Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
ServletContextResolver |
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| 1.6666666666666667;1.667 |
1 | /* |
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2 | * |
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3 | * Copyright 2005-2006 The Apache Software Foundation. |
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4 | * |
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5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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6 | * you may not use this file except in compliance with the License. |
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7 | * You may obtain a copy of the License at |
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8 | * |
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9 | * http://www.apache.org/licenses/LICENSE-2.0 |
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10 | * |
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11 | * Unless required by applicable law or agreed to in writing, software |
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12 | * distributed under the License is distributed on an "AS IS" BASIS, |
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13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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14 | * See the License for the specific language governing permissions and |
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15 | * limitations under the License. |
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16 | * |
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17 | */ |
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18 | package org.apache.commons.scxml.env.servlet; |
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19 | ||
20 | import javax.servlet.ServletContext; |
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21 | ||
22 | import org.apache.commons.scxml.PathResolver; |
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23 | ||
24 | /** |
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25 | * A wrapper around ServletContext that implements PathResolver. |
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26 | * |
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27 | * @see org.apache.commons.scxml.PathResolver |
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28 | */ |
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29 | public class ServletContextResolver implements PathResolver { |
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30 | ||
31 | /** Cannot accept a null ServletContext, it will just throw |
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32 | * NullPointerException down the road. */ |
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33 | private static final String ERR_SERVLET_CTX_NULL = |
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34 | "ServletContextResolver cannot be instantiated with a null" |
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35 | + " ServletContext"; |
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36 | ||
37 | /** The SevletContext we will use to resolve paths. */ |
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38 | 1 | private ServletContext ctx = null; |
39 | ||
40 | /** |
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41 | * Constructor. |
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42 | * |
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43 | * @param ctx The ServletContext instance for this web application. |
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44 | */ |
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45 | 1 | public ServletContextResolver(final ServletContext ctx) { |
46 | 1 | if (ctx == null) { |
47 | 1 | throw new IllegalArgumentException(ERR_SERVLET_CTX_NULL); |
48 | } |
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49 | 0 | this.ctx = ctx; |
50 | 0 | } |
51 | ||
52 | /** |
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53 | * Delegates to the underlying ServletContext's getRealPath(String). |
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54 | * |
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55 | * @param ctxPath context sensitive path, can be a relative URL |
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56 | * @return resolved path (an absolute URL) or <code>null</code> |
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57 | * @see org.apache.commons.scxml.PathResolver#resolvePath(java.lang.String) |
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58 | */ |
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59 | public String resolvePath(final String ctxPath) { |
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60 | 0 | return ctx.getRealPath(ctxPath); |
61 | } |
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62 | ||
63 | /** |
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64 | * Retrieve the PathResolver rooted at the given path. |
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65 | * |
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66 | * @param ctxPath context sensitive path, can be a relative URL |
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67 | * @return returns a new resolver rooted at ctxPath |
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68 | * @see org.apache.commons.scxml.PathResolver#getResolver(java.lang.String) |
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69 | */ |
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70 | public PathResolver getResolver(final String ctxPath) { |
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71 | 0 | return this; |
72 | } |
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73 | ||
74 | } |
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75 |