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:
6 * http://www.collectionspace.org
7 * http://wiki.collectionspace.org
9 * Copyright 2009 University of California at Berkeley
11 * Licensed under the Educational Community License (ECL), Version 2.0.
12 * You may not use this file except in compliance with this License.
14 * You may obtain a copy of the ECL 2.0 License at
16 * https://source.collectionspace.org/collection-space/LICENSE.txt
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.
24 package org.collectionspace.services.nuxeo.client.java;
26 import java.io.InputStream;
27 import java.util.Collection;
28 import java.util.HashMap;
29 import java.util.List;
31 import java.util.Map.Entry;
34 import javax.ws.rs.WebApplicationException;
35 import javax.ws.rs.core.MediaType;
36 import javax.ws.rs.core.Response;
38 import org.collectionspace.services.authorization.AccountPermission;
39 import org.collectionspace.services.jaxb.AbstractCommonList;
40 import org.collectionspace.services.client.PayloadInputPart;
41 import org.collectionspace.services.client.PayloadOutputPart;
42 import org.collectionspace.services.client.PoxPayloadIn;
43 import org.collectionspace.services.client.PoxPayloadOut;
44 import org.collectionspace.services.client.workflow.WorkflowClient;
45 import org.collectionspace.services.common.authorityref.AuthorityRefList;
46 import org.collectionspace.services.common.authorization_mgt.AuthorizationCommon;
47 import org.collectionspace.services.common.context.JaxRsContext;
48 import org.collectionspace.services.common.context.MultipartServiceContext;
49 import org.collectionspace.services.common.context.ServiceContext;
50 import org.collectionspace.services.common.document.BadRequestException;
51 import org.collectionspace.services.common.document.DocumentNotFoundException;
52 import org.collectionspace.services.common.document.DocumentUtils;
53 import org.collectionspace.services.common.document.DocumentWrapper;
54 import org.collectionspace.services.common.document.DocumentFilter;
55 import org.collectionspace.services.common.document.DocumentHandler.Action;
56 import org.collectionspace.services.common.security.SecurityUtils;
57 import org.collectionspace.services.common.security.UnauthorizedException;
58 import org.collectionspace.services.common.service.ObjectPartType;
59 import org.collectionspace.services.common.storage.jpa.JpaStorageUtils;
60 import org.collectionspace.services.common.vocabulary.RefNameUtils;
61 import org.dom4j.Element;
63 import org.jboss.resteasy.plugins.providers.multipart.InputPart;
64 import org.jboss.resteasy.plugins.providers.multipart.MultipartInput;
66 import org.nuxeo.ecm.core.api.DocumentModel;
67 import org.nuxeo.ecm.core.api.DocumentModelList;
68 import org.nuxeo.ecm.core.api.model.Property;
69 import org.nuxeo.ecm.core.api.model.PropertyException;
71 import org.nuxeo.ecm.core.schema.types.Schema;
73 import org.slf4j.Logger;
74 import org.slf4j.LoggerFactory;
75 import org.dom4j.Document;
78 * RemoteDocumentModelHandler
80 * $LastChangedRevision: $
85 public abstract class RemoteDocumentModelHandlerImpl<T, TL>
86 extends DocumentModelHandler<T, TL> {
89 private final Logger logger = LoggerFactory.getLogger(RemoteDocumentModelHandlerImpl.class);
92 * @see org.collectionspace.services.common.document.AbstractDocumentHandlerImpl#setServiceContext(org.collectionspace.services.common.context.ServiceContext)
95 public void setServiceContext(ServiceContext ctx) { //FIXME: Apply proper generics to ServiceContext<PoxPayloadIn, PoxPayloadOut>
96 if (ctx instanceof MultipartServiceContext) {
97 super.setServiceContext(ctx);
99 throw new IllegalArgumentException("setServiceContext requires instance of "
100 + MultipartServiceContext.class.getName());
105 * @see org.collectionspace.services.nuxeo.client.java.DocumentModelHandler#completeUpdate(org.collectionspace.services.common.document.DocumentWrapper)
108 public void completeUpdate(DocumentWrapper<DocumentModel> wrapDoc) throws Exception {
109 DocumentModel docModel = wrapDoc.getWrappedObject();
110 //return at least those document part(s) that were received
111 Map<String, ObjectPartType> partsMetaMap = getServiceContext().getPartsMetadata();
112 MultipartServiceContext ctx = (MultipartServiceContext) getServiceContext();
113 PoxPayloadIn input = ctx.getInput();
115 List<PayloadInputPart> inputParts = ctx.getInput().getParts();
116 for (PayloadInputPart part : inputParts) {
117 String partLabel = part.getLabel();
119 ObjectPartType partMeta = partsMetaMap.get(partLabel);
120 // extractPart(docModel, partLabel, partMeta);
121 Map<String, Object> unQObjectProperties = extractPart(docModel, partLabel, partMeta);
122 addOutputPart(unQObjectProperties, partLabel, partMeta);
123 } catch (Throwable t){
125 System.out.println("===============================\r\nUnable to addOutputPart: "+partLabel
126 +" in serviceContextPath: "+this.getServiceContextPath()
127 +" with URI: "+this.getServiceContext().getUriInfo().getPath()
132 if (logger.isWarnEnabled() == true) {
133 logger.warn("MultipartInput part was null for document id = " +
140 * Adds the output part.
142 * @param unQObjectProperties the un q object properties
143 * @param schema the schema
144 * @param partMeta the part meta
145 * @throws Exception the exception
146 * MediaType.APPLICATION_XML_TYPE
148 protected void addOutputPart(Map<String, Object> unQObjectProperties, String schema, ObjectPartType partMeta)
150 Element doc = DocumentUtils.buildDocument(partMeta, schema,
151 unQObjectProperties);
152 if (logger.isTraceEnabled() == true) {
153 logger.trace(doc.asXML());
155 MultipartServiceContext ctx = (MultipartServiceContext) getServiceContext();
156 ctx.addOutputPart(schema, doc, partMeta.getContent().getContentType());
160 * Extract paging info.
162 * @param commonsList the commons list
164 * @throws Exception the exception
166 public TL extractPagingInfo(TL theCommonList, DocumentWrapper<DocumentModelList> wrapDoc)
168 AbstractCommonList commonList = (AbstractCommonList) theCommonList;
170 DocumentFilter docFilter = this.getDocumentFilter();
171 long pageSize = docFilter.getPageSize();
172 long pageNum = pageSize != 0 ? docFilter.getOffset() / pageSize : pageSize;
173 // set the page size and page number
174 commonList.setPageNum(pageNum);
175 commonList.setPageSize(pageSize);
176 DocumentModelList docList = wrapDoc.getWrappedObject();
177 // Set num of items in list. this is useful to our testing framework.
178 commonList.setItemsInPage(docList.size());
179 // set the total result size
180 commonList.setTotalItems(docList.totalSize());
182 return (TL) commonList;
186 * @see org.collectionspace.services.nuxeo.client.java.DocumentModelHandler#extractAllParts(org.collectionspace.services.common.document.DocumentWrapper)
189 public void extractAllParts(DocumentWrapper<DocumentModel> wrapDoc)
192 DocumentModel docModel = wrapDoc.getWrappedObject();
193 String[] schemas = docModel.getDeclaredSchemas();
194 Map<String, ObjectPartType> partsMetaMap = getServiceContext().getPartsMetadata();
195 for (String schema : schemas) {
196 ObjectPartType partMeta = partsMetaMap.get(schema);
197 if (partMeta == null) {
198 continue; // unknown part, ignore
200 Map<String, Object> unQObjectProperties = extractPart(docModel, schema, partMeta);
201 addOutputPart(unQObjectProperties, schema, partMeta);
203 addAccountPermissionsPart();
206 private void addAccountPermissionsPart() throws Exception {
207 MultipartServiceContext ctx = (MultipartServiceContext) getServiceContext();
208 String currentServiceName = ctx.getServiceName();
209 String workflowSubResource = "/";
210 JaxRsContext jaxRsContext = ctx.getJaxRsContext();
211 if (jaxRsContext != null) {
212 String resourceName = SecurityUtils.getResourceName(jaxRsContext.getUriInfo());
213 workflowSubResource = workflowSubResource + resourceName + WorkflowClient.SERVICE_PATH + "/";
215 workflowSubResource = workflowSubResource + currentServiceName + WorkflowClient.SERVICE_AUTHZ_SUFFIX;
217 AccountPermission accountPermission = JpaStorageUtils.getAccountPermissions(JpaStorageUtils.CS_CURRENT_USER,
218 currentServiceName, workflowSubResource);
219 PayloadOutputPart accountPermissionPart = new PayloadOutputPart("account_permission", accountPermission);
220 ctx.addOutputPart(accountPermissionPart);
224 * @see org.collectionspace.services.nuxeo.client.java.DocumentModelHandler#fillAllParts(org.collectionspace.services.common.document.DocumentWrapper)
227 public void fillAllParts(DocumentWrapper<DocumentModel> wrapDoc, Action action) throws Exception {
229 //TODO filling extension parts should be dynamic
230 //Nuxeo APIs lack to support stream/byte[] input, get/setting properties is
231 //not an ideal way of populating objects.
232 DocumentModel docModel = wrapDoc.getWrappedObject();
233 MultipartServiceContext ctx = (MultipartServiceContext) getServiceContext();
234 PoxPayloadIn input = ctx.getInput();
235 if (input.getParts().isEmpty()) {
236 String msg = "No payload found!";
237 logger.error(msg + "Ctx=" + getServiceContext().toString());
238 throw new BadRequestException(msg);
241 Map<String, ObjectPartType> partsMetaMap = getServiceContext().getPartsMetadata();
243 //iterate over parts received and fill those parts
244 List<PayloadInputPart> inputParts = input.getParts();
245 for (PayloadInputPart part : inputParts) {
247 String partLabel = part.getLabel();
248 if (partLabel == null) {
249 String msg = "Part label is missing or empty!";
250 logger.error(msg + "Ctx=" + getServiceContext().toString());
251 throw new BadRequestException(msg);
254 //skip if the part is not in metadata
255 ObjectPartType partMeta = partsMetaMap.get(partLabel);
256 if (partMeta == null) {
259 fillPart(part, docModel, partMeta, action, ctx);
265 * fillPart fills an XML part into given document model
266 * @param part to fill
267 * @param docModel for the given object
268 * @param partMeta metadata for the object to fill
271 protected void fillPart(PayloadInputPart part, DocumentModel docModel,
272 ObjectPartType partMeta, Action action, ServiceContext<PoxPayloadIn, PoxPayloadOut> ctx)
274 //check if this is an xml part
275 if (part.getMediaType().equals(MediaType.APPLICATION_XML_TYPE)) {
276 // Document document = DocumentUtils.parseDocument(payload, partMeta,
277 // false /*don't validate*/);
278 Element element = part.getElementBody();
279 Map<String, Object> objectProps = DocumentUtils.parseProperties(partMeta, element, ctx);
280 if (action == Action.UPDATE) {
281 this.filterReadOnlyPropertiesForPart(objectProps, partMeta);
283 docModel.setProperties(partMeta.getLabel(), objectProps);
288 * Filters out read only properties, so they cannot be set on update.
289 * TODO: add configuration support to do this generally
290 * @param objectProps the properties parsed from the update payload
291 * @param partMeta metadata for the object to fill
293 public void filterReadOnlyPropertiesForPart(
294 Map<String, Object> objectProps, ObjectPartType partMeta) {
295 // Currently a no-op, but can be overridden in Doc handlers.
299 * extractPart extracts an XML object from given DocumentModel
301 * @param schema of the object to extract
302 * @param partMeta metadata for the object to extract
305 protected Map<String, Object> extractPart(DocumentModel docModel, String schema)
307 return extractPart(docModel, schema, (Map<String, Object>)null);
311 * extractPart extracts an XML object from given DocumentModel
313 * @param schema of the object to extract
314 * @param partMeta metadata for the object to extract
318 protected Map<String, Object> extractPart(DocumentModel docModel, String schema, ObjectPartType partMeta)
320 return extractPart(docModel, schema, partMeta, null);
324 * extractPart extracts an XML object from given DocumentModel
326 * @param schema of the object to extract
327 * @param partMeta metadata for the object to extract
330 protected Map<String, Object> extractPart(
331 DocumentModel docModel,
333 Map<String, Object> addToMap)
335 Map<String, Object> result = null;
337 Map<String, Object> objectProps = docModel.getProperties(schema);
338 if (objectProps != null) {
339 //unqualify properties before sending the doc over the wire (to save bandwidh)
340 //FIXME: is there a better way to avoid duplication of a Map/Collection?
341 Map<String, Object> unQObjectProperties =
342 (addToMap != null) ? addToMap : (new HashMap<String, Object>());
343 Set<Entry<String, Object>> qualifiedEntries = objectProps.entrySet();
344 for (Entry<String, Object> entry : qualifiedEntries) {
345 String unqProp = getUnQProperty(entry.getKey());
346 unQObjectProperties.put(unqProp, entry.getValue());
348 result = unQObjectProperties;
355 * extractPart extracts an XML object from given DocumentModel
357 * @param schema of the object to extract
358 * @param partMeta metadata for the object to extract
362 protected Map<String, Object> extractPart(
363 DocumentModel docModel, String schema, ObjectPartType partMeta,
364 Map<String, Object> addToMap)
366 Map<String, Object> result = null;
368 result = this.extractPart(docModel, schema, addToMap);
375 * @see org.collectionspace.services.nuxeo.client.java.DocumentModelHandler#getAuthorityRefs(org.collectionspace.services.common.document.DocumentWrapper, java.util.List)
378 public AuthorityRefList getAuthorityRefs(
379 DocumentWrapper<DocumentModel> docWrapper,
380 List<String> authRefFieldNames) throws PropertyException {
382 AuthorityRefList authRefList = new AuthorityRefList();
383 AbstractCommonList commonList = (AbstractCommonList) authRefList;
385 DocumentFilter docFilter = this.getDocumentFilter();
386 long pageSize = docFilter.getPageSize();
387 long pageNum = pageSize != 0 ? docFilter.getOffset() / pageSize : pageSize;
388 // set the page size and page number
389 commonList.setPageNum(pageNum);
390 commonList.setPageSize(pageSize);
392 List<AuthorityRefList.AuthorityRefItem> list = authRefList.getAuthorityRefItem();
393 DocumentModel docModel = docWrapper.getWrappedObject();
396 int iFirstToUse = (int)(pageSize*pageNum);
397 int nFoundInPage = 0;
399 for (String authRefFieldName : authRefFieldNames) {
401 // FIXME: Can use the schema to validate field existence,
402 // to help avoid encountering PropertyExceptions.
403 String schemaName = DocumentUtils.getSchemaNamePart(authRefFieldName);
404 Schema schema = DocumentUtils.getSchemaFromName(schemaName);
406 String descendantAuthRefFieldName = DocumentUtils.getDescendantAuthRefFieldName(authRefFieldName);
407 if (descendantAuthRefFieldName != null && !descendantAuthRefFieldName.trim().isEmpty()) {
408 authRefFieldName = DocumentUtils.getAncestorAuthRefFieldName(authRefFieldName);
411 String xpath = "//" + authRefFieldName;
412 Property prop = docModel.getProperty(xpath);
417 // If this is a single scalar field, with no children,
418 // add an item with its values to the authRefs list.
419 if (DocumentUtils.isSimpleType(prop)) {
420 String refName = prop.getValue(String.class);
421 if (refName == null) {
424 refName = refName.trim();
425 if (refName.isEmpty()) {
428 if((nFoundTotal < iFirstToUse)
429 || (nFoundInPage >= pageSize)) {
435 appendToAuthRefsList(refName, schemaName, authRefFieldName, list);
437 // Otherwise, if this field has children, cycle through each child.
439 // Whenever we find instances of the descendant field among
440 // these children, add an item with its values to the authRefs list.
442 // FIXME: When we increase maximum repeatability depth, that is, the depth
443 // between ancestor and descendant, we'll need to use recursion here,
444 // rather than making fixed assumptions about hierarchical depth.
445 } else if ((DocumentUtils.isListType(prop) || DocumentUtils.isComplexType(prop))
446 && prop.size() > 0) {
448 Collection<Property> childProp = prop.getChildren();
449 for (Property cProp : childProp) {
450 if (DocumentUtils.isSimpleType(cProp) && cProp.getName().equals(descendantAuthRefFieldName)) {
451 String refName = cProp.getValue(String.class);
452 if (refName == null) {
455 refName = refName.trim();
456 if (refName.isEmpty()) {
459 if((nFoundTotal < iFirstToUse)
460 || (nFoundInPage >= pageSize)) {
466 appendToAuthRefsList(refName, schemaName, descendantAuthRefFieldName, list);
467 } else if ((DocumentUtils.isListType(cProp) || DocumentUtils.isComplexType(cProp))
468 && prop.size() > 0) {
469 Collection<Property> grandChildProp = cProp.getChildren();
470 for (Property gProp : grandChildProp) {
471 if (DocumentUtils.isSimpleType(gProp) && gProp.getName().equals(descendantAuthRefFieldName)) {
472 String refName = gProp.getValue(String.class);
473 if (refName == null) {
476 refName = refName.trim();
477 if (refName.isEmpty()) {
480 if((nFoundTotal < iFirstToUse)
481 || (nFoundInPage >= pageSize)) {
487 appendToAuthRefsList(refName, schemaName, descendantAuthRefFieldName, list);
494 // Set num of items in list. this is useful to our testing framework.
495 commonList.setItemsInPage(nFoundInPage);
496 // set the total result size
497 commonList.setTotalItems(nFoundTotal);
499 } catch (PropertyException pe) {
500 String msg = "Attempted to retrieve value for invalid or missing authority field. "
501 + "Check authority field properties in tenant bindings.";
502 logger.warn(msg, pe);
504 } catch (Exception e) {
505 if (logger.isDebugEnabled()) {
506 logger.debug("Caught exception in getAuthorityRefs", e);
508 Response response = Response.status(
509 Response.Status.INTERNAL_SERVER_ERROR).entity(
510 "Failed to retrieve authority references").type(
511 "text/plain").build();
512 throw new WebApplicationException(response);
518 private void appendToAuthRefsList(String refName, String schemaName,
519 String fieldName, List<AuthorityRefList.AuthorityRefItem> list)
521 if (DocumentUtils.getSchemaNamePart(fieldName).isEmpty()) {
522 fieldName = DocumentUtils.appendSchemaName(schemaName, fieldName);
524 list.add(authorityRefListItem(fieldName, refName));
527 private AuthorityRefList.AuthorityRefItem authorityRefListItem(String authRefFieldName, String refName) {
529 AuthorityRefList.AuthorityRefItem ilistItem = new AuthorityRefList.AuthorityRefItem();
531 RefNameUtils.AuthorityTermInfo termInfo = RefNameUtils.parseAuthorityTermInfo(refName);
532 ilistItem.setRefName(refName);
533 ilistItem.setAuthDisplayName(termInfo.inAuthority.displayName);
534 ilistItem.setItemDisplayName(termInfo.displayName);
535 ilistItem.setSourceField(authRefFieldName);
536 ilistItem.setUri(termInfo.getRelativeUri());
537 } catch (Exception e) {
538 // Do nothing upon encountering an Exception here.
544 * Returns the primary value from a list of values.
546 * Assumes that the first value is the primary value.
547 * This assumption may change when and if the primary value
548 * is identified explicitly.
550 * @param values a list of values.
551 * @param propertyName the name of a property through
552 * which the value can be extracted.
553 * @return the primary value.
554 protected String primaryValueFromMultivalue(List<Object> values, String propertyName) {
555 String primaryValue = "";
556 if (values == null || values.size() == 0) {
559 Object value = values.get(0);
560 if (value instanceof String) {
562 primaryValue = (String) value;
564 // Multivalue group of fields
565 } else if (value instanceof Map) {
567 Map map = (Map) value;
568 if (map.values().size() > 0) {
569 if (map.get(propertyName) != null) {
570 primaryValue = (String) map.get(propertyName);
575 logger.warn("Unexpected type for property " + propertyName
576 + " in multivalue list: not String or Map.");
583 * Gets a simple property from the document.
585 * For completeness, as this duplicates DocumentModel method.
587 * @param docModel The document model to get info from
588 * @param schema The name of the schema (part)
589 * @param propertyName The simple scalar property type
590 * @return property value as String
592 protected String getSimpleStringProperty(DocumentModel docModel, String schema, String propName) {
593 String xpath = "/"+schema+":"+propName;
595 return (String)docModel.getPropertyValue(xpath);
596 } catch(PropertyException pe) {
597 throw new RuntimeException("Problem retrieving property {"+xpath+"}. Not a simple String property?"
598 +pe.getLocalizedMessage());
599 } catch(ClassCastException cce) {
600 throw new RuntimeException("Problem retrieving property {"+xpath+"} as String. Not a scalar String property?"
601 +cce.getLocalizedMessage());
602 } catch(Exception e) {
603 throw new RuntimeException("Unknown problem retrieving property {"+xpath+"}."
604 +e.getLocalizedMessage());
609 * Gets first of a repeating list of scalar values, as a String, from the document.
611 * @param docModel The document model to get info from
612 * @param schema The name of the schema (part)
613 * @param listName The name of the scalar list property
614 * @return first value in list, as a String, or empty string if the list is empty
616 protected String getFirstRepeatingStringProperty(
617 DocumentModel docModel, String schema, String listName) {
618 String xpath = "/"+schema+":"+listName+"/[0]";
620 return (String)docModel.getPropertyValue(xpath);
621 } catch(PropertyException pe) {
622 throw new RuntimeException("Problem retrieving property {"+xpath+"}. Not a repeating scalar?"
623 +pe.getLocalizedMessage());
624 } catch(IndexOutOfBoundsException ioobe) {
625 // Nuxeo sometimes handles missing sub, and sometimes does not. Odd.
626 return ""; // gracefully handle missing elements
627 } catch(ClassCastException cce) {
628 throw new RuntimeException("Problem retrieving property {"+xpath+"} as String. Not a repeating String property?"
629 +cce.getLocalizedMessage());
630 } catch(Exception e) {
631 throw new RuntimeException("Unknown problem retrieving property {"+xpath+"}."
632 +e.getLocalizedMessage());
638 * Gets first of a repeating list of scalar values, as a String, from the document.
640 * @param docModel The document model to get info from
641 * @param schema The name of the schema (part)
642 * @param listName The name of the scalar list property
643 * @return first value in list, as a String, or empty string if the list is empty
645 protected String getStringValueInPrimaryRepeatingComplexProperty(
646 DocumentModel docModel, String schema, String complexPropertyName, String fieldName) {
647 String xpath = "/"+schema+":"+complexPropertyName+"/[0]/"+fieldName;
649 return (String)docModel.getPropertyValue(xpath);
650 } catch(PropertyException pe) {
651 throw new RuntimeException("Problem retrieving property {"+xpath+"}. Bad propertyNames?"
652 +pe.getLocalizedMessage());
653 } catch(IndexOutOfBoundsException ioobe) {
654 // Nuxeo sometimes handles missing sub, and sometimes does not. Odd.
655 return ""; // gracefully handle missing elements
656 } catch(ClassCastException cce) {
657 throw new RuntimeException("Problem retrieving property {"+xpath+"} as String. Not a String property?"
658 +cce.getLocalizedMessage());
659 } catch(Exception e) {
660 throw new RuntimeException("Unknown problem retrieving property {"+xpath+"}."
661 +e.getLocalizedMessage());
666 * Gets XPath value from schema. Note that only "/" and "[n]" are
667 * supported for xpath. Can omit grouping elements for repeating complex types,
668 * e.g., "fieldList/[0]" can be used as shorthand for "fieldList/field[0]" and
669 * "fieldGroupList/[0]/field" can be used as shorthand for "fieldGroupList/fieldGroup[0]/field".
670 * If there are no entries for a list of scalars or for a list of complex types,
671 * a 0 index expression (e.g., "fieldGroupList/[0]/field") will safely return an empty
672 * string. A non-zero index will throw an IndexOutOfBoundsException if there are not
673 * that many elements in the list.
674 * N.B.: This does not follow the XPath spec - indices are 0-based, not 1-based.
676 * @param docModel The document model to get info from
677 * @param schema The name of the schema (part)
678 * @param xpath The XPath expression (without schema prefix)
679 * @return value the indicated property value as a String
681 protected static String getXPathStringValue(DocumentModel docModel, String schema, String xpath) {
682 xpath = schema+":"+xpath;
684 return (String)docModel.getPropertyValue(xpath);
685 } catch(PropertyException pe) {
686 throw new RuntimeException("Problem retrieving property {"+xpath+"}. Bad XPath spec?"
687 +pe.getLocalizedMessage());
688 } catch(ClassCastException cce) {
689 throw new RuntimeException("Problem retrieving property {"+xpath+"} as String. Not a String property?"
690 +cce.getLocalizedMessage());
691 } catch(IndexOutOfBoundsException ioobe) {
692 // Nuxeo seems to handle foo/[0]/bar when it is missing,
693 // but not foo/bar[0] (for repeating scalars).
694 if(xpath.endsWith("[0]")) { // gracefully handle missing elements
697 String msg = ioobe.getMessage();
698 if(msg!=null && msg.equals("Index: 0, Size: 0")) {
699 // Some other variant on a missing sub-field; quietly absorb.
701 } // Otherwise, e.g., for true OOB indices, propagate the exception.
703 throw new RuntimeException("Problem retrieving property {"+xpath+"}:"
704 +ioobe.getLocalizedMessage());
705 } catch(Exception e) {
706 throw new RuntimeException("Unknown problem retrieving property {"+xpath+"}."
707 +e.getLocalizedMessage());