| /* |
| * 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. |
| */ |
| |
| /** |
| * Equivalent to unix cat command. |
| * Return all the lines in an array. All other fields in the input message are stripped. |
| * @param lines An array of strings. |
| */ |
| function main(msg) { |
| var lines = msg.lines || []; |
| var retn = {lines: lines, payload: lines.join("\n")}; |
| console.log('cat: returning ' + JSON.stringify(retn)); |
| return retn; |
| } |