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svn merge --ignore-ancestry -c 1342501 ../../trunk/ 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1461718 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Vinod Kumar Vavilapalli 2013-03-27 17:17:31 +00:00
parent f26fa51029
commit 2b856f04e2
3 changed files with 56 additions and 0 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
View File

@ -8,6 +8,9 @@ Release 2.0.5-beta - UNRELEASED
HADOOP-9283. Add support for running the Hadoop client on AIX. (atm)
HADOOP-8415. Add getDouble() and setDouble() in
org.apache.hadoop.conf.Configuration (Jan van der Lugt via harsh)
IMPROVEMENTS
HADOOP-9253. Capture ulimit info in the logs at service start time.

30
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
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@ -1016,6 +1016,7 @@ public class Configuration implements Iterable<Map.Entry<String,String>>,
return defaultValue;
return Float.parseFloat(valueString);
}
/**
* Set the value of the <code>name</code> property to a <code>float</code>.
*
@ -1026,6 +1027,35 @@ public class Configuration implements Iterable<Map.Entry<String,String>>,
set(name,Float.toString(value));
}
/**
* Get the value of the <code>name</code> property as a <code>double</code>.
* If no such property exists, the provided default value is returned,
* or if the specified value is not a valid <code>double</code>,
* then an error is thrown.
*
* @param name property name.
* @param defaultValue default value.
* @throws NumberFormatException when the value is invalid
* @return property value as a <code>double</code>,
* or <code>defaultValue</code>.
*/
public double getDouble(String name, double defaultValue) {
String valueString = getTrimmed(name);
if (valueString == null)
return defaultValue;
return Double.parseDouble(valueString);
}
/**
* Set the value of the <code>name</code> property to a <code>double</code>.
*
* @param name property name.
* @param value property value.
*/
public void setDouble(String name, double value) {
set(name,Double.toString(value));
}
/**
* Get the value of the <code>name</code> property as a <code>boolean</code>.
* If no such property is specified, or if the specified value is not a valid

23
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/conf/TestConfiguration.java
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@ -579,6 +579,29 @@ public class TestConfiguration extends TestCase {
}
}
public void testDoubleValues() throws IOException {
out=new BufferedWriter(new FileWriter(CONFIG));
startConfig();
appendProperty("test.double1", "3.1415");
appendProperty("test.double2", "003.1415");
appendProperty("test.double3", "-3.1415");
appendProperty("test.double4", " -3.1415 ");
appendProperty("test.double5", "xyz-3.1415xyz");
endConfig();
Path fileResource = new Path(CONFIG);
conf.addResource(fileResource);
assertEquals(3.1415, conf.getDouble("test.double1", 0.0));
assertEquals(3.1415, conf.getDouble("test.double2", 0.0));
assertEquals(-3.1415, conf.getDouble("test.double3", 0.0));
assertEquals(-3.1415, conf.getDouble("test.double4", 0.0));
try {
conf.getDouble("test.double5", 0.0);
fail("Property had invalid double value, but was read successfully.");
} catch (NumberFormatException e) {
// pass
}
}
public void testGetClass() throws IOException {
out=new BufferedWriter(new FileWriter(CONFIG));
startConfig();