| /* |
| * 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.sling.settings.impl; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.PrintWriter; |
| import java.net.URL; |
| import java.util.Dictionary; |
| import java.util.Hashtable; |
| import java.util.Iterator; |
| import java.util.Properties; |
| import java.util.SortedSet; |
| import java.util.TreeSet; |
| |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Constants; |
| import org.osgi.framework.ServiceRegistration; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * This is a configuration printer for the web console which |
| * prints out the Sling properties from Launchpad if available. |
| * |
| */ |
| public class SlingPropertiesPrinter { |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger(SlingPropertiesPrinter.class); |
| |
| private static ServiceRegistration propertiesPlugin; |
| |
| public static void initPlugin(final BundleContext bundleContext) { |
| // if the properties are available, we register the sling properties plugin |
| final String propUrl = bundleContext.getProperty("sling.properties.url"); |
| if ( propUrl != null ) { |
| // try to read properties |
| Properties props = null; |
| try { |
| final URL url = new URL(propUrl); |
| final InputStream is = url.openStream(); |
| final Properties tmp = new Properties(); |
| tmp.load(is); |
| // update props |
| for(final Object key : tmp.keySet()) { |
| final Object value = bundleContext.getProperty(key.toString()); |
| if ( value != null ) { |
| tmp.put(key, value); |
| } |
| } |
| props = tmp; |
| |
| } catch (IOException ioe) { |
| LOGGER.warn("Unable to read sling properties from " + propUrl, ioe); |
| } |
| if ( props != null ) { |
| final SlingPropertiesPrinter propertiesPrinter = new SlingPropertiesPrinter(props); |
| final Dictionary<String, String> serviceProps = new Hashtable<String, String>(); |
| serviceProps.put(Constants.SERVICE_DESCRIPTION, |
| "Apache Sling Sling Properties Configuration Printer"); |
| serviceProps.put(Constants.SERVICE_VENDOR, "The Apache Software Foundation"); |
| serviceProps.put("felix.webconsole.label", "slingprops"); |
| serviceProps.put("felix.webconsole.title", "Sling Properties"); |
| serviceProps.put("felix.webconsole.configprinter.modes", "always"); |
| |
| propertiesPlugin = bundleContext.registerService(SlingPropertiesPrinter.class.getName(), |
| propertiesPrinter, |
| serviceProps); |
| } |
| } |
| } |
| |
| public static void destroyPlugin() { |
| if ( propertiesPlugin != null) { |
| propertiesPlugin.unregister(); |
| propertiesPlugin = null; |
| } |
| } |
| |
| private static String HEADLINE = "Apache Sling Launchpad Properties"; |
| |
| private final Properties props; |
| |
| public SlingPropertiesPrinter(final Properties props) { |
| this.props = props; |
| } |
| |
| /** |
| * Print out the servlet filter chains. |
| * @see org.apache.felix.webconsole.ConfigurationPrinter#printConfiguration(java.io.PrintWriter) |
| */ |
| public void printConfiguration(PrintWriter pw) { |
| pw.println(HEADLINE); |
| pw.println(); |
| SortedSet<Object> keys = new TreeSet<Object>( props.keySet() ); |
| for ( Iterator<Object> ki = keys.iterator(); ki.hasNext(); ) { |
| final Object key = ki.next(); |
| pw.print( key ); |
| pw.print(" = "); |
| final Object value = props.get(key); |
| if ( value != null ) { |
| pw.print(value.toString()); |
| } |
| pw.println(); |
| } |
| } |
| |
| /** |
| * @see org.apache.felix.webconsole.ModeAwareConfigurationPrinter#printConfiguration(java.io.PrintWriter, java.lang.String) |
| */ |
| public void printConfiguration(PrintWriter printWriter, String mode) { |
| if ( ! "zip".equals(mode) ) { |
| this.printConfiguration(printWriter); |
| } else { |
| // write into byte array first |
| String contents = null; |
| try { |
| final ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| this.props.store(baos , HEADLINE); |
| contents = baos.toString("8859_1"); |
| } catch (IOException ioe) { |
| // if something goes wrong here we default to text output |
| this.printConfiguration(printWriter); |
| return; |
| } |
| printWriter.write(contents); |
| } |
| } |
| } |