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Apache Ant Source Code Files
Apache Ant Source Code Files are inside the Apache Ant source package file like apache-ant-1.10.10-src.zip. Unzip the source package file and go to the "src/main" sub-directory, you will see source code files.
Here is the list of Java source code files of the Apache Ant 1.10.10 in \Users\fyicenter\apache-ant-1.10.10\src\main:
✍: FYIcenter.com
⏎ org/apache/tools/ant/taskdefs/condition/IsReachable.java
/* * 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 * * https://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 java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import java.net.InetAddress; import java.net.MalformedURLException; import java.net.URL; import java.net.UnknownHostException; import org.apache.tools.ant.BuildException; import org.apache.tools.ant.Project; import org.apache.tools.ant.ProjectComponent; /** * <p>Test for a host being reachable using ICMP "ping" packets & echo operations. * Ping packets are very reliable for assessing reachability in a LAN or WAN, * but they do not get through any well-configured firewall. Echo (port 7) may.</p> * * <p>This condition turns unknown host exceptions into false conditions. This is * because on a laptop, DNS is one of the first services lost when the network * goes; you are implicitly offline.</p> * * <p>If a URL is supplied instead of a host, the hostname is extracted and used in * the test--all other parts of the URL are discarded.</p> * * <p>The test may not work through firewalls; that is, something may be reachable * using a protocol such as HTTP, while the lower level ICMP packets get dropped * on the floor. Similarly, a host may be detected as reachable with ICMP, but not * reachable on other ports (i.e. port 80), because of firewalls.</p> * * @since Ant 1.7 */ public class IsReachable extends ProjectComponent implements Condition { /** * The default timeout. */ public static final int DEFAULT_TIMEOUT = 30; private static final int SECOND = 1000; // millis per second /** * Error when no hostname is defined */ public static final String ERROR_NO_HOSTNAME = "No hostname defined"; /** * Error when invalid timeout value is defined */ public static final String ERROR_BAD_TIMEOUT = "Invalid timeout value"; /** * Unknown host message is seen. */ private static final String WARN_UNKNOWN_HOST = "Unknown host: "; /** * Network error message is seen. */ public static final String ERROR_ON_NETWORK = "network error to "; /** Error message when url and host are specified. */ public static final String ERROR_BOTH_TARGETS = "Both url and host have been specified"; /** Error message when no reachably test avail. */ public static final String MSG_NO_REACHABLE_TEST = "cannot do a proper reachability test on this Java version"; /** Error message when an invalid url is used. */ public static final String ERROR_BAD_URL = "Bad URL "; /** Error message when no hostname in url. */ public static final String ERROR_NO_HOST_IN_URL = "No hostname in URL "; /** * The method name to look for in InetAddress * @deprecated Since 1.10.6 */ @Deprecated public static final String METHOD_NAME = "isReachable"; private String host; private String url; private int timeout = DEFAULT_TIMEOUT; /** * Set the host to ping. * * @param host the host to ping. */ public void setHost(final String host) { this.host = host; } /** * Set the URL from which to extract the hostname. * * @param url a URL object. */ public void setUrl(final String url) { this.url = url; } /** * Set the timeout for the reachability test in seconds. * * @param timeout the timeout in seconds. */ public void setTimeout(final int timeout) { this.timeout = timeout; } /** * emptyness test * * @param string param to check * * @return true if it is isNullOrEmpty */ private boolean isNullOrEmpty(final String string) { return string == null || string.isEmpty(); } /** * Evaluate the condition. * * @return true if the condition is true. * * @throws BuildException * if an error occurs */ @Override public boolean eval() throws BuildException { if (isNullOrEmpty(host) && isNullOrEmpty(url)) { throw new BuildException(ERROR_NO_HOSTNAME); } if (timeout < 0) { throw new BuildException(ERROR_BAD_TIMEOUT); } String target = host; if (!isNullOrEmpty(url)) { if (!isNullOrEmpty(host)) { throw new BuildException(ERROR_BOTH_TARGETS); } try { //get the host of a url final URL realURL = new URL(url); target = realURL.getHost(); if (isNullOrEmpty(target)) { throw new BuildException(ERROR_NO_HOST_IN_URL + url); } } catch (final MalformedURLException e) { throw new BuildException(ERROR_BAD_URL + url, e); } } log("Probing host " + target, Project.MSG_VERBOSE); InetAddress address; try { address = InetAddress.getByName(target); } catch (final UnknownHostException e1) { log(WARN_UNKNOWN_HOST + target); return false; } log("Host address = " + address.getHostAddress(), Project.MSG_VERBOSE); boolean reachable; try { reachable = address.isReachable(timeout * SECOND); } catch (final IOException ioe) { reachable = false; log(ERROR_ON_NETWORK + target + ": " + ioe.toString()); } log("host is" + (reachable ? "" : " not") + " reachable", Project.MSG_VERBOSE); return reachable; } }
⏎ org/apache/tools/ant/taskdefs/condition/IsReachable.java
Or download all of them as a single archive file:
File name: apache-ant-1.10.10-fyi.zip File size: 2392938 bytes Release date: 2021-04-17 Download
⇐ Download Apache Ant Source Package
2021-07-10, 110153👍, 0💬
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