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org.apache.commons.jelly.tags.jetty.AbstractMethodHandlerTag |
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1 | /* |
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2 | * Copyright 2002,2004 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 | ||
17 | package org.apache.commons.jelly.tags.jetty; |
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18 | ||
19 | import org.apache.commons.jelly.JellyTagException; |
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20 | import org.apache.commons.jelly.TagSupport; |
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21 | import org.apache.commons.jelly.XMLOutput; |
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22 | ||
23 | /** |
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24 | * An abstract base tag to declare a handler for a particular request method |
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25 | * in an http context in an http server |
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26 | * |
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27 | * @author rtl |
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28 | * @version $Id: AbstractMethodHandlerTag.java,v 1.3 2002/07/14 12:38:22 dion Exp $ |
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29 | */ |
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30 | 5 | abstract public class AbstractMethodHandlerTag extends TagSupport { |
31 | ||
32 | /** Override this to return the name of the http method handled by this tag */ |
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33 | abstract public String getMethodHandled(); |
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34 | ||
35 | /** |
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36 | * Perform the tag functionality. In this case, add a http method handler |
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37 | * to the parent that invokes the script in the body of this tag when |
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38 | * processing an http request |
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39 | * |
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40 | * @param xmlOutput where to send output |
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41 | * @throws Exception when an error occurs |
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42 | */ |
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43 | public void doTag(XMLOutput xmlOutput) throws JellyTagException { |
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44 | 2 | JellyResourceHandlerTag parentTag = |
45 | (JellyResourceHandlerTag) findAncestorWithClass( |
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46 | JellyResourceHandlerTag.class); |
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47 | ||
48 | 2 | if ( parentTag == null ) { |
49 | 0 | throw new JellyTagException( "<" + getMethodHandled().toLowerCase() + |
50 | "Request> tag must be enclosed inside a <jellyResourceHandler> tag" ); |
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51 | } |
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52 | ||
53 | // register this tag with the http handler for the appropriate method |
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54 | 2 | parentTag.getJellyResourceHttpHandler().registerTag(this, getMethodHandled()); |
55 | ||
56 | // NOTE - don't invokeBody here as we only want to do it during a request |
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57 | 2 | } |
58 | ||
59 | } |
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60 |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |