| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.hadoop.record.compiler; |
| |
| import java.io.Writer; |
| import java.util.ArrayList; |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Iterator; |
| |
| import org.apache.commons.io.Charsets; |
| import org.apache.commons.io.output.FileWriterWithEncoding; |
| import org.apache.hadoop.util.StringUtils; |
| |
| /** |
| * C Code generator front-end for Hadoop record I/O. |
| */ |
| class CGenerator extends CodeGenerator { |
| |
| CGenerator() { |
| } |
| |
| /** |
| * Generate C code. This method only creates the requested file(s) |
| * and spits-out file-level elements (such as include statements etc.) |
| * record-level code is generated by JRecord. |
| */ |
| @Override |
| void genCode(String name, ArrayList<JFile> ilist, |
| ArrayList<JRecord> rlist, String destDir, ArrayList<String> options) |
| throws IOException { |
| name = new File(destDir, (new File(name)).getName()).getAbsolutePath(); |
| try (Writer cc = new FileWriterWithEncoding(name+".c", Charsets.UTF_8); |
| Writer hh = new FileWriterWithEncoding(name+".h", Charsets.UTF_8)) { |
| hh.write("#ifndef __"+ |
| StringUtils.toUpperCase(name).replace('.','_')+"__\n"); |
| hh.write("#define __"+ |
| StringUtils.toUpperCase(name).replace('.','_')+"__\n"); |
| hh.write("#include \"recordio.h\"\n"); |
| for (Iterator<JFile> iter = ilist.iterator(); iter.hasNext();) { |
| hh.write("#include \""+iter.next().getName()+".h\"\n"); |
| } |
| |
| cc.write("#include \""+name+".h\"\n"); |
| |
| /* |
| for (Iterator<JRecord> iter = rlist.iterator(); iter.hasNext();) { |
| iter.next().genCppCode(hh, cc); |
| } |
| */ |
| |
| hh.write("#endif //"+ |
| StringUtils.toUpperCase(name).replace('.','_')+"__\n"); |
| } |
| } |
| } |