AbstractResult.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 org.apache.sling.ide.impl.resource.transport;

import org.apache.sling.ide.transport.RepositoryException;
import org.apache.sling.ide.transport.Result;

public class AbstractResult<T> implements Result<T> {

	public static <T> Result<T> success(T payload) {
		
		return new AbstractResult<>(true, payload, null);
	}

	public static <T> Result<T> failure(RepositoryException e) {
		
		return new AbstractResult<>(false, null, e);
	}
	
	private final boolean success;
	private final RepositoryException exception;
	private final T payload;

	private AbstractResult(boolean success, T payload, RepositoryException exception) {
		this.success = success;
		this.exception = exception;
		this.payload = payload;
	}
	
	@Override
	public T get() throws RepositoryException {
		
		if ( success )
			return payload;
		
		throw exception;
	}
	
	public boolean isSuccess() {
		return success;
	}
	
	@Override
	public String toString() {
		
		return String.format("%4s %s", success ? "OK" : "FAIL", success ? "" : exception.getMessage() );
	}
}