io.mapzone.arena.share.content.ArenaContentProvider.java Source code

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Here is the source code for io.mapzone.arena.share.content.ArenaContentProvider.java

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/*
 * polymap.org Copyright (C) 2016, the @authors. All rights reserved.
 *
 * This is free software; you can redistribute it and/or modify it under the terms of
 * the GNU Lesser General Public License as published by the Free Software
 * Foundation; either version 3.0 of the License, or (at your option) any later
 * version.
 *
 * This software is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
 */
package io.mapzone.arena.share.content;

import java.util.StringJoiner;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;

import org.apache.commons.lang3.StringUtils;

import com.vividsolutions.jts.geom.Envelope;

import io.mapzone.arena.ArenaPlugin;
import io.mapzone.arena.share.ShareInfoServlet;
import io.mapzone.arena.share.ShareServletsStarter;
import io.mapzone.arena.share.ui.ShareContext;
import io.mapzone.arena.share.ui.ShareContext.SelectionDescriptor;

/**
 * Creates an url to the arena client.
 *
 * @author Steffen Stundzig
 */
public class ArenaContentProvider implements ShareableContentProvider {

    public class ArenaContent implements ShareableContent {

        public String arena;

        public String shareInfo;

    }

    public final static String MIMETYPE = "application/arena";

    private ShareContext context;

    @Override
    public ArenaContent get() {
        StringJoiner layers = new StringJoiner(",");
        for (SelectionDescriptor selection : context.selectionDescriptors.get()) {
            layers.add(selection.layer.get().label.get());
            // FIXME, if multilayers are working, remove this break!!!
            break;
        }

        Envelope envelope = context.boundingBox.get();
        StringJoiner extent = new StringJoiner(",");
        extent.add(String.valueOf((int) envelope.getMinX()));
        extent.add(String.valueOf((int) envelope.getMinY()));
        extent.add(String.valueOf((int) envelope.getMaxX()));
        extent.add(String.valueOf((int) envelope.getMaxY()));

        StringBuffer shareInfo = new StringBuffer(ArenaPlugin.instance().config().getProxyUrl());
        shareInfo.append(ShareServletsStarter.ALIAS_SHAREINFO).append("?");
        try {
            shareInfo.append(ShareInfoServlet.PARAMETER_LAYERS).append("=")
                    .append(URLEncoder.encode(layers.toString(), "utf-8"));
            shareInfo.append("&").append(ShareInfoServlet.PARAMETER_BBOX).append("=")
                    .append(URLEncoder.encode(extent.toString(), "utf-8"));
            if (!StringUtils.isBlank(ArenaPlugin.instance().config().getServiceAuthToken())) {
                shareInfo.append("&").append(ShareInfoServlet.PARAMETER_AUTHTOKEN).append("=")
                        .append(URLEncoder.encode(ArenaPlugin.instance().config().getServiceAuthToken(), "utf-8"));
            }
        } catch (UnsupportedEncodingException e) {
            throw new RuntimeException(e);
        }

        ArenaContent content = new ArenaContent();
        content.arena = ArenaPlugin.instance().config().getProxyUrl() + ArenaPlugin.ALIAS;
        content.shareInfo = shareInfo.toString();
        return content;
    }

    @Override
    public boolean supports(final String mimeType, @SuppressWarnings("hiding") final ShareContext context) {
        this.context = context;
        return MIMETYPE.equals(mimeType);
    }
}