org.dataconservancy.dcs.access.client.presenter.RelationsPresenter.java Source code

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Here is the source code for org.dataconservancy.dcs.access.client.presenter.RelationsPresenter.java

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/*
 * Copyright 2013 The Trustees of Indiana University
 *
 * 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.dataconservancy.dcs.access.client.presenter;

import com.google.gwt.http.client.URL;
import com.google.gwt.jsonp.client.JsonpRequestBuilder;
import com.google.gwt.user.cellview.client.CellTree;
import com.google.gwt.user.cellview.client.HasKeyboardSelectionPolicy.KeyboardSelectionPolicy;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.Panel;
import com.google.gwt.view.client.TreeViewModel;
import org.dataconservancy.dcs.access.client.*;
import org.dataconservancy.dcs.access.client.model.JsDcp;
import org.dataconservancy.dcs.access.client.model.JsSearchResult;

public class RelationsPresenter implements Presenter {

    public interface Display {

        Panel getContent();

        String getEntityId();

    }

    String id;
    Display display;
    Panel content;

    public RelationsPresenter(Display view) {
        this.display = view;
    }

    @Override
    public void bind() {
        content = this.display.getContent();
        id = this.display.getEntityId();
        String query = Search.createLiteralQuery("OR", SolrField.EntityField.IMM_ANCESTRY.solrName(), id,
                //            SolrField.EntityField.ANCESTRY.solrName(), id,
                SolrField.EventField.TARGET.solrName(), id, SolrField.EntityField.ID.solrName(), id,
                SolrField.RelationField.TARGET.solrName(), id);

        // content.add(new Label(query));

        collectSearchResults(query, 0, new AsyncCallback<JsDcp>() {

            public void onFailure(Throwable caught) {
                Util.reportInternalError("Doing related search", caught);
            }

            public void onSuccess(JsDcp result) {
                displayRelated(result, id);
            }
        });

    }

    static void collectSearchResults(final String query, final int offset, final AsyncCallback<JsDcp> topcb) {
        collectSearchResults(query, offset, JsDcp.create(), topcb);
    }

    static void collectSearchResults(final String query, final int offset, final JsDcp dcp,
            final AsyncCallback<JsDcp> topcb) {
        String searchurl = searchURL(query, offset, false, 50);
        JsonpRequestBuilder rb = new JsonpRequestBuilder();
        rb.requestObject(searchurl, new AsyncCallback<JsSearchResult>() {

            public void onFailure(Throwable caught) {
                topcb.onFailure(caught);
            }

            public void onSuccess(JsSearchResult result) {
                for (int i = 0; i < result.matches().length(); i++) {
                    Util.add(dcp, result.matches().get(i));
                }

                int nextoffset = offset + result.matches().length();

                if (nextoffset == result.total()) {
                    topcb.onSuccess(dcp);
                } else {
                    collectSearchResults(query, nextoffset, dcp, topcb);
                }
            }
        });
    }

    static String searchURL(String query, int offset, boolean context, int max, String... params) {
        String accessurl = SeadApp.accessurl;
        String s = accessurl + SeadApp.queryPath + "?q=" + URL.encodeQueryString(query) + "&offset=" + offset
                + "&max=" + max;

        if (context) {
            s = s + "&_hl=true&_hl.requireFieldMatch=true&_hl.fl=" + URL.encodeQueryString("*");
        }
        for (int i = 0; i < params.length; i += 2) {
            s = s + "&" + params[i] + "=" + params[i + 1];
        }
        return s;
    }

    public void displayRelated(JsDcp dcp, String id) {
        content.add(Util.label("Entity", "SectionHeader"));

        TreeViewModel treemodel = new FileTree(dcp);

        CellTree tree = new CellTree(treemodel, null);

        tree.setStylePrimaryName("RelatedView");
        tree.setAnimationEnabled(true);
        tree.setKeyboardSelectionPolicy(KeyboardSelectionPolicy.BOUND_TO_SELECTION);
        tree.setDefaultNodeSize(50);

        if (tree.getRootTreeNode().getChildCount() > 0) {
            tree.getRootTreeNode().setChildOpen(0, false);
        }

        int i = -1;//Util.find(dcp.getCollections(), id);

        if (i == -1) {
            i = Util.find(dcp.getDeliverableUnits(), id);

            if (i == -1) {
                // TODO other types...
            } else {
                content.add(dcp.getDeliverableUnits().get(i).display(tree, true));
            }
        } else {
            content.add(dcp.getCollections().get(i).display());
        }
    }

    @Override
    public void display(Panel mainContainer, Panel facetContent, Panel headerPanel, Panel logoutPanel,
            Panel notificationPanel) {
        mainContainer.clear();
        facetContent.clear();
        bind();
        mainContainer.add(content);

    }

}