| /* |
| * 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.tools.ant.taskdefs.condition; |
| |
| import java.io.IOException; |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.Project; |
| import org.apache.tools.ant.ProjectComponent; |
| |
| /** |
| * Condition to wait for a TCP/IP socket to have a listener. Its attributes are: |
| * server - the name of the server. |
| * port - the port number of the socket. |
| * |
| * @since Ant 1.5 |
| */ |
| public class Socket extends ProjectComponent implements Condition { |
| private String server = null; |
| private int port = 0; |
| |
| /** |
| * Set the server attribute |
| * |
| * @param server the server name |
| */ |
| public void setServer(String server) { |
| this.server = server; |
| } |
| |
| /** |
| * Set the port attribute |
| * |
| * @param port the port number of the socket |
| */ |
| public void setPort(int port) { |
| this.port = port; |
| } |
| |
| /** |
| * @return true if a socket can be created |
| * @exception BuildException if the attributes are not set |
| */ |
| public boolean eval() throws BuildException { |
| if (server == null) { |
| throw new BuildException("No server specified in socket " |
| + "condition"); |
| } |
| if (port == 0) { |
| throw new BuildException("No port specified in socket condition"); |
| } |
| log("Checking for listener at " + server + ":" + port, |
| Project.MSG_VERBOSE); |
| java.net.Socket s = null; |
| try { |
| s = new java.net.Socket(server, port); |
| } catch (IOException e) { |
| return false; |
| } finally { |
| if (s != null) { |
| try { |
| s.close(); |
| } catch (IOException ioe) { |
| // Intentionally left blank |
| } |
| } |
| } |
| return true; |
| } |
| |
| } |