<!-- JavaNLP ... include this file to find & compile .jsp servlets -->

<project name="commonbuildjsp" basedir="../..">

  <!-- This classpath is needed for jasper and javac in this target -->
  <path id="webapp.classpath">
    <fileset dir="${project.core}/lib/tomcat">
      <include name="*.jar"/>
    </fileset>
    <pathelement location="${build.path}"/>
    <pathelement location="${project.core}/lib/commons-logging.jar"/>
    <pathelement location="${project.core}/lib/javax.servlet.jar"/>
  </path>

  <target name="jsp" depends="classpath,compile">
    <!-- This target looks for all files that end with .jsp.  It then
         compiles each directory that those files reside in as a separate
         webapp.  Since there is currently only one webapp in all of core,
         the effort taken to make this as general as possible instead of
         hardcoding the path to that webapp was probably not effort well
         spent.  Still, one day there will be another webapp under core,
         and then who will be laughing?  I WILL.

         November 2011: There are now four different webapps under
         core.  Yeah.  I'm laughing. -->
    <echo message="${ant.project.name}" />

    <!-- This tool turns .jsp into .java -->
    <taskdef classname="org.apache.jasper.JspC" name="jasper2" >
      <classpath refid="webapp.classpath"/>
    </taskdef>

    <!-- This tool includes all sorts of useful stuff, like "if" and "for" -->
    <taskdef resource="net/sf/antcontrib/antlib.xml">
      <classpath>
        <pathelement location="${project.core}/lib/ant-contrib-1.0b3.jar"/>
      </classpath>
    </taskdef>

    <!-- This is a list of all the jsp files under this project -->
    <path id="webapp.jspfiles">
      <fileset dir="${source.path}">
        <include name="**/*.jsp"/>
      </fileset>
    </path>

    <!-- Turn all of the absolute paths into relative paths -->
    <pathconvert property="webapp.relativejspfiles"
                 refid="webapp.jspfiles">
      <map from="${source.path}${file.separator}" to=""/>
    </pathconvert>

    <!-- Make sure the paths are all sorted -->
    <sortlist property="webapp.sortedjspfiles"
              value="${webapp.relativejspfiles}"
              delimiter="${path.separator}" />

    <!-- We use this property to make sure we don't compile the same
         directory twice in a row.  This is where it helps to assume
         the paths are all sorted.  -->
    <property name="webapp.previouspath" value=""/>

    <!-- Now, for each file we found earlier... -->
    <for param="webapp.currentfile" list="${webapp.sortedjspfiles}"
         delimiter="${path.separator}">
      <sequential>
        <!-- First extract the directory containing the file.  This works
             on both linux and windows, assuming we don't have any \ or /
             in the file name, but that would just be silly.  However, it
             would still be nice to find a cleaner way of doing this.  -->
        <propertyregex property="webapp.path"
                       override="true"
                       input="@{webapp.currentfile}"
                       regexp="(.*)[\\/][^\\/]*.jsp"
                       select="\1" />

        <!-- Then build the webapp in that path -->
        <if>
          <not>
            <equals arg1="${webapp.path}" arg2="${webapp.previouspath}" />
          </not>
          <then>
            <echo message="Building .jsp ${webapp.path}" />
            <jasper2
               validateXml="false"
               uriroot="${source.path}/${webapp.path}"
               webXmlFragment="${build.path}/${webapp.path}/WEB-INF/generated_web.xml"
               outputDir="${build.path}/${webapp.path}/WEB-INF/src" />

            <mkdir dir="${build.path}/${webapp.path}/WEB-INF/classes"/>
            <mkdir dir="${build.path}/${webapp.path}/WEB-INF/lib"/>

            <javac destdir="${build.path}/${webapp.path}/WEB-INF/classes"
                   optimize="${compile.optimize}"
                   encoding="${compile.encoding}"
                   debug="${compile.debug}"
                   srcdir="${build.path}/${webapp.path}/WEB-INF/src"
                   includeantruntime="false"
	           excludes="**/*.smap">
              <classpath refid="webapp.classpath"/>
              <classpath refid="classpath"/>
              <classpath path="${build.path}"/>
              <include name="**" />
              <exclude name="tags/**" />
            </javac>
          </then>
        </if>
        <!-- Save the path we just looked at to ensure we don't
        compile it twice in a row.  The compiler will actually be
        smart enough to not compile twice, but even using it to check
        would be time consuming. -->
        <propertycopy name="webapp.previouspath" override="true"
                      from="webapp.path"/>
      </sequential>
    </for>
  </target>

</project>