de.metas.ui.web.handlingunits.HUEditorProcessTemplate.java Source code

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Here is the source code for de.metas.ui.web.handlingunits.HUEditorProcessTemplate.java

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package de.metas.ui.web.handlingunits;

import java.util.stream.Stream;

import org.adempiere.ad.dao.IQueryBL;

import com.google.common.base.Predicates;

import de.metas.handlingunits.HuId;
import de.metas.handlingunits.model.I_M_HU;
import de.metas.ui.web.handlingunits.HUEditorRowFilter.Select;
import de.metas.ui.web.process.adprocess.ViewBasedProcessTemplate;
import de.metas.ui.web.window.datatypes.DocumentIdsSelection;
import de.metas.util.Services;
import de.metas.util.stream.StreamUtils;
import lombok.NonNull;

/*
 * #%L
 * metasfresh-webui-api
 * %%
 * Copyright (C) 2017 metas GmbH
 * %%
 * 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 2 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/gpl-2.0.html>.
 * #L%
 */

/**
 * A {@link ViewBasedProcessTemplate} implementation template which add convenient functionalities around {@link HUEditorView}.
 *
 * @author metas-dev <dev@metasfresh.com>
 *
 */
public abstract class HUEditorProcessTemplate extends ViewBasedProcessTemplate {
    protected final boolean isHUEditorView() {
        return isViewClass(HUEditorView.class);
    }

    @Override
    protected final HUEditorView getView() {
        return super.getView(HUEditorView.class);
    }

    @Override
    protected final HUEditorRow getSingleSelectedRow() {
        return HUEditorRow.cast(super.getSingleSelectedRow());
    }

    protected final Stream<HUEditorRow> streamSelectedRows(@NonNull final HUEditorRowFilter filter) {
        final DocumentIdsSelection selectedDocumentIds = getSelectedRowIds();
        if (selectedDocumentIds.isEmpty()) {
            return Stream.empty();
        }

        return getView().streamByIds(filter.andOnlyRowIds(selectedDocumentIds));
    }

    protected final Stream<HuId> streamSelectedHUIds(@NonNull final Select select) {
        return streamSelectedHUIds(HUEditorRowFilter.select(select));
    }

    protected final Stream<HuId> streamSelectedHUIds(@NonNull final HUEditorRowFilter filter) {
        return streamSelectedRows(filter).map(HUEditorRow::getHuId).filter(Predicates.notNull());
    }

    /**
     * Gets <b>all</b> selected {@link HUEditorRow}s and loads the top level-HUs from those.
     * I.e. this method does not rely on {@link HUEditorRow#isTopLevel()}, but checks the underlying HU.
     *
     * @param select
     * @return
     */
    protected final Stream<I_M_HU> streamSelectedHUs(@NonNull final Select select) {
        return streamSelectedHUs(HUEditorRowFilter.select(select));
    }

    protected final Stream<I_M_HU> streamSelectedHUs(@NonNull final HUEditorRowFilter filter) {
        final Stream<HuId> huIds = streamSelectedHUIds(filter);
        return StreamUtils.dice(huIds, 100)
                .flatMap(huIdsChunk -> Services.get(IQueryBL.class).createQueryBuilder(I_M_HU.class)
                        .addInArrayFilter(I_M_HU.COLUMNNAME_M_HU_ID, huIdsChunk).create().stream(I_M_HU.class));
    }
}