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NetUtils (Hadoop 0.20.2 API)
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org.apache.hadoop.net</FONT>
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Class NetUtils</H2>
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  <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.net.NetUtils</B>
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<DT><PRE>public class <B>NetUtils</B><DT>extends <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></DL>
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<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#NetUtils()">NetUtils</A></B>()</CODE>

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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#addStaticResolution(java.lang.String, java.lang.String)">addStaticResolution</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;host,
                    <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;resolvedName)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adds a static resolution for host.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#connect(java.net.Socket, java.net.SocketAddress, int)">connect</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true" title="class or interface in java.net">Socket</A>&nbsp;socket,
        <A HREF="http://java.sun.com/javase/6/docs/api/java/net/SocketAddress.html?is-external=true" title="class or interface in java.net">SocketAddress</A>&nbsp;endpoint,
        int&nbsp;timeout)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This is a drop-in replacement for 
 <A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true#connect(java.net.SocketAddress, int)" title="class or interface in java.net"><CODE>Socket.connect(SocketAddress, int)</CODE></A>.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/net/InetSocketAddress.html?is-external=true" title="class or interface in java.net">InetSocketAddress</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#createSocketAddr(java.lang.String)">createSocketAddr</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;target)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Util method to build socket addr from either:
   <host>:<post>
   <fs>://<host>:<port>/<path></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/net/InetSocketAddress.html?is-external=true" title="class or interface in java.net">InetSocketAddress</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#createSocketAddr(java.lang.String, int)">createSocketAddr</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;target,
                 int&nbsp;defaultPort)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Util method to build socket addr from either:
   <host>
   <host>:<post>
   <fs>://<host>:<port>/<path></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A>&lt;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[]&gt;</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getAllStaticResolutions()">getAllStaticResolutions</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This is used to get all the resolutions that were added using
 <A HREF="../../../../org/apache/hadoop/net/NetUtils.html#addStaticResolution(java.lang.String, java.lang.String)"><CODE>addStaticResolution(String, String)</CODE></A>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/net/InetSocketAddress.html?is-external=true" title="class or interface in java.net">InetSocketAddress</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getConnectAddress(org.apache.hadoop.ipc.Server)">getConnectAddress</A></B>(<A HREF="../../../../org/apache/hadoop/ipc/Server.html" title="class in org.apache.hadoop.ipc">Server</A>&nbsp;server)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns InetSocketAddress that a client can use to 
 connect to the server.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/javax/net/SocketFactory.html?is-external=true" title="class or interface in javax.net">SocketFactory</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getDefaultSocketFactory(org.apache.hadoop.conf.Configuration)">getDefaultSocketFactory</A></B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the default socket factory as specified by the configuration
 parameter <tt>hadoop.rpc.socket.factory.default</tt></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getInputStream(java.net.Socket)">getInputStream</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true" title="class or interface in java.net">Socket</A>&nbsp;socket)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Same as getInputStream(socket, socket.getSoTimeout()).<br><br>
 
 From documentation for <A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getInputStream(java.net.Socket, long)"><CODE>getInputStream(Socket, long)</CODE></A>:<br>
 Returns InputStream for the socket.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getInputStream(java.net.Socket, long)">getInputStream</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true" title="class or interface in java.net">Socket</A>&nbsp;socket,
               long&nbsp;timeout)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns InputStream for the socket.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getOutputStream(java.net.Socket)">getOutputStream</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true" title="class or interface in java.net">Socket</A>&nbsp;socket)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Same as getOutputStream(socket, 0).</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getOutputStream(java.net.Socket, long)">getOutputStream</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true" title="class or interface in java.net">Socket</A>&nbsp;socket,
                long&nbsp;timeout)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns OutputStream for the socket.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getServerAddress(org.apache.hadoop.conf.Configuration, java.lang.String, java.lang.String, java.lang.String)">getServerAddress</A></B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf,
                 <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;oldBindAddressName,
                 <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;oldPortName,
                 <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;newBindAddressName)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/javax/net/SocketFactory.html?is-external=true" title="class or interface in javax.net">SocketFactory</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getSocketFactory(org.apache.hadoop.conf.Configuration, java.lang.Class)">getSocketFactory</A></B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf,
                 <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A>&lt;?&gt;&nbsp;clazz)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the socket factory for the given class according to its
 configuration parameter
 <tt>hadoop.rpc.socket.factory.class.&lt;ClassName&gt;</tt>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/javax/net/SocketFactory.html?is-external=true" title="class or interface in javax.net">SocketFactory</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getSocketFactoryFromProperty(org.apache.hadoop.conf.Configuration, java.lang.String)">getSocketFactoryFromProperty</A></B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf,
                             <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;propValue)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the socket factory corresponding to the given proxy URI.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getStaticResolution(java.lang.String)">getStaticResolution</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;host)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Retrieves the resolved name for the passed host.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#normalizeHostName(java.lang.String)">normalizeHostName</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;name)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Given a string representation of a host, return its ip address
 in textual presentation.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A>&lt;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&gt;</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#normalizeHostNames(java.util.Collection)">normalizeHostNames</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</A>&lt;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&gt;&nbsp;names)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Given a collection of string representation of hosts, return a list of
 corresponding IP addresses in the textual representation.</TD>
</TR>
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<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH>
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<A NAME="NetUtils()"><!-- --></A><H3>
NetUtils</H3>
<PRE>
public <B>NetUtils</B>()</PRE>
<DL>
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<A NAME="getSocketFactory(org.apache.hadoop.conf.Configuration, java.lang.Class)"><!-- --></A><H3>
getSocketFactory</H3>
<PRE>
public static <A HREF="http://java.sun.com/javase/6/docs/api/javax/net/SocketFactory.html?is-external=true" title="class or interface in javax.net">SocketFactory</A> <B>getSocketFactory</B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf,
                                             <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A>&lt;?&gt;&nbsp;clazz)</PRE>
<DL>
<DD>Get the socket factory for the given class according to its
 configuration parameter
 <tt>hadoop.rpc.socket.factory.class.&lt;ClassName&gt;</tt>. When no
 such parameter exists then fall back on the default socket factory as
 configured by <tt>hadoop.rpc.socket.factory.class.default</tt>. If
 this default socket factory is not configured, then fall back on the JVM
 default socket factory.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>conf</CODE> - the configuration<DD><CODE>clazz</CODE> - the class (usually a <A HREF="../../../../org/apache/hadoop/ipc/VersionedProtocol.html" title="interface in org.apache.hadoop.ipc"><CODE>VersionedProtocol</CODE></A>)
<DT><B>Returns:</B><DD>a socket factory</DL>
</DD>
</DL>
<HR>

<A NAME="getDefaultSocketFactory(org.apache.hadoop.conf.Configuration)"><!-- --></A><H3>
getDefaultSocketFactory</H3>
<PRE>
public static <A HREF="http://java.sun.com/javase/6/docs/api/javax/net/SocketFactory.html?is-external=true" title="class or interface in javax.net">SocketFactory</A> <B>getDefaultSocketFactory</B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf)</PRE>
<DL>
<DD>Get the default socket factory as specified by the configuration
 parameter <tt>hadoop.rpc.socket.factory.default</tt>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>conf</CODE> - the configuration
<DT><B>Returns:</B><DD>the default socket factory as specified in the configuration or
         the JVM default socket factory if the configuration does not
         contain a default socket factory property.</DL>
</DD>
</DL>
<HR>

<A NAME="getSocketFactoryFromProperty(org.apache.hadoop.conf.Configuration, java.lang.String)"><!-- --></A><H3>
getSocketFactoryFromProperty</H3>
<PRE>
public static <A HREF="http://java.sun.com/javase/6/docs/api/javax/net/SocketFactory.html?is-external=true" title="class or interface in javax.net">SocketFactory</A> <B>getSocketFactoryFromProperty</B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf,
                                                         <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;propValue)</PRE>
<DL>
<DD>Get the socket factory corresponding to the given proxy URI. If the
 given proxy URI corresponds to an absence of configuration parameter,
 returns null. If the URI is malformed raises an exception.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>propValue</CODE> - the property which is the class name of the
        SocketFactory to instantiate; assumed non null and non empty.
<DT><B>Returns:</B><DD>a socket factory as defined in the property value.</DL>
</DD>
</DL>
<HR>

<A NAME="createSocketAddr(java.lang.String)"><!-- --></A><H3>
createSocketAddr</H3>
<PRE>
public static <A HREF="http://java.sun.com/javase/6/docs/api/java/net/InetSocketAddress.html?is-external=true" title="class or interface in java.net">InetSocketAddress</A> <B>createSocketAddr</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;target)</PRE>
<DL>
<DD>Util method to build socket addr from either:
   <host>:<post>
   <fs>://<host>:<port>/<path>
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="createSocketAddr(java.lang.String, int)"><!-- --></A><H3>
createSocketAddr</H3>
<PRE>
public static <A HREF="http://java.sun.com/javase/6/docs/api/java/net/InetSocketAddress.html?is-external=true" title="class or interface in java.net">InetSocketAddress</A> <B>createSocketAddr</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;target,
                                                 int&nbsp;defaultPort)</PRE>
<DL>
<DD>Util method to build socket addr from either:
   <host>
   <host>:<post>
   <fs>://<host>:<port>/<path>
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getServerAddress(org.apache.hadoop.conf.Configuration, java.lang.String, java.lang.String, java.lang.String)"><!-- --></A><H3>
getServerAddress</H3>
<PRE>
<FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A>
</FONT>public static <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getServerAddress</B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf,
                                                 <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;oldBindAddressName,
                                                 <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;oldPortName,
                                                 <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;newBindAddressName)</PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;
<P>
<DD>Handle the transition from pairs of attributes specifying a host and port
 to a single colon separated one.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>conf</CODE> - the configuration to check<DD><CODE>oldBindAddressName</CODE> - the old address attribute name<DD><CODE>oldPortName</CODE> - the old port attribute name<DD><CODE>newBindAddressName</CODE> - the new combined name
<DT><B>Returns:</B><DD>the complete address from the configuration</DL>
</DD>
</DL>
<HR>

<A NAME="addStaticResolution(java.lang.String, java.lang.String)"><!-- --></A><H3>
addStaticResolution</H3>
<PRE>
public static void <B>addStaticResolution</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;host,
                                       <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;resolvedName)</PRE>
<DL>
<DD>Adds a static resolution for host. This can be used for setting up
 hostnames with names that are fake to point to a well known host. For e.g.
 in some testcases we require to have daemons with different hostnames
 running on the same machine. In order to create connections to these
 daemons, one can set up mappings from those hostnames to "localhost".
 <A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getStaticResolution(java.lang.String)"><CODE>getStaticResolution(String)</CODE></A> can be used to query for
 the actual hostname.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>host</CODE> - <DD><CODE>resolvedName</CODE> - </DL>
</DD>
</DL>
<HR>

<A NAME="getStaticResolution(java.lang.String)"><!-- --></A><H3>
getStaticResolution</H3>
<PRE>
public static <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getStaticResolution</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;host)</PRE>
<DL>
<DD>Retrieves the resolved name for the passed host. The resolved name must
 have been set earlier using 
 <A HREF="../../../../org/apache/hadoop/net/NetUtils.html#addStaticResolution(java.lang.String, java.lang.String)"><CODE>addStaticResolution(String, String)</CODE></A>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>host</CODE> - 
<DT><B>Returns:</B><DD>the resolution</DL>
</DD>
</DL>
<HR>

<A NAME="getAllStaticResolutions()"><!-- --></A><H3>
getAllStaticResolutions</H3>
<PRE>
public static <A HREF="http://java.sun.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A>&lt;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[]&gt; <B>getAllStaticResolutions</B>()</PRE>
<DL>
<DD>This is used to get all the resolutions that were added using
 <A HREF="../../../../org/apache/hadoop/net/NetUtils.html#addStaticResolution(java.lang.String, java.lang.String)"><CODE>addStaticResolution(String, String)</CODE></A>. The return
 value is a List each element of which contains an array of String 
 of the form String[0]=hostname, String[1]=resolved-hostname
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the list of resolutions</DL>
</DD>
</DL>
<HR>

<A NAME="getConnectAddress(org.apache.hadoop.ipc.Server)"><!-- --></A><H3>
getConnectAddress</H3>
<PRE>
public static <A HREF="http://java.sun.com/javase/6/docs/api/java/net/InetSocketAddress.html?is-external=true" title="class or interface in java.net">InetSocketAddress</A> <B>getConnectAddress</B>(<A HREF="../../../../org/apache/hadoop/ipc/Server.html" title="class in org.apache.hadoop.ipc">Server</A>&nbsp;server)</PRE>
<DL>
<DD>Returns InetSocketAddress that a client can use to 
 connect to the server. Server.getListenerAddress() is not correct when
 the server binds to "0.0.0.0". This returns "127.0.0.1:port" when
 the getListenerAddress() returns "0.0.0.0:port".
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>server</CODE> - 
<DT><B>Returns:</B><DD>socket address that a client can use to connect to the server.</DL>
</DD>
</DL>
<HR>

<A NAME="getInputStream(java.net.Socket)"><!-- --></A><H3>
getInputStream</H3>
<PRE>
public static <A HREF="http://java.sun.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A> <B>getInputStream</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true" title="class or interface in java.net">Socket</A>&nbsp;socket)
                                  throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Same as getInputStream(socket, socket.getSoTimeout()).<br><br>
 
 From documentation for <A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getInputStream(java.net.Socket, long)"><CODE>getInputStream(Socket, long)</CODE></A>:<br>
 Returns InputStream for the socket. If the socket has an associated
 SocketChannel then it returns a 
 <A HREF="../../../../org/apache/hadoop/net/SocketInputStream.html" title="class in org.apache.hadoop.net"><CODE>SocketInputStream</CODE></A> with the given timeout. If the socket does not
 have a channel, <A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true#getInputStream()" title="class or interface in java.net"><CODE>Socket.getInputStream()</CODE></A> is returned. In the later
 case, the timeout argument is ignored and the timeout set with 
 <A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true#setSoTimeout(int)" title="class or interface in java.net"><CODE>Socket.setSoTimeout(int)</CODE></A> applies for reads.<br><br>

 Any socket created using socket factories returned by <A HREF="../../../../org/apache/hadoop/net/NetUtils.html#NetUtils()"><CODE>NetUtils()</CODE></A>,
 must use this interface instead of <A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true#getInputStream()" title="class or interface in java.net"><CODE>Socket.getInputStream()</CODE></A>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>socket</CODE> - 
<DT><B>Returns:</B><DD>InputStream for reading from the socket.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE><DT><B>See Also:</B><DD><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getInputStream(java.net.Socket, long)"><CODE>getInputStream(Socket, long)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getInputStream(java.net.Socket, long)"><!-- --></A><H3>
getInputStream</H3>
<PRE>
public static <A HREF="http://java.sun.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A> <B>getInputStream</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true" title="class or interface in java.net">Socket</A>&nbsp;socket,
                                         long&nbsp;timeout)
                                  throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Returns InputStream for the socket. If the socket has an associated
 SocketChannel then it returns a 
 <A HREF="../../../../org/apache/hadoop/net/SocketInputStream.html" title="class in org.apache.hadoop.net"><CODE>SocketInputStream</CODE></A> with the given timeout. If the socket does not
 have a channel, <A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true#getInputStream()" title="class or interface in java.net"><CODE>Socket.getInputStream()</CODE></A> is returned. In the later
 case, the timeout argument is ignored and the timeout set with 
 <A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true#setSoTimeout(int)" title="class or interface in java.net"><CODE>Socket.setSoTimeout(int)</CODE></A> applies for reads.<br><br>
 
 Any socket created using socket factories returned by <A HREF="../../../../org/apache/hadoop/net/NetUtils.html#NetUtils()"><CODE>NetUtils()</CODE></A>,
 must use this interface instead of <A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true#getInputStream()" title="class or interface in java.net"><CODE>Socket.getInputStream()</CODE></A>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>socket</CODE> - <DD><CODE>timeout</CODE> - timeout in milliseconds. This may not always apply. zero
        for waiting as long as necessary.
<DT><B>Returns:</B><DD>InputStream for reading from the socket.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE><DT><B>See Also:</B><DD><A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true#getChannel()" title="class or interface in java.net"><CODE>Socket.getChannel()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getOutputStream(java.net.Socket)"><!-- --></A><H3>
getOutputStream</H3>
<PRE>
public static <A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</A> <B>getOutputStream</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true" title="class or interface in java.net">Socket</A>&nbsp;socket)
                                    throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Same as getOutputStream(socket, 0). Timeout of zero implies write will
 wait until data is available.<br><br>
 
 From documentation for <A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getOutputStream(java.net.Socket, long)"><CODE>getOutputStream(Socket, long)</CODE></A> : <br>
 Returns OutputStream for the socket. If the socket has an associated
 SocketChannel then it returns a 
 <A HREF="../../../../org/apache/hadoop/net/SocketOutputStream.html" title="class in org.apache.hadoop.net"><CODE>SocketOutputStream</CODE></A> with the given timeout. If the socket does not
 have a channel, <A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true#getOutputStream()" title="class or interface in java.net"><CODE>Socket.getOutputStream()</CODE></A> is returned. In the later
 case, the timeout argument is ignored and the write will wait until 
 data is available.<br><br>
 
 Any socket created using socket factories returned by <A HREF="../../../../org/apache/hadoop/net/NetUtils.html#NetUtils()"><CODE>NetUtils()</CODE></A>,
 must use this interface instead of <A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true#getOutputStream()" title="class or interface in java.net"><CODE>Socket.getOutputStream()</CODE></A>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>socket</CODE> - 
<DT><B>Returns:</B><DD>OutputStream for writing to the socket.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE><DT><B>See Also:</B><DD><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#getOutputStream(java.net.Socket, long)"><CODE>getOutputStream(Socket, long)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getOutputStream(java.net.Socket, long)"><!-- --></A><H3>
getOutputStream</H3>
<PRE>
public static <A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</A> <B>getOutputStream</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true" title="class or interface in java.net">Socket</A>&nbsp;socket,
                                           long&nbsp;timeout)
                                    throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Returns OutputStream for the socket. If the socket has an associated
 SocketChannel then it returns a 
 <A HREF="../../../../org/apache/hadoop/net/SocketOutputStream.html" title="class in org.apache.hadoop.net"><CODE>SocketOutputStream</CODE></A> with the given timeout. If the socket does not
 have a channel, <A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true#getOutputStream()" title="class or interface in java.net"><CODE>Socket.getOutputStream()</CODE></A> is returned. In the later
 case, the timeout argument is ignored and the write will wait until 
 data is available.<br><br>
 
 Any socket created using socket factories returned by <A HREF="../../../../org/apache/hadoop/net/NetUtils.html#NetUtils()"><CODE>NetUtils()</CODE></A>,
 must use this interface instead of <A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true#getOutputStream()" title="class or interface in java.net"><CODE>Socket.getOutputStream()</CODE></A>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>socket</CODE> - <DD><CODE>timeout</CODE> - timeout in milliseconds. This may not always apply. zero
        for waiting as long as necessary.
<DT><B>Returns:</B><DD>OutputStream for writing to the socket.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE><DT><B>See Also:</B><DD><A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true#getChannel()" title="class or interface in java.net"><CODE>Socket.getChannel()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="connect(java.net.Socket, java.net.SocketAddress, int)"><!-- --></A><H3>
connect</H3>
<PRE>
public static void <B>connect</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true" title="class or interface in java.net">Socket</A>&nbsp;socket,
                           <A HREF="http://java.sun.com/javase/6/docs/api/java/net/SocketAddress.html?is-external=true" title="class or interface in java.net">SocketAddress</A>&nbsp;endpoint,
                           int&nbsp;timeout)
                    throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>This is a drop-in replacement for 
 <A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true#connect(java.net.SocketAddress, int)" title="class or interface in java.net"><CODE>Socket.connect(SocketAddress, int)</CODE></A>.
 In the case of normal sockets that don't have associated channels, this 
 just invokes <code>socket.connect(endpoint, timeout)</code>. If 
 <code>socket.getChannel()</code> returns a non-null channel,
 connect is implemented using Hadoop's selectors. This is done mainly
 to avoid Sun's connect implementation from creating thread-local 
 selectors, since Hadoop does not have control on when these are closed
 and could end up taking all the available file descriptors.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>socket</CODE> - <DD><CODE>endpoint</CODE> - <DD><CODE>timeout</CODE> - - timeout in milliseconds
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE><DT><B>See Also:</B><DD><A HREF="http://java.sun.com/javase/6/docs/api/java/net/Socket.html?is-external=true#connect(java.net.SocketAddress, int)" title="class or interface in java.net"><CODE>Socket.connect(java.net.SocketAddress, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="normalizeHostName(java.lang.String)"><!-- --></A><H3>
normalizeHostName</H3>
<PRE>
public static <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>normalizeHostName</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;name)</PRE>
<DL>
<DD>Given a string representation of a host, return its ip address
 in textual presentation.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - a string representation of a host:
             either a textual representation its IP address or its host name
<DT><B>Returns:</B><DD>its IP address in the string format</DL>
</DD>
</DL>
<HR>

<A NAME="normalizeHostNames(java.util.Collection)"><!-- --></A><H3>
normalizeHostNames</H3>
<PRE>
public static <A HREF="http://java.sun.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A>&lt;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&gt; <B>normalizeHostNames</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</A>&lt;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&gt;&nbsp;names)</PRE>
<DL>
<DD>Given a collection of string representation of hosts, return a list of
 corresponding IP addresses in the textual representation.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>names</CODE> - a collection of string representations of hosts
<DT><B>Returns:</B><DD>a list of corresponding IP addresses in the string format<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/hadoop/net/NetUtils.html#normalizeHostName(java.lang.String)"><CODE>normalizeHostName(String)</CODE></A></DL>
</DD>
</DL>
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