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/**
*
*  Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
*  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.
*/
package org.apache.tuscany.das.rdb.config.wrapper;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

import org.apache.tuscany.das.rdb.config.Column;
import org.apache.tuscany.das.rdb.config.Table;

public class TableWrapper {

	private Table table;

	public TableWrapper(Table table) {
		this.table = table;
	}

	public String getPropertyName() {
		return table.getPropertyName() == null ? table.getName() : table
				.getPropertyName();
	}

	public Collection getPrimaryKeyNames() {
		ArrayList pkNames = new ArrayList();
		Iterator i = table.getColumn().iterator();
		while (i.hasNext()) {
			Column c = (Column) i.next();
			if (c.isPrimaryKey())
				pkNames.add(c.getName());
		}
		return pkNames;
	}

	public Collection getPrimaryKeyProperties() {

		ArrayList keyProperties = new ArrayList();
		Iterator columns = table.getColumn().iterator();
		while (columns.hasNext()) {
			Column c = (Column) columns.next();
			if (c.isPrimaryKey()) {
				keyProperties.add(getColumnPropertyName(c));
			}
		}

		return keyProperties;
	}

	private String getColumnPropertyName(Column c) {
		if (c.getPropertyName() != null)
			return c.getPropertyName();
		else
			return c.getName();
	}

	public boolean isGeneratedColumnProperty(String name) {
		Column c = getColumnByPropertyName(name);
		return c == null ? false : c.isGenerated();
	}

	// public Object getColumnNameByProperty(String propertyName) {
	// Iterator i = table.getColumn().iterator();
	// while (i.hasNext()) {
	// Column c = (Column) i.next();
	// if (propertyName.equals(c.getPropertyName()))
	// return c.getName();
	// }
	// return propertyName;
	// }

	public String getConverter(String propertyName) {
		Column c = getColumnByPropertyName(propertyName);
		return (c == null) ? null : c.getConverterClassName();
	}

	public Column getColumnByPropertyName(String propertyName) {
		Iterator columns = table.getColumn().iterator();
		while (columns.hasNext()) {
			Column c = (Column) columns.next();
			String property = c.getPropertyName();
			if (property == null)
				property = c.getName();
			if (propertyName.equals(property))
				return c;
		}

		return null;
	}

	public Column getCollisionColumn() {
		Iterator columns = table.getColumn().iterator();
		while (columns.hasNext()) {
			Column c = (Column) columns.next();
			if ( c.isCollision() )
				return c;
		}

		return null;

	}

	public String getCollisionColumnPropertyName() {
		Column c = getCollisionColumn();
		if ( c.getPropertyName() != null ) 
			return c.getPropertyName();
		else
			return c.getName();
	}
}