pollymc/logic/MMCJson.cpp

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#include "MMCJson.h"
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#include <QString>
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#include <QUrl>
#include <QStringList>
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#include <math.h>
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QJsonDocument MMCJson::parseDocument(const QByteArray &data, const QString &what)
{
QJsonParseError error;
QJsonDocument doc = QJsonDocument::fromJson(data, &error);
if (error.error != QJsonParseError::NoError)
{
throw JSONValidationError(what + " is not valid JSON: " + error.errorString() + " at " + error.offset);
}
return doc;
}
bool MMCJson::ensureBoolean(const QJsonValue val, const QString what)
{
if (!val.isBool())
throw JSONValidationError(what + " is not boolean");
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return val.toBool();
}
QJsonValue MMCJson::ensureExists(QJsonValue val, const QString what)
{
if(val.isUndefined() || val.isUndefined())
throw JSONValidationError(what + " does not exist");
return val;
}
QJsonArray MMCJson::ensureArray(const QJsonValue val, const QString what)
{
if (!val.isArray())
throw JSONValidationError(what + " is not an array");
return val.toArray();
}
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QJsonArray MMCJson::ensureArray(const QJsonDocument &val, const QString &what)
{
if (!val.isArray())
{
throw JSONValidationError(what + " is not an array");
}
return val.array();
}
double MMCJson::ensureDouble(const QJsonValue val, const QString what)
{
if (!val.isDouble())
throw JSONValidationError(what + " is not a number");
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return val.toDouble();
}
int MMCJson::ensureInteger(const QJsonValue val, const QString what)
{
double ret = ensureDouble(val, what);
if (fmod(ret, 1) != 0)
throw JSONValidationError(what + " is not an integer");
return ret;
}
QJsonObject MMCJson::ensureObject(const QJsonValue val, const QString what)
{
if (!val.isObject())
throw JSONValidationError(what + " is not an object");
return val.toObject();
}
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QJsonObject MMCJson::ensureObject(const QJsonDocument val, const QString what)
{
if (!val.isObject())
throw JSONValidationError(what + " is not an object");
return val.object();
}
QString MMCJson::ensureString(const QJsonValue val, const QString what)
{
if (!val.isString())
throw JSONValidationError(what + " is not a string");
return val.toString();
}
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QUrl MMCJson::ensureUrl(const QJsonValue &val, const QString &what)
{
const QUrl url = QUrl(ensureString(val, what));
if (!url.isValid())
{
throw JSONValidationError(what + " is not an url");
}
return url;
}
QJsonDocument MMCJson::parseFile(const QString &filename, const QString &what)
{
QFile f(filename);
if (!f.open(QFile::ReadOnly))
{
throw FileOpenError(f);
}
return parseDocument(f.readAll(), what);
}
int MMCJson::ensureInteger(const QJsonValue val, QString what, const int def)
{
if (val.isUndefined())
return def;
return ensureInteger(val, what);
}
void MMCJson::writeString(QJsonObject &to, QString key, QString value)
{
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if (!value.isEmpty())
{
to.insert(key, value);
}
}
void MMCJson::writeStringList(QJsonObject &to, QString key, QStringList values)
{
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if (!values.isEmpty())
{
QJsonArray array;
for(auto value: values)
{
array.append(value);
}
to.insert(key, array);
}
}
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QStringList MMCJson::ensureStringList(const QJsonValue val, QString what)
{
const QJsonArray array = ensureArray(val, what);
QStringList out;
for (const auto value : array)
{
out.append(ensureString(value));
}
return out;
}