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From bil...@apache.org
Subject svn commit: r1210600 [15/16] - in /incubator/accumulo/trunk/contrib/accumulo_sample: ./ ingest/ ingest/src/main/java/aggregator/ ingest/src/main/java/ingest/ ingest/src/main/java/iterator/ ingest/src/main/java/normalizer/ ingest/src/main/java/protobuf/...
Date Mon, 05 Dec 2011 20:05:51 GMT
Modified: incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/parser/TreeBuilder.java
URL: http://svn.apache.org/viewvc/incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/parser/TreeBuilder.java?rev=1210600&r1=1210599&r2=1210600&view=diff
==============================================================================
--- incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/parser/TreeBuilder.java (original)
+++ incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/parser/TreeBuilder.java Mon Dec  5 20:05:49 2011
@@ -1,19 +1,19 @@
 /*
-* 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.
-*/
+ * 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 parser;
 
 import java.io.StringReader;
@@ -81,597 +81,595 @@ import parser.QueryParser.TermResult;
 import com.google.common.collect.Multimap;
 
 /**
- * Class that parses the query and returns a tree of TreeNode's. This class
- * rolls up clauses that are below like conjunctions (AND, OR) for the purposes
- * of creating intersecting iterators.
+ * Class that parses the query and returns a tree of TreeNode's. This class rolls up clauses that are below like conjunctions (AND, OR) for the purposes of
+ * creating intersecting iterators.
  * 
  */
 public class TreeBuilder implements ParserVisitor {
-	
-	class RootNode extends JexlNode {
-
-		public RootNode(int id) {
-			super(id);
-		}
-
-		public RootNode(Parser p, int id) {
-			super(p, id);
-		}
-		
-	}
-	
-	private TreeNode rootNode = null;
-	private TreeNode currentNode = null;
-	private boolean currentlyInCheckChildren = false;
-				
-	public TreeBuilder(String query) throws ParseException {
-			Parser p = new Parser(new StringReader(";"));
-			ASTJexlScript script = p.parse(new StringReader(query), null);
-			//Check to see if the child node is an AND or OR. If not, then
-			//there must be just a single value in the query expression
-			rootNode = new TreeNode();
-			rootNode.setType(RootNode.class);
-			currentNode = rootNode;
-			EvaluationContext ctx = new EvaluationContext();
-			script.childrenAccept(this, ctx);			
-	}
-	
-	public TreeBuilder(ASTJexlScript script) {
-		//Check to see if the child node is an AND or OR. If not, then
-		//there must be just a single value in the query expression
-		rootNode = new TreeNode();
-		rootNode.setType(RootNode.class);
-		currentNode = rootNode;
-		EvaluationContext ctx = new EvaluationContext();
-		script.childrenAccept(this, ctx);
-	}
-	
-	public TreeNode getRootNode() {
-		return this.rootNode;
-	}
-	
-	public Object visit(SimpleNode node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTJexlScript node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTBlock node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTAmbiguous node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTIfStatement node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTWhileStatement node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTForeachStatement node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTAssignment node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTTernaryNode node, Object data) {
-		return null;
-	}
-	
-	/**
-	 * @param node
-	 * @param failClass
-	 * @return false if any of the nodes equals the fail class or contain a NOT in the subtree
-	 */
-	private boolean nodeCheck(JexlNode node, Class<?> failClass) {
-		if (node.getClass().equals(failClass) || node.getClass().equals(ASTNotNode.class))
-			return false;
-		else {
-			for (int i = 0; i < node.jjtGetNumChildren(); i++) {
-				if (!nodeCheck(node.jjtGetChild(i), failClass))
-					return false;
-			}			
-		}
-		return true;
-	}
-
-	/**
-	 * Checks to see if all of the child nodes are of the same type (AND/OR)
-	 * and if so then aggregates all of the child terms. If not returns null.
-	 * 
-	 * @param parent
-	 * @param parentNode
-	 * @return Map of field names to query terms or null
-	 */
-	private Multimap<String,QueryTerm> checkChildren(JexlNode parent, EvaluationContext ctx) {
-		//If the current node is an AND, then make sure that there is no
-		//OR descendant node, and vice versa. If this is true, then we call
-		//roll up all of the descendent values.
-		this.currentlyInCheckChildren = true;
-		Multimap<String,QueryTerm> rolledUpTerms = null;
-		boolean result = false;
-		if (parent.getClass().equals(ASTOrNode.class)) {
-			for (int i = 0; i < parent.jjtGetNumChildren(); i++) {
-				result = nodeCheck(parent.jjtGetChild(i), ASTAndNode.class);
-				if (!result)
-					break;
-			}
-		} else {
-			for (int i = 0; i < parent.jjtGetNumChildren(); i++) {
-				result = nodeCheck(parent.jjtGetChild(i), ASTOrNode.class);
-				if (!result)
-					break;
-			}			
-		}
-		if (result) {
-			//Set current node to a fake node and
-			//roll up the children from this node using the visitor pattern.
-			TreeNode rollupFakeNode = new TreeNode();
-			TreeNode previous = this.currentNode;
-			this.currentNode = rollupFakeNode;
-			//Run the visitor with the fake node.
-			parent.childrenAccept(this, ctx);
-			//Get the terms from the fake node
-			rolledUpTerms = this.currentNode.getTerms();
-			//Reset the current node pointer
-			this.currentNode = previous;
-		}
-		this.currentlyInCheckChildren = false;
-		return rolledUpTerms;
-	}
-	
-	public Object visit(ASTOrNode node, Object data) {
-		boolean previouslyInOrContext = false;
-		EvaluationContext ctx = null;
-		if (null != data && data instanceof EvaluationContext) {
-			ctx = (EvaluationContext) data;
-			previouslyInOrContext = ctx.inOrContext;
-		} else {
-			ctx = new EvaluationContext();
-		}
-		ctx.inOrContext = true;
-		//Are we being called from the checkChildren method? If so, then we
-		//are rolling up terms. If not, then we need to call check children.
-		if (currentlyInCheckChildren ) {
-			//Process both sides of this node.
-	        node.jjtGetChild(0).jjtAccept(this, data);
-	        node.jjtGetChild(1).jjtAccept(this, data);			
-		} else {
-			//Create a new OR node under the current node.
-			TreeNode orNode = new TreeNode();
-			orNode.setType(ASTOrNode.class);
-			orNode.setParent(this.currentNode);
-			this.currentNode.getChildren().add(orNode);
-			Multimap<String,QueryTerm> terms = checkChildren(node, ctx);
-			if (terms == null) {
-				//Then there was no rollup, set the current node to the orNode
-				//and process the children. Be sure to set the current Node to 
-				//the or node in between calls because we could be processing
-				//an AND node below and the current node will have been switched.
-				//Process both sides of this node.
-				currentNode = orNode;
-		        node.jjtGetChild(0).jjtAccept(this, data);
-				currentNode = orNode;
-		        node.jjtGetChild(1).jjtAccept(this, data);			
-			} else {
-				//There was a rollup, don't process the children and set the terms
-				//on the or node.
-				orNode.setTerms(terms);
-			}
-		}
-       //reset the state
-        if (null != data && !previouslyInOrContext)
-        	ctx.inOrContext = false;
-		return null;
-	}
-
-	public Object visit(ASTAndNode node, Object data) {
-		boolean previouslyInAndContext = false;
-		EvaluationContext ctx = null;
-		if (null != data && data instanceof EvaluationContext) {
-			ctx = (EvaluationContext) data;
-			previouslyInAndContext = ctx.inAndContext;
-		} else {
-			ctx = new EvaluationContext();
-		}
-		ctx.inAndContext = true;
-		//Are we being called from the checkChildren method? If so, then we
-		//are rolling up terms. If not, then we need to call check children.
-		if (currentlyInCheckChildren ) {
-			//Process both sides of this node.
-	        node.jjtGetChild(0).jjtAccept(this, data);
-	        node.jjtGetChild(1).jjtAccept(this, data);			
-		} else {
-			//Create a new And node under the current node.
-			TreeNode andNode = new TreeNode();
-			andNode.setType(ASTAndNode.class);
-			andNode.setParent(this.currentNode);
-			this.currentNode.getChildren().add(andNode);
-			Multimap<String,QueryTerm> terms = checkChildren(node, ctx);
-			if (terms == null) {
-				//Then there was no rollup, set the current node to the orNode
-				//and process the children. Be sure to set the current Node to 
-				//the and node in between calls because we could be processing
-				//an OR node below and the current node will have been switched.
-				//Process both sides of this node.
-				currentNode = andNode;
-		        node.jjtGetChild(0).jjtAccept(this, data);
-				currentNode = andNode;
-		        node.jjtGetChild(1).jjtAccept(this, data);			
-			} else {
-				//There was a rollup, don't process the children and set the terms
-				//on the or node.
-				andNode.setTerms(terms);
-			}
-		}
-        if (null != data && !previouslyInAndContext)
-        	ctx.inAndContext = false;
-		return null;
-	}
-
-	public Object visit(ASTBitwiseOrNode node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTBitwiseXorNode node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTBitwiseAndNode node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTEQNode node, Object data) {
-		StringBuilder fieldName = new StringBuilder();
-		ObjectHolder value = new ObjectHolder();
-		//Process both sides of this node.
-        Object left = node.jjtGetChild(0).jjtAccept(this, data);
-        Object right = node.jjtGetChild(1).jjtAccept(this, data);
-        //Ignore functions in the query
-        if (left instanceof FunctionResult || right instanceof FunctionResult)
-        	return null;
-        decodeResults(left, right, fieldName, value);
-        //We need to check to see if we are in a NOT context. If so,
-        //then we need to reverse the negation.
-        boolean negated = false;
-        if (null != data && data instanceof EvaluationContext) {
-        	EvaluationContext ctx = (EvaluationContext) data;
-        	if (ctx.inNotContext)
-        		negated = !negated;
-        }
-        QueryTerm term = new QueryTerm(negated, JexlOperatorConstants.getOperator(node.getClass()), value.getObject());
-        this.currentNode.getTerms().put(fieldName.toString(), term);
-		return null;
-	}
-
-	public Object visit(ASTNENode node, Object data) {
-		StringBuilder fieldName = new StringBuilder();
-		ObjectHolder value = new ObjectHolder();
-		//Process both sides of this node.
-        Object left = node.jjtGetChild(0).jjtAccept(this, data);
-        Object right = node.jjtGetChild(1).jjtAccept(this, data);
-        //Ignore functions in the query
-        if (left instanceof FunctionResult || right instanceof FunctionResult)
-        	return null;
-        decodeResults(left, right, fieldName, value);
-        //We need to check to see if we are in a NOT context. If so,
-        //then we need to reverse the negation.
-        boolean negated = true;
-        if (null != data && data instanceof EvaluationContext) {
-        	EvaluationContext ctx = (EvaluationContext) data;
-        	if (ctx.inNotContext)
-        		negated = !negated;
-        }
-        QueryTerm term = new QueryTerm(negated, JexlOperatorConstants.getOperator(node.getClass()), value.getObject());
-        this.currentNode.getTerms().put(fieldName.toString(), term);
-		return null;
-	}
-
-	public Object visit(ASTLTNode node, Object data) {
-		StringBuilder fieldName = new StringBuilder();
-		ObjectHolder value = new ObjectHolder();
-		//Process both sides of this node.
-        Object left = node.jjtGetChild(0).jjtAccept(this, data);
-        Object right = node.jjtGetChild(1).jjtAccept(this, data);
-        //Ignore functions in the query
-        if (left instanceof FunctionResult || right instanceof FunctionResult)
-        	return null;
-        decodeResults(left, right, fieldName, value);
-        //We need to check to see if we are in a NOT context. If so,
-        //then we need to reverse the negation.
-        boolean negated = false;
-        if (null != data && data instanceof EvaluationContext) {
-        	EvaluationContext ctx = (EvaluationContext) data;
-        	if (ctx.inNotContext)
-        		negated = !negated;
-        }
-        QueryTerm term = new QueryTerm(negated, JexlOperatorConstants.getOperator(node.getClass()), value.getObject());
-        this.currentNode.getTerms().put(fieldName.toString(), term);
-		return null;
-	}
-
-	public Object visit(ASTGTNode node, Object data) {
-		StringBuilder fieldName = new StringBuilder();
-		ObjectHolder value = new ObjectHolder();
-		//Process both sides of this node.
-        Object left = node.jjtGetChild(0).jjtAccept(this, data);
-        Object right = node.jjtGetChild(1).jjtAccept(this, data);
-        //Ignore functions in the query
-        if (left instanceof FunctionResult || right instanceof FunctionResult)
-        	return null;
-        decodeResults(left, right, fieldName, value);
-        //We need to check to see if we are in a NOT context. If so,
-        //then we need to reverse the negation.
-        boolean negated = false;
-        if (null != data && data instanceof EvaluationContext) {
-        	EvaluationContext ctx = (EvaluationContext) data;
-        	if (ctx.inNotContext)
-        		negated = !negated;
-        }
-        QueryTerm term = new QueryTerm(negated, JexlOperatorConstants.getOperator(node.getClass()), value.getObject());
-        this.currentNode.getTerms().put(fieldName.toString(), term);
-		return null;
-	}
-
-	public Object visit(ASTLENode node, Object data) {
-		StringBuilder fieldName = new StringBuilder();
-		ObjectHolder value = new ObjectHolder();
-		//Process both sides of this node.
-        Object left = node.jjtGetChild(0).jjtAccept(this, data);
-        Object right = node.jjtGetChild(1).jjtAccept(this, data);
-        //Ignore functions in the query
-        if (left instanceof FunctionResult || right instanceof FunctionResult)
-        	return null;
-        decodeResults(left, right, fieldName, value);
-        //We need to check to see if we are in a NOT context. If so,
-        //then we need to reverse the negation.
-        boolean negated = false;
-        if (null != data && data instanceof EvaluationContext) {
-        	EvaluationContext ctx = (EvaluationContext) data;
-        	if (ctx.inNotContext)
-        		negated = !negated;
-        }
-        QueryTerm term = new QueryTerm(negated, JexlOperatorConstants.getOperator(node.getClass()), value.getObject());
-        this.currentNode.getTerms().put(fieldName.toString(), term);
-		return null;
-	}
-
-	public Object visit(ASTGENode node, Object data) {
-		StringBuilder fieldName = new StringBuilder();
-		ObjectHolder value = new ObjectHolder();
-		//Process both sides of this node.
-        Object left = node.jjtGetChild(0).jjtAccept(this, data);
-        Object right = node.jjtGetChild(1).jjtAccept(this, data);
-        //Ignore functions in the query
-        if (left instanceof FunctionResult || right instanceof FunctionResult)
-        	return null;
-        decodeResults(left, right, fieldName, value);
-        //We need to check to see if we are in a NOT context. If so,
-        //then we need to reverse the negation.
-        boolean negated = false;
-        if (null != data && data instanceof EvaluationContext) {
-        	EvaluationContext ctx = (EvaluationContext) data;
-        	if (ctx.inNotContext)
-        		negated = !negated;
-        }
-        QueryTerm term = new QueryTerm(negated, JexlOperatorConstants.getOperator(node.getClass()), value.getObject());
-        this.currentNode.getTerms().put(fieldName.toString(), term);
-		return null;
-	}
-
-	public Object visit(ASTERNode node, Object data) {
-		StringBuilder fieldName = new StringBuilder();
-		ObjectHolder value = new ObjectHolder();
-		//Process both sides of this node.
-        Object left = node.jjtGetChild(0).jjtAccept(this, data);
-        Object right = node.jjtGetChild(1).jjtAccept(this, data);
-        //Ignore functions in the query
-        if (left instanceof FunctionResult || right instanceof FunctionResult)
-        	return null;
-        decodeResults(left, right, fieldName, value);
-        //We need to check to see if we are in a NOT context. If so,
-        //then we need to reverse the negation.
-        boolean negated = false;
-        if (null != data && data instanceof EvaluationContext) {
-        	EvaluationContext ctx = (EvaluationContext) data;
-        	if (ctx.inNotContext)
-        		negated = !negated;
-        }
-        QueryTerm term = new QueryTerm(negated, JexlOperatorConstants.getOperator(node.getClass()), value.getObject());
-        this.currentNode.getTerms().put(fieldName.toString(), term);
-		return null;
-	}
-
-	public Object visit(ASTNRNode node, Object data) {
-		StringBuilder fieldName = new StringBuilder();
-		ObjectHolder value = new ObjectHolder();
-		//Process both sides of this node.
-        Object left = node.jjtGetChild(0).jjtAccept(this, data);
-        Object right = node.jjtGetChild(1).jjtAccept(this, data);
-        //Ignore functions in the query
-        if (left instanceof FunctionResult || right instanceof FunctionResult)
-        	return null;
-        decodeResults(left, right, fieldName, value);
-        //We need to check to see if we are in a NOT context. If so,
-        //then we need to reverse the negation.
-        boolean negated = true;
-        if (null != data && data instanceof EvaluationContext) {
-        	EvaluationContext ctx = (EvaluationContext) data;
-        	if (ctx.inNotContext)
-        		negated = !negated;
-        }
-        QueryTerm term = new QueryTerm(negated, "!~", value.getObject());
-        this.currentNode.getTerms().put(fieldName.toString(), term);
-		return null;
-	}
-
-	public Object visit(ASTAdditiveNode node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTAdditiveOperator node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTMulNode node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTDivNode node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTModNode node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTUnaryMinusNode node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTBitwiseComplNode node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTNotNode node, Object data) {
-		boolean previouslyInNotContext = false;
-		EvaluationContext ctx = null;
-		if (null != data && data instanceof EvaluationContext) {
-			ctx = (EvaluationContext) data;
-			previouslyInNotContext = ctx.inNotContext;
-		} else {
-			ctx = new EvaluationContext();
-		}
-		ctx.inNotContext = true;
-		//Create a new node in the tree to represent the NOT
-		//Create a new And node under the current node.
-		TreeNode notNode = new TreeNode();
-		notNode.setType(ASTNotNode.class);
-		notNode.setParent(this.currentNode);
-		this.currentNode.getChildren().add(notNode);
-                this.currentNode = notNode;
-		//Process both sides of this node.
-        node.jjtGetChild(0).jjtAccept(this, ctx);
-        //reset the state
-        if (null != data && !previouslyInNotContext)
-        	ctx.inNotContext = false;
-		return null;
-	}
-
-	public Object visit(ASTIdentifier node, Object data) {
-		return new TermResult(node.image);
-	}
-
-	public Object visit(ASTNullLiteral node, Object data) {
-		return new LiteralResult(node.image);
-	}
-
-	public Object visit(ASTTrueNode node, Object data) {
-		return new LiteralResult(node.image);
-	}
-
-	public Object visit(ASTFalseNode node, Object data) {
-		return new LiteralResult(node.image);
-	}
-
-	public Object visit(ASTIntegerLiteral node, Object data) {
-		return new LiteralResult(node.image);
-	}
-
-	public Object visit(ASTFloatLiteral node, Object data) {
-		return new LiteralResult(node.image);
-	}
-
-	public Object visit(ASTStringLiteral node, Object data) {
-		return new LiteralResult("'"+node.image+"'");
-	}
-
-	public Object visit(ASTArrayLiteral node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTMapLiteral node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTMapEntry node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTEmptyFunction node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTSizeFunction node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTFunctionNode node, Object data) {
-        // objectNode 0 is the prefix
-        // objectNode 1 is the identifier , the others are parameters.
-        // process the remaining arguments 
-		FunctionResult fr = new FunctionResult();
-        int argc = node.jjtGetNumChildren() - 2;
-        for (int i = 0; i < argc; i++) {
-    		//Process both sides of this node.
-            Object result = node.jjtGetChild(i + 2).jjtAccept(this, data);
-            if (result instanceof TermResult) {
-            	TermResult tr = (TermResult) result;
-            	fr.getTerms().add(tr);
-            }
-        }
-        return fr;        	
-	}
-
-	public Object visit(ASTMethodNode node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTSizeMethod node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTConstructorNode node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTArrayAccess node, Object data) {
-		return null;
-	}
-
-	public Object visit(ASTReference node, Object data) {
-        return node.jjtGetChild(0).jjtAccept(this, data);
-	}
-
-	private void decodeResults(Object left, Object right, StringBuilder fieldName, ObjectHolder holder) {
-		if (left instanceof TermResult) {
-			TermResult tr = (TermResult) left;
-			fieldName.append((String) tr.value);
-			//Then the right has to be the value
-			if (right instanceof LiteralResult) {
-				holder.setObject(((LiteralResult) right).value);
-			} else {
-				throw new IllegalArgumentException("Object mismatch");
-			}
-		} else if (right instanceof TermResult) {
-			TermResult tr = (TermResult) right;
-			fieldName.append((String) tr.value);
-			if (left instanceof LiteralResult) {
-				holder.setObject(((LiteralResult) left).value);
-			} else {
-				throw new IllegalArgumentException("Object mismatch");
-			}
-			
-		} else {
-			throw new IllegalArgumentException("No Term specified in query");
-		}
-	}
+  
+  class RootNode extends JexlNode {
+    
+    public RootNode(int id) {
+      super(id);
+    }
+    
+    public RootNode(Parser p, int id) {
+      super(p, id);
+    }
+    
+  }
+  
+  private TreeNode rootNode = null;
+  private TreeNode currentNode = null;
+  private boolean currentlyInCheckChildren = false;
+  
+  public TreeBuilder(String query) throws ParseException {
+    Parser p = new Parser(new StringReader(";"));
+    ASTJexlScript script = p.parse(new StringReader(query), null);
+    // Check to see if the child node is an AND or OR. If not, then
+    // there must be just a single value in the query expression
+    rootNode = new TreeNode();
+    rootNode.setType(RootNode.class);
+    currentNode = rootNode;
+    EvaluationContext ctx = new EvaluationContext();
+    script.childrenAccept(this, ctx);
+  }
+  
+  public TreeBuilder(ASTJexlScript script) {
+    // Check to see if the child node is an AND or OR. If not, then
+    // there must be just a single value in the query expression
+    rootNode = new TreeNode();
+    rootNode.setType(RootNode.class);
+    currentNode = rootNode;
+    EvaluationContext ctx = new EvaluationContext();
+    script.childrenAccept(this, ctx);
+  }
+  
+  public TreeNode getRootNode() {
+    return this.rootNode;
+  }
+  
+  public Object visit(SimpleNode node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTJexlScript node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTBlock node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTAmbiguous node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTIfStatement node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTWhileStatement node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTForeachStatement node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTAssignment node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTTernaryNode node, Object data) {
+    return null;
+  }
+  
+  /**
+   * @param node
+   * @param failClass
+   * @return false if any of the nodes equals the fail class or contain a NOT in the subtree
+   */
+  private boolean nodeCheck(JexlNode node, Class<?> failClass) {
+    if (node.getClass().equals(failClass) || node.getClass().equals(ASTNotNode.class))
+      return false;
+    else {
+      for (int i = 0; i < node.jjtGetNumChildren(); i++) {
+        if (!nodeCheck(node.jjtGetChild(i), failClass))
+          return false;
+      }
+    }
+    return true;
+  }
+  
+  /**
+   * Checks to see if all of the child nodes are of the same type (AND/OR) and if so then aggregates all of the child terms. If not returns null.
+   * 
+   * @param parent
+   * @param parentNode
+   * @return Map of field names to query terms or null
+   */
+  private Multimap<String,QueryTerm> checkChildren(JexlNode parent, EvaluationContext ctx) {
+    // If the current node is an AND, then make sure that there is no
+    // OR descendant node, and vice versa. If this is true, then we call
+    // roll up all of the descendent values.
+    this.currentlyInCheckChildren = true;
+    Multimap<String,QueryTerm> rolledUpTerms = null;
+    boolean result = false;
+    if (parent.getClass().equals(ASTOrNode.class)) {
+      for (int i = 0; i < parent.jjtGetNumChildren(); i++) {
+        result = nodeCheck(parent.jjtGetChild(i), ASTAndNode.class);
+        if (!result)
+          break;
+      }
+    } else {
+      for (int i = 0; i < parent.jjtGetNumChildren(); i++) {
+        result = nodeCheck(parent.jjtGetChild(i), ASTOrNode.class);
+        if (!result)
+          break;
+      }
+    }
+    if (result) {
+      // Set current node to a fake node and
+      // roll up the children from this node using the visitor pattern.
+      TreeNode rollupFakeNode = new TreeNode();
+      TreeNode previous = this.currentNode;
+      this.currentNode = rollupFakeNode;
+      // Run the visitor with the fake node.
+      parent.childrenAccept(this, ctx);
+      // Get the terms from the fake node
+      rolledUpTerms = this.currentNode.getTerms();
+      // Reset the current node pointer
+      this.currentNode = previous;
+    }
+    this.currentlyInCheckChildren = false;
+    return rolledUpTerms;
+  }
+  
+  public Object visit(ASTOrNode node, Object data) {
+    boolean previouslyInOrContext = false;
+    EvaluationContext ctx = null;
+    if (null != data && data instanceof EvaluationContext) {
+      ctx = (EvaluationContext) data;
+      previouslyInOrContext = ctx.inOrContext;
+    } else {
+      ctx = new EvaluationContext();
+    }
+    ctx.inOrContext = true;
+    // Are we being called from the checkChildren method? If so, then we
+    // are rolling up terms. If not, then we need to call check children.
+    if (currentlyInCheckChildren) {
+      // Process both sides of this node.
+      node.jjtGetChild(0).jjtAccept(this, data);
+      node.jjtGetChild(1).jjtAccept(this, data);
+    } else {
+      // Create a new OR node under the current node.
+      TreeNode orNode = new TreeNode();
+      orNode.setType(ASTOrNode.class);
+      orNode.setParent(this.currentNode);
+      this.currentNode.getChildren().add(orNode);
+      Multimap<String,QueryTerm> terms = checkChildren(node, ctx);
+      if (terms == null) {
+        // Then there was no rollup, set the current node to the orNode
+        // and process the children. Be sure to set the current Node to
+        // the or node in between calls because we could be processing
+        // an AND node below and the current node will have been switched.
+        // Process both sides of this node.
+        currentNode = orNode;
+        node.jjtGetChild(0).jjtAccept(this, data);
+        currentNode = orNode;
+        node.jjtGetChild(1).jjtAccept(this, data);
+      } else {
+        // There was a rollup, don't process the children and set the terms
+        // on the or node.
+        orNode.setTerms(terms);
+      }
+    }
+    // reset the state
+    if (null != data && !previouslyInOrContext)
+      ctx.inOrContext = false;
+    return null;
+  }
+  
+  public Object visit(ASTAndNode node, Object data) {
+    boolean previouslyInAndContext = false;
+    EvaluationContext ctx = null;
+    if (null != data && data instanceof EvaluationContext) {
+      ctx = (EvaluationContext) data;
+      previouslyInAndContext = ctx.inAndContext;
+    } else {
+      ctx = new EvaluationContext();
+    }
+    ctx.inAndContext = true;
+    // Are we being called from the checkChildren method? If so, then we
+    // are rolling up terms. If not, then we need to call check children.
+    if (currentlyInCheckChildren) {
+      // Process both sides of this node.
+      node.jjtGetChild(0).jjtAccept(this, data);
+      node.jjtGetChild(1).jjtAccept(this, data);
+    } else {
+      // Create a new And node under the current node.
+      TreeNode andNode = new TreeNode();
+      andNode.setType(ASTAndNode.class);
+      andNode.setParent(this.currentNode);
+      this.currentNode.getChildren().add(andNode);
+      Multimap<String,QueryTerm> terms = checkChildren(node, ctx);
+      if (terms == null) {
+        // Then there was no rollup, set the current node to the orNode
+        // and process the children. Be sure to set the current Node to
+        // the and node in between calls because we could be processing
+        // an OR node below and the current node will have been switched.
+        // Process both sides of this node.
+        currentNode = andNode;
+        node.jjtGetChild(0).jjtAccept(this, data);
+        currentNode = andNode;
+        node.jjtGetChild(1).jjtAccept(this, data);
+      } else {
+        // There was a rollup, don't process the children and set the terms
+        // on the or node.
+        andNode.setTerms(terms);
+      }
+    }
+    if (null != data && !previouslyInAndContext)
+      ctx.inAndContext = false;
+    return null;
+  }
+  
+  public Object visit(ASTBitwiseOrNode node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTBitwiseXorNode node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTBitwiseAndNode node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTEQNode node, Object data) {
+    StringBuilder fieldName = new StringBuilder();
+    ObjectHolder value = new ObjectHolder();
+    // Process both sides of this node.
+    Object left = node.jjtGetChild(0).jjtAccept(this, data);
+    Object right = node.jjtGetChild(1).jjtAccept(this, data);
+    // Ignore functions in the query
+    if (left instanceof FunctionResult || right instanceof FunctionResult)
+      return null;
+    decodeResults(left, right, fieldName, value);
+    // We need to check to see if we are in a NOT context. If so,
+    // then we need to reverse the negation.
+    boolean negated = false;
+    if (null != data && data instanceof EvaluationContext) {
+      EvaluationContext ctx = (EvaluationContext) data;
+      if (ctx.inNotContext)
+        negated = !negated;
+    }
+    QueryTerm term = new QueryTerm(negated, JexlOperatorConstants.getOperator(node.getClass()), value.getObject());
+    this.currentNode.getTerms().put(fieldName.toString(), term);
+    return null;
+  }
+  
+  public Object visit(ASTNENode node, Object data) {
+    StringBuilder fieldName = new StringBuilder();
+    ObjectHolder value = new ObjectHolder();
+    // Process both sides of this node.
+    Object left = node.jjtGetChild(0).jjtAccept(this, data);
+    Object right = node.jjtGetChild(1).jjtAccept(this, data);
+    // Ignore functions in the query
+    if (left instanceof FunctionResult || right instanceof FunctionResult)
+      return null;
+    decodeResults(left, right, fieldName, value);
+    // We need to check to see if we are in a NOT context. If so,
+    // then we need to reverse the negation.
+    boolean negated = true;
+    if (null != data && data instanceof EvaluationContext) {
+      EvaluationContext ctx = (EvaluationContext) data;
+      if (ctx.inNotContext)
+        negated = !negated;
+    }
+    QueryTerm term = new QueryTerm(negated, JexlOperatorConstants.getOperator(node.getClass()), value.getObject());
+    this.currentNode.getTerms().put(fieldName.toString(), term);
+    return null;
+  }
+  
+  public Object visit(ASTLTNode node, Object data) {
+    StringBuilder fieldName = new StringBuilder();
+    ObjectHolder value = new ObjectHolder();
+    // Process both sides of this node.
+    Object left = node.jjtGetChild(0).jjtAccept(this, data);
+    Object right = node.jjtGetChild(1).jjtAccept(this, data);
+    // Ignore functions in the query
+    if (left instanceof FunctionResult || right instanceof FunctionResult)
+      return null;
+    decodeResults(left, right, fieldName, value);
+    // We need to check to see if we are in a NOT context. If so,
+    // then we need to reverse the negation.
+    boolean negated = false;
+    if (null != data && data instanceof EvaluationContext) {
+      EvaluationContext ctx = (EvaluationContext) data;
+      if (ctx.inNotContext)
+        negated = !negated;
+    }
+    QueryTerm term = new QueryTerm(negated, JexlOperatorConstants.getOperator(node.getClass()), value.getObject());
+    this.currentNode.getTerms().put(fieldName.toString(), term);
+    return null;
+  }
+  
+  public Object visit(ASTGTNode node, Object data) {
+    StringBuilder fieldName = new StringBuilder();
+    ObjectHolder value = new ObjectHolder();
+    // Process both sides of this node.
+    Object left = node.jjtGetChild(0).jjtAccept(this, data);
+    Object right = node.jjtGetChild(1).jjtAccept(this, data);
+    // Ignore functions in the query
+    if (left instanceof FunctionResult || right instanceof FunctionResult)
+      return null;
+    decodeResults(left, right, fieldName, value);
+    // We need to check to see if we are in a NOT context. If so,
+    // then we need to reverse the negation.
+    boolean negated = false;
+    if (null != data && data instanceof EvaluationContext) {
+      EvaluationContext ctx = (EvaluationContext) data;
+      if (ctx.inNotContext)
+        negated = !negated;
+    }
+    QueryTerm term = new QueryTerm(negated, JexlOperatorConstants.getOperator(node.getClass()), value.getObject());
+    this.currentNode.getTerms().put(fieldName.toString(), term);
+    return null;
+  }
+  
+  public Object visit(ASTLENode node, Object data) {
+    StringBuilder fieldName = new StringBuilder();
+    ObjectHolder value = new ObjectHolder();
+    // Process both sides of this node.
+    Object left = node.jjtGetChild(0).jjtAccept(this, data);
+    Object right = node.jjtGetChild(1).jjtAccept(this, data);
+    // Ignore functions in the query
+    if (left instanceof FunctionResult || right instanceof FunctionResult)
+      return null;
+    decodeResults(left, right, fieldName, value);
+    // We need to check to see if we are in a NOT context. If so,
+    // then we need to reverse the negation.
+    boolean negated = false;
+    if (null != data && data instanceof EvaluationContext) {
+      EvaluationContext ctx = (EvaluationContext) data;
+      if (ctx.inNotContext)
+        negated = !negated;
+    }
+    QueryTerm term = new QueryTerm(negated, JexlOperatorConstants.getOperator(node.getClass()), value.getObject());
+    this.currentNode.getTerms().put(fieldName.toString(), term);
+    return null;
+  }
+  
+  public Object visit(ASTGENode node, Object data) {
+    StringBuilder fieldName = new StringBuilder();
+    ObjectHolder value = new ObjectHolder();
+    // Process both sides of this node.
+    Object left = node.jjtGetChild(0).jjtAccept(this, data);
+    Object right = node.jjtGetChild(1).jjtAccept(this, data);
+    // Ignore functions in the query
+    if (left instanceof FunctionResult || right instanceof FunctionResult)
+      return null;
+    decodeResults(left, right, fieldName, value);
+    // We need to check to see if we are in a NOT context. If so,
+    // then we need to reverse the negation.
+    boolean negated = false;
+    if (null != data && data instanceof EvaluationContext) {
+      EvaluationContext ctx = (EvaluationContext) data;
+      if (ctx.inNotContext)
+        negated = !negated;
+    }
+    QueryTerm term = new QueryTerm(negated, JexlOperatorConstants.getOperator(node.getClass()), value.getObject());
+    this.currentNode.getTerms().put(fieldName.toString(), term);
+    return null;
+  }
+  
+  public Object visit(ASTERNode node, Object data) {
+    StringBuilder fieldName = new StringBuilder();
+    ObjectHolder value = new ObjectHolder();
+    // Process both sides of this node.
+    Object left = node.jjtGetChild(0).jjtAccept(this, data);
+    Object right = node.jjtGetChild(1).jjtAccept(this, data);
+    // Ignore functions in the query
+    if (left instanceof FunctionResult || right instanceof FunctionResult)
+      return null;
+    decodeResults(left, right, fieldName, value);
+    // We need to check to see if we are in a NOT context. If so,
+    // then we need to reverse the negation.
+    boolean negated = false;
+    if (null != data && data instanceof EvaluationContext) {
+      EvaluationContext ctx = (EvaluationContext) data;
+      if (ctx.inNotContext)
+        negated = !negated;
+    }
+    QueryTerm term = new QueryTerm(negated, JexlOperatorConstants.getOperator(node.getClass()), value.getObject());
+    this.currentNode.getTerms().put(fieldName.toString(), term);
+    return null;
+  }
+  
+  public Object visit(ASTNRNode node, Object data) {
+    StringBuilder fieldName = new StringBuilder();
+    ObjectHolder value = new ObjectHolder();
+    // Process both sides of this node.
+    Object left = node.jjtGetChild(0).jjtAccept(this, data);
+    Object right = node.jjtGetChild(1).jjtAccept(this, data);
+    // Ignore functions in the query
+    if (left instanceof FunctionResult || right instanceof FunctionResult)
+      return null;
+    decodeResults(left, right, fieldName, value);
+    // We need to check to see if we are in a NOT context. If so,
+    // then we need to reverse the negation.
+    boolean negated = true;
+    if (null != data && data instanceof EvaluationContext) {
+      EvaluationContext ctx = (EvaluationContext) data;
+      if (ctx.inNotContext)
+        negated = !negated;
+    }
+    QueryTerm term = new QueryTerm(negated, "!~", value.getObject());
+    this.currentNode.getTerms().put(fieldName.toString(), term);
+    return null;
+  }
+  
+  public Object visit(ASTAdditiveNode node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTAdditiveOperator node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTMulNode node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTDivNode node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTModNode node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTUnaryMinusNode node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTBitwiseComplNode node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTNotNode node, Object data) {
+    boolean previouslyInNotContext = false;
+    EvaluationContext ctx = null;
+    if (null != data && data instanceof EvaluationContext) {
+      ctx = (EvaluationContext) data;
+      previouslyInNotContext = ctx.inNotContext;
+    } else {
+      ctx = new EvaluationContext();
+    }
+    ctx.inNotContext = true;
+    // Create a new node in the tree to represent the NOT
+    // Create a new And node under the current node.
+    TreeNode notNode = new TreeNode();
+    notNode.setType(ASTNotNode.class);
+    notNode.setParent(this.currentNode);
+    this.currentNode.getChildren().add(notNode);
+    this.currentNode = notNode;
+    // Process both sides of this node.
+    node.jjtGetChild(0).jjtAccept(this, ctx);
+    // reset the state
+    if (null != data && !previouslyInNotContext)
+      ctx.inNotContext = false;
+    return null;
+  }
+  
+  public Object visit(ASTIdentifier node, Object data) {
+    return new TermResult(node.image);
+  }
+  
+  public Object visit(ASTNullLiteral node, Object data) {
+    return new LiteralResult(node.image);
+  }
+  
+  public Object visit(ASTTrueNode node, Object data) {
+    return new LiteralResult(node.image);
+  }
+  
+  public Object visit(ASTFalseNode node, Object data) {
+    return new LiteralResult(node.image);
+  }
+  
+  public Object visit(ASTIntegerLiteral node, Object data) {
+    return new LiteralResult(node.image);
+  }
+  
+  public Object visit(ASTFloatLiteral node, Object data) {
+    return new LiteralResult(node.image);
+  }
+  
+  public Object visit(ASTStringLiteral node, Object data) {
+    return new LiteralResult("'" + node.image + "'");
+  }
+  
+  public Object visit(ASTArrayLiteral node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTMapLiteral node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTMapEntry node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTEmptyFunction node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTSizeFunction node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTFunctionNode node, Object data) {
+    // objectNode 0 is the prefix
+    // objectNode 1 is the identifier , the others are parameters.
+    // process the remaining arguments
+    FunctionResult fr = new FunctionResult();
+    int argc = node.jjtGetNumChildren() - 2;
+    for (int i = 0; i < argc; i++) {
+      // Process both sides of this node.
+      Object result = node.jjtGetChild(i + 2).jjtAccept(this, data);
+      if (result instanceof TermResult) {
+        TermResult tr = (TermResult) result;
+        fr.getTerms().add(tr);
+      }
+    }
+    return fr;
+  }
+  
+  public Object visit(ASTMethodNode node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTSizeMethod node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTConstructorNode node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTArrayAccess node, Object data) {
+    return null;
+  }
+  
+  public Object visit(ASTReference node, Object data) {
+    return node.jjtGetChild(0).jjtAccept(this, data);
+  }
+  
+  private void decodeResults(Object left, Object right, StringBuilder fieldName, ObjectHolder holder) {
+    if (left instanceof TermResult) {
+      TermResult tr = (TermResult) left;
+      fieldName.append((String) tr.value);
+      // Then the right has to be the value
+      if (right instanceof LiteralResult) {
+        holder.setObject(((LiteralResult) right).value);
+      } else {
+        throw new IllegalArgumentException("Object mismatch");
+      }
+    } else if (right instanceof TermResult) {
+      TermResult tr = (TermResult) right;
+      fieldName.append((String) tr.value);
+      if (left instanceof LiteralResult) {
+        holder.setObject(((LiteralResult) left).value);
+      } else {
+        throw new IllegalArgumentException("Object mismatch");
+      }
+      
+    } else {
+      throw new IllegalArgumentException("No Term specified in query");
+    }
+  }
 }

Modified: incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/parser/TreeNode.java
URL: http://svn.apache.org/viewvc/incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/parser/TreeNode.java?rev=1210600&r1=1210599&r2=1210600&view=diff
==============================================================================
--- incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/parser/TreeNode.java (original)
+++ incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/parser/TreeNode.java Mon Dec  5 20:05:49 2011
@@ -1,19 +1,19 @@
 /*
-* 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.
-*/
+ * 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 parser;
 
 import java.util.ArrayList;
@@ -31,206 +31,205 @@ import com.google.common.collect.HashMul
 import com.google.common.collect.Multimap;
 
 public class TreeNode {
-
-    private Class<? extends JexlNode> type = null;
-    /* navigation elements */
-    private TreeNode parent = null;
-    private List<TreeNode> children = new ArrayList<TreeNode>();
-    private Multimap<String, QueryTerm> terms = HashMultimap.create();
-
-    public TreeNode() {
-        super();
-    }
-
-    public Class<? extends JexlNode> getType() {
-        return type;
-    }
-
-    public TreeNode getParent() {
-        return parent;
-    }
-
-    public List<TreeNode> getChildren() {
-        return children;
-    }
-
-    public Enumeration<TreeNode> getChildrenAsEnumeration() {
-        return Collections.enumeration(children);
-    }
-
-    public Multimap<String, QueryTerm> getTerms() {
-        return terms;
-    }
-
-    public void setType(Class<? extends JexlNode> type) {
-        this.type = type;
-    }
-
-    public void setParent(TreeNode parent) {
-        this.parent = parent;
-    }
-
-    public void setChildren(List<TreeNode> children) {
-        this.children = children;
-    }
-
-    public void setTerms(Multimap<String, QueryTerm> terms) {
-        this.terms = terms;
-    }
-
-    public boolean isLeaf(){
-        return children.isEmpty();
-    }
-
-    @Override
-    public String toString() {
-        StringBuilder buf = new StringBuilder();
-        buf.append("Type: ").append(type.getSimpleName());
-        buf.append(" Terms: ");
-        if (null == terms) {
-            buf.append("null");
+  
+  private Class<? extends JexlNode> type = null;
+  /* navigation elements */
+  private TreeNode parent = null;
+  private List<TreeNode> children = new ArrayList<TreeNode>();
+  private Multimap<String,QueryTerm> terms = HashMultimap.create();
+  
+  public TreeNode() {
+    super();
+  }
+  
+  public Class<? extends JexlNode> getType() {
+    return type;
+  }
+  
+  public TreeNode getParent() {
+    return parent;
+  }
+  
+  public List<TreeNode> getChildren() {
+    return children;
+  }
+  
+  public Enumeration<TreeNode> getChildrenAsEnumeration() {
+    return Collections.enumeration(children);
+  }
+  
+  public Multimap<String,QueryTerm> getTerms() {
+    return terms;
+  }
+  
+  public void setType(Class<? extends JexlNode> type) {
+    this.type = type;
+  }
+  
+  public void setParent(TreeNode parent) {
+    this.parent = parent;
+  }
+  
+  public void setChildren(List<TreeNode> children) {
+    this.children = children;
+  }
+  
+  public void setTerms(Multimap<String,QueryTerm> terms) {
+    this.terms = terms;
+  }
+  
+  public boolean isLeaf() {
+    return children.isEmpty();
+  }
+  
+  @Override
+  public String toString() {
+    StringBuilder buf = new StringBuilder();
+    buf.append("Type: ").append(type.getSimpleName());
+    buf.append(" Terms: ");
+    if (null == terms) {
+      buf.append("null");
+    } else {
+      buf.append(terms.toString());
+    }
+    return buf.toString();
+  }
+  
+  public final Enumeration<?> depthFirstEnumeration() {
+    return new PostorderEnumeration(this);
+  }
+  
+  public Enumeration<?> breadthFirstEnumeration() {
+    return new BreadthFirstEnumeration(this);
+  }
+  
+  public final class PostorderEnumeration implements Enumeration<TreeNode> {
+    
+    protected TreeNode root;
+    protected Enumeration<TreeNode> children;
+    protected Enumeration<TreeNode> subtree;
+    
+    public PostorderEnumeration(TreeNode rootNode) {
+      super();
+      root = rootNode;
+      children = root.getChildrenAsEnumeration();
+      subtree = EMPTY_ENUMERATION;
+    }
+    
+    public boolean hasMoreElements() {
+      return root != null;
+    }
+    
+    public TreeNode nextElement() {
+      TreeNode retval;
+      
+      if (subtree.hasMoreElements()) {
+        retval = subtree.nextElement();
+      } else if (children.hasMoreElements()) {
+        subtree = new PostorderEnumeration((TreeNode) children.nextElement());
+        retval = subtree.nextElement();
+      } else {
+        retval = root;
+        root = null;
+      }
+      
+      return retval;
+    }
+  } // End of class PostorderEnumeration
+  
+  static public final Enumeration<TreeNode> EMPTY_ENUMERATION = new Enumeration<TreeNode>() {
+    
+    public boolean hasMoreElements() {
+      return false;
+    }
+    
+    public TreeNode nextElement() {
+      throw new NoSuchElementException("No more elements");
+    }
+  };
+  
+  final class BreadthFirstEnumeration implements Enumeration<TreeNode> {
+    protected Queue queue;
+    
+    public BreadthFirstEnumeration(TreeNode rootNode) {
+      super();
+      Vector<TreeNode> v = new Vector<TreeNode>(1);
+      v.addElement(rootNode); // PENDING: don't really need a vector
+      queue = new Queue();
+      queue.enqueue(v.elements());
+    }
+    
+    public boolean hasMoreElements() {
+      return (!queue.isEmpty() && ((Enumeration<?>) queue.firstObject()).hasMoreElements());
+    }
+    
+    public TreeNode nextElement() {
+      Enumeration<?> enumer = (Enumeration<?>) queue.firstObject();
+      TreeNode node = (TreeNode) enumer.nextElement();
+      Enumeration<?> children = node.getChildrenAsEnumeration();
+      
+      if (!enumer.hasMoreElements()) {
+        queue.dequeue();
+      }
+      if (children.hasMoreElements()) {
+        queue.enqueue(children);
+      }
+      return node;
+    }
+    
+    // A simple queue with a linked list data structure.
+    final class Queue {
+      QNode head; // null if empty
+      QNode tail;
+      
+      final class QNode {
+        public Object object;
+        public QNode next; // null if end
+        
+        public QNode(Object object, QNode next) {
+          this.object = object;
+          this.next = next;
+        }
+      }
+      
+      public void enqueue(Object anObject) {
+        if (head == null) {
+          head = tail = new QNode(anObject, null);
         } else {
-            buf.append(terms.toString());
+          tail.next = new QNode(anObject, null);
+          tail = tail.next;
         }
-        return buf.toString();
-    }
-
-    public final Enumeration<?> depthFirstEnumeration() {
-        return new PostorderEnumeration(this);
-    }
-
-    public Enumeration<?> breadthFirstEnumeration() {
-	return new BreadthFirstEnumeration(this);
-    }
-
-    public final class PostorderEnumeration implements Enumeration<TreeNode> {
-
-        protected TreeNode root;
-        protected Enumeration<TreeNode> children;
-        protected Enumeration<TreeNode> subtree;
-
-        public PostorderEnumeration(TreeNode rootNode) {
-            super();
-            root = rootNode;
-            children = root.getChildrenAsEnumeration();
-            subtree = EMPTY_ENUMERATION;
-        }
-
-        public boolean hasMoreElements() {
-            return root != null;
-        }
-
-        public TreeNode nextElement() {
-            TreeNode retval;
-
-            if (subtree.hasMoreElements()) {
-                retval = subtree.nextElement();
-            } else if (children.hasMoreElements()) {
-                subtree = new PostorderEnumeration(
-                        (TreeNode) children.nextElement());
-                retval = subtree.nextElement();
-            } else {
-                retval = root;
-                root = null;
-            }
-
-            return retval;
-        }
-    }  // End of class PostorderEnumeration
-    static public final Enumeration<TreeNode> EMPTY_ENUMERATION = new Enumeration<TreeNode>() {
-
-        public boolean hasMoreElements() {
-            return false;
-        }
-
-        public TreeNode nextElement() {
-            throw new NoSuchElementException("No more elements");
+      }
+      
+      public Object dequeue() {
+        if (head == null) {
+          throw new NoSuchElementException("No more elements");
+        }
+        
+        Object retval = head.object;
+        QNode oldHead = head;
+        head = head.next;
+        if (head == null) {
+          tail = null;
+        } else {
+          oldHead.next = null;
         }
-    };
-
-    final class BreadthFirstEnumeration implements Enumeration<TreeNode> {
-	protected Queue	queue;
-
-	public BreadthFirstEnumeration(TreeNode rootNode) {
-	    super();
-	    Vector<TreeNode> v = new Vector<TreeNode>(1);
-	    v.addElement(rootNode);	// PENDING: don't really need a vector
-	    queue = new Queue();
-	    queue.enqueue(v.elements());
-	}
-
-	public boolean hasMoreElements() {
-	    return (!queue.isEmpty() &&
-		    ((Enumeration<?>)queue.firstObject()).hasMoreElements());
-	}
-
-	public TreeNode nextElement() {
-	    Enumeration<?>	enumer = (Enumeration<?>)queue.firstObject();
-	    TreeNode	node = (TreeNode)enumer.nextElement();
-	    Enumeration<?>	children = node.getChildrenAsEnumeration();
-
-	    if (!enumer.hasMoreElements()) {
-		queue.dequeue();
-	    }
-	    if (children.hasMoreElements()) {
-		queue.enqueue(children);
-	    }
-	    return node;
-	}
-
-
-	// A simple queue with a linked list data structure.
-	final class Queue {
-	    QNode head;	// null if empty
-	    QNode tail;
-
-	    final class QNode {
-		public Object	object;
-		public QNode	next;	// null if end
-		public QNode(Object object, QNode next) {
-		    this.object = object;
-		    this.next = next;
-		}
-	    }
-
-	    public void enqueue(Object anObject) {
-		if (head == null) {
-		    head = tail = new QNode(anObject, null);
-		} else {
-		    tail.next = new QNode(anObject, null);
-		    tail = tail.next;
-		}
-	    }
-
-	    public Object dequeue() {
-		if (head == null) {
-		    throw new NoSuchElementException("No more elements");
-		}
-
-		Object retval = head.object;
-		QNode oldHead = head;
-		head = head.next;
-		if (head == null) {
-		    tail = null;
-		} else {
-		    oldHead.next = null;
-		}
-		return retval;
-	    }
-
-	    public Object firstObject() {
-		if (head == null) {
-		    throw new NoSuchElementException("No more elements");
-		}
-
-		return head.object;
-	    }
-
-	    public boolean isEmpty() {
-		return head == null;
-	    }
-
-	} // End of class Queue
-
-    }  // End of class BreadthFirstEnumeration
+        return retval;
+      }
+      
+      public Object firstObject() {
+        if (head == null) {
+          throw new NoSuchElementException("No more elements");
+        }
+        
+        return head.object;
+      }
+      
+      public boolean isEmpty() {
+        return head == null;
+      }
+      
+    } // End of class Queue
+    
+  } // End of class BreadthFirstEnumeration
 }

Modified: incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/Document.java
URL: http://svn.apache.org/viewvc/incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/Document.java?rev=1210600&r1=1210599&r2=1210600&view=diff
==============================================================================
--- incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/Document.java (original)
+++ incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/Document.java Mon Dec  5 20:05:49 2011
@@ -1,19 +1,19 @@
 /*
-* 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.
-*/
+ * 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 sample;
 
 import java.util.ArrayList;
@@ -25,37 +25,37 @@ import javax.xml.bind.annotation.XmlElem
 
 @XmlAccessorType(XmlAccessType.FIELD)
 public class Document {
-	
-	@XmlElement
-	private String id = null;
-	
-	@XmlElement
-	private List<Field> field = new ArrayList<Field>();
-	
-	public Document() {
-		super();
-	}
-
-	public Document(String id, List<Field> fields) {
-		super();
-		this.id = id;
-		this.field = fields;
-	}
-
-	public String getId() {
-		return id;
-	}
-
-	public List<Field> getFields() {
-		return field;
-	}
-
-	public void setId(String id) {
-		this.id = id;
-	}
-
-	public void setFields(List<Field> fields) {
-		this.field = fields;
-	}
-	
+  
+  @XmlElement
+  private String id = null;
+  
+  @XmlElement
+  private List<Field> field = new ArrayList<Field>();
+  
+  public Document() {
+    super();
+  }
+  
+  public Document(String id, List<Field> fields) {
+    super();
+    this.id = id;
+    this.field = fields;
+  }
+  
+  public String getId() {
+    return id;
+  }
+  
+  public List<Field> getFields() {
+    return field;
+  }
+  
+  public void setId(String id) {
+    this.id = id;
+  }
+  
+  public void setFields(List<Field> fields) {
+    this.field = fields;
+  }
+  
 }

Modified: incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/Field.java
URL: http://svn.apache.org/viewvc/incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/Field.java?rev=1210600&r1=1210599&r2=1210600&view=diff
==============================================================================
--- incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/Field.java (original)
+++ incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/Field.java Mon Dec  5 20:05:49 2011
@@ -1,19 +1,19 @@
 /*
-* 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.
-*/
+ * 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 sample;
 
 import javax.xml.bind.annotation.XmlAccessType;
@@ -23,36 +23,36 @@ import javax.xml.bind.annotation.XmlValu
 
 @XmlAccessorType(XmlAccessType.FIELD)
 public class Field {
-	
-	@XmlAttribute
-	private String name = null;
-	@XmlValue
-	private String value = null;
-	
-	public Field() {
-		super();
-	}
-
-	public Field(String fieldName, String fieldValue) {
-		super();
-		this.name = fieldName;
-		this.value = fieldValue;
-	}
-
-	public String getFieldName() {
-		return name;
-	}
-
-	public String getFieldValue() {
-		return value;
-	}
-
-	public void setFieldName(String fieldName) {
-		this.name = fieldName;
-	}
-
-	public void setFieldValue(String fieldValue) {
-		this.value = fieldValue;
-	}
-	
+  
+  @XmlAttribute
+  private String name = null;
+  @XmlValue
+  private String value = null;
+  
+  public Field() {
+    super();
+  }
+  
+  public Field(String fieldName, String fieldValue) {
+    super();
+    this.name = fieldName;
+    this.value = fieldValue;
+  }
+  
+  public String getFieldName() {
+    return name;
+  }
+  
+  public String getFieldValue() {
+    return value;
+  }
+  
+  public void setFieldName(String fieldName) {
+    this.name = fieldName;
+  }
+  
+  public void setFieldValue(String fieldValue) {
+    this.value = fieldValue;
+  }
+  
 }

Modified: incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/Results.java
URL: http://svn.apache.org/viewvc/incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/Results.java?rev=1210600&r1=1210599&r2=1210600&view=diff
==============================================================================
--- incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/Results.java (original)
+++ incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/Results.java Mon Dec  5 20:05:49 2011
@@ -1,19 +1,19 @@
 /*
-* 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.
-*/
+ * 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 sample;
 
 import java.util.ArrayList;
@@ -27,28 +27,27 @@ import javax.xml.bind.annotation.XmlRoot
 @XmlRootElement
 @XmlAccessorType(XmlAccessType.FIELD)
 public class Results {
-	
-	@XmlElement
-	private List<Document> document = new ArrayList<Document>();
-
-	public Results() {
-		super();
-	}
-
-	public List<Document> getResults() {
-		return document;
-	}
-
-	public void setResults(List<Document> results) {
-		this.document = results;
-	}
-	
-	public int size() {
-		if (null == document)
-			return 0;
-		else
-			return document.size();
-	}
-	
-
+  
+  @XmlElement
+  private List<Document> document = new ArrayList<Document>();
+  
+  public Results() {
+    super();
+  }
+  
+  public List<Document> getResults() {
+    return document;
+  }
+  
+  public void setResults(List<Document> results) {
+    this.document = results;
+  }
+  
+  public int size() {
+    if (null == document)
+      return 0;
+    else
+      return document.size();
+  }
+  
 }

Modified: incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/query/IQuery.java
URL: http://svn.apache.org/viewvc/incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/query/IQuery.java?rev=1210600&r1=1210599&r2=1210600&view=diff
==============================================================================
--- incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/query/IQuery.java (original)
+++ incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/query/IQuery.java Mon Dec  5 20:05:49 2011
@@ -1,19 +1,19 @@
 /*
-* 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.
-*/
+ * 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 sample.query;
 
 import javax.ws.rs.Consumes;
@@ -29,44 +29,44 @@ import sample.Results;
 
 @Path("/Query")
 public interface IQuery {
-	
-	@GET
-	@POST
-	@Path("/html")
-	@Consumes("*/*")
-	@GZIP
-	public String html(@QueryParam("query") String query, @QueryParam("auths") String auths);
-
-	@GET
-	@POST
-	@Path("/xml")
-	@Consumes("*/*")
-	@Produces("application/xml")
-	@GZIP
-	public Results xml(@QueryParam("query") String query, @QueryParam("auths") String auths);
-
-	@GET
-	@POST
-	@Path("/json")
-	@Consumes("*/*")
-	@Produces("application/json")
-	@GZIP
-	public Results json(@QueryParam("query") String query, @QueryParam("auths")  String auths);
-
-	@GET
-	@POST
-	@Path("/yaml")
-	@Consumes("*/*")
-	@Produces("text/x-yaml")
-	@GZIP	
-	public Results yaml(@QueryParam("query") String query, @QueryParam("auths")  String auths);
-
-	@GET
-	@POST
-	@Path("/content")
-	@Consumes("*/*")
-	@Produces("application/xml")
-	@GZIP	
-	public Results content(@QueryParam("query") String query, @QueryParam("auths")  String auths);
-
+  
+  @GET
+  @POST
+  @Path("/html")
+  @Consumes("*/*")
+  @GZIP
+  public String html(@QueryParam("query") String query, @QueryParam("auths") String auths);
+  
+  @GET
+  @POST
+  @Path("/xml")
+  @Consumes("*/*")
+  @Produces("application/xml")
+  @GZIP
+  public Results xml(@QueryParam("query") String query, @QueryParam("auths") String auths);
+  
+  @GET
+  @POST
+  @Path("/json")
+  @Consumes("*/*")
+  @Produces("application/json")
+  @GZIP
+  public Results json(@QueryParam("query") String query, @QueryParam("auths") String auths);
+  
+  @GET
+  @POST
+  @Path("/yaml")
+  @Consumes("*/*")
+  @Produces("text/x-yaml")
+  @GZIP
+  public Results yaml(@QueryParam("query") String query, @QueryParam("auths") String auths);
+  
+  @GET
+  @POST
+  @Path("/content")
+  @Consumes("*/*")
+  @Produces("application/xml")
+  @GZIP
+  public Results content(@QueryParam("query") String query, @QueryParam("auths") String auths);
+  
 }

Modified: incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/query/Query.java
URL: http://svn.apache.org/viewvc/incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/query/Query.java?rev=1210600&r1=1210599&r2=1210600&view=diff
==============================================================================
--- incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/query/Query.java (original)
+++ incubator/accumulo/trunk/contrib/accumulo_sample/query/src/main/java/sample/query/Query.java Mon Dec  5 20:05:49 2011
@@ -1,19 +1,19 @@
 /*
-* 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.
-*/
+ * 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 sample.query;
 
 import java.io.IOException;
@@ -53,192 +53,192 @@ import org.apache.accumulo.core.client.Z
 @Stateless
 @Local(IQuery.class)
 public class Query implements IQuery {
-	
-	private static final Logger log = Logger.getLogger(Query.class);
-	
-	//Inject values from XML configuration file
-	@Resource(name="instanceName")
-	private String instanceName;
-	
-	@Resource(name="zooKeepers")
-	private String zooKeepers;
-	
-	@Resource(name="username")
-	private String username;
-	
-	@Resource(name="password")
-	private String password;
-	
-	@Resource(name="tableName")
-	private String tableName;
-	
-	@Resource(name="partitions")
-	private int partitions;
-	
-	@Resource(name="threads")
-	private int threads;
-	
-	private static final String XSL = "http://localhost:8080/accumulo-sample/style.xsl";
-			
-	@PostConstruct
-	public void init() {
-		log.info("Post Construct");
-	}
-	
-	@PreDestroy
-	public void close() {
-		log.info("Close called.");
-	}
-	
-	/*
-	 * (non-Javadoc)
-	 * @see sample.query.IQuery#html(java.lang.String, java.lang.String)
-	 */
-	public String html(String query, String auths) {
-		log.info("HTML query: " + query);
-		URL u;
-		try {
-			u = new URL(XSL);
-		} catch (MalformedURLException e1) {
-			throw new EJBException("Unable to load XSL stylesheet", e1);
-		}
-		InputStream xslContent;
-		try {
-			xslContent = u.openStream();
-		} catch (IOException e1) {
-			throw new EJBException("Unable to get xsl content", e1);
-		}
-
-		StringWriter xml = new StringWriter();
-		StringWriter html = new StringWriter();
-		
-		Results results = query(query, auths);
-		try {
-			//Marshall the query results object
-			JAXBContext ctx = JAXBContext.newInstance(Results.class);
-			Marshaller m = ctx.createMarshaller();
-			m.marshal(results, xml);
-			
-			//Perform XSL transform on the xml.
-			StringReader reader = new StringReader(xml.toString());
-			TransformerFactory tf = TransformerFactory.newInstance();
-			//Create the transformer from the xsl
-			Templates xsl = tf.newTemplates(new StreamSource(xslContent));
-			Transformer t = xsl.newTransformer();
-			t.transform(new StreamSource(reader), new StreamResult(html));
-			
-		} catch (Exception e) {
-			throw new EJBException("Error processing query results", e);
-		} finally {
-			try {
-				xslContent.close();
-			} catch (IOException e) {
-				throw new EJBException("Unable to close input stream", e);
-			}
-		}
-		return html.toString();
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * @see sample.query.IQuery#xml(java.lang.String, java.lang.String)
-	 */
-	public Results xml(String query, String auths) {
-		log.info("XML query: " + query);
-		return query(query, auths);
-	}
-	
-	/*
-	 * (non-Javadoc)
-	 * @see sample.query.IQuery#json(java.lang.String, java.lang.String)
-	 */
-	public Results json(String query, String auths) {
-		log.info("JSON query: " + query);
-		return query(query, auths);
-	}
-	
-	/*
-	 * (non-Javadoc)
-	 * @see sample.query.IQuery#yaml(java.lang.String, java.lang.String)
-	 */
-	public Results yaml(String query, String auths) {
-		log.info("YAML query: " + query);
-		return query(query, auths);
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * @see sample.query.IQuery#content(java.lang.String, java.lang.String)
-	 */
-	public Results content(String query, String auths) {
-		log.info("Content query: " + query);
-		Connector connector = null;
-		if (null == instanceName || null == zooKeepers || null == username || null == password)
-			throw new EJBException("Required parameters not set. [instanceName = " + this.instanceName +
-					", zookeepers = " + this.zooKeepers + ", username = " + this.username +
-					", password = " + this.password +"]. Check values in ejb-jar.xml");
-		Instance instance = new ZooKeeperInstance(this.instanceName, this.zooKeepers);
-		try {
-			log.info("Connecting to [instanceName = " + this.instanceName +
-					", zookeepers = " + this.zooKeepers + ", username = " + this.username +
-					", password = " + this.password +"].");
-			connector = instance.getConnector(this.username, this.password.getBytes());
-		} catch (Exception e) {
-			throw new EJBException("Error getting connector from instance", e);
-		}
-
-		//Create list of auths
-		List<String> authorizations = new ArrayList<String>();
-		for (String a : auths.split(","))
-			authorizations.add(a);
-		
-		ContentLogic table = new ContentLogic();
-		table.setTableName(tableName);
-		return table.runQuery(connector, query, authorizations);
-
-	}
-
-	/**
-	 * calls the query logic with the parameters, returns results
-	 * 
-	 * @param query
-	 * @param auths
-	 * @return
-	 * @throws ParseException
-	 */
-	public Results query(String query, String auths) {
-
-		Connector connector = null;
-		if (null == instanceName || null == zooKeepers || null == username || null == password)
-			throw new EJBException("Required parameters not set. [instanceName = " + this.instanceName +
-					", zookeepers = " + this.zooKeepers + ", username = " + this.username +
-					", password = " + this.password +"]. Check values in ejb-jar.xml");
-		Instance instance = new ZooKeeperInstance(this.instanceName, this.zooKeepers);
-		try {
-			log.info("Connecting to [instanceName = " + this.instanceName +
-					", zookeepers = " + this.zooKeepers + ", username = " + this.username +
-					", password = " + this.password +"].");
-			connector = instance.getConnector(this.username, this.password.getBytes());
-		} catch (Exception e) {
-			throw new EJBException("Error getting connector from instance", e);
-		}
-		
-
-		//Create list of auths
-		List<String> authorizations = new ArrayList<String>();
-		for (String a : auths.split(","))
-			authorizations.add(a);
-		
-		QueryLogic table = new QueryLogic();
-		table.setTableName(tableName);
-		table.setMetadataTableName(tableName+"Metadata");
-		table.setIndexTableName(tableName+"Index");
-		table.setReverseIndexTableName(tableName+"ReverseIndex");
-		table.setQueryThreads(threads);
-		table.setUnevaluatedFields("TEXT");
-		table.setNumPartitions(partitions);
-		table.setUseReadAheadIterator(false);
-		return table.runQuery(connector, authorizations, query, null, null, null);
-	}
-	
+  
+  private static final Logger log = Logger.getLogger(Query.class);
+  
+  // Inject values from XML configuration file
+  @Resource(name = "instanceName")
+  private String instanceName;
+  
+  @Resource(name = "zooKeepers")
+  private String zooKeepers;
+  
+  @Resource(name = "username")
+  private String username;
+  
+  @Resource(name = "password")
+  private String password;
+  
+  @Resource(name = "tableName")
+  private String tableName;
+  
+  @Resource(name = "partitions")
+  private int partitions;
+  
+  @Resource(name = "threads")
+  private int threads;
+  
+  private static final String XSL = "http://localhost:8080/accumulo-sample/style.xsl";
+  
+  @PostConstruct
+  public void init() {
+    log.info("Post Construct");
+  }
+  
+  @PreDestroy
+  public void close() {
+    log.info("Close called.");
+  }
+  
+  /*
+   * (non-Javadoc)
+   * 
+   * @see sample.query.IQuery#html(java.lang.String, java.lang.String)
+   */
+  public String html(String query, String auths) {
+    log.info("HTML query: " + query);
+    URL u;
+    try {
+      u = new URL(XSL);
+    } catch (MalformedURLException e1) {
+      throw new EJBException("Unable to load XSL stylesheet", e1);
+    }
+    InputStream xslContent;
+    try {
+      xslContent = u.openStream();
+    } catch (IOException e1) {
+      throw new EJBException("Unable to get xsl content", e1);
+    }
+    
+    StringWriter xml = new StringWriter();
+    StringWriter html = new StringWriter();
+    
+    Results results = query(query, auths);
+    try {
+      // Marshall the query results object
+      JAXBContext ctx = JAXBContext.newInstance(Results.class);
+      Marshaller m = ctx.createMarshaller();
+      m.marshal(results, xml);
+      
+      // Perform XSL transform on the xml.
+      StringReader reader = new StringReader(xml.toString());
+      TransformerFactory tf = TransformerFactory.newInstance();
+      // Create the transformer from the xsl
+      Templates xsl = tf.newTemplates(new StreamSource(xslContent));
+      Transformer t = xsl.newTransformer();
+      t.transform(new StreamSource(reader), new StreamResult(html));
+      
+    } catch (Exception e) {
+      throw new EJBException("Error processing query results", e);
+    } finally {
+      try {
+        xslContent.close();
+      } catch (IOException e) {
+        throw new EJBException("Unable to close input stream", e);
+      }
+    }
+    return html.toString();
+  }
+  
+  /*
+   * (non-Javadoc)
+   * 
+   * @see sample.query.IQuery#xml(java.lang.String, java.lang.String)
+   */
+  public Results xml(String query, String auths) {
+    log.info("XML query: " + query);
+    return query(query, auths);
+  }
+  
+  /*
+   * (non-Javadoc)
+   * 
+   * @see sample.query.IQuery#json(java.lang.String, java.lang.String)
+   */
+  public Results json(String query, String auths) {
+    log.info("JSON query: " + query);
+    return query(query, auths);
+  }
+  
+  /*
+   * (non-Javadoc)
+   * 
+   * @see sample.query.IQuery#yaml(java.lang.String, java.lang.String)
+   */
+  public Results yaml(String query, String auths) {
+    log.info("YAML query: " + query);
+    return query(query, auths);
+  }
+  
+  /*
+   * (non-Javadoc)
+   * 
+   * @see sample.query.IQuery#content(java.lang.String, java.lang.String)
+   */
+  public Results content(String query, String auths) {
+    log.info("Content query: " + query);
+    Connector connector = null;
+    if (null == instanceName || null == zooKeepers || null == username || null == password)
+      throw new EJBException("Required parameters not set. [instanceName = " + this.instanceName + ", zookeepers = " + this.zooKeepers + ", username = "
+          + this.username + ", password = " + this.password + "]. Check values in ejb-jar.xml");
+    Instance instance = new ZooKeeperInstance(this.instanceName, this.zooKeepers);
+    try {
+      log.info("Connecting to [instanceName = " + this.instanceName + ", zookeepers = " + this.zooKeepers + ", username = " + this.username + ", password = "
+          + this.password + "].");
+      connector = instance.getConnector(this.username, this.password.getBytes());
+    } catch (Exception e) {
+      throw new EJBException("Error getting connector from instance", e);
+    }
+    
+    // Create list of auths
+    List<String> authorizations = new ArrayList<String>();
+    for (String a : auths.split(","))
+      authorizations.add(a);
+    
+    ContentLogic table = new ContentLogic();
+    table.setTableName(tableName);
+    return table.runQuery(connector, query, authorizations);
+    
+  }
+  
+  /**
+   * calls the query logic with the parameters, returns results
+   * 
+   * @param query
+   * @param auths
+   * @return
+   * @throws ParseException
+   */
+  public Results query(String query, String auths) {
+    
+    Connector connector = null;
+    if (null == instanceName || null == zooKeepers || null == username || null == password)
+      throw new EJBException("Required parameters not set. [instanceName = " + this.instanceName + ", zookeepers = " + this.zooKeepers + ", username = "
+          + this.username + ", password = " + this.password + "]. Check values in ejb-jar.xml");
+    Instance instance = new ZooKeeperInstance(this.instanceName, this.zooKeepers);
+    try {
+      log.info("Connecting to [instanceName = " + this.instanceName + ", zookeepers = " + this.zooKeepers + ", username = " + this.username + ", password = "
+          + this.password + "].");
+      connector = instance.getConnector(this.username, this.password.getBytes());
+    } catch (Exception e) {
+      throw new EJBException("Error getting connector from instance", e);
+    }
+    
+    // Create list of auths
+    List<String> authorizations = new ArrayList<String>();
+    for (String a : auths.split(","))
+      authorizations.add(a);
+    
+    QueryLogic table = new QueryLogic();
+    table.setTableName(tableName);
+    table.setMetadataTableName(tableName + "Metadata");
+    table.setIndexTableName(tableName + "Index");
+    table.setReverseIndexTableName(tableName + "ReverseIndex");
+    table.setQueryThreads(threads);
+    table.setUnevaluatedFields("TEXT");
+    table.setNumPartitions(partitions);
+    table.setUseReadAheadIterator(false);
+    return table.runQuery(connector, authorizations, query, null, null, null);
+  }
+  
 }



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