uimafit-core/src/test/java/org/apache/uima/fit/ComponentTestBase.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.uima.fit;

import org.apache.uima.fit.factory.TypePrioritiesFactory;
import org.apache.uima.fit.factory.TypeSystemDescriptionFactory;
import org.apache.uima.fit.testing.factory.TokenBuilder;
import org.apache.uima.fit.type.Sentence;
import org.apache.uima.fit.type.Token;
import org.apache.uima.jcas.JCas;
import org.apache.uima.resource.metadata.TypePriorities;
import org.apache.uima.resource.metadata.TypeSystemDescription;
import org.apache.uima.util.CasCreationUtils;
import org.junit.Before;

/**
 * 
 * 
 */
public class ComponentTestBase {

  private static ThreadLocal<JCas> JCAS = new ThreadLocal<JCas>();

  private static ThreadLocal<TypeSystemDescription> TYPE_SYSTEM_DESCRIPTION = new ThreadLocal<TypeSystemDescription>();

  private static ThreadLocal<TypePriorities> TYPE_PRIORITIES = new ThreadLocal<TypePriorities>();

  private static ThreadLocal<TokenBuilder<Token, Sentence>> TOKEN_BUILDER = new ThreadLocal<TokenBuilder<Token, Sentence>>();

  static {
    try {
      TYPE_SYSTEM_DESCRIPTION.set(TypeSystemDescriptionFactory.createTypeSystemDescription());

      TypePriorities tp = TypePrioritiesFactory.createTypePriorities(new String[] {
          "org.apache.uima.fit.type.Sentence", "org.apache.uima.fit.type.AnalyzedText",
          "org.apache.uima.fit.type.Token" });
      TYPE_PRIORITIES.set(tp);

      JCas jCas = CasCreationUtils.createCas(TYPE_SYSTEM_DESCRIPTION.get(), tp, null).getJCas();
      JCAS.set(jCas);

      TokenBuilder<Token, Sentence> tb = new TokenBuilder<Token, Sentence>(Token.class,
              Sentence.class, "pos", "stem");
      TOKEN_BUILDER.set(tb);
    } catch (Exception e) {
      e.printStackTrace();
      System.exit(1);
    }
  }

  protected JCas jCas;

  protected TypeSystemDescription typeSystemDescription;

  protected TypePriorities typePriorities;

  protected TokenBuilder<Token, Sentence> tokenBuilder;

  /**
   * we do not want to create a new JCas object every time we run a test because it is expensive
   * (~100ms on my laptop). Instead, we will have one JCas per thread sitting around that we will
   * reset everytime a new test is called.
   */
  @Before
  public void setUp() {
    jCas = JCAS.get();
    jCas.reset();
    typeSystemDescription = TYPE_SYSTEM_DESCRIPTION.get();
    typePriorities = TYPE_PRIORITIES.get();
    tokenBuilder = TOKEN_BUILDER.get();
  }

}