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/*
 * #%L
 * %%
 * Copyright (C) 2011 - 2017 BMW Car IT GmbH
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */
package io.joynr.messaging.websocket;

import java.util.HashSet;
import java.util.Set;

import com.google.inject.Inject;
import com.google.inject.name.Named;

import io.joynr.messaging.routing.MulticastAddressCalculator;
import io.joynr.runtime.SystemServicesSettings;
import joynr.ImmutableMessage;
import joynr.system.RoutingTypes.Address;
import joynr.system.RoutingTypes.WebSocketAddress;

public class WebSocketMulticastAddressCalculator implements MulticastAddressCalculator {

    private WebSocketAddress globalAddress;

    @Inject
    public WebSocketMulticastAddressCalculator(@Named(SystemServicesSettings.PROPERTY_CC_MESSAGING_ADDRESS) Address globalAddress) {
        if (globalAddress instanceof WebSocketAddress) {
            this.globalAddress = (WebSocketAddress) globalAddress;
        }
    }

    @Override
    public Set calculate(ImmutableMessage message) {
        Set resultSet = new HashSet<>();
        if (globalAddress != null) {
            resultSet.add(globalAddress);
        }
        return resultSet;
    }

    @Override
    public boolean supports(String transport) {
        return transport != null && transport.toLowerCase().contains("websocket");
    }

    @Override
    public boolean createsGlobalTransportAddresses() {
        return false;
    }
}