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package org.eclipse.papyrus.uml.diagram.sequence.util;
import java.util.Collection;
import java.util.Iterator;
import org.eclipse.emf.common.util.EList;
import org.eclipse.papyrus.infra.tools.util.StringHelper;
import org.eclipse.papyrus.uml.tools.utils.ICustomAppearance;
import org.eclipse.papyrus.uml.tools.utils.MultiplicityElementUtil;
import org.eclipse.papyrus.uml.tools.utils.NamedElementUtil;
import org.eclipse.papyrus.uml.tools.utils.ParameterUtil;
import org.eclipse.papyrus.uml.tools.utils.TypeUtil;
import org.eclipse.papyrus.uml.tools.utils.TypedElementUtil;
import org.eclipse.papyrus.uml.tools.utils.ValueSpecificationUtil;
import org.eclipse.uml2.uml.Constraint;
import org.eclipse.uml2.uml.Message;
import org.eclipse.uml2.uml.Operation;
import org.eclipse.uml2.uml.Parameter;
import org.eclipse.uml2.uml.ParameterDirectionKind;
import org.eclipse.uml2.uml.ValueSpecification;
public class OperationUtil {
public static String getCustomLabel(Message e, int paramIndex, Parameter parameter, Collection<String> displayValue) {
StringBuffer buffer = new StringBuffer();
// visibility
buffer.append(" ");
if(displayValue.contains(ICustomAppearance.DISP_VISIBILITY)) {
buffer.append(NamedElementUtil.getVisibilityAsSign(parameter));
}
// direction property
if(displayValue.contains(ICustomAppearance.DISP_PARAMETER_DIRECTION)) {
buffer.append(" ");
buffer.append(parameter.getDirection().getLiteral());
}
boolean showEqualMark = false;
// name
if(displayValue.contains(ICustomAppearance.DISP_PARAMETER_NAME)) {
buffer.append(" ");
String name = StringHelper.trimToEmpty(parameter.getName());
if(name.trim().length() > 0) {
showEqualMark = true;
}
buffer.append(name);
}
if(displayValue.contains(ICustomAppearance.DISP_PARAMETER_TYPE)) {
// type
if(parameter.getType() != null) {
buffer.append(": " + StringHelper.trimToEmpty(parameter.getType().getName()));
} else {
buffer.append(": " + TypeUtil.UNDEFINED_TYPE_NAME);
}
showEqualMark = true;
}
if(displayValue.contains(ICustomAppearance.DISP_PARAMETER_MULTIPLICITY)) {
// multiplicity -> do not display [1]
String multiplicity = MultiplicityElementUtil.getMultiplicityAsString(parameter);
buffer.append(multiplicity);
}
if(displayValue.contains(ICustomAppearance.DISP_DERIVE)) {
String value = getValue(e, paramIndex, parameter);
if(value != null) {
if(showEqualMark) {
buffer.append(" = ");
}
buffer.append(value);
}
} else if(displayValue.contains(ICustomAppearance.DISP_PARAMETER_DEFAULT)) {
// default value
if(parameter.getDefault() != null) {
if(showEqualMark) {
buffer.append(" = ");
}
buffer.append(parameter.getDefault());
}
}
if(displayValue.contains(ICustomAppearance.DISP_MODIFIERS)) {
boolean multiLine = displayValue.contains(ICustomAppearance.DISP_MULTI_LINE);
// property modifiers
String modifiers = ParameterUtil.getModifiersAsString(parameter, multiLine);
if(!modifiers.equals("")) {
if(multiLine) {
buffer.append("\n");
}
buffer.append(modifiers);
}
}
return buffer.toString();
}
private static String getValue(Message e, int paramIndex, Parameter parameter) {
try {
EList<ValueSpecification> arguments = e.getArguments();
if(arguments.size() > paramIndex) {
return ValueSpecificationUtil.getSpecificationValue(arguments.get(paramIndex));
}
} catch (Exception e1) {
}
return null;
}
public static String getCustomLabel(Message message, Operation operation, Collection<String> displayValue) {
StringBuffer buffer = new StringBuffer();
buffer.append(" "); // adds " " first for correct display considerations
// visibility
if(displayValue.contains(ICustomAppearance.DISP_VISIBILITY)) {
buffer.append(NamedElementUtil.getVisibilityAsSign(operation));
}
// name
if(displayValue.contains(ICustomAppearance.DISP_NAME)) {
buffer.append(" ");
buffer.append(StringHelper.trimToEmpty(operation.getName()));
}
//
// parameters : '(' parameter-list ')'
buffer.append("(");
buffer.append(getParametersAsString(message, operation, displayValue));
buffer.append(")");
// return type
if(displayValue.contains(ICustomAppearance.DISP_RT_TYPE) || displayValue.contains(ICustomAppearance.DISP_TYPE)) {
buffer.append(getReturnTypeAsString(operation, displayValue));
}
// modifiers
if(displayValue.contains(ICustomAppearance.DISP_MODIFIERS)) {
String modifiers = getModifiersAsString(operation);
if(!modifiers.equals("")) {
buffer.append("{");
buffer.append(modifiers);
buffer.append("}");
}
}
return buffer.toString();
}
/**
* Returns operation modifiers as string, separated with comma.
*
* @return a string containing the modifiers
*/
private static String getModifiersAsString(Operation operation) {
StringBuffer buffer = new StringBuffer();
boolean needsComma = false;
// Return parameter modifiers
Parameter returnParameter = OperationUtil.getReturnParameter(operation);
if(returnParameter != null) {
// non unique parameter
if(!returnParameter.isUnique()) {
buffer.append("nonunique");
needsComma = true;
}
// return parameter has ordered values
if(returnParameter.isOrdered()) {
if(needsComma) {
buffer.append(", ");
}
buffer.append("ordered");
needsComma = true;
}
}
// is the operation a query ?
if(operation.isQuery()) {
if(needsComma) {
buffer.append(", ");
}
buffer.append("query");
needsComma = true;
}
// is the operation redefining another operation ?
Iterator<Operation> it = operation.getRedefinedOperations().iterator();
while(it.hasNext()) {
Operation currentOperation = it.next();
if(needsComma) {
buffer.append(", ");
}
buffer.append("redefines ");
buffer.append(currentOperation.getName());
needsComma = true;
}
// has the operation a constraint ?
Iterator<Constraint> it2 = operation.getOwnedRules().iterator();
while(it2.hasNext()) {
Constraint constraint = it2.next();
if(needsComma) {
buffer.append(", ");
}
if(constraint.getSpecification() != null) {
buffer.append(constraint.getSpecification().stringValue());
}
needsComma = true;
}
return buffer.toString();
}
/**
* Returns return parameter label as a string, string parametrized with a style mask.
*
* @param style
* the mask that indicates which element to display
* @return a string containing the return parameter type
*/
private static String getReturnTypeAsString(Operation operation, Collection<String> displayValue) {
boolean displayType = displayValue.contains(ICustomAppearance.DISP_RT_TYPE) || displayValue.contains(ICustomAppearance.DISP_TYPE);
boolean displayMultiplicity = displayValue.contains(ICustomAppearance.DISP_RT_MULTIPLICITY) || displayValue.contains(ICustomAppearance.DISP_MULTIPLICITY);
StringBuffer label = new StringBuffer("");
// Retrieve the return parameter (assume to be unique if defined)
Parameter returnParameter = getReturnParameter(operation);
// Create the string for the return type
if(returnParameter == null) {
// no-operation: label = ""
} else if(!displayType && !displayMultiplicity) {
// no-operation: label = ""
} else {
label.append(": ");
if(displayType) {
label.append(TypedElementUtil.getTypeAsString(returnParameter));
}
if(displayMultiplicity) {
label.append(MultiplicityElementUtil.getMultiplicityAsString(returnParameter));
}
}
return label.toString();
}
/**
* Gives the return parameter for this operation, or <code>null</code> if none exists.
*
* @return the return parameter of the operation or <code>null</code>
*/
private static Parameter getReturnParameter(Operation operation) {
// Retrieve the return parameter (assume to be unique if defined)
Parameter returnParameter = null;
Iterator<Parameter> it = operation.getOwnedParameters().iterator();
while((returnParameter == null) && (it.hasNext())) {
Parameter parameter = it.next();
if(parameter.getDirection().equals(ParameterDirectionKind.RETURN_LITERAL)) {
returnParameter = parameter;
}
}
return returnParameter;
}
/**
* Returns operation parameters as a string, the label is customized using a bit mask
*
* @param e
*
* @return a string containing all parameters separated by commas
*/
private static String getParametersAsString(Message e, Operation operation, Collection<String> displayValue) {
StringBuffer paramString = new StringBuffer();
Iterator<Parameter> paramIterator = operation.getOwnedParameters().iterator();
boolean firstParameter = true;
int paramIndex = 0;
while(paramIterator.hasNext()) {
Parameter parameter = paramIterator.next();
// Do not include return parameters
if(!parameter.getDirection().equals(ParameterDirectionKind.RETURN_LITERAL)) {
// get the label for this parameter
String parameterString = getCustomLabel(e, paramIndex, parameter, displayValue).trim();
paramIndex++;
if(!parameterString.equals("")) {
if(!firstParameter) {
paramString.append(", ");
}
paramString.append(parameterString);
firstParameter = false;
}
}
}
return paramString.toString();
}
}
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