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| <div class="subTitle">org.apache.logging.log4j.core.util</div> |
| <h2 title="Class OptionConverter" class="title">Class OptionConverter</h2> |
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| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.logging.log4j.core.util.OptionConverter</li> |
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| <pre>public final class <a href="../../../../../../src-html/org/apache/logging/log4j/core/util/OptionConverter.html#line.32">OptionConverter</a> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">A convenience class to convert property values to specific types.</div> |
| </li> |
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| <!-- ========== METHOD SUMMARY =========== --> |
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| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/util/OptionConverter.html#concatenateArrays-java.lang.String:A-java.lang.String:A-">concatenateArrays</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[] l, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[] r)</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/util/OptionConverter.html#convertSpecialChars-java.lang.String-">convertSpecialChars</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> s)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/util/OptionConverter.html#findAndSubst-java.lang.String-java.util.Properties-">findAndSubst</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> key, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Properties.html?is-external=true" title="class or interface in java.util">Properties</a> props)</code> |
| <div class="block">Find the value corresponding to <code>key</code> in |
| <code>props</code>.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/util/OptionConverter.html#instantiateByClassName-java.lang.String-java.lang.Class-java.lang.Object-">instantiateByClassName</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> className, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><?> superClass, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> defaultValue)</code> |
| <div class="block">Instantiate an object given a class name.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/util/OptionConverter.html#instantiateByKey-java.util.Properties-java.lang.String-java.lang.Class-java.lang.Object-">instantiateByKey</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Properties.html?is-external=true" title="class or interface in java.util">Properties</a> props, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> key, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><?> superClass, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> defaultValue)</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/util/OptionConverter.html#substVars-java.lang.String-java.util.Properties-">substVars</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> val, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Properties.html?is-external=true" title="class or interface in java.util">Properties</a> props)</code> |
| <div class="block">Perform variable substitution in string <code>val</code> from the |
| values of keys found in the system propeties.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/util/OptionConverter.html#toBoolean-java.lang.String-boolean-">toBoolean</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> value, |
| boolean defaultValue)</code> |
| <div class="block">If <code>value</code> is "true", then <code>true</code> is |
| returned.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>static long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/util/OptionConverter.html#toFileSize-java.lang.String-long-">toFileSize</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> value, |
| long defaultValue)</code> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/util/OptionConverter.html#toInt-java.lang.String-int-">toInt</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> value, |
| int defaultValue)</code> |
| <div class="block">Convert the String value to an int.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>static org.apache.logging.log4j.Level</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/util/OptionConverter.html#toLevel-java.lang.String-org.apache.logging.log4j.Level-">toLevel</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> value, |
| org.apache.logging.log4j.Level defaultValue)</code> </td> |
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| </table> |
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| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
| </ul> |
| </li> |
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| <h3>Method Detail</h3> |
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| <h4>concatenateArrays</h4> |
| <pre>public static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[] <a href="../../../../../../src-html/org/apache/logging/log4j/core/util/OptionConverter.html#line.48">concatenateArrays</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[] l, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[] r)</pre> |
| </li> |
| </ul> |
| <a name="convertSpecialChars-java.lang.String-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>convertSpecialChars</h4> |
| <pre>public static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../../../src-html/org/apache/logging/log4j/core/util/OptionConverter.html#line.58">convertSpecialChars</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> s)</pre> |
| </li> |
| </ul> |
| <a name="instantiateByKey-java.util.Properties-java.lang.String-java.lang.Class-java.lang.Object-"> |
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| <h4>instantiateByKey</h4> |
| <pre>public static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> <a href="../../../../../../src-html/org/apache/logging/log4j/core/util/OptionConverter.html#line.102">instantiateByKey</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Properties.html?is-external=true" title="class or interface in java.util">Properties</a> props, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> key, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><?> superClass, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> defaultValue)</pre> |
| </li> |
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| <h4>toBoolean</h4> |
| <pre>public static boolean <a href="../../../../../../src-html/org/apache/logging/log4j/core/util/OptionConverter.html#line.127">toBoolean</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> value, |
| boolean defaultValue)</pre> |
| <div class="block">If <code>value</code> is "true", then <code>true</code> is |
| returned. If <code>value</code> is "false", then |
| <code>false</code> is returned. Otherwise, <code>default</code> is |
| returned. |
| |
| <p>Case of value is unimportant.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>value</code> - The value to convert.</dd> |
| <dd><code>defaultValue</code> - The default value.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true or false, depending on the value and/or default.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>toInt</h4> |
| <pre>public static int <a href="../../../../../../src-html/org/apache/logging/log4j/core/util/OptionConverter.html#line.147">toInt</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> value, |
| int defaultValue)</pre> |
| <div class="block">Convert the String value to an int.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>value</code> - The value as a String.</dd> |
| <dd><code>defaultValue</code> - The default value.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The value as an int.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="toLevel-java.lang.String-org.apache.logging.log4j.Level-"> |
| <!-- --> |
| </a> |
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| <li class="blockList"> |
| <h4>toLevel</h4> |
| <pre>public static org.apache.logging.log4j.Level <a href="../../../../../../src-html/org/apache/logging/log4j/core/util/OptionConverter.html#line.159">toLevel</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> value, |
| org.apache.logging.log4j.Level defaultValue)</pre> |
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| <h4>toFileSize</h4> |
| <pre>public static long <a href="../../../../../../src-html/org/apache/logging/log4j/core/util/OptionConverter.html#line.231">toFileSize</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> value, |
| long defaultValue)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>value</code> - The size of the file as a String.</dd> |
| <dd><code>defaultValue</code> - The default value.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The size of the file as a long.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="findAndSubst-java.lang.String-java.util.Properties-"> |
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| </a> |
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| <h4>findAndSubst</h4> |
| <pre>public static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../../../src-html/org/apache/logging/log4j/core/util/OptionConverter.html#line.267">findAndSubst</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> key, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Properties.html?is-external=true" title="class or interface in java.util">Properties</a> props)</pre> |
| <div class="block">Find the value corresponding to <code>key</code> in |
| <code>props</code>. Then perform variable substitution on the |
| found value.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>key</code> - The key to locate.</dd> |
| <dd><code>props</code> - The properties.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The String after substitution.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="instantiateByClassName-java.lang.String-java.lang.Class-java.lang.Object-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>instantiateByClassName</h4> |
| <pre>public static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> <a href="../../../../../../src-html/org/apache/logging/log4j/core/util/OptionConverter.html#line.292">instantiateByClassName</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> className, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><?> superClass, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> defaultValue)</pre> |
| <div class="block">Instantiate an object given a class name. Check that the |
| <code>className</code> is a subclass of |
| <code>superClass</code>. If that test fails or the object could |
| not be instantiated, then <code>defaultValue</code> is returned.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>className</code> - The fully qualified class name of the object to instantiate.</dd> |
| <dd><code>superClass</code> - The class to which the new object should belong.</dd> |
| <dd><code>defaultValue</code> - The object to return in case of non-fulfillment</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The created object.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="substVars-java.lang.String-java.util.Properties-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>substVars</h4> |
| <pre>public static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../../../src-html/org/apache/logging/log4j/core/util/OptionConverter.html#line.349">substVars</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> val, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Properties.html?is-external=true" title="class or interface in java.util">Properties</a> props) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></pre> |
| <div class="block">Perform variable substitution in string <code>val</code> from the |
| values of keys found in the system propeties. |
| |
| <p>The variable substitution delimiters are <b>${</b> and <b>}</b>.</p> |
| |
| <p>For example, if the System properties contains "key=value", then |
| the call</p> |
| <pre> |
| String s = OptionConverter.substituteVars("Value of key is ${key}."); |
| </pre> |
| <p> |
| will set the variable <code>s</code> to "Value of key is value.". |
| </p> |
| <p>If no value could be found for the specified key, then the |
| <code>props</code> parameter is searched, if the value could not |
| be found there, then substitution defaults to the empty string.</p> |
| |
| <p>For example, if system properties contains no value for the key |
| "inexistentKey", then the call |
| </p> |
| <pre> |
| String s = OptionConverter.subsVars("Value of inexistentKey is [${inexistentKey}]"); |
| </pre> |
| <p> |
| will set <code>s</code> to "Value of inexistentKey is []" |
| </p> |
| <p>An <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang"><code>IllegalArgumentException</code></a> is thrown if |
| <code>val</code> contains a start delimeter "${" which is not |
| balanced by a stop delimeter "}". </p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>val</code> - The string on which variable substitution is performed.</dd> |
| <dd><code>props</code> - The properties to use for substitution.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The String after substitution.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if <code>val</code> is malformed.</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
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