Source Code Cross Referenced for WordCountPlugin.java in  » Blogger-System » blojsom-3.1 » org » blojsom » plugin » statistics » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Blogger System » blojsom 3.1 » org.blojsom.plugin.statistics 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * Copyright (c) 2003-2007, David A. Czarnecki
003:         * All rights reserved.
004:         *
005:         * Redistribution and use in source and binary forms, with or without
006:         * modification, are permitted provided that the following conditions are met:
007:         *
008:         * Redistributions of source code must retain the above copyright notice, this list of conditions and the
009:         *     following disclaimer.
010:         * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
011:         *     following disclaimer in the documentation and/or other materials provided with the distribution.
012:         * Neither the name of "David A. Czarnecki" and "blojsom" nor the names of its contributors may be used to
013:         *     endorse or promote products derived from this software without specific prior written permission.
014:         * Products derived from this software may not be called "blojsom", nor may "blojsom" appear in their name,
015:         *     without prior written permission of David A. Czarnecki.
016:         *
017:         * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
018:         * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
019:         * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
020:         * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
021:         * EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
022:         * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
023:         * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
024:         * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
025:         * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
026:         * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
027:         * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
028:         * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
029:         * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
030:         */package org.blojsom.plugin.statistics;
031:
032:        import org.blojsom.blog.Blog;
033:        import org.blojsom.blog.Entry;
034:        import org.blojsom.plugin.Plugin;
035:        import org.blojsom.plugin.PluginException;
036:        import org.blojsom.util.BlojsomUtils;
037:
038:        import javax.servlet.http.HttpServletRequest;
039:        import javax.servlet.http.HttpServletResponse;
040:        import java.util.Map;
041:        import java.util.StringTokenizer;
042:
043:        /**
044:         * Word Count plugin.
045:         *
046:         * @author David Czarnecki
047:         * @since blojsom 3.0
048:         * @version $Id: WordCountPlugin.java,v 1.2 2007/01/17 02:35:14 czarneckid Exp $
049:         */
050:        public class WordCountPlugin implements  Plugin {
051:
052:            public static final String WORD_COUNT_PLUGIN_HELPER = "WORD_COUNT_PLUGIN_HELPER";
053:            public static final String BLOJSOM_PLUGIN_WORD_COUNT_METADATA = "blojsom-plugin-word-count";
054:
055:            /**
056:             * Default constructor.
057:             */
058:            public WordCountPlugin() {
059:            }
060:
061:            /**
062:             * Initialize this plugin. This method only called when the plugin is instantiated.
063:             *
064:             * @param servletConfig        Servlet config object for the plugin to retrieve any initialization parameters
065:             * @param blojsomConfiguration {@link org.blojsom.blog.BlojsomConfiguration} information
066:             * @throws org.blojsom.plugin.PluginException
067:             *          If there is an error initializing the plugin
068:             */
069:            public void init() throws PluginException {
070:            }
071:
072:            /**
073:             * Process the blog entries
074:             *
075:             * @param httpServletRequest  Request
076:             * @param httpServletResponse Response
077:             * @param blog                {@link Blog} instance
078:             * @param context             Context
079:             * @param entries             Blog entries retrieved for the particular request
080:             * @return Modified set of blog entries
081:             * @throws PluginException If there is an error processing the blog entries
082:             */
083:            public Entry[] process(HttpServletRequest httpServletRequest,
084:                    HttpServletResponse httpServletResponse, Blog blog,
085:                    Map context, Entry[] entries) throws PluginException {
086:                for (int i = 0; i < entries.length; i++) {
087:                    Entry entry = entries[i];
088:                    Map entryMetaData = entry.getMetaData();
089:
090:                    if (entry.getDescription() == null) {
091:                        entryMetaData.put(BLOJSOM_PLUGIN_WORD_COUNT_METADATA,
092:                                new Integer(0));
093:                    } else {
094:                        String entryWithoutTags = entry.getDescription();
095:                        entryWithoutTags = entryWithoutTags.replaceAll(
096:                                "\\<.*?\\>", "");
097:                        StringTokenizer tokenizer = new StringTokenizer(
098:                                entryWithoutTags);
099:                        entryMetaData.put(BLOJSOM_PLUGIN_WORD_COUNT_METADATA,
100:                                new Integer(tokenizer.countTokens()));
101:                    }
102:
103:                    entry.setMetaData(entryMetaData);
104:                }
105:
106:                context.put(WORD_COUNT_PLUGIN_HELPER, new WordCountHelper());
107:
108:                return entries;
109:            }
110:
111:            /**
112:             * Perform any cleanup for the plugin. Called after {@link #process}.
113:             *
114:             * @throws org.blojsom.plugin.PluginException
115:             *          If there is an error performing cleanup for this plugin
116:             */
117:            public void cleanup() throws PluginException {
118:            }
119:
120:            /**
121:             * Called when BlojsomServlet is taken out of service
122:             *
123:             * @throws org.blojsom.plugin.PluginException
124:             *          If there is an error in finalizing this plugin
125:             */
126:            public void destroy() throws PluginException {
127:            }
128:
129:            /**
130:             * Class to handle word count for text in templates
131:             */
132:            public class WordCountHelper {
133:
134:                /**
135:                 * Count the number of words in a piece of text
136:                 *
137:                 * @param text Text
138:                 * @return # of words in text, 0 if text is <code>null</code> or blank
139:                 */
140:                public Integer countWords(String text) {
141:                    if (BlojsomUtils.checkNullOrBlank(text)) {
142:                        return new Integer(0);
143:                    } else {
144:                        String textWithoutTokens = text.replaceAll("\\<.*?\\>",
145:                                "");
146:                        StringTokenizer tokenizer = new StringTokenizer(
147:                                textWithoutTokens);
148:
149:                        return new Integer(tokenizer.countTokens());
150:                    }
151:                }
152:            }
153:        }
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