Examples of org.apache.commons.collections.ExtendedProperties

org.apache.commons.collections.ExtendedProperties
This class extends normal Java properties by adding the possibility to use the same key many times concatenating the value strings instead of overwriting them.
The Extended Properties syntax is explained here:
- Each property has the syntax key = value
- The key may use any character but the equal sign '='.
- value may be separated on different lines if a backslash is placed at the end of the line that continues below.
- If value is a list of strings, each token is separated by a comma ','.
- Commas in each token are escaped placing a backslash right before the comma.
- If a key is used more than once, the values are appended like if they were on the same line separated with commas.
- Blank lines and lines starting with character '#' are skipped.
- If a property is named "include" (or whatever is defined by setInclude() and getInclude() and the value of that property is the full path to a file on disk, that file will be included into the ConfigurationsRepository. You can also pull in files relative to the parent configuration file. So if you have something like the following: include = additional.properties Then "additional.properties" is expected to be in the same directory as the parent configuration file. Duplicate name values will be replaced, so be careful.
Here is an example of a valid extended properties file:
```
 # lines starting with # are comments # This is the simplest property key = value # A long property may be separated on multiple lines longvalue = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa # This is a property with many tokens tokens_on_a_line = first token, second token # This sequence generates exactly the same result tokens_on_multiple_lines = first token tokens_on_multiple_lines = second token # commas may be escaped in tokens commas.excaped = Hi\, what'up? 
```
NOTE: this class has not been written for performance nor low memory usage. In fact, it's way slower than it could be and generates too much memory garbage. But since performance is not an issue during intialization (and there is not much time to improve it), I wrote it this way. If you don't like it, go ahead and tune it up! @author Stefano Mazzocchi @author Jon S. Stevens @author Dave Bryson @author Jason van Zyl @author Geir Magnusson Jr. @author Leon Messerschmidt @author Kent Johnson @author Daniel Rall @author Ilkka Priha @version $Id: ExtendedProperties.java,v 1.4 2001/05/13 21:46:22 geirm Exp $

    /**
     * Add all properties contained in the file fileName to the RuntimeInstance properties
     */
    public void setProperties(String fileName)
    {
        ExtendedProperties props = null;
        try
        {
              props = new ExtendedProperties(fileName);
        } 
        catch (IOException e)
        {
              throw new VelocityException("Error reading properties from '" 
                + fileName + "'", e);
        }
        
        Enumeration en = props.keys();
        while (en.hasMoreElements())
        {
            String key = en.nextElement().toString();
            setProperty(key, props.get(key));
        }
    }

View Full Code Here

     */
    public void addProperty(String key, Object value)
    {
        if (overridingProperties == null)
        {
            overridingProperties = new ExtendedProperties();
        }


        overridingProperties.addProperty(key, value);
    }

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     */
    public void init(String configurationFile)
    {
        try
        {
            setProperties(new ExtendedProperties(configurationFile));
        } 
        catch (IOException e)
        {
            throw new VelocityException("Error reading properties from '" 
                + configurationFile + "'", e);

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     * @param c Configuration object to convert
     * @return ExtendedProperties created from the Configuration
     */
    public static ExtendedProperties getExtendedProperties(Configuration c)
    {
        ExtendedProperties props = new ExtendedProperties();
        for (Iterator i = c.getKeys() ; i.hasNext() ;)
        {
            String key = (String) i.next();
            props.setProperty(key, c.getProperty(key));
        }
        return props;
    }

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        Vector vec = new Vector();
        vec.add("item 1");
        vec.add("item 2");
        config.setProperty("vector", vec);


        ExtendedProperties ep = ConfigurationConverter
                .getExtendedProperties(config);




        assertEquals("This returns 'teststring'", ep.getString("string"),
                "teststring");
        Vector v = ep.getVector("vector");
        assertEquals("This returns 'item 1'", (String) v.get(0), "item 1");
        assertEquals("This returns 123", ep.getInt("int"), 123);


        Configuration c = ConfigurationConverter.getConfiguration(ep);




        assertEquals("This returns 'teststring'", c.getString("string"),

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    public void testPathTranslation()
        throws Exception
    {
        Configuration conf = vs.getConfiguration();
        ExtendedProperties ep = ((TurbineVelocityService) vs).createVelocityProperties(conf);


        String rootPath = Turbine.getRealPath("");


        String [] test1 = ep.getStringArray("test1.resource.loader.path");
        assertEquals("No Test1 Property found", 1, test1.length);
        assertEquals("Test1 Path translation failed", rootPath
                +fileSeperator+"relative"+fileSeperator+"path" , test1[0]);


        String [] test2 = ep.getStringArray("test2.resource.loader.path");
        assertEquals("No Test2 Property found", 1, test2.length);
        assertEquals("Test2 Path translation failed", rootPath
                +fileSeperator+"absolute"+fileSeperator+"path" , test2[0]);


        String [] test3 = ep.getStringArray("test3.resource.loader.path");
        assertEquals("No Test3 Property found", 1, test2.length);
        assertEquals("Test3 Path translation failed", rootPath
                +fileSeperator+"jar-file.jar!/", test3[0]);


        String [] test4 = ep.getStringArray("test4.resource.loader.path");
        assertEquals("No Test4 Property found", 1, test4.length);
        assertEquals("Test4 Path translation failed", rootPath
                +fileSeperator+"jar-file.jar!/with/some/extensions" , test4[0]);


        String [] test5 = ep.getStringArray("test5.resource.loader.path");
        assertEquals("No Test5 Property found", 1, test5.length);
        assertEquals("Test5 Path translation failed", rootPath
                +fileSeperator+"jar-file.jar" , test5[0]);


        String [] test6 = ep.getStringArray("test6.resource.loader.path");
        assertEquals("No Test6 Property found", 1, test6.length);
        assertEquals("Test6 Path translation failed", "jar:http://jar.on.website/" , test6[0]);


        String [] test7 = ep.getStringArray("test7.resource.loader.path");
        assertEquals("No Test7 Property found", 1, test7.length);
        assertEquals("Test7 Path translation failed", rootPath
                +fileSeperator+"file"+fileSeperator
                +"system"+fileSeperator+"reference" , test7[0]);


        String [] test8 = ep.getStringArray("test8.resource.loader.path");
        assertEquals("No Test8 Property found", 1, test8.length);
        assertEquals("Test8 Path translation failed", "http://reference.on.website/" , test8[0]);


    }

View Full Code Here

        try
        {
            if ( velocityPropertiesFile.exists() )
            {
                String file = velocityPropertiesFile.getAbsolutePath();
                ExtendedProperties config = new ExtendedProperties(file);
                ve.setExtendedProperties(config);
            }


            // override the templatePath if it exists
            if (templatePath != null && templatePath.length() > 0)

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        {
            /**
             * Resource loader can be loaded either via class name or be passed
             * in as an instance.
             */
            ExtendedProperties configuration = (ExtendedProperties) it.next();


            String loaderClass = StringUtils.nullTrim(configuration.getString("class"));
            ResourceLoader loaderInstance = (ResourceLoader) configuration.get("instance");


            if (loaderInstance != null)
            {
                resourceLoader = loaderInstance;
            }
            else if (loaderClass != null)
            {
                resourceLoader = ResourceLoaderFactory.getLoader(rsvc, loaderClass);
            }
            else
            {
                log.error("Unable to find '" +
                          configuration.getString(RESOURCE_LOADER_IDENTIFIER) +
                          ".resource.loader.class' specification in configuration." +
                          " This is a critical value.  Please adjust configuration.");


                continue; // for(...
            }

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             */
            String loaderName = (String) it.next();
            StringBuffer loaderID = new StringBuffer(loaderName);
            loaderID.append(".").append(RuntimeConstants.RESOURCE_LOADER);


            ExtendedProperties loaderConfiguration = 
            rsvc.getConfiguration().subset(loaderID.toString());


            /*
             *  we can't really count on ExtendedProperties to give us an empty set
             */


            if (loaderConfiguration == null)
            {
                log.warn("ResourceManager : No configuration information for resource loader named '" +
                         loaderName + "'. Skipping.");


                continue;
            }


            /*
             *  add the loader name token to the initializer if we need it
             *  for reference later. We can't count on the user to fill
             *  in the 'name' field
             */


            loaderConfiguration.setProperty(RESOURCE_LOADER_IDENTIFIER, loaderName);


            /*
             * Add resources to the list of resource loader
             * initializers.
             */

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     */
    public void setProperty(String key, Object value)
    {
        if (overridingProperties == null)
        {
            overridingProperties = new ExtendedProperties();
        }


        overridingProperties.setProperty(key, value);
    }

View Full Code Here

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