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MONDRIAN: Added embedding mondrian documentation
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| <html> | ||
| <!-- | ||
| == $Id$ | ||
| == This software is subject to the terms of the Common Public License | ||
| == Agreement, available at the following URL: | ||
| == http://www.opensource.org/licenses/cpl.html. | ||
| == Copyright (C) 2005-2006 Julian Hyde | ||
| == All Rights Reserved. | ||
| == You must accept the terms of that agreement to use this software. | ||
| --> | ||
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| <head> | ||
| <link rel="stylesheet" type="text/css" href="stylesheet.css"/> | ||
| <title>Pentaho Analysis Services: Embedding Mondrian</title> | ||
| </head> | ||
| <body> | ||
| <!-- doc2web start --> | ||
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| <!-- page title --> | ||
| <div class="contentheading">Embedding Mondrian in a Java Application</div> | ||
| <!-- end page title --> | ||
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| <p>By Will Gorman; last updated April, 2007.</p> | ||
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| <hr noshade size="1"> | ||
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| <p>This document shows a simple example of embedding mondrian in a java application. The steps include downloading Mondrian, installing a database, writing a simple application, compiling the application, and running the application. </p> | ||
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| <h2>Setting up the Environment<a name="setting_up_the_environment"> </a></h2> | ||
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| <p>First, you need to download mondrian. You can get the latest release | ||
| from SourceForge.</p> | ||
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| <h3>Download the Latest Release<a name="Download_the_latest_source_release"> </a></h3> | ||
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| <p>Download the latest <code>mondrian-<i>version</i>.zip</code> from <a href="http://sourceforge.net/projects/mondrian"> | ||
| SourceForge</a>, and unzip. Now find the <code>mondrian-<i>version</i>-src.zip</code> | ||
| inside this distribution, and unzip it within the mondrian binary distribution under the "src" directory.</p> | ||
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| <h2>Installing the Database<a name="installing_the_database"> </a></h2> | ||
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| <p>Before you run this simple example, you must | ||
| install the standard FoodMart dataset. This is described in the | ||
| <a href="install.html#2_Set_up_test_data">installation guide</a>.</p> | ||
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| <h2>The Source Code<a name="the_source_code"> </a></h2> | ||
| <p>Here is a simple example of embedding mondrian in a java class. A connection is retrieved, a query is generated and finally the query is executed. Open the file SimpleEmbeddedExample.java in the main Mondrian directory and paste the contents below.</p> | ||
| <blockquote> | ||
| <code> | ||
| import mondrian.olap.*;<br> | ||
| import java.io.*;<br> | ||
| <br> | ||
| public class SimpleEmbeddedExample {<br> | ||
| <br> | ||
| public static void main(String args[]) {<br> | ||
| <br> | ||
| // First, set up a valid connection string<br> | ||
| String connStr = "Provider=mondrian;" +<br> | ||
| "Catalog=demo/FoodMart.xml;" +<br> | ||
| "JdbcDrivers=com.mysql.jdbc.Driver;" +<br> | ||
| "Jdbc=jdbc:mysql://localhost/foodmart?user=foodmart&password=foodmart;" +<br> | ||
| "jdbcUser=foodmart;" +<br> | ||
| "jdbcPassword=foodmart";<br> | ||
| <br> | ||
| // Second, set up a valid query string<br> | ||
| String queryStr = "select " +<br> | ||
| "{[Measures].[Unit Sales]} on columns, " +<br> | ||
| "{[Store].[All Stores]} on rows " +<br> | ||
| "from [Sales]";<br> | ||
| <br> | ||
| // Third, retrieve a connection from the DriveManager<br> | ||
| Connection connection = DriverManager.getConnection(connStr, null, true);<br> | ||
| <br> | ||
| // Fourth, generate a MDX Query object<br> | ||
| Query query = connection.parseQuery(queryStr);<br> | ||
| <br> | ||
| // Fifth, execute the query<br> | ||
| Result result = connection.execute(query);<br> | ||
| <br> | ||
| // Finally, print out the result<br> | ||
| StringWriter sw = new StringWriter();<br> | ||
| PrintWriter pw = new PrintWriter(sw);<br> | ||
| result.print(pw);<br> | ||
| pw.flush();<br> | ||
| System.out.println(sw.toString());<br> | ||
| }<br> | ||
| <br> | ||
| }<br> | ||
| <br> | ||
| </code> | ||
| </blockquote> | ||
| <p>Note that you should replace the specific jdbc information with your own JDBC connection properties.</p> | ||
| <h2>Compiling the Example <a name="compiling_the_example"> </a></h2> | ||
| <p>To compile this example via the command line:</p> | ||
| <blockquote> | ||
| <code> | ||
| javac -cp "lib/mondrian.jar" SimpleEmbeddedExample.java | ||
| </code> | ||
| </blockquote> | ||
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| <h2>Running the Example <a name="compiling the example"> </a></h2> | ||
| <p>Below is the java command line that will execute the SimpleEmbeddedExample class. Note that you must replace $JDBC_DRIVER_JAR_LOCATION with the correct path to your specific JDBC driver.</p> | ||
| <blockquote> | ||
| <code> | ||
| java -cp ".:src/lib/log4j-1.2.9.jar:src/lib/commons-dbcp.jar:src/lib/commons-pool.jar:src/lib/commons-collections.jar<br> | ||
| :src/lib/commons-vfs.jar:src/lib/commons-logging.jar:src/lib/commons-math-1.0.jar:src/lib/javacup.jar<br> | ||
| :src/lib/eigenbase-resgen.jar:src/lib/eigenbase-properties.jar:src/lib/eigenbase-xom.jar:lib/mondrian.jar<br> | ||
| :$JDBC_DRIVER_JAR_LOCATION" SimpleEmbeddedExample | ||
| </code> | ||
| </blockquote> | ||
| <p> You should see this output:</p> | ||
| <blockquote> | ||
| <code> | ||
| log4j:WARN No appenders could be found for logger (mondrian.olap.MondrianProperties).<br> | ||
| log4j:WARN Please initialize the log4j system properly.<br> | ||
| Axis #0:<br> | ||
| {}<br> | ||
| Axis #1:<br> | ||
| {[Measures].[Unit Sales]}<br> | ||
| Axis #2:<br> | ||
| {[Store].[All Stores]}<br> | ||
| Row #0: 266,773<br> | ||
| </code> | ||
| </blockquote> | ||
| <p>View <a href="api/mondrian/olap/Result.html">Mondrian's API</a> for more details on traversing the Result object.</p> | ||
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| <hr noshade size="1"/> | ||
| <p> | ||
| Author: Will Gorman; last updated April, 2007.<br/> | ||
| Version: $Id$ | ||
| (<a href="http://p4web.eigenbase.org/open/mondrian/doc/embedding_mondrian.html?ac=1">log </a>)<br/> | ||
| Copyright (C) 2005-2006 Julian Hyde | ||
| </p> | ||
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| <br /> | ||
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| <!-- doc2web end --> | ||
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| </body> | ||
| </html> |