| /* |
| * 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.forrest.locationmap.lm; |
| |
| import java.util.Map; |
| |
| import org.apache.avalon.framework.configuration.Configuration; |
| import org.apache.avalon.framework.configuration.ConfigurationException; |
| import org.apache.avalon.framework.service.ServiceManager; |
| import org.apache.cocoon.components.treeprocessor.InvokeContext; |
| import org.apache.cocoon.components.treeprocessor.variables.VariableResolver; |
| import org.apache.cocoon.components.treeprocessor.variables.VariableResolverFactory; |
| import org.apache.cocoon.sitemap.PatternException; |
| |
| /** |
| * locationmap leaf statement identifying a location. |
| * |
| * <p> |
| * The <code><location></code> element has one |
| * required attribute <code>src</code> that contains the |
| * location string. |
| * </p> |
| */ |
| public class LocationNode extends AbstractNode { |
| |
| private final LocatorNode m_ln; |
| |
| // the resolvable location source |
| private VariableResolver m_src; |
| |
| public LocationNode(final LocatorNode ln, final ServiceManager manager) { |
| super(manager); |
| m_ln = ln; |
| } |
| |
| public void build(final Configuration configuration) throws ConfigurationException { |
| try { |
| m_src = VariableResolverFactory.getResolver( |
| configuration.getAttribute("src"), super.m_manager); |
| } catch (PatternException e) { |
| final String message = "Illegal pattern syntax at for location attribute 'src'" + |
| " at " + configuration.getLocation(); |
| throw new ConfigurationException(message,e); |
| } |
| } |
| |
| /** |
| * Resolve the location string against the InvokeContext. |
| */ |
| public String locate(Map om, InvokeContext context) throws Exception { |
| return m_src.resolve(context, om); |
| } |
| |
| } |