1 files changed, 159 insertions, 0 deletions
diff --git a/java/common/gentools/src/org/apache/qpid/gentools/Utils.java b/java/common/gentools/src/org/apache/qpid/gentools/Utils.java
new file mode 100644
index 0000000000..1cedaeea12
--- /dev/null
+++ b/java/common/gentools/src/org/apache/qpid/gentools/Utils.java
@@ -0,0 +1,159 @@
+/*
+ *
+ * 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.qpid.gentools;
+
+import org.w3c.dom.Attr;
+import org.w3c.dom.NamedNodeMap;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+
+public class Utils
+{
+    public final static String FILE_SEPARATOR = System.getProperty("file.separator");
+    public final static String LINE_SEPARATOR = System.getProperty("line.separator");
+
+    public final static String ATTRIBUTE_NAME = "name";
+    public final static String ATTRIBUTE_MAJOR = "major";
+    public final static String ATTRIBUTE_MINOR = "minor";
+    public final static String ATTRIBUTE_INDEX = "index";
+    public final static String ATTRIBUTE_LABEL = "label";
+    public final static String ATTRIBUTE_SYNCHRONOUS = "synchronous";
+    public final static String ATTRIBUTE_CONTENT = "content";
+    public final static String ATTRIBUTE_HANDLER = "handler";
+    public final static String ATTRIBUTE_DOMAIN = "domain";
+    public final static String ATTRIBUTE_VALUE = "value";
+    public final static String ATTRIBUTE_TYPE = "type"; // For compatibility with AMQP 8.0
+
+    public final static String ELEMENT_AMQP = "amqp";
+    public final static String ELEMENT_CHASSIS = "chassis";
+    public final static String ELEMENT_CLASS = "class";
+    public final static String ELEMENT_CODEGEN = "codegen";
+    public final static String ELEMENT_CONSTANT = "constant";
+    public final static String ELEMENT_DOMAIN = "domain";
+    public final static String ELEMENT_METHOD = "method";
+    public final static String ELEMENT_FIELD = "field";
+    public final static String ELEMENT_VERSION = "version";
+
+    // Attribute functions
+
+    public static String getNamedAttribute(Node n, String attrName) throws AmqpParseException
+    {
+        NamedNodeMap nnm = n.getAttributes();
+        if (nnm == null)
+        {
+            throw new AmqpParseException("Node \"" + n.getNodeName() + "\" has no attributes.");
+        }
+        Attr a = (Attr) nnm.getNamedItem(attrName);
+        if (a == null)
+        {
+            throw new AmqpParseException("Node \"" + n.getNodeName() + "\" has no attribute \"" + attrName + "\".");
+        }
+        return a.getNodeValue();
+    }
+
+    public static int getNamedIntegerAttribute(Node n, String attrName) throws AmqpParseException
+    {
+        return Integer.parseInt(getNamedAttribute(n, attrName));
+    }
+
+    // Element functions
+
+    public static Node findChild(Node n, String eltName) throws AmqpParseException
+    {
+        NodeList nl = n.getChildNodes();
+        for (int i = 0; i < nl.getLength(); i++)
+        {
+            Node cn = nl.item(i);
+            if (cn.getNodeName().compareTo(eltName) == 0)
+            {
+                return cn;
+            }
+        }
+        throw new AmqpParseException("Node \"" + n.getNodeName() +
+                                     "\" does not contain child element \"" + eltName + "\".");
+    }
+
+    // String functions
+
+    public static String firstUpper(String str)
+    {
+        if (!Character.isLetter(str.charAt(0)) || !Character.isLowerCase(str.charAt(0)))
+        {
+            return str;
+        }
+        StringBuffer sb = new StringBuffer(str);
+        sb.setCharAt(0, Character.toUpperCase(str.charAt(0)));
+        return sb.toString();
+    }
+
+    public static String firstLower(String str)
+    {
+        if (!Character.isUpperCase(str.charAt(0)))
+        {
+            return str;
+        }
+        StringBuffer sb = new StringBuffer(str);
+        sb.setCharAt(0, Character.toLowerCase(str.charAt(0)));
+        return sb.toString();
+    }
+
+    public static String createSpaces(int cnt)
+    {
+        StringBuffer sb = new StringBuffer();
+        for (int i = 0; i < cnt; i++)
+        {
+            sb.append(' ');
+        }
+        return sb.toString();
+    }
+
+    public static boolean containsOnlyDigits(String str)
+    {
+        boolean foundNonDigit = false;
+        for (int i = 0; i < str.length() && !foundNonDigit; i++)
+        {
+            if (!Character.isDigit(str.charAt(i)))
+            {
+                foundNonDigit = true;
+            }
+        }
+        return !foundNonDigit;
+    }
+
+    public static boolean containsOnlyDigitsAndDecimal(String str)
+    {
+        boolean foundNonDigit = false;
+        int decimalCntr = 0;
+        for (int i = 0; i < str.length() && !foundNonDigit && decimalCntr < 2; i++)
+        {
+            char ch = str.charAt(i);
+            if (!(Character.isDigit(ch) || ch == '.'))
+            {
+                foundNonDigit = true;
+            }
+            else if (ch == '.')
+            {
+                decimalCntr++;
+            }
+        }
+        return !foundNonDigit && decimalCntr < 2;
+    }
+}