org.hcjf.bson.BsonDocument Maven / Gradle / Ivy
package org.hcjf.bson;
import java.util.*;
/**
* Bson document implementation.
* @author javaito
*/
public class BsonDocument extends BsonCollection {
private static final String JSON_DOCUMENT_START = "{";
private static final String JSON_DOCUMENT_END = "}";
/**
* Default constructor.
*/
public BsonDocument() {
//4 bytes to length and 1 byte for the separator 0x00
this(null, DEFAULT_COLLECTION_SIZE);
}
/**
* Constructor by map.
* @param values Map with the document fields and values.
*/
public BsonDocument(Map values) {
this(null, values);
}
/**
* Constructor by name.
* @param name Name of the document.
*/
public BsonDocument(String name) {
this(name, DEFAULT_COLLECTION_SIZE);
}
/**
* Constructor by name and map.
* @param name Name of the document.
* @param values Map with the document fields and values.
*/
public BsonDocument(String name, Map values) {
this(name, DEFAULT_COLLECTION_SIZE);
if(values == null) {
throw new IllegalArgumentException("");
}
Object value;
for(String key : values.keySet()) {
value = values.get(key);
if(value != null) {
put(key, value);
}
}
}
/**
* Constructor by name and length.
* @param name Name of the document.
* @param length Length of the document.
*/
public BsonDocument(String name, Integer length) {
super(name, length);
}
/**
* Returns an iterator over elements of type {@code T}.
* @return an Iterator.
*/
@Override
public final Iterator iterator() {
return getValue().keySet().iterator();
}
/**
* Add an element into the document.
* @param element Bson element.
*/
public final void put(BsonElement element) {
putElement(element);
}
/**
* Add an element into the document.
* @param elementName Element name.
* @param value Element value.
*/
public final void put(String elementName, Object value) {
if(value instanceof Map) {
put(new BsonDocument(elementName, (Map)value));
} else if(value instanceof List) {
put(new BsonArray(elementName, (List