Author: mbenson
Date: Thu Oct 6 12:14:49 2005
New Revision: 306851
URL: http://svn.apache.org/viewcvs?rev=306851&view=rev
Log:
greedy input handler; will consume stdin completely for unattended builds.
Added:
ant/core/trunk/src/main/org/apache/tools/ant/input/GreedyInputHandler.java
(with props)
Added:
ant/core/trunk/src/main/org/apache/tools/ant/input/GreedyInputHandler.java
URL:
http://svn.apache.org/viewcvs/ant/core/trunk/src/main/org/apache/tools/ant/input/GreedyInputHandler.java?rev=306851&view=auto
==============================================================================
--- ant/core/trunk/src/main/org/apache/tools/ant/input/GreedyInputHandler.java
(added)
+++ ant/core/trunk/src/main/org/apache/tools/ant/input/GreedyInputHandler.java
Thu Oct 6 12:14:49 2005
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2005 The Apache Software Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.apache.tools.ant.input;
+
+import java.io.InputStream;
+import java.io.IOException;
+import java.io.ByteArrayOutputStream;
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.taskdefs.StreamPumper;
+import org.apache.tools.ant.util.FileUtils;
+
+/**
+ * Prompts on System.err, reads input from System.in until EOF
+ *
+ * @since Ant 1.7
+ */
+public class GreedyInputHandler extends DefaultInputHandler {
+
+ private static final int BUFFER_SIZE = 1024;
+
+ /**
+ * Empty no-arg constructor
+ */
+ public GreedyInputHandler() {
+ }
+
+ /**
+ * Prompts and requests input.
+ * @param request the request to handle
+ * @throws BuildException if not possible to read from console,
+ * or if input is invalid.
+ */
+ public void handleInput(InputRequest request) throws BuildException {
+ String prompt = getPrompt(request);
+ InputStream in = null;
+ try {
+ in = getInputStream();
+ System.err.println(prompt);
+ System.err.flush();
+ ByteArrayOutputStream baos = new ByteArrayOutputStream();
+ StreamPumper p = new StreamPumper(in, baos);
+ Thread t = new Thread(p);
+ t.start();
+ try {
+ t.join();
+ } catch (InterruptedException e) {
+ try {
+ t.join();
+ } catch (InterruptedException e2) {
+ }
+ }
+ request.setInput(new String(baos.toByteArray()));
+ if (!(request.isInputValid())) {
+ throw new BuildException(
+ "Received invalid console input");
+ }
+ if (p.getException() != null) {
+ throw new BuildException(
+ "Failed to read input from console", p.getException());
+ }
+ } finally {
+ FileUtils.close(in);
+ }
+ }
+}
Propchange:
ant/core/trunk/src/main/org/apache/tools/ant/input/GreedyInputHandler.java
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