| /* |
| * Copyright 1999-2004 The Apache Software Foundation. |
| * |
| * Licensed 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.cocoon.components.modules.input; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| import org.apache.avalon.framework.configuration.Configurable; |
| import org.apache.avalon.framework.configuration.Configuration; |
| import org.apache.avalon.framework.configuration.ConfigurationException; |
| import org.apache.avalon.framework.service.ServiceException; |
| import org.apache.avalon.framework.service.ServiceManager; |
| import org.apache.avalon.framework.service.Serviceable; |
| import org.apache.avalon.framework.thread.ThreadSafe; |
| import org.apache.excalibur.source.Source; |
| import org.apache.excalibur.source.SourceResolver; |
| |
| /** |
| * Input module for accessing properties in a properties file. |
| * |
| * <p> |
| * The properties file can only be configured statically and |
| * is resolved via the SourceResolver system. |
| * </p> |
| * |
| */ |
| public class PropertiesFileModule extends AbstractJXPathModule |
| implements InputModule, Serviceable, Configurable, ThreadSafe { |
| |
| private ServiceManager m_manager; |
| private SourceResolver m_resolver; |
| private Properties m_properties; |
| |
| |
| /* (non-Javadoc) |
| * @see Serviceable#service(ServiceManager) |
| */ |
| public void service(ServiceManager manager) throws ServiceException { |
| m_manager = manager; |
| m_resolver = (SourceResolver) m_manager.lookup(SourceResolver.ROLE); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.avalon.framework.activity.Disposable#dispose() |
| */ |
| public void dispose() { |
| super.dispose(); |
| if (this.m_manager != null) { |
| this.m_manager.release(this.m_resolver); |
| this.m_manager = null; |
| this.m_resolver = null; |
| } |
| } |
| |
| /** |
| * Configure the location of the properties file: |
| * <p> |
| * <code><file src="resource://my.properties" /></code> |
| * </p> |
| */ |
| public void configure(Configuration configuration) throws ConfigurationException { |
| super.configure(configuration); |
| String file = configuration.getChild("file").getAttribute("src"); |
| load(file); |
| } |
| |
| private void load(String file) throws ConfigurationException { |
| Source source = null; |
| InputStream stream = null; |
| try { |
| source = m_resolver.resolveURI(file); |
| stream = source.getInputStream(); |
| m_properties = new Properties(); |
| m_properties.load(stream); |
| } catch (IOException e) { |
| throw new ConfigurationException("Cannot load properties file " + file); |
| } finally { |
| if (source != null) { |
| m_resolver.release(source); |
| } |
| if (stream != null) { |
| try { |
| stream.close(); |
| } catch (IOException ignored) { |
| } |
| } |
| } |
| } |
| |
| protected Object getContextObject(Configuration modeConf, Map objectModel) |
| throws ConfigurationException { |
| |
| return m_properties; |
| } |
| } |