/**
 * Copyright 2007-2016, Kaazing Corporation. All rights reserved.
 *
 * 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.
 */
package org.kaazing.gateway.transport.ws.bridge.extensions.idletimeout;

import org.apache.mina.core.filterchain.IoFilter;
import org.kaazing.gateway.transport.ws.extension.ExtensionHeader;
import org.kaazing.gateway.transport.ws.extension.ExtensionHeaderBuilder;
import org.kaazing.gateway.transport.ws.extension.ExtensionHelper;
import org.kaazing.gateway.transport.ws.extension.ExtensionParameterBuilder;
import org.kaazing.gateway.transport.ws.extension.WebSocketExtension;

public final class IdleTimeoutExtension extends WebSocketExtension  {
    static final String EXTENSION_TOKEN = "x-kaazing-idle-timeout";
    private static final String IDLE_TIMEOUT_TIMEOUT_PARAM = "timeout";
    private final long idleTimeoutMillis;
    private final ExtensionHeader extension;

    public IdleTimeoutExtension(ExtensionHeader extension, ExtensionHelper extensionHelper, long idleTimeoutMillis) {
        super(extensionHelper);
        this.idleTimeoutMillis = idleTimeoutMillis;
        this.extension = new ExtensionHeaderBuilder(extension).append(
                new ExtensionParameterBuilder(IDLE_TIMEOUT_TIMEOUT_PARAM, Long.toString(idleTimeoutMillis)))
                .done();
    }

    @Override
    public ExtensionHeader getExtensionHeader() {
        return extension;
    }

    @Override
    public IoFilter getFilter() {
        return new IdleTimeoutFilter(idleTimeoutMillis);
    }

}
