/* * (c) Copyright 2007, 2008 Hewlett-Packard Development Company, LP * All rights reserved. * [See end of file] */ package arq.cmdline; import com.hp.hpl.jena.util.FileManager; import com.hp.hpl.jena.sparql.algebra.Op; import com.hp.hpl.jena.sparql.sse.SSE; public class ModAlgebra implements ArgModuleGeneral { protected final ArgDecl queryFileDecl = new ArgDecl(ArgDecl.HasValue, "query", "file") ; private String queryFilename = null ; private String queryString = null ; private Op op = null ; public void registerWith(CmdGeneral cmdLine) { cmdLine.getUsage().startCategory("Query") ; cmdLine.add(queryFileDecl, "--query, --file", "File containing an algebra query") ; } public void processArgs(CmdArgModule cmdLine) { if ( cmdLine.contains(queryFileDecl) ) { queryFilename = cmdLine.getValue(queryFileDecl) ; queryString = FileManager.get().readWholeFileAsUTF8(queryFilename) ; } if ( cmdLine.getNumPositional() == 0 && queryFilename == null ) cmdLine.cmdError("No query string or query file") ; if ( cmdLine.getNumPositional() > 1 ) cmdLine.cmdError("Only one query string allowed") ; if ( cmdLine.getNumPositional() == 1 && queryFilename != null ) cmdLine.cmdError("Either query string or query file - not both") ; if ( queryFilename == null ) { String qs = cmdLine.getPositionalArg(0) ; queryString = cmdLine.indirect(qs) ; } } public Op getOp() { if ( op != null ) return op ; op = SSE.parseOp(queryString) ; if ( op == null ) System.err.println("Failed to parse : "+queryString) ; return op ; } } /* * (c) Copyright 2007, 2008 Hewlett-Packard Development Company, LP * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */