StubDocumentFactory.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.waveprotocol.wave.model.wave.data.impl;

import org.waveprotocol.wave.model.document.operation.DocInitialization;
import org.waveprotocol.wave.model.id.WaveletId;
import org.waveprotocol.wave.model.wave.data.DocumentFactory;
import org.waveprotocol.wave.model.wave.data.DocumentOperationSink;

/**
 * Dummy {@link DocumentFactory} which throws
 * {@link UnsupportedOperationException} if invoked.
 *
 */
public class StubDocumentFactory implements DocumentFactory<DocumentOperationSink> {

  public static final StubDocumentFactory INSTANCE = new StubDocumentFactory();

  @Override
  public DocumentOperationSink create(WaveletId waveletId, String docId,
       DocInitialization content) {
    throw new UnsupportedOperationException(
        "Unsupported document creation attempt " + waveletId + ":" + docId);
  }
}