/*******************************************************************************
* Copyright (c) 2009 Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is 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
*
* Contributors:
* Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.cdi.internal.core.impl.definition;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TreeMap;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.internal.core.JavaModelManager;
import org.jboss.tools.cdi.core.CDICoreNature;
import org.jboss.tools.cdi.core.IRootDefinitionContext;
import org.jboss.tools.cdi.core.extension.IDefinitionContextExtension;
import org.jboss.tools.cdi.core.extension.feature.IProcessAnnotatedTypeFeature;
import org.jboss.tools.cdi.internal.core.impl.CDIProject;
import org.jboss.tools.common.model.util.EclipseResourceUtil;
import org.jboss.tools.common.util.UniquePaths;
/**
*
* @author Viacheslav Kabanovich
*
*/
public class DefinitionContext implements IRootDefinitionContext {
protected CDICoreNature project;
protected IJavaProject javaProject;
private Set<String> types = new HashSet<String>();
private Map<IPath, Set<IPath>> childPaths = new HashMap<IPath, Set<IPath>>();
private Map<IPath, Set<String>> resources = new HashMap<IPath, Set<String>>();
private Map<String, TypeDefinition> typeDefinitions = new TreeMap<String, TypeDefinition>();
private Map<String, AnnotationDefinition> annotations = new HashMap<String, AnnotationDefinition>();
private Map<String, AnnotationDefinition> usedAnnotations = new HashMap<String, AnnotationDefinition>();
private Set<String> vetoedTypes = new HashSet<String>();
private Set<String> packages = new HashSet<String>();
private Map<String, PackageDefinition> packageDefinitions = new HashMap<String, PackageDefinition>();
private Map<IPath, BeansXMLDefinition> beanXMLs = new HashMap<IPath, BeansXMLDefinition>();
Set<IDefinitionContextExtension> extensions = new HashSet<IDefinitionContextExtension>();
private Dependencies dependencies = new Dependencies();
private DefinitionContext workingCopy;
private DefinitionContext original;
public DefinitionContext() {}
public void setExtensions(Set<IDefinitionContextExtension> extensions) {
this.extensions.clear();
this.extensions.addAll(extensions);
for (IDefinitionContextExtension e: extensions) e.setRootContext(this);
}
public Set<IDefinitionContextExtension> getExtensions() {
return extensions;
}
public DefinitionContext getCleanCopy() {
return copy(true);
}
private DefinitionContext copy(boolean clean) {
DefinitionContext copy = new DefinitionContext();
copy.project = project;
copy.javaProject = javaProject;
copy.extensions = new HashSet<IDefinitionContextExtension>();
for (IDefinitionContextExtension e: extensions) {
e.newWorkingCopy(clean);
IDefinitionContextExtension ecopy = e.getWorkingCopy();
ecopy.setRootContext(copy);
copy.extensions.add(ecopy);
}
if(!clean) {
synchronized(this) {
copy.types.addAll(types);
for (String qn: typeDefinitions.keySet()) {
TypeDefinition d = typeDefinitions.get(qn);
if(d.exists()) {
copy.typeDefinitions.put(qn, d);
} else {
copy.types.remove(qn);
}
}
for (String qn: annotations.keySet()) {
AnnotationDefinition d = annotations.get(qn);
if(d.exists()) {
copy.annotations.put(qn, d);
}
}
copy.vetoedTypes.addAll(vetoedTypes);
copy.packages.addAll(packages);
for (String qn: packageDefinitions.keySet()) {
PackageDefinition d = packageDefinitions.get(qn);
if(d.exists()) {
copy.packageDefinitions.put(qn, d);
} else {
packages.remove(qn);
}
}
for (IPath p: resources.keySet()) {
Set<String> set = resources.get(p);
if(set != null) {
Set<String> s1 = new HashSet<String>();
s1.addAll(set);
copy.resources.put(p, s1);
}
}
for (IPath p: childPaths.keySet()) {
Set<IPath> set = childPaths.get(p);
if(set != null) {
Set<IPath> s1 = new HashSet<IPath>();
s1.addAll(set);
copy.childPaths.put(p, s1);
}
}
copy.beanXMLs.putAll(beanXMLs);
copy.dependencies = dependencies;
}
}
return copy;
}
public void setProject(CDICoreNature project) {
this.project = project;
javaProject = EclipseResourceUtil.getJavaProject(project.getProject());
}
public CDICoreNature getProject() {
return project;
}
public IJavaProject getJavaProject() {
return javaProject;
}
public synchronized void addType(IPath file, String typeName, AbstractTypeDefinition def) {
addType(file, typeName);
if(def != null) {
if(def instanceof AnnotationDefinition) {
AnnotationDefinition newD = (AnnotationDefinition)def;
AnnotationDefinition oldD = annotations.get(def.getQualifiedName());
annotations.put(def.getQualifiedName(), newD);
if(oldD != null && oldD.getKind() != newD.getKind()) {
annotationKindChanged(typeName);
}
} else {
typeDefinitions.put(def.getQualifiedName(), (TypeDefinition)def);
}
}
}
public void addPackage(IPath file, String packageName, PackageDefinition def) {
if(file != null) {
file = UniquePaths.getInstance().intern(file);
Set<String> ts = resources.get(file);
if(ts == null) {
ts = new HashSet<String>();
resources.put(file, ts);
}
packageName = packageName.intern();
ts.add(packageName);
packages.add(packageName);
addToParents(file);
}
if(def != null) {
synchronized (this) {
packageDefinitions.put(def.getQualifiedName(), def);
}
}
}
public void addBeanXML(IPath path, BeansXMLDefinition def) {
synchronized (this) {
beanXMLs.put(path, def);
}
addToParents(path);
}
public void addType(IPath file, String typeName) {
if(file != null) {
file = UniquePaths.getInstance().intern(file);
Set<String> ts = resources.get(file);
if(ts == null) {
ts = new HashSet<String>();
resources.put(file, ts);
}
typeName = typeName.intern();
ts.add(typeName);
types.add(typeName);
addToParents(file);
}
}
public void addToParents(IPath file) {
if(file == null) return;
if(file.segmentCount() < 2) return;
IPath q = file;
while(q.segmentCount() >= 2) {
q = q.removeLastSegments(1);
Set<IPath> cs = childPaths.get(q);
if(cs == null) {
childPaths.put(UniquePaths.getInstance().intern(q), cs = new HashSet<IPath>());
}
cs.add(file);
}
}
public synchronized void clean() {
childPaths.clear();
resources.clear();
types.clear();
packages.clear();
typeDefinitions.clear();
vetoedTypes.clear();
annotations.clear();
packageDefinitions.clear();
beanXMLs.clear();
clean((IProject)null);
for (IDefinitionContextExtension e: extensions) e.clean();
dependencies.clean();
}
public synchronized void clean(IProject project) {
Iterator<String> it = usedAnnotations.keySet().iterator();
while(it.hasNext()) {
AnnotationDefinition d = usedAnnotations.get(it.next());
IType t = d.getType();
if(t == null || !t.exists()
|| t.getJavaProject().getProject() == project || !t.getJavaProject().exists()) {
it.remove();
}
}
}
public void clean(IPath path) {
Set<String> ts = resources.remove(path);
if(ts != null) for (String t: ts) {
clean(t);
}
synchronized (this) {
beanXMLs.remove(path);
}
Set<IPath> cs = childPaths.get(path);
if(cs != null) {
IPath[] ps = cs.toArray(new IPath[0]);
for (IPath p: ps) {
clean(p);
}
} else {
removeFromParents(path);
}
for (IDefinitionContextExtension e: extensions) e.clean(path);
dependencies.clean(path);
}
public synchronized void clean(String typeName) {
types.remove(typeName);
typeDefinitions.remove(typeName);
vetoedTypes.remove(typeName);
annotations.remove(typeName);
packages.remove(typeName);
packageDefinitions.remove(typeName);
for (IDefinitionContextExtension e: extensions) e.clean(typeName);
}
void removeFromParents(IPath file) {
if(file == null) return;
IPath q = file;
while(q.segmentCount() >= 2) {
q = q.removeLastSegments(1);
Set<IPath> cs = childPaths.get(q);
if(cs != null) {
cs.remove(file);
if(cs.isEmpty()) {
childPaths.remove(q);
}
}
}
}
private Set<String> underConstruction = new HashSet<String>();
public int getAnnotationKind(IType annotationType) {
if(annotationType == null) return -1;
if(!annotationType.exists()) return -1;
AnnotationDefinition d = getAnnotation(annotationType);
if(d != null) {
return d.getKind();
}
String name = annotationType.getFullyQualifiedName();
//? use cache for basic?
if(types.contains(name)) {
return AnnotationDefinition.NON_RELEVANT;
}
if(AnnotationHelper.SCOPE_ANNOTATION_TYPES.contains(name)) {
createAnnotation(annotationType, name);
return AnnotationDefinition.SCOPE;
}
if(AnnotationHelper.STEREOTYPE_ANNOTATION_TYPES.contains(name)) {
createAnnotation(annotationType, name);
return AnnotationDefinition.STEREOTYPE;
}
if(AnnotationHelper.QUALIFIER_ANNOTATION_TYPES.contains(name)) {
createAnnotation(annotationType, name);
return AnnotationDefinition.QUALIFIER;
}
if(AnnotationHelper.BASIC_ANNOTATION_TYPES.contains(name)) {
return AnnotationDefinition.BASIC;
}
if(AnnotationHelper.CDI_ANNOTATION_TYPES.contains(name)) {
return AnnotationDefinition.CDI;
}
if(underConstruction.contains(name)) {
return AnnotationDefinition.BASIC;
}
return createAnnotation(annotationType, name);
}
private int createAnnotation(IType annotationType, String name) {
underConstruction.add(name);
AnnotationDefinition d = new AnnotationDefinition();
d.setType(annotationType, this, 0);
int kind = d.getKind();
if(kind <= AnnotationDefinition.CDI) {
// d = null; //We need it to compare kind if extensions change it.
}
addType(annotationType.getPath(), name, d);
underConstruction.remove(name);
return kind;
}
public void newWorkingCopy(boolean forFullBuild) {
if(original != null || workingCopy != null) return;
workingCopy = copy(forFullBuild);
workingCopy.original = this;
}
public DefinitionContext getWorkingCopy() {
if(original != null) {
return this;
}
if(workingCopy != null) {
return workingCopy;
}
workingCopy = copy(false);
workingCopy.original = this;
return workingCopy;
}
public void applyIncrementalWorkingCopy() {
if(original != null) {
original.applyIncrementalWorkingCopy();
return;
}
if(workingCopy == null) {
return;
}
incremental = true;
try {
applyWorkingCopy();
} finally {
incremental = false;
}
}
private boolean incremental = false;
public void applyWorkingCopy() {
if(original != null) {
original.applyWorkingCopy();
return;
}
if(workingCopy == null) {
return;
}
JavaModelManager manager = JavaModelManager.getJavaModelManager();
try {
manager.cacheZipFiles(this);
applyWorkingCopyImpl();
} finally {
manager.flushZipFiles(this);
}
}
private void applyWorkingCopyImpl() {
Set<TypeDefinition> newTypeDefinitions = new HashSet<TypeDefinition>();
for (String typeName: workingCopy.typeDefinitions.keySet()) {
TypeDefinition nd = workingCopy.typeDefinitions.get(typeName);
TypeDefinition od = typeDefinitions.get(typeName);
if(od != nd) {
newTypeDefinitions.add(nd);
}
}
types = workingCopy.types;
resources = workingCopy.resources;
childPaths = workingCopy.childPaths;
typeDefinitions = workingCopy.typeDefinitions;
vetoedTypes = workingCopy.vetoedTypes;
annotations = workingCopy.annotations;
packages = workingCopy.packages;
packageDefinitions = workingCopy.packageDefinitions;
beanXMLs = workingCopy.beanXMLs;
Set<IProcessAnnotatedTypeFeature> fs = project.getExtensionManager().getProcessAnnotatedTypeFeatures();
if(fs != null && !fs.isEmpty()) {
for (TypeDefinition nd: newTypeDefinitions) {
for (IProcessAnnotatedTypeFeature f: fs) {
f.processAnnotatedType(nd, workingCopy);
}
}
}
for (IDefinitionContextExtension e: extensions) {
e.applyWorkingCopy();
}
//extensions may add to dependencies while they change
dependencies = workingCopy.dependencies;
if(incremental && project.getDelegate() instanceof CDIProject) {
((CDIProject)project.getDelegate()).updateIncremental(true);
} else {
project.getDelegate().update(true);
}
workingCopy = null;
if(!project.getProject().isAccessible()) {
clean();
}
}
public void dropWorkingCopy() {
if(original != null) {
original.dropWorkingCopy();
} else {
workingCopy = null;
}
}
public AnnotationDefinition getAnnotation(IType type) {
return getAnnotation(type.getFullyQualifiedName());
}
/**
* Looks up for annotation definition loaded by this project or by projects used by it.
*/
public AnnotationDefinition getAnnotation(String fullyQualifiedName) {
//1. Look in annotations loaded by this project
AnnotationDefinition result = annotations.get(fullyQualifiedName);
//2. Validate result.
if(result != null && (!result.getType().exists())) {
synchronized (this) {
annotations.remove(fullyQualifiedName);
}
result = null;
}
if(result == null || usedAnnotations.containsKey(fullyQualifiedName)
|| (result.getType().getJavaProject() != null && result.getType().getJavaProject().getProject() != project.getProject())
) {
//3. Look in annotations loaded by used projects
Set<CDICoreNature> ns2 = project.getCDIProjects(true);
for (CDICoreNature n: toListOrderedByDependencies(ns2)) {
DefinitionContext d = n.getDefinitions();
AnnotationDefinition r = d.annotations.get(fullyQualifiedName);
if(r != null) {
result = r;
//4. Store result for the case if used project is cleaned.
synchronized (this) {
usedAnnotations.put(fullyQualifiedName, result);
}
break;
}
}
}
if(result == null && usedAnnotations.containsKey(fullyQualifiedName)) {
//4. Finally, try in annotations obtained earlier from used projects - they may be cleaned now.
// The result may be out-of-date until used project is rebuilt.
result = usedAnnotations.get(fullyQualifiedName);
if(!result.getType().exists()) {
synchronized (this) {
usedAnnotations.remove(fullyQualifiedName);
}
result = null;
}
}
return result;
}
/**
* Returns both annotations loaded by this project, and stored annotations
* loaded by used projects. This method can be only used in combination with
* getting up-to-date annotations from used projects. Stored annotations
* can only be used if used project is cleaned.
*
* @return
*/
public synchronized List<AnnotationDefinition> getAllAnnotations() {
List<AnnotationDefinition> result = new ArrayList<AnnotationDefinition>();
//1. Add annotations loaded by this project.
result.addAll(annotations.values());
//2. Add stored annotations loaded by used projects. They may be out-of-date.
result.addAll(usedAnnotations.values());
return result;
}
public List<AnnotationDefinition> getAllAnnotationsWithDependencies() {
Set<CDICoreNature> ps = project.getCDIProjects(true);
if(ps.isEmpty() || ps.contains(project)) {
return getAllAnnotations();
}
List<AnnotationDefinition> result = new ArrayList<AnnotationDefinition>();
Set<IType> types = new HashSet<IType>();
for (CDICoreNature p: toListOrderedByDependencies(ps)) {
List<AnnotationDefinition> ds2 = p.getDefinitions().getAllAnnotations();
for (AnnotationDefinition d: ds2) {
IType t = d.getType();
if(t != null && !types.contains(t)) {
types.add(t);
result.add(d);
}
}
}
List<AnnotationDefinition> ds = getAllAnnotations();
for (AnnotationDefinition d: ds) {
IType t = d.getType();
if(t != null && !types.contains(t)) {
types.add(t);
result.add(d);
}
}
return result;
}
public List<TypeDefinition> getTypeDefinitions() {
List<TypeDefinition> result = new ArrayList<TypeDefinition>();
synchronized (this) {
result.addAll(typeDefinitions.values());
}
for (IDefinitionContextExtension e: extensions) {
List<TypeDefinition> ds = e.getTypeDefinitions();
if(ds != null && !ds.isEmpty()) result.addAll(ds);
}
return result;
}
public Set<BeansXMLDefinition> getBeansXMLDefinitions() {
Set<BeansXMLDefinition> result = new HashSet<BeansXMLDefinition>();
synchronized (this) {
result.addAll(beanXMLs.values());
}
return result;
}
public PackageDefinition getPackageDefinition(String packageName) {
return packageDefinitions.get(packageName);
}
public TypeDefinition getTypeDefinition(String fullyQualifiedName) {
return typeDefinitions.get(fullyQualifiedName);
}
private void annotationKindChanged(String typeName) {
List<TypeDefinition> ds = getTypeDefinitions();
for (TypeDefinition d: ds) {
d.annotationKindChanged(typeName, this);
}
}
public void veto(IType type) {
TypeDefinition d = typeDefinitions.get(type.getFullyQualifiedName());
if(d != null) {
d.veto();
} else {
vetoedTypes.add(type.getFullyQualifiedName());
}
}
public void unveto(IType type) {
TypeDefinition d = typeDefinitions.get(type.getFullyQualifiedName());
if(d != null) {
d.unveto();
} else {
vetoedTypes.remove(type.getFullyQualifiedName());
}
}
public Set<String> getVetoedTypes() {
return vetoedTypes;
}
/**
* Returns true only if type was requested by this project to be vetoed, but its definition belongs to
* another project, where it ma bey not vetoed.
* @param type
* @return
*/
public boolean isVetoedTypeFromUsedProject(IType type) {
TypeDefinition d = typeDefinitions.get(type.getFullyQualifiedName());
return d == null && vetoedTypes.contains(type.getFullyQualifiedName());
}
public void addDependency(IPath source, IPath target) {
dependencies.addDependency(source, target);
}
public Dependencies getDependencies() {
return dependencies;
}
public Dependencies getAllDependencies() {
Set<CDICoreNature> ns = project.getCDIProjects(true);
if(!ns.isEmpty()) {
Dependencies d = new Dependencies();
dependencies.copyTo(d);
for (CDICoreNature n: ns) {
n.getDefinitions().getDependencies().copyTo(d);
}
return d;
}
return dependencies;
}
/**
* Returns list with projects ordered by dependencies.
* First go projects that do not depend on others,
* then projects that depend only on these projects,
* and so on until the entire set is exhausted.
* In the case of circular dependencies, the order is not determined,
* the method will return some order that ignores (randomly chosen)
* wrong dependencies.
*
* @param set
* @return
*/
public static List<CDICoreNature> toListOrderedByDependencies(Set<CDICoreNature> set) {
List<CDICoreNature> result = new ArrayList<CDICoreNature>();
if(set.size() < 2) {
result.addAll(set);
return result;
}
Map<CDICoreNature, Integer> map = new HashMap<CDICoreNature, Integer>();
LinkedList<CDICoreNature> leaves = new LinkedList<CDICoreNature>();
for (CDICoreNature n: set) {
int k = n.countDirectDependencies(set);
if(k == 0) {
leaves.addLast(n);
} else {
map.put(n, k);
}
}
while(!map.isEmpty() || !leaves.isEmpty()) {
while(!leaves.isEmpty()) {
CDICoreNature n = leaves.removeFirst();
result.add(n);
synchronized(n) {
for (CDICoreNature c: n.getDependentProjects()) {
Integer i = map.get(c);
if(i != null) {
if(i > 1) {
map.put(c, i - 1);
} else {
map.remove(c);
leaves.addLast(c);
}
}
}
}
}
if(!map.isEmpty()) {
//This code will only work when dependencies contain loops.
//The order is not very important because user has to fix dependencies anyway.
//But let us try and find some nice order without wasting much time.
int m = map.size() + 1;
CDICoreNature n = null;
for (Map.Entry<CDICoreNature,Integer> e: map.entrySet()) {
if(e.getValue() < m) {
m = e.getValue();
n = e.getKey();
}
}
if(n == null) {
n = map.keySet().iterator().next();
}
map.remove(n);
leaves.addLast(n);
}
}
return result;
}
}