001/*
002 * (C) Copyright 2011 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Anahide Tchertchian
018 */
019package org.nuxeo.ecm.platform.contentview.seam;
020
021import static org.jboss.seam.ScopeType.EVENT;
022
023import java.io.IOException;
024import java.io.Serializable;
025import java.util.ArrayList;
026import java.util.List;
027
028import org.jboss.seam.annotations.In;
029import org.jboss.seam.annotations.Name;
030import org.jboss.seam.annotations.Scope;
031import org.nuxeo.ecm.core.api.SortInfo;
032import org.nuxeo.ecm.platform.contentview.jsf.ContentView;
033import org.nuxeo.ecm.platform.contentview.jsf.ContentViewService;
034import org.nuxeo.ecm.platform.contentview.jsf.ContentViewState;
035import org.nuxeo.ecm.platform.contentview.jsf.ContentViewStateImpl;
036import org.nuxeo.ecm.platform.contentview.json.JSONContentViewState;
037
038/**
039 * Restful actions for save and restore of a content view
040 *
041 * @since 5.4.2
042 */
043@Name("contentViewRestActions")
044@Scope(EVENT)
045public class ContentViewRestActions implements Serializable {
046
047    private static final long serialVersionUID = 1L;
048
049    @In(create = true)
050    protected ContentViewService contentViewService;
051
052    public String getContentViewState(ContentView contentView) throws IOException {
053        ContentViewState state = contentViewService.saveContentView(contentView);
054        if (state != null) {
055            return JSONContentViewState.toJSON(state, true);
056        }
057        return null;
058    }
059
060    public ContentView restoreContentView(String contentViewName, Long currentPage, Long pageSize,
061            List<SortInfo> sortInfos, String jsonContentViewState) throws IOException {
062        ContentViewState state = null;
063        if (jsonContentViewState != null && jsonContentViewState.trim().length() != 0) {
064            state = JSONContentViewState.fromJSON(jsonContentViewState, true);
065        } else if (contentViewName != null) {
066            // restore only from name
067            state = new ContentViewStateImpl();
068            state.setContentViewName(contentViewName);
069        }
070        if (state != null) {
071            // apply current page and page size when set
072            if (currentPage != null && currentPage.longValue() != -1) {
073                state.setCurrentPage(currentPage);
074            }
075            if (pageSize != null && pageSize.longValue() != -1) {
076                state.setPageSize(pageSize);
077            }
078            if (sortInfos != null) {
079                state.setSortInfos(sortInfos);
080            }
081        }
082        return contentViewService.restoreContentView(state);
083    }
084
085    public List<SortInfo> getSortInfos(String sortColumn, boolean ascending) {
086        List<SortInfo> sortInfos = new ArrayList<SortInfo>();
087        sortInfos.add(new SortInfo(sortColumn, ascending));
088        return sortInfos;
089    }
090
091}