Subversion Repositories XServices

    <abstract>

      <title>Abstract</title>

      <para>In complex IT environments it is necessary to integrate 

      different information systems with each other, exchange data 

      between tools and automate actions and function calls depending 

      on events arising from user interaction. To meet the requirements 

      of integration building usually means to implement APIs and to 

      create tool-to-tool bridges. Web Services can help to clean up 

      bridges into interfaces as well as to abstract functions from 

      their underlying platform and implementation.</para>

      <para>These are the major goals of the loosely coupled 

      integration strategy which is in turn one essential idea of a 

      <para>provide a low level set of functions and web services. 

      These can be orchestrated into services and used in business 

      processes which make up the execution part of a SOA 

      environment.</para>

      <para>is an add-on to XBridgeNG 2.0. It runs standalone or in 

      combination with XBridgeNG. Pure XBridgeNG has two 

      components:</para>

      <para>

        <itemizedlist>

          <listitem>

            <para>XML Schema for item based data types (e.g. tickets 

            from a bug tracker system or a database record)</para>

          </listitem>

          <listitem>

            <para>Set of Apache Ant tasks to function as a bridge 

            between the XBridgeNG XML format at legacy 3rd party 

            software (e.g. HP Quality Center, Serena TeamTrack, 

            ...)</para>

          </listitem>

          <listitem>

            <para>The add Web Services (SOAP) wrapper around Apache Ant 

            tasks (since XBridgeNG 2.0)</para>

          </listitem>

        </itemizedlist>

      </para>

      <para>The current focus is on file-based operations. do not 

      contain an integration server or a process execution 

      engine.</para>

    </abstract>

    <sect1>

      <title>Prerequisites</title>

      <para>tbd.</para>

      <para>Sun Java SE 1.6.0</para>

      <para>Apache Tomcat 6</para>

    </sect1>

    <sect1>

      <para>tbd.</para>

      <para>In short: Deploy .WAR file to Apache Tomcat</para>

      <sect2>

        <title>Securing with Basic Authentication</title>

        <para>There is a quick guide explaining Basic Authentication 

        for Tomcat here:</para>

        <para>

        <ulink url="http://oreilly.com/pub/a/java/archive/tomcat-tips.html?page=1"/></para>

      </sect2>

      <sect2>

        <title>Limit access to</title>

        <para>Sometimes you&apos;ll only want to restrict access to to 

        only specified host names or IP addresses. This way, only 

        clients at those specified addresses can use the web services. 

        Tomcat provides two configuration values for that: 

        RemoteHostValve and RemoteAddrValve.</para>

        <para>These Valves allow you to filter requests by host name or 

        by IP address, and to allow or deny hosts that match. The 

        example below restricts access to the ArchiveService from any 

        machine that is not the local host.</para>

        <programlisting language="xml">&lt;Context path=&quot;/XService/ArchiveService&quot; ...&gt;

                <Valve className="org.apache.catalina.valves.RemoteAddrValve"

                allow="127.0.0.1" deny=""/>

            &lt;/Context&gt;</programlisting>

        <para>If no allow pattern is given, then patterns that match 

        the deny attribute patterns will be rejected, and all others 

        will be allowed. Similarly, if no deny pattern is given, 

        patterns that match the allow attribute will be allowed, and 

        all others will be denied.</para>

        <para>The &lt;context&gt; element must be placed into the 

        server.xml file (into &lt;engine&gt;&lt;host&gt;).</para>

      </sect2>

    </sect1>

    <section>

      WSDL is located at 

    </section>

    <section>

      <para>The ExecuteService bundles local and remote command 

      execution operations. Its WSDL is located at 

      http://server:port/XServices/ExecuteService?wsdl</para>

      <section>

        <title>runCommand</title>

        <para>Run an executable with arguments on the server providing 

        the web service. The command is run within the environment and 

        under the user privileges of the user who is running the Tomcat 

        Server.</para>

        <section>

          <title />

          <para />

          <table frame="all">

            <title>runCommand input parameters</title>

            <tgroup cols="4">

              <colspec colname="type" colnum="2"/>

              <colspec colname="required" colnum="3"/>

              <colspec colname="description" colnum="4"/>

              <thead>

                <row>

                  <entry>parameter</entry>

                  <entry>type</entry>

                  <entry>description</entry>

                </row>

              </thead>

              <tbody>

                <row>

                  <entry>executable</entry>

                  <entry>String</entry>

                  <entry>Yes</entry>

                  <entry>Command to be run. The command may be 

                  specified with full path using forward slash 

                  &quot;/&quot; as path separator.</entry>

                </row>

                <row>

                  <entry>argline</entry>

                  <entry>String</entry>

                  <entry>No</entry>

                  <entry>Any command line arguments</entry>

                </row>

              </tbody>

            </tgroup>

          </table>

          <para />

        </section>

      </section>

    </section>