org.aspectj.org.eclipse.jdt.internal.core.hierarchy.RegionBasedHierarchyBuilder Maven / Gradle / Ivy

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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) 2000, 2017 IBM Corporation and others.
 *
 * 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.hierarchy;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import org.eclipse.core.runtime.IProgressMonitor;
import org.aspectj.org.eclipse.jdt.core.ICompilationUnit;
import org.aspectj.org.eclipse.jdt.core.IJavaElement;
import org.aspectj.org.eclipse.jdt.core.IJavaProject;
import org.aspectj.org.eclipse.jdt.core.IOrdinaryClassFile;
import org.aspectj.org.eclipse.jdt.core.IPackageFragment;
import org.aspectj.org.eclipse.jdt.core.IPackageFragmentRoot;
import org.aspectj.org.eclipse.jdt.core.IType;
import org.aspectj.org.eclipse.jdt.core.JavaModelException;
import org.aspectj.org.eclipse.jdt.internal.core.JavaModelManager;
import org.aspectj.org.eclipse.jdt.internal.core.JavaProject;
import org.aspectj.org.eclipse.jdt.internal.core.Openable;
import org.aspectj.org.eclipse.jdt.internal.core.SearchableEnvironment;

@SuppressWarnings({ "rawtypes", "unchecked" })
public class RegionBasedHierarchyBuilder extends HierarchyBuilder {

	public RegionBasedHierarchyBuilder(TypeHierarchy hierarchy)
		throws JavaModelException {

		super(hierarchy);
	}

@Override
public void build(boolean computeSubtypes) {

	JavaModelManager manager = JavaModelManager.getJavaModelManager();
	try {
		// optimize access to zip files while building hierarchy
		manager.cacheZipFiles(this);

		if (this.hierarchy.focusType == null || computeSubtypes) {
			HashMap allOpenablesInRegion = determineOpenablesInRegion(this.hierarchy.progressMonitor.split(30));
			this.hierarchy.initialize(allOpenablesInRegion.size());
			createTypeHierarchyBasedOnRegion(allOpenablesInRegion, this.hierarchy.progressMonitor.split(70));
			((RegionBasedTypeHierarchy)this.hierarchy).pruneDeadBranches();
		} else {
			this.hierarchy.initialize(1);
			buildSupertypes();
		}
	} finally {
		manager.flushZipFiles(this);
	}
}
/**
 * Configure this type hierarchy that is based on a region.
 */
private void createTypeHierarchyBasedOnRegion(HashMap allOpenablesInRegion, IProgressMonitor monitor) {

	try {
		int size = allOpenablesInRegion.size();
		if (monitor != null) monitor.beginTask("", size * 2/* 1 for build binding, 1 for connect hierarchy*/); //$NON-NLS-1$
		this.infoToHandle = new HashMap(size);
		Iterator javaProjects = allOpenablesInRegion.entrySet().iterator();
		while (javaProjects.hasNext()) {
			Map.Entry entry = (Map.Entry) javaProjects.next();
			JavaProject project = (JavaProject) entry.getKey();
			ArrayList allOpenables = (ArrayList) entry.getValue();
			Openable[] openables = new Openable[allOpenables.size()];
			allOpenables.toArray(openables);

			try {
				// resolve
				SearchableEnvironment searchableEnvironment = project.newSearchableNameEnvironment(this.hierarchy.workingCopies);
				this.nameLookup = searchableEnvironment.nameLookup;
				this.hierarchyResolver.resolve(openables, null, monitor);
			} catch (JavaModelException e) {
				// project doesn't exit: ignore
			}
		}
	} finally {
		if (monitor != null) monitor.done();
	}
}

	/**
	 * Returns all of the openables defined in the region of this type hierarchy.
	 * Returns a map from IJavaProject to ArrayList of Openable
	 */
	private HashMap determineOpenablesInRegion(IProgressMonitor monitor) {

		try {
			HashMap allOpenables = new HashMap();
			IJavaElement[] roots =
				((RegionBasedTypeHierarchy) this.hierarchy).region.getElements();
			int length = roots.length;
			if (monitor != null) monitor.beginTask("", length); //$NON-NLS-1$
			for (int i = 0; i