDirectoryImpl::new)
066        .forEach(dir -> fileManager.addPath(StandardLocation.PLATFORM_CLASS_PATH, dir));
067
068    return fileManager;
069  }
070
071  @Override
072  public boolean isEnabled() {
073    return compiler.isInheritPlatformClassPath();
074  }
075}