/*******************************************************************************
 * Copyright (c) 2010 SAP AG.
 * 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
 *
 * Contributors:
 *    Emil Simeonov - initial API and implementation.
 *    Dimitar Donchev - initial API and implementation.
 *    Dimitar Tenev - initial API and implementation.
 *    Nevena Manova - initial API and implementation.
 *    Georgi Konstantinov - initial API and implementation.
 *******************************************************************************/
package org.eclipse.wst.sse.sieditor.model.validation.constraints;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.validation.IValidationContext;
import org.eclipse.emf.validation.model.ConstraintStatus;
import org.eclipse.wst.wsdl.Binding;
import org.eclipse.wst.wsdl.Definition;
import org.eclipse.wst.wsdl.PortType;
import org.eclipse.xsd.util.XSDConstants;

import org.eclipse.wst.sse.sieditor.model.i18n.Messages;

public class BindingPortType extends AbstractConstraint {

    @SuppressWarnings("unchecked")
    @Override
    protected IStatus doValidate(final IValidationContext ctx) {
        final EObject target = ctx.getTarget();

        if (target instanceof Definition) {
            // validate all bindings
            final Definition definition = (Definition) target;
            final EList<Binding> bindings = definition.getEBindings();
            final List<IStatus> statusList = new ArrayList<IStatus>(bindings.size());
            for (final Binding binding : bindings) {
                statusList.add(validateBinding(binding, ctx));
            }
            return createStatus(ctx, statusList);

        } else {
            // validate just this binding
            return validateBinding((Binding) target, ctx);
        }

    }

    private IStatus validateBinding(final Binding binding, final IValidationContext ctx) {
        final PortType portType = binding.getEPortType();
        if (portType == null || portType.isUndefined()) {
            final String portTypeName = binding.getElement().getAttribute(XSDConstants.TYPE_ATTRIBUTE);
            return ConstraintStatus.createStatus(ctx, binding, null, Messages.BindingPortType_0, portTypeName, binding.getQName()
                    .getLocalPart());
        }

        return ConstraintStatus.createSuccessStatus(ctx, binding, null);
    }

    @Override
    protected boolean shouldExecute(final IValidationContext ctx) {
        final EObject target = ctx.getTarget();
        boolean result = true;

        if (isBatchValidation(ctx)) {
            result = target instanceof Definition;
        }

        if (!result) {
            ctx.skipCurrentConstraintFor(target);
        }

        return result;
    }

}