/**
 * Copyright 2010 JBoss Inc
 *
 * 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.drools.factconstraints.client.config;

import java.util.HashMap;
import java.util.Map;
import java.util.Set;

import org.drools.factconstraints.client.ConstraintConfiguration;

public class SimpleConstraintConfigurationImpl implements ConstraintConfiguration {

	private static final long serialVersionUID = 501l;
	private Map<String, String> args = new HashMap<String, String>();
	private String constraintName = null;
	private String factType;
	private String fieldName;

	public SimpleConstraintConfigurationImpl(ConstraintConfiguration constraintConfiguration) {
		copyFrom(constraintConfiguration);
	}

	public SimpleConstraintConfigurationImpl() {
	}

	public Set<String> getArgumentKeys() {
		return args.keySet();
	}

	public Object getArgumentValue(String key) {
		return args.get(key);
	}

	public String getConstraintName() {
		return constraintName;
	}

	public void setConstraintName(String constraintName) {
		this.constraintName = constraintName;
	}

	public String getFactType() {
		return factType;
	}

	public String getFieldName() {
		return fieldName;
	}

	public void setArgumentValue(String key, String value) {
		args.put(key, value);
	}

	public void setFactType(String factType) {
		this.factType = factType;
	}

	public void setFieldName(String fieldName) {
		this.fieldName = fieldName;
	}
	
	public boolean containsArgument(String key) {
		return args.containsKey(key);
	}

	@Override
	public String toString() {
		return "SimpleConstraintConfigurationImpl [args=" + args + ", constraintName=" + constraintName + ", factType="
				+ factType + ", fieldName=" + fieldName + "]";
	}

	private void copyFrom(ConstraintConfiguration other) {
		if (constraintName != null) {
			throw new RuntimeException("can't copy configuration on a configured instance");
		}
		this.constraintName = other.getConstraintName();
		this.factType = other.getFactType();
		this.fieldName = other.getFieldName();
		this.args = new HashMap<String, String>();
		for (String argName : other.getArgumentKeys()) {
			this.args.put(argName, (String) other.getArgumentValue(argName));
		}
	}
}