1 files changed, 87 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/java-M1-final/java/das/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/QueryString.java b/sca-java-1.x/tags/java-M1-final/java/das/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/QueryString.java
new file mode 100644
index 0000000000..8304457a72
--- /dev/null
+++ b/sca-java-1.x/tags/java-M1-final/java/das/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/QueryString.java
@@ -0,0 +1,87 @@
+/**
+ *
+ *  Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
+ *
+ *  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.tuscany.das.rdb.impl;
+
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.apache.tuscany.das.rdb.util.DebugUtil;
+
+
+public class QueryString {
+
+	private final String unmodifiedQueryString;
+	private final String preparedString;
+	private HashMap parameters = new HashMap();
+	private static final boolean debug = false;
+	
+	public QueryString(String originalString) {
+		this.unmodifiedQueryString = originalString;
+		this.preparedString = replaceNamesAndSetIndexes(originalString);	
+	}
+
+	public String getPreparedString() {
+		return this.preparedString;
+	}
+	
+	public String getUnmodifiedString() {
+		return this.unmodifiedQueryString;
+	}
+	
+	public int getParameterIndex(String name) {
+		DebugUtil.debugln(getClass(), debug, "Looking for parameter index for: " + name);
+		//System.out.println(toString());
+		return ((Integer)parameters.get(name)).intValue();
+	}
+	
+	private String replaceNamesAndSetIndexes(String query) {
+		DebugUtil.debugln(getClass(), debug, "Parameterizing query: " + query);
+		Pattern p = Pattern.compile(":[\\S&&[^,()]]*");
+		Matcher m = p.matcher(query);
+
+		int index = 1;
+		while (m.find()) {
+			parameters.put(m.group().substring(1), new Integer(index));
+			query = m.replaceFirst("?");
+			m = p.matcher(query);
+			index++;
+		}
+		
+		DebugUtil.debugln(getClass(), debug, "Parameterized query: " + query);
+		return query;
+	}
+
+	
+	public String toString() {
+		StringBuffer buffer = new StringBuffer();
+		buffer.append("\nOriginal SQL: ");
+		buffer.append(unmodifiedQueryString);
+		buffer.append("\nPrepared SQL: ");
+		buffer.append(preparedString);
+		buffer.append("\nParameters: ");
+		Iterator i = parameters.keySet().iterator();
+		while ( i.hasNext() ) {
+			String key = (String)i.next();
+			buffer.append("\n");
+			buffer.append(key);
+		}
+		return buffer.toString();
+	}
+
+}