BOAdapter.java

/*
 * (C) Copyright 2013 Nuxeo SA (http://nuxeo.com/) and others.
 *
 * 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.
 *
 * Contributors:
 *     dmetzler
 */
package org.nuxeo.ecm.restapi.server.jaxrs.adapters;

import java.util.ArrayList;
import java.util.List;

import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.GenericEntity;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;

import org.nuxeo.ecm.automation.core.operations.business.adapter.BusinessAdapter;
import org.nuxeo.ecm.automation.core.util.Paginable;
import org.nuxeo.ecm.automation.io.services.codec.ObjectCodec;
import org.nuxeo.ecm.automation.io.services.codec.ObjectCodecService;
import org.nuxeo.ecm.automation.jaxrs.DefaultJsonAdapter;
import org.nuxeo.ecm.automation.jaxrs.io.documents.PaginableWithDelegate;
import org.nuxeo.ecm.core.api.CoreSession;
import org.nuxeo.ecm.core.api.DocumentModel;
import org.nuxeo.ecm.core.api.DocumentModelList;
import org.nuxeo.ecm.core.rest.DocumentObject;
import org.nuxeo.ecm.webengine.WebException;
import org.nuxeo.ecm.webengine.model.WebAdapter;
import org.nuxeo.ecm.webengine.model.impl.DefaultAdapter;
import org.nuxeo.runtime.api.Framework;

/**
 * Basic CRUD with a BusinessAdapter
 *
 * @since 5.7.2
 */
@WebAdapter(name = BOAdapter.NAME, type = "BOService", targetType = "Document")
@Produces({ "application/json+nxentity", "application/json+esentity", "application/json" })
public class BOAdapter extends DefaultAdapter {

    public static final String NAME = "bo";

    @GET
    @Path("{adapterName}")
    public Object doGetAdapter(@PathParam("adapterName") String adapterName) {
        DocumentModel doc = getTarget().getAdapter(DocumentModel.class);
        if (doc != null) {
            BusinessAdapter adapter = getAdapter(adapterName, doc);
            return new DefaultJsonAdapter(adapter);
        }

        DocumentModelList list = getTarget().getAdapter(DocumentModelList.class);
        if (list != null) {
            return doGetAdapterOnList(list, adapterName);
        }

        return Response.status(Status.BAD_REQUEST).entity("Adapter can only be executed on Document or DocumentList").build();

    }

    /**
     * @param list
     * @param adapterName
     * @return
     * @since 5.8
     */
    @SuppressWarnings({ "unchecked", "rawtypes" })
    private Object doGetAdapterOnList(DocumentModelList list, String adapterName) {

        List<BusinessAdapter> adapters;
        if (list instanceof Paginable) {
            adapters = new PaginableWithDelegate((Paginable<DocumentModel>) list);
        } else {
            adapters = new ArrayList<BusinessAdapter>();
        }

        for (DocumentModel docItem : list) {
            adapters.add(getAdapter(adapterName, docItem));
        }
        GenericEntity<List<BusinessAdapter>> entity = new GenericEntity<List<BusinessAdapter>>(adapters) {
        };
        return entity;
    }

    @PUT
    @Path("{adapterName}")
    @Consumes({ "application/json+nxentity", "application/json" })
    public Object doPostAdapter(@PathParam("adapterName") String adapterName, BusinessAdapter input) {
        ctx.getCoreSession().saveDocument(input.getDocument());

        ctx.getCoreSession().save();

        return new DefaultJsonAdapter(input);
    }

    @POST
    @Path("{adapterName}/{docName}")
    public Object doPutAdapter(@PathParam("adapterName") String adapterName, @PathParam("docName") String docName,
            BusinessAdapter input) {
        DocumentModel document = input.getDocument();

        DocumentObject dobj = (DocumentObject) getTarget();
        DocumentModel parentDoc = dobj.getDocument();

        document.setPathInfo(parentDoc.getPathAsString(), docName);
        CoreSession session = ctx.getCoreSession();
        document = session.createDocument(document);
        session.save();
        BusinessAdapter adapter = document.getAdapter(input.getClass());
        return new DefaultJsonAdapter(adapter);
    }

    private BusinessAdapter getAdapter(String adapterName, DocumentModel doc) {
        ObjectCodecService cs = Framework.getLocalService(ObjectCodecService.class);
        ObjectCodec<?> codec = cs.getCodec(adapterName);
        if (codec != null) {
            return (BusinessAdapter) doc.getAdapter(codec.getJavaType());
        } else {
            throw new WebException(String.format("Unable to find [%s] adapter", adapterName));
        }

    }

}