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   1 /**
   2  *  This document is a part of the source code and related artifacts
   3  *  for CollectionSpace, an open source collections management system
   4  *  for museums and related institutions:
   5
   6  *  http://www.collectionspace.org
   7  *  http://wiki.collectionspace.org
   8
   9  *  Copyright 2009 University of California at Berkeley
  10
  11  *  Licensed under the Educational Community License (ECL), Version 2.0.
  12  *  You may not use this file except in compliance with this License.
  13
  14  *  You may obtain a copy of the ECL 2.0 License at
  15
  16  *  https://source.collectionspace.org/collection-space/LICENSE.txt
  17
  18  *  Unless required by applicable law or agreed to in writing, software
  19  *  distributed under the License is distributed on an "AS IS" BASIS,
  20  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  21  *  See the License for the specific language governing permissions and
  22  *  limitations under the License.
  23  */
  24 package org.collectionspace.services.nuxeo.client.java;
  25
  26 import java.io.InputStream;
  27 import java.util.HashMap;
  28 import java.util.List;
  29 import java.util.Map;
  30 import java.util.Map.Entry;
  31 import java.util.Set;
  32
  33 import javax.ws.rs.WebApplicationException;
  34 import javax.ws.rs.core.MediaType;
  35 import javax.ws.rs.core.Response;
  36
  37 import org.collectionspace.services.common.authorityref.AuthorityRefList;
  38 import org.collectionspace.services.common.context.MultipartServiceContext;
  39 import org.collectionspace.services.common.context.ServiceContext;
  40 import org.collectionspace.services.common.document.BadRequestException;
  41 import org.collectionspace.services.common.document.DocumentUtils;
  42 import org.collectionspace.services.common.document.DocumentWrapper;
  43 import org.collectionspace.services.common.service.ObjectPartType;
  44 import org.collectionspace.services.common.vocabulary.RefNameUtils;
  45 import org.jboss.resteasy.plugins.providers.multipart.InputPart;
  46 import org.jboss.resteasy.plugins.providers.multipart.MultipartInput;
  47 import org.nuxeo.ecm.core.api.DocumentModel;
  48 import org.nuxeo.ecm.core.api.model.PropertyException;
  49 import org.slf4j.Logger;
  50 import org.slf4j.LoggerFactory;
  51 import org.w3c.dom.Document;
  52
  53 /**
  54  * RemoteDocumentModelHandler
  55  *
  56  * $LastChangedRevision: $
  57  * $LastChangedDate: $
  58  */
  59 public abstract class RemoteDocumentModelHandlerImpl<T, TL>
  60         extends DocumentModelHandler<T, TL> {
  61
  62     private final Logger logger = LoggerFactory.getLogger(RemoteDocumentModelHandlerImpl.class);
  63
  64     @Override
  65     public void setServiceContext(ServiceContext ctx) {
  66         if(ctx instanceof MultipartServiceContext){
  67             super.setServiceContext(ctx);
  68         }else{
  69             throw new IllegalArgumentException("setServiceContext requires instance of " +
  70                     MultipartServiceContext.class.getName());
  71         }
  72     }
  73
  74     @Override
  75     public void completeUpdate(DocumentWrapper<DocumentModel> wrapDoc) throws Exception {
  76         DocumentModel docModel = wrapDoc.getWrappedObject();
  77         //return at least those document part(s) that were received
  78         Map<String, ObjectPartType> partsMetaMap = getServiceContext().getPartsMetadata();
  79         MultipartServiceContext ctx = (MultipartServiceContext) getServiceContext();
  80         List<InputPart> inputParts = ctx.getInput().getParts();
  81         for(InputPart part : inputParts){
  82             String partLabel = part.getHeaders().getFirst("label");
  83             ObjectPartType partMeta = partsMetaMap.get(partLabel);
  84 //            extractPart(docModel, partLabel, partMeta);
  85                         Map<String, Object> unQObjectProperties = extractPart(docModel, partLabel, partMeta);
  86                         addOutputPart(unQObjectProperties, partLabel, partMeta);
  87         }
  88     }
  89
  90     private void addOutputPart(Map<String, Object> unQObjectProperties, String schema, ObjectPartType partMeta)
  91                 throws Exception {
  92                 Document doc = DocumentUtils.buildDocument(partMeta, schema,
  93                                 unQObjectProperties);
  94                 if (logger.isDebugEnabled()) {
  95                         DocumentUtils.writeDocument(doc, System.out);
  96                 }
  97                 MultipartServiceContext ctx = (MultipartServiceContext) getServiceContext();
  98                 ctx.addOutputPart(schema, doc, partMeta.getContent().getContentType());
  99     }
 100
 101         @Override
 102         public void extractAllParts(DocumentWrapper<DocumentModel> wrapDoc)
 103                         throws Exception {
 104
 105                 DocumentModel docModel = wrapDoc.getWrappedObject();
 106                 String[] schemas = docModel.getDeclaredSchemas();
 107                 Map<String, ObjectPartType> partsMetaMap = getServiceContext().getPartsMetadata();
 108                 for (String schema : schemas) {
 109                         ObjectPartType partMeta = partsMetaMap.get(schema);
 110                         if (partMeta == null) {
 111                                 continue; // unknown part, ignore
 112                         }
 113                         Map<String, Object> unQObjectProperties = extractPart(docModel, schema, partMeta);
 114                         addOutputPart(unQObjectProperties, schema, partMeta);
 115                 }
 116         }
 117
 118     @Override
 119     public void fillAllParts(DocumentWrapper<DocumentModel> wrapDoc) throws Exception {
 120
 121         //TODO filling extension parts should be dynamic
 122         //Nuxeo APIs lack to support stream/byte[] input, get/setting properties is
 123         //not an ideal way of populating objects.
 124         DocumentModel docModel = wrapDoc.getWrappedObject();
 125         MultipartServiceContext ctx = (MultipartServiceContext) getServiceContext();
 126         MultipartInput input = ctx.getInput();
 127         if(input.getParts().isEmpty()){
 128             String msg = "No payload found!";
 129             logger.error(msg + "Ctx=" + getServiceContext().toString());
 130             throw new BadRequestException(msg);
 131         }
 132
 133         Map<String, ObjectPartType> partsMetaMap = getServiceContext().getPartsMetadata();
 134
 135         //iterate over parts received and fill those parts
 136         List<InputPart> inputParts = input.getParts();
 137         for(InputPart part : inputParts){
 138
 139             String partLabel = part.getHeaders().getFirst("label");
 140             if (partLabel == null) {
 141                 String msg = "Part label is missing or empty!";
 142                 logger.error(msg + "Ctx=" + getServiceContext().toString());
 143                 throw new BadRequestException(msg);
 144             }
 145
 146             //skip if the part is not in metadata
 147             if(!partsMetaMap.containsKey(partLabel)){
 148                 continue;
 149             }
 150             ObjectPartType partMeta = partsMetaMap.get(partLabel);
 151             fillPart(part, docModel, partMeta);
 152         }//rof
 153
 154     }
 155
 156     /**
 157      * fillPart fills an XML part into given document model
 158      * @param part to fill
 159      * @param docModel for the given object
 160      * @param partMeta metadata for the object to fill
 161      * @throws Exception
 162      */
 163     protected void fillPart(InputPart part, DocumentModel docModel, ObjectPartType partMeta)
 164             throws Exception {
 165         InputStream payload = part.getBody(InputStream.class, null);
 166
 167         //check if this is an xml part
 168         if(part.getMediaType().equals(MediaType.APPLICATION_XML_TYPE)){
 169             if(payload != null){
 170                 Document document = DocumentUtils.parseDocument(payload);
 171                 //TODO: callback to handler if registered to validate the
 172                 //document
 173                 Map<String, Object> objectProps = DocumentUtils.parseProperties(document);
 174                 docModel.setProperties(partMeta.getLabel(), objectProps);
 175             }
 176         }
 177     }
 178
 179     /**
 180      * extractPart extracts an XML object from given DocumentModel
 181      * @param docModel
 182      * @param schema of the object to extract
 183      * @param partMeta metadata for the object to extract
 184      * @throws Exception
 185      */
 186     protected Map<String, Object> extractPart(DocumentModel docModel, String schema, ObjectPartType partMeta)
 187             throws Exception {
 188         Map<String, Object> result = null;
 189
 190         MediaType mt = MediaType.valueOf(partMeta.getContent().getContentType());
 191         if (mt.equals(MediaType.APPLICATION_XML_TYPE)){
 192             Map<String, Object> objectProps = docModel.getProperties(schema);
 193             //unqualify properties before sending the doc over the wire (to save bandwidh)
 194             //FIXME: is there a better way to avoid duplication of a collection?
 195             Map<String, Object> unQObjectProperties = new HashMap<String, Object>();
 196             Set<Entry<String, Object>> qualifiedEntries = objectProps.entrySet();
 197             for(Entry<String, Object> entry : qualifiedEntries){
 198                 String unqProp = getUnQProperty(entry.getKey());
 199                 unQObjectProperties.put(unqProp, entry.getValue());
 200             }
 201             result = unQObjectProperties;
 202         } //TODO: handle other media types
 203
 204         return result;
 205     }
 206
 207     /* (non-Javadoc)
 208      * @see org.collectionspace.services.nuxeo.client.java.DocumentModelHandler#getAuthorityRefs(org.collectionspace.services.common.document.DocumentWrapper, java.util.List)
 209      */
 210     @Override
 211     public AuthorityRefList getAuthorityRefs(
 212                 DocumentWrapper<DocumentModel> docWrapper,
 213                 List<String> authRefFields) throws PropertyException {
 214         AuthorityRefList authRefList = new AuthorityRefList();
 215         try {
 216                 DocumentModel docModel = docWrapper.getWrappedObject();
 217                 List<AuthorityRefList.AuthorityRefItem> list = authRefList.getAuthorityRefItem();
 218
 219                 for (String field : authRefFields) {
 220                         String refName = (String) docModel.getPropertyValue(field);
 221                         if (refName == null)
 222                                 continue;
 223                         try {
 224                                 RefNameUtils.AuthorityTermInfo termInfo = RefNameUtils
 225                                 .parseAuthorityTermInfo(refName);
 226                                 AuthorityRefList.AuthorityRefItem ilistItem = new AuthorityRefList.AuthorityRefItem();
 227                                 ilistItem.setRefName(refName);
 228                                 ilistItem.setAuthDisplayName(termInfo.inAuthority.displayName);
 229                                 ilistItem.setItemDisplayName(termInfo.displayName);
 230                                 ilistItem.setSourceField(field);
 231                                 ilistItem.setUri(termInfo.getRelativeUri());
 232                                 list.add(ilistItem);
 233                         } catch (Exception e) {
 234                                 // FIXME: Do we need to throw this Exception here?
 235                                 if (logger.isDebugEnabled()) {
 236                                         logger.debug("Caught exception in getAuthorityRefs", e);
 237                                 }
 238                         }
 239                 }
 240         } catch (PropertyException pe) {
 241                 String msg = "Attempted to retrieve value for invalid or missing authority field. "
 242                         + "Check authority field properties in tenant bindings.";
 243                 logger.warn(msg, pe);
 244                 throw pe;
 245         } catch (Exception e) {
 246                 if (logger.isDebugEnabled()) {
 247                         logger.debug("Caught exception in getAuthorityRefs", e);
 248                 }
 249                 Response response = Response.status(
 250                                 Response.Status.INTERNAL_SERVER_ERROR).entity(
 251                                 "Failed to retrieve authority references").type(
 252                                 "text/plain").build();
 253                 throw new WebApplicationException(response);
 254         }
 255         return authRefList;
 256     }
 257 }