1 | /*
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2 | * Copyright 2003-2004 The Apache Software Foundation
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3 | *
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4 | * Licensed under the Apache License, Version 2.0 (the "License");
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5 | * you may not use this file except in compliance with the License.
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6 | * You may obtain a copy of the License at
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7 | *
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8 | * http://www.apache.org/licenses/LICENSE-2.0
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9 | *
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10 | * Unless required by applicable law or agreed to in writing, software
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11 | * distributed under the License is distributed on an "AS IS" BASIS,
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 | * See the License for the specific language governing permissions and
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14 | * limitations under the License.
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15 | *
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16 | */
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17 |
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18 | package org.apache.tools.ant.filters;
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19 |
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20 | import java.io.File;
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21 | import java.io.Reader;
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22 | import java.io.FileReader;
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23 | import java.io.IOException;
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24 |
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25 | import org.apache.tools.ant.Project;
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26 | import org.apache.tools.ant.BuildFileTest;
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27 | import org.apache.tools.ant.util.FileUtils;
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28 |
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29 | /**
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30 | */
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31 | public class DynamicFilterTest extends BuildFileTest {
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32 |
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33 | public DynamicFilterTest(String name) {
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34 | super(name);
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35 | }
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36 |
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37 | public void setUp() {
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38 | configureProject("src/etc/testcases/filters/dynamicfilter.xml");
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39 | executeTarget("init");
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40 | }
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41 |
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42 | public void tearDown() {
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43 | executeTarget("cleanup");
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44 | }
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45 | public void testCustomFilter() throws IOException {
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46 | expectFileContains("dynamicfilter", "result/dynamicfilter",
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47 | "hellO wOrld");
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48 | }
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49 |
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50 | // ------------------------------------------------------
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51 | // Helper methods
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52 | // -----------------------------------------------------
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53 |
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54 |
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55 | private void assertStringContains(String string, String contains) {
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56 | assertTrue("[" + string + "] does not contain [" + contains +"]",
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57 | string.indexOf(contains) > -1);
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58 | }
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59 |
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60 | private void assertStringNotContains(String string, String contains) {
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61 | assertTrue("[" + string + "] does contain [" + contains +"]",
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62 | string.indexOf(contains) == -1);
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63 | }
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64 |
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65 | private String getFileString(String filename)
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66 | throws IOException
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67 | {
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68 | Reader r = null;
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69 | try {
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70 | r = new FileReader(getProject().resolveFile(filename));
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71 | return FileUtils.newFileUtils().readFully(r);
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72 | }
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73 | finally {
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74 | try {r.close();} catch (Throwable ignore) {}
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75 | }
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76 |
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77 | }
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78 |
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79 | private String getFileString(String target, String filename)
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80 | throws IOException
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81 | {
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82 | executeTarget(target);
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83 | return getFileString(filename);
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84 | }
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85 |
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86 | private void expectFileContains(String name, String contains)
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87 | throws IOException
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88 | {
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89 | String content = getFileString(name);
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90 | assertTrue(
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91 | "expecting file " + name + " to contain " + contains +
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92 | " but got " + content, content.indexOf(contains) > -1);
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93 | }
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94 |
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95 | private void expectFileContains(
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96 | String target, String name, String contains)
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97 | throws IOException
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98 | {
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99 | executeTarget(target);
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100 | expectFileContains(name, contains);
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101 | }
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102 |
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103 | public static class CustomFilter implements ChainableReader {
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104 | char replace = 'x';
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105 | char with = 'y';
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106 |
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107 | public void setReplace(char replace) {
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108 | this.replace = replace;
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109 | }
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110 |
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111 | public void setWith(char with) {
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112 | this.with = with;
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113 | }
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114 |
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115 | public Reader chain(final Reader rdr) {
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116 | return new BaseFilterReader(rdr) {
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117 | public int read()
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118 | throws IOException
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119 | {
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120 | int c = in.read();
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121 | if (c == replace)
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122 | return with;
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123 | else
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124 | return c;
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125 | }
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126 | };
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127 | }
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128 | }
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129 | }
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