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package org.hisp.dhis.security.authority;
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* Copyright (c) 2004-2007, University of Oslo
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of the HISP project nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.Enumeration;
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import java.util.HashSet;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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* @author Torgeir Lorange Ostby
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* @version $Id: FileSystemAuthoritiesProvider.java 3160 2007-03-24 20:15:06Z torgeilo $
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public class FileSystemAuthoritiesProvider
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implements SystemAuthoritiesProvider
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private static final Log LOG = LogFactory.getLog( FileSystemAuthoritiesProvider.class );
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// -------------------------------------------------------------------------
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// -------------------------------------------------------------------------
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private String authoritiesFilePath;
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public void setAuthoritiesFilePath( String authoritiesFilePath )
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this.authoritiesFilePath = authoritiesFilePath;
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// -------------------------------------------------------------------------
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// Load authorities from all files matching authoritiesFilePath.
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// -------------------------------------------------------------------------
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public Collection<String> loadAuthorities()
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if ( authoritiesFilePath == null )
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throw new IllegalStateException( "Authorities file path not specified" );
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ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
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Enumeration<URL> resources = classLoader.getResources( authoritiesFilePath );
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if ( !resources.hasMoreElements() )
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LOG.warn( "No resources found for path: '" + authoritiesFilePath + "'" );
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return Collections.emptySet();
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HashSet<String> systemAuthorities = new HashSet<String>();
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while ( resources.hasMoreElements() )
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InputStream in = resources.nextElement().openStream();
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BufferedReader reader = new BufferedReader( new InputStreamReader( in ) );
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while ( (line = reader.readLine()) != null )
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if ( line.length() > 0 )
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systemAuthorities.add( line );
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return systemAuthorities;
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// -------------------------------------------------------------------------
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// SystemAuthoritiesProvider implementation
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// -------------------------------------------------------------------------
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public Collection<String> getSystemAuthorities()
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return loadAuthorities();
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catch ( IOException e )
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LOG.error( "Failed to load authorities files", e );
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return Collections.emptySet();