RhinoTask

ネタがないので、なんとなく。
Java側でのJavaScriptの関数の定義はいい加減。

<?xml version="1.0" ?>

<project name="sql" default="all" basedir=".">
  <taskdef name="rhino" classname="foo.RhinoTask">

    <classpath path="${basedir}/bin;${basedir}/lib/js.jar" />

  </taskdef>
  <property name="foo" value="foofoo" />

  <property name="bar" value="barbar" />
  <target name="all">

    <rhino>

      print(foo);

      print(bar);

      property('hoge', 'hogehoge');

    </rhino>

    <echo message="${hoge}" />

  </target>

</project>

package foo;
import java.util.Iterator;

import java.util.Map;
import org.apache.tools.ant.BuildException;

import org.apache.tools.ant.Project;

import org.apache.tools.ant.Task;

import org.mozilla.javascript.BaseFunction;

import org.mozilla.javascript.Context;

import org.mozilla.javascript.Function;

import org.mozilla.javascript.Script;

import org.mozilla.javascript.Scriptable;

import org.mozilla.javascript.ScriptableObject;

import org.mozilla.javascript.tools.shell.Global;

import org.mozilla.javascript.tools.shell.ShellContextFactory;
public class RhinoTask extends Task {
    private String src = null;
    public void addText(String source) {

        this.src = source;

    }
    public void execute() throws BuildException {

        Context cx = Context.enter();
        try {

            run(cx);

        } finally {

            Context.exit();

        }

    }
    private void run(Context cx) {

        Script script = cx.compileString(src, "", 1, null);

        Global global = new Global();

        ShellContextFactory factory = new ShellContextFactory();

        global.init(factory);

        final Project project = getProject();

        Map props = project.getProperties();
        for (Iterator ite = props.keySet().iterator(); ite.hasNext();) {

            String name = (String) ite.next();

            Object value = props.get(name);

            putProperty(name, value, global);

        }
        putFunction("property", global, new BaseFunction() {

            public Object call(Context cx, Scriptable scope, Scriptable thisObj, java.lang.Object[] args) {

                String name = (String) args[0];

                String value = (String) args[1];

                project.setProperty(name, value);

                return Context.getUndefinedValue();

            }

        });
        Object result = script.exec(cx, global);
        if (result != Context.getUndefinedValue())

            System.err.println(Context.toString(result));

    }
    private void putProperty(String name, Object obj, Scriptable scope) {

        Object jsObj = Context.javaToJS(obj, scope);

        ScriptableObject.putProperty(scope, name, jsObj);

    }
    private void putFunction(String name, Scriptable scope, Function function) {

        ScriptableObject.putProperty(scope, name, function);

    }
}