@PipelineProperty(description = "Set file system permissions of finished files (example: 'rwxr--r--')",
            displayPriority = 8)
    public void setFilePermissions(final String filePermissions) {
        this.filePermissions = filePermissions;
    }
@param outputPaths the outputPaths to set
stroom-pipeline/src/main/java/stroom/pipeline/writer/FileAppender.java