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| <h2 title="Class SystemConfiguration" class="title">Class SystemConfiguration</h2> |
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| <li>java.lang.Object</li> |
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| <pre>public class <span class="typeNameLabel">SystemConfiguration</span> |
| extends java.lang.Object</pre> |
| <div class="block">Manages system properties. At first loading of this class, it will: |
| <p> |
| 1) Load in the DEFAULT_PROPERTY_FILE, if found on the classpath. (Currently 'pirk.properties') |
| <p> |
| 2) Load in any properties files in the LOCAL_PROPERTIES_DIR. The filenames must end with '.properties' |
| <p> |
| 3) Load in properties from the QUERIER_PROPERTIES_FILE and RESPONDER_PROPERTIES_FILE</div> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#SystemConfiguration--">SystemConfiguration</a></span>()</code> </td> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#appendProperty-java.lang.String-java.lang.String-">appendProperty</a></span>(java.lang.String propertyName, |
| java.lang.String value)</code> |
| <div class="block">Appends a property via a comma separated list</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#getBooleanProperty-java.lang.String-boolean-">getBooleanProperty</a></span>(java.lang.String propertyName, |
| boolean defaultValue)</code> |
| <div class="block">Gets the specified property as a <code>boolean</code>, or the default value if the property isn't defined.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#getIntProperty-java.lang.String-int-">getIntProperty</a></span>(java.lang.String propertyName, |
| int defaultValue)</code> |
| <div class="block">Gets the specified property as an <code>int</code>, or the default value if the property isn't found.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#getLongProperty-java.lang.String-long-">getLongProperty</a></span>(java.lang.String propertyName, |
| long defaultValue)</code> |
| <div class="block">Gets the specified property as an <code>long</code>, or the default value if the property isn't found.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static java.util.Properties</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#getProperties--">getProperties</a></span>()</code> |
| <div class="block">Return the Properties object maintained by this class.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#getProperty-java.lang.String-">getProperty</a></span>(java.lang.String propertyName)</code> |
| <div class="block">Gets the specified property; returns <code>null</code> if the property isn't found.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#getProperty-java.lang.String-java.lang.String-">getProperty</a></span>(java.lang.String propertyName, |
| java.lang.String defaultValue)</code> |
| <div class="block">Gets the specified property as a <code>String</code>, or the default value if the property isn't found.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#hasProperty-java.lang.String-">hasProperty</a></span>(java.lang.String propertyName)</code> |
| <div class="block">Returns true iff the given property name is defined.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#initialize--">initialize</a></span>()</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#isSetTrue-java.lang.String-">isSetTrue</a></span>(java.lang.String propertyName)</code> |
| <div class="block">Returns <code>true</code> iff the specified boolean property value is "true".</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#loadProperties-java.io.InputStream-">loadProperties</a></span>(java.io.InputStream stream)</code> |
| <div class="block">Load the properties in the Properties object and then trim any whitespace</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#loadPropsFromDir-java.lang.String-">loadPropsFromDir</a></span>(java.lang.String dirName)</code> |
| <div class="block">Loads the properties from local properties file in the specified directory.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#loadPropsFromFile-java.io.File-">loadPropsFromFile</a></span>(java.io.File file)</code> |
| <div class="block">Loads the properties from the specified file.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#loadPropsFromFile-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.FileSystem-">loadPropsFromFile</a></span>(org.apache.hadoop.fs.Path filePath, |
| org.apache.hadoop.fs.FileSystem fs)</code> |
| <div class="block">Loads the properties from the specified file in hdfs</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#loadPropsFromFile-java.lang.String-org.apache.hadoop.fs.FileSystem-">loadPropsFromFile</a></span>(java.lang.String filename, |
| org.apache.hadoop.fs.FileSystem fs)</code> |
| <div class="block">Loads the properties from the specified file in hdfs</div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#loadPropsFromHDFSDir-java.lang.String-org.apache.hadoop.fs.FileSystem-">loadPropsFromHDFSDir</a></span>(java.lang.String dirName, |
| org.apache.hadoop.fs.FileSystem fs)</code> |
| <div class="block">Loads the properties from local properties file in the specified directory in hdfs.</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#loadPropsFromResource-java.lang.String-">loadPropsFromResource</a></span>(java.lang.String name)</code> |
| <div class="block">Loads the properties from the specified resource on the current classloader.</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/pirk/utils/SystemConfiguration.html#setProperty-java.lang.String-java.lang.String-">setProperty</a></span>(java.lang.String propertyName, |
| java.lang.String value)</code> |
| <div class="block">Sets the property to the given value.</div> |
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| </table> |
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| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
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| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
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| <h4>SystemConfiguration</h4> |
| <pre>public SystemConfiguration()</pre> |
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| <h4>getProperties</h4> |
| <pre>public static java.util.Properties getProperties()</pre> |
| <div class="block">Return the Properties object maintained by this class.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The system properties.</dd> |
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| <h4>getProperty</h4> |
| <pre>public static java.lang.String getProperty(java.lang.String propertyName)</pre> |
| <div class="block">Gets the specified property; returns <code>null</code> if the property isn't found.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>propertyName</code> - The name of the requested property.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The value of the property, or <code>null</code> if the property cannot be found.</dd> |
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| <h4>getProperty</h4> |
| <pre>public static java.lang.String getProperty(java.lang.String propertyName, |
| java.lang.String defaultValue)</pre> |
| <div class="block">Gets the specified property as a <code>String</code>, or the default value if the property isn't found.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>propertyName</code> - The name of the requested string property value.</dd> |
| <dd><code>defaultValue</code> - The value to return if the property is undefined.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The value of the requested property, or the default value if the property is undefined.</dd> |
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| int defaultValue)</pre> |
| <div class="block">Gets the specified property as an <code>int</code>, or the default value if the property isn't found.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>propertyName</code> - The name of the requested int property value.</dd> |
| <dd><code>defaultValue</code> - The value to return if the property is undefined.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The value of the requested property, or the default value if the property is undefined.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.NumberFormatException</code> - If the property does not contain a parsable <code>int</code> value.</dd> |
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| <pre>public static long getLongProperty(java.lang.String propertyName, |
| long defaultValue)</pre> |
| <div class="block">Gets the specified property as an <code>long</code>, or the default value if the property isn't found.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>propertyName</code> - The name of the requested long property value.</dd> |
| <dd><code>defaultValue</code> - The value to return if the property is undefined.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The value of the requested property, or the default value if the property is undefined.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.NumberFormatException</code> - If the property does not contain a parsable <code>long</code> value.</dd> |
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| boolean defaultValue)</pre> |
| <div class="block">Gets the specified property as a <code>boolean</code>, or the default value if the property isn't defined.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>propertyName</code> - The name of the requested boolean property value.</dd> |
| <dd><code>defaultValue</code> - The value to return if the property is undefined.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>true</code> if the property is defined and has the value "true", otherwise <code>defaultValue</code>.</dd> |
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| <p> |
| If the property is not found, or it's value is not "true" then the method will return <code>false</code>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>propertyName</code> - The name of the requested boolean property value.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>true</code> if the property is defined and has the value "true", otherwise <code>false</code>.</dd> |
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| <pre>public static void setProperty(java.lang.String propertyName, |
| java.lang.String value)</pre> |
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| <p> |
| Any previous values stored at the same property name are replaced.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>propertyName</code> - The name of the property to set.</dd> |
| <dd><code>value</code> - The property value.</dd> |
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| <div class="block">Returns true iff the given property name is defined.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>propertyName</code> - The property name to test.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>true</code> if the property is found in the configuration, or <code>false</code> otherwise.</dd> |
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| java.lang.String value)</pre> |
| <div class="block">Appends a property via a comma separated list |
| <p> |
| If the property does not exist, it adds it.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>propertyName</code> - The property whose value is to be appended with the given value.</dd> |
| <dd><code>value</code> - The value to be stored, or appended to the current value.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="loadPropsFromDir-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>loadPropsFromDir</h4> |
| <pre>public static void loadPropsFromDir(java.lang.String dirName)</pre> |
| <div class="block">Loads the properties from local properties file in the specified directory. |
| <p> |
| All files ending in '.properties' will be loaded. The new properties are added to the current system configuration.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>dirName</code> - The directory to search for the new properties files.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="loadPropsFromHDFSDir-java.lang.String-org.apache.hadoop.fs.FileSystem-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>loadPropsFromHDFSDir</h4> |
| <pre>public static void loadPropsFromHDFSDir(java.lang.String dirName, |
| org.apache.hadoop.fs.FileSystem fs) |
| throws java.io.FileNotFoundException, |
| java.io.IOException</pre> |
| <div class="block">Loads the properties from local properties file in the specified directory in hdfs. |
| <p> |
| All files ending in '.properties' will be loaded. The new properties are added to the current system configuration.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>dirName</code> - The directory to search for the new properties files.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.io.IOException</code></dd> |
| <dd><code>java.io.FileNotFoundException</code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="loadPropsFromFile-java.io.File-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>loadPropsFromFile</h4> |
| <pre>public static void loadPropsFromFile(java.io.File file)</pre> |
| <div class="block">Loads the properties from the specified file. |
| <p> |
| The new properties are added to the current system configuration.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>file</code> - The properties file containing the system properties to add.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="loadPropsFromFile-java.lang.String-org.apache.hadoop.fs.FileSystem-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>loadPropsFromFile</h4> |
| <pre>public static void loadPropsFromFile(java.lang.String filename, |
| org.apache.hadoop.fs.FileSystem fs) |
| throws java.io.IOException</pre> |
| <div class="block">Loads the properties from the specified file in hdfs |
| <p> |
| The new properties are added to the current system configuration.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>file</code> - The properties file containing the system properties to add.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.io.IOException</code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="loadPropsFromFile-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.FileSystem-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>loadPropsFromFile</h4> |
| <pre>public static void loadPropsFromFile(org.apache.hadoop.fs.Path filePath, |
| org.apache.hadoop.fs.FileSystem fs) |
| throws java.io.IOException</pre> |
| <div class="block">Loads the properties from the specified file in hdfs |
| <p> |
| The new properties are added to the current system configuration.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>file</code> - The properties file containing the system properties to add.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.io.IOException</code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="loadPropsFromResource-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>loadPropsFromResource</h4> |
| <pre>public static void loadPropsFromResource(java.lang.String name)</pre> |
| <div class="block">Loads the properties from the specified resource on the current classloader. |
| <p> |
| The new properties are added to the current system configuration.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - The name of the resource defining the properties.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="loadProperties-java.io.InputStream-"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>loadProperties</h4> |
| <pre>public static void loadProperties(java.io.InputStream stream) |
| throws java.io.IOException</pre> |
| <div class="block">Load the properties in the Properties object and then trim any whitespace |
| <p> |
| Properties.load does not do this automatically</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.io.IOException</code></dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
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