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diff --git a/src/libs/installer/componentalias.h b/src/libs/installer/componentalias.h
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+/**************************************************************************
+**
+** Copyright (C) 2023 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt Installer Framework.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+**************************************************************************/
+
+#ifndef COMPONENTALIAS_H
+#define COMPONENTALIAS_H
+
+#include "installer_global.h"
+
+#include <QHash>
+#include <QMetaEnum>
+#include <QString>
+#include <QSet>
+
+namespace QInstaller {
+
+class Component;
+class ComponentAlias;
+class PackageManagerCore;
+
+struct INSTALLER_EXPORT AliasSource
+{
+    enum class SourceFileFormat {
+        Unknown = -1,
+        Xml = 0,
+        Json
+    };
+
+    AliasSource();
+    AliasSource(SourceFileFormat aFormat, const QString &aFilename, int aPriority);
+    AliasSource(const AliasSource &other);
+
+    SourceFileFormat format;
+    QString filename;
+    int priority;
+};
+
+INSTALLER_EXPORT hashValue qHash(const AliasSource &key, hashValue seed);
+INSTALLER_EXPORT bool operator==(const AliasSource &lhs, const AliasSource &rhs);
+
+class INSTALLER_EXPORT AliasFinder
+{
+public:
+    using AliasData = QVariantMap;
+    using AliasDataHash = QMultiHash<QString, AliasData>;
+
+    enum struct Resolution {
+        AddNew,
+        KeepExisting,
+        RemoveExisting
+    };
+
+    explicit AliasFinder(PackageManagerCore *core);
+    ~AliasFinder();
+
+    bool run();
+    QList<ComponentAlias *> aliases() const;
+
+    void setAliasSources(const QSet<AliasSource> &sources);
+
+private:
+    void clear();
+    Resolution checkPriorityAndVersion(const AliasData &data) const;
+
+    bool parseXml(AliasSource source);
+    bool parseJson(AliasSource source);
+
+private:
+    PackageManagerCore *const m_core;
+
+    QSet<AliasSource> m_sources;
+    AliasDataHash m_aliasData;
+    QHash<QString, ComponentAlias *> m_aliases;
+};
+
+class INSTALLER_EXPORT ComponentAlias : public QObject
+{
+    Q_OBJECT
+    Q_DISABLE_COPY_MOVE(ComponentAlias)
+
+public:
+    enum UnstableError {
+        ReferenceToUnstable = 0,
+        MissingComponent,
+        UnselectableComponent,
+        MissingAlias,
+        ComponentNameConfict
+    };
+    Q_ENUM(UnstableError)
+
+    ComponentAlias(PackageManagerCore *core);
+    ~ComponentAlias();
+
+    QString name() const;
+    QString displayName() const;
+    QString description() const;
+
+    QString version() const;
+
+    bool isVirtual() const;
+
+    bool isSelected() const;
+    void setSelected(bool selected);
+
+    QList<Component *> components();
+    QList<ComponentAlias *> aliases();
+
+    QString value(const QString &key, const QString &defaultValue = QString()) const;
+    void setValue(const QString &key, const QString &value);
+    QStringList keys() const;
+
+    bool isUnstable() const;
+    void setUnstable(UnstableError error, const QString &message = QString());
+
+private:
+    void addRequiredAliases(const QStringList &aliases, const bool optional);
+    void addRequiredComponents(const QStringList &components, const bool optional);
+
+private:
+    PackageManagerCore *const m_core;
+
+    QHash<QString, QString> m_variables;
+
+    bool m_selected;
+    bool m_unstable;
+
+    QList<Component *> m_components;
+    QList<ComponentAlias *> m_aliases;
+};
+
+} // namespace QInstaller
+
+Q_DECLARE_METATYPE(QInstaller::ComponentAlias *)
+Q_DECLARE_METATYPE(QInstaller::AliasSource);
+
+#endif // COMPONENTALIAS_H