1 files changed, 129 insertions, 0 deletions
diff --git a/rosetta/src/main/java/com/att/rosetta/marshal/ObjMarshal.java b/rosetta/src/main/java/com/att/rosetta/marshal/ObjMarshal.java
new file mode 100644
index 0000000..981dd78
--- /dev/null
+++ b/rosetta/src/main/java/com/att/rosetta/marshal/ObjMarshal.java
@@ -0,0 +1,129 @@
+/*******************************************************************************
+ * ============LICENSE_START====================================================
+ * * org.onap.aai
+ * * ===========================================================================
+ * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * * Copyright © 2017 Amdocs
+ * * ===========================================================================
+ * * 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 com.att.rosetta.marshal;
+
+import java.util.Iterator;
+
+import com.att.rosetta.Ladder;
+import com.att.rosetta.Marshal;
+import com.att.rosetta.ParseException;
+import com.att.rosetta.Parsed;
+
+/**
+ * Object Marshal
+ * Assumes has Fields and other Objects
+ * s
+ *
+ * @param <T>
+ */
+public abstract class ObjMarshal<T> extends Marshal<T> {
+	// Note: Not Using List or ArrayList, because there is no "Peek" concept in their iterator.
+	private Marshal<T>[] pml;
+	private int end=0;
+	
+	/**
+	 * @param pm
+	 */
+	@SuppressWarnings("unchecked")
+	protected void add(Marshal<T> pm) {
+		if(pml==null) {
+			pml = new Marshal[Ladder.DEFAULT_INIT_SIZE]; 
+		} else if(end>pml.length) {
+			Object temp[] = pml; 
+			pml = new Marshal[pml.length+Ladder.DEFAULT_INIT_SIZE];
+			System.arraycopy(temp, 0, pml, 0, pml.length);
+		}
+		pml[end]=pm;
+		++end;
+	}
+	
+	/* (non-Javadoc)
+	 * @see com.att.rosetta.Parse#parse(java.lang.Object, com.att.rosetta.Parsed)
+	 */
+	@SuppressWarnings("unchecked")
+	@Override
+	public Parsed<State> parse(T in, Parsed<State> parsed) throws ParseException {
+		Ladder<Iterator<?>> ladder = parsed.state.ladder;
+		Iterator<Marshal<T>> iter = (Iterator<Marshal<T>>)ladder.peek();
+		if(iter==null) {
+			if(pml.length>0) {
+				ladder.push(new FieldsIterator());
+				parsed.event = START_OBJ;
+			} else {
+				ladder.push(DONE_ITERATOR);
+			}
+		} else if (DONE_ITERATOR.equals(iter)) {
+		} else {
+			FieldsIterator fields = (FieldsIterator)iter;
+			ladder.ascend(); // look at field info
+				Iterator<?> currFieldIter = ladder.peek();
+				Marshal<T> marshal;
+				if(currFieldIter==null) {
+					marshal=fields.next();
+				} else if(!DONE_ITERATOR.equals(currFieldIter)) {
+					marshal=fields.peek();
+					if(marshal==null && fields.hasNext())marshal=fields.next();
+				} else if(fields.hasNext()) {
+					marshal=fields.next();
+					ladder.push(null);
+				} else {
+					marshal=null;
+				}
+				
+				if(marshal!=null)
+					parsed = marshal.parse(in, parsed);
+			ladder.descend();
+			if(marshal==null || parsed.event==NONE) {
+				parsed.event = END_OBJ;
+				ladder.push(DONE_ITERATOR);
+			}
+		}
+		return parsed; // if unchanged, then it will end process
+	}
+
+	private class FieldsIterator implements Iterator<Marshal<T>> {
+		private int idx = -1;
+
+		@Override
+		public boolean hasNext() {
+			return idx<end;
+		}
+
+		@Override
+		public Marshal<T> next() {
+			return pml[++idx];
+		}
+
+		public Marshal<T> peek() {
+			return idx<0?null:pml[idx];
+		}
+		
+		@Override
+		public void remove() {
+			pml[idx]=null;
+		}
+		
+	}
+
+}