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/**
 * Copyright (c) 2008-2012 EBM WebSourcing, 2012-2018 Linagora
 * 
 * This program/library is free software: you can redistribute it and/or modify
 * it under the terms of the New BSD License (3-clause license).
 *
 * This program/library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the New BSD License (3-clause license)
 * for more details.
 *
 * You should have received a copy of the New BSD License (3-clause license)
 * along with this program/library; If not, see http://directory.fsf.org/wiki/License:BSD_3Clause/
 * for the New BSD License (3-clause license).
 */
 
package org.ow2.easywsdl.wsdl.impl.wsdl11;

import java.util.List;
import java.util.logging.Logger;

import javax.xml.bind.JAXBElement;
import javax.xml.namespace.QName;

import org.ow2.easywsdl.wsdl.api.Fault;
import org.ow2.easywsdl.wsdl.api.Input;
import org.ow2.easywsdl.wsdl.api.Operation;
import org.ow2.easywsdl.wsdl.api.Output;
import org.ow2.easywsdl.wsdl.api.WSDLException;
import org.ow2.easywsdl.wsdl.api.abstractElmt.AbstractInterfaceTypeImpl;
import org.ow2.easywsdl.wsdl.api.abstractElmt.AbstractOperationImpl;
import org.ow2.easywsdl.wsdl.api.abstractElmt.AbstractWSDLElementImpl;
import org.ow2.easywsdl.wsdl.org.xmlsoap.schemas.wsdl.ObjectFactory;
import org.ow2.easywsdl.wsdl.org.xmlsoap.schemas.wsdl.TFault;
import org.ow2.easywsdl.wsdl.org.xmlsoap.schemas.wsdl.TOperation;
import org.ow2.easywsdl.wsdl.org.xmlsoap.schemas.wsdl.TParam;

/**
 * @author Nicolas Salatge - EBM WebSourcing
 */
public class OperationImpl extends
		AbstractOperationImpl implements
		Operation {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	private static final Logger LOG = Logger.getLogger(OperationImpl.class.getName());

	private ObjectFactory objectFactory = new ObjectFactory();

	public OperationImpl(final TOperation op, final InterfaceTypeImpl itf) {
		super(op, itf);
		this.itf = itf;

		// get the documentation
		this.documentation = new org.ow2.easywsdl.wsdl.impl.wsdl11.DocumentationImpl(
				this.model.getDocumentation(), this);

		for (final JAXBElement item : this.model.getRest()) {

			Object value = item.getValue();

			// get input
			if (isInput(item, value)) {
				this.input = new org.ow2.easywsdl.wsdl.impl.wsdl11.InputImpl(
						(TParam) value, this);
			}

			// get output
			if (isOutput(item, value)) {
				this.output = new org.ow2.easywsdl.wsdl.impl.wsdl11.OutputImpl(
						(TParam) value, this);
			}

			// get fault
			if (isFault(value)) {
				this.faults
						.add(new org.ow2.easywsdl.wsdl.impl.wsdl11.FaultImpl(
								(TFault) value, this));
			}
		}

	}

	private boolean isFault(Object value) {
		return value instanceof TFault;
	}

	private boolean isOutput(final JAXBElement item, Object value) {
		return value instanceof TParam
				&& item.getName().equals(
						new QName("http://schemas.xmlsoap.org/wsdl/",
								"output"));
	}

	private boolean isInput(final JAXBElement item, Object value) {
		return value instanceof TParam
				&& item.getName().equals(
						new QName("http://schemas.xmlsoap.org/wsdl/",
								"input"));
	}

	public void addFault(final Fault fault) {
		JAXBElement faultElem = objectFactory
				.createTOperationFault((TFault) ((AbstractWSDLElementImpl) fault)
						.getModel());
		super.getFaults().add(fault);
		this.model.getRest().add(faultElem);
	}

	@Override
	public void setInput(Input input) {
		if (this.input == null) {
			// set input
			JAXBElement inputElem = objectFactory
					.createTOperationInput((TParam) ((AbstractWSDLElementImpl) input)
							.getModel());
			this.model.getRest().add(inputElem);
		} else {
			// change input
			for (final JAXBElement item : this.model.getRest()) {
				Object value = item.getValue();
				if (isInput(item, value)) {
					item.setValue((TParam) ((AbstractWSDLElementImpl) input)
							.getModel());
					break;
				}
			}
		}
		super.setInput(input);

	}

	@Override
	public void setOutput(Output output) {
		if (output == null) {
			// delete the internal output
			this.output = null;
			for (final JAXBElement item : this.model.getRest()) {
				Object value = item.getValue();
				if (isOutput(item, value)) {
					item.setValue(null);
					break;
				}
			}
		} else {
			if (this.output == null) {
				// create
				JAXBElement outputElem = objectFactory
						.createTOperationOutput((TParam) ((AbstractWSDLElementImpl) output)
								.getModel());
				this.model.getRest().add(outputElem);
			} else {
				// change output
				for (final JAXBElement item : this.model.getRest()) {
					Object value = item.getValue();
					if (isOutput(item, value)) {
						item
								.setValue((TParam) ((AbstractWSDLElementImpl) output)
										.getModel());
						break;
					}
				}
			}
		}
		super.setOutput(output);
	}

	@SuppressWarnings("unchecked")
	public QName getQName() {
		return new QName(((AbstractInterfaceTypeImpl) this.getInterface())
				.getDescription().getTargetNamespace(), this.model.getName());
	}

	public List getParameterOrdering() {
		List res = this.model.getParameterOrder();
		if ((res != null) && (res.isEmpty())) {
			res = null;
		}
		return res;
	}

	public Fault removeFault(final String name) {
        throw new UnsupportedOperationException();
	}

	public void setQName(final QName name) {
		this.model.setName(name.getLocalPart());
	}

	public void setParameterOrdering(final List parameterOrder) {
        throw new UnsupportedOperationException();
	}

	public MEPPatternConstants getPattern() {
		MEPPatternConstants pattern = null;
		for (final JAXBElement item : this.model.getRest()) {
			Object value = item.getValue();
			if (isOutput(item, value)) {
				pattern = MEPPatternConstants.IN_OUT;
			} else if (isInput(item, value) && (pattern == null)) {
				pattern = MEPPatternConstants.IN_ONLY;
			}
		}
		return pattern;
	}

	public void setPattern(final MEPPatternConstants pattern)
			throws WSDLException {
		if ((pattern.equals(MEPPatternConstants.IN_ONLY))
				|| (pattern.equals(MEPPatternConstants.ROBUST_IN_ONLY))) {
			this.setOutput(null);
		} else {
			LOG
					.warning("Do nothing: pattern attribute do not exist in wsdl 1.1");
		}
	}

	public Fault getFaultByElementName(final QName name) {
		Fault res = null;
		for (final Fault f : this.faults) {
			if ((f.getElement() != null)
					&& (f.getElement().getQName().equals(name))) {
				res = f;
				break;
			}
		}
		return res;
	}

	public Fault removeFaultByElementName(final QName name) {
        throw new UnsupportedOperationException();
	}

	public Fault createFault() {
		return new FaultImpl(new TFault(), this);
	}

	public Input createInput() {
		return new InputImpl(new TParam(), this);
	}

	public Output createOutput() {
		return new OutputImpl(new TParam(), this);
	}

}