akarasulu 2003/11/06 15:53:06
Modified: repository/spi/src/java/org/apache/avalon/repository
InitialRepositoryFactory.java
Added: repository/spi/src/java/org/apache/avalon/repository
ArtifactDatabase.java ArtifactDatabaseImpl.java
Log:
Check pointing some new classes for supporting artifact
attributes obtained from a repository database.
Revision Changes Path
1.4 +17 -12
avalon-sandbox/repository/spi/src/java/org/apache/avalon/repository/InitialRepositoryFactory.java
Index: InitialRepositoryFactory.java
===================================================================
RCS file:
/home/cvs/avalon-sandbox/repository/spi/src/java/org/apache/avalon/repository/InitialRepositoryFactory.java,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -r1.3 -r1.4
--- InitialRepositoryFactory.java 6 Nov 2003 06:31:10 -0000 1.3
+++ InitialRepositoryFactory.java 6 Nov 2003 23:53:06 -0000 1.4
@@ -78,6 +78,8 @@
*/
public class InitialRepositoryFactory implements RepositoryFactory
{
+ /** the artifact name of the default repostory factory implemenation jar */
+ public static final String DEFAULT_IMPL = "repository-impl" ;
/** base property key for the urls of the required jars */
public static final String URLS_BASE = "url" ;
/** factory delegate implementation class name key */
@@ -103,8 +105,21 @@
*
* @throws RepositoryException
*/
- public InitialRepositoryFactory() throws RepositoryException
+ public InitialRepositoryFactory( String a_implementation, String a_version )
+ throws RepositoryException
{
+ /*
+ * Gets the implementation's dependency descriptor from the repository
+ * and generate a set of properties for it.
+ */
+ // Get the api jar's build descriptor - this class is in the jar
+ JarBuildDescriptor l_myBuild = JarBuildDescriptor.getJarBuildDescriptor(
+ InitialRepositoryFactory.class.getClassLoader() ) ;
+ JarDescriptor l_myJar = l_myBuild.getJarDescriptor() ;
+ ArtifactDescriptor l_implDesc = new ArtifactDescriptor( l_myBuild
+ .getJarDescriptor().getGroup(), a_implementation, "properties",
+ a_version ) ;
+
/*
* Create the temporary directory to pull down files into
*/
@@ -115,16 +130,6 @@
l_tmpDir.mkdirs() ;
}
- JarBuildDescriptor l_myBuild = JarBuildDescriptor.getJarBuildDescriptor(
- InitialRepositoryFactory.class.getClassLoader() ) ;
-
- /*
- * Now we want to figure out what implementation we are going to use
- * and instantiate the appropriate factory for that implementation.
- *
- * Use our descriptor to access the appropriate release catelog for the
- * entire group.
- */
/*
1.1
avalon-sandbox/repository/spi/src/java/org/apache/avalon/repository/ArtifactDatabase.java
Index: ArtifactDatabase.java
===================================================================
/*
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999-2002 The Apache Software Foundation. All rights reserved.
Redistribution and use in source and binary forms, with or without modifica-
tion, 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 "Jakarta", "Apache Avalon", "Avalon Framework" and
"Apache Software Foundation" must not be used to endorse or promote
products derived from this software without prior written
permission. For written permission, please contact [EMAIL PROTECTED]
5. Products derived from this software may not be called "Apache", 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 (INCLU-
DING, 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.avalon.repository ;
import javax.naming.directory.Attributes ;
/**
* Manages relational information associated with artifact attributes within the
* repository presuming some attributes can be multivalued while others are
* single valued.
*
* @author <a href="mailto:[EMAIL PROTECTED]">Alex Karasulu</a>
* @author $Author: akarasulu $
* @version $Revision: 1.1 $
*/
public interface ArtifactDatabase
{
Attributes getArtifactAttributes( ArtifactDescriptor a_descriptor )
throws RepositoryException ;
}
1.1
avalon-sandbox/repository/spi/src/java/org/apache/avalon/repository/ArtifactDatabaseImpl.java
Index: ArtifactDatabaseImpl.java
===================================================================
/*
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999-2002 The Apache Software Foundation. All rights reserved.
Redistribution and use in source and binary forms, with or without modifica-
tion, 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 "Jakarta", "Apache Avalon", "Avalon Framework" and
"Apache Software Foundation" must not be used to endorse or promote
products derived from this software without prior written
permission. For written permission, please contact [EMAIL PROTECTED]
5. Products derived from this software may not be called "Apache", 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 (INCLU-
DING, 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.avalon.repository ;
import java.net.MalformedURLException;
import java.net.URL ;
import java.io.IOException ;
import java.io.InputStream ;
import java.util.HashMap;
import java.util.Properties ;
import java.util.Enumeration ;
import javax.naming.directory.Attributes ;
import javax.naming.directory.BasicAttributes ;
/**
*
* @author <a href="mailto:[EMAIL PROTECTED]">Alex Karasulu</a>
* @author $Author: akarasulu $
* @version $Revision: 1.1 $
*/
public class ArtifactDatabaseImpl implements ArtifactDatabase
{
/** the base url of the remote repository */
private final String m_remoteRepoBase ;
/** not used but we can cache properties rather than dl everytime */
private final HashMap m_artifactAttributeCache = new HashMap() ;
/**
* Creates an artifact database for a remote repository.
*
* @param a_remoteRepoBase the base url of the remote repository
*/
public ArtifactDatabaseImpl( String a_remoteRepoBase )
{
m_remoteRepoBase = a_remoteRepoBase ;
}
/**
* @see org.apache.avalon.repository.ArtifactDatabase#
* getArtifactAttributes(org.apache.avalon.repository.ArtifactDescriptor)
*/
public Attributes getArtifactAttributes( ArtifactDescriptor a_descriptor )
throws RepositoryException
{
URL l_url = null ;
Attributes l_attrs = null ;
try
{
l_url = new URL( a_descriptor.getUrl( m_remoteRepoBase ) ) ;
l_attrs = getAsAttributes( getProperties( l_url ) ) ;
}
catch ( MalformedURLException e )
{
throw new RepositoryException( "Bad URL for artifact: "
+ a_descriptor.getSpecification(), e ) ;
}
catch ( IOException e )
{
throw new RepositoryException( "Failed to access properties file: "
+ l_url.toString(), e ) ;
}
return l_attrs ;
}
public static Attributes getAsAttributes( Properties a_props )
{
Attributes l_attrs = new BasicAttributes( false ) ;
Enumeration l_list = a_props.propertyNames() ;
while ( l_list.hasMoreElements() )
{
String l_key = ( String ) l_list.nextElement() ;
if ( isEnumerated( l_key ) )
{
String l_keyBase = getEnumeratedBase( l_key ) ;
l_attrs.put( l_keyBase, a_props.getProperty( l_key ) ) ;
}
l_attrs.put( l_key, a_props.getProperty( l_key ) ) ;
}
return l_attrs ;
}
/**
* Gets the Properties in a remote properties file.
*
* @param a_url the url to the properties file
* @return the loaded properties for the file
* @throws IOException if there is any problem loading the properties
*/
public static Properties getProperties( URL a_url ) throws IOException
{
InputStream l_in = null ;
Properties l_props = new Properties() ;
l_in = a_url.openStream() ;
l_props.load( l_in ) ;
if ( l_in != null )
{
l_in.close() ;
}
return l_props ;
}
/**
* Detects whether or not a property key is of the multivalued enumeration
* kind. A multivalued key simply enumerates values by appending a '.' and
* a number after the dot: i.e. artifact.dependency.2 and artifact.alias.23
* et. cetera.
*
* @param a_key the property name or key
* @return true if the property conforms to the enumerated property
* convention, false otherwise
*/
public static boolean isEnumerated( String a_key )
{
int l_lastDot = a_key.lastIndexOf( '.' ) ;
String l_lastComponent = null ;
if ( -1 == l_lastDot )
{
return false ;
}
l_lastComponent = a_key.substring( l_lastDot + 1 ) ;
try
{
Integer.parseInt( l_lastComponent ) ;
}
catch ( NumberFormatException e )
{
return false ;
}
return true ;
}
/**
* Gets the key base of an enumerated property using the multivalued
* property key naming convention.
*
* @param a_key the enumerated key whose last name component is a number
* @return the base name of the enumerated property
*/
public static String getEnumeratedBase( String a_key )
{
int l_lastDot = a_key.lastIndexOf( '.' ) ;
String l_base = null ;
if ( -1 == l_lastDot )
{
return a_key ;
}
return a_key.substring( 0, l_lastDot ) ;
}
}
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