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AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based @AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step. This library is a superset of AspectJ weaver and hence also of AspectJ runtime.

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/*******************************************************************************
 * Copyright (c) 2016 IBM Corporation.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.aspectj.org.eclipse.jdt.internal.core;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.aspectj.org.eclipse.jdt.core.IClasspathAttribute;
import org.aspectj.org.eclipse.jdt.core.IClasspathContainer;
import org.aspectj.org.eclipse.jdt.core.IClasspathEntry;
import org.aspectj.org.eclipse.jdt.core.IJavaProject;
import org.aspectj.org.eclipse.jdt.core.JavaCore;
import org.aspectj.org.eclipse.jdt.core.JavaModelException;
import org.aspectj.org.eclipse.jdt.internal.compiler.env.IModulePathEntry;

public class ModulePathContainer implements IClasspathContainer{

	private IJavaProject project;

	public ModulePathContainer(IJavaProject project) {
		this.project = project;
	}
	@Override
	public IClasspathEntry[] getClasspathEntries() {
		//
		List entries = new ArrayList<>();
		ModuleSourcePathManager manager = JavaModelManager.getModulePathManager();
		try {
			AbstractModule module = (AbstractModule) ((JavaProject)this.project).getModuleDescription();
			if (module == null)
				return new IClasspathEntry[0];
			for (org.aspectj.org.eclipse.jdt.internal.compiler.env.IModule.IModuleReference ref : module.getRequiredModules()) {
				IModulePathEntry entry = manager.getModuleRoot(new String(ref.name()));
				JavaProject refRoot = null;
				if (entry instanceof ProjectEntry) {
					refRoot = ((ProjectEntry) entry).project;
				}
				if (refRoot == null)
					continue;
				IPath path = refRoot.getPath();
				IClasspathAttribute moduleAttribute = new ClasspathAttribute(IClasspathAttribute.MODULE, "true"); //$NON-NLS-1$
				entries.add(JavaCore.newProjectEntry(path, ClasspathEntry.NO_ACCESS_RULES,
						false,
						new IClasspathAttribute[] {moduleAttribute}, ref.isTransitive()));
			}
		} catch (JavaModelException e) {
			// ignore
		}
		return entries.toArray(new IClasspathEntry[entries.size()]);
	}

	@Override
	public String getDescription() {
		//
		return "Module path"; //$NON-NLS-1$
	}

	@Override
	public int getKind() {
		//
		return K_APPLICATION;
	}

	@Override
	public IPath getPath() {
		//
		return new Path(JavaCore.MODULE_PATH_CONTAINER_ID);
	}

}