NdkExportAction.java

/*
 * Copyright (C) 2014 Jan Pokorsky
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package cz.cas.lib.proarc.webapp.client.action;

import com.smartgwt.client.data.DSCallback;
import com.smartgwt.client.data.DSRequest;
import com.smartgwt.client.data.DSResponse;
import com.smartgwt.client.data.DataSource;
import com.smartgwt.client.data.Record;
import com.smartgwt.client.data.RecordList;
import com.smartgwt.client.types.PromptStyle;
import com.smartgwt.client.util.SC;
import cz.cas.lib.proarc.webapp.client.ClientMessages;
import cz.cas.lib.proarc.webapp.client.ClientUtils;
import cz.cas.lib.proarc.webapp.client.action.DesaExportAction.ExportResultWidget;
import cz.cas.lib.proarc.webapp.client.ds.DigitalObjectDataSource.DigitalObject;
import cz.cas.lib.proarc.webapp.client.ds.ExportDataSource;
import cz.cas.lib.proarc.webapp.client.ds.RestConfig;
import cz.cas.lib.proarc.webapp.shared.rest.ExportResourceApi;

/**
 * The NDK PSP export action.
 *
 * @author Jan Pokorsky
 */
public class NdkExportAction extends AbstractAction {
    private final ClientMessages i18n;

    public NdkExportAction(ClientMessages i18n) {
        this(i18n, i18n.NdkExportAction_Title(), null, i18n.NdkExportAction_Hint());
    }
    public NdkExportAction(ClientMessages i18n, String title, String icon, String tooltip) {
        super(title, icon, tooltip);
        this.i18n = i18n;
    }

    @Override
    public boolean accept(ActionEvent event) {
        Object[] selection = Actions.getSelection(event);
        boolean accept = false;
        if (selection != null && selection instanceof Record[]) {
            Record[] records = (Record[]) selection;
            accept = acceptNdk(records);
        }
        return accept;
    }

    @Override
    public void performAction(ActionEvent event) {
        Record[] records = Actions.getSelection(event);
        String[] pids = ClientUtils.toFieldValues(records, ExportResourceApi.NDK_PID_PARAM);
        askForExportOptions(pids);
    }

    private boolean acceptNdk(Record[] records) {
        boolean accept = false;
        for (Record record : records) {
            DigitalObject dobj = DigitalObject.createOrNull(record);
            if (dobj != null) {
//                MetaModelRecord model = dobj.getModel();
//                String metadataFormat = model.getMetadataFormat();
                String modelId = dobj.getModelId();
                // XXX hack; it needs support to query model/object for action availability
                if (modelId != null && modelId.startsWith("model:ndk")) {
                    accept = true;
                    continue;
                }
            }
            accept = false;
            break;
        }
        return accept;
    }

    private void askForExportOptions(String[] pids) {
        if (pids == null || pids.length == 0) {
            return ;
        }
        Record export = new Record();
        export.setAttribute(ExportResourceApi.NDK_PID_PARAM, pids);
//        ExportOptionsWidget.showOptions(export, new Callback<Record, Void>() {
//
//            @Override
//            public void onFailure(Void reason) {
//                // no-op
//            }
//
//            @Override
//            public void onSuccess(Record result) {
//                exportOrValidate(result);
//            }
//        });
        exportOrValidate(export);
    }

    private void exportOrValidate(final Record export) {
        DSRequest dsRequest = new DSRequest();
        dsRequest.setPromptStyle(PromptStyle.DIALOG);
        dsRequest.setPrompt(i18n.KrameriusExportAction_Add_Msg());
        DataSource ds = ExportDataSource.getNdk();
        ds.addData(export, new DSCallback() {

            @Override
            public void execute(DSResponse response, Object rawData, DSRequest request) {
                if (RestConfig.isStatusOk(response)) {
                    Record[] data = response.getData();
                    RecordList erl = errorsFromExportResult(data);
                    if (erl.isEmpty()) {
                        String dryRun = export.getAttribute(ExportResourceApi.DESA_DRYRUN_PARAM);
                        SC.say(dryRun == null
                                ? i18n.NdkExportAction_ExportDone_Msg()
                                : i18n.DesaExportAction_ValidationDone_Msg());
                    } else {
                        ExportResultWidget.showErrors(erl.toArray());
                    }
                }
            }
        }, dsRequest);
    }

    private RecordList errorsFromExportResult(Record[] exportResults) {
        RecordList recordList = new RecordList();
        for (Record result : exportResults) {
            Record[] errors = result.getAttributeAsRecordArray(ExportResourceApi.RESULT_ERRORS);
            if (errors != null && errors.length > 0) {
                recordList.addList(errors);
            }
        }
        return recordList;
    }

}