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Provides common utility functions

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/*
 * Copyright (c) CQSE GmbH
 *
 * 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.conqat.lib.commons.error;

import java.util.ArrayList;
import java.util.List;

import org.conqat.lib.commons.collections.CollectionUtils;
import org.conqat.lib.commons.collections.UnmodifiableList;

/**
 * An exception handler that collects exceptions for later use.
 * 
 * @author hummelb
 */
public class CollectingExceptionHandler
		implements IExceptionHandler {

	/** The exceptions stored. */
	private final List exceptions = new ArrayList<>();

	/** {@inheritDoc} */
	@Override
	public void handleException(X exception) throws NeverThrownRuntimeException {
		exceptions.add(exception);
	}

	/** Returns the list of exception caught so far. */
	public UnmodifiableList getExceptions() {
		return CollectionUtils.asUnmodifiable(exceptions);
	}

	/** Clears the list of exceptions. */
	public void clearExceptions() {
		exceptions.clear();
	}
}