Submitted by: Steve Loughran <steve_l@iseran.com> git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@269211 13f79535-47bb-0310-9956-ffa450edef68master
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<html> | |||||
<head> | |||||
<title>Sleep</title> | |||||
</head> | |||||
<body> | |||||
<h2><a name="sleep">Sleep</a></h2> | |||||
<h3>Description</h3> | |||||
<p> A task for sleeping a short period of time, useful when a build or deployment | |||||
process requires an interval between tasks.</p> | |||||
<h3>Parameters</h3> | |||||
<table border="1" cellpadding="2" cellspacing="0"> | |||||
<tr> | |||||
<td valign="top"><b>Attribute</b></td> | |||||
<td valign="top"><b>Description</b></td> | |||||
<td align="center" valign="top"><b>Required</b></td> | |||||
</tr> | |||||
<tr> | |||||
<td valign="top">hours</td> | |||||
<td valign="top">hours to to add to the sleep time</td> | |||||
<td valign="top" align="center">No</td> | |||||
</tr> | |||||
<tr> | |||||
<td valign="top">minutes</td> | |||||
<td valign="top"> minutes to add to the sleep time</td> | |||||
<td valign="top" align="center">No</td> | |||||
</tr> | |||||
<tr> | |||||
<td valign="top">seconds</td> | |||||
<td valign="top">seconds to add to the sleep time</td> | |||||
<td align="center" valign="top">No</td> | |||||
</tr> | |||||
<tr> | |||||
<td valign="top">milliseconds</td> | |||||
<td valign="top">milliseconds to add to the sleep time</td> | |||||
<td align="center" valign="top">No</td> | |||||
</tr> | |||||
<tr> | |||||
<td valign="top">failonerror</td> | |||||
<td valign="top">flag controlling whether to break the build on an error. | |||||
</td> | |||||
<td align="center" valign="top">No</td> | |||||
</tr> | |||||
</table> | |||||
<p>The sleep time is the sum of specified values, hours, minutes seconds and milliseconds. | |||||
A negative value can be supplied to any of them provided the total sleep time | |||||
is positive</p> | |||||
<p>Note that sleep times are always hints to be interpred by the OS how it feels | |||||
- small times may either be ignored or rounded up to a minimum timeslice. Note | |||||
also that the system clocks often have a fairly low granularity too, which complicates | |||||
measuring how long a sleep actually took.</p> | |||||
<h3>Examples</h3> | |||||
<pre> <sleep milliseconds="10"/></pre> | |||||
Sleep for about 10 mS. | |||||
<pre> <sleep seconds="2"/></pre> | |||||
Sleep for about 2 seconds. | |||||
<pre> <sleep minutes="-59" seconds="-58"/></pre> | |||||
<p>Sleep for -one hour less 59:58, or two seconds again </p> | |||||
<pre> <sleep /></pre> | |||||
Sleep for no time at all. This may yield the CPU time to another thread or process. | |||||
<hr> | |||||
<p align="center">Copyright © 2000,2001 Apache Software Foundation. All rights | |||||
Reserved.</p> | |||||
</body> | |||||
</html> | |||||
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<project name="sleeptest" default="all" > | |||||
<target name="test1"> | |||||
<sleep /> | |||||
</target> | |||||
<target name="test2"> | |||||
<sleep milliseconds="10"/> | |||||
</target> | |||||
<target name="test3"> | |||||
<sleep seconds="2"/> | |||||
</target> | |||||
<target name="test4"> | |||||
<sleep hours="1" minutes="-59" seconds="-58"/> | |||||
</target> | |||||
<target name="test5"> | |||||
<sleep minutes="-59" seconds="-58"/> | |||||
</target> | |||||
<target name="test6"> | |||||
<sleep minutes="-59" seconds="-58" failonerror="no"/> | |||||
</target> | |||||
<target name="all" | |||||
depends="test1,test2,test3,test4,test5" /> | |||||
</project> |
@@ -0,0 +1,215 @@ | |||||
/* | |||||
* The Apache Software License, Version 1.1 | |||||
* | |||||
* Copyright (c) 2001 The Apache Software Foundation. All rights | |||||
* reserved. | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions | |||||
* are met: | |||||
* | |||||
* 1. Redistributions of source code must retain the above copyright | |||||
* notice, this list of conditions and the following disclaimer. | |||||
* | |||||
* 2. Redistributions in binary form must reproduce the above copyright | |||||
* notice, this list of conditions and the following disclaimer in | |||||
* the documentation and/or other materials provided with the | |||||
* distribution. | |||||
* | |||||
* 3. The end-user documentation included with the redistribution, if | |||||
* any, must include the following acknowlegement: | |||||
* "This product includes software developed by the | |||||
* Apache Software Foundation (http://www.apache.org/)." | |||||
* Alternately, this acknowlegement may appear in the software itself, | |||||
* if and wherever such third-party acknowlegements normally appear. | |||||
* | |||||
* 4. The names "The Jakarta Project", "Ant", and "Apache Software | |||||
* Foundation" must not be used to endorse or promote products derived | |||||
* from this software without prior written permission. For written | |||||
* permission, please contact apache@apache.org. | |||||
* | |||||
* 5. Products derived from this software may not be called "Apache" | |||||
* nor may "Apache" appear in their names without prior written | |||||
* permission of the Apache Group. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED | |||||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |||||
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR | |||||
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | |||||
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |||||
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
* SUCH DAMAGE. | |||||
* ==================================================================== | |||||
* | |||||
* This software consists of voluntary contributions made by many | |||||
* individuals on behalf of the Apache Software Foundation. For more | |||||
* information on the Apache Software Foundation, please see | |||||
* <http://www.apache.org/>. | |||||
*/ | |||||
package org.apache.tools.ant.taskdefs; | |||||
import org.apache.tools.ant.Project; | |||||
import org.apache.tools.ant.Task; | |||||
import org.apache.tools.ant.BuildException; | |||||
/** | |||||
* A task to sleep for a period of time | |||||
* | |||||
* @author steve_l@iseran.com steve loughran | |||||
* @created 01 May 2001 | |||||
*/ | |||||
public class Sleep extends Task { | |||||
/** | |||||
* failure flag | |||||
*/ | |||||
private boolean failOnError = true; | |||||
/** | |||||
* Description of the Field | |||||
*/ | |||||
private int seconds = 0; | |||||
/** | |||||
* Description of the Field | |||||
*/ | |||||
private int hours = 0; | |||||
/** | |||||
* Description of the Field | |||||
*/ | |||||
private int minutes = 0; | |||||
/** | |||||
* Description of the Field | |||||
*/ | |||||
private int milliseconds = 0; | |||||
/** | |||||
* Creates new instance | |||||
*/ | |||||
public Sleep() { | |||||
} | |||||
/** | |||||
* Sets the Seconds attribute of the Sleep object | |||||
* | |||||
* @param seconds The new Seconds value | |||||
*/ | |||||
public void setSeconds(int seconds) { | |||||
this.seconds = seconds; | |||||
} | |||||
/** | |||||
* Sets the Hours attribute of the Sleep object | |||||
* | |||||
* @param hours The new Hours value | |||||
*/ | |||||
public void setHours(int hours) { | |||||
this.hours = hours; | |||||
} | |||||
/** | |||||
* Sets the Minutes attribute of the Sleep object | |||||
* | |||||
* @param minutes The new Minutes value | |||||
*/ | |||||
public void setMinutes(int minutes) { | |||||
this.minutes = minutes; | |||||
} | |||||
/** | |||||
* Sets the Milliseconds attribute of the Sleep object | |||||
* | |||||
* @param milliseconds The new Milliseconds value | |||||
*/ | |||||
public void setMilliseconds(int milliseconds) { | |||||
this.milliseconds = milliseconds; | |||||
} | |||||
/** | |||||
* sleep for a period of time | |||||
* | |||||
* @param millis time to sleep | |||||
*/ | |||||
public void doSleep(long millis) { | |||||
try { | |||||
Thread.currentThread().sleep(millis); | |||||
} | |||||
catch (InterruptedException ie) { | |||||
} | |||||
} | |||||
/** | |||||
* Sets the FailOnError attribute of the MimeMail object | |||||
* | |||||
* @param failOnError The new FailOnError value | |||||
*/ | |||||
public void setFailOnError(boolean failOnError) { | |||||
this.failOnError = failOnError; | |||||
} | |||||
/** | |||||
* return time to sleep | |||||
* | |||||
* @return sleep time. if below 0 then there is an error | |||||
*/ | |||||
private long getSleepTime() { | |||||
return ((((long) hours * 60) + minutes) * 60 + seconds) * 1000 + milliseconds; | |||||
} | |||||
/** | |||||
* verify parameters | |||||
* | |||||
* @throws BuildException if something is invalid | |||||
*/ | |||||
public void validate() { | |||||
long sleepTime = getSleepTime(); | |||||
if (getSleepTime() < 0) { | |||||
throw new BuildException("Negative sleep periods are not supported"); | |||||
} | |||||
} | |||||
/** | |||||
* Executes this build task. throws org.apache.tools.ant.BuildException | |||||
* if there is an error during task execution. | |||||
* | |||||
* @exception BuildException Description of Exception | |||||
*/ | |||||
public void execute() | |||||
throws BuildException { | |||||
try { | |||||
validate(); | |||||
long sleepTime=getSleepTime(); | |||||
log("sleeping for "+sleepTime+" milliseconds", | |||||
Project.MSG_VERBOSE); | |||||
doSleep(sleepTime); | |||||
} | |||||
catch (Exception e) { | |||||
if (failOnError) { | |||||
throw new BuildException(e); | |||||
} | |||||
else { | |||||
String text = e.toString(); | |||||
log(text, Project.MSG_ERR); | |||||
} | |||||
} | |||||
} | |||||
} | |||||
@@ -0,0 +1,146 @@ | |||||
/* | |||||
* The Apache Software License, Version 1.1 | |||||
* | |||||
* Copyright (c) 2001 The Apache Software Foundation. All rights | |||||
* reserved. | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions | |||||
* are met: | |||||
* | |||||
* 1. Redistributions of source code must retain the above copyright | |||||
* notice, this list of conditions and the following disclaimer. | |||||
* | |||||
* 2. Redistributions in binary form must reproduce the above copyright | |||||
* notice, this list of conditions and the following disclaimer in | |||||
* the documentation and/or other materials provided with the | |||||
* distribution. | |||||
* | |||||
* 3. The end-user documentation included with the redistribution, if | |||||
* any, must include the following acknowlegement: | |||||
* "This product includes software developed by the | |||||
* Apache Software Foundation (http://www.apache.org/)." | |||||
* Alternately, this acknowlegement may appear in the software itself, | |||||
* if and wherever such third-party acknowlegements normally appear. | |||||
* | |||||
* 4. The names "The Jakarta Project", "Ant", and "Apache Software | |||||
* Foundation" must not be used to endorse or promote products derived | |||||
* from this software without prior written permission. For written | |||||
* permission, please contact apache@apache.org. | |||||
* | |||||
* 5. Products derived from this software may not be called "Apache" | |||||
* nor may "Apache" appear in their names without prior written | |||||
* permission of the Apache Group. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED | |||||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |||||
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR | |||||
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | |||||
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |||||
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
* SUCH DAMAGE. | |||||
* ==================================================================== | |||||
* | |||||
* This software consists of voluntary contributions made by many | |||||
* individuals on behalf of the Apache Software Foundation. For more | |||||
* information on the Apache Software Foundation, please see | |||||
* <http://www.apache.org/>. | |||||
*/ | |||||
package org.apache.tools.ant.taskdefs; | |||||
/** | |||||
* @author steve_l@iseran.com steve loughran | |||||
* @created 01 May 2001 | |||||
*/ | |||||
public class SleepTest extends TaskdefsTest { | |||||
private final static String TASKDEFS_DIR = "src/etc/testcases/taskdefs/"; | |||||
private final static boolean TRACE=false; | |||||
public SleepTest(String name) { | |||||
super(name); | |||||
} | |||||
public void setUp() { | |||||
configureProject(TASKDEFS_DIR + "sleep.xml"); | |||||
} | |||||
public void test1() { | |||||
Timer timer=new Timer(); | |||||
executeTarget("test1"); | |||||
timer.stop(); | |||||
if(TRACE) System.out.println(" test1 elapsed time="+timer.time()); | |||||
assert(timer.time()>=0); | |||||
} | |||||
public void test2() { | |||||
Timer timer=new Timer(); | |||||
executeTarget("test2"); | |||||
timer.stop(); | |||||
if(TRACE) System.out.println(" test2 elapsed time="+timer.time()); | |||||
assert(timer.time()>=0); | |||||
} | |||||
public void test3() { | |||||
Timer timer=new Timer(); | |||||
executeTarget("test3"); | |||||
timer.stop(); | |||||
if(TRACE) System.out.println(" test3 elapsed time="+timer.time()); | |||||
assert(timer.time()>=2000); | |||||
} | |||||
public void test4() { | |||||
Timer timer=new Timer(); | |||||
executeTarget("test3"); | |||||
timer.stop(); | |||||
if(TRACE) System.out.println(" test4 elapsed time="+timer.time()); | |||||
assert(timer.time()>=2000 && timer.time()<60000); | |||||
} | |||||
public void test5() { | |||||
expectBuildException("test5", | |||||
"Negative sleep periods are not supported"); | |||||
} | |||||
public void test6() { | |||||
Timer timer=new Timer(); | |||||
executeTarget("test6"); | |||||
timer.stop(); | |||||
if(TRACE) System.out.println(" test6 elapsed time="+timer.time()); | |||||
assert(timer.time()<2000); | |||||
} | |||||
/** | |||||
* inner timer class | |||||
*/ | |||||
private static class Timer { | |||||
long start=0; | |||||
long stop=0; | |||||
public Timer() { | |||||
start(); | |||||
} | |||||
public void start() { | |||||
start=System.currentTimeMillis(); | |||||
} | |||||
public void stop() { | |||||
stop=System.currentTimeMillis(); | |||||
} | |||||
public long time() { | |||||
return stop-start; | |||||
} | |||||
} | |||||
} | |||||