1 | /*
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2 | * Copyright 2002-2005 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 | package org.apache.tools.ant.taskdefs.optional.extension.resolvers;
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18 |
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19 | import java.io.File;
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20 | import java.io.IOException;
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21 | import org.apache.tools.ant.BuildException;
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22 | import org.apache.tools.ant.Project;
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23 | import org.apache.tools.ant.taskdefs.Ant;
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24 | import org.apache.tools.ant.taskdefs.optional.extension.Extension;
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25 | import org.apache.tools.ant.taskdefs.optional.extension.ExtensionResolver;
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26 |
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27 | /**
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28 | * Resolver that just returns s specified location.
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29 | *
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30 | */
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31 | public class AntResolver implements ExtensionResolver {
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32 | private File antfile;
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33 | private File destfile;
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34 | private String target;
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35 |
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36 | /**
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37 | * Sets the ant file
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38 | * @param antfile the ant file to set
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39 | */
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40 | public void setAntfile(final File antfile) {
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41 | this.antfile = antfile;
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42 | }
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43 |
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44 | /**
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45 | * Sets the destination file
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46 | * @param destfile the destination file
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47 | */
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48 | public void setDestfile(final File destfile) {
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49 | this.destfile = destfile;
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50 | }
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51 |
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52 | /**
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53 | * Sets the target
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54 | * @param target the target
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55 | */
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56 | public void setTarget(final String target) {
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57 | this.target = target;
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58 | }
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59 |
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60 | /**
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61 | * Returns the resolved file
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62 | * @param extension the extension
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63 | * @param project the project
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64 | * @return the file resolved
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65 | * @throws BuildException if the file cannot be resolved
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66 | */
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67 | public File resolve(final Extension extension,
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68 | final Project project) throws BuildException {
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69 | validate();
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70 |
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71 | final Ant ant = (Ant) project.createTask("ant");
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72 | ant.setInheritAll(false);
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73 | ant.setAntfile(antfile.getName());
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74 |
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75 | try {
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76 | final File dir =
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77 | antfile.getParentFile().getCanonicalFile();
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78 | ant.setDir(dir);
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79 | } catch (final IOException ioe) {
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80 | throw new BuildException(ioe.getMessage(), ioe);
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81 | }
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82 |
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83 | if (null != target) {
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84 | ant.setTarget(target);
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85 | }
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86 |
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87 | ant.execute();
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88 |
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89 | return destfile;
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90 | }
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91 |
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92 | /*
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93 | * Validates URL
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94 | */
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95 | private void validate() {
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96 | if (null == antfile) {
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97 | final String message = "Must specify Buildfile";
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98 | throw new BuildException(message);
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99 | }
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100 |
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101 | if (null == destfile) {
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102 | final String message = "Must specify destination file";
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103 | throw new BuildException(message);
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104 | }
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105 | }
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106 |
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107 | /**
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108 | * Returns a string representation
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109 | * @return the string representation
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110 | */
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111 | public String toString() {
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112 | return "Ant[" + antfile + "==>" + destfile + "]";
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113 | }
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114 | }
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