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AttributeMatching.java
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AttributeMatching.java
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import java.io.*;
import java.util.Collections;
import javax.swing.JOptionPane;
import java.util.Vector;
import java.util.List;
/******************************
* Copyright (c) 2003--2024 Kevin Lano
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
* *****************************/
/* package: TransformationSynthesis
*/
public class AttributeMatching
{ Attribute src;
Attribute trg;
String srcname = "";
String trgname = "";
Expression srcvalue = null; // in cases where a value is mapped to the target
Expression trgvalue = null;
EntityMatching dependsOn; // in cases where src : E or Collection(E) and E maps to F
Attribute elementVariable = null; // for expr -> trg
Vector auxVariables = new Vector(); // for expr -> trg
boolean unionSemantics = false; // src' should be added to trg, not assigned
public AttributeMatching(Attribute source, Attribute target)
{ src = source;
trg = target;
srcname = src.getName();
trgname = trg.getName();
}
public AttributeMatching(Expression source, Attribute target)
{ src = new Attribute("" + source, source.getType(),
ModelElement.INTERNAL);
src.setElementType(source.getElementType());
srcvalue = source;
trg = target;
trgvalue = new BasicExpression(target);
srcname = srcvalue + "";
trgname = trg.getName();
}
public AttributeMatching(Expression source, Attribute target, Attribute var,
Vector auxvars)
{ src = new Attribute("" + source, source.getType(), ModelElement.INTERNAL);
src.setType(source.getType());
src.setElementType(source.getElementType());
srcvalue = source;
trg = target;
trgvalue = new BasicExpression(target);
elementVariable = var;
srcname = srcvalue + "";
trgname = trg.getName();
auxVariables = auxvars;
}
public AttributeMatching(Expression source, Expression target)
{ src = new Attribute("" + source, source.getType(),
ModelElement.INTERNAL);
src.setElementType(source.getElementType());
srcvalue = source;
trgvalue = target;
trg = new Attribute("" + target, target.getType(),
ModelElement.INTERNAL);
trg.setElementType(target.getElementType());
srcname = srcvalue + "";
trgname = trg.getName();
}
public AttributeMatching(Expression source, Expression target, Attribute var,
Vector auxvars)
{ src = new Attribute("" + source, source.getType(), ModelElement.INTERNAL);
src.setType(source.getType());
src.setElementType(source.getElementType());
srcvalue = source;
trgvalue = target;
trg = new Attribute("" + target, target.getType(),
ModelElement.INTERNAL);
elementVariable = var;
srcname = srcvalue + "";
trgname = trg.getName();
auxVariables = auxvars;
}
public boolean isVacuous()
{ // Only has _1 |-->_1 or _0 |-->_0
if (srcvalue != null && trgvalue != null &&
srcvalue instanceof BasicExpression &&
trgvalue instanceof BasicExpression)
{ String rulelhs = ((BasicExpression) srcvalue).toCSTL();
BasicExpression rbe = (BasicExpression) trgvalue;
String rulerhs = rbe.toCSTL();
if (rulelhs.trim().equals("_1") &&
rulerhs.trim().equals("_1"))
{ return true; }
}
if (srcname.trim().equals("_1") &&
trgname.trim().equals("_1"))
{ return true; }
if (srcname.trim().equals("_0") &&
trgname.trim().equals("_0"))
{ return true; }
if ((srcvalue + "").equals("_1") &&
(trgvalue + "").equals("_1"))
{ return true; }
if ((srcvalue + "").equals("_0") &&
(trgvalue + "").equals("_0"))
{ return true; }
return false;
}
public boolean isBasic()
{ // Only variable is _1 on rhs; with no `mf
if (trgvalue instanceof BasicExpression)
{ BasicExpression be = (BasicExpression) trgvalue;
Vector vars = trgvalue.metavariables();
Vector mfs = CGRule.metafeatures(be.toLiteralCSTL() + "");
if (vars.size() == 1 && vars.contains("_1") &&
mfs.size() == 0)
{ return true; }
return false;
}
if (trgvalue != null)
{ Vector tvars = CGRule.metavariables(trgvalue + "");
Vector mfs = CGRule.metafeatures(trgvalue + "");
if (tvars.size() == 1 && tvars.contains("_1") &&
mfs.size() == 0)
{ return true; }
}
return false;
}
public boolean isIterative()
{ // LHS has _*
String lhs = srcvalue + "";
if (lhs.indexOf("_*") >= 0)
{ return true; }
return false;
}
public void setElementVariable(Attribute var)
{ elementVariable = var; }
public void addAuxVariable(Attribute var)
{ if (auxVariables.contains(var)) { }
else
{ auxVariables.add(var); }
}
public void setExpressionMatch(Expression source, Attribute target, Attribute var)
{ src = new Attribute("" + source, source.getType(), ModelElement.INTERNAL);
src.setType(source.getType());
src.setElementType(source.getElementType());
srcvalue = source;
trg = target;
trgvalue = new BasicExpression(target);
elementVariable = var;
srcname = srcvalue + "";
trgname = trg.getName();
}
public Attribute getSource()
{ return src; }
public Expression getSourceExpression()
{ if (srcvalue != null)
{ return srcvalue; }
return new BasicExpression(src);
}
public Attribute getTarget()
{ return trg; }
public String toString()
{ return " " + srcname + " |--> " + trgname; }
public Vector usesCSTLfunctions()
{ Vector res = new Vector();
if (trgvalue != null &&
trgvalue instanceof BasicExpression)
{ res =
((BasicExpression) trgvalue).usesCSTLfunctions();
}
return res;
}
public Vector allTagsArities(String category)
{ Vector res = new Vector();
if (srcvalue != null)
{ String rulelhs = "" + srcvalue;
Vector vars = CGRule.metavariables(rulelhs);
if (vars != null)
{ Vector pair = new Vector();
pair.add(category);
pair.add(vars.size());
res.add(pair);
}
if (srcvalue instanceof BasicExpression)
{ BasicExpression be = (BasicExpression) srcvalue;
Vector pars = be.getParameters();
if (pars != null)
{ Vector pair = new Vector();
pair.add(category);
pair.add(pars.size());
res.add(pair);
}
}
}
return res;
}
public String toCSTL(String category, Expression cond,
CGSpec cg, Vector typematches)
{ if (srcvalue != null && trgvalue != null &&
srcvalue instanceof BasicExpression &&
trgvalue instanceof BasicExpression)
{ String rulelhs = ((BasicExpression) srcvalue).toCSTL();
BasicExpression rbe = (BasicExpression) trgvalue;
// System.out.println(">>> Mapping: " + this + " " + rbe.isFunctionApplication());
if (rbe.isFunctionApplication() &&
"_1".equals(rulelhs))
{ String func = rbe.getAppliedFunction();
TypeMatching tm =
TypeMatching.lookupByName(func,typematches);
if (tm != null)
{ String res = tm.toCSTL(category,cg);
System.out.println(">>> Mapping: " + this + " is " + res);
return res;
}
} // It is simply _1 |-->_1`func
String rulerhs =
((BasicExpression) trgvalue).toLiteralCSTL();
CGRule rle = new CGRule(rulelhs, rulerhs);
Vector vars = rle.getVariables();
if (cond != null && vars.size() > 0)
{ // CGCondition cc =
// CGCondition.newCGCondition(category,cond,vars);
// if (cc != null)
// { rle.addCondition(cc); }
rle.addNewCGConditions(category,cond,vars);
}
cg.addCategoryRuleInOrder(category,rle);
String res = rulelhs + " |--> " + rulerhs;
return res;
}
return "";
}
boolean isDirect() // either source or target is a direct attribute
{ if (src.getNavigation().size() <= 1)
{ return true; }
if (trg.getNavigation().size() <= 1)
{ return true; }
return false;
}
boolean isDirectSource() // source is a direct attribute
{ if (src.getNavigation().size() <= 1)
{ return true; }
return false;
}
boolean isDirectTarget() // target is a direct attribute
{ if (trg.getNavigation().size() <= 1)
{ return true; }
return false;
}
boolean is1MultiplicityTarget() // target not a collection
{ if (trg.isCollection())
{ return false; }
return true;
}
boolean isIdentityTarget() // target is an identity
{ if (trg.isIdentity())
{ return true; }
Attribute fatt = trg.getFinalFeature();
if (fatt != null && fatt.isIdentity())
{ return true; }
return false;
}
boolean notReferenceTarget() // target is not a reference
{ if (trg.isReference())
{ return false; }
return true;
}
boolean isComposedTarget() // target is a composed attribute
{ if (trg.getNavigation().size() > 1)
{ return true; }
return false;
}
boolean isExpressionMapping()
{ return srcvalue != null; }
boolean isValueAssignment()
{ return srcvalue != null && elementVariable == null; }
boolean isExpressionAssignment()
{ return srcvalue != null && elementVariable != null; }
boolean isStringAssignment()
{ return srcvalue != null && auxVariables.size() > 1; }
// But could occur even if srcvalue is not a string.
boolean isStringMapping()
{ return srcvalue != null && auxVariables.size() > 1 &&
srcvalue.getType().isString();
}
boolean isValueTyped()
{ // target and source are of a value type
Type st = src.getType();
Type tt = trg.getType();
if (Type.isValueType(st) && Type.isValueType(tt))
{ return true; }
return false;
}
void displayMappingKind()
{ if (isExpressionMapping() &&
!(srcvalue.getType().isString()))
{ System.out.println(">>> Expression mapping: " + this); }
if (isStringAssignment() && srcvalue.getType().isString())
{ System.out.println(">>> String mapping: " + this); }
if (isValueAssignment())
{ System.out.println(">>> Value mapping: " + this); }
}
boolean isPossibleFeatureMerge()
{ // of form s->before(sep) or s->after(sep), etc
if (srcvalue != null &&
(srcvalue instanceof BinaryExpression))
{ BinaryExpression be = (BinaryExpression) srcvalue;
if ("->before".equals(be.operator) || "->after".equals(be.operator))
{ return true; }
if ("->front".equals(be.operator) || "->last".equals(be.operator))
{ return true; }
if ("->first".equals(be.operator) || "->tail".equals(be.operator))
{ return true; }
}
return false;
}
Vector findMergeFamily(Vector ams, Vector seen)
{ // of form s->before(sep) or s->after(sep), etc
Vector res = new Vector();
res.add(this);
if (srcvalue != null &&
(srcvalue instanceof BinaryExpression))
{ BinaryExpression be = (BinaryExpression) srcvalue;
if ("->before".equals(be.operator))
{ Expression sep = be.getRight();
for (int i = 0; i < ams.size(); i++)
{ AttributeMatching amx = (AttributeMatching) ams.get(i);
if (amx.isExpressionAssignment() && !(seen.contains(amx)) &&
amx.srcvalue instanceof BinaryExpression)
{ BinaryExpression be2 = (BinaryExpression) amx.srcvalue;
if ("->after".equals(be2.getOperator()) &&
(sep + "").equals(be2.getRight() + "") &&
(be.getLeft() + "").equals(be2.getLeft() + ""))
{ res.add(amx);
return res;
}
}
}
}
else if ("->after".equals(be.operator))
{ Expression sep = be.getRight();
for (int i = 0; i < ams.size(); i++)
{ AttributeMatching amx = (AttributeMatching) ams.get(i);
if (amx.isExpressionAssignment() && !(seen.contains(amx)) &&
amx.srcvalue instanceof BinaryExpression)
{ BinaryExpression be2 = (BinaryExpression) amx.srcvalue;
if ("->before".equals(be2.getOperator()) &&
(sep + "").equals(be2.getRight() + "") &&
(be.getLeft() + "").equals(be2.getLeft() + ""))
{ res.add(amx);
return res;
}
}
}
}
}
return res;
}
Vector findMergeFamilySequence1(Vector ams, Vector seen)
{ // of form s->front() or s->last(), etc
Vector res = new Vector();
res.add(this);
if (srcvalue != null &&
(srcvalue instanceof UnaryExpression))
{ UnaryExpression be = (UnaryExpression) srcvalue;
if ("->front".equals(be.operator))
{ for (int i = 0; i < ams.size(); i++)
{ AttributeMatching amx = (AttributeMatching) ams.get(i);
if (amx.isExpressionAssignment() && !(seen.contains(amx)) &&
amx.srcvalue instanceof UnaryExpression)
{ UnaryExpression be2 = (UnaryExpression) amx.srcvalue;
if ("->last".equals(be2.getOperator()) &&
(be.getArgument() + "").equals(be2.getArgument() + ""))
{ res.add(amx);
return res;
}
}
}
}
else if ("->last".equals(be.operator))
{ for (int i = 0; i < ams.size(); i++)
{ AttributeMatching amx = (AttributeMatching) ams.get(i);
if (amx.isExpressionAssignment() && !(seen.contains(amx)) &&
amx.srcvalue instanceof UnaryExpression)
{ UnaryExpression be2 = (UnaryExpression) amx.srcvalue;
if ("->front".equals(be2.getOperator()) &&
(be.getArgument() + "").equals(be2.getArgument() + ""))
{ res.add(amx);
return res;
}
}
}
}
}
return res;
}
Vector findMergeFamilySequence2(Vector ams, Vector seen)
{ // of form s->tail() or s->first(), etc
Vector res = new Vector();
res.add(this);
if (srcvalue != null &&
(srcvalue instanceof UnaryExpression))
{ UnaryExpression be = (UnaryExpression) srcvalue;
if ("->first".equals(be.operator))
{ for (int i = 0; i < ams.size(); i++)
{ AttributeMatching amx = (AttributeMatching) ams.get(i);
if (amx.isExpressionAssignment() && !(seen.contains(amx)) &&
amx.srcvalue instanceof UnaryExpression)
{ UnaryExpression be2 = (UnaryExpression) amx.srcvalue;
if ("->tail".equals(be2.getOperator()) &&
(be.getArgument() + "").equals(be2.getArgument() + ""))
{ res.add(amx);
return res;
}
}
}
}
else if ("->tail".equals(be.operator))
{ for (int i = 0; i < ams.size(); i++)
{ AttributeMatching amx = (AttributeMatching) ams.get(i);
if (amx.isExpressionAssignment() && !(seen.contains(amx)) &&
amx.srcvalue instanceof UnaryExpression)
{ UnaryExpression be2 = (UnaryExpression) amx.srcvalue;
if ("->first".equals(be2.getOperator()) &&
(be.getArgument() + "").equals(be2.getArgument() + ""))
{ res.add(amx);
return res;
}
}
}
}
}
return res;
}
public boolean usedAsIntermediateClass(Entity e)
{ // E is the entity element type of some p : trg.path
if (e == null)
{ return false; }
String nme = e.getName();
if (trg.isComposed())
{ Vector path = trg.getNavigation();
for (int i = 0; i < path.size() - 1; i++)
{ Attribute p = (Attribute) path.get(i);
if ((p.getElementType() + "").equals(nme))
{ return true; }
}
}
return false;
}
public boolean unusedInSource(Attribute v)
{ String nme = v.getName();
if (nme.equals(srcname))
{ return false; }
if (src.isComposed())
{ Vector path = src.getNavigation();
for (int i = 0; i < path.size(); i++)
{ Attribute p = (Attribute) path.get(i);
if (p.getName().equals(nme))
{ return false; }
}
return true;
}
if (srcvalue != null)
{ if (srcvalue.hasVariable(nme))
{ return false; }
}
return true;
}
public boolean usedInSource(Attribute v)
{ if (v == src || v.equalByNameAndOwner(src) || v.equalToReverseDirection(src))
{ return true; }
if (src.isComposed())
{ Vector path = src.getNavigation();
for (int i = 0; i < path.size(); i++)
{ Attribute p = (Attribute) path.get(i);
if (v == p || v.equalByNameAndOwner(p))
{ return true; }
}
return false;
}
String nme = v.getName();
if (srcvalue != null)
{ if (srcvalue.hasVariable(nme))
{ return true; }
}
return false;
} // or src is the reverse
public double similarity(Map mm, Vector entities, Vector thesaurus)
{ // NMS similarity between src and trg
double namesim = ModelElement.similarity(srcname, trgname);
double namesemsim = Entity.nmsSimilarity(srcname, trgname, thesaurus);
double nsim = (namesim + 2*namesemsim - namesim*namesemsim);
double tsim = Attribute.partialTypeMatch(src,trg,mm,entities);
return nsim*tsim;
} // should be namesemsim not 2*namesemsim
public Vector enumConversions()
{ // Conversions from one enum type to a different one
Vector res = new Vector();
Type stype = src.getType();
Type ttype = trg.getType();
if (stype != null && stype.isEnumeration() &&
ttype != null && ttype.isEnumeration())
{ Maplet mm = new Maplet(stype,ttype);
res.add(mm);
}
return res;
}
public Vector boolEnumConversions(Vector names)
{ // Conversions from boolean type to enum
Vector res = new Vector();
Type stype = src.getType();
Type ttype = trg.getType();
if (stype != null && stype.isBoolean() &&
ttype != null && ttype.isEnumeration())
{ res.add(ttype);
names.add(src.getName());
}
return res;
}
public Vector enumBoolConversions(Vector names)
{ // Conversions from boolean type to enum
Vector res = new Vector();
Type stype = src.getType();
Type ttype = trg.getType();
if (ttype != null && ttype.isBoolean() &&
stype != null && stype.isEnumeration())
{ res.add(stype);
names.add(trg.getName());
}
return res;
}
public Vector stringEnumConversions()
{ // Conversions from String type to enum
Vector res = new Vector();
Type stype = src.getType();
Type ttype = trg.getType();
if (stype != null && stype.isString() &&
ttype != null && ttype.isEnumeration())
{ res.add(ttype); }
return res;
}
public Vector enumStringConversions()
{ // Conversions from enum type to String
Vector res = new Vector();
Type stype = src.getType();
Type ttype = trg.getType();
if (stype != null && stype.isEnumeration() &&
ttype != null && ttype.isString())
{ res.add(stype); }
return res;
}
public boolean isBidirectionalassociationMatching()
{ return src.isBidirectionalassociation() &&
trg.isBidirectionalassociation();
}
public Vector inverts(Entity srcent, Entity trgent, Vector ems)
{ Vector res = new Vector();
if (isStringAssignment())
{ // assume auxVariables.size() == 2
// v1 + " ~ " + v2 --> v inverts as
// v->before(" ~ ") --> v1, v->after(" ~ ") --> v2
Expression delim = new BasicExpression("\" ~ \"");
if (srcvalue instanceof BinaryExpression)
{ BinaryExpression sbe = (BinaryExpression) srcvalue;
if ("+".equals(sbe.operator))
{ Expression lbe = sbe.getLeft();
Expression rbe = sbe.getRight();
// Attribute var1 = (Attribute) auxVariables.get(0);
// Attribute var2 = (Attribute) auxVariables.get(1);
if (rbe instanceof BinaryExpression &&
"+".equals(((BinaryExpression) rbe).operator))
{ delim = (BasicExpression) ((BinaryExpression) rbe).getLeft();
System.out.println(">> Delimiter = " + delim);
}
else if (lbe instanceof BinaryExpression &&
"+".equals(((BinaryExpression) lbe).operator))
{ // (var1 + sep) + var2
delim = ((BinaryExpression) lbe).getRight();
System.out.println(">> Delimiter = " + delim);
}
}
}
delim.setType(new Type("String",null));
delim.setElementType(new Type("String",null));
BasicExpression etrg = new BasicExpression(trg);
etrg.setUmlKind(Expression.ATTRIBUTE);
BinaryExpression be1 = new BinaryExpression("->before", etrg, delim);
BinaryExpression be2 = new BinaryExpression("->after", etrg, delim);
be1.setType(new Type("String",null));
be1.setElementType(new Type("String",null));
be2.setType(new Type("String",null));
be2.setElementType(new Type("String",null));
Attribute v1 = (Attribute) auxVariables.get(0);
Attribute v2 = (Attribute) auxVariables.get(1);
res.add(new AttributeMatching(be1,v1));
res.add(new AttributeMatching(be2,v2));
return res;
} // In general could be several of these.
else if (isExpressionAssignment())
{ if ("self".equals(srcvalue + ""))
{ return null; } // inverted to condition instead
if (srcvalue instanceof SetExpression)
{ SetExpression sse = (SetExpression) srcvalue;
if (sse.isOrdered() && sse.size() >= 2 && trg.isOrdered())
{ // Sequence{r1,...,rn} --> trg inverts to trg->at(1) --> r1, ...,
// trg->at(n) --> rn
Expression v1 = sse.getExpression(0);
Expression v2 = sse.getExpression(1);
Attribute a1 = new Attribute(v1 + "",v1.getType(),
ModelElement.INTERNAL);
Attribute a2 = new Attribute(v2 + "",v2.getType(),
ModelElement.INTERNAL);
a1.setElementType(v1.getElementType());
a2.setElementType(v2.getElementType());
BasicExpression ind1 = new BasicExpression(1);
BasicExpression ind2 = new BasicExpression(2);
BasicExpression trge = new BasicExpression(trg);
trge.setUmlKind(Expression.ATTRIBUTE);
BinaryExpression at1 = new BinaryExpression("->at",trge,ind1);
at1.setType(trg.getElementType());
at1.setElementType(trg.getElementType());
BinaryExpression at2 = new BinaryExpression("->at",trge,ind2);
at2.setType(trg.getElementType());
at2.setElementType(trg.getElementType());
AttributeMatching am1 = new AttributeMatching(at1,a1);
AttributeMatching am2 = new AttributeMatching(at2,a2);
res.add(am1);
res.add(am2);
return res;
}
} // no elementVariable needed?
// if r1->including(r2) --> trg with trg ordered then invert to
// trg->front() --> r1, trg->last() --> r2
if (srcvalue instanceof BinaryExpression)
{ BinaryExpression sbe = (BinaryExpression) srcvalue;
if (sbe.operator.equals("->including") &&
sbe.left instanceof BasicExpression &&
sbe.right instanceof BasicExpression && trg.isOrdered())
{ BasicExpression lft = (BasicExpression) sbe.left;
BasicExpression rgt = (BasicExpression) sbe.right;
Attribute a1 = new Attribute(lft.data,lft.getType(),
ModelElement.INTERNAL);
Attribute a2 = new Attribute(rgt.data,rgt.getType(),
ModelElement.INTERNAL);
a1.setElementType(lft.getElementType());
a2.setElementType(rgt.getElementType());
Expression trge = new BasicExpression(trg);
UnaryExpression at1 = new UnaryExpression("->front",trge);
UnaryExpression at2 = new UnaryExpression("->last",trge);
at1.setType(trg.getType());
at1.setElementType(trg.getElementType());
at2.setType(trg.getElementType());
at2.setElementType(trg.getElementType()); // can't be a nested sequence?
res.add(new AttributeMatching(at1,a1));
res.add(new AttributeMatching(at2,a2));
return res;
}
} // no element variable needed?
// if r1->union(r2) --> trg with trg or r1 being sets then invert to
// trg --> r1, trg --> r2
if (srcvalue instanceof BinaryExpression)
{ BinaryExpression sbe = (BinaryExpression) srcvalue;
if (sbe.operator.equals("->union") &&
sbe.left instanceof BasicExpression &&
sbe.right instanceof BasicExpression &&
!(sbe.left.isOrdered() && trg.isOrdered()))
{ BasicExpression lft = (BasicExpression) sbe.left;
BasicExpression rgt = (BasicExpression) sbe.right;
Attribute a1 = new Attribute(lft.data,lft.getType(),
ModelElement.INTERNAL);
a1.setElementType(lft.getElementType());
Attribute a2 = new Attribute(rgt.data,rgt.getType(),
ModelElement.INTERNAL);
a2.setElementType(rgt.getElementType());
res.add(new AttributeMatching(trg,a1));
res.add(new AttributeMatching(trg,a2));
return res;
}
}
// if r1->select(p) --> r2 invert to
// A'->unionAll(r2)->includes(self) --> p, for B' --> B
if (srcvalue instanceof BinaryExpression)
{ BinaryExpression sbe = (BinaryExpression) srcvalue;
if (sbe.operator.equals("->select") &&
sbe.left instanceof BasicExpression &&
sbe.right instanceof BasicExpression &&
sbe.right.isBooleanValued())
{ BasicExpression lft = (BasicExpression) sbe.left;
BasicExpression rgt = (BasicExpression) sbe.right;
Type etval = srcvalue.getElementType();
if (etval != null && etval.isEntity() && trg.getElementType() != null &&
trg.getElementType().isEntity())
{ Entity b = etval.getEntity();
Entity b1 = trg.getElementType().getEntity();
BasicExpression selfexp = new BasicExpression("self");
// selfexp.setUmlkind(Expression.VARIABLE);
selfexp.setType(new Type(b1));
selfexp.setElementType(new Type(b1));
Attribute p = new Attribute(rgt.data,rgt.getType(),
ModelElement.INTERNAL);
p.setElementType(rgt.getElementType());
BasicExpression realtrgs = new BasicExpression(trgent);
BasicExpression r2exp = new BasicExpression(trg);
BinaryExpression allr2 = new BinaryExpression("->unionAll",realtrgs,r2exp);
BinaryExpression newleft = new BinaryExpression("->includes",allr2,selfexp);
EntityMatching bb1 = ModelMatching.getRealEntityMatching(b1,b,ems);
if (bb1 != null)
{ bb1.addAttributeMatch(new AttributeMatching(newleft,p)); }
// and it is an expression match
return null;
}
}
}
if (srcvalue instanceof BinaryExpression)
{ BinaryExpression sbe = (BinaryExpression) srcvalue;
// elems->closure(next) --> parts for ordered parts inverts as
// parts --> elems, next computation of parts/container --> next
// System.out.println("INVERSE OF: " + srcvalue + " --> " + trg);
// System.out.println(trg.isOrdered() + " " + trg.hasOpposite() + " " +
// ((BasicExpression) sbe.right).variable + " " +
// ((BasicExpression) sbe.right).isZeroOneRole());
if (sbe.operator.equals("->closure") && trg.isOrdered() &&
sbe.left instanceof BasicExpression && trg.hasOpposite() &&
sbe.right instanceof BasicExpression &&
((BasicExpression) sbe.right).variable != null &&
((BasicExpression) sbe.right).isZeroOneRole())
{ BasicExpression lft = (BasicExpression) sbe.left;
BasicExpression rgt = (BasicExpression) sbe.right;
String role1 = trg.getRole1(); // container
Attribute newrhs1 = new Attribute(sbe.left + "", sbe.left.getType(),
ModelElement.INTERNAL); // elems
newrhs1.setElementType(sbe.left.getElementType());
AttributeMatching newam = new AttributeMatching(trg,newrhs1);
res.add(newam);
Type targetref = src.getElementType();
if (targetref != null && targetref.isEntity())
{ Entity trgref = targetref.getEntity();
BasicExpression ownerparts = new BasicExpression(trg);
BasicExpression ownr = new BasicExpression(role1);
ownerparts.setUmlKind(Expression.ATTRIBUTE);
ownr.setUmlKind(Expression.ATTRIBUTE);
ownerparts.setObjectRef(ownr);
BasicExpression selfexp = new BasicExpression("self");
// should have umlkind = VARIABLE
selfexp.setType(new Type(trgref));
selfexp.setElementType(new Type(trgref));
BinaryExpression selfindex = new BinaryExpression("->indexOf", ownerparts, selfexp);
UnaryExpression ownerpartssize = new UnaryExpression("->size",ownerparts);
BinaryExpression test = new BinaryExpression("<", selfindex, ownerpartssize);
BinaryExpression nextindex = new BinaryExpression("+",selfindex,new BasicExpression(1));
BinaryExpression ownerpartsat = new BinaryExpression("->at", ownerparts, nextindex);
SetExpression emptyset = new SetExpression();
SetExpression nextset = new SetExpression();
nextset.addElement(ownerpartsat);
ConditionalExpression newlhs = new ConditionalExpression(test,nextset,emptyset);
Type sourceref = trg.getElementType();
if (sourceref != null && sourceref.isEntity())
{ Entity srcref = sourceref.getEntity();
Type restype = new Type("Set", null);
restype.setElementType(new Type(srcref)); // not trgref
ownerparts.setType(restype);
ownerparts.setElementType(new Type(srcref));
newlhs.setType(restype);
newlhs.setElementType(new Type(srcref));
newlhs.setBrackets(true);
AttributeMatching newatm =
new AttributeMatching(newlhs,rgt.variable);
Attribute varnew = new Attribute(Identifier.nextIdentifier("var$"),
newlhs.getElementType(),
ModelElement.INTERNAL);
varnew.setElementType(newlhs.getElementType());
newatm.setElementVariable(varnew);
EntityMatching bb1 = ModelMatching.getRealEntityMatching(srcref,trgref,ems);
if (bb1 != null)
{ bb1.addAttributeMatch(newatm); }
}
}
return res;
}
else if (sbe.operator.equals("->unionAll") && sbe.right instanceof BasicExpression &&
sbe.left instanceof BinaryExpression &&
((BinaryExpression) sbe.left).operator.equals("->closure"))
{ BinaryExpression clsre = (BinaryExpression) sbe.left;
BasicExpression f = (BasicExpression) sbe.right;
Expression g = clsre.right;
BasicExpression r = new BasicExpression(trg);
Type Rtype = r.getElementType();
BasicExpression Fclass = new BasicExpression(trgent);
Type Ftype = new Type(trgent);
String avalue = Identifier.nextIdentifier("var$");
BasicExpression ax = new BasicExpression(avalue);
ax.setType(Ftype);
ax.setElementType(Ftype);
BinaryExpression aInFclass = new BinaryExpression(":", ax, Fclass);
BasicExpression ar = new BasicExpression(trg);
ar.setObjectRef(ax);
BinaryExpression aAncestor = new BinaryExpression("->includesAll", r, ar);
BinaryExpression aStrict = new BinaryExpression("/=", r, ar);
BinaryExpression aStrictAncestor = new BinaryExpression("&",aAncestor,aStrict);
BinaryExpression ancestors = new BinaryExpression("|", aInFclass, aStrictAncestor);
// ancestors->selectMaximals(r.size) |--> g
// r - ancestors->unionAll(r) |--> f
UnaryExpression rsize = new UnaryExpression("->size", r);
BinaryExpression lhsgmap = new BinaryExpression("->selectMaximals", ancestors, rsize);
Type FSetType = new Type("Set",null);
FSetType.setElementType(Ftype);
lhsgmap.setType(FSetType);
lhsgmap.setElementType(Ftype);
AttributeMatching gmatch = new AttributeMatching(lhsgmap,g);
Attribute gmatchvar = new Attribute(Identifier.nextIdentifier("var$"), Ftype, ModelElement.INTERNAL);
gmatchvar.setElementType(Ftype);
gmatch.setElementVariable(gmatchvar);
res.add(gmatch);
BinaryExpression ancestorsUnionAllr = new BinaryExpression("->unionAll", ancestors, r);
BinaryExpression fmatchlhs = new BinaryExpression("-", r, ancestorsUnionAllr);
Type FRefSetType = new Type("Set",null);
FRefSetType.setElementType(Rtype);
fmatchlhs.setType(FRefSetType);
fmatchlhs.setElementType(Rtype);
AttributeMatching fmatch = new AttributeMatching(fmatchlhs,f);
Attribute fmatchvar = new Attribute(Identifier.nextIdentifier("var$"), Rtype, ModelElement.INTERNAL);
fmatchvar.setElementType(Rtype);
fmatch.setElementVariable(fmatchvar);
res.add(fmatch);
return res;
}
}
}
AttributeMatching invam = invert();
res.add(invam);
return res;
}
public AttributeMatching invert()
{ return new AttributeMatching(trg,src); }
// ignores any expression/value match
public static Vector invertCondition(Expression cond, Entity realsrc, Entity realtrg)
{ Vector res = new Vector();
if (cond instanceof BinaryExpression)
{ BinaryExpression condbe = (BinaryExpression) cond;
if (condbe.operator.equals("="))
{ // feature = value inverts as value --> feature
if ((condbe.left.umlkind == Expression.VARIABLE ||
condbe.left.umlkind == Expression.ATTRIBUTE) &&
condbe.left instanceof BasicExpression &&
((BasicExpression) condbe.left).variable != null &&
condbe.right.umlkind != Expression.VARIABLE &&
condbe.right.umlkind != Expression.ATTRIBUTE)
{ Attribute trgfeature = ((BasicExpression) condbe.left).variable;
Attribute var = null;
// System.out.println(">> Target feature is " + trgfeature +
// " " + trgfeature.getType());
Expression newleft = null;
if ((condbe.right + "").equals("self"))
{ newleft = new BasicExpression("self");
newleft.setType(new Type(realtrg));
newleft.setElementType(new Type(realtrg));
var = new Attribute("self",
new Type(realtrg),
ModelElement.INTERNAL);