core/src/main/java/com/opensymphony/xwork2/config/impl/LocatableFactory.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 com.opensymphony.xwork2.config.impl;

import com.opensymphony.xwork2.inject.Context;
import com.opensymphony.xwork2.inject.Factory;
import com.opensymphony.xwork2.inject.Scope;
import com.opensymphony.xwork2.util.location.Located;
import com.opensymphony.xwork2.util.location.LocationUtils;

import java.util.LinkedHashMap;

/**
 * Attaches location information to the factory.
 */
public class LocatableFactory<T> extends Located implements Factory<T> {


    private Class implementation;
    private Class type;
    private String name;
    private Scope scope;

    public LocatableFactory(String name, Class type, Class implementation, Scope scope, Object location) {
        this.implementation = implementation;
        this.type = type;
        this.name = name;
        this.scope = scope;
        setLocation(LocationUtils.getLocation(location));
    }

    @SuppressWarnings("unchecked")
    public T create(Context context) {
        Object obj = context.getContainer().inject(implementation);
        return (T) obj;
    }

    @Override
    public Class<? extends T> type() {
        return implementation;
    }

    @Override
    public String toString() {
        String fields = new LinkedHashMap<String, Object>() {
            {
                put("type", type);
                put("name", name);
                put("implementation", implementation);
                put("scope", scope);
            }
        }.toString();
        StringBuilder sb = new StringBuilder(fields);
        sb.append(super.toString());
        sb.append(" defined at ");
        sb.append(getLocation().toString());
        return sb.toString();
    }
}