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Posted to scm@geronimo.apache.org by jd...@apache.org on 2003/08/12 20:25:21 UTC
cvs commit: incubator-geronimo/modules/twiddle/src/java/org/apache/geronimo/twiddle/config ConfigurationReader.java
jdillon 2003/08/12 11:25:21
Added: modules/twiddle/src/java/org/apache/geronimo/twiddle/config
ConfigurationReader.java
Log:
o To allow the module to build until I can get the rest of the
sources ready to commit
Revision Changes Path
1.1 incubator-geronimo/modules/twiddle/src/java/org/apache/geronimo/twiddle/config/ConfigurationReader.java
Index: ConfigurationReader.java
===================================================================
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Apache Maven" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Apache Maven", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* ====================================================================
*/
package org.apache.geronimo.twiddle.config;
import java.io.File;
import java.io.IOException;
import java.io.Reader;
import java.io.FileReader;
import java.io.InputStreamReader;
import java.io.BufferedReader;
import java.net.URL;
import org.exolab.castor.xml.Unmarshaller;
import org.exolab.castor.xml.MarshalException;
import org.apache.geronimo.common.Strings;
/**
* Creates <code>Configuration</code> objects.
*
* @version <code>$Id: ConfigurationReader.java,v 1.1 2003/08/12 18:25:21 jdillon Exp $</code>
* @author <a href="mailto:jason@planet57.com">Jason Dillon</a>
*/
public class ConfigurationReader
{
/** The Castor unmarshaller used to tranform XML->Objects */
protected Unmarshaller unmarshaller;
/**
* Construct a <code>ConfigurationReader</code>.
*/
public ConfigurationReader()
{
unmarshaller = new Unmarshaller(Configuration.class);
}
/**
* Read a configuration instance from a URL.
*
* @param url The URL to read the configuration from.
* @return The configuration instance.
*
* @throws Exception Failed to read configuration.
*/
public Configuration read(final URL url) throws Exception
{
return doRead(new BufferedReader(new InputStreamReader(url.openStream())));
}
/**
* Read a configuration instance from a string URL specification.
*
* @param urlspec The URL specification.
* @return The configuration instance.
*
* @throws Exception Failed to read configuration.
*/
public Configuration read(final String urlspec) throws Exception
{
return read(Strings.toURL(urlspec));
}
/**
* Read a configuration instance from a file.
*
* @param file The file to read the configuration from.
* @return The configuration instance.
*
* @throws Exception Failed to read configuration.
*/
public Configuration read(final File file) throws Exception
{
return doRead(new FileReader(file));
}
/**
* Read a configuration instance from a reader.
*
* @param reader The reader to read the configuration from.
* @return The configuration instance.
*
* @throws Exception Failed to read configuration.
*/
public Configuration read(final Reader reader) throws Exception
{
return (Configuration)unmarshaller.unmarshal(reader);
}
/**
* Read a configuration instance from a reader and handle closing the
* reader after the read operation.
*
* @param reader The reader to read the configuration from.
* @return The configuration instance.
*
* @throws Exception Failed to read configuration.
*/
protected Configuration doRead(final Reader reader) throws Exception
{
Configuration config = null;
try {
config = read(reader);
}
finally {
reader.close();
}
return config;
}
}