1 files changed, 92 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/input/PropertyFileInputHandler.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/input/PropertyFileInputHandler.java
new file mode 100644
index 00000000..e1e3cf11
--- /dev/null
+++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/input/PropertyFileInputHandler.java
@@ -0,0 +1,92 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You 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.FileInputStream;
+import java.io.IOException;
+import java.util.Properties;
+
+import org.apache.tools.ant.BuildException;
+
+/**
+ * Reads input from a property file, the file name is read from the
+ * system property ant.input.properties, the prompt is the key for input.
+ *
+ * @since Ant 1.5
+ */
+public class PropertyFileInputHandler implements InputHandler {
+    private Properties props = null;
+
+    /**
+     * Name of the system property we expect to hold the file name.
+     */
+    public static final String FILE_NAME_KEY = "ant.input.properties";
+
+    /**
+     * Empty no-arg constructor.
+     */
+    public PropertyFileInputHandler() {
+    }
+
+    /**
+     * Picks up the input from a property, using the prompt as the
+     * name of the property.
+     * @param request an input request.
+     *
+     * @exception BuildException if no property of that name can be found.
+     */
+    public void handleInput(InputRequest request) throws BuildException {
+        readProps();
+
+        Object o = props.get(request.getPrompt());
+        if (o == null) {
+            throw new BuildException("Unable to find input for \'"
+                                     + request.getPrompt() + "\'");
+        }
+        request.setInput(o.toString());
+        if (!request.isInputValid()) {
+            throw new BuildException("Found invalid input " + o
+                                     + " for \'" + request.getPrompt() + "\'");
+        }
+    }
+
+    /**
+     * Reads the properties file if it hasn't already been read.
+     */
+    private synchronized void readProps() throws BuildException {
+        if (props == null) {
+            String propsFile = System.getProperty(FILE_NAME_KEY);
+            if (propsFile == null) {
+                throw new BuildException("System property "
+                                         + FILE_NAME_KEY
+                                         + " for PropertyFileInputHandler not"
+                                         + " set");
+            }
+
+            props = new Properties();
+
+            try {
+                props.load(new FileInputStream(propsFile));
+            } catch (IOException e) {
+                throw new BuildException("Couldn't load " + propsFile, e);
+            }
+        }
+    }
+
+}