| /** |
| * 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.camel.component.fop; |
| |
| import java.io.InputStream; |
| |
| import org.apache.avalon.framework.configuration.Configuration; |
| import org.apache.avalon.framework.configuration.DefaultConfigurationBuilder; |
| import org.apache.camel.Consumer; |
| import org.apache.camel.Processor; |
| import org.apache.camel.Producer; |
| import org.apache.camel.impl.DefaultEndpoint; |
| import org.apache.camel.spi.Metadata; |
| import org.apache.camel.spi.UriEndpoint; |
| import org.apache.camel.spi.UriParam; |
| import org.apache.camel.spi.UriPath; |
| import org.apache.camel.util.ResourceHelper; |
| import org.apache.fop.apps.FopFactory; |
| |
| /** |
| * The fop component allows you to render a message into different output formats using Apache FOP. |
| */ |
| @UriEndpoint(scheme = "fop", title = "FOP", syntax = "fop:outputType", producerOnly = true, label = "transformation") |
| public class FopEndpoint extends DefaultEndpoint { |
| |
| @UriPath @Metadata(required = "true") |
| private FopOutputType outputType; |
| @UriParam |
| private String userConfigURL; |
| @UriParam |
| private FopFactory fopFactory; |
| |
| public FopEndpoint(String uri, FopComponent component, FopOutputType outputType) { |
| super(uri, component); |
| this.outputType = outputType; |
| } |
| |
| public Producer createProducer() throws Exception { |
| return new FopProducer(this, fopFactory, outputType.getFormatExtended()); |
| } |
| |
| public Consumer createConsumer(Processor processor) throws Exception { |
| throw new UnsupportedOperationException("Consumer not supported for FOP endpoint"); |
| } |
| |
| public boolean isSingleton() { |
| return true; |
| } |
| |
| public FopOutputType getOutputType() { |
| return outputType; |
| } |
| |
| /** |
| * The primary output format is PDF but other output formats are also supported. |
| */ |
| public void setOutputType(FopOutputType outputType) { |
| this.outputType = outputType; |
| } |
| |
| public String getUserConfigURL() { |
| return userConfigURL; |
| } |
| |
| /** |
| * The location of a configuration file which can be loaded from classpath or file system. |
| */ |
| public void setUserConfigURL(String userConfigURL) { |
| this.userConfigURL = userConfigURL; |
| } |
| |
| public FopFactory getFopFactory() { |
| return fopFactory; |
| } |
| |
| /** |
| * Allows to use a custom configured or implementation of org.apache.fop.apps.FopFactory. |
| */ |
| public void setFopFactory(FopFactory fopFactory) { |
| this.fopFactory = fopFactory; |
| } |
| |
| private static void updateConfigurations(InputStream is, FopFactory fopFactory) throws Exception { |
| DefaultConfigurationBuilder cfgBuilder = new DefaultConfigurationBuilder(); |
| Configuration cfg = cfgBuilder.build(is); |
| fopFactory.setUserConfig(cfg); |
| } |
| |
| @Override |
| protected void doStart() throws Exception { |
| super.doStart(); |
| |
| if (fopFactory == null) { |
| fopFactory = FopFactory.newInstance(); |
| } |
| |
| if (userConfigURL != null) { |
| InputStream is = ResourceHelper.resolveMandatoryResourceAsInputStream(getCamelContext(), userConfigURL); |
| updateConfigurations(is, fopFactory); |
| } |
| } |
| } |