Made the ExecManager support another method of execution that involves supplying an ExecOutputHandler

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@270555 13f79535-47bb-0310-9956-ffa450edef68

proposal/myrmidon/src/java/org/apache/myrmidon/framework/exec/ExecManager.java

@@ -53,4 +53,22 @@ public interface ExecManager
                  OutputStream error,
                  long timeout )
         throws IOException, ExecException /*TimeoutException*/;
+
+    /**
+     * Execute a process and wait for it to finish before
+     * returning. Note that this version of execute() does not allow you
+     * to specify input.
+     *
+     * @param  execMetaData the metaData for native command to execute
+     * @param  handler the handler to which line-orientated output of
+     *         process is directed for standard output and standard error
+     * @param  timeout the maximum duration in milliseconds that a process
+     *         can execute. The value must be positive or zero. If it is zero
+     *         then the process will not timeout. If the process times out it
+     *         will be forcibly shutdown and a TimeoutException thrown
+     */
+    int execute( ExecMetaData execMetaData,
+                 ExecOutputHandler handler,
+                 long timeout )
+        throws IOException, ExecException /*TimeoutException*/;
 }

proposal/myrmidon/src/java/org/apache/myrmidon/framework/exec/impl/DefaultExecManager.java

@@ -18,6 +18,7 @@ import org.apache.myrmidon.framework.exec.CommandLauncher;
 import org.apache.myrmidon.framework.exec.ExecException;
 import org.apache.myrmidon.framework.exec.ExecManager;
 import org.apache.myrmidon.framework.exec.ExecMetaData;
+import org.apache.myrmidon.framework.exec.ExecOutputHandler;
 import org.apache.myrmidon.framework.exec.launchers.DefaultCommandLauncher;
 import org.apache.myrmidon.framework.exec.launchers.MacCommandLauncher;
 import org.apache.myrmidon.framework.exec.launchers.ScriptCommandLauncher;
@@ -51,6 +52,20 @@ public class DefaultExecManager
         m_shellLauncher = createShellLauncher( antDir );
     }
 
+    /**
+     * Execute a process and wait for it to finish before
+     * returning.
+     */
+    public int execute( final ExecMetaData execMetaData,
+                        final ExecOutputHandler handler,
+                        long timeout )
+        throws IOException, ExecException /*TimeoutException*/
+    {
+        final LogOutputStream output = new LogOutputStream( handler, false );
+        final LogOutputStream error = new LogOutputStream( handler, true );
+        return execute( execMetaData, null, output, error, timeout );
+    }
+
     /**
      * Execute a process and wait for it to finish before
      * returning.