/*******************************************************************************
* Copyright (c) 2000, 2016 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
*******************************************************************************/
package org.eclipse.dltk.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.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.dltk.core.IModelElement;
import org.eclipse.dltk.core.IProjectFragment;
import org.eclipse.dltk.core.IScriptFolder;
import org.eclipse.dltk.core.IScriptProject;
import org.eclipse.dltk.core.ISearchableEnvironment;
import org.eclipse.dltk.core.ISourceModule;
import org.eclipse.dltk.core.IType;
import org.eclipse.dltk.core.ModelException;
import org.eclipse.dltk.internal.core.ModelManager;
import org.eclipse.dltk.internal.core.Openable;
import org.eclipse.dltk.internal.core.ScriptProject;
public class RegionBasedHierarchyBuilder extends HierarchyBuilder {
public RegionBasedHierarchyBuilder(TypeHierarchy hierarchy)
throws ModelException {
super();
setRequestor(hierarchy);
}
@Override
public void build(boolean computeSubtypes) {
ModelManager manager = ModelManager.getModelManager();
try {
// optimize access to zip files while building hierarchy
manager.cacheZipFiles();
if (this.hierarchy.focusType == null || computeSubtypes) {
IProgressMonitor typeInRegionMonitor =
this.hierarchy.progressMonitor == null ?
null :
new SubProgressMonitor(this.hierarchy.progressMonitor, 30);
HashMap allOpenablesInRegion = determineOpenablesInRegion(typeInRegionMonitor);
this.hierarchy.initialize(allOpenablesInRegion.size());
IProgressMonitor buildMonitor =
this.hierarchy.progressMonitor == null ?
null :
new SubProgressMonitor(this.hierarchy.progressMonitor, 70);
createTypeHierarchyBasedOnRegion(allOpenablesInRegion, buildMonitor);
((RegionBasedTypeHierarchy)this.hierarchy).pruneDeadBranches();
} else {
this.hierarchy.initialize(1);
this.buildSupertypes();
}
} finally {
manager.flushZipFiles();
}
}
/**
* Configure this type hierarchy that is based on a region.
*/
private void createTypeHierarchyBasedOnRegion(HashMap allOpenablesInRegion, IProgressMonitor monitor) {
int size = allOpenablesInRegion.size();
if (size == 0) {
if (monitor != null) {
monitor.done();
}
return;
}
this.infoToHandle = new HashMap(size);
Iterator javaProjects = allOpenablesInRegion.entrySet().iterator();
while (javaProjects.hasNext()) {
Map.Entry entry = (Map.Entry) javaProjects.next();
ScriptProject project = (ScriptProject) entry.getKey();
ArrayList allOpenables = (ArrayList) entry.getValue();
Openable[] openables = new Openable[allOpenables.size()];
allOpenables.toArray(openables);
try {
// resolve
if (monitor != null) {
monitor.beginTask("", size * 2/* 1 for build binding, 1 for connect hierarchy*/); //$NON-NLS-1$
}
ISearchableEnvironment searchableEnvironment = project.newSearchableNameEnvironment(this.hierarchy.workingCopies);
this.nameLookup = searchableEnvironment.getNameLookup();
// this.hierarchyResolver.resolve(openables, null, monitor);
} catch (ModelException 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();
IModelElement[] roots =
((RegionBasedTypeHierarchy) this.hierarchy).region.getElements();
int length = roots.length;
if (monitor != null) {
monitor.beginTask("", length); //$NON-NLS-1$
}
for (int i = 0; i <length; i++) {
IModelElement root = roots[i];
IScriptProject javaProject = root.getScriptProject();
ArrayList openables = (ArrayList) allOpenables.get(javaProject);
if (openables == null) {
openables = new ArrayList();
allOpenables.put(javaProject, openables);
}
switch (root.getElementType()) {
case IModelElement.SCRIPT_PROJECT :
injectAllOpenablesForJavaProject((IScriptProject) root, openables);
break;
case IModelElement.PROJECT_FRAGMENT :
injectAllOpenablesForPackageFragmentRoot((IProjectFragment) root, openables);
break;
case IModelElement.SCRIPT_FOLDER :
injectAllOpenablesForPackageFragment((IScriptFolder) root, openables);
break;
case IModelElement.SOURCE_MODULE :
openables.add(root);
break;
case IModelElement.TYPE :
IType type = (IType)root;
openables.add(type.getSourceModule());
break;
default :
break;
}
worked(monitor, 1);
}
return allOpenables;
} finally {
if (monitor != null) {
monitor.done();
}
}
}
/**
* Adds all of the openables defined within this java project to the
* list.
*/
private void injectAllOpenablesForJavaProject(
IScriptProject project,
ArrayList openables) {
try {
IProjectFragment[] devPathRoots =
((ScriptProject) project).getProjectFragments();
if (devPathRoots == null) {
return;
}
for (int i = 0; i < devPathRoots.length; i++) {
IProjectFragment root = devPathRoots[i];
injectAllOpenablesForPackageFragmentRoot(root, openables);
}
} catch (ModelException e) {
// ignore
}
}
/**
* Adds all of the openables defined within this package fragment to the
* list.
*/
private void injectAllOpenablesForPackageFragment(
IScriptFolder packFrag,
ArrayList openables) {
try {
IProjectFragment root = (IProjectFragment) packFrag.getParent();
int kind = root.getKind();
if (kind != 0) {
boolean isSourcePackageFragment = (kind == IProjectFragment.K_SOURCE);
if (isSourcePackageFragment) {
ISourceModule[] cus = packFrag.getSourceModules();
for (int i = 0; i < cus.length; i++) {
openables.add(cus[i]);
}
}
}
} catch (ModelException e) {
// ignore
}
}
/**
* Adds all of the openables defined within this package fragment root to the
* list.
*/
private void injectAllOpenablesForPackageFragmentRoot(
IProjectFragment root,
ArrayList openables) {
try {
IModelElement[] packFrags = root.getChildren();
for (int i = 0; i < packFrags.length; i++) {
IScriptFolder packFrag = (IScriptFolder) packFrags[i];
injectAllOpenablesForPackageFragment(packFrag, openables);
}
} catch (ModelException e) {
return;
}
}
}