xref: /aosp_15_r20/external/parameter-framework/upstream/parameter/CompoundRule.cpp (revision c33452fb792a5495ec310a9626f2638b053af5dd)

/*
 * Copyright (c) 2011-2014, Intel Corporation
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 * are permitted provided that the following conditions are met:
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 * 1. Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
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 * 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
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 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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#include "CompoundRule.h"
#include "RuleParser.h"

#define base CRule

using std::string;

// Types
const char *CCompoundRule::_apcTypes[2] = {"Any", "All"};

// Class kind
string CCompoundRule::getKind() const
{
    return "CompoundRule";
}

// Returns true if children dynamic creation is to be dealt with
bool CCompoundRule::childrenAreDynamic() const
{
    return true;
}

// Content dumping
string CCompoundRule::logValue(utility::ErrorContext & /*ctx*/) const
{
    // Type
    return _apcTypes[_bTypeAll];
}

// Parse
bool CCompoundRule::parse(CRuleParser &ruleParser, string &strError)
{
    // Get rule type
    for (size_t typeIndex = 0; typeIndex < 2; typeIndex++) {

        if (ruleParser.getType() == _apcTypes[typeIndex]) {

            // Set type
            _bTypeAll = typeIndex != 0;

            return true;
        }
    }

    // Failed
    strError = "Unknown compound rule type: ";
    strError += ruleParser.getType();

    return false;
}

// Dump
string CCompoundRule::dump() const
{
    string output = string(_apcTypes[_bTypeAll]) + "{";

    // Children
    size_t uiChild;
    size_t uiNbChildren = getNbChildren();
    bool bFirst = true;

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

        if (!bFirst) {

            output += ", ";
        }

        // Dump inner rule
        const CRule *pRule = static_cast<const CRule *>(getChild(uiChild));

        output += pRule->dump();

        bFirst = false;
    }

    output += "}";
    return output;
}

// Rule check
bool CCompoundRule::matches() const
{
    size_t uiChild;
    size_t uiNbChildren = getNbChildren();

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

        const CRule *pRule = static_cast<const CRule *>(getChild(uiChild));

        if (pRule->matches() ^ _bTypeAll) {

            return !_bTypeAll;
        }
    }
    return _bTypeAll;
}

// From IXmlSink
bool CCompoundRule::fromXml(const CXmlElement &xmlElement,
                            CXmlSerializingContext &serializingContext)
{
    // Get type
    string strType;
    xmlElement.getAttribute("Type", strType);
    _bTypeAll = strType == _apcTypes[true];

    // Base
    return base::fromXml(xmlElement, serializingContext);
}

// From IXmlSource
void CCompoundRule::toXml(CXmlElement &xmlElement, CXmlSerializingContext &serializingContext) const
{
    // Set type
    xmlElement.setAttribute("Type", _apcTypes[_bTypeAll]);

    // Base
    base::toXml(xmlElement, serializingContext);
}