public interface IHelpContentProducerProducer capable of generating or otherwise obtaining contents for help resources. A plug-in can contribute instance of IHelpContentProducer to
"org.eclipse.help.contentProducer"extension point. When content for a resource is needed from a plug-in is needed, help tries to obtain content from instance of this class contributed by the plugin. If IHelpContentProvider does not return the content, help system searches doc.zip and plug-in install location for the file and reads its content.
InputStream getInputStream(String pluginID, String href, Locale locale)Obtains content of a specified help resource. If resource for a given path does not exist, a null should be returned. If topic content is static, and corresponding file exist in a plug-in directory or doc.zip file, null might be return as help system can read the file content itself.
pluginID- unique identifier of a plug-in containing the resource
href- path of the resource in a plug-in.
An href has a format path/to/resource or path/to/resource?parameter=value1¶meter2=value2... For example, references/myclass.html may be passed.
locale- used by the client. In most cases, content in a user language should be produced.
- InputStream or null if specified resource is not dynamic and should be read from doc.zip or plug-in install location.