Author: jvanzyl
Date: Wed Sep 3 17:55:12 2008
New Revision: 691844
URL: http://svn.apache.org/viewvc?rev=691844&view=rev
Log:
[MSHADE-39] adding a resource transformer that can deal with META-INF/services
entries.
Added:
maven/plugins/trunk/maven-shade-plugin/src/main/java/org/apache/maven/plugins/shade/resource/ServicesResourceTransformer.java
(with props)
Added:
maven/plugins/trunk/maven-shade-plugin/src/main/java/org/apache/maven/plugins/shade/resource/ServicesResourceTransformer.java
URL:
http://svn.apache.org/viewvc/maven/plugins/trunk/maven-shade-plugin/src/main/java/org/apache/maven/plugins/shade/resource/ServicesResourceTransformer.java?rev=691844&view=auto
==============================================================================
---
maven/plugins/trunk/maven-shade-plugin/src/main/java/org/apache/maven/plugins/shade/resource/ServicesResourceTransformer.java
(added)
+++
maven/plugins/trunk/maven-shade-plugin/src/main/java/org/apache/maven/plugins/shade/resource/ServicesResourceTransformer.java
Wed Sep 3 17:55:12 2008
@@ -0,0 +1,95 @@
+package org.apache.maven.plugins.shade.resource;
+
+/*
+ * 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.
+ */
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.jar.JarEntry;
+import java.util.jar.JarOutputStream;
+
+import org.codehaus.plexus.util.IOUtil;
+import org.jdom.Content;
+
+/**
+ * Resources transformer that appends entries in META-INF/services resources
into
+ * a single resource. For example, if there are several
META-INF/services/org.apache.maven.project.ProjectBuilder
+ * resources spread across many JARs the individual entries will all be
concatenated into a single
+ * META-INF/services/org.apache.maven.project.ProjectBuilder resource packaged
into the resultant JAR produced
+ * by the shading process.
+ *
+ * @author jvanzyl
+ */
+public class ServicesResourceTransformer
+ implements ResourceTransformer
+{
+ private static final String SERVICES_PATH = "META-INF/services";
+
+ private ByteArrayOutputStream data;
+
+ private Map serviceEntries = new HashMap();
+
+ public boolean canTransformResource( String resource )
+ {
+ if ( resource.startsWith( SERVICES_PATH ) )
+ {
+ data = (ByteArrayOutputStream) serviceEntries.get( resource );
+
+ if ( data == null )
+ {
+ data = new ByteArrayOutputStream();
+ serviceEntries.put( resource, data );
+ }
+
+ return true;
+ }
+
+ return false;
+ }
+
+ public void processResource( InputStream is )
+ throws IOException
+ {
+ IOUtil.copy( is, data );
+ is.close();
+ }
+
+ public boolean hasTransformedResource()
+ {
+ return serviceEntries.size() > 0;
+ }
+
+ public void modifyOutputStream( JarOutputStream jos )
+ throws IOException
+ {
+ for ( Iterator i = serviceEntries.keySet().iterator(); i.hasNext(); )
+ {
+ String key = (String) i.next();
+ ByteArrayOutputStream data = (ByteArrayOutputStream)
serviceEntries.get( key );
+ jos.putNextEntry( new JarEntry( key ) );
+ IOUtil.copy( new ByteArrayInputStream( data.toByteArray() ), jos );
+ data.reset();
+ }
+ }
+}
Propchange:
maven/plugins/trunk/maven-shade-plugin/src/main/java/org/apache/maven/plugins/shade/resource/ServicesResourceTransformer.java
------------------------------------------------------------------------------
svn:eol-style = native
Propchange:
maven/plugins/trunk/maven-shade-plugin/src/main/java/org/apache/maven/plugins/shade/resource/ServicesResourceTransformer.java
------------------------------------------------------------------------------
svn:keywords = "Author Date Id Revision"
