co.cask.cdap.etl.mock.spark.Window.java Source code

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Here is the source code for co.cask.cdap.etl.mock.spark.Window.java

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/*
 * Copyright  2016 Cask Data, Inc.
 *
 * 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 co.cask.cdap.etl.mock.spark;

import co.cask.cdap.api.plugin.PluginClass;
import co.cask.cdap.api.plugin.PluginPropertyField;
import co.cask.cdap.etl.api.streaming.Windower;
import co.cask.cdap.etl.proto.v2.ETLPlugin;
import com.google.common.collect.ImmutableMap;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

/**
 * Window plugin.
 */
public class Window extends Windower {
    public static final PluginClass PLUGIN_CLASS = getPluginClass();
    private final Conf conf;

    public Window(Conf conf) {
        this.conf = conf;
    }

    @Override
    public long getWidth() {
        return conf.width;
    }

    @Override
    public long getSlideInterval() {
        return conf.slideInterval;
    }

    /**
     * Config for window plugin.
     */
    public static class Conf {
        long width;

        long slideInterval;
    }

    public static ETLPlugin getPlugin(long width, long slideInterval) throws IOException {
        return new ETLPlugin("Window", Windower.PLUGIN_TYPE,
                ImmutableMap.of("width", String.valueOf(width), "slideInterval", String.valueOf(slideInterval)),
                null);
    }

    private static PluginClass getPluginClass() {
        Map<String, PluginPropertyField> properties = new HashMap<>();
        properties.put("width", new PluginPropertyField("width", "", "long", true, false));
        properties.put("slideInterval", new PluginPropertyField("slideInterval", "", "long", true, false));
        return new PluginClass(Windower.PLUGIN_TYPE, "Window", "", Window.class.getName(), "conf", properties);
    }
}