| /* |
| * 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.net.HttpURLConnection; |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.net.URLConnection; |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.Project; |
| import org.apache.tools.ant.ProjectComponent; |
| |
| /** |
| * Condition to wait for a HTTP request to succeed. Its attribute(s) are: |
| * url - the URL of the request. |
| * errorsBeginAt - number at which errors begin at; default=400. |
| * @since Ant 1.5 |
| */ |
| public class Http extends ProjectComponent implements Condition { |
| private static final int ERROR_BEGINS = 400; |
| private String spec = null; |
| |
| /** |
| * Set the url attribute |
| * @param url the url of the request |
| */ |
| public void setUrl(String url) { |
| spec = url; |
| } |
| |
| private int errorsBeginAt = ERROR_BEGINS; |
| |
| /** |
| * Set the errorsBeginAt attribute |
| * @param errorsBeginAt number at which errors begin at, default is |
| * 400 |
| */ |
| public void setErrorsBeginAt(int errorsBeginAt) { |
| this.errorsBeginAt = errorsBeginAt; |
| } |
| |
| /** |
| * @return true if the HTTP request succeeds |
| * @exception BuildException if an error occurs |
| */ |
| public boolean eval() throws BuildException { |
| if (spec == null) { |
| throw new BuildException("No url specified in http condition"); |
| } |
| log("Checking for " + spec, Project.MSG_VERBOSE); |
| try { |
| URL url = new URL(spec); |
| try { |
| URLConnection conn = url.openConnection(); |
| if (conn instanceof HttpURLConnection) { |
| HttpURLConnection http = (HttpURLConnection) conn; |
| int code = http.getResponseCode(); |
| log("Result code for " + spec + " was " + code, |
| Project.MSG_VERBOSE); |
| if (code > 0 && code < errorsBeginAt) { |
| return true; |
| } |
| return false; |
| } |
| } catch (java.io.IOException e) { |
| return false; |
| } |
| } catch (MalformedURLException e) { |
| throw new BuildException("Badly formed URL: " + spec, e); |
| } |
| return true; |
| } |
| } |