1 files changed, 83 insertions, 0 deletions
diff --git a/rosetta/src/main/java/org/onap/aaf/rosetta/marshal/DocMarshal.java b/rosetta/src/main/java/org/onap/aaf/rosetta/marshal/DocMarshal.java
new file mode 100644
index 0000000..47ee596
--- /dev/null
+++ b/rosetta/src/main/java/org/onap/aaf/rosetta/marshal/DocMarshal.java
@@ -0,0 +1,83 @@
+/*******************************************************************************
+ * ============LICENSE_START====================================================
+ * * org.onap.aaf
+ * * ===========================================================================
+ * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * * ===========================================================================
+ * * 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.
+ * * ============LICENSE_END====================================================
+ * *
+ * * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ * *
+ ******************************************************************************/
+package org.onap.aaf.rosetta.marshal;
+
+import java.util.Iterator;
+
+import org.onap.aaf.rosetta.Ladder;
+import org.onap.aaf.rosetta.Marshal;
+import org.onap.aaf.rosetta.ParseException;
+import org.onap.aaf.rosetta.Parsed;
+
+public class DocMarshal<T> extends Marshal<T> {
+	private Marshal<T> root;
+	
+	public DocMarshal(Marshal<T> root) {
+		this.root = root;
+	}
+	
+	@Override
+	public Parsed<State> parse(T t, Parsed<State> parsed) throws ParseException {
+		Ladder<Iterator<?>> ladder = parsed.state.ladder;
+		Iterator<?> iter = ladder.peek();
+		if(iter==null) {
+			ladder.push(PENDING_ITERATOR);
+			parsed.event = START_DOC;
+		} else if (DONE_ITERATOR.equals(iter)) {
+		} else {
+			ladder.ascend(); // look at field info
+				Iterator<?> currFieldIter = ladder.peek();
+				if(!DONE_ITERATOR.equals(currFieldIter)){
+					parsed = root.parse(t, parsed);
+				}
+			ladder.descend();
+			if(DONE_ITERATOR.equals(currFieldIter) || parsed.event==NONE) {
+				parsed.event = END_DOC;
+				ladder.push(DONE_ITERATOR);
+			}
+		}
+		return parsed; // if unchanged, then it will end process
+
+	}
+
+	public static final Iterator<Void> PENDING_ITERATOR = new Iterator<Void>() {
+		@Override
+		public boolean hasNext() {
+			return false;
+		}
+
+		@Override
+		public Void next() {
+			return null;
+		}
+
+		@Override
+		public void remove() {
+		}
+	};
+
+	public static<T> DocMarshal<T> root(Marshal<T> m) {
+		return (DocMarshal<T>)new DocMarshal<T>(m);
+	}
+
+}