| /* |
| * 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.karaf.decanter.marshaller.csv; |
| |
| import org.apache.karaf.decanter.api.marshaller.Marshaller; |
| import org.osgi.service.component.ComponentContext; |
| import org.osgi.service.component.annotations.Activate; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.event.Event; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.OutputStream; |
| import java.io.OutputStreamWriter; |
| import java.util.Dictionary; |
| |
| @Component( |
| name = "org.apache.karaf.decanter.marshaller.csv", |
| immediate = true, |
| property = Marshaller.SERVICE_KEY_DATAFORMAT + "=csv" |
| ) |
| public class CsvMarshaller implements Marshaller { |
| |
| private final static Logger LOGGER = LoggerFactory.getLogger(CsvMarshaller.class); |
| |
| private String separator = ","; |
| |
| @Activate |
| public void activate(ComponentContext componentContext) { |
| Dictionary<String, Object> config = componentContext.getProperties(); |
| separator = (config.get("separator") != null) ? (String) config.get("separator") : ","; |
| } |
| |
| @Override |
| public void marshal(Object obj, OutputStream out) { |
| String result = marshal(obj); |
| OutputStreamWriter writer = new OutputStreamWriter(out); |
| try { |
| writer.write(result); |
| } catch (Exception e) { |
| LOGGER.warn("Can't marshal on the output stream", e); |
| } |
| } |
| |
| @Override |
| public String marshal(Object obj) { |
| return marshal((Event) obj); |
| } |
| |
| private String marshal(Event event) { |
| StringBuilder builder = new StringBuilder(); |
| for (String propertyName : event.getPropertyNames()) { |
| Object propertyValue = event.getProperty(propertyName); |
| if (propertyValue != null) { |
| builder.append(propertyName).append("=").append(propertyValue.toString()).append(separator); |
| } |
| } |
| String result = builder.toString(); |
| result = result.substring(0, result.length() - 1); |
| return result; |
| } |
| |
| } |