Coverage report

  %line %branch
org.apache.commons.jelly.tags.sql.DataSourceUtil
0% 
0% 

 1  
 /*
 2  
  * Copyright 2002,2004 The Apache Software Foundation.
 3  
  *
 4  
  * Licensed under the Apache License, Version 2.0 (the "License");
 5  
  * you may not use this file except in compliance with the License.
 6  
  * You may obtain a copy of the License at
 7  
  *
 8  
  *      http://www.apache.org/licenses/LICENSE-2.0
 9  
  *
 10  
  * Unless required by applicable law or agreed to in writing, software
 11  
  * distributed under the License is distributed on an "AS IS" BASIS,
 12  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13  
  * See the License for the specific language governing permissions and
 14  
  * limitations under the License.
 15  
  */
 16  
 
 17  
 package org.apache.commons.jelly.tags.sql;
 18  
 
 19  
 import javax.sql.DataSource;
 20  
 import javax.naming.InitialContext;
 21  
 import javax.naming.Context;
 22  
 import javax.naming.NamingException;
 23  
 
 24  
 import org.apache.commons.jelly.JellyContext;
 25  
 import org.apache.commons.jelly.JellyTagException;
 26  
 import org.apache.commons.jelly.tags.Resources;
 27  
 
 28  
 import org.apache.commons.logging.Log;
 29  
 import org.apache.commons.logging.LogFactory;
 30  
 
 31  
 /**
 32  
  * <p>A simple <code>DataSource</code> utility for the standard
 33  
  * <code>DriverManager</code> class.
 34  
  *
 35  
  * TO DO: need to cache DataSource
 36  
  *
 37  
  * @author Justyna Horwat
 38  
  */
 39  0
 public class DataSourceUtil {
 40  
 
 41  
     private static final String ESCAPE = "\\";
 42  
     private static final String TOKEN = ",";
 43  
 
 44  
     /** The Log to which logging calls will be made. */
 45  0
     private static final Log log = LogFactory.getLog(DataSourceUtil.class);
 46  
 
 47  
     /**
 48  
      * If dataSource is a String first do JNDI lookup.
 49  
      * If lookup fails parse String like it was a set of JDBC parameters
 50  
      * Otherwise check to see if dataSource is a DataSource object and use as
 51  
      * is
 52  
      */
 53  
     static DataSource getDataSource(Object rawDataSource, JellyContext pc)
 54  
         throws JellyTagException {
 55  0
         DataSource dataSource = null;
 56  
 
 57  0
         if (rawDataSource == null) {
 58  0
             rawDataSource = pc.getVariable("org.apache.commons.jelly.sql.DataSource");
 59  
         }
 60  
 
 61  0
         if (rawDataSource == null) {
 62  0
             return null;
 63  
         }
 64  
 
 65  
         /*
 66  
         * If the 'dataSource' attribute's value resolves to a String
 67  
         * after rtexpr/EL evaluation, use the string as JNDI path to
 68  
         * a DataSource
 69  
         */
 70  0
         if (rawDataSource instanceof String) {
 71  
             try {
 72  0
                 Context ctx = new InitialContext();
 73  
                 // relative to standard JNDI root for J2EE app
 74  0
                 Context envCtx = (Context) ctx.lookup("java:comp/env");
 75  0
                 dataSource = (DataSource) envCtx.lookup((String) rawDataSource);
 76  0
             }
 77  
             catch (NamingException ex) {
 78  0
                 dataSource = getDataSource((String) rawDataSource);
 79  0
             }
 80  
         }
 81  0
         else if (rawDataSource instanceof DataSource) {
 82  0
             dataSource = (DataSource) rawDataSource;
 83  
         }
 84  
         else {
 85  0
             throw new JellyTagException(Resources.getMessage("SQL_DATASOURCE_INVALID_TYPE"));
 86  
         }
 87  
 
 88  0
         return dataSource;
 89  
     }
 90  
 
 91  
     /**
 92  
      * Parse JDBC parameters and setup dataSource appropriately
 93  
      */
 94  
     private static DataSource getDataSource(String params) throws JellyTagException {
 95  0
         DataSourceWrapper dataSource = new DataSourceWrapper();
 96  
 
 97  0
         String[] paramString = new String[4];
 98  0
         int escCount = 0;
 99  0
         int aryCount = 0;
 100  0
         int begin = 0;
 101  
 
 102  0
         for (int index = 0; index < params.length(); index++) {
 103  0
             char nextChar = params.class="keyword">charAt(index);
 104  0
             if (TOKEN.indexOf(nextChar) != -1) {
 105  0
                 if (escCount == 0) {
 106  0
                     paramString[aryCount] = params.substring(begin, index);
 107  0
                     begin = index + 1;
 108  0
                     if (++aryCount > 4) {
 109  0
                         throw new JellyTagException(Resources.getMessage("JDBC_PARAM_COUNT"));
 110  
                     }
 111  
                 }
 112  
             }
 113  0
             if (ESCAPE.indexOf(nextChar) != -1) {
 114  0
                 escCount++;
 115  
             }
 116  
             else {
 117  0
                 escCount = 0;
 118  
             }
 119  
         }
 120  0
         paramString[aryCount] = params.substring(begin);
 121  
 
 122  
         // use the JDBC URL from the parameter string
 123  0
         dataSource.setJdbcURL(paramString[0]);
 124  
 
 125  
         // try to load a driver if it's present
 126  0
         if (paramString[1] != null) {
 127  
             try {
 128  0
                 dataSource.setDriverClassName(paramString[1]);
 129  0
             }
 130  
             catch (Exception ex) {
 131  0
                 throw new JellyTagException(
 132  
                     Resources.getMessage("DRIVER_INVALID_CLASS", ex.getMessage()));
 133  
             }
 134  
         }
 135  
 
 136  
         // set the username and password
 137  0
         dataSource.setUserName(paramString[2]);
 138  0
         dataSource.setPassword(paramString[3]);
 139  
 
 140  0
         return dataSource;
 141  
     }
 142  
 
 143  
 }

This report is generated by jcoverage, Maven and Maven JCoverage Plugin.