/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.felix.bundleplugin;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;
import java.util.regex.Pattern;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import aQute.bnd.osgi.Analyzer;
import aQute.bnd.osgi.Descriptors.PackageRef;
import aQute.bnd.osgi.Jar;
import aQute.bnd.osgi.Processor;
import aQute.bnd.osgi.Resource;
import aQute.bnd.service.AnalyzerPlugin;
import aQute.libg.generics.Create;
import org.apache.felix.utils.manifest.Attribute;
import org.apache.felix.utils.manifest.Clause;
import org.osgi.framework.Constants;
import static org.apache.felix.utils.manifest.Parser.parseHeader;
public class ScrPlugin implements AnalyzerPlugin
{
Transformer transformer;
public ScrPlugin() throws Exception
{
transformer = getTransformer( getClass().getResource( "scr.xsl" ) );
}
public boolean analyzeJar( Analyzer analyzer ) throws Exception
{
Set<String> headers = Create.set();
String bpHeader = analyzer.getProperty( "Service-Component" );
Map<String, ? extends Map<String, String>> map = Processor.parseHeader( bpHeader, null );
for ( String root : map.keySet() )
{
Resource resource = analyzer.getJar().getResource(root);
if ( resource != null ) {
process(analyzer, root, resource, headers);
}
}
// Group and analyze
for ( String str : headers )
{
int idx = str.indexOf( ':' );
if ( idx < 0 )
{
analyzer.warning( ( new StringBuilder( "Error analyzing services in scr resource: " ) ).append( str ).toString() );
continue;
}
String h = str.substring( 0, idx ).trim();
String v = str.substring( idx + 1 ).trim();
StringBuilder sb = new StringBuilder();
String header = analyzer.getProperty( h );
if (header != null && !header.isEmpty())
{
sb.append(header);
sb.append(",");
}
sb.append( v );
analyzer.setProperty(h, sb.toString());
}
return false;
}
private void process( Analyzer analyzer, String path, Resource resource, Set<String> headers )
{
InputStream in = null;
try
{
in = resource.openInputStream();
// Retrieve headers
Set<String> set = analyze( in );
headers.addAll( set );
}
catch ( Exception e )
{
analyzer.error( ( new StringBuilder( "Unexpected exception in processing scr resources(" ) )
.append( path ).append( "): " ).append( e ).toString() );
}
finally
{
try
{
if ( in != null )
{
in.close();
}
}
catch ( IOException e )
{
}
}
}
public Set<String> analyze( InputStream in ) throws Exception
{
Set<String> refers = new HashSet<String>();
ByteArrayOutputStream bout = new ByteArrayOutputStream();
javax.xml.transform.Result r = new StreamResult( bout );
javax.xml.transform.Source s = new StreamSource( in );
transformer.transform( s, r );
ByteArrayInputStream bin = new ByteArrayInputStream( bout.toByteArray() );
bout.close();
BufferedReader br = new BufferedReader( new InputStreamReader( bin ) );
for ( String line = br.readLine(); line != null; line = br.readLine() )
{
line = line.trim();
if ( line.length() > 0 )
{
refers.add( line );
}
}
br.close();
return refers;
}
protected Transformer getTransformer( URL url ) throws Exception
{
TransformerFactory tf = TransformerFactory.newInstance();
javax.xml.transform.Source source = new StreamSource( url.openStream() );
return tf.newTransformer( source );
}
}