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/*
* 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.tuscany.sca.contribution.util;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;
public class ServiceConfigurationUtil {
/**
* Read the service name from a configuration file
*
* @param classLoader
* @param name The name of the service class
* @return A class name which extends/implements the service class
* @throws IOException
*/
public static List<String> getServiceClassNames(ClassLoader classLoader, String name) throws IOException {
List<String> classNames = new ArrayList<String>();
for (URL url: Collections.list(classLoader.getResources("META-INF/services/" + name))) {
InputStream is = url.openStream();
BufferedReader reader = null;
try {
reader = new BufferedReader(new InputStreamReader(is));
while (true) {
String line = reader.readLine();
if (line == null)
break;
line = line.trim();
if (!line.startsWith("#") && !"".equals(line)) {
classNames.add(line.trim());
}
}
} finally {
if (reader != null)
reader.close();
if (is != null) {
try {
is.close();
} catch (IOException ioe) {}
}
}
}
return classNames;
}
/**
* Parse a service declaration in the form class;attr=value,attr=value and
* return a map of attributes
*
* @param declaration
* @return a map of attributes
*/
public static Map<String, String> parseServiceDeclaration(String declaration) {
Map<String, String> attributes = new HashMap<String, String>();
StringTokenizer tokens = new StringTokenizer(declaration);
String className = tokens.nextToken(";");
if (className != null)
attributes.put("class", className);
for (; tokens.hasMoreTokens(); ) {
String key = tokens.nextToken("=").substring(1);
if (key == null)
break;
String value = tokens.nextToken(",").substring(1);
if (value == null)
break;
attributes.put(key, value);
}
return attributes;
}
}
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