web service API for File Update

[renju]

Hi All,
 
    All the web service API use reference to node to do the operations. Can anybody please tell me how to get a particular node reference? For example I have one repository company home and have folder Data Dictionary. There is a file called sample.doc in it. I want to update the content of this file. If I am using th below code,

contentService.write(ref, Constants.PROP_CONTENT, bytes, null); where bytes represens the bytes of the new file and ref is the reference of the sample.doc node.

How I will get "ref" in the above case? If I use the below code I am getting the following exception.

Reference ref = new Reference(STORE, null, "/app:company_home/cm:sample_folder/cm:1302166870916_sampleFile.pdf");

Exception ——


Exception in thread "main" AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.generalException
faultSubcode:
faultString:
faultActor:
faultNode:
faultDetail:
   {http://www.alfresco.org/ws/service/content/1.0}ContentFault:<ns1:errorCode>0</ns1:errorCode><ns1:message>03070592 Error executing xpath:
   xpath: /app:company_home/cm:sample_folder/cm:1302166870916_sampleFile.pdf</ns1:message>
   {http://xml.apache.org/axis/}exceptionNamerg.alfresco.repo.webservice.content.ContentFault
   {http://xml.apache.org/axis/}stackTrace:
   at org.alfresco.repo.webservice.content.ContentWebService.write(ContentWebService.java:227)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.apache.axis.providers.java.RPCProvider.invokeMethod(RPCProvider.java:397)
   at org.apache.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:186)
   at org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:323)
   at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
   at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
   at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
   at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:454)
   at org.apache.axis.server.AxisServer.invoke(AxisServer.java:281)
   at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:699)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
   at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.alfresco.web.app.servlet.GlobalLocalizationFilter.doFilter(GlobalLocalizationFilter.java:58)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
   at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:859)
   at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579)
   at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1555)
   at java.lang.Thread.run(Thread.java:619)

   {http://xml.apache.org/axis/}hostnameTL-HO-RND22


   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
   at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
   at java.lang.Class.newInstance0(Class.java:355)
   at java.lang.Class.newInstance(Class.java:308)
   at org.apache.axis.encoding.ser.BeanDeserializer.<init>(BeanDeserializer.java:104)
   at org.apache.axis.encoding.ser.BeanDeserializer.<init>(BeanDeserializer.java:90)
   at org.alfresco.webservice.content.ContentFault.getDeserializer(ContentFault.java:146)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.apache.axis.encoding.ser.BaseDeserializerFactory.getSpecialized(BaseDeserializerFactory.java:154)
   at org.apache.axis.encoding.ser.BaseDeserializerFactory.getDeserializerAs(BaseDeserializerFactory.java:84)
   at org.apache.axis.encoding.DeserializationContext.getDeserializer(DeserializationContext.java:464)
   at org.apache.axis.encoding.DeserializationContext.getDeserializerForType(DeserializationContext.java:547)
   at org.apache.axis.message.SOAPFaultDetailsBuilder.onStartChild(SOAPFaultDetailsBuilder.java:157)
   at org.apache.axis.encoding.DeserializationContext.startElement(DeserializationContext.java:1035)
   at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
   at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
   at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
   at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
   at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
   at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
   at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
   at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
   at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
   at org.apache.xerces.jaxp.SAXParserImpl.parse(Unknown Source)
   at org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:227)
   at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)
   at org.apache.axis.Message.getSOAPEnvelope(Message.java:435)
   at org.apache.axis.handlers.soap.MustUnderstandChecker.invoke(MustUnderstandChecker.java:62)
   at org.apache.axis.client.AxisClient.invoke(AxisClient.java:206)
   at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
   at org.apache.axis.client.Call.invoke(Call.java:2767)
   at org.apache.axis.client.Call.invoke(Call.java:2443)
   at org.apache.axis.client.Call.invoke(Call.java:2366)
   at org.apache.axis.client.Call.invoke(Call.java:1812)
   at org.alfresco.webservice.content.ContentServiceSoapBindingStub.write(ContentServiceSoapBindingStub.java:513)
   at org.alfresco.sample.webservice.ContentWriteAndReadFile.main(ContentWriteAndReadFile.java:123)




Somebody please help me….

Renju

[openpj]

The Node Reference is a Java object class that you have to get from a search against the repository.

The first step is to use the SearchService to get all the node references that you need, for example executing a Lucene Query and then you can iterate results getting the node reference for each result.

This is an example that should work, I have not tested it but I think that it is ok:

ServiceRegistry serviceRegistry = (ServiceRegistry) ctx.getBean(ServiceRegistry.SERVICE_REGISTRY);

String luceneQuery = "@cm\\:name\"1302166870916_sampleFile.pdf\"";

SearchParameters searchParameters = new SearchParameters();
searchParameters.addStore(Repository.getStoreRef());
searchParameters.setLanguage(SearchService.LANGUAGE_LUCENE);
searchParameters.setQuery(luceneQuery);
         
ResultSet results = serviceRegistry.getSearchService().query(searchParameters);
NodeRef sampleContentNodeRef = results.getNodeRef(0);

…
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Hope this helps.