@PipelineProperty(description = "The user to connect to HDFS as",
            displayPriority = 3)
    public void setRunAsUser(final String runAsUser) {
        this.runAsUser = runAsUser;
    }
@param outputPaths the outputPaths to set
stroom-pipeline/src/main/java/stroom/pipeline/writer/HDFSFileAppender.java