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<div class="subTitle">org.apache.felix.ipojo.util</div>
<h2 title="Class Logger" class="title">Class Logger</h2>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../org/apache/felix/ipojo/util/Log.html" title="interface in org.apache.felix.ipojo.util">Log</a></dd>
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<pre>public class <a href="../../../../../src-html/org/apache/felix/ipojo/util/Logger.html#line.35">Logger</a>
extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="../../../../../org/apache/felix/ipojo/util/Log.html" title="interface in org.apache.felix.ipojo.util">Log</a></pre>
<div class="block">iPOJO Logger.
This class is an helper class implementing a simple log system.
This logger sends log messages to a log service if available.</div>
<dl><dt><span class="strong">Author:</span></dt>
<dd><a href="mailto:dev@felix.apache.org">Felix Project Team</a></dd></dl>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>private static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.ConsoleLogService.html" title="class in org.apache.felix.ipojo.util">Logger.ConsoleLogService</a></strong></code>
<div class="block">A simple log service implementation writing the messages and stack trace on System.err.</div>
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<td class="colFirst"><code>private static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#DEBUG_HEADER">DEBUG_HEADER</a></strong></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>private static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#ERROR_HEADER">ERROR_HEADER</a></strong></code>&nbsp;</td>
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<tr class="altColor">
<td class="colFirst"><code>private static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#INFO_HEADER">INFO_HEADER</a></strong></code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#IPOJO_LOG_LEVEL_HEADER">IPOJO_LOG_LEVEL_HEADER</a></strong></code>
<div class="block">iPOJO log level manifest header.</div>
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<tr class="altColor">
<td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#IPOJO_LOG_LEVEL_PROP">IPOJO_LOG_LEVEL_PROP</a></strong></code>
<div class="block">The iPOJO default log level property.</div>
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<td class="colFirst"><code>private BundleContext</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#m_context">m_context</a></strong></code>
<div class="block">The Bundle Context used to get the
log service.</div>
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<tr class="altColor">
<td class="colFirst"><code>private static <a href="http://www.osgi.org/javadoc/r4v43/cmpn/org/osgi/service/log/LogService.html?is-external=true" title="class or interface in org.osgi.service.log">LogService</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#m_defaultLogger">m_defaultLogger</a></strong></code>
<div class="block">A shared log service implementation writing messages on the console.</div>
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<tr class="rowColor">
<td class="colFirst"><code>private <a href="../../../../../org/apache/felix/ipojo/ComponentInstance.html" title="interface in org.apache.felix.ipojo">ComponentInstance</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#m_instance">m_instance</a></strong></code>
<div class="block">The instance associated to the logger if any.</div>
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<td class="colFirst"><code>private int</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#m_level">m_level</a></strong></code>
<div class="block">The trace level of this logger.</div>
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<tr class="rowColor">
<td class="colFirst"><code>private <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#m_name">m_name</a></strong></code>
<div class="block">The name of the logger.</div>
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<td class="colFirst"><code>private static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#UNKNOWN_HEADER">UNKNOWN_HEADER</a></strong></code>&nbsp;</td>
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<td class="colFirst"><code>private static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#WARNING_HEADER">WARNING_HEADER</a></strong></code>&nbsp;</td>
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<h3>Fields inherited from interface&nbsp;org.apache.felix.ipojo.util.<a href="../../../../../org/apache/felix/ipojo/util/Log.html" title="interface in org.apache.felix.ipojo.util">Log</a></h3>
<code><a href="../../../../../org/apache/felix/ipojo/util/Log.html#DEBUG">DEBUG</a>, <a href="../../../../../org/apache/felix/ipojo/util/Log.html#ERROR">ERROR</a>, <a href="../../../../../org/apache/felix/ipojo/util/Log.html#INFO">INFO</a>, <a href="../../../../../org/apache/felix/ipojo/util/Log.html#WARNING">WARNING</a></code></li>
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<td class="colOne"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#Logger(BundleContext, org.apache.felix.ipojo.ComponentInstance)">Logger</a></strong>(BundleContext&nbsp;context,
<a href="../../../../../org/apache/felix/ipojo/ComponentInstance.html" title="interface in org.apache.felix.ipojo">ComponentInstance</a>&nbsp;instance)</code>
<div class="block">Create a logger.</div>
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<td class="colOne"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#Logger(BundleContext, org.apache.felix.ipojo.ComponentInstance, int)">Logger</a></strong>(BundleContext&nbsp;context,
<a href="../../../../../org/apache/felix/ipojo/ComponentInstance.html" title="interface in org.apache.felix.ipojo">ComponentInstance</a>&nbsp;instance,
int&nbsp;level)</code>
<div class="block">Creates a logger.</div>
</td>
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<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#Logger(BundleContext, java.lang.String)">Logger</a></strong>(BundleContext&nbsp;context,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name)</code>
<div class="block">Create a logger.</div>
</td>
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<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#Logger(BundleContext, java.lang.String, int)">Logger</a></strong>(BundleContext&nbsp;context,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name,
int&nbsp;level)</code>
<div class="block">Creates a logger.</div>
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<td class="colFirst"><code>private void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#dispatch(int, java.lang.String, java.lang.Throwable)">dispatch</a></strong>(int&nbsp;level,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;msg,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&nbsp;exception)</code>
<div class="block">Internal log method.</div>
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<td class="colFirst"><code>private static int</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#getDefaultLevel(BundleContext)">getDefaultLevel</a></strong>(BundleContext&nbsp;context)</code>
<div class="block">Gets the default logger level.</div>
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<td class="colFirst"><code>private static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#getLogHeaderForLevel(int)">getLogHeaderForLevel</a></strong>(int&nbsp;level)</code>&nbsp;</td>
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<td class="colFirst"><code>private void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#invokeErrorHandler(int, java.lang.String, java.lang.Throwable)">invokeErrorHandler</a></strong>(int&nbsp;level,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;msg,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&nbsp;error)</code>
<div class="block">Invokes the error handler service is present.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#log(int, java.lang.String)">log</a></strong>(int&nbsp;level,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;msg)</code>
<div class="block">Logs a message.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/felix/ipojo/util/Logger.html#log(int, java.lang.String, java.lang.Throwable)">log</a></strong>(int&nbsp;level,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;msg,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&nbsp;exception)</code>
<div class="block">Logs a message with an exception.</div>
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<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</a></code></li>
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<h4>IPOJO_LOG_LEVEL_PROP</h4>
<pre>public static final&nbsp;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../../src-html/org/apache/felix/ipojo/util/Logger.html#line.40">IPOJO_LOG_LEVEL_PROP</a></pre>
<div class="block">The iPOJO default log level property.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../constant-values.html#org.apache.felix.ipojo.util.Logger.IPOJO_LOG_LEVEL_PROP">Constant Field Values</a></dd></dl>
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<pre>public static final&nbsp;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../../src-html/org/apache/felix/ipojo/util/Logger.html#line.47">IPOJO_LOG_LEVEL_HEADER</a></pre>
<div class="block">iPOJO log level manifest header.
The uppercase 'I' is important as BND removes all headers that do not
start with an uppercase are not added to the bundle.
Use an upper case to support bnd.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../constant-values.html#org.apache.felix.ipojo.util.Logger.IPOJO_LOG_LEVEL_HEADER">Constant Field Values</a></dd></dl>
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<pre>private static final&nbsp;<a href="http://www.osgi.org/javadoc/r4v43/cmpn/org/osgi/service/log/LogService.html?is-external=true" title="class or interface in org.osgi.service.log">LogService</a> <a href="../../../../../src-html/org/apache/felix/ipojo/util/Logger.html#line.51">m_defaultLogger</a></pre>
<div class="block">A shared log service implementation writing messages on the console.</div>
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<pre>private static final&nbsp;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../../src-html/org/apache/felix/ipojo/util/Logger.html#line.56">UNKNOWN_HEADER</a></pre>
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<pre>private final&nbsp;BundleContext <a href="../../../../../src-html/org/apache/felix/ipojo/util/Logger.html#line.61">m_context</a></pre>
<div class="block">The Bundle Context used to get the
log service.</div>
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<pre>private final&nbsp;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../../src-html/org/apache/felix/ipojo/util/Logger.html#line.65">m_name</a></pre>
<div class="block">The name of the logger.</div>
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<pre>private final&nbsp;int <a href="../../../../../src-html/org/apache/felix/ipojo/util/Logger.html#line.69">m_level</a></pre>
<div class="block">The trace level of this logger.</div>
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<div class="block">The instance associated to the logger if any.</div>
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<pre>public&nbsp;<a href="../../../../../src-html/org/apache/felix/ipojo/util/Logger.html#line.82">Logger</a>(BundleContext&nbsp;context,
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<div class="block">Creates a logger.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>context</code> - the bundle context</dd><dd><code>name</code> - the name of the logger</dd><dd><code>level</code> - the trace level</dd></dl>
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<pre>public&nbsp;<a href="../../../../../src-html/org/apache/felix/ipojo/util/Logger.html#line.95">Logger</a>(BundleContext&nbsp;context,
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<div class="block">Creates a logger.</div>
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<div class="block">Create a logger.
Uses the default logger level.</div>
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<a href="../../../../../org/apache/felix/ipojo/ComponentInstance.html" title="interface in org.apache.felix.ipojo">ComponentInstance</a>&nbsp;instance)</pre>
<div class="block">Create a logger.
Uses the default logger level.</div>
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<pre>private static&nbsp;int&nbsp;<a href="../../../../../src-html/org/apache/felix/ipojo/util/Logger.html#line.131">getDefaultLevel</a>(BundleContext&nbsp;context)</pre>
<div class="block">Gets the default logger level.
The property is searched inside the framework properties,
the system properties, and in the manifest from the given
bundle context. By default, set the level to <a href="../../../../../org/apache/felix/ipojo/util/Log.html#WARNING"><code>Log.WARNING</code></a>.</div>
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<div class="block">Logs a message.</div>
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<dt><span class="strong">Parameters:</span></dt><dd><code>level</code> - the level of the message</dd><dd><code>msg</code> - the the message to log</dd></dl>
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<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&nbsp;exception)</pre>
<div class="block">Logs a message with an exception.</div>
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<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/felix/ipojo/util/Log.html#log(int, java.lang.String, java.lang.Throwable)">log</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/felix/ipojo/util/Log.html" title="interface in org.apache.felix.ipojo.util">Log</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>level</code> - the level of the message</dd><dd><code>msg</code> - the message to log</dd><dd><code>exception</code> - the exception attached to the message</dd></dl>
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<pre>private&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/felix/ipojo/util/Logger.html#line.213">dispatch</a>(int&nbsp;level,
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<div class="block">Internal log method.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>level</code> - the level of the message.</dd><dd><code>msg</code> - the message to log</dd><dd><code>exception</code> - the exception attached to the message</dd></dl>
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<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&nbsp;error)</pre>
<div class="block">Invokes the error handler service is present.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>level</code> - the log level</dd><dd><code>msg</code> - the message</dd><dd><code>error</code> - the error</dd></dl>
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