xref: /external/parameter-framework/upstream/parameter/TypeElement.cpp

/*
 * Copyright (c) 2011-2015, Intel Corporation
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 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation and/or
 * other materials provided with the distribution.
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 * 3. Neither the name of the copyright holder nor the names of its contributors
 * may be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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#include "TypeElement.h"
#include "MappingData.h"
#include "Tokenizer.h"
#include "InstanceConfigurableElement.h"
#include "Utility.h"
#include <list>
#include <assert.h>

#define base CElement

CTypeElement::CTypeElement(const std::string &strName) : base(strName)
{
}

CTypeElement::~CTypeElement()
{
    delete _pMappingData;
}

bool CTypeElement::isScalar() const
{
    return !_arrayLength;
}

size_t CTypeElement::getArrayLength() const
{
    return _arrayLength;
}

int CTypeElement::toPlainInteger(int iSizeOptimizedData) const
{
    return iSizeOptimizedData;
}

bool CTypeElement::getMappingData(const std::string &strKey, const std::string *&pStrValue) const
{
    if (_pMappingData) {

        return _pMappingData->getValue(strKey, pStrValue);
    }
    return false;
}

bool CTypeElement::hasMappingData() const
{
    return !!_pMappingData;
}

// Element properties
void CTypeElement::showProperties(std::string &strResult) const
{
    // The description attribute may be found in the type and not from instance.
    showDescriptionProperty(strResult);
    // Prevent base from being called from the Parameter Type context as
    // it would lead to duplicate the name attribute (duplicated in the type and instance
    // which have a common base Element)
}

void CTypeElement::populate(CElement *pElement) const
{
    // Populate children
    size_t uiChild;
    size_t uiNbChildren = getNbChildren();

    for (uiChild = 0; uiChild < uiNbChildren; uiChild++) {

        const CTypeElement *pChildTypeElement =
            static_cast<const CTypeElement *>(getChild(uiChild));

        CInstanceConfigurableElement *pInstanceConfigurableChildElement =
            pChildTypeElement->instantiate();

        // Affiliate
        pElement->addChild(pInstanceConfigurableChildElement);
    }
}

bool CTypeElement::fromXml(const CXmlElement &xmlElement,
                           CXmlSerializingContext &serializingContext)
{
    // Array Length attribute
    xmlElement.getAttribute("ArrayLength", _arrayLength);
    // Manage mapping attribute
    std::string rawMapping;
    if (xmlElement.getAttribute("Mapping", rawMapping) && !rawMapping.empty()) {

        std::string error;
        if (!getMappingData()->init(rawMapping, error)) {

            serializingContext.setError("Invalid Mapping data from XML element '" +
                                        xmlElement.getPath() + "': " + error);
            return false;
        }
    }
    return base::fromXml(xmlElement, serializingContext);
}

CInstanceConfigurableElement *CTypeElement::instantiate() const
{
    CInstanceConfigurableElement *pInstanceConfigurableElement = doInstantiate();

    // Populate
    populate(pInstanceConfigurableElement);

    return pInstanceConfigurableElement;
}

CMappingData *CTypeElement::getMappingData()
{
    if (!_pMappingData) {

        _pMappingData = new CMappingData;
    }
    return _pMappingData;
}

std::string CTypeElement::getFormattedMapping(const CTypeElement *predecessor) const
{
    std::list<std::string> mappings;
    std::string mapping;

    // Try predecessor type first, then myself (in order to have higher-level
    // mappings displayed first)
    if (predecessor) {
        mapping = predecessor->getFormattedMapping();
        if (not mapping.empty()) {
            mappings.push_back(mapping);
        }
    }

    // Explicitly call the root implementation instead of calling it virtually
    // (otherwise, it will infinitely recurse).
    mapping = CTypeElement::getFormattedMapping();
    if (not mapping.empty()) {
        mappings.push_back(mapping);
    }

    return utility::asString(mappings, ", ");
}

std::string CTypeElement::getFormattedMapping() const
{
    if (_pMappingData) {

        return _pMappingData->asString();
    }
    return "";
}

// From IXmlSource
void CTypeElement::toXml(CXmlElement &xmlElement, CXmlSerializingContext &serializingContext) const
{
    if (!isScalar()) {

        xmlElement.setAttribute("ArrayLength", getArrayLength());
    }

    base::toXml(xmlElement, serializingContext);
}