1/*
2 * Copyright (C) 2015 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 */
16package com.google.currysrc.processors;
17
18import com.google.currysrc.api.process.Context;
19import com.google.currysrc.api.process.Processor;
20
21import org.eclipse.jdt.core.dom.CompilationUnit;
22import org.eclipse.jface.text.BadLocationException;
23import org.eclipse.jface.text.Document;
24
25/**
26 * Inserts a header to the beginning of a {@link CompilationUnit}.
27 */
28public class InsertHeader implements Processor {
29
30  private final String header;
31
32  public InsertHeader(String header) {
33    this.header = header;
34  }
35
36  @Override
37  public void process(Context context, CompilationUnit cu) {
38    Document document = context.document();
39    try {
40      document.replace(0, 0, header);
41    } catch (BadLocationException e) {
42      throw new AssertionError(e);
43    }
44  }
45
46  @Override
47  public String toString() {
48    return "InsertHeader";
49  }
50}
51