Software Environment

Abstract

The DFC method IDfSysObject#getContent() cannot be used from .NET because this method returns a Java-specific object that cannot be translated to .NET. This article looks at using a Service-based Business Object(SBO) to overcome this and access the binary content from .NET.

Introduction

The method IDfSysObject#getContent() returns a Java object of type java.io.ByteArrayInputStream. This object cannot be translated to .NET and hence this method cannot be used from .NET. One way to overcome this problem is to use a Service-base Business Object (SBO) that translates the Java object into another that can be read from .NET. This SBO can then be accessed from .NET to obtain the binary data.

SBO

The SBO is written in Java and hence can call the getContent() method. It obtains the ByteArrayInputStream object and converts the bytes to an com.documentum.fc.common.IDfList DFC object that can be read in .NET. The IDfList contains the list of bytes from the ByteArrayInputStream object. The .NET code can call the SBO and get the IDfList object, from which it can read the bytes.

Download

AccessBinaryContentFromDotNET.zip

Installation and Configuration

• Extract the above file to a convenient location.
• The file contains the following -
  • binaryContentService.jar - The interface jars for the SBO
  • binaryContentServiceImpl.jar - The implementation class jar for the SBO
  • source.zip - The Java and .NET source code files. The .NET source code shows how to invoke the SBO
• Register the SBO following the instructions in the article BOF 2.0 Registration. Following are the parameters of the SBO -
  Name - com.documentum.devprog.bincontent.IBinaryContentService
  Interface - com.documentum.devprog.bincontent.IBinaryContentService
  Implementation Class - com.documentum.devprog.bincontent.impl.BinaryContentService
  Interface Jar - binaryContentService.jar
  Implementation Class Jar - binaryContentServiceImpl.jar