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/*******************************************************************************
* Copyright (c) 2004 INRIA.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* Contributors:
* Frederic Jouault (INRIA) - initial API and implementation
*******************************************************************************/
package org.eclipse.m2m.atl.engine.vm.nativelib;
import java.util.Collection;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.Set;
import org.eclipse.m2m.atl.engine.vm.StackFrame;
/**
* This class does not compile as of now. Consider it unimplemented.
*
* @author <a href="mailto:frederic.jouault@univ-nantes.fr">Frederic Jouault</a>
*/
public class ASMOrderedSet extends ASMCollection {
public static ASMOclType myType = ASMOclParametrizedType.getASMOclParametrizedType("OrderedSet",
getOclAnyType(), ASMSet.myType);
public ASMOrderedSet() {
super(myType);
s = new LinkedHashSet();
}
public ASMOrderedSet(ASMOrderedSet init) {
super(myType);
s = new LinkedHashSet(init.s);
}
public ASMOrderedSet(Collection init) {
super(myType);
s = new LinkedHashSet(init);
}
public String toString() {
StringBuffer ret = new StringBuffer();
ret.append("OrderedSet {");
for (Iterator i = s.iterator(); i.hasNext();) {
ret.append(i.next());
if (i.hasNext())
ret.append(", ");
}
ret.append("}");
return ret.toString();
}
public void add(ASMOclAny o) {
s.add(o);
}
public void add(Iterator i) {
for (; i.hasNext();) {
add((ASMOclAny)i.next());
}
}
public Iterator iterator() {
return s.iterator();
}
public Collection collection() {
return s;
}
public boolean equals(Object o) {
return (o instanceof ASMOrderedSet) && (((ASMOrderedSet)o).s.equals(s));
}
public int hashCode() {
return s.hashCode();
}
// Native Operations below
public static ASMOrderedSet append(StackFrame frame, ASMOrderedSet self, ASMOclAny o) {
return including(frame, self, o);
}
public static ASMOrderedSet prepend(StackFrame frame, ASMOrderedSet self, ASMOclAny o) {
return insertAt(frame, self, new ASMInteger(1), o);
}
public static ASMOrderedSet insertAt(StackFrame frame, ASMOrderedSet self, ASMInteger index, ASMOclAny o) {
Set ret = new LinkedHashSet();
int k = 0;
int idx = index.getSymbol() - 1;
for (Iterator i = self.s.iterator(); i.hasNext();) {
if (k++ == idx)
ret.add(o);
ret.add(i.next());
}
return new ASMOrderedSet(ret);
}
public static ASMOrderedSet subOrderedSet(StackFrame frame, ASMOrderedSet self, ASMInteger lower,
ASMInteger upper) {
ASMOrderedSet ret = new ASMOrderedSet();
int l = lower.getSymbol();
int u = upper.getSymbol();
int k = 1;
for (Iterator i = self.iterator(); i.hasNext() && (k <= u);) {
ASMOclAny object = (ASMOclAny)i.next();
if (k >= l) {
ret.add(object);
}
k++;
}
return ret;
}
public static ASMOclAny at(StackFrame frame, ASMOrderedSet self, ASMInteger i) {
ASMOclAny ret = null;
int k = 0;
int idx = i.getSymbol() - 1;
for (Iterator j = self.s.iterator(); j.hasNext() && (ret == null);) {
if (k++ == idx)
ret = (ASMOclAny)j.next();
else
j.next();
}
return ret;
}
public static ASMInteger indexOf(StackFrame frame, ASMOrderedSet self, ASMOclAny o) {
int i = -2;
int k = 1;
for (Iterator j = self.s.iterator(); j.hasNext() && (i < 0);) {
ASMOclAny p = (ASMOclAny)j.next();
if (o.equals(p))
i = k;
k++;
}
return new ASMInteger(i);
}
public static ASMOclAny first(StackFrame frame, ASMOrderedSet self) {
return (self.s.size() == 0) ? new ASMOclUndefined() : (ASMOclAny)self.s.iterator().next();
}
public static ASMOclAny last(StackFrame frame, ASMOrderedSet self) {
ASMOclAny ret = null;
if (self.s.size() == 0) {
ret = new ASMOclUndefined();
} else {
for (Iterator j = self.s.iterator(); j.hasNext();) {
ret = (ASMOclAny)j.next();
}
}
return ret;
}
// count already in ASMCollection
// = already in ASMOclAny
public static ASMOrderedSet union(StackFrame frame, ASMOrderedSet self, ASMCollection other) {
ASMOrderedSet ret = new ASMOrderedSet(self);
ret.s.addAll(other.collection());
return ret;
}
public static ASMOrderedSet flatten(StackFrame frame, ASMOrderedSet self) {
Set base = null;
Set ret = new LinkedHashSet(self.collection());
boolean containsCollection;
do {
base = ret;
ret = new LinkedHashSet();
containsCollection = false;
Iterator iterator = base.iterator();
while (iterator.hasNext()) {
ASMOclAny object = (ASMOclAny)iterator.next();
if (object instanceof ASMCollection) {
ASMCollection subCollection = (ASMCollection)object;
ret.addAll(subCollection.collection());
Iterator subIterator = subCollection.iterator();
while (containsCollection == false && subIterator.hasNext()) {
ASMOclAny subCollectionObject = (ASMOclAny)subIterator.next();
if (subCollectionObject instanceof ASMCollection) {
containsCollection = true;
}
}
} else {
ret.add(object);
}
}
} while (containsCollection);
return new ASMOrderedSet(ret);
}
public static ASMOrderedSet including(StackFrame frame, ASMOrderedSet self, ASMOclAny o) {
ASMOrderedSet ret = new ASMOrderedSet(self);
ret.s.add(o);
return ret;
}
public static ASMOrderedSet excluding(StackFrame frame, ASMOrderedSet self, ASMOclAny o) {
ASMOrderedSet ret = new ASMOrderedSet(self);
ret.s.remove(o);
return ret;
}
public static ASMSequence asSequence(StackFrame frame, ASMOrderedSet self) {
return new ASMSequence(self.s);
}
private Set s;
}
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