sigil/org.cauldron.bld.core/src/org/cauldron/bld/core/repository/SystemRepositoryProvider.java

/*
 * 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.cauldron.bld.core.repository;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

import org.cauldron.sigil.repository.IBundleRepository;
import org.cauldron.sigil.repository.IRepositoryProvider;
import org.cauldron.sigil.repository.RepositoryException;
import org.eclipse.core.runtime.Path;

public class SystemRepositoryProvider implements IRepositoryProvider {

	public IBundleRepository createRepository(String id, Properties properties)
			throws RepositoryException {
		String fw = properties.getProperty("framework");
		Path frameworkPath = fw == null ? null : new Path(fw);
		String extraPkgs = properties.getProperty("packages");
		String profile = properties.getProperty("profile");
		
		try {
			Properties p = readProfile(profile);
    		String pkgs = p.getProperty("org.osgi.framework.system.packages") + "," + extraPkgs;
			return new SystemRepository(id, frameworkPath, pkgs);
		} catch (IOException e) {
			throw new RepositoryException("Failed to load profile", e);
		}
	}
	
	public static Properties readProfile(String name) throws IOException {
		if (name == null) {
			String version = System.getProperty("java.specification.version");
			String[] split = version.split("\\.");
			String prefix = ("6".compareTo(split[1]) <= 0) ? "JavaSE-" : "J2SE-";
			name = prefix + version;
		}
		
		String profilePath = "profiles/" + name + ".profile";
		InputStream in = SystemRepositoryProvider.class.getClassLoader().getResourceAsStream(profilePath);
		
		if (in == null)
			throw new IOException("No such profile: " + profilePath);
		
		Properties p = new Properties();
		p.load(in);
		
		return p;
	}
	
}