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A packaging of the IntelliJ Community Edition core-api library. This is release number 1 of trunk branch 142.

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/*
 * Copyright 2000-2014 JetBrains s.r.o.
 *
 * 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 com.intellij.patterns.compiler;

import com.intellij.openapi.components.ServiceManager;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

/**
 * @author Gregory.Shrago
 */
public abstract class PatternCompilerFactory {
  public static PatternCompilerFactory getFactory() {
    return ServiceManager.getService(PatternCompilerFactory.class);
  }

  /**
   * Retrieves pattern classes registered via com.intellij.patterns.patternClass extension.
   * @param alias or null
   * @return pattern classes
   */
  @NotNull
  public abstract Class[] getPatternClasses(@Nullable final String alias);

  @NotNull
  public abstract  PatternCompiler getPatternCompiler(@NotNull Class[] patternClasses);

  @NotNull
  public  PatternCompiler getPatternCompiler(@Nullable final String alias) {
    return getPatternCompiler(getPatternClasses(alias));
  }
}