tools/servicefw/servicefw.cpp
changeset 0 876b1a06bc25
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/servicefw/servicefw.cpp	Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,336 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <stdio.h>
+
+#include <QtCore>
+#include <QTextStream>
+#include <qservicemanager.h>
+#include <QString>
+
+QT_USE_NAMESPACE
+
+QTM_USE_NAMESPACE
+
+class CommandProcessor : public QObject
+{
+    Q_OBJECT
+
+public:
+    CommandProcessor(QObject *parent = 0);
+    ~CommandProcessor();
+
+    void execute(const QStringList &options, const QString &cmd, const QStringList &args);
+    void showUsage();
+    static void showUsage(QTextStream *stream);
+
+public slots:
+    void browse(const QStringList &args);
+    void search(const QStringList &args);
+    void add(const QStringList &args);
+    void remove(const QStringList &args);
+
+private:
+    bool setOptions(const QStringList &options);
+    void showAllEntries();
+    void showInterfaceInfo(const QServiceFilter &filter);
+    void showServiceInfo(const QString &service);
+
+    QServiceManager *serviceManager;
+    QTextStream *stdoutStream;
+};
+
+CommandProcessor::CommandProcessor(QObject *parent)
+    : QObject(parent),
+      serviceManager(0),
+      stdoutStream(new QTextStream(stdout))
+{
+}
+
+CommandProcessor::~CommandProcessor()
+{
+    delete stdoutStream;
+}
+
+void CommandProcessor::execute(const QStringList &options, const QString &cmd, const QStringList &args)
+{
+    if (cmd.isEmpty()) {
+        *stdoutStream << "Error: no command given\n\n";
+        showUsage();
+        return;
+    }
+
+    if (!setOptions(options))
+        return;
+
+    int methodIndex = metaObject()->indexOfMethod(cmd.toAscii() + "(QStringList)");
+    if (methodIndex < 0) {
+        *stdoutStream << "Bad command: " << cmd << "\n\n";
+        showUsage();
+        return;
+    }
+
+    if (!metaObject()->method(methodIndex).invoke(this, Q_ARG(QStringList, args)))
+        *stdoutStream << "Cannot invoke method for command:" << cmd << '\n';
+}
+
+void CommandProcessor::showUsage()
+{
+    showUsage(stdoutStream);
+}
+
+void CommandProcessor::showUsage(QTextStream *stream)
+{
+    *stream << "Usage: servicefw [options] <command> [command parameters]\n\n"
+            "Commands:\n"
+            "\tbrowse     List all registered services\n"
+            "\tsearch     Search for a service or interface\n"
+            "\tadd        Register a service\n"
+            "\tremove     Unregister a service\n"
+            "\n"
+            "Options:\n"
+            "\t--system   Use the system-wide services database instead of the\n"
+            "\t           user-specific database\n"
+            "\n";
+}
+
+void CommandProcessor::browse(const QStringList &args)
+{
+    Q_UNUSED(args);
+    showAllEntries();
+}
+
+void CommandProcessor::search(const QStringList &args)
+{
+    if (args.isEmpty()) {
+        *stdoutStream << "Usage:\n\tsearch <service|interface [version]>\n\n"
+                "Examples:\n"
+                "\tsearch SomeService\n"
+                "\tsearch com.nokia.SomeInterface\n"
+                "\tsearch com.nokia.SomeInterface 3.5\n"
+                "\tsearch com.nokia.SomeInterface 3.5+\n";
+        return;
+    }
+
+    const QString &name = args[0];
+    if (name.contains('.')) {
+        QServiceFilter filter;
+        if (args.count() > 1) {
+            const QString &version = args[1];
+            bool minimumMatch = version.endsWith('+');
+            filter.setInterface(name,
+                    minimumMatch ? (version.mid(0, version.length()-1)) : version,
+                    minimumMatch ? QServiceFilter::MinimumVersionMatch : QServiceFilter::ExactVersionMatch);
+            if (filter.interfaceName().isEmpty()) { // setInterface() failed
+                *stdoutStream << "Error: invalid interface version: " << version << '\n';
+                return;
+            }
+        } else {
+            filter.setInterface(name);
+        }
+        showInterfaceInfo(filter);
+    } else {
+        showServiceInfo(name);
+    }
+}
+
+static const char * const errorTable[] = {
+    "No error", //0
+    "Storage read error",
+    "Invalid service location",
+    "Invalid service xml",
+    "Invalid service interface descriptor",
+    "Service already exists",
+    "Interface implementation already exists",
+    "Loading of plug-in failed",
+    "Service or interface not found",
+    "Insufficient capabilities to access service",
+    "Unknown error"
+};
+
+void CommandProcessor::add(const QStringList &args)
+{
+    if (args.isEmpty()) {
+        *stdoutStream << "Usage:\n\tadd <service-xml-file>\n";
+        return;
+    }
+
+    const QString &xmlPath = args[0];
+    if (!QFile::exists(xmlPath)) {
+        *stdoutStream << "Error: cannot find file " << xmlPath << '\n';
+        return;
+    }
+
+    if (serviceManager->addService(xmlPath)) {
+        *stdoutStream << "Registered service at " << xmlPath << '\n';
+    } else {
+        int error = serviceManager->error();
+        if (error > 11) //map anything larger than 11 to 11
+            error = 11;
+        *stdoutStream << "Error: cannot register service at " << xmlPath
+                << " (" << errorTable[error] << ")" << '\n';
+    }
+}
+
+void CommandProcessor::remove(const QStringList &args)
+{
+    if (args.isEmpty()) {
+        *stdoutStream << "Usage:\n\tremove <service-name>\n";
+        return;
+    }
+
+    const QString &service = args[0];
+    if (serviceManager->removeService(service))
+        *stdoutStream << "Unregistered service " << service << '\n';
+    else
+        *stdoutStream << "Error: cannot unregister service " << service << '\n';
+}
+
+bool CommandProcessor::setOptions(const QStringList &options)
+{
+    if (serviceManager)
+        delete serviceManager;
+
+    QStringList opts = options;
+    QMutableListIterator<QString> i(opts);
+    while (i.hasNext()) {
+        if (i.next() == "--system") {
+            serviceManager = new QServiceManager(QService::SystemScope, this);
+            i.remove();
+        }
+    }
+
+    if (!opts.isEmpty()) {
+        *stdoutStream << "Bad options: " << opts.join(" ") << "\n\n";
+        showUsage();
+        return false;
+    }
+
+    // other initialization, if not triggered by an option
+    if (!serviceManager)
+        serviceManager = new QServiceManager(this);
+
+    return true;
+}
+
+void CommandProcessor::showAllEntries()
+{
+    QStringList services = serviceManager->findServices();
+    if (services.isEmpty())
+        *stdoutStream << "No services found.\n";
+    else if (services.count() == 1)
+        *stdoutStream << "Found 1 service.\n\n";
+    else
+        *stdoutStream << "Found " << services.count() << " services.\n\n";
+    foreach (const QString &service, services)
+        showServiceInfo(service);
+}
+
+void CommandProcessor::showInterfaceInfo(const QServiceFilter &filter)
+{
+    QString interface = filter.interfaceName();
+    if (filter.majorVersion() >= 0 && filter.minorVersion() >= 0) {
+        interface += QString(" %1.%2").arg(filter.majorVersion()).arg(filter.minorVersion());
+        if (filter.versionMatchRule() == QServiceFilter::MinimumVersionMatch)
+            interface += '+';
+    }
+
+    QList<QServiceInterfaceDescriptor> descriptors = serviceManager->findInterfaces(filter);
+    if (descriptors.isEmpty()) {
+        *stdoutStream << "Interface " << interface << " not found.\n";
+        return;
+    }
+
+    *stdoutStream << interface << " is implemented by:\n";
+    foreach (const QServiceInterfaceDescriptor &desc, descriptors)
+        *stdoutStream << '\t' << desc.serviceName() << '\n';
+}
+
+void CommandProcessor::showServiceInfo(const QString &service)
+{
+    QList<QServiceInterfaceDescriptor> descriptors = serviceManager->findInterfaces(service);
+    if (descriptors.isEmpty()) {
+        *stdoutStream << "Service " << service << " not found.\n";
+        return;
+    }
+
+    QString description = descriptors[0].attribute(
+            QServiceInterfaceDescriptor::ServiceDescription).toString();
+    QStringList capabilities = descriptors[0].attribute(
+            QServiceInterfaceDescriptor::Capabilities).toStringList();
+
+    *stdoutStream << service << ":\n";
+    if (!description.isEmpty())
+        *stdoutStream << '\t' << description << '\n';
+    *stdoutStream << "\tLibrary: " << descriptors[0].attribute(
+                    QServiceInterfaceDescriptor::Location).toString() << '\n'
+            << "\tCapabilities: " << (capabilities.isEmpty() ? "" : capabilities.join(", ")) << '\n'
+            << "\tImplements:\n";
+
+    foreach (const QServiceInterfaceDescriptor &desc, descriptors) {
+        *stdoutStream << "\t\t" << desc.interfaceName() << ' '
+                << desc.majorVersion() << '.' << desc.minorVersion() << '\n';
+    }
+}
+
+int main(int argc, char *argv[])
+{
+    QCoreApplication app(argc, argv);
+    QStringList args = QCoreApplication::arguments();
+
+    if (args.count() == 1 || args.value(1) == "--help" || args.value(1) == "-h") {
+        QTextStream stream(stdout);
+        CommandProcessor::showUsage(&stream);
+        return 0;
+    }
+
+    QStringList options;
+    for (int i=1; i<args.count(); i++) {
+        if (args[i].startsWith("--"))
+            options += args[i];
+    }
+
+    CommandProcessor processor;
+    processor.execute(options, args.value(options.count() + 1), args.mid(options.count() + 2));
+    return 0;
+}
+
+#include "servicefw.moc"