| /* |
| * 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. |
| */ |
| |
| /* $Id$ */ |
| |
| package org.apache.fop.render; |
| |
| import org.apache.avalon.framework.configuration.Configuration; |
| import org.apache.avalon.framework.configuration.ConfigurationException; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.fop.apps.FOUserAgent; |
| |
| /** |
| * Abstract base classes for renderer-related configurator classes. This class basically just |
| * provides an accessor to the specific renderer configuration object. |
| */ |
| public abstract class AbstractRendererConfigurator { |
| |
| /** logger instance */ |
| protected static Log log = LogFactory.getLog(AbstractRendererConfigurator.class); |
| |
| /** fop factory configuration */ |
| protected FOUserAgent userAgent = null; |
| |
| /** |
| * Default constructor |
| * @param userAgent user agent |
| */ |
| public AbstractRendererConfigurator(FOUserAgent userAgent) { |
| super(); |
| this.userAgent = userAgent; |
| } |
| |
| /** |
| * Returns the configuration subtree for a specific renderer. |
| * @param renderer the renderer |
| * @return the requested configuration subtree, null if there's no configuration |
| */ |
| protected Configuration getRendererConfig(Renderer renderer) { |
| String mimeType = renderer.getMimeType(); |
| if (mimeType == null) { |
| if (log.isInfoEnabled()) { |
| log.info("renderer mimeType is null"); |
| } |
| return null; |
| } |
| |
| return getRendererConfig(mimeType); |
| } |
| |
| /** |
| * Returns the configuration subtree for a specific renderer. |
| * @param mimeType the MIME type of the renderer |
| * @return the requested configuration subtree, null if there's no configuration |
| */ |
| private Configuration getRendererConfig(String mimeType) { |
| Configuration cfg = userAgent.getFactory().getUserConfig(); |
| if (cfg == null) { |
| if (log.isDebugEnabled()) { |
| log.debug("userconfig is null"); |
| } |
| return null; |
| } |
| |
| Configuration userRendererConfig = null; |
| |
| Configuration[] cfgs |
| = cfg.getChild("renderers").getChildren("renderer"); |
| for (int i = 0; i < cfgs.length; ++i) { |
| Configuration child = cfgs[i]; |
| try { |
| if (child.getAttribute("mime").equals(mimeType)) { |
| userRendererConfig = child; |
| break; |
| } |
| } catch (ConfigurationException e) { |
| // silently pass over configurations without mime type |
| } |
| } |
| log.debug((userRendererConfig == null ? "No u" : "U") |
| + "ser configuration found for MIME type " + mimeType); |
| return userRendererConfig; |
| } |
| } |