1 files changed, 91 insertions, 0 deletions
diff --git a/src/java/org/apache/fop/render/AbstractRendererConfigurator.java b/src/java/org/apache/fop/render/AbstractRendererConfigurator.java
new file mode 100644
index 000000000..1e485735b
--- /dev/null
+++ b/src/java/org/apache/fop/render/AbstractRendererConfigurator.java
@@ -0,0 +1,91 @@
+/*
+ * 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) {
+        Configuration cfg = userAgent.getFactory().getUserConfig();
+        if (cfg == null) {
+            if (log.isDebugEnabled()) {
+                log.debug("userconfig is null");
+            }
+            return null;            
+        }
+    
+        String mimeType = renderer.getMimeType();
+        if (mimeType == null) {
+            if (log.isInfoEnabled()) {
+                log.info("renderer mimeType 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;
+    }
+}