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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package util.build;
     18 
     19 import dxconvext.ClassFileAssembler;
     20 
     21 import java.io.File;
     22 import java.io.FileNotFoundException;
     23 import java.io.FileOutputStream;
     24 import java.io.FileReader;
     25 import java.io.OutputStream;
     26 import java.io.Reader;
     27 
     28 public class DFHBuildStep extends BuildStep {
     29 
     30     public DFHBuildStep(BuildFile inputFile, BuildFile outputFile) {
     31         super(inputFile, outputFile);
     32     }
     33 
     34     @Override
     35     boolean build() {
     36         if (super.build()) {
     37             File out_dir = outputFile.fileName.getParentFile();
     38             if (!out_dir.exists() && !out_dir.mkdirs()) {
     39                 System.err.println("failed to create dir: "
     40                         + out_dir.getAbsolutePath());
     41                 return false;
     42             }
     43 
     44             ClassFileAssembler cfAssembler = new ClassFileAssembler();
     45             Reader r;
     46             OutputStream os;
     47             try {
     48                 r = new FileReader(inputFile.fileName);
     49                 os = new FileOutputStream(outputFile.fileName);
     50             } catch (FileNotFoundException e) {
     51                 System.err.println(e);
     52                 return false;
     53             }
     54             try {
     55                 // cfAssembler throws a runtime exception
     56                 cfAssembler.writeClassFile(r, os, true);
     57             } catch (RuntimeException e) {
     58                 System.err.println("error in DFHBuildStep for inputfile "+inputFile.fileName+", outputfile "+outputFile.fileName);
     59                 throw e;
     60             }
     61 
     62             return true;
     63         }
     64         return false;
     65     }
     66 
     67     @Override
     68     public boolean equals(Object obj) {
     69 
     70         if (super.equals(obj)) {
     71             return inputFile.equals(((DFHBuildStep) obj).inputFile)
     72                     && outputFile.equals(((DFHBuildStep) obj).outputFile);
     73         }
     74         return false;
     75     }
     76 
     77     @Override
     78     public int hashCode() {
     79         return (inputFile == null ? 31 : inputFile.hashCode())
     80                 ^ (outputFile == null ? 37 : outputFile.hashCode());
     81     }
     82 }
     83