From a7c1a39d8c3c4ef4d5878dbff726085082a17e8a Mon Sep 17 00:00:00 2001 From: lresende Date: Wed, 11 Nov 2009 23:09:31 +0000 Subject: Moving 2.x branches git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@835136 13f79535-47bb-0310-9956-ffa450edef68 --- .../equinox/EquinoxServiceDiscoverer.java | 338 --------------------- 1 file changed, 338 deletions(-) delete mode 100644 branches/sca-java-2.0-M3/modules/extensibility-equinox/src/main/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxServiceDiscoverer.java (limited to 'branches/sca-java-2.0-M3/modules/extensibility-equinox/src/main/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxServiceDiscoverer.java') diff --git a/branches/sca-java-2.0-M3/modules/extensibility-equinox/src/main/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxServiceDiscoverer.java b/branches/sca-java-2.0-M3/modules/extensibility-equinox/src/main/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxServiceDiscoverer.java deleted file mode 100644 index 930b308dfc..0000000000 --- a/branches/sca-java-2.0-M3/modules/extensibility-equinox/src/main/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxServiceDiscoverer.java +++ /dev/null @@ -1,338 +0,0 @@ -/* - * 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.extensibility.equinox; - -import java.io.BufferedReader; -import java.io.IOException; -import java.io.InputStream; -import java.io.InputStreamReader; -import java.net.URL; -import java.security.AccessController; -import java.security.PrivilegedAction; -import java.security.PrivilegedActionException; -import java.security.PrivilegedExceptionAction; -import java.util.Collection; -import java.util.Enumeration; -import java.util.HashMap; -import java.util.HashSet; -import java.util.Map; -import java.util.Properties; -import java.util.Set; -import java.util.StringTokenizer; -import java.util.logging.Level; -import java.util.logging.Logger; - -import org.apache.tuscany.sca.extensibility.ServiceDeclaration; -import org.apache.tuscany.sca.extensibility.ServiceDiscoverer; -import org.osgi.framework.Bundle; -import org.osgi.framework.BundleContext; -import org.osgi.framework.BundleException; -import org.osgi.framework.Constants; - -/** - * A ServiceDiscoverer that find META-INF/services/... in installed bundles - * - * @version $Rev$ $Date$ - */ -public class EquinoxServiceDiscoverer implements ServiceDiscoverer { - private static final Logger logger = Logger.getLogger(EquinoxServiceDiscoverer.class.getName()); - - private BundleContext context; - - public EquinoxServiceDiscoverer(BundleContext context) { - this.context = context; - } - - public static class ServiceDeclarationImpl implements ServiceDeclaration { - private Bundle bundle; - private URL url; - private String className; - private Class javaClass; - private Map attributes; - - public ServiceDeclarationImpl(Bundle bundle, URL url, String className, Map attributes) { - super(); - this.bundle = bundle; - this.url = url; - this.className = className; - this.attributes = attributes; - } - - public Map getAttributes() { - return attributes; - } - - public String getClassName() { - return className; - } - - public Class loadClass() throws ClassNotFoundException { - if (className == null) { - return null; - } - if (javaClass == null) { - javaClass = loadClass(className); - } - return javaClass; - } - - public Class loadClass(String className) throws ClassNotFoundException { - return bundle.loadClass(className); - } - - public URL getLocation() { - return url; - } - - public URL getResource(final String name) { - return AccessController.doPrivileged(new PrivilegedAction() { - public URL run() { - return bundle.getResource(name); - } - }); - } - - @Override - public String toString() { - StringBuffer sb = new StringBuffer(); - sb.append("Bundle: ").append(EquinoxServiceDiscoverer.toString(bundle)); - sb.append(" Resource: ").append(url); - sb.append(" Attributes: ").append(attributes); - return sb.toString(); - } - - public Bundle getBundle() { - return bundle; - } - - } - - /** - * Empty static method to trigger the activation of this bundle. - */ - public static void init() { - } - - private static String toString(Bundle b) { - StringBuffer sb = new StringBuffer(); - sb.append(b.getBundleId()).append(" ").append(b.getSymbolicName()); - int s = b.getState(); - if ((s & Bundle.UNINSTALLED) != 0) { - sb.append(" UNINSTALLED"); - } - if ((s & Bundle.INSTALLED) != 0) { - sb.append(" INSTALLED"); - } - if ((s & Bundle.RESOLVED) != 0) { - sb.append(" RESOLVED"); - } - if ((s & Bundle.STARTING) != 0) { - sb.append(" STARTING"); - } - if ((s & Bundle.STOPPING) != 0) { - sb.append(" STOPPING"); - } - if ((s & Bundle.ACTIVE) != 0) { - sb.append(" ACTIVE"); - } - return sb.toString(); - - } - - /** - * 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 - */ - private static Map parseServiceDeclaration(String declaration) { - Map attributes = new HashMap(); - int index = declaration.indexOf(';'); - if (index != -1) { - attributes.put("class", declaration.substring(0, index).trim()); - declaration = declaration.substring(index); - } else { - int j = declaration.indexOf('='); - if (j == -1) { - attributes.put("class", declaration.trim()); - return attributes; - } else { - declaration = ";" + declaration; - } - } - StringTokenizer tokens = new StringTokenizer(declaration); - for (; tokens.hasMoreTokens();) { - String key = tokens.nextToken("=").substring(1).trim(); - if (key == null) - break; - String value = tokens.nextToken(",").substring(1).trim(); - if (value == null) - break; - attributes.put(key, value); - } - return attributes; - } - - public ServiceDeclaration getServiceDeclaration(String name) throws IOException { - Collection declarations = getServiceDeclarations(name); - if (declarations.isEmpty()) { - return null; - } else { - return declarations.iterator().next(); - } - } - - public Collection getServiceDeclarations(String serviceName) throws IOException { - boolean debug = logger.isLoggable(Level.FINE); - Collection descriptors = new HashSet(); - - // http://java.sun.com/j2se/1.5.0/docs/api/javax/xml/xpath/XPathFactory.html - boolean isPropertyFile = "javax.xml.xpath.XPathFactory".equals(serviceName); - serviceName = "META-INF/services/" + serviceName; - - Set visited = new HashSet(); - for (Bundle bundle : context.getBundles()) { - if (bundle.getBundleId() == 0 || bundle.getHeaders().get(Constants.FRAGMENT_HOST) != null) { - // Skip system bundle as it has access to the application classloader - // Skip bundle fragments too - continue; - } - Enumeration urls = null; - try { - // Use getResources to find resources on the classpath of the bundle - // Please note there are cases that getResources will return null even - // the bundle containing such entries: - // 1. There is a match on Import-Package or DynamicImport-Package, and another - // bundle exports the resource package, there is a possiblity that it doesn't - // find the containing entry - // 2. The bundle cannot be resolved, then getResources will return null - urls = bundle.getResources(serviceName); - if (urls == null) { - URL entry = bundle.getEntry(serviceName); - if (entry != null) { - logger.warning("Unresolved resource " + serviceName + " found in " + toString(bundle)); - try { - bundle.start(); - } catch (BundleException e) { - logger.log(Level.SEVERE, e.getMessage(), e); - } - // urls = Collections.enumeration(Arrays.asList(entry)); - } - } - } catch (IOException e) { - logger.log(Level.SEVERE, e.getMessage(), e); - } - if (urls == null) { - continue; - } - while (urls.hasMoreElements()) { - final URL url = urls.nextElement(); - - if (!visited.add(url)) { - // The URL has already been processed - continue; - } - - if (debug) { - logger.fine("Reading service provider file: " + url.toExternalForm()); - } - try { - // Allow privileged access to open URL stream. Add FilePermission to added to security - // policy file. - InputStream is; - try { - is = AccessController.doPrivileged(new PrivilegedExceptionAction() { - public InputStream run() throws IOException { - return url.openStream(); - } - }); - } catch (PrivilegedActionException e) { - throw (IOException)e.getException(); - } - if (isPropertyFile) { - // Load as a property file - Properties props = new Properties(); - props.load(is); - is.close(); - for (Map.Entry e : props.entrySet()) { - Map attributes = new HashMap(); - String key = (String)e.getKey(); - String value = (String)e.getValue(); - // Unfortunately, the xalan file only has the classname - if ("".equals(value)) { - value = key; - key = ""; - } - if (!"".equals(key)) { - attributes.put(key, value); - attributes.put("uri", key); - } - attributes.put("class", value); - ServiceDeclarationImpl descriptor = new ServiceDeclarationImpl(bundle, url, value, attributes); - descriptors.add(descriptor); - } - continue; - } - BufferedReader reader = null; - try { - reader = new BufferedReader(new InputStreamReader(is)); - int count = 0; - while (true) { - String line = reader.readLine(); - if (line == null) - break; - line = line.trim(); - if (!line.startsWith("#") && !"".equals(line)) { - String reg = line.trim(); - if (debug) { - logger.fine("Registering service provider: " + reg); - } - - Map attributes = parseServiceDeclaration(reg); - String className = attributes.get("class"); - if (className == null) { - // Add a unique class name to prevent equals() from returning true - className = "_class_" + count; - count++; - } - ServiceDeclarationImpl descriptor = - new ServiceDeclarationImpl(bundle, url, className, attributes); - descriptors.add(descriptor); - } - } - } finally { - if (reader != null) { - try { - reader.close(); - } catch (IOException e) { - // Ignore - } - } - } - } catch (IOException e) { - logger.log(Level.SEVERE, e.getMessage(), e); - } - } - } - return descriptors; - } - -} -- cgit v1.2.3