diff options
Diffstat (limited to 'java/sca/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/FrameworkLauncher.java')
| -rw-r--r-- | java/sca/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/FrameworkLauncher.java | 254 |
1 files changed, 0 insertions, 254 deletions
diff --git a/java/sca/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/FrameworkLauncher.java b/java/sca/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/FrameworkLauncher.java deleted file mode 100644 index 414f3aae63..0000000000 --- a/java/sca/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/FrameworkLauncher.java +++ /dev/null @@ -1,254 +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.node.equinox.launcher; - -import java.io.BufferedReader; -import java.io.IOException; -import java.io.InputStream; -import java.io.InputStreamReader; -import java.util.HashMap; -import java.util.Hashtable; -import java.util.Map; -import java.util.Properties; -import java.util.logging.Level; -import java.util.logging.Logger; - -import org.eclipse.osgi.framework.console.CommandProvider; -import org.osgi.framework.BundleActivator; -import org.osgi.framework.BundleContext; -import org.osgi.framework.launch.Framework; -import org.osgi.framework.launch.FrameworkFactory; - -/** - * Launcher for the OSGi framework using the framework launch APIs - */ -public class FrameworkLauncher implements BundleActivator { - private static final String FACTORY_RESOURCE = "META-INF/services/" + FrameworkFactory.class.getName(); - - private static final Logger logger = Logger.getLogger(FrameworkLauncher.class.getName()); - - private FrameworkFactory factory; - private boolean isEquinox; - - @SuppressWarnings("unchecked") - private synchronized FrameworkFactory loadFrameworkFactory() { - if (factory == null) { - try { - ClassLoader classLoader = FrameworkFactory.class.getClassLoader(); - InputStream is = classLoader.getResourceAsStream(FACTORY_RESOURCE); - if (is == null) { - classLoader = Thread.currentThread().getContextClassLoader(); - is = classLoader.getResourceAsStream(FACTORY_RESOURCE); - } - if (is == null) { - return null; - } - BufferedReader reader = null; - String line = null; - try { - reader = new BufferedReader(new InputStreamReader(is, "UTF-8")); - while (true) { - line = reader.readLine(); - if (line == null) - break; - line = line.trim(); - if (!line.startsWith("#") && !"".equals(line)) { - break; - } - } - } finally { - if (reader != null) { - try { - reader.close(); - } catch (IOException e) { - // Ignore - } - } - } - if (line != null) { - Class<? extends FrameworkFactory> factoryImplClass = - (Class<? extends FrameworkFactory>)Class.forName(line, false, classLoader); - factory = factoryImplClass.newInstance(); - if (factory != null && factory.getClass().getName().startsWith("org.eclipse.osgi.")) { - isEquinox = true; - } - - } - } catch (Throwable e) { - logger.log(Level.SEVERE, e.getMessage(), e); - } - } - return factory; - } - - public Framework newFramework(Map properties) { - FrameworkFactory factory = loadFrameworkFactory(); - if (factory == null) { - return null; - } - String propertyFile = null; - String factoryName = factory.getClass().getName(); - if (factoryName.startsWith("org.eclipse.osgi.")) { - propertyFile = "equinox.properties"; - } else if (factoryName.startsWith("org.apache.felix.")) { - propertyFile = "felix.properties"; - } - Map propMap = new HashMap(); - if (propertyFile != null) { - InputStream is = getClass().getResourceAsStream(propertyFile); - if (is != null) { - Properties props = new Properties(); - try { - props.load(is); - } catch (IOException e) { - logger.log(Level.WARNING, e.getMessage(), e); - } - propMap.putAll(props); - } - } - propMap.putAll(properties); - return factory.newFramework(propMap); - } - - public boolean isEquinox() { - return isEquinox; - } - - public void start(BundleContext context) throws Exception { - EquinoxHost.injectedBundleContext = context; - if (context.getClass().getName().startsWith("org.eclipse.osgi.")) { - isEquinox = true; - try { - context.registerService(CommandProvider.class.getName(), new NodeLauncherCommand(), new Hashtable()); - } catch (NoClassDefFoundError e) { - // Ignore it - } - } - } - - public void stop(BundleContext context) throws Exception { - EquinoxHost.injectedBundleContext = null; - } - - private static final String DELIM_START = "${"; - private static final String DELIM_STOP = "}"; - - /** - * <p> - * This method performs property variable substitution on the - * specified value. If the specified value contains the syntax - * <tt>${<prop-name>}</tt>, where <tt><prop-name></tt> - * refers to either a configuration property or a system property, - * then the corresponding property value is substituted for the variable - * placeholder. Multiple variable placeholders may exist in the - * specified value as well as nested variable placeholders, which - * are substituted from inner most to outer most. Configuration - * properties override system properties. - * </p> - * @param val The string on which to perform property substitution. - * @param currentKey The key of the property being evaluated used to - * detect cycles. - * @param cycleMap Map of variable references used to detect nested cycles. - * @param configProps Set of configuration properties. - * @return The value of the specified string after system property substitution. - * @throws IllegalArgumentException If there was a syntax error in the - * property placeholder syntax or a recursive variable reference. - **/ - public static String substVars(String val, String currentKey, Map cycleMap, Properties configProps) - throws IllegalArgumentException { - // If there is currently no cycle map, then create - // one for detecting cycles for this invocation. - if (cycleMap == null) { - cycleMap = new HashMap(); - } - - // Put the current key in the cycle map. - cycleMap.put(currentKey, currentKey); - - // Assume we have a value that is something like: - // "leading ${foo.${bar}} middle ${baz} trailing" - - // Find the first ending '}' variable delimiter, which - // will correspond to the first deepest nested variable - // placeholder. - int stopDelim = val.indexOf(DELIM_STOP); - - // Find the matching starting "${" variable delimiter - // by looping until we find a start delimiter that is - // greater than the stop delimiter we have found. - int startDelim = val.indexOf(DELIM_START); - while (stopDelim >= 0) { - int idx = val.indexOf(DELIM_START, startDelim + DELIM_START.length()); - if ((idx < 0) || (idx > stopDelim)) { - break; - } else if (idx < stopDelim) { - startDelim = idx; - } - } - - // If we do not have a start or stop delimiter, then just - // return the existing value. - if ((startDelim < 0) && (stopDelim < 0)) { - return val; - } - // At this point, we found a stop delimiter without a start, - // so throw an exception. - else if (((startDelim < 0) || (startDelim > stopDelim)) && (stopDelim >= 0)) { - throw new IllegalArgumentException("stop delimiter with no start delimiter: " + val); - } - - // At this point, we have found a variable placeholder so - // we must perform a variable substitution on it. - // Using the start and stop delimiter indices, extract - // the first, deepest nested variable placeholder. - String variable = val.substring(startDelim + DELIM_START.length(), stopDelim); - - // Verify that this is not a recursive variable reference. - if (cycleMap.get(variable) != null) { - throw new IllegalArgumentException("recursive variable reference: " + variable); - } - - // Get the value of the deepest nested variable placeholder. - // Try to configuration properties first. - String substValue = (configProps != null) ? configProps.getProperty(variable, null) : null; - if (substValue == null) { - // Ignore unknown property values. - substValue = System.getProperty(variable, ""); - } - - // Remove the found variable from the cycle map, since - // it may appear more than once in the value and we don't - // want such situations to appear as a recursive reference. - cycleMap.remove(variable); - - // Append the leading characters, the substituted value of - // the variable, and the trailing characters to get the new - // value. - val = val.substring(0, startDelim) + substValue + val.substring(stopDelim + DELIM_STOP.length(), val.length()); - - // Now perform substitution again, since there could still - // be substitutions to make. - val = substVars(val, currentKey, cycleMap, configProps); - - // Return the value. - return val; - } - -} |