<commit_before>package com.github.hypfvieh.bluetooth.wrapper;

import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;

import org.apache.commons.lang3.ClassUtils;
import org.freedesktop.dbus.connections.impl.DBusConnection;
import org.freedesktop.dbus.exceptions.DBusException;
import org.freedesktop.dbus.exceptions.DBusExecutionException;
import org.freedesktop.dbus.interfaces.DBusInterface;
import org.freedesktop.dbus.interfaces.Properties;
import org.freedesktop.dbus.types.Variant;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.github.hypfvieh.DbusHelper;

/**
 * Base class of all bluetooth wrapper object classes.
 *
 * @author hypfvieh
 *
 */
public abstract class AbstractBluetoothObject {

    private final Logger logger = LoggerFactory.getLogger(getClass());

    private final BluetoothDeviceType bluetoothType;
    private DBusConnection dbusConnection;
    private final String dbusPath;

    public AbstractBluetoothObject(BluetoothDeviceType _bluetoothType, DBusConnection _dbusConnection, String _dbusPath) {
        bluetoothType = _bluetoothType;
        dbusConnection = _dbusConnection;
        dbusPath = _dbusPath;
    }

    /**
     * DBus-Interface class used in this wrapper object.
     * @return class which implements the interface
     */
    protected abstract Class<? extends DBusInterface> getInterfaceClass();

    public BluetoothDeviceType getBluetoothType() {
        return bluetoothType;
    }

    public String getDbusPath() {
        return dbusPath;
    }

    protected DBusConnection getDbusConnection() {
        return dbusConnection;
    }

    /**
     * Helper to get remote objects from DBus.
     * @param _objectNames Set of object names to retrieve [e.g service0000, service0001]
     * @param _parentPath DBus parent path (objectName will be appended) [e.g. /org/bluez/hci0]
     * @param _type Expected DBusInterface type [e.g. Device1]
     * @param <T> class/interface extending {@link DBusInterface}
     * @return Map of string key and the given interface
     */
    protected <T extends DBusInterface> Map<String, T> getRemoteObjects(Set<String> _objectNames, String _parentPath, Class<T> _type) {
        Map<String, T> map = new LinkedHashMap<>();
        String path = _parentPath;
        // append slash to parent path if missing
        if (!_parentPath.endsWith("/")) {
            path += "/";
        }
        // iterate all object names
        for (String string : _objectNames) {
            T remoteObject = DbusHelper.getRemoteObject(getDbusConnection(), path + string, _type);
            map.put(path + string, remoteObject);
        }
        return map;
    }

    /**
     * Helper to get a value of a DBus property.
     * @param _field DBus property key<commit_msg>Changed AbstractBluetoothObject#getDbusConnection() from protected to public.<commit_after>package com.github.hypfvieh.bluetooth.wrapper;

import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;

import org.apache.commons.lang3.ClassUtils;
import org.freedesktop.dbus.connections.impl.DBusConnection;
import org.freedesktop.dbus.exceptions.DBusException;
import org.freedesktop.dbus.exceptions.DBusExecutionException;
import org.freedesktop.dbus.interfaces.DBusInterface;
import org.freedesktop.dbus.interfaces.Properties;
import org.freedesktop.dbus.types.Variant;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.github.hypfvieh.DbusHelper;

/**
 * Base class of all bluetooth wrapper object classes.
 *
 * @author hypfvieh
 *
 */
public abstract class AbstractBluetoothObject {

    private final Logger logger = LoggerFactory.getLogger(getClass());

    private final BluetoothDeviceType bluetoothType;
    private DBusConnection dbusConnection;
    private final String dbusPath;

    public AbstractBluetoothObject(BluetoothDeviceType _bluetoothType, DBusConnection _dbusConnection, String _dbusPath) {
        bluetoothType = _bluetoothType;
        dbusConnection = _dbusConnection;
        dbusPath = _dbusPath;
    }

    /**
     * DBus-Interface class used in this wrapper object.
     * @return class which implements the interface
     */
    protected abstract Class<? extends DBusInterface> getInterfaceClass();

    public BluetoothDeviceType getBluetoothType() {
        return bluetoothType;
    }

    public String getDbusPath() {
        return dbusPath;
    }

    public DBusConnection getDbusConnection() {
        return dbusConnection;
    }

    /**
     * Helper to get remote objects from DBus.
     * @param _objectNames Set of object names to retrieve [e.g service0000, service0001]
     * @param _parentPath DBus parent path (objectName will be appended) [e.g. /org/bluez/hci0]
     * @param _type Expected DBusInterface type [e.g. Device1]
     * @param <T> class/interface extending {@link DBusInterface}
     * @return Map of string key and the given interface
     */
    protected <T extends DBusInterface> Map<String, T> getRemoteObjects(Set<String> _objectNames, String _parentPath, Class<T> _type) {
        Map<String, T> map = new LinkedHashMap<>();
        String path = _parentPath;
        // append slash to parent path if missing
        if (!_parentPath.endsWith("/")) {
            path += "/";
        }
        // iterate all object names
        for (String string : _objectNames) {
            T remoteObject = DbusHelper.getRemoteObject(getDbusConnection(), path + string, _type);
            map.put(path + string, remoteObject);
        }
        return map;
    }

    /**
     * Helper to get a value of a DBus property.
     * @param _field DBus property key
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