package org.teiid.translator.document;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.teiid.language.Join.JoinType;
import org.teiid.metadata.Column;
import org.teiid.metadata.Table;
public class DocumentNode {
private Table table;
private boolean collection;
protected DocumentJoinNode joinNode;
public DocumentNode() {
}
public DocumentNode(Table t, boolean collection) {
this.table = t;
this.collection = collection;
}
public DocumentJoinNode joinWith(JoinType joinType, DocumentNode right) {
this.joinNode = new DocumentJoinNode(this, joinType, right);
return this.joinNode;
}
public Table getTable() {
return this.table;
}
public String getName() {
if (this.table.getNameInSource() != null) {
return this.table.getNameInSource();
}
return this.table.getName();
}
public boolean isCollection() {
return this.collection;
}
public List<String> getIdentityColumns(){
if (this.table.getPrimaryKey() == null) {
return Collections.emptyList();
}
ArrayList<String> keys = new ArrayList<String>();
for (Column column:this.table.getPrimaryKey().getColumns()) {
keys.add(column.getName());
}
return keys;
}
public List<Map<String, Object>> tuples(Document document) {
List<Map<String, Object>> joined = new ArrayList<Map<String, Object>>();
Map<String, Object> row = new LinkedHashMap<String, Object>();
Map<String, Object> properties = document.getProperties();
if (properties != null && !properties.isEmpty()) {
row.putAll(properties);
}
if (this.joinNode == null) {
joined.add(row);
} else {
joined = this.joinNode.mergeTuples(Arrays.asList(row), document);
}
return joined;
}
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(this.getName());
if (joinNode != null) {
sb.append(this.joinNode);
}
return sb.toString();
}
}