1 | /** |
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2 | * Licensed to the Apache Software Foundation (ASF) under one |
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3 | * or more contributor license agreements. See the NOTICE file |
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4 | * distributed with this work for additional information |
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5 | * regarding copyright ownership. The ASF licenses this file |
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6 | * to you under the Apache License, Version 2.0 (the |
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7 | * "License"); you may not use this file except in compliance |
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8 | * with the License. You may obtain a copy of the License at |
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9 | * |
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10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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11 | * |
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12 | * Unless required by applicable law or agreed to in writing, software |
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13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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15 | * See the License for the specific language governing permissions and |
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16 | * limitations under the License. |
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17 | */ |
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18 | |
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19 | package org.apache.hadoop.record.compiler; |
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20 | |
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21 | import java.util.ArrayList; |
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22 | import java.io.File; |
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23 | import java.io.FileWriter; |
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24 | import java.io.IOException; |
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25 | import java.util.Iterator; |
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26 | |
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27 | /** |
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28 | * C Code generator front-end for Hadoop record I/O. |
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29 | */ |
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30 | class CGenerator extends CodeGenerator { |
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31 | |
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32 | CGenerator() { |
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33 | } |
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34 | |
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35 | /** |
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36 | * Generate C code. This method only creates the requested file(s) |
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37 | * and spits-out file-level elements (such as include statements etc.) |
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38 | * record-level code is generated by JRecord. |
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39 | */ |
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40 | void genCode(String name, ArrayList<JFile> ilist, |
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41 | ArrayList<JRecord> rlist, String destDir, ArrayList<String> options) |
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42 | throws IOException { |
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43 | name = new File(destDir, (new File(name)).getName()).getAbsolutePath(); |
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44 | FileWriter cc = new FileWriter(name+".c"); |
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45 | try { |
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46 | FileWriter hh = new FileWriter(name+".h"); |
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47 | try { |
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48 | hh.write("#ifndef __"+name.toUpperCase().replace('.','_')+"__\n"); |
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49 | hh.write("#define __"+name.toUpperCase().replace('.','_')+"__\n"); |
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50 | hh.write("#include \"recordio.h\"\n"); |
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51 | for (Iterator<JFile> iter = ilist.iterator(); iter.hasNext();) { |
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52 | hh.write("#include \""+iter.next().getName()+".h\"\n"); |
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53 | } |
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54 | |
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55 | cc.write("#include \""+name+".h\"\n"); |
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56 | |
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57 | /* |
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58 | for (Iterator<JRecord> iter = rlist.iterator(); iter.hasNext();) { |
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59 | iter.next().genCppCode(hh, cc); |
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60 | } |
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61 | */ |
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62 | |
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63 | hh.write("#endif //"+name.toUpperCase().replace('.','_')+"__\n"); |
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64 | } finally { |
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65 | hh.close(); |
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66 | } |
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67 | } finally { |
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68 | cc.close(); |
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69 | } |
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70 | } |
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71 | } |
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