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.taskdefs;
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19 |
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20 | import org.apache.tools.ant.BuildException;
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21 | import org.apache.tools.ant.ProjectHelper;
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22 | import org.apache.tools.ant.Task;
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23 |
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24 | /**
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25 | * Base class for tasks that that can be used in antlibs.
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26 | * For handling uri and class loading.
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27 | *
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28 | *
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29 | * @since Ant 1.6
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30 | */
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31 | public class AntlibDefinition extends Task {
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32 |
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33 | private String uri = "";
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34 | private ClassLoader antlibClassLoader;
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35 |
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36 | /**
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37 | * The URI for this definition.
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38 | * If the URI is "antlib:org.apache.tools.ant",
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39 | * (this is the default uri)
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40 | * the uri will be set to "".
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41 | * URIs that start with "ant:" are reserved
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42 | * and are not allowed in this context.
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43 | * @param uri the namespace URI
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44 | * @throws BuildException if a reserved URI is used
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45 | */
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46 | public void setURI(String uri) throws BuildException {
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47 | if (uri.equals(ProjectHelper.ANT_CORE_URI)) {
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48 | uri = "";
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49 | }
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50 | if (uri.startsWith("ant:")) {
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51 | throw new BuildException("Attempt to use a reserved URI " + uri);
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52 | }
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53 | this.uri = uri;
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54 | }
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55 |
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56 | /**
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57 | * The URI for this definition.
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58 | * @return The URI for this defintion.
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59 | */
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60 | public String getURI() {
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61 | return uri;
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62 | }
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63 |
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64 | /**
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65 | * Set the class loader of the loading object
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66 | *
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67 | * @param classLoader a <code>ClassLoader</code> value
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68 | */
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69 | public void setAntlibClassLoader(ClassLoader classLoader) {
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70 | this.antlibClassLoader = classLoader;
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71 | }
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72 |
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73 | /**
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74 | * The current antlib classloader
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75 | * @return the antlib classloader for the definition, this
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76 | * is null if the definition is not used in an antlib.
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77 | */
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78 | public ClassLoader getAntlibClassLoader() {
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79 | return antlibClassLoader;
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80 | }
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81 | }
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